85 results on '"Khashayar Vaziri"'
Search Results
2. Analysis of Surgery Residency Website Content: Implications during the COVID-19 Era
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Jacob Lambdin, Ryan P. Lin, Erik J. DeAngelis, Khashayar Vaziri, Paul Lin, Juliet Lee, and Hope T. Jackson
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COVID-19 ,Humans ,Internship and Residency ,Surgery ,Prospective Studies ,Fellowships and Scholarships ,Pandemics ,Education - Abstract
Surgery residency program websites (SRW) are an important source of information for prospective applicants. The COVID-19 pandemic spurred a pivot from the traditional in-person interview format to interviews via virtual platforms. Because of the inability to meet in person, the information provided on program websites takes on an increased relevance to applicants. We hypothesized that SRW may be missing content important to applicants. Our study aims to assess SRW for the content which impacts the applicant decision-making process.An internal survey distributed to fourth-year medical students in 2020 at a single academic institution identified the website content most important to applicants. A list of ACGME-accredited SRW as of December 1, 2020 was obtained. Using the Fellowship and Residency Electronic and Interactive Database, websites were assessed for content parameters identified by the survey.Medical students applying to surgical specialties identified fellowship acquisition (94%), faculty information (88%), application contact information (82%), and resident wellness (77%) as the most important website content. Review of SRW websites identified content pertaining to fellowship acquisition and resident wellness in only 60% and 27% of cases respectively. Overall, the SRW of university programs included the most content parameters, followed by hybrid programs, then community programs.Many SRW are missing information that applicants deem important in their decision-making process. Most notably, there is a relative deficiency in information pertaining to fellowship match results and resident wellness. University based programs tend to include more of this information on their websites. SRW should continue to adapt to meet the needs of applicants in an increasingly virtual age.
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- 2022
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3. Trends in utilization of laparoscopic colectomy according to race: an analysis of the NIS database
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Erik J. DeAngelis, James A. Zebley, Ikechukwu S. Ileka, Sangrag Ganguli, Armon Panahi, Richard L. Amdur, Khashayar Vaziri, Juliet Lee, and Hope T. Jackson
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Surgery - Published
- 2022
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4. Impact of preoperative biliary drainage on 30 Day outcomes of patients undergoing pancreaticoduodenectomy for malignancy
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Lynt B. Johnson, Michael A. Napolitano, Andrew D. Sparks, Gregor Werba, Khashayar Vaziri, and Paul P. Lin
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medicine.medical_specialty ,medicine.medical_treatment ,Malignancy ,behavioral disciplines and activities ,Pancreaticoduodenectomy ,Pancreatectomy ,Postoperative Complications ,Cholestasis ,Duodenal Neoplasms ,Preoperative Care ,medicine ,Humans ,Retrospective Studies ,Biliary drainage ,Hepatology ,Wound dehiscence ,business.industry ,Gastroenterology ,medicine.disease ,Surgery ,Jaundice, Obstructive ,Treatment Outcome ,Cohort ,Drainage ,Obstructive jaundice ,business - Abstract
Background Preoperative biliary drainage (PBD) has been advocated to address the plethora of physiologic derangements associated with cholestasis. However, available literature reports mixed outcomes and is based on largely outdated and/or single-institution studies. Methods Patients undergoing PBD prior to pancreaticoduodenectomy (PD) for periampullary malignancy between 2014-2018 were identified in the ACS-NSQIP pancreatectomy dataset. Patients with PBD were propensity-score-matched to those without PBD and 30-day outcomes compared. Results 8,970 patients met our inclusion criteria. 4,473 with obstruction and PBD were matched to 829 with no preoperative drainage procedure. In the non-jaundiced cohort, 711 stented patients were matched to 2,957 without prior intervention. PBD did not influence 30-day mortality (2.2% versus 2.4%) or major morbidity (19.8% versus 20%) in patients with obstructive jaundice. Superficial surgical site infections (SSIs) were more common with PBD (6.8% versus 9.2%), however, no differences in deep or organ-space SSIs were found. Patients without obstruction prior to PBD exhibited a 3-fold increase in wound dehiscence (0.5% versus 1.5%) additionally to increased superficial SSIs. Conclusion PBD was not associated with an increase in 30-day mortality or major morbidity but increased superficial SSIs. PBD should be limited to symptomatic, profoundly jaundiced patients or those with a delay prior to PD.
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- 2022
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5. Attending guidance advised: educational quality of surgical videos on YouTube
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Jordan M. Estroff, Hope T. Jackson, Chen-min S. Hung, Paul P. Lin, Noor Habboosh, Khashayar Vaziri, Megan T. Quintana, Richard Amdur, Deepika Potarazu, Erik J. DeAngelis, and Juliet Lee
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Medical education ,Cronbach's alpha ,Vetting ,Visual analogue scale ,business.industry ,Gold standard ,Rubric ,Medicine ,Surgery ,business ,Competence (human resources) ,Checklist ,Likert scale - Abstract
YouTube is the most used platform for case preparation by surgical trainees. Despite its popular use, studies have noted limitations in surgical technique, safety, and vetting of these videos. This study identified the most viewed laparoscopic cholecystectomy (LC) videos on YouTube and analyzed the ability of attendings, residents, and medical students to identify critical portions of the procedure, technique, and limitations of the videos. An incognito search was conducted on YouTube using the term “laparoscopic cholecystectomy.” Results were screened for length, publication date, and language. The top ten most viewed videos were presented to general surgery attendings, residents, and medical students at a single academic institution. Established rubrics were used for evaluation, including the Critical View of Safety (CVS) for LC, a modified Global Operative Assessment of Laparoscopic Skills (GOALS) score, a task-specific checklist, and visual analog scales for case difficulty and operator competence. Educational quality and likelihood of video recommendation for case preparation were evaluated using a Likert scale. Attending assessments were considered the gold standard. Six attending surgeons achieved excellent internal consistency on CVS, educational quality, and likelihood of recommendation scales, with Cronbach alpha (⍺) of 0.93, 0.92, and 0.92, respectively. ⍺ was ≥ 0.7 in all the other scales measured. Attending evaluations revealed that only one of the ten videos attained all three established CVS criteria. Four videos demonstrated none of the CVS criteria. The mean educational quality (mEQ) was 4.63 on a 10-point scale. The mean likelihood of recommendation (mLoR) for case preparation was 2.3 on a 5-point scale. Senior resident assessments (Postgraduate Year (PGY)4 + , n = 12) aligned with attending surgeons, with no statistically significant differences in CVS attainment, mEQ, and mLoR. Junior residents (PGY1-3, n = 17) and medical students (MS3-4, n = 20) exhibited significant difference with attendings in CVS attainment, mEQ, and mLoR for more than half the videos. Both groups tended to overrate videos compared to attendings. YouTube is the most popular unvetted resource used for case presentation by surgical trainees. Attending evaluations revealed that the most viewed LC videos on YouTube did not attain the CVS, and were deemed as inappropriate for case preparation, with low educational value. Senior resident video assessments closely aligned with attendings, while junior trainees were more likely to overstate video quality and value. Attending guidance and direction of trainees to high-quality, vetted resources for surgical case preparation is needed. This may also suggest a need for surgical societies with platforms for video sharing to prioritize the creation and dissemination of high-quality videos on easily accessible public platforms.
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- 2021
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6. Surgical Education and Training in the US: a Collaborative Effort to Deliver the Next Generation of Surgeons
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Barbara L. Bass, Khashayar Vaziri, and Hope T. Jackson
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Surgical education ,American College of Surgeons ,Medical education ,business.industry ,Surgical training ,American Board of Surgery ,education ,ComputingMethodologies_IMAGEPROCESSINGANDCOMPUTERVISION ,Experiential learning ,Training (civil) ,GeneralLiterature_MISCELLANEOUS ,Skills training ,Accreditation Council for Graduate Medical Education ,ComputingMethodologies_PATTERNRECOGNITION ,ComputingMilieux_COMPUTERSANDEDUCATION ,Medicine ,Original Article ,Surgery ,Professional association ,business ,Curriculum ,ComputingMethodologies_COMPUTERGRAPHICS ,Surgical patients - Abstract
The foundational principles of surgical training in the USA are based on didactic education, structured skill training, and experiential learning in surgical patient care with the supervision of surgical faculty. A consortium of professional organizations, academic institutions, and teaching hospitals with surgical faculty provide the structural framework, policies, and curriculum to train and evaluate surgeons capable of independent practice. This manuscript describes the roles of the organizations responsible for surgical training in the USA and highlights areas in evolution in the modern surgical education landscape.
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- 2021
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7. Racial-Ethnic Disparities in Against Medical Advice Hospital Discharge After Colectomy in the USA: a Retrospective Cohort Study
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Michael Mazzeffi, Ryan Keneally, Hope T. Jackson, Bhiken Naik, Rundell Douglas, Danielle Davison, and Khashayar Vaziri
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Gastroenterology ,Surgery - Published
- 2022
8. Patient Risk Factors Associated with Increased Morbidity and Mortality Following Revisional Laparoscopic Bariatric Surgery for Inadequate Weight Loss or Weight Recidivism: an Analysis of the ACS-MBSAQIP Database
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Erik J. DeAngelis, Khashayar Vaziri, Hope T. Jackson, Richard Amdur, Ivy N. Haskins, and Jacob Lambdin
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Sleeve gastrectomy ,medicine.medical_specialty ,Hospital readmission ,Nutrition and Dietetics ,Database ,Recidivism ,business.industry ,Endocrinology, Diabetes and Metabolism ,medicine.medical_treatment ,Prehabilitation ,Patient risk ,030209 endocrinology & metabolism ,Patient counseling ,computer.software_genre ,Logistic regression ,Surgery ,03 medical and health sciences ,0302 clinical medicine ,Weight loss ,medicine ,030211 gastroenterology & hepatology ,medicine.symptom ,business ,computer - Abstract
Revisional bariatric operations are associated with increased morbidity and mortality compared with primary bariatric operations. The purpose of this study was to determine if preoperative patient variables are associated with an increased risk of 30-day morbidity and mortality following revisional laparoscopic bariatric surgery for inadequate weight loss or weight recidivism and to generate expected model probabilities in order to risk stratify individual patients undergoing these operations. All patients undergoing revisional laparoscopic Roux-en-Y gastric bypass (RYGB) or sleeve gastrectomy (SG) from 2015 to 2016 were identified with the American College of Surgeons Metabolic and Bariatric Surgery Quality Improvement Program (ACS-MBSAQIP) database. The association of preoperative patient variables with 30-day morbidity and mortality was investigated using multivariable logistic regression analysis. Predictive outcome models were developed for each outcome of interest. A total of 13,551 patients met inclusion criteria; 5310 (39.2%) underwent revisional RYGB. Each of the available preoperative variables was associated with one or more of the 30-day morbidity and mortality outcomes of interest. The strength of the predictive models, as reflected by the area under the curve, ranged from 0.63 for 30-day unplanned hospital readmission to 0.92 for cardiac events. Preoperative patient and surgical variables are associated with an increased risk of 30-day morbidity and mortality following laparoscopic revisional bariatric surgery. With these results, we have built a risk calculator that can be used as a resource for prehabilitation and patient counseling prior to revisional bariatric surgery.
