171 results on '"David W. Low"'
Search Results
2. 4. Speech Outcomes at Facial Maturity and Secondary Speech Surgery Rates Following Modified Furlow Palatoplasty
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Connor S. Wagner, BS, Carlos E. Barrero, BS, Zachary D. Valenzuela, BS, Lauren K. Salinero, BS, Matthew E. Pontell, MD, Susan M. McCormack, MA CCC-SLP, Cynthia Solot, MA CCC-SLP, Marilyn Cohen, BA LSLP, Richard E. Kirschner, MD, David W. Low, MD, and Oksana Jackson, MD
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Surgery ,RD1-811 - Published
- 2023
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3. 8. LONGITUDINAL OUTCOMES IN MIDFACIAL GROWTH AND SPEECH FOLLOWING FURLOW DOUBLE-OPPOSING Z-PALATOPLASTY: A 30-YEAR RETROSPECTIVE
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Sameer Shakir, MD, Mychajlo Kosyk, BA, Michelle Scott, DDS, MBA, Hyun-Duck Nah-Cederquist, DMD, MSD, PhD, Marilyn Cohen, SLP, Jesse A. Taylor, MD, Scott P. Bartlett, MD, Oksana H. Jackson, MD, David W. Low, MD, and Jordan W. Swanson, MD, MSc
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Surgery ,RD1-811 - Published
- 2022
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4. Cleft-Q Integration at a Multidisciplinary Cleft Lip and Palate Clinic: A Prospective Study Evaluating Clinical Decision Making
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Dillan Villavisanis, Liana Cheung, MBBS, Daria Ferro, Jessica D. Blum, Daniel Y. Cho, MD, PhD, Oksana Jackson, MD, David W. Low, MD, Scott Paul Bartlett, MD, Jesse A. Taylor, MD, and Jordan W. Swanson, MD, MSc
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Surgery ,RD1-811 - Published
- 2022
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5. P74. A HIP WAY TO RECONSTRUCT NOSES: OUTCOMES WITH ILIAC CREST CAP CARTILAGE GRAFTS IN INTERMEDIATE CLEFT RHINOPLASTY
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Liana Cheung, MBBS, Jessica D. Blum, BA, MSc, Dillan F. Villavisanis, BA, Daniel Y. Cho, MD, PhD, Jordan W Swanson, MD MSc, Scott P. Bartlett, MD, Jesse A. Taylor, MD, and David W. Low, MD
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Surgery ,RD1-811 - Published
- 2022
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6. P66. CLEFT RHINOPLASTY OPERATIVE TRENDS FROM 959 CASES IN A SINGLE INSTITUTION
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Liana Cheung, MBBS, Jinggang Ng, BA, MA, Dillan F. Villavisanis, BA, Jessica D. Blum, BA, MSc, Daniel Y. Cho, MD, PhD, Oksana Jackson, MD, David W. Low, MD, Jordan W. Swanson, MD, MSc, Scott P. Bartlett, MD, and Jesse A. Taylor, MD
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Surgery ,RD1-811 - Published
- 2022
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7. Spinal pseudomeningocele closure: capsulofascial interposition technique
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Jinggang J. Ng, Jessica D. Blum, Daniel Y. Cho, Liana Cheung, Dominic J. Romeo, David W. Low, Jesse A. Taylor, Gregory G. Heuer, Jordan W. Swanson, and Tracy M. Flanders
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Pediatrics, Perinatology and Child Health ,Neurology (clinical) ,General Medicine - Published
- 2023
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8. A Longitudinal Study of Improvement in Nasal Airway Obstruction after Secondary Cleft Rhinoplasty
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Anna R. Carlson, Mychajlo S. Kosyk, Zachary D. Zapatero, Christopher L. Kalmar, Jordan W. Swanson, Oksana A. Jackson, David W. Low, Scott P. Bartlett, and Jesse A. Taylor
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Surgery - Published
- 2022
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9. Bilateral Buccal Flap Revision Palatoplasty to Correct Velopharyngeal Dysfunction in Patients with Repaired Cleft Palate: Perceptual Speech, Acoustic, and Aerodynamic Outcomes
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Joseph A. Napoli, Christopher L. Kalmar, David W. Low, James Buckley, H. Timothy Bunnell, and Linda D. Vallino
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Surgery - Published
- 2023
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10. The mononuclear phagocyte system obscures the accurate diagnosis of infected joint replacements
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Robert Manasherob, Shay I. Warren, Prerna Arora, Lyong Heo, Naomi L. Haddock, Ievgen Koliesnik, Diasuke Furukawa, Z. Ngalo Otieno-Ayayo, William J. Maloney, David W. Lowenberg, Stuart B. Goodman, and Derek F. Amanatullah
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Medicine - Abstract
Abstract Introduction Diagnosing infected joint replacements relies heavily on assessing the neutrophil response to bacteria. Bacteria form biofilms on joint replacements. Biofilms are sessile bacterial communities encased in a protective extracellular matrix, making them notoriously difficult to culture, remarkably tolerant to antibiotics, and able to evade phagocytosis. Phagocytized bacteria dramatically alter cytokine production and compromise macrophage antigen presentation. We hypothesize that a subset of joint replacements have a dormant infection that suppresses the neutrophil response to bacteria but can be distinguished from uninfected joint replacements by the response of the mononuclear phagocyte system (MPS) within periarticular tissue, synovial fluid, and circulating plasma. Methods Single cell RNASeq transcriptomic and OLink proteomic profiling was performed on matched whole blood, synovial fluid, and periarticular tissue samples collected from 4 joint replacements with an active infection and 3 joint replacements without infection as well as 6 joint replacements with a prior infection deemed “infection-free” by the 2018 Musculoskeletal Infection Society criteria (follow-up of 26 ± 3 months). Results The MPS and neutrophil responses differ by infected state; the cellular distribution of the MPS response in the subset of joints with dormant infections resembled actively infected joints (p = 0.843, Chi-square test) but was significantly different from uninfected joints (p
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- 2024
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11. Poverty and Risk of Cleft Lip and Palate: An Analysis of United States Birth Data
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Giap H. Vu, Clara Warden, Carrie E. Zimmerman, Christopher L. Kalmar, Laura S. Humphries, Donna M. McDonald-McGinn, Oksana A. Jackson, David W. Low, Jesse A. Taylor, and Jordan W. Swanson