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- 2020
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9. Appropriate patient selection facilitates safe discharge from the PACU after laparoscopic ventral hernia repair: an analysis of the AHSQC database
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Ivy N. Haskins, Khashayar Vaziri, Arielle J. Perez, Sharon Phillips, Li-Ching Huang, and Timothy M. Farrell
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medicine.medical_specialty ,biology ,Database ,business.industry ,Ventral hernia repair ,Hepatology ,biology.organism_classification ,computer.software_genre ,Chronic liver disease ,medicine.disease ,Pacu ,03 medical and health sciences ,0302 clinical medicine ,030220 oncology & carcinogenesis ,Internal medicine ,Hospital admission ,medicine ,Operative time ,030211 gastroenterology & hepatology ,Surgery ,Hernia ,business ,computer ,Abdominal surgery - Abstract
The postoperative management of patients undergoing laparoscopic ventral hernia repair (VHR) remains relatively unknown. The purpose of our study was to determine if patient and hernia-specific factors could be used to predict the likelihood of hospital admission following laparoscopic VHR using the Americas Hernia Society Quality Collaborative (AHSQC) database. All patients who underwent elective, laparoscopic VHR with mesh placement from October 2015 through April 2019 were identified within the AHSQC database. Patients without clean wounds, those with chronic liver disease, and those without 30-day follow-up data were excluded from our analysis. Patient and hernia-specific variables were compared between patients who were discharged from the post-anesthesia care unit (PACU) and patients who required hospital admission. Comparisons were also made between the two groups with respect to 30-day morbidity and mortality events. A total of 1609 patients met inclusion criteria; 901 (56%) patients were discharged from the PACU. The proportion of patients discharged from the PACU increased with each subsequent year. Several patient comorbidities and hernia-specific factors were found to be associated with postoperative hospital admission, including older age, repair of a recurrent hernia, a larger hernia width, longer operative time, drain placement, and use of mechanical bowel preparation. Patients who required hospital admission were more likely than those discharged from the PACU to be readmitted to the hospital within 30 days (4% vs. 2%, respectively) and to experience a 30-day morbidity event (18% vs. 8%, respectively). Patient- and hernia-specific factors can be used to identify patients who can be safely discharged from the PACU following laparoscopic VHR. Additional studies are needed to determine if appropriate patient selection for discharge from the PACU leads to decreased healthcare costs for laparoscopic VHR over the long-term.
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- 2020
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10. Attending Specialization and 30-Day Outcomes Following Laparoscopic Bariatric Surgery: an Analysis of the ACS-MBSAQIP Database
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Hope T. Jackson, Khashayar Vaziri, Andrew D. Sparks, Ada Graham, Sheena W. Chen, Paul P. Lin, and Ivy N. Haskins
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medicine.medical_specialty ,Sleeve gastrectomy ,Nutrition and Dietetics ,Database ,business.industry ,Endocrinology, Diabetes and Metabolism ,medicine.medical_treatment ,Gastric bypass ,Specialty ,030209 endocrinology & metabolism ,Perioperative ,computer.software_genre ,Surgery ,03 medical and health sciences ,0302 clinical medicine ,Hospital volume ,Surgery outcome ,medicine ,030211 gastroenterology & hepatology ,business ,computer - Abstract
Surgeon and hospital volume are factors that have been shown to impact outcomes following bariatric surgery. Nevertheless, there is a paucity of literature investigating surgeon training on bariatric surgery outcomes. The purpose of our study was to determine if bariatric specialty training leads to improved short-term outcomes following laparoscopic bariatric surgery using the American College of Surgeons Metabolic and Bariatric Surgery Accreditation Quality Improvement Program (ACS-MBSAQIP) database. All patients undergoing first-time, elective, laparoscopic bariatric surgery from 2015 to 2016 were identified within the ACS-MBSAQIP database. Patients were divided into two groups based on the type of bariatric procedure performed and the surgeon performing the procedure. Thirty-day outcomes were compared between the groups using multivariable logistic regression analysis. A total of 140,340 patients met inclusion criteria. Higher risk patients with more associated comorbidities underwent bariatric surgery by a metabolic and bariatric surgeon. After controlling for these differences, patients who underwent Roux-en-Y gastric bypass (RYGB) had similar 30-day irrespective of the surgeon performing the procedure while patients who underwent sleeve gastrectomy (SG) by a metabolic and bariatric surgeon (MBS) had improved 30-day outcomes. Surgeon type is associated with 30-day morbidity and mortality outcomes for SG but not for RYGB. These differences in 30-day morbidity and mortality outcomes may be facilitated by institutional factors, surgeon experience, and participation in bariatric surgery accredited centers. Standardization of the perioperative process for both surgeons and institutions may improve 30-day morbidity and mortality outcomes for all patients who undergo laparoscopic bariatric surgery.
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- 2020
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11. The effect of bougie size and distance from the pylorus on dehydration after laparoscopic sleeve gastrectomy: an analysis of the ACS-MBSAQIP database
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Paul P. Lin, Andrew D. Sparks, Ada Graham, Hope T. Jackson, Sheena W. Chen, Ivy N. Haskins, and Khashayar Vaziri
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Adult ,Male ,Sleeve gastrectomy ,medicine.medical_specialty ,medicine.medical_treatment ,Bariatric Surgery ,030209 endocrinology & metabolism ,computer.software_genre ,Patient Readmission ,03 medical and health sciences ,Postoperative Complications ,0302 clinical medicine ,Gastrectomy ,medicine ,Humans ,Gastric sleeve ,Pylorus ,Retrospective Studies ,Laparoscopic sleeve gastrectomy ,Hospital readmission ,Dehydration ,Database ,business.industry ,Middle Aged ,Surgical Instruments ,Obesity, Morbid ,Surgery ,medicine.anatomical_structure ,Female ,030211 gastroenterology & hepatology ,business ,computer - Abstract
Dehydration is the most common cause of readmission after laparoscopic sleeve gastrectomy (SG). Bougie size and distance from the pylorus, both of which have been associated with rates of dehydration postoperatively, varies by surgeon and across institutions.To determine if there is an association between bougie size or distance from the pylorus on the rate of dehydration after laparoscopic SG.American College of Surgeons Metabolic and Bariatric Surgery Accreditation Quality Improvement Program database.All patients undergoing first-time, elective laparoscopic SG from 2015-2016 were identified. The association of bougie size and distance from the pylorus on the rate of dehydration within the first 30 days postoperatively was investigated.The inclusion criteria were met by 170,751 patients. The most commonly used bougie size was 36 Fr and the most common distance from the pylorus at which the gastric sleeve was started was 5 cm. Patients were divided into 4 groups based on bougie size and distance from the pylorus (Group 1: bougie size36 Fr, pylorus distance4 cm; Group 2: bougie size ≥36 Fr, pylorus distance4 cm; Group 3: bougie size ≥36 Fr, pylorus distance ≥4 cm; and Group 4: bougie size36 Fr, pylorus distance ≥4 cm). Patients in Group 4 were significantly less likely than any other group to experience dehydration-related complications.Both distance from the pylorus and bougie size are significantly associated with dehydration-related complications after SG. Consideration should be made for standardizing these technical aspects of SG to help reduce the rate of postoperative dehydration and hospital readmission.
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- 2019
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12. Arterial, but Not Venous, Reconstruction Increases 30-Day Morbidity and Mortality in Pancreaticoduodenectomy
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Jeremy L. Holzmacher, Bridget C. Huysman, Tammy Ju, Paul P. Lin, Khashayar Vaziri, Anton N. Sidawy, Gregor Werba, and Sara L. Zettervall
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medicine.medical_specialty ,medicine.medical_treatment ,030230 surgery ,Pancreaticoduodenectomy ,03 medical and health sciences ,Pancreatectomy ,Postoperative Complications ,0302 clinical medicine ,Pancreatic cancer ,medicine ,Humans ,Retrospective Studies ,Chemotherapy ,business.industry ,Gastroenterology ,Odds ratio ,Perioperative ,medicine.disease ,Confidence interval ,Surgery ,Pancreatic Neoplasms ,Pancreatic fistula ,030220 oncology & carcinogenesis ,Heart failure ,Morbidity ,business - Abstract
Vascular reconstruction during pancreaticoduodenectomy is increasingly utilized to improve pancreatic cancer resectability. However, few multi-institutional studies have evaluated the morbidity and mortality of arterial and venous reconstruction during this procedure. A retrospective analysis was performed utilizing the targeted pancreas module of the American College of Surgeons National Surgical Quality Improvement Program (NSQIP) for pancreaticoduodenectomy from 2014 to 2015. Demographics, comorbidities, and 30-day outcomes for patients who underwent venous or arterial reconstruction and both were compared to no reconstruction. A total of 3002 patients were included in our study: 384 with venous reconstruction, 52 with arterial, 81 with both, and 2566 without. Compared to patients without reconstruction, those who underwent venous reconstruction had more congestive heart failure (1.8% vs 0.2%, P
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- 2019
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13. The Effect of Pancreaticojejunostomy Technique on Fistula Formation Following Pancreaticoduodenectomy in the Soft Pancreas
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Tammy Ju, Jeremy L. Holzmacher, Khashayar Vaziri, Sara L. Zettervall, Paul P. Lin, Samantha N. Olafson, and Lisbi Rivas
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Male ,medicine.medical_specialty ,Percutaneous ,Fistula ,medicine.medical_treatment ,Anastomosis ,Pancreaticoduodenectomy ,Pancreatic Fistula ,03 medical and health sciences ,Postoperative Complications ,0302 clinical medicine ,Pancreaticojejunostomy ,medicine ,Humans ,In patient ,Pancreas ,business.industry ,Incidence ,Gastroenterology ,Invagination ,Middle Aged ,medicine.disease ,Quality Improvement ,United States ,Surgery ,medicine.anatomical_structure ,Pancreatic fistula ,030220 oncology & carcinogenesis ,Female ,030211 gastroenterology & hepatology ,business - Abstract
A soft pancreas has been associated with an increased risk of post-operative pancreatic fistula formation. Few studies have evaluated the effect of anastomotic technique (duct to mucosa vs invagination) on fistula formation. This study aims to compare the effect of anastomotic technique on fistula formation among patients with a soft pancreas in a large multiinstitutional database. The targeted pancreas module of the American College of Surgeons–National Surgical Quality Improvement Program (NSQIP) Database was used. All patients with a soft pancreas who underwent pancreaticoduodenectomy from 2014 to 2015 were identified. Demographic data, comorbid conditions, operative variables, and 30-day outcomes were compared using univariate and multivariable analyses. A total of 975 patients met inclusion criteria. Eight-hundred fifty four (88%) underwent a duct to mucosa pancreaticojejunostomy technique and 121 (12%) underwent invagination. Patients who underwent invagination had higher 30-day mortality (5.8% vs 1.4%, p
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- 2019
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14. The Effect of a Microlearning Module on Knowledge Acquisition in Surgery Clerkship Students
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Brynne A. Ichiuji, Erik J. DeAngelis, Florina Corpodean, Jamie Thompson, Lauren Arsenault, Richard L. Amdur, Khashayar Vaziri, Juliet Lee, and Hope T. Jackson
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Students, Medical ,Clinical Clerkship ,Humans ,Surgery ,Curriculum ,Educational Measurement ,Education ,Education, Medical, Undergraduate - Abstract
Microlearning has been found to be beneficial in other areas of healthcare education. The purpose of this study was to investigate the effect of a microlearning module compared to a traditional online learning module in undergraduate medical education.A microlearning module was developed to cover the etiology and management of gallbladder disease. Surgery clerkship students were randomized into 2 groups. One group began with the microlearning module (MLM). The second group began with a 45 minute commercially available module centered on gallbladder disease (WISE-MD™). Halfway through the clerkship, the groups crossed over to the other learning intervention. Student knowledge was assessed with a test at three time points (pre-test, post-test1, post-test2).Third year surgery clerkship students at George Washington University.There were 56 students in the MLM and 57 in WISE-MDTM groups. In the MLM group, mean scores significantly increased from pre-test to post-test1 and pre-test to post-test2, but significantly decreased from post-test1 to post-test2. In the WISE-MD™ group, mean scores significantly increased from pre-test to post-test1 and pre-test to post-test2, with no significant change from post-test1 to post-test2. After the initial intervention, test scores of post-test1 of the MLM group were significantly higher than the WISE-MD™ group, while there were no significant differences between groups at the pre-test or post-test2 time points.Students exposed to the microlearning module first performed significantly better on a post intervention test than students that used a commercially available product in our standard curriculum. Therefore, the use of microlearning modules may lead to improved knowledge acquisition in surgery clerkship students.