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Adult ,Male ,Cleft Lip ,Infant, Newborn ,United States ,Cleft Palate ,Social Class ,Risk Factors ,Birth Certificates ,Humans ,Female ,Surgery ,Poverty ,Follow-Up Studies ,Retrospective Studies - Abstract
The relationship between poverty and incidence of cleft lip and cleft palate remains unclear. The authors investigated the association between socioeconomic status and cleft lip with or without cleft palate and cleft palate only in the United States after controlling for demographic and environmental risk factors.The U.S. 2016 and 2017 natality data were utilized. Proxies for socioeconomic status included maternal education, use of the Special Supplemental Nutrition Program for Women, Infants, and Children, and payment source for delivery. Multiple logistic regression controlled for household demographics, prenatal care, maternal health, and infant characteristics.Of 6,251,308 live births included, 2984 (0.05 percent) had cleft lip with or without cleft palate and 1180 (0.02 percent) had cleft palate only. Maternal education of bachelor's degree or higher was protective against, and delayed prenatal care associated with, cleft lip with or without cleft palate (adjusted ORs = 0.73 and 1.14 to 1.23, respectively; p0.02). Receiving assistance under the Special Supplemental Nutrition Program for Women, Infants, and Children was associated with cleft palate only (adjusted OR = 1.25; p = 0.003). Male sex, first-trimester tobacco smoking, and maternal gestational diabetes were also associated with cleft lip with or without cleft palate (adjusted ORs = 1.60, 1.01, and 1.19, respectively; p0.05). Female sex, prepregnancy tobacco smoking, and maternal infections during pregnancy were associated with cleft palate only (adjusted ORs = 0.74, 1.02, and 1.60, respectively; p0.05).Increased incidence of orofacial clefts was associated with indicators of lower socioeconomic status, with different indicators associated with different cleft phenotypes. Notably, early prenatal care was protective against the development of cleft lip with or without cleft palate.Risk, III.
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- 2021
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12. Anterior Supraclavicular Artery Perforator Flap for Large Pediatric Congenital Facial Lesions
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Christopher L. Kalmar, Oksana A. Jackson, and David W. Low
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Face ,Humans ,Surgery ,Arteries ,Plastic Surgery Procedures ,Child ,Perforator Flap - Published
- 2022
13. Impact of Illustrated Postoperative Instructions on Knowledge and Retention During a Cleft Lip and Palate Surgical Mission
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Elizabeth B. Card, Carrie E. Morales, Juan M. Ramirez, Marce Billingslea, Ariel Marroquín, Eo Trueblood, Luv R. Javia, Susan M. McCormack, Leonard R. Friedland, David W. Low, Alan Jay Schwartz, Michelle Scott, and Oksana A. Jackson
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Otorhinolaryngology ,Oral Surgery - Abstract
Objective To determine the impact of illustrated postoperative instructions on patient-caregiver knowledge and retention. Design Prospective study with all participants receiving an educational intervention. Setting Pediatric plastic surgical missions in Guatemala City, Guatemala, between 2019 and 2020. Participants A total of 63 majority-indigenous Guatemalan caregivers of patients receiving cleft lip and/or palate surgery. Intervention Illustrated culturally appropriate postoperative care instructions were iteratively developed and given to caregivers who were surveyed on illustration-based and text-based information at preoperative, postoperative, and four-week follow-up time points. Main Outcome Measure Postoperative care knowledge of illustration-based versus text-based information as determined by the ability to answer 11 illustration- and 8 text-based all-or-nothing questions, as well as retention of knowledge as determined by the same survey given at four weeks follow-up. Results Scores for illustration-based and text-based information both significantly increased after caregivers received the postoperative instructions (+13.30 ± 3.78 % SE, + 11.26 ± 4.81 % SE; P .05), but significantly lower for text-based information (−28.46 ± 6.09 % SE, P Conclusions In the setting of language and cultural barriers on a surgical mission, understanding of illustration-based and text-based information both increased after verbal explanation of illustrated postoperative instructions. Illustration-based information was more likely to be retained by patient caregivers after four weeks than text-based information, the latter of which correlated with increased education and literacy.
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- 2022
14. Trends in insurance coverage for adolescent reduction mammaplasty
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Rotem Kimia, Leanne Magee, Howard S. Caplan, David W. Low, Oksana A. Jackson, and Paris D. Butler
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Adult ,Adolescent ,Mammaplasty ,Humans ,Surgery ,Female ,General Medicine ,Breast ,Hypertrophy ,Child ,Insurance Coverage ,Retrospective Studies - Abstract
Reduction mammaplasty is an effective intervention for symptomatic macromastia. Studies of insurance policy criteria for adult patients have demonstrated nonuniformity. This study assesses trends in insurance preauthorization for reduction mammaplasty in the adolescent population.A retrospective cohort study of patients aged ≤18 years at a pediatric breast clinic between January 1, 2010 and December 31, 2020. Demographic information and clinical variables submitted to insurers were analyzed, as well as third-party payer company, provider network type, and preauthorization criteria.249 preauthorization requests were studied, with an approval rate of 79.5%. Submissions increased from 6 in 2010 to 59 in 2020. Variables deemed significantly associated with preauthorization denial included submission before 2015 (OR 2.04, 95% CI 1.04-3.95, p = .038), billing zip code median income$60,000 (OR 2.11, 95% CI 1.12-3.98 p = .02), predicted resection mass below Schnur Sliding Scale threshold (OR 1.97, 95% CI 1.01-3.83 p = .047), and insurance company.Insurance criteria for preauthorization of reduction mammaplasty in adolescents differ from adults, are not supported by clinical studies, and may exclude low-income patients from receiving care.