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- 2021
15. The Effect of a Microlearning Module on Knowledge Retention in Surgery Clerkship Students
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Juliet Lee, Brynne A. Ichiuji, Jamie Thompson, Lauren Arsenault, Erik J. DeAngelis, Hope T. Jackson, Florina Corpodean, and Khashayar Vaziri
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Medical education ,business.industry ,Medicine ,Surgery ,Microlearning ,business ,Knowledge retention - Published
- 2021
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16. The Evolving Role of Instagram in General Surgery Residency Programs and Keys to Successful Use in Yours: Input from an Academic, Tertiary Referral Program
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Hope T. Jackson, Juliet Lee, Ivy N. Haskins, Richard Amdur, Khashayar Vaziri, Brynne A. Ichiuji, Rachel Sillcox, and Sangrag Ganguli
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medicine.medical_specialty ,Referral ,General surgery ,media_common.quotation_subject ,Graduate medical education ,Internship and Residency ,Residency program ,Education ,Promotion (rank) ,Cross-Sectional Studies ,Education, Medical, Graduate ,Medical profession ,medicine ,Humans ,Surgery ,Social media ,Psychology ,Referral and Consultation ,Social Media ,Accreditation ,media_common - Abstract
INTRODUCTION Social media has been used as a resource for the dissemination of information in the medical profession. To date, information regarding Instagram use amongst general surgery residency programs is lacking. Our study seeks to detail the use of Instagram amongst general surgery residency programs and to provide suggestions for the practical and successful use of Instagram by general surgery residency programs. METHORDS We performed a cross-sectional search of general surgery residency program Instagram accounts through June 30, 2020. Descriptive details, the pattern of Instagram use by general surgery residency programs, and the use of Instagram by general surgery residency programs over time were investigated. RESULTS Ninety-six (29.1%) of the 330 Accreditation Council for Graduate Medical Education (ACGME) general surgery residency programs were identified on Instagram, of which 86 (89.6%) accounts had at least one post. Academic programs (N = 67; 77.9%) were the most common type of program to have an Instagram account (N = 67). The most popular category of posts was promotion of the residents and faculty. In terms of Instagram activity, nearly 20% of Instagram posts were made in the last three-month block of our study period. Using Pearson correlations, positive associations were found between the number of posts and number of followers (0.62, p < 0.0001), the number of posts and the number of likes (0.42, p < 0.0001) and the number of followers and the number of likes (0.78, p < 0.0001). None of these variables were significantly associated with region or program type. CONCLUSIONS To our knowledge, this is the first description of the use of Instagram by general surgery residency programs. Based on the pattern of use of Instagram by general surgery residency programs, we believe that there are five key elements to the successful use of Instagram by general surgery residency programs, including: Interact, Name, Promote, Utilize, and Team (INPUT).
- Published
- 2020
17. Preoperative Factors Associated with Appendiceal Tumors in Nonelective Appendectomy
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Khashayar Vaziri, Hope T. Jackson, Ivy N. Haskins, Tammy Ju, Andrew D. Sparks, Sheena W. Chen, and Lisbi Rivas
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Adult ,Male ,medicine.medical_specialty ,Multivariate analysis ,Risk Factors ,White blood cell ,medicine ,Appendectomy ,Humans ,Appendiceal tumor ,Retrospective Studies ,business.industry ,Stepwise regression ,Middle Aged ,medicine.disease ,Tumor Pathology ,Appendicitis ,Surgery ,medicine.anatomical_structure ,Appendiceal Neoplasms ,Cohort ,Acute appendicitis ,Acute Disease ,Preoperative Period ,Female ,business - Abstract
Background: The rates of incidental appendiceal neoplasms after appendectomy performed for acute appendicitis is
- Published
- 2020
18. The association of IVC filter placement with the incidence of postoperative pulmonary embolism following laparoscopic bariatric surgery: an analysis of the Metabolic and Bariatric Surgery Accreditation and Quality Improvement Project
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Ivy N. Haskins, Lisbi Rivas, Richard Amdur, Ashlyn E Whitlock, Anton N. Sidawy, Paul P. Lin, Khashayar Vaziri, and Tammy Ju
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Adult ,Male ,medicine.medical_specialty ,Sleeve gastrectomy ,Vena Cava Filters ,Quality management ,medicine.medical_treatment ,Ivc filter ,Bariatric Surgery ,030209 endocrinology & metabolism ,Inferior vena cava ,03 medical and health sciences ,Postoperative Complications ,0302 clinical medicine ,Humans ,Medicine ,Accreditation ,business.industry ,Incidence ,Incidence (epidemiology) ,Middle Aged ,medicine.disease ,Quality Improvement ,Pulmonary embolism ,Surgery ,Venous thrombosis ,medicine.vein ,Female ,Laparoscopy ,030211 gastroenterology & hepatology ,Pulmonary Embolism ,business - Abstract
Background Venous thromboembolism, including pulmonary embolism (PE) and deep venous thrombosis, is a leading cause of morbidity and mortality after bariatric surgery. Inferior vena cava filters (IVCFs) have been used as a method to reduce the incidence of clinically significant PEs after bariatric surgery. Objectives To compare the incidence of postoperative PEs in patients with IVCFs with those in patients without IVCFs at the time of bariatric surgery. Setting American College of Surgeons Metabolic and Bariatric Surgery Accreditation and Quality Improvement Program. Methods All patients undergoing laparoscopic Roux-en-Y gastric bypass or sleeve gastrectomy from 2015 to 2016 were identified within the Metabolic and Bariatric Surgery Accreditation and Quality Improvement Program database. Patients with an IVCF present at the time of surgery were compared with those patients without an IVCF present at the time of surgery with respect to preoperative patient variables, operative variables, incidence of 30-day PE, deep venous thrombosis, and additional 30-day morbidity and mortality. Results A total of 286,704 patients met the inclusion criteria; 2512 (.9%) patients had an IVCF present at the time of surgical intervention, of which 1747 (69.5%) were placed within 30 days of bariatric surgery. Patients with an IVCF were higher-risk patients as determined by previously established risk factors for venous thromboembolism events. When a subgroup matched analysis using variables associated with the risk of venous thromboembolism events was performed looking at higher-risk patients only, there was no statistically significant difference in the incidence of PE based on the presence of an IVCF. Conclusion IVCFs are being selectively placed in higher-risk patients. Despite their selective use, IVCFs do not appear to have a protective benefit with respect to the incidence of postoperative PE events.
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- 2019
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19. Neoadjuvant Radiation Is Associated with Fistula Formation Following Pancreaticoduodenectomy
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Jeremy L. Holzmacher, Paul P. Lin, Khashayar Vaziri, Sara L. Zettervall, Lisbi Rivas, and Tammy Ju
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Male ,medicine.medical_specialty ,Databases, Factual ,medicine.medical_treatment ,Fistula ,030230 surgery ,Pancreaticoduodenectomy ,Pancreatic Fistula ,03 medical and health sciences ,symbols.namesake ,Postoperative Complications ,0302 clinical medicine ,medicine ,Humans ,Fisher's exact test ,Neoadjuvant therapy ,Aged ,Retrospective Studies ,Chemotherapy ,Univariate analysis ,business.industry ,Anastomosis, Surgical ,Pancreatic Ducts ,Gastroenterology ,Chemoradiotherapy, Adjuvant ,Middle Aged ,medicine.disease ,Neoadjuvant Therapy ,Surgery ,Jejunum ,medicine.anatomical_structure ,Chemotherapy, Adjuvant ,Pancreatic fistula ,030220 oncology & carcinogenesis ,symbols ,Female ,Radiotherapy, Adjuvant ,Pancreas ,business - Abstract
Post-operative pancreatic fistulas remain a significant source of morbidity following pancreatic surgery. Few studies have evaluated the effect of neoadjuvant chemotherapy and radiation on this adverse outcome. This study aims to evaluate the effects of neoadjuvant therapy on 30-day morbidity and mortality following pancreaticoduodenectomy. A retrospective analysis was performed utilizing the targeted pancreas module of the National Surgical Quality Improvement Project (NSQIP) from 2014 to 2015 for patients undergoing pancreaticoduodenectomy with pancreaticojejunal reconstruction. A fistula was defined according to the NSQIP definition. Patient demographics, operative variables, and 30-day outcomes were compared between those who received no neoadjuvant therapy, chemoradiation, chemotherapy alone, and radiation alone. Univariate analysis was completed using chi-square, Fisher exact test, Student’s t test, and Mann-Whitney U test where appropriate. Independent predictors of fistula formation were established using multivariable regression. A P value
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- 2018
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20. Open Colectomies of Shorter Operative Time Do Not Result in Improved Outcomes Compared With Prolonged Laparoscopic Operations
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Khashayar Vaziri, Richard Amdur, Sara L. Zettervall, Ivy N. Haskins, Sarah E. Deery, and Paul P. Lin
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Reoperation ,medicine.medical_specialty ,Colectomies ,Open colectomy ,medicine.medical_treatment ,Operative Time ,03 medical and health sciences ,Postoperative Complications ,0302 clinical medicine ,medicine ,Humans ,In patient ,Laparoscopy ,Colectomy ,Surgical approach ,medicine.diagnostic_test ,business.industry ,Perioperative ,Length of Stay ,Surgery ,Treatment Outcome ,Elective Surgical Procedures ,030220 oncology & carcinogenesis ,Operative time ,030211 gastroenterology & hepatology ,business - Abstract
BACKGROUND Laparoscopic colectomies are associated with reduced perioperative morbidity and mortality compared with open surgery. Nevertheless, many surgeons continue to utilize an open surgical approach due to the perceived benefits of shorter operative times. This study aims to compare the outcomes of laparoscopic versus open colectomies of equal or shorter operative duration. METHODS All patients undergoing elective laparoscopic or open colectomy in the American College of Surgeons National Surgical Quality Improvement Project (ACS-NSQIP) were identified from the years 2005 through 2012. Patients were stratified first by operative procedure including partial colectomy, total colectomy, or low anterior resection. Each surgical group was then divided into 4 groups according to operative time
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- 2017
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21. Comparison of Complications Following Laparoscopic and Endoscopic Gastrostomy Placements
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Justin Shafa, Matthew Skancke, Jeremy L. Holzmacher, Babak Sarani, Michal Radomski, Richard Amdur, Khashayar Vaziri, and Sara L. Zettervall
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Male ,Reoperation ,medicine.medical_specialty ,Laparoscopic gastrostomy ,medicine.medical_treatment ,Comorbidity ,Logistic regression ,Enteral administration ,Endoscopy, Gastrointestinal ,03 medical and health sciences ,Enteral Nutrition ,Postoperative Complications ,0302 clinical medicine ,Percutaneous endoscopic gastrostomy ,Humans ,Medicine ,030212 general & internal medicine ,Aged ,Retrospective Studies ,Gastrostomy ,business.industry ,Incidence (epidemiology) ,Gastroenterology ,Endoscopic gastrostomy ,Middle Aged ,Surgery ,Female ,Laparoscopy ,030211 gastroenterology & hepatology ,business ,Complication - Abstract
Percutaneous endoscopic gastrostomy (PEG) and laparoscopic gastrostomy (LG) placements provide enteral access to patients unable to tolerate oral feeds. Limited data comparing PEG and LG outcomes is available in adults. This study compares complications between PEG and LG placements. A retrospective chart review was completed for patients undergoing PEG or LG placement at a single academic center between 2007 and 2014. Patient demographics, comorbidities, and Charlson Comorbidity Index (CCI) were compared. Logistic regression was utilized to identify independent predictors for complication. Two hundred and twenty-four patients (164 PEGs and 60 LGs) were evaluated. Patients undergoing LG had a higher incidence of prior surgery (42 vs 20%; P
- Published
- 2017
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22. A calculator for mortality following emergency general surgery based on the American College of Surgeons National Surgical Quality Improvement Program database
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Samir Agarwal, Mary E. Schroeder, Patrick Maluso, Babak Sarani, Richard Amdur, Khashayar Vaziri, and Ivy N. Haskins
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Male ,medicine.medical_specialty ,Databases, Factual ,medicine.medical_treatment ,MEDLINE ,Critical Care and Intensive Care Medicine ,computer.software_genre ,Risk Assessment ,03 medical and health sciences ,0302 clinical medicine ,Risk Factors ,Epidemiology ,medicine ,Humans ,Postoperative Period ,030212 general & internal medicine ,Derivation ,Statistic ,Aged ,Models, Statistical ,Database ,business.industry ,General surgery ,030208 emergency & critical care medicine ,Evidence-based medicine ,Middle Aged ,Stepwise regression ,Quality Improvement ,United States ,Surgical Procedures, Operative ,Female ,Surgery ,Cholecystectomy ,Emergencies ,Risk assessment ,business ,computer - Abstract
BACKGROUND The complex nature of current morbidity and mortality predictor models do not lend themselves to clinical application at the bedside of patients undergoing emergency general surgery (EGS). Our aim was to develop a simplified risk calculator for prediction of early postoperative mortality after EGS. METHODS EGS cases other than appendectomy and cholecystectomy were identified within the American College of Surgeons National Surgery Quality Improvement Program database from 2005 to 2014. Seventy-five percent of the cases were selected at random for model development, whereas 25% of the cases were used for model testing. Stepwise logistic regression was performed for creation of a 30-day mortality risk calculator. Model accuracy and reproducibility was investigated using the concordance index (c statistic) and Pearson correlations. RESULTS A total of 79,835 patients met inclusion criteria. Overall, 30-day mortality was 12.6%. A simplified risk model formula was derived from five readily available preoperative variables as follows: 0.034*age + 0.8*nonindependent status + 0.88*sepsis + 1.1 (if bun ≥ 29) or 0.57 (if bun ≥18 and < 29) + 1.16 (if albumin < 2.7), or 0.61 (if albumin ≥ 2.7 and < 3.4). The risk of 30-day mortality was stratified into deciles. The risk of 30-day mortality ranged from 2% for patients in the lowest risk level to 31% for patients in the highest risk level. The c statistic was 0.83 in both the derivation and testing samples. CONCLUSION Five readily available preoperative variables can be used to predict the 30-day mortality risk for patients undergoing EGS. Further studies are needed to validate this risk calculator and to determine its bedside applicability. LEVEL OF EVIDENCE Prognostic/epidemiological study, level III.
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- 2017
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23. The Use of Mesh in Emergent Ventral Hernia Repair: Effects on Early Patient Morbidity and Mortality
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Richard Amdur, Khashayar Vaziri, Paul P. Lin, and Ivy N. Haskins
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medicine.medical_specialty ,Databases, Factual ,Treatment outcome ,030230 surgery ,Prosthesis Implantation ,03 medical and health sciences ,0302 clinical medicine ,Humans ,Surgical Wound Infection ,Medicine ,Herniorrhaphy ,Retrospective Studies ,business.industry ,Ventral hernia repair ,Gastroenterology ,Retrospective cohort study ,Surgical Mesh ,Quality Improvement ,Hernia, Ventral ,Surgery ,Treatment Outcome ,Increased risk ,Surgical mesh ,030220 oncology & carcinogenesis ,Ventral hernia ,Cohort ,Operative time ,Emergencies ,Morbidity ,business - Abstract
The long-term recurrence rate of ventral hernia repair is 20–50 %, with a higher rate of recurrence in cases that do not use mesh. Previous teachings have cautioned against the use of mesh in contaminated wounds. Therefore, emergent ventral hernia repair is often performed without the use of mesh. Our aim is to determine if mesh is used in these cases and its effect on 30-day wound-related morbidity using the American College of Surgeons National Surgery Quality Improvement Program database. All emergency ventral hernia repairs performed from 2005 to 2013 were identified. The effect of mesh on postoperative morbidity and mortality was investigated. Significance was defined as p
- Published
- 2016
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24. Laparoscopic versus open ventral hernia repair in patients with chronic liver disease
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Khashayar Vaziri, Paul P. Lin, Matthew Skancke, Richard Amdur, Jeremy L. Holzmacher, and Yen-Yi Juo
- Subjects
Liver Cirrhosis ,Male ,Reoperation ,Laparoscopic surgery ,medicine.medical_specialty ,Cirrhosis ,Databases, Factual ,medicine.medical_treatment ,Postoperative Hemorrhage ,Chronic liver disease ,Patient Readmission ,Severity of Illness Index ,End Stage Liver Disease ,03 medical and health sciences ,Postoperative Complications ,0302 clinical medicine ,Internal medicine ,Laparotomy ,Ascites ,medicine ,Humans ,Surgical Wound Infection ,Mortality ,Laparoscopy ,Herniorrhaphy ,Aged ,medicine.diagnostic_test ,business.industry ,Incidence ,Liver Diseases ,General surgery ,Length of Stay ,Middle Aged ,Hepatology ,medicine.disease ,Quality Improvement ,Hernia, Ventral ,Surgery ,Elective Surgical Procedures ,030220 oncology & carcinogenesis ,Chronic Disease ,Female ,030211 gastroenterology & hepatology ,medicine.symptom ,business ,Abdominal surgery - Abstract
Previous studies demonstrated laparoscopic ventral hernia repair (LVHR) to be associated with fewer short-term complications than open ventral hernia repair (OVHR). Little literature is available comparing LVHR and OVHR in chronic liver disease (CLD) patients.Patients with model for end-stage liver disease score ≥9 who underwent elective ventral hernia repair in the National Surgical Quality Improvement Program Database were included. 30-day outcomes were compared between LVHR and OVHR after adjusting for hernia disease severity, baseline comorbidities and demographic factors.A total of 3594 ventral hernia repairs were included, 536 (14.9 %) of which were LVHR. After adjusting for other confounders, LVHR was associated with a lower incidence of wound-related complications (0.23, 95 % CI 0.07-0.74, p = 0.01), shorter length of stay (mean 3.7 vs. 5.0 days, p 0.01) than OVHR, but similar systemic complications (p = 0.77), bleeding complications (p = 0.69), unplanned reoperation (p = 0.74) or readmission (p = 0.40). Propensity score-matched comparison showed similar conclusions. Five hundred and sixty-two patients had ascites, among whom 35 (6.2 %) underwent LVHR. In this subcohort, LVHR was associated with higher mortality (OR 5.36, 95 % CI 1.00-28.60, p = 0.05), systemic complications (OR 7.03, 95 % CI 2.06-24.00, p 0.01), and unplanned reoperation (OR 6.03, 95 % CI 1.51-24.12, p = 0.01) than OVHR.In comparison with OVHR, LVHR is associated with similar short-term outcomes except for lower wound-related complications and shorter length of stay in CLD patients. However, when patients have ascites, LVHR is associated with higher mortality, systemic complications, and unplanned reoperation.
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- 2016
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25. Nasogastric decompression not associated with a reduction in surgery or bowel ischemia for acute small bowel obstruction
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Paige Kulie, Hamza Ijaz, Andrew C. Meltzer, Khashayar Vaziri, Mohammad Alkhunaizi, Daniel J. Berman, and Lorna Richards
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Adult ,Male ,medicine.medical_specialty ,Adolescent ,medicine.medical_treatment ,Population ,Ischemia ,030230 surgery ,Nasogastric Decompression ,Young Adult ,03 medical and health sciences ,Postoperative Complications ,0302 clinical medicine ,Laparotomy ,Intestine, Small ,medicine ,Humans ,education ,Intubation, Gastrointestinal ,Aged ,Retrospective Studies ,education.field_of_study ,business.industry ,030208 emergency & critical care medicine ,Retrospective cohort study ,General Medicine ,Emergency department ,Bowel resection ,Length of Stay ,Middle Aged ,Decompression, Surgical ,medicine.disease ,Surgery ,Bowel obstruction ,Treatment Outcome ,Emergency Medicine ,Female ,business ,Intestinal Obstruction - Abstract
Objectives Small bowel obstructions (SBOs) occur 300,000 times annually leading to $1.3 billion in cost. Approximately 20% of patients require a laparotomy to manage the obstruction and either prevent or treat intestinal ischemia. Early management may play a role in reducing these complications. Nasogastric decompression is commonly used for early management. Our primary objective was to determine if NGD was associated with lower rates of surgery, bowel ischemia or length of stay. Methods We retrospectively enrolled 181 ED patients with SBO from 9/2013 to 9/2015 in order to determine if nasogastric decompression was associated with a reduction in rates of surgery, bowel ischemia or hospital length of stay. Results Our subject population was 46% female, median age of 60.27% of patients received surgery. Nasogastric decompression was used in 51% of patients. There was no association with a reduction in rates of surgery ( p = 0.20) or bowel resection ( p = 0.41) with patients receiving Nasogastric decompression, and no difference in baseline characteristics. Nasogastric decompression was associated with a two-day increase in hospital length of stay. Factors that were significantly associated with surgical exploration of SBO were: female (OR 2.32 (95% CI: 1.01–5.31)) and “definite SBO” on CT (OR 3.29 (95% CI: 1.18–9.20)). Abnormal vital signs, obstipation, and lab values were not predictors of surgery. Conclusion Nasogastric decompression is not associated with a reduction in need for surgery or bowel resection, but is associated with a 2-day increase in median LOS. Women were more likely to receive surgery than men.