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- 2022
15. Radiologic Evaluation of the Influence of Cleft Treatment on Nasal Dorsum Growth
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Lingling Pu, David W. Low, Bing Shi, Chenghao Li, and Ren-kai Liu
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Adolescent ,Cephalometry ,Cleft Lip ,Nose ,03 medical and health sciences ,0302 clinical medicine ,Radiologic Evaluation ,Humans ,Cleft nose ,Medicine ,Child ,030223 otorhinolaryngology ,Retrospective Studies ,Nasal deformity ,Orthodontics ,business.industry ,030206 dentistry ,Rhinoplasty ,Cleft Palate ,stomatognathic diseases ,Treatment Outcome ,Otorhinolaryngology ,Child, Preschool ,Nasal dorsum ,Oral Surgery ,business - Abstract
Objective: The study addresses whether the growth of the nasal dorsum is disturbed by cleft treatments, for cleft lip only (CL) and cleft lip with cleft palate (CLP). Design: A total of 576 patients with cleft (278 CL, 298 CLP) and 333 individuals without orofacial clefts were retrospectively enrolled. Cleft lip only group was treated with a modified Millard technique combined with Tajima incision for rhinoplasty at 3 to 6 months. The CLP group underwent the same lip repair technique and then underwent a Sommerlad palatoplasty at 9 to 12 months. Lateral cephalometric radiographs of all individuals were taken to evaluate the nasal length and nasal dorsum height. Dunn test was used to analyze the difference ( P < .001). Results: Compared with control, in CL, nasal bone angle and nasal dorsum angle increase by age similarly (5-18 years, P > .05); the total dorsum is significantly shorter (5-18 years, P < .001), while the upper nasal dorsum length is similar (except in 5-6 years), and the lower nasal dorsum is shorter (5-18 years, P < .001). In CLP, nasal bone angle develops insufficiently as children grow (8-18 years, P < .001); the nasal dorsum angle is notably smaller (5-18 years, P < .001); nasal bone length is not significantly different except 11 to 13 years ( P < .05); nasal dorsal length is similar at skeletal maturity (17-18 years, P > .05), although it is shorter during 8 to 16 years ( P < .05); the upper nasal dorsum is overdeveloped (14-18 years, P < .05), whereas the lower nasal dorsum is underdeveloped (5-18 years, P < .001). Conclusion: Treatments in both CL and CLP could be the important factors in disturbing the growth of cartilaginous portion of the nasal dorsum (including nasal tip) and the nasal dorsum height.
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- 2020
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16. Segmental congenital hemangiomas: Three cases of a rare entity
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James R. Treat, Anne Marie Cahill, Matthew A. Deardorff, Dolores Lopez-Terrada, Thuy L. Phung, Ionela Iacobas, Denise W. Metry, David W. Low, Robert J. Smith, Jenna Steicher, Katheryn Grand, Adam I. Rubin, and Elizabeth Heller
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Pathology ,medicine.medical_specialty ,GNA11 ,medicine.diagnostic_test ,business.industry ,Dermatology ,030207 dermatology & venereal diseases ,03 medical and health sciences ,0302 clinical medicine ,In utero ,030220 oncology & carcinogenesis ,Pediatrics, Perinatology and Child Health ,Mutation (genetic algorithm) ,medicine ,Involution (medicine) ,Congenital Hemangioma ,business ,Heterotaxy ,GNAQ ,Genetic testing - Abstract
Congenital hemangiomas (CHs) are unusual and diverse tumors distinguished from infantile hemangiomas by being largely developed at birth and glucose transporter (GLUT1)-negative. We describe three infants who presented in utero or at birth with segmentally distributed vascular tumors that were GLUT1-negative, had histology compatible with congenital hemangioma, and exhibited spontaneous clinical involution. One of the three patients had high-output cardiac failure and was found to have a mutation in GNAQ (c.626A>c, p.Gln209Pro); another had high-output cardiac failure, heterotaxy, and transient hematologic abnormalities and was found to have a mutation in GNA11 (c.626_627delinsCC, p.Gln209Pro). In addition to describing a novel segmental pattern of congenital hemangioma variant with genetic correlations, these cases illustrate the utility of targeted genetic testing to elucidate the exact mutation and thus classification of vascular tumors.
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- 2020
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17. Subclavian to carotid artery bypass for a case of ocular ischemic syndrome
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Babak S Sadri, David W Low, Oksana A Jackson, Benjamin M Jackson, and Nathan Belkin
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Radiology, Nuclear Medicine and imaging ,Surgery ,General Medicine ,Cardiology and Cardiovascular Medicine - Abstract
Background Ocular Ischemic Syndrome (OIS) is a rare, vision threatening condition associated with severe carotid artery disease. There are few cases of OIS reported in the literature. Methods We present the case of a 54-year-old male with history of multiple previous carotid interventions including a right carotid stent, who presented with right-sided OIS. Results CTA and angiogram showed a severe calcific plaque causing restenosis of the right carotid stent, with a patent right internal carotid artery (ICA) in the very distal neck. The right common carotid artery (CCA) was patent but diseased with ulcerated plaque extending proximally to below the level of the clavicle. The left CCA was chronically occluded from its origin all the way to the bifurcation. Given our patient’s surgical history, the imperative to revascularize the ipsilateral carotid, and a diffusely diseased ipsilateral CCA, he was successfully treated with an ipsilateral subclavian to internal carotid bypass. Conclusion There is paucity of data regarding the best approach for carotid revascularization in OIS. This case report discusses our unique perioperative decision making as well as relevant literature.
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- 2023
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18. Speech Outcomes Following Operative Management of Velopharyngeal Dysfunction (VPD) in Non-Syndromic Post-Palatoplasty Cleft Palate Patients
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Rotem Kimia, Cynthia B. Solot, Susan M. McCormack, Marilyn Cohen, Jessica D. Blum, Dillan F. Villavisanis, Nisha Vora, Zachary Valenzuela, Jesse A. Taylor, David W. Low, and Oksana A. Jackson
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Otorhinolaryngology ,Oral Surgery - Abstract
Objective Approximately 30% of patients with a history of repaired cleft palate (CP) go on to suffer from velopharyngeal dysfunction (VPD). This study discusses the operative management of VPD and postoperative speech outcomes in a cohort of CP patients. Setting An academic tertiary pediatric care center. Methods Retrospective cohort study. Patients Patients with history of repaired CP (Veau I-IV) who underwent operative management of VPD between January 1st, 2010 and December 31st, 2020. Operative modalities were posterior pharyngeal flap (PPF), sphincter pharyngoplasty (SPP), Furlow palate re-repair, and buccal myomucosal flap palate lengthening (PL). Outcome measures The primary outcome measure is postoperative speech improvement evaluated by the Pittsburgh Weighted Speech Scale (PWSS). Results 97 patients met inclusion criteria. 38 patients with previous straight-line primary palatoplasty underwent Furlow re-repair; these patients were significantly younger (7.62 vs 11.14, P Conclusion Furlow re-repair reduced need for additional VPD operations. Speech outcomes between non-revisional operations are comparable, but increased complications were seen in SPP.
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- 2023
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19. Hemangiomas and Vascular Malformations
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David W. Low and Oksana A. Jackson
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- 2022
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20. Visual Resources for Postoperative Care to Overcome Language and Cultural Barriers
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Carrie E. Zimmerman, Eo Trueblood, Elizabeth B. Card, David W. Low, Oksana Jackson, Leonard R. Friedland, Alan Jay Schwartz, Christopher L. Kalmar, and Juan M. Ramirez
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Adult ,Postoperative Care ,Audiovisual Aids ,business.industry ,Communication ,Medical Missions ,Plastic Surgery Procedures ,Guatemala ,Nursing ,Cultural barriers ,Caregivers ,Patient Education as Topic ,Medicine ,Humans ,Surgery ,Cultural Competency ,business ,Child ,Indigenous Peoples ,Language - Published
- 2021
21. Perioperative Outcome Differences Between Pain Management Protocols in Cleft Alveolar Bone Grafting
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Oksana Jackson, Robin Yang, David W. Low, Jesse A. Taylor, Kaitlyn M. Paine, and Viren Patel
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Male ,medicine.drug_class ,Subgroup analysis ,Iliac crest ,03 medical and health sciences ,symbols.namesake ,0302 clinical medicine ,Humans ,Pain Management ,Medicine ,Child ,030223 otorhinolaryngology ,Fisher's exact test ,Retrospective Studies ,Pain, Postoperative ,Bone Transplantation ,Morphine ,Alveolar Bone Grafting ,business.industry ,Local anesthetic ,Retrospective cohort study ,030206 dentistry ,General Medicine ,Perioperative ,Cleft Palate ,Treatment Outcome ,medicine.anatomical_structure ,Otorhinolaryngology ,Child, Preschool ,Anesthesia ,symbols ,Female ,Surgery ,Analysis of variance ,business ,medicine.drug - Abstract
Purpose Postoperative hip pain is commonly reported after anterior iliac crest harvest for alveolar bone grafting. The goal of this study is to describe our institution's experience and examine the efficacy of our pain management protocols. Methods A retrospective review was performed by abstracting demographic, operative, and pain management data from January 2011 to April 2013. Paired t-tests and Fisher exact tests were used to examine differences when comparing 2 groups, while ANOVA was used to examine difference between the 3 protocols for harvest and pain management: trapdoor technique and local anesthetic injection (TD+LAI), TD and pain catheter (TD+PC), and split crest and LAI. Results Eighty-four patients, 52 males (61.9%), averaging 8.8 years old (±2.9) were included. Postoperatively, 17 (71%) patients in the PC group received IV narcotics compared to 27 (45%) in those without a PC (P = .03). When comparing all 3 protocols, no significant difference was found in IV morphine usage or duration of IV morphine treatment. In subgroup analysis, when patients in the groups TD+PC versus TD+LAI were examined, those in the TD+PC group had significantly shorter hospital stays and were more likely to go home postoperative day 1 (P = .03; P = .04). Conclusions Overall, patients tolerated alveolar bone grafting well regardless of harvest technique or pain management approach. While indwelling PCs did not significantly decrease IV morphine usage, these patients had significantly shorter lengths of stays.
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- 2020
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22. Perforator navigation using color Doppler ultrasound and three-dimensional reconstruction for preoperative planning of optimal lateral circumflex femoral artery system perforator flaps in head and neck reconstruction
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David W. Low, Hui-hong Zhou, Yi Shen, Jun Li, Jian Sun, and Lin-guo Lu
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Male ,medicine.medical_specialty ,Dissection (medical) ,030230 surgery ,Neck Injuries ,03 medical and health sciences ,Imaging, Three-Dimensional ,Postoperative Complications ,0302 clinical medicine ,medicine.artery ,Outcome Assessment, Health Care ,Preoperative Care ,medicine ,Craniocerebral Trauma ,Humans ,Flap survival ,Ultrasonography, Doppler, Color ,Head and neck ,Preoperative planning ,business.industry ,Color doppler ultrasound ,Middle Aged ,Plastic Surgery Procedures ,medicine.disease ,Lateral circumflex femoral artery ,Surgery ,Femoral Artery ,Head and Neck Neoplasms ,Caliber ,030220 oncology & carcinogenesis ,Female ,business ,Perforator Flap ,Perforator flaps - Abstract
Summary Background The authors introduce an algorithm for preoperative planning of optimal lateral circumflex femoral artery system perforator flap (LCFAPF) supplied by the best quality and the easiest dissection of the perforators and the source vessels for simplified and customized strategies in head and neck reconstruction with perforator navigation using color Doppler ultrasound and three-dimensional reconstruction (3D-CDUS PN). Methods Between June 2011 and September 2015, a prospective cohort study was performed with an algorithm based on defect site, perforator type, and pedicle length using 3D-CDUS PN to select optimal perforators arising from the different branches of LCFA in 108 patients. The optimal perforator and flap were determined by perforator caliber and quality, difficulty in flap dissection, and length of the source vessels. Cause and classification of the defect, flap choice, recipient vessels, postoperative course, and complications were analyzed. Results The source vessels of the perforators were lateral descending branch in 73 cases and oblique branch in 17 cases with ALTPFs, medial descending branch in 12 cases with AMTPFs, and ascending branch in 6 cases with TFLPFs. Straightforward dissection of flaps with septocutaneous (n = 40) and semi-septocutaneous (n = 17) perforators was performed in 52.8% cases. Successful exploration rate and overall flap survival rate were both 100%. Satisfactory functional and esthetic results in both recipient and donor sites with no serious complications were observed in all patients. Conclusions Our algorithm using 3D-CDUS PN facilitates selection of optimal flap with better caliber and quality of the perforators and sufficient pedicle length for easy dissection.