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- 2017
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26. Residency Program Websites are the Most Commonly Used Information Source for Applicants
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Sangrag Ganguli, Juliet Lee, Paul P. Lin, Sam Maghami, Hope T. Jackson, Yolanda Haywood, Khashayar Vaziri, and Sheena W. Chen
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Medical education ,business.industry ,Information source ,Medicine ,Surgery ,Residency program ,business - Published
- 2020
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27. Optimizing the Benefits of Roux-en-Y Gastric Bypass with Preoperative Optimization of Diabetes Mellitus: Is There an Ideal Glycosylated Hemoglobin Level?
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Jeffrey N. Lipman, Timothy M. Farrell, Andrew D. Sparks, Hope T. Jackson, Ivy N. Haskins, and Khashayar Vaziri
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medicine.medical_specialty ,Ideal (set theory) ,business.industry ,Internal medicine ,Diabetes mellitus ,Gastric bypass ,medicine ,Surgery ,Hemoglobin ,medicine.disease ,business ,Gastroenterology ,Roux-en-Y anastomosis - Published
- 2020
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28. Barriers to bariatric surgery: Factors influencing progression to bariatric surgery in a U.S. metropolitan area
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Samantha N. Olafson, Ivy N. Haskins, Paul P. Lin, Lisbi Rivas, Andrew D. Sparks, Suzanne Arnott, Ashlyn E Whitlock, Khashayar Vaziri, and Tammy Ju
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Adult ,Male ,medicine.medical_specialty ,Urban Population ,Population ,Bariatric Surgery ,030209 endocrinology & metabolism ,Logistic regression ,Health Services Accessibility ,03 medical and health sciences ,0302 clinical medicine ,Surveys and Questionnaires ,medicine ,Humans ,education ,Retrospective Studies ,Univariate analysis ,education.field_of_study ,business.industry ,Odds ratio ,Middle Aged ,medicine.disease ,Metropolitan area ,Obesity ,Confidence interval ,United States ,Surgery ,Obesity, Morbid ,Logistic Models ,Socioeconomic Factors ,030211 gastroenterology & hepatology ,Female ,Complication ,business - Abstract
Bariatric surgery is an effective and durable treatment for obesity. However, the number of patients that progress to bariatric surgery after initial evaluation remains low.The purpose of this study was to identify factors influencing a qualified patient's successful progression to surgery in a U.S. metropolitan area.Academic, university hospital.A single-institution retrospective chart review was performed from 2003 to 2016. Patient demographics and follow-up data were compared between those who did and did not progress to surgery. A follow-up telephone survey was performed for patients who failed to progress. Univariate analyses were performed and statistically significant variables of interest were analyzed using a multivariable logistic regression model.A total of 1102 patients were identified as eligible bariatric surgery candidates. Four hundred ninety-eight (45%) patients progressed to surgery and 604 (55%) did not. Multivariable analysis showed that patients who did not progress were more likely male (odds ratio [OR] 2.2 confidence interval [CI]: 1.2-4.2, P.05), smokers (OR 2.4 CI: 1.1-5.4, P.05), attended more nutrition appointments (OR 2.1 CI: 1.5-2.8, P.0001), attended less total preoperative appointments (OR .41 CI: .31-.55, P.0001), and resided in-state compared with out of state (OR .39 CI: .22-.68, P.05). The top 3 patient self-reported factors influencing nonprogression were fear of complication, financial hardship, and insurance coverage.Multiple patient factors and the self-reported factors of fear of complication and financial hardship influenced progression to bariatric surgery in a U.S. metropolitan population. Bariatric surgeons and centers should consider and address these factors when assessing patients.
- Published
- 2018
29. Older Age Confers a Higher Risk of 30-Day Morbidity and Mortality Following Laparoscopic Bariatric Surgery: an Analysis of the Metabolic and Bariatric Surgery Quality Improvement Program
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Ashlyn E Whitlock, Khashayar Vaziri, Tammy Ju, Paul P. Lin, Richard Amdur, Lisbi Rivas, and Ivy N. Haskins
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Adult ,Male ,Sleeve gastrectomy ,medicine.medical_specialty ,Endocrinology, Diabetes and Metabolism ,medicine.medical_treatment ,Bariatric Surgery ,030209 endocrinology & metabolism ,Comorbidity ,Cohort Studies ,03 medical and health sciences ,0302 clinical medicine ,Weight loss ,medicine ,Humans ,Adverse effect ,Laparoscopy ,Nutrition and Dietetics ,medicine.diagnostic_test ,business.industry ,Incidence (epidemiology) ,Age Factors ,Perioperative ,Middle Aged ,medicine.disease ,Quality Improvement ,Surgery ,Obesity, Morbid ,030211 gastroenterology & hepatology ,Female ,medicine.symptom ,business ,Cohort study - Abstract
There is a paucity of literature describing the association of age with the risk of adverse events following bariatric surgery. The purpose of this study is to investigate the association of age with 30-day morbidity and mortality following laparoscopic bariatric surgery using the Metabolic and Bariatric Surgery Accreditation and Quality Improvement Program (MBSAQIP) database. All adult patients undergoing laparoscopic Roux-en-Y gastric bypass (RNGYB) or sleeve gastrectomy (SG) were identified within the MBSAQIP database. Patients were divided into five equal age quintiles. Binary outcomes of interest, including cardiac, pulmonary, wound, septic, clotting, and renal events, in addition to the incidence of related 30-day unplanned reintervention, related 30-day mortality, and a composite morbidity and mortality outcome were compared across the age quintiles and procedures. A total of 266,544 patients met inclusion criteria. Older age was associated with an increased risk of all morbidity outcomes except venous thromboembolism events, 30-day mortality, and the composite morbidity and mortality outcome. Patients who underwent Roux-en-Y gastric bypass had worse outcomes per quintile for almost every outcome of interest when compared to patients who underwent sleeve gastrectomy. Older patients and patients who undergo Roux-en-Y gastric bypass are at an increased risk of perioperative morbidity and mortality following laparoscopic bariatric surgery. Additional studies are needed to determine the association of age with long-term weight loss and cardiometabolic comorbidity resolution following bariatric surgery in order to determine if the increased perioperative risk is offset by improved long-term outcomes in older patients undergoing bariatric surgery.
- Published
- 2018
30. Use of Structured Presentation Formatting and NSQIP Guidelines Improves Quality of Surgical Morbidity and Mortality Conference
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Stanley Knoll, Neerav Patel, Khashayar Vaziri, Sara L. Zettervall, Robert Luke Rettig, Anton N. Sidawy, Lauri Buckley, and Kendal M. Endicott
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medicine.medical_specialty ,media_common.quotation_subject ,Guidelines as Topic ,Likert scale ,03 medical and health sciences ,0302 clinical medicine ,Postoperative Complications ,Intervention (counseling) ,medicine ,Humans ,Quality (business) ,Prospective Studies ,Prospective cohort study ,Adverse effect ,media_common ,business.industry ,Congresses as Topic ,Quality Improvement ,United States ,Surgical morbidity ,030220 oncology & carcinogenesis ,Family medicine ,General Surgery ,Surgical Procedures, Operative ,Etiology ,030211 gastroenterology & hepatology ,Surgery ,Education, Medical, Continuing ,Presentation (obstetrics) ,business - Abstract
BACKGROUND Surgical Morbidity and Mortality (M&M) conference lacks a standardized structure across institutions. We compared implementation of structure and National Surgical Quality Improvement Program's (NSQIP) definitions to organize our M&M and identify cases for discussion versus the usually used method at many centers of case identification by an attending surgeon or resident. METHODS AND MATERIALS A prospective study was performed, over a 10-wk period, to compare the identification of adverse events and the educational value of our M&M conference before and after implementation of structured NSQIP-defined presentations. Chart review was performed by a trained surgical clinical reviewer and trained NSQIP resident of all cases over the study period to identify NSQIP-defined occurrences. All presented M&Ms were evaluated for adequate reporting of adverse events and areas for improvement on a three-point scale. Surveys were administered before and after intervention to assess educational value to resident and faculty on a five-point Likert scale. Survey and presentation data were compared using Student's t-tests. P-values
- Published
- 2018
31. Novel 3-Layer Femoral Herniorrhaphy: Combining the Best of McVay and Shouldice
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Stanley Knoll, Juliet Lee, Khashayar Vaziri, and Arthur J. Nam
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Male ,medicine.medical_specialty ,Groin ,business.industry ,General surgery ,Femoral hernia repair ,Femoral herniorrhaphy ,Surgical Mesh ,Femoral hernia ,medicine.disease ,Hernia, Femoral ,Inguinal hernia ,surgical procedures, operative ,Surgical mesh ,medicine.anatomical_structure ,medicine ,Ligament ,Humans ,Female ,Surgery ,Hernia ,business ,Herniorrhaphy - Abstract
Femoral hernias occur less frequently than inguinal hernias, but are often more challenging to repair surgically. Femoral hernias constitute between 2% and 8% of groin hernias, with the majority afflicting women. Because of the narrow neck and unyielding surrounding structures, femoral hernias are more likely to incarcerate or strangulate than their inguinal counterparts. They commonly present with incarceration of fat or intra-peritoneal contents. There has been extensive controversy in the last several decades concerning optimal approaches to femoral hernia repair, beginning with inguinal vs femoral approaches initially, to current debates about open vs laparoscopic and mesh vs tissue. Annandale is credited with the first inguinal approach to femoral hernia repair. Many other techniques have been described, but the contributions of Chester McVay established the fundamental basis for understanding femoral hernia repair. The McVay repair requires a relaxing incision to obtain a tension-free repair. Since Lichtenstein and colleagues described the use of prosthetic mesh for tension-free herniorrhaphy, many have turned to mesh to address the difficulties of femoral hernia repair, obviating the need for a relaxing incision. The use of prosthetic mesh is not universally applicable to femoral or inguinal hernia repair due to the incidence of strangulation and necrosis causing a potentially contaminated field. In addition, mesh can lead to other complications, such as chronic pain, infection, migration, and erosion. An effective primary tissue repair for femoral hernia is a useful procedure in the armamentarium of the general surgeon. During two recent humanitarian missions to Guatemala, surgeons from the George Washington University Department of Surgery encountered an unusually large incidence of femoral hernias. A technique developed at George Washington University, which combines a classic McVay (Cooper’s ligament [CL]) repair with a
- Published
- 2015
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32. 30-Day Morbidity and Mortality Outcomes of Prolonged Minimally Invasive Kidney Procedures Compared with Shorter Open Procedures: National Surgical Quality Improvement Program Analysis
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Richard Amdur, Sara L. Zettervall, Alice Semerjian, Thomas W. Jarrett, and Khashayar Vaziri
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Male ,medicine.medical_specialty ,Urology ,medicine.medical_treatment ,Operative Time ,Nephrectomy ,Young Adult ,symbols.namesake ,Postoperative Complications ,Humans ,Minimally Invasive Surgical Procedures ,Medicine ,Hospital Mortality ,Fisher's exact test ,Minimally invasive procedures ,Aged ,Analysis of Variance ,Univariate analysis ,business.industry ,Length of Stay ,Middle Aged ,Stepwise regression ,Quality Improvement ,Kidney Neoplasms ,Acs nsqip ,Surgery ,Logistic Models ,Invasive surgery ,symbols ,Operative time ,Female ,Laparoscopy ,Ureter ,business - Abstract
Prolonged operative time (ORT) is often considered a drawback to minimally invasive surgery (MIS) because of increased morbidity. Limited data exist comparing long laparoscopic ORT with similar or shorter open ORT. This study aims to identify ORT when a minimally invasive procedure becomes inferior to its open counterpart.Minimally invasive and open total and partial nephrectomies and nephroureterectomies were identified in the National Surgical Quality Improvement Program (NSQIP) from 2005 to 2012. Procedures were split into open and minimally invasive nephrectomy and then stratified into four ORT groups: 0 to 90 minutes, 91 minutes to 3 hours, 3 to 6 hours, and ≥ 6 hours. Thirty-day mortality and morbidity were analyzed. Univariate analysis was performed using chi-square and Fisher exact tests. Significant univariate results were then tested using stepwise logistic regression, controlling for demographics, comorbidities, and preoperative treatments.There were 14,813 patients identified. Both partial and total minimally invasive kidney procedures had significantly improved outcomes compared with open counterparts of similar ORT. In the total nephrectomy group, a minimally invasive approach had a lower rate of surgical site infections, sepsis, pneumonia, return to operating room, and overall length of stay when compared with open procedures of the same duration. Length of hospital stay decreased in MIS regardless of operative time, except when comparing minimally invasive cases longer than 6 hours with open cases less than 90 minutes. Transfusion rates also significantly decreased in minimally invasive total nephrectomy cases. In the partial nephrectomy group, similar outcomes were seen in terms of length of stay and infectious outcomes. Interestingly, transfusion risk was decreased in the open partial nephrectomy group when comparing cases less than 90 minutes with minimally invasive partial nephrectomies lasting 3 to 6 hours; otherwise there was no significant correlation with transfusion risk.Minimally invasive operations are less morbid than open operations of similar ORT. Longer and likely more complex laparoscopic procedures continue to provide a benefit to patients when compared with shorter and possibly less complex open procedures. These data should be considered during a surgeon's preoperative and operative decision-making.