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- 2019
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23. Sternal wound complications in patients undergoing orthotopic heart transplantation
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Maria Molina, Charlie Vasquez, Prashanth Vallabhajosyula, Mary Siki, Matthew Kramer, Michael A. Acker, Suhail K. Kanchwala, Andreas Habertheuer, Tyler J. Wallen, David W. Low, Jean Paul Gottret, Zara Abbas, and Reilly D. Hobbs
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Adult ,Male ,Reoperation ,Pulmonary and Respiratory Medicine ,Sternum ,medicine.medical_specialty ,medicine.medical_treatment ,030204 cardiovascular system & hematology ,Surgical Flaps ,03 medical and health sciences ,Postoperative Complications ,0302 clinical medicine ,Risk Factors ,Gram-Negative Bacteria ,medicine ,Humans ,Surgical Wound Infection ,Myocardial infarction ,Stroke ,Dialysis ,Aged ,Retrospective Studies ,Heart transplantation ,COPD ,Virulence ,business.industry ,Perioperative ,Middle Aged ,medicine.disease ,Sternotomy ,Anti-Bacterial Agents ,Cardiac surgery ,Surgery ,Early Diagnosis ,Debridement ,030228 respiratory system ,Median sternotomy ,Heart Transplantation ,Female ,Cardiology and Cardiovascular Medicine ,business - Abstract
PURPOSE The incidence and management of sternal wound complications in patients undergoing orthotopic heart transplantation (OHT) is not well studied. We report outcomes in heart transplant patients who developed sternal infections requiring reoperations. METHODS From 2004 to 2013, 437 patients underwent OHT at a single institution. In a retrospective review, patients who developed sternal infections (Infection group, n = 27) were compared with those without (Control group, n = 410). RESULTS Sternal infection rate was 6.2% (n = 27). Demographics were similar (Table 1). Infection group had higher rates of COPD 25% vs 13%, P = 0.03, and previous cardiac surgery via median sternotomy 28% vs 15%, P = 0.03. Infection group had a greater incidence of prolonged ventilation, 44% vs 31%, P = 0.2, renal failure 56% vs 24%, P = 0.001, dialysis requirement 30% vs 10%, P = 0.006, permanent stroke 11% vs 2%, P = 0.02, perioperative myocardial infarction 4% vs 0.2%, P = 0.09. The infection group had a longer ICU stay (524 + 410 vs 187 + 355 hours, P = 0.001) and hospitalization (59 + 28 vs 0.29 + 43 days, P = 0.001). In-hospital/30-day mortality was 30% vs 19%, P = 0.2. The mean time for sternal reoperation at 44 + 50 days. Deep wound infection (41%) and sternal dehiscence (22%) were common presentations. Causative organisms were Enterobacter (22%), Klebsiella (15%), and Pseudomonas (15%). Vancomycin (44%), 4th generation cephalosporin (37%), and fluoroquinolones (30%) were the most commonly used antibiotics. Surgical treatment included sternal debridement with pectoralis muscle flap (52%), primary closure (18%), and omental flap (11%). CONCLUSION Sternal wound infections impart a significant burden on patients with OHT. Causative organisms are predominantly virulent gram-negative bacteria. Therefore, a high index of suspicion must be maintained for early detection and treatment.
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- 2019
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24. Balloon occlusion as an adjunctive technique during sclerotherapy of Puig's classified advanced venous malformations
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Sphoorti Shellikeri, Robert W. Hurst, David W Low, Anne Marie Cahill, Abhay Srinivasan, Srirajkumar Ranganathan, Sri Hari Sundararajan, and Bryan Pukenas
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medicine.medical_specialty ,Vascular Malformations ,medicine.medical_treatment ,030204 cardiovascular system & hematology ,030218 nuclear medicine & medical imaging ,03 medical and health sciences ,0302 clinical medicine ,Sclerotherapy ,medicine ,Humans ,Retrospective Studies ,medicine.diagnostic_test ,business.industry ,Interventional radiology ,General Medicine ,Balloon Occlusion ,medicine.disease ,Sclerosing Solutions ,Treatment Outcome ,Balloon occlusion ,Quality of Life ,Radiology ,Cardiology and Cardiovascular Medicine ,business ,Venous malformation - Abstract
Objective Puig types 2 through 4 venous malformations (VMs) are challenging to treat with sclerotherapy given their robust systemic outflow. Endovenous balloon occlusion offers a means of temporarily occluding systemic venous outflow to allow for more complete sclerotherapy. This study reviews our experience of implementing this technique in patients with Puig advanced (types 2 through 4) VMs. Methods An IRB approved review of treated venous malformations from 2013–2016 revealed 10 patients fitting inclusion criteria. Patient demographics, pre-procedural imaging, intra-procedural technical parameters, and post-procedural follow-up outcomes were recorded. All patients underwent temporary balloon occlusion of a systemic or major draining vein during sclerotherapy. Embolic agents included n-butyl cyanoacrylate glue, sodium tetradecyl sulfate foam, and coils. Standard 5 French angioplasty balloons ranged from 4 to 8 mm diameter and 2 to 8 cm length depending on vessel requiring occlusion. All patients underwent minimum 3-year follow-up questionnaire administration re-assessing resolution of lesion symptomology and post-procedural quality of life (QoL) measures. Results Of the 10 VMs treated, 2 were Type 2, 6 were Type 3, and 2 were Type 4. More than one sclerotherapy session was required in 7/10 patients (mean: 2, range: 1–4). Most common sites of VM systemic drainage included subclavian, popliteal, internal/external jugular, and basilic veins. All patients had no indication for further sclerotherapy following adjunctive balloon occlusion. No non-target embolization or immediate post-procedural complications occurred. Follow-up questionnaires (mean interval: 3 years 6 months, range: 3 years–3 years 11 months) confirmed the persistence of embolization effects, improved QoL, and no additional sclerotherapy sessions for all patients in the cohort. Conclusions Endovenous balloon occlusion as an adjunct to sclerotherapy can be considered when treating patients with types 2–4 venous malformations. This technique lowers the risk of non-target systemic venous embolization, allowing for operator-driven deeper intralesional sclerosant penetration and subsequently maintained treatment efficacy.
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- 2021
25. Interdisciplinary Cleft Care: Global Perspectives
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Usama S. Hamdan, Carolyn R. Rogers-Vizena, Raj M. Vyas, Brian C. Sommerlad, David W. Low, Usama S. Hamdan, Carolyn R. Rogers-Vizena, Raj M. Vyas, Brian C. Sommerlad, and David W. Low
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- Jaws--Surgery, Cleft lip--Surgery
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Interdisciplinary Cleft Care: Global Perspectives draws from the rich national and international relationships between the Global Smile Foundation and world experts in cleft care to provide comprehensive, clear, and user-friendly content for all cleft care professionals. This text is designed to be an inclusive resource that addresses the educational needs of all cleft care providers, from novice learners looking to develop their area's first multidisciplinary cleft team to seasoned specialists looking to improve their outcomes.v
- Published
- 2023
26. Alveolar Bone Graft
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Jordan W. Swanson, David W. Low, Armando Siu, and Allan Porras
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medicine.anatomical_structure ,business.industry ,Dental eruption ,medicine ,Dentistry ,business ,Iliac crest ,Alveolar bone graft - Published
- 2021
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27. A Novel Approach in the Surgical Management of Nasal Tip Hemangiomas: A 26-Year Experience
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Phuong D Nguyen, David W Low, Oksana A. Jackson, and Takintope Akinbiyi
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Male ,medicine.medical_specialty ,Esthetics ,Nose Neoplasms ,030230 surgery ,Nose ,Time-to-Treatment ,Hemangioma ,03 medical and health sciences ,0302 clinical medicine ,Postoperative Complications ,Neoplastic Syndromes, Hereditary ,medicine ,Deformity ,Humans ,Hemangioma, Capillary ,Retrospective Studies ,Skin ,Surgical approach ,business.industry ,Infant ,Retrospective cohort study ,Evidence-based medicine ,Cytoreduction Surgical Procedures ,medicine.disease ,Nasal tip ,Debulking ,Rhinoplasty ,Surgery ,Treatment Outcome ,Clinical question ,030220 oncology & carcinogenesis ,Child, Preschool ,Female ,medicine.symptom ,Atrophy ,business ,Follow-Up Studies - Abstract
Infantile hemangiomas are common benign tumors of infancy with a predilection for the face. Nasal-tip hemangiomas, termed the "Cyrano deformity," can have especially devastating psychological effects. The ideal surgical approach and timing for these patients is unclear, as numerous designs have been reported in the literature. The authors present a novel approach to nasal tip reconstruction involving an algorithmic approach to incision selection and leaving a thin rim of hemangioma tissue under the dermis after debulking to minimize skin envelope atrophy. Nineteen cases were treated with the senior author's preferred method, with a mean age of 3.3 years and follow-up of 2.5 years. At follow-up, 10 patients were deemed by the senior author to have a very good aesthetic result, and the remaining nine patients were deemed to have an excellent one. The results of this study suggest that surgical intervention as early as 3 to 4 years of age is safe and provides good aesthetic outcomes. CLINICAL QUESTION/LEVEL OF EVIDENCE:: Therapeutic, IV.
- Published
- 2020
28. Evaluation of fistula rates in three cleft palate techniques without relaxing incisions
- Author
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Bing Shi, Chen Li, Yuan-Yuan Li, Qian Zheng, Chialing Tsauo, Ren-kai Liu, Chenghao Li, Min Wu, Chao Yang, and David W. Low
- Subjects
medicine.medical_specialty ,Fistula ,Cleft Lip ,03 medical and health sciences ,0302 clinical medicine ,Medicine ,Humans ,In patient ,Retrospective Studies ,Soft palate ,business.industry ,Incidence (epidemiology) ,Modified technique ,Retrospective cohort study ,030206 dentistry ,Plastic Surgery Procedures ,medicine.disease ,Surgery ,Cleft Palate ,Levator veli palatini ,medicine.anatomical_structure ,Otorhinolaryngology ,030220 oncology & carcinogenesis ,Oral Surgery ,Palate, Soft ,business ,Postoperative fistula - Abstract
The aim of the present study was to investigate the incidence of postoperative fistula formation from a hybrid cleft palate repair compared to that from two well-established techniques. We performed a modified technique, Sommerlad-Furlow (SF), which combined the repositioning of the levator veli palatini muscles as described by Sommerlad with the double opposing Z-plasty of Furlow to lengthen the soft palate. A retrospective cohort study was conducted to evaluate patients who underwent cleft palate repair utilizing SF, Sommerlad, or Furlow techniques with the incidence of palatal fistula as the target endpoint. A total of 1,164 patients were included in the present study and underwent the following techniques: 603 cases with SF, 244 cases with Furlow, and 317 cases with Sommerlad. In addition to not requiring relaxing incisions, SF advantages included a consistently lower fistula rate compared to that of the Sommerlad technique, as well as the lowest fistula rate in patients with both hard and soft palate clefts without a cleft lip (OR:2.62 95% CI: 1.35, 5.09). However, the differences among the three techniques did not reach statistical significance in terms of a bilateral or unilateral cleft lip/palate, or in patients with a soft palate only or a submucosal cleft palate(OR: 2.22,95% CI:0.77, 6.37). Based on the results of our study, the Somerlad-Furlow technique should be preferred whenever possible.