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- 2015
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33. The effect of resident involvement on bariatric surgical outcomes: an ACS-NSQIP analysis
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Richard Amdur, Paul P. Lin, Kathleen Hayes, Ivy N. Haskins, Khashayar Vaziri, and Jihad Kudsi
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Adult ,Male ,medicine.medical_specialty ,Databases, Factual ,medicine.medical_treatment ,Operative Time ,Bariatric Surgery ,030230 surgery ,Sepsis ,03 medical and health sciences ,0302 clinical medicine ,medicine ,Humans ,Cardiopulmonary resuscitation ,Myocardial infarction ,Dialysis ,business.industry ,Septic shock ,Internship and Residency ,Perioperative ,Length of Stay ,Middle Aged ,medicine.disease ,Quality Improvement ,Pulmonary embolism ,Venous thrombosis ,030220 oncology & carcinogenesis ,Emergency medicine ,Surgery ,Female ,Morbidity ,business - Abstract
Surgical residency training programs in the United States are modeled on the principle of graduated responsibility. Residents are given greater responsibility and autonomy in the operating room and during perioperative care as they gain surgical skills and progress through their training. The impact of this method of surgical training on patient outcomes remains unknown. The purpose of this study is to compare early patient morbidity and mortality after bariatric surgery in cases with and without resident participation using the American College of Surgeons National Surgical Quality Improvement Program database.All patients undergoing bariatric surgery from 2006 through 2010 were identified within the American College of Surgeons National Surgical Quality Improvement Program database. These patients were divided into three groups based on resident involvement in their surgery (no resident, senior-level resident, and junior-level resident). The effect of resident involvement and postgraduate year level on 30-d morbidity and mortality was investigated using composite outcomes, including cardiac events (acute myocardial infarction or cardiac arrest requiring cardiopulmonary resuscitation), pulmonary events (pneumonia, prolonged intubation, or unplanned reintubation), wound (superficial surgical site infection, deep surgical site infection, organ-space infection, or dehiscence), septic events (sepsis and septic shock), clotting events (pulmonary embolism and deep venous thrombosis), and renal events (urinary tract infection and acute kidney injury requiring dialysis). Length of hospital stay, unplanned return to the operating room, and 30-d mortality were also investigated.A total of 19,616 patients underwent bariatric surgery from the year 2006 through 2010; 8960 (45.7%) procedures were performed with resident involvement, with 5406 (36.7%) of these cases involving a senior-level resident. Operations involving a senior-level resident were more likely to experience postoperative cardiac events (P 0.006), pulmonary events (P = 0.03), wound events (P = 0.01), septic events (P 0.002), renal events (P ≤ 0.01), prolonged operative time (P 0.0001), and a prolonged length of hospital stay (P 0.0001) than those that involved either no resident or a junior-level resident.Although bariatric operations involving senior-level residents have more statistically significant morbidity outcomes, these morbidity outcomes are related more to perioperative care rather than intraoperative resident involvement. This suggests that more emphasis on perioperative progressive responsibility may be needed to match operative oversight.
- Published
- 2017
34. The Effect of Neoadjuvant Chemoradiation on Anastomotic Leak and Additional 30-Day Morbidity and Mortality in Patients Undergoing Total Gastrectomy for Gastric Cancer
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Ivy N. Haskins, John Rodriguez, Matthew Kroh, Jeffrey L. Ponksy, Khashayar Vaziri, and Richard Amdur
- Subjects
Male ,medicine.medical_specialty ,medicine.medical_treatment ,Anastomotic Leak ,030230 surgery ,Anastomosis ,Disease-Free Survival ,03 medical and health sciences ,0302 clinical medicine ,Gastrectomy ,Stomach Neoplasms ,Sepsis ,medicine ,Humans ,Postoperative Period ,Survival rate ,Neoadjuvant therapy ,Aged ,Chemotherapy ,business.industry ,Gastroenterology ,Cancer ,Perioperative ,Venous Thromboembolism ,Middle Aged ,medicine.disease ,Neoadjuvant Therapy ,Surgery ,Radiation therapy ,Survival Rate ,Chemotherapy, Adjuvant ,030220 oncology & carcinogenesis ,Female ,Radiotherapy, Adjuvant ,business - Abstract
In addition to increased perioperative morbidity, anastomotic leak following gastric resection for gastric cancer can have detrimental effects on overall and disease-free survival. The risk of anastomotic leak following neoadjuvant therapy remains unknown. The purpose of this study is to investigate the association of preoperative chemotherapy and radiation therapy with postoperative anastomotic leak and additional 30-day morbidity and mortality outcomes following total gastrectomy with reconstruction for gastric cancer using the American College of Surgeons National Surgical Quality Improvement Program (ACS-NSQIP). Patients who underwent total gastrectomy with reconstruction for gastric cancer from 2005 to 2012 were identified. Within the NSQIP database, anastomotic leak is captured as an organ space infection. The association of preoperative chemotherapy and radiation therapy with anastomotic leak and additional 30-day morbidity and mortality outcomes was investigated using chi-squared analysis, Fisher’s exact test, and Student’s t test. A total of 1135 patients met inclusion criteria; 121 (10.7%) patients underwent preoperative chemotherapy within 30 days of surgery, and 53 (4.7%) patients underwent preoperative radiation therapy within 90 days of surgery. Neither preoperative chemotherapy nor radiation therapy was associated with an increased risk of anastomotic leak (p = 0.12 and p = 0.58, respectively). When compared to patients who did not undergo neoadjuvant therapy, patients who underwent either preoperative chemotherapy or radiation therapy did not experience a higher frequency of 30-day mortality (p = 0.41), cardiac (p = 0.49), wound (p = 0.76), renal (p = 0.13), septic (p = 0.55), or venous thromboembolism (p = 0.19) events and were significantly less likely to experience a pulmonary event (p = 0.02). Neoadjuvant therapy prior to gastric resection for gastric cancer is not associated with an increased risk of anastomotic leak or other additional short-term morbidity or mortality.
- Published
- 2017
35. Effects of experience and reference tools on laparoscopic length measurements
- Author
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Matthew L. Holzner, Sara L. Zettervall, Khashayar Vaziri, Richard Amdur, Ezra N. Teitelbaum, Hope T. Jackson, and Jason M. Weissler
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medicine.medical_specialty ,Accuracy and precision ,Students, Medical ,Operative Time ,education ,Box trainer ,Task completion ,Length measurement ,medicine ,Humans ,Measurement precision ,Education, Medical ,business.industry ,Training level ,Internship and Residency ,Reproducibility of Results ,Laparoscopes ,Surgery ,Intestines ,Absolute deviation ,Operative time ,Laparoscopy ,Clinical Competence ,business ,Nuclear medicine - Abstract
The accuracy of surgeons, and surgeons-in-training performing laparoscopic intestinal measurements is unknown. We evaluated the accuracy and precision of laparoscopic length measurements using a box-trainer model with and without the aid of a measuring tool. Surgical attendings, residents, and medical students were studied. A 500 cm length of rope was placed within a laparoscopic box trainer. Subjects completed two length measurements (LM). Participants measured 150 cm of rope for LM #1 and repeated the task using a 10-cm suture as a reference for LM #2. Measurement accuracy was tested by comparing mean LM between training level groups using an independent t test. Measurement precision was tested by comparing the mean deviation of LM from 150 cm. 40 attendings, 40 residents, and 50 medical students were studied. In LM #1, there were no differences in mean length accuracy measured between training level groups. Residents significantly underestimated the true 150 cm length (p
- Published
- 2014
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36. Primary Fascial Closure During Laparoscopic Ventral Hernia Repair Improves Patient Quality of Life: A Multicenter, Blinded Randomized Controlled Trial
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Mike K. Liang, John Scott Roth, Oscar A. Olavarria, Julie L. Holihan, Tien C Ko, Khashayar Vaziri, Shawn Tsuda, Karla Bernardi, and Lillian S. Kao
- Subjects
Male ,medicine.medical_specialty ,Esthetics ,medicine.medical_treatment ,Fasciotomy ,law.invention ,03 medical and health sciences ,0302 clinical medicine ,Patient satisfaction ,Postoperative Complications ,Quality of life ,Randomized controlled trial ,Recurrence ,law ,Humans ,Medicine ,Hernia ,Closure (psychology) ,Laparoscopy ,Herniorrhaphy ,Pain Measurement ,medicine.diagnostic_test ,Ventral hernia repair ,business.industry ,Middle Aged ,medicine.disease ,Hernia, Ventral ,United States ,Surgery ,Patient Satisfaction ,030220 oncology & carcinogenesis ,Quality of Life ,030211 gastroenterology & hepatology ,Female ,Observational study ,business - Abstract
Observational studies have reported conflicting results with primary fascial closure (PFC) versus bridged repair during laparoscopic ventral hernia repair (LVHR).The aim of the study was to determine whether when evaluated in a randomized controlled trial (RCT), PFC compared to bridged repair would improve patient quality of life (QoL).In this blinded, multicenter RCT, patients scheduled for elective LVHR (hernia defects 3 to 10 cm on computed tomography scan) were randomized to PFC versus bridged repair. Primary outcome was change in QoL after LVHR using a validated, hernia-specific survey (1 = poor QoL and 100 = perfect QoL) that measures pain, function, cosmesis, and satisfaction. Secondary outcomes were postoperative surgical site occurrences (including hematoma, seroma, surgical site infection, and wound dehiscence), abdominal eventration, and hernia recurrence. The trial was powered to detect a difference in change in QoL of 7 points between the study groups. Outcomes were compared with Mann-Whitney U test or chi-square.A total of 129 patients underwent LVHR and 107 (83%) completed follow-up at 2 years. Patients from both groups were similar at baseline. On median follow-up of 24 months (range: 9-42), patients treated with LVHR-PFC had on average a 12-point higher improvement in QoL compared to bridged repair (improvement in QoL, 41.3 ± 31.5 vs 29.7 ± 28.7, P value = 0.047). There were no differences in surgical site occurrence, eventration, or hernia recurrence between groups.Among patients undergoing elective LVHR, the fascial defect should be closed. This is the first RCT demonstrating that PFC with LVHR significantly improves patient QoL.This trial was registered with clinicaltrials.gov (NCT02363790).