- Published
- 2020
29. Primary lymphedema and other lymphatic anomalies are associated with 22q11.2 deletion syndrome
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Kathleen E. Sullivan, Bruno Marino, David W. Low, Maria Cristina Digilio, Elaine H. Zackai, Jessica Barry, Jean B. Belasco, Marta Unolt, Anne S. Bassett, Erwin Oechslin, Donna M. McDonald-McGinn, and Staci Kallish
- Subjects
Adult ,Male ,0301 basic medicine ,Oncology ,TBX1 ,medicine.medical_specialty ,030105 genetics & heredity ,03 medical and health sciences ,hemic and lymphatic diseases ,Internal medicine ,DiGeorge Syndrome ,Genetics ,medicine ,Humans ,Primary lymphedema ,Deletion syndrome ,In patient ,Lymphedema ,Genetics (clinical) ,business.industry ,Infant ,General Medicine ,medicine.disease ,humanities ,Lymphangiogenesis ,body regions ,030104 developmental biology ,Lymphatic system ,Female ,business - Abstract
Background Lymphedema is an abnormal accumulation of interstitial fluid within the tissues. Primary lymphedema is caused by aberrant lymphangiogenesis and it has been historically classified based on age at presentation. Although most cases are sporadic, primary lymphedema may be familial or present in association with chromosomal abnormalities and syndromic disorders. To the best of our knowledge, primary lymphedema has never been described in patients with 22q11.2 deletion syndrome. Methods and results We identified 4 patients with 22q11.2 deletion syndrome and primary lymphedema via our International 22q11.2 Deletion Syndrome Consortium. All patients underwent comprehensive clinical, laboratory and imaging assessments to rule out other causes of lymphedema. All patients had de novo typical deletions and family histories were negative for lymphedema. Conclusions We report the novel association of primary lymphedema with 22q11.2 deletion syndrome. Importantly, animal models demonstrated Tbx1 playing a critical role in lymphangiogenesis by reducing Vegfr3 expression in lymphatic endothelial cells. Moreover, the VEGFR3 pathway is essential for lymphangiogenesis with mutations identified in hereditary primary lymphedema. Accordingly, our findings provide a new insight into understanding cellular mechanisms of lymphangiogenesis disorders.
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- 2018
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30. Nasal Obstruction in Children With Cleft Lip and Palate: Results of a Cross-Sectional Study Utilizing the NOSE Scale
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Oksana Jackson, Jordan W. Swanson, Lawrence O. Lin, Jesse A. Taylor, Rosaline S. Zhang, Scott P. Bartlett, David W. Low, and Ian C. Hoppe
- Subjects
medicine.medical_specialty ,Adolescent ,Scale (ratio) ,Cross-sectional study ,Cleft Lip ,Dentistry ,03 medical and health sciences ,0302 clinical medicine ,Epidemiology ,medicine ,Humans ,Child ,030223 otorhinolaryngology ,Nose ,Retrospective Studies ,business.industry ,030206 dentistry ,Rhinoplasty ,Cleft Palate ,Treatment Outcome ,medicine.anatomical_structure ,Otorhinolaryngology ,Nasal Obstruction ,Symptom Assessment ,Oral Surgery ,business - Abstract
Objective: To characterize the epidemiology and risk factors for nasal obstruction among subjects with cleft lip and/or cleft palate (CL/P) utilizing the well-validated Nasal Obstruction Symptom Evaluation (NOSE) survey. Design: Retrospective cross-sectional study. Setting: Cleft Lip and Palate Program, Children’s Hospital of Philadelphia. Patients, Subjects: One thousand twenty-eight surveys obtained from 456 subjects (mean age: 10.10 (4.48) years) with CL/P evaluated between January 2015 and August 2017 with at least 1 completed NOSE survey. Interventions: Nasal Obstruction Symptom Evaluation surveys completed at each annual visit. Main Outcome Measures: Composite NOSE and individual symptom scores. Results: Sixty-seven percent of subjects had nasal obstruction at some point during the study period, with 49% reporting nasal obstruction at latest follow-up. subjects aged 14 years and older reported the most severe symptoms ( P = .002). Subjects with cleft lip and alveolus (CL+A) and unilateral cleft lip and palate (CLP) reported more severe nasal blockage than other phenotypes ( P = .021). subjects with a history of either posterior pharyngeal flap (PPF) or sphincter pharyngoplasty (SP) had significantly higher NOSE scores than subjects with no history of speech surgery ( P = .006). There was no significant difference ( P > .050) in NOSE scores with regard to history of primary tip rhinoplasty, nasal stent use, or nasoalveolar molding. Conclusions: There are more severe nasal obstructive symptoms among subjects older than 14 years of age, with CL+A or unilateral CLP, and with a history of PPF or SP. Future studies utilizing the NOSE are needed to evaluate and address this prevalent morbidity in the CLP population.
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- 2018
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31. 5000 Free Flaps and Counting
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Stephen J. Kovach, Ari M. Wes, Jason M. Weissler, Peter F. Koltz, Joseph M. Serletti, Michael N. Mirzabeigi, Michael G. Tecce, David W. Low, Suhail K. Kanchwala, Martin J. Carney, Joshua Fosnot, and Liza C. Wu
- Subjects
Program evaluation ,medicine.medical_specialty ,business.industry ,medicine.medical_treatment ,General surgery ,MEDLINE ,Retrospective cohort study ,Evidence-based medicine ,030230 surgery ,Microsurgery ,03 medical and health sciences ,Plastic surgery ,0302 clinical medicine ,030220 oncology & carcinogenesis ,Health care ,Medicine ,Surgery ,Outcomes research ,business - Abstract
Background The establishment of an effective clinical and academic culture within an institution is a multifactorial process. This process is cultivated by dynamic elements such as recruitment of an accomplished and diverse faculty, patient geographic outreach, clinical outcomes research, and fundamental support from all levels of an institution. This study reviews the academic evolution of a single academic plastic surgery practice, and summarizes a 10-year experience of microsurgical development, clinical outcomes, and academic productivity. Methods A 10-year retrospective institutional review was performed from fiscal years 2006 to 2016. Microsurgical flap type and operative volume were measured across all microsurgery faculty and participating hospitals. Microvascular compromise and flap salvage rates were noted for the six highest volume surgeons. Univariate and multivariable predictors of flap salvage were determined. Results The 5000th flap was performed in December of 2015 within this institutional study period. Looking at the six highest volume surgeons, free flaps were examined for microvascular compromise, with an institutional mean take-back rate of 1.53 percent and flap loss rate of 0.55 percent across all participating hospitals. Overall, 74.4 percent of cases were breast flaps, and the remaining cases were extremity and head and neck flaps. Conclusions Focused faculty and trainee recruitment has resulted in an academically and clinically productive practice. Collaboration among faculty, staff, and residents contributes to continual learning, innovation, and quality patient care. This established framework, constructed based on experience, offers a workable and reproducible model for other academic plastic surgery institutions. Clinical question/level of evidence Therapeutic, IV.