- Published
- 2019
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37. Emergence of Direct Hernias during Adolescence May Signify Changes in Pediatric to Adult Inguinal Floor Physiology
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Richard Amdur, Todd A. Ponsky, Ian C. Glenn, Vincent Butano, Jeremy L. Holzmacher, and Khashayar Vaziri
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Pediatrics ,medicine.medical_specialty ,business.industry ,Medicine ,Surgery ,business - Published
- 2019
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38. Ventral Hernia Management: Expert Consensus Guided by Systematic Review
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Juan R. Flores Gonzalez, John Scott Roth, Mike K. Liang, Paul Szotek, Julie L. Holihan, Khashayar Vaziri, Jerrod N. Keith, Zeinab M. Alawadi, Shawn Tsuda, Kamal M.F. Itani, Erik P. Askenasy, Jacob A. Greenberg, Hui Sen Chong, David H. Berger, Bryan K. Richmond, Sean B. Orenstein, John A. Harvin, Conrad Ballecer, Shirin Towfigh, Robert G. Martindale, and Matthew I. Goldblatt
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medicine.medical_specialty ,Delphi Technique ,Incisional hernia ,Best practice ,MEDLINE ,Delphi method ,030230 surgery ,03 medical and health sciences ,0302 clinical medicine ,Physical medicine and rehabilitation ,Risk Factors ,medicine ,Humans ,Hernia ,Herniorrhaphy ,business.industry ,Evidence-based medicine ,Surgical Mesh ,medicine.disease ,Hernia, Ventral ,Umbilical hernia ,Surgery ,030220 oncology & carcinogenesis ,Ventral hernia ,business - Abstract
To achieve consensus on the best practices in the management of ventral hernias (VH).Management patterns for VH are heterogeneous, often with little supporting evidence or correlation with existing evidence.A systematic review identified the highest level of evidence available for each topic. A panel of expert hernia-surgeons was assembled. Email questionnaires, evidence review, panel discussion, and iterative voting was performed. Consensus was when all experts agreed on a management strategy.Experts agreed that complications with VH repair (VHR) increase in obese patients (grade A), current smokers (grade A), and patients with glycosylated hemoglobin (HbA1C) ≥ 6.5% (grade B). Elective VHR was not recommended for patients with BMI ≥ 50 kg/m (grade C), current smokers (grade A), or patients with HbA1C ≥ 8.0% (grade B). Patients with BMI= 30-50 kg/m or HbA1C = 6.5-8.0% require individualized interventions to reduce surgical risk (grade C, grade B). Nonoperative management was considered to have a low-risk of short-term morbidity (grade C). Mesh reinforcement was recommended for repair of hernias ≥ 2 cm (grade A). There were several areas where high-quality data were limited, and no consensus could be reached, including mesh type, component separation technique, and management of complex patients.Although there was consensus, supported by grade A-C evidence, on patient selection, the safety of short-term nonoperative management, and mesh reinforcement, among experts; there was limited evidence and broad variability in practice patterns in all other areas of practice. The lack of strong evidence and expert consensus on these topics has identified gaps in knowledge where there is need of further evidence.
- Published
- 2016
39. Practice patterns in high-risk bariatric venous thromboembolism prophylaxis
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Adam Singleton, Howard I. Pryor, Khashayar Vaziri, Elissa Lin, and Paul P. Lin
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medicine.medical_specialty ,Vena Cava Filters ,Partial Pressure ,Population ,Bariatric Surgery ,Morbidly obese ,Perioperative Care ,Body Mass Index ,Postoperative Complications ,Risk Factors ,Internal medicine ,Humans ,Medicine ,cardiovascular diseases ,Enoxaparin ,Practice Patterns, Physicians' ,education ,Intensive care medicine ,education.field_of_study ,Heparin ,Practice patterns ,business.industry ,Anticoagulants ,Venous Thromboembolism ,Hepatology ,equipment and supplies ,Obesity, Morbid ,Oxygen ,Health Care Surveys ,Surgery ,business ,Body mass index ,Venous thromboembolism ,Abdominal surgery - Abstract
In the morbidly obese population that undergoes bariatric surgery, venous thromboembolism (VTE) is the leading cause of morbidity and mortality. Certain factors place a patient at higher risk for VTE. No consensus exists on VTE screening or prophylaxis for the high-risk patient. This report describes the results of a survey on VTE screening and prophylaxis patterns in high-risk bariatric surgery.Members of the Society of American Gastrointestinal and Endoscopic Surgeons (SAGES) were queried on factors that identified bariatric patients as high risk for VTE and on routine screening and prophylaxis practices. This included mechanical and chemical prophylaxis, duration of therapy, and use of inferior vena cava (IVC) filters.Of the 385 surgeons who responded to the survey, 81 % were bariatric surgeons, and the majority managed more than 50 cases annually. One or more of the following risk factors qualified patients as high risk: history of VTE, hypercoagulable status, body mass index (BMI) exceeding 55 kg/m(2), partial pressure of arterial oxygen (PaO(2)) lower than 60 mmHg, and severe immobility. Preoperative screening of patients for VTE was practiced routinely by 56 % of the surgeons, and 92.4 % used preoperative chemoprophylaxis. The most common agent used preoperatively was heparin (48 %), and Lovenox was most commonly used postoperatively (49 %). Whereas 48 % of the patients discontinued chemoprophylaxis at discharge, 43 % continued chemoprophylaxis as outpatients, and 47 % routinely screened for VTE postoperatively. Use of IVC filters was routine for 28 % of the patients, who most commonly removed them after 1-3 months.This study describes current practice patterns of VTE screening and prophylaxis in high-risk bariatric surgery. Nearly all surgeons agree on risk factors that qualify patients as high risk, but only half routinely screen patients preoperatively. Preoperative VTE chemoprophylaxis is used by nearly all surgeons, but the duration of therapy varies. Use of IVC filters is not routine, and postoperative screening was performed by less than half of the respondents. An understanding of current practice patterns yields insight into the rates of VTE and shows variability in the need for evidence-based prophylaxis and standardized screening.
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- 2012
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40. Barriers to Bariatric Surgery: Factors Influencing Progression to Bariatric Surgery
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Suzanne Arnott, Paul P. Lin, Lisbi Rivas, Khashayar Vaziri, Tammy Ju, Samantha N. Olafson, Denise A. Johnstone, Ashlyn E Whitlock, and Andrew D. Sparks
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medicine.medical_specialty ,business.industry ,General surgery ,Medicine ,Surgery ,business - Published
- 2018
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41. Implementation of Standardized Hip-Fracture Care Programs Improve Outcomes
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Babak Sarani, Richard Amdur, Tammy Ju, Khashayar Vaziri, and Lisbi Rivas
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Hip fracture ,medicine.medical_specialty ,business.industry ,medicine ,Physical therapy ,Surgery ,medicine.disease ,business - Published
- 2018
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42. Analysis of poor outcomes after laparoscopic adjustable gastric banding
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Fatima Khambaty, Khashayar Vaziri, Brian Wallace, Fred Brody, Carl Scheffey, Sheldon Mcmullan, and Jason Kasza
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Adult ,Male ,Reoperation ,medicine.medical_specialty ,Sleeve gastrectomy ,Gastroplasty ,medicine.medical_treatment ,Fundoplication ,Comorbidity ,Overweight ,White People ,Body Mass Index ,Postoperative Complications ,Sleep Apnea Syndromes ,Weight loss ,Weight Loss ,Humans ,Medicine ,Prospective Studies ,Treatment Failure ,Adjustable gastric band ,Prospective cohort study ,business.industry ,Hispanic or Latino ,Middle Aged ,Asthma ,Confidence interval ,Surgery ,Black or African American ,Diabetes Mellitus, Type 2 ,Hypertension ,Female ,Laparoscopy ,medicine.symptom ,business ,Body mass index ,Follow-Up Studies ,Abdominal surgery - Abstract
Recent studies document excess weight loss (EWL) of more than 50% with the laparoscopic adjustable gastric band (LGB). This study reviews the LGB experience at an urban academic center in terms of complications, reoperative rates, and comorbidities.In this study, 144 consecutive patients undergoing LGB were prospectively reviewed. Data were collected including weight, body mass index (BMI), excess weight loss (EWL), comorbidities, and complications. Demographics were analyzed using a t-test. Linear regression was used to analyze the relationship of BMI, race, and age to EWL at 12 months.The study participants were 130 women with a mean age of 43 ± 11 years, a mean weight of 127.1 kg ± 20.5 kg, and a mean BMI of 45.6 ± 6.1. The mean follow-up period was 16 months. The mean EWL was 20% ± 14% at 6 months (n = 118), 26% ± 16% at 12 months (n = 106), 30% ± 20% at 18 months (n = 68), and 34% ± 23% at 24 months (n = 43). Patients with a BMI higher than 50 kg/m(2) had a lower EWL at 12 months than patients with a BMI lower than 50 kg/m(2) (P = 0.00005). The mean EWL at 12 months was significantly less for African Americans than for Caucasians (P = 0.0046; 95% confidence interval [CI] 3-15%). Patients older than 50 years had a lower EWL, but the difference was not statistically significant (P = 0.07). Complete and partial resolution of comorbidities occurred for 10% and 4% of the patients, respectively. Removal of the band with revision to a sleeve gastrectomy for inadequate EWL was required for 14 patients (11.5%). Complications occurred for 8% of the patients (n = 15) including port flipping, stoma obstruction, tube disconnection, port infections, dysphagia, and band slippage. Overall, 16.7% of the patients (n = 24) required reoperation.After LGB, a majority of the patients failed to achieve a 50% EWL, and 16.7% required reoperation. Laparoscopic adjustable gastric banding may not be the optimal bariatric procedure for patients older than 50 years, patients with a BMI higher than 50 kg/m(2), or African Americans.
- Published
- 2010
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43. Retrievable inferior vena cava filters in high-risk patients undergoing bariatric surgery
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Eric S. Hungness, Parag Bhanot, Jay B. Prystowsky, Mark D. Morasch, Alexander P. Nagle, and Khashayar Vaziri
- Subjects
Adult ,Male ,medicine.medical_specialty ,Vena Cava Filters ,Bariatric Surgery ,Risk Assessment ,Inferior vena cava ,Body Mass Index ,Postoperative Complications ,Recurrence ,Risk Factors ,Humans ,Medicine ,Prospective Studies ,cardiovascular diseases ,Adjustable gastric band ,Thrombus ,Device Removal ,Ultrasonography ,business.industry ,Venous Thromboembolism ,Perioperative ,Middle Aged ,medicine.disease ,Obesity, Morbid ,Pulmonary embolism ,Surgery ,Radiography ,Venous thrombosis ,Treatment Outcome ,Lower Extremity ,medicine.vein ,Chemoprophylaxis ,Laparoscopy ,Radiology ,Pulmonary Embolism ,business ,Abdominal surgery - Abstract
Placement of retrievable inferior vena cava filters (rIVCF) may be beneficial in high-risk morbidly obese patients undergoing bariatric procedures. Patients with a previous history of venous thromboembolism (VTE) are at high risk for postoperative deep venous thrombosis (DVT) and pulmonary embolism (PE).A prospective database of bariatric surgery patients was studied from April 2003 to May 2007. A total of 791 patients underwent bariatric procedures, of which 30 (4%) had a previous history of VTE. These patients underwent preoperative venous duplex and concurrent placement of a rIVCF. Patient demographics and clinical outcomes were examined.Thirty patients (12 (40%) men) had a mean age of 49 +/- 8 years and a mean body mass index of 50 +/- 8 kg/m(2). Sixteen patients (53%) underwent laparoscopic Roux-en-Y gastric bypass, ten (33%) underwent laparoscopic adjustable gastric band, and four (14%) underwent open Roux-en-Y gastric bypass. Mean operative time, including rIVCF placement, was 162 +/- 66 minutes. All patients had successful rIVCF placement with standard perioperative chemoprophylaxis. Twenty-nine patients (97%) had a follow-up ultrasound on postoperative day (POD) 19 +/- 25. Six patients (21%) had recurrent DVT. Twenty-seven patients (90%) underwent a follow-up venogram, and four patients (15%) had significant thrombus in the rIVCF. Retrieval was successful in 21 patients (70%). Nine patients (30%) did not undergo retrieval: four had significant thrombus in the filter, four had an above-knee DVT, and one due to technical reasons. We observed one complication with a DVT at the access site and no PE or mortality.We observed a 21% incidence of recurrent DVT and 15% incidence of thrombus in the IVCF, yet no PE occurred. IVCF retrieval was successful in 70% with one complication. Concurrent IVCF placement is safe, feasible, and an effective preventative measure in high-risk morbidly obese patients. We recommend the use of rIVCFs in conjunction with standard VTE prophylaxis in this patient population.
- Published
- 2009
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44. Simultaneous laparoscopic type III paraesophageal hernia repair with porcine small intestine submucosa and Roux-en-Y gastric bypass
- Author
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Alexander P. Nagle, Khashayar Vaziri, and Albert Amini
- Subjects
medicine.medical_specialty ,Paraesophageal ,Swine ,medicine.medical_treatment ,Gastric bypass ,Gastric Bypass ,Gastroenterology ,Morbid obesity ,Internal medicine ,medicine ,Animals ,Humans ,Roux-en-y bypass ,Intestinal Mucosa ,business.industry ,Anastomosis, Roux-en-Y ,Middle Aged ,Hernia repair ,Roux-en-Y anastomosis ,Small intestine submucosa ,Obesity, Morbid ,Surgery ,Radiography ,Hernia, Hiatal ,Female ,Laparoscopy ,business - Published
- 2008
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45. Gastric Electrical Stimulation for Gastroparesis
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Esma Akin, Brook Hanna, Elizabeth Drenon, Edy E. Soffer, Khashayar Vaziri, Aamir Ali, Antoinette Saddler, Florencia Gonzalez, and Fred Brody
- Subjects
Adult ,Male ,Gastric electrical stimulation ,medicine.medical_specialty ,Gastroparesis ,Adolescent ,Neurological disorder ,Gastroenterology ,Cohort Studies ,Internal medicine ,Statistical significance ,medicine ,Humans ,Gastric emptying ,business.industry ,Stomach ,Symptom severity ,Middle Aged ,medicine.disease ,Electric Stimulation ,Electrodes, Implanted ,Surgery ,medicine.anatomical_structure ,Cohort ,Female ,Laparoscopy ,business - Abstract
Recently, gastric electrical stimulation (GES) has been used to treat gastroparesis. This study analyzes a cohort of gastroparetic patients after GES.All patients undergoing GES from October 2003 to July 2007 were included. Pre- and postoperative assessments were performed for frequency and severity of gastrointestinal symptoms and gastric retention. The values were compared using a paired t-test for patients at 6 and 12 months. Statistical significance was defined as p0.05.Fifty gastroparetic patients were enrolled (20 diabetic, 25 idiopathic, 2 postsurgical, and 3 connective tissue disorder patients). All patients underwent laparoscopic implantation with GES (Medtronic, Inc). Median followup was 28 months (range 3 to 51 months). Thirty-five patients were available for followup at 6 months, and 30 patients were available at 12 months. The total symptom severity score (19.05+/-8.04) decreased significantly at 6 months (12.92+/-7.41, p0.001) and 12 months (14.05+/-8.28, p0.01). Similarly, total frequency score (20.39+/-8.08) decreased significantly at 6 months (15.01+/-7.37, p0.01) and 12 months (15.71+/-7.40, p0.05). At 12 months (n=27), gastric retention at 2 hours was decreased significantly from 66% +/- 21% to 50% +/- 22% (p0.04) and normalized in 11 of 27 patients. The severity of symptoms was reduced in all patients with normal gastric retention postoperatively. Finally, gastric retention at 4 hours was reduced by 14%, but the difference was not significant.Gastroparetic symptoms at 6 months were improved and sustained at 12 months after GES. Gastric emptying at 2 hours was reduced significantly after GES. Longterm followup of this cohort is required to confirm the short-term effects of GES.
- Published
- 2008
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46. Laparoscopic Heller Myotomy: Technical Aspects and Operative Pitfalls
- Author
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Nathaniel J. Soper and Khashayar Vaziri
- Subjects
Male ,Motor disorder ,Laparoscopic surgery ,medicine.medical_specialty ,medicine.medical_treatment ,Achalasia ,Risk Assessment ,Sensitivity and Specificity ,Postoperative Complications ,otorhinolaryngologic diseases ,medicine ,Humans ,Esophagus ,Heller myotomy ,business.industry ,General surgery ,Palliative Care ,Esophagoscopes ,Gastroenterology ,Follow up studies ,Muscle, Smooth ,medicine.disease ,Esophageal Achalasia ,Treatment Outcome ,medicine.anatomical_structure ,Quality of Life ,Esophageal sphincter ,Female ,Laparoscopy ,Surgery ,Esophagoscopy ,business ,Follow-Up Studies ,Laparoscopic Heller Myotomy - Abstract
Achalasia is a rare motor disorder of the esophagus characterized by aperistalsis and impaired relaxation of the lower esophageal sphincter (LES). The etiology of this disease remains unknown. The current treatment is palliative and relies upon surgical disruption of the fibers of the LES. The technical aspects and operative pitfalls of laparoscopic Heller myotomy are described in this article.
- Published
- 2008
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47. Outcomes of Prolonged Laparoscopic Bariatric Operations Compared With Shorter Open Procedures
- Author
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Sara L. Zettervall, Khashayar Vaziri, and Richard Amdur
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Adult ,Male ,medicine.medical_specialty ,medicine.diagnostic_test ,business.industry ,General surgery ,Patient demographics ,Treatment outcome ,Operative Time ,Bariatric Surgery ,Retrospective cohort study ,United States ,Surgery ,Obesity, Morbid ,Treatment Outcome ,medicine ,Operative time ,Humans ,Female ,Laparoscopy ,business ,Retrospective Studies - Abstract
PURPOSE Prolonged operative time (ORT) is a drawback of laparoscopic bariatric surgery due to concerns for increased morbidity. This study aims to identify the ORT when open procedures are superior to laparoscopic procedures. METHODS Thirty-day outcomes for bariatric procedures in the NSQIP database were analyzed comparing laparoscopic ORT to equal or shorter open ORT. Multivariate regression was utilized to control for patient demographics and comorbidities. RESULTS Among 48,274 cases, laparoscopic procedures reduced morbidity and mortality compared with open procedures of similar ORT. Laparoscopic procedures ≤3 hours were equal or superior to shorter open procedures. Laparoscopic procedures >6 hours had worse outcomes than open operations 3 hours had no benefit regardless of ORT. CONCLUSIONS Laparoscopic bariatric operations have less mortality and morbidity compared with open procedures of similar ORT. The advantages of laparoscopic procedures are eliminated when ORT exceeds 6 hours compared with shorter open procedures.
- Published
- 2015
48. Estimated Height, Weight, and Body Mass Index: Implications for Research and Patient Safety
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Kimberly M. Hendershot, Samir M. Fakhry, Jason C. Roland, Khashayar Vaziri, Anne G. Rizzo, and Linda Robinson
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medicine.medical_specialty ,Poison control ,Nursing Staff, Hospital ,Overweight ,Patient care ,Body Mass Index ,Patient safety ,Body Image ,Medical Staff, Hospital ,medicine ,Humans ,Obesity ,Medical History Taking ,business.industry ,Body Weight ,Trauma center ,medicine.disease ,Body Height ,Surgery ,Physical therapy ,Research studies ,medicine.symptom ,Emergency Service, Hospital ,business ,Body mass index - Abstract
BACKGROUND: Research suggests that weight influences patient care and outcomes. Health-care providers (HCPs) sometimes rely on patient self-reports or HCP estimates of height and weight. The purpose of this study was to determine the accuracy of self-reported height and weight and HCP estimations of height, weight, and body mass index (BMI) classification when compared with measured height, weight, and calculated BMI. STUDY DESIGN: Attending physicians, residents, and nurses provided height and weight estimates along with BMI categorizations for 110 trauma patients at a large, teaching hospital with a Level I trauma center. Patients provided reports of their heights and weights. Measured heights and weights were obtained with appropriate calibrated devices, and BMIs were calculated. Estimates and categorizations were then compared with measured and calculated values. RESULTS: HCPs were 41% and 53% accurate in estimating height and weight, respectively. Self-reports had higher accuracy (69% and 92%, respectively) but still resulted in a BMI misclassification of 32%. Twenty-two percent of patient self-reports were unobtainable. When HCPs attempted to categorize a patient into a BMI group, the accuracy was 56%. Functioning, calibrated instruments for measuring height and weight were frequently unavailable in relevant hospital locations. CONCLUSIONS: This study demonstrated that HCPs' estimates of height, weight, and BMI category are highly inaccurate. Patient self-reports are better, but are unavailable at times. Objective measurements with calibrated instruments are necessary for accuracy in research studies and for patient safety in clinical practice. Efforts to ensure the availability of calibrated instruments may be necessary in the hospital setting.
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- 2006
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49. Pancreaticojejunostomy by Duct to Mucosa and Invagination Techniques Result in Similar Mortality and Pancreatic Fistula Rates
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Paul P. Lin, Sara L. Zettervall, Lisbi Rivas, Khashayar Vaziri, Jeremy L. Holzmacher, and Samantha N. Olafson
- Subjects
medicine.medical_specialty ,medicine.anatomical_structure ,Pancreatic fistula ,business.industry ,medicine ,Invagination ,Surgery ,Anatomy ,medicine.disease ,business ,Duct (anatomy) - Published
- 2017
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50. Incorporating NSQIP into Surgical Morbidity and Mortality Conference Promotes an Environment of Education, Transparency, and Accountability
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Stanley Knoll, Lauri Buckley, Khashayar Vaziri, Sara L. Zettervall, Neerav Patel, R. Luke Rettig, and Kendal M. Endicott
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medicine.medical_specialty ,business.industry ,Accountability ,medicine ,Surgery ,Accounting ,business ,Transparency (behavior) ,Surgical morbidity - Published
- 2017
- Full Text
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