- Published
- 2018
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32. Occipital cervical fusion with a vascularized free fibular graft
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Rosemary E. Henn, Phillip B. Storm, Myron L Rolle, and David W. Low
- Subjects
medicine.medical_specialty ,business.industry ,medicine.medical_treatment ,Bony fusion ,Cervical spine ,Resection ,Radiation therapy ,Skull ,medicine.anatomical_structure ,medicine ,Radiology ,Cervical fusion ,business ,Diffi cult - Abstract
Obtaining a solid bony fusion after an extensive skull base and upper cervical spine resection in a patient who has previously received radiation therapy is extremely diffi cult and usually results in a pseudoarthrosis. We report a technique that uses a free fi bular graft with an arteriovenous loop for a posterior occipital cervical fusion.
- Published
- 2019
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33. Columellar Reconstruction following Nasal Continuous Positive Airway Pressure Injury
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Jordan W. Swanson, Anthony J. Wilson, David W. Low, Catherine S. Chang, and Scott P. Bartlett
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Male ,medicine.medical_specialty ,Adolescent ,medicine.medical_treatment ,Scars ,030230 surgery ,03 medical and health sciences ,0302 clinical medicine ,medicine ,Humans ,Continuous positive airway pressure ,Nasal cartilages ,Child ,030223 otorhinolaryngology ,Nose ,Nasal Septum ,Retrospective Studies ,Columella ,Continuous Positive Airway Pressure ,business.industry ,Cartilage ,respiratory system ,Rhinoplasty ,Surgery ,Treatment Outcome ,medicine.anatomical_structure ,Nasal injury ,Child, Preschool ,Female ,Composite graft ,medicine.symptom ,business ,Follow-Up Studies - Abstract
Nasal continuous positive airway pressure is used increasingly to treat pulmonary immaturity in premature neonates. Nasal injury is common with nasal continuous positive airway pressure use, with full-thickness tissue loss at the columella among the most devastating complications. Columellar necrosis often imparts a full-thickness injury to the overlying columellar skin, the medial crura of the lower lateral nasal cartilages, the anteromedial inner nasal mucosal lining, and potentially the anterior septal cartilage. Consequently, the columella can become scarred and shortened. Although multiple techniques have been described to reconstruct the columella, no known technique has been specifically developed to treat the unique columellar defect common to severe nasal continuous positive airway pressure injury. Donor-site morbidity related to these techniques, and how growth of the reconstructed nose will proceed, are obvious concerns, especially in young children. The authors present a novel reconstruction technique that uses recreation of the defect with posteriorly based book flaps and auricular chondrocutaneous composite graft interposition. This technique has several advantages, including avoiding central facial scars, supplying well-matched skin color and texture, and facilitating robust tip support. The authors retrospectively review the use and outcomes of this technique from 1995 and 2016 on all patients with a history of nasal continuous positive airway pressure columellar necrosis at their center.
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- 2018
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34. Managing Groin Wounds after Infrainguinal Vascular Procedures: Examining the Reoperative Events and Complication Profile of Muscle Flap Reconstruction
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Liza C. Wu, Stephen J. Kovach, Michael N. Mirzabeigi, Suhail K. Kanchwala, Joseph M. Serletti, David W. Low, Megan Fracol, John P. Fischer, and Marten N. Basta
- Subjects
Male ,medicine.medical_specialty ,Time Factors ,Clinical Decision-Making ,Surgical Wound ,Comorbidity ,030204 cardiovascular system & hematology ,030230 surgery ,Groin ,Surgical Flaps ,Quadriceps Muscle ,Coronary artery disease ,03 medical and health sciences ,Postoperative Complications ,0302 clinical medicine ,Risk Factors ,Diabetes mellitus ,medicine ,Humans ,Aged ,Retrospective Studies ,Wound Healing ,business.industry ,Patient Selection ,Retrospective cohort study ,General Medicine ,Perioperative ,Middle Aged ,Plastic Surgery Procedures ,medicine.disease ,Surgery ,Treatment Outcome ,medicine.anatomical_structure ,Female ,Cardiology and Cardiovascular Medicine ,Complication ,business ,Vascular Surgical Procedures ,Dyslipidemia - Abstract
Background The literature has been void of large outcome studies detailing the efficacy and complication profile of muscle flap reconstruction of complex groin wounds. Furthermore, a first-line choice for muscle flap selection remains unclear. The aim of this study is 2-fold: (1) to examine the complication profile and associated risk factors following muscle flap coverage and (2) to provide a compared efficacy analysis of the sartorius muscle flap (SMF) versus the rectus femoris flap (RFF) in the treatment of wounds following an infrainguinal vascular procedure. Methods A retrospective review of records was performed on all patients undergoing complex groin wound reconstruction from January 2005 to September 2014. Results A total of 201 flaps were performed on 184 patients. There were no sentinel bleeding events through the course of graft salvage or perioperative morbidity beyond local wound complications. Coronary artery disease (P = 0.049), dyslipidemia (P
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- 2017
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35. Radiologic Evaluation of the Influence of Cleft Type on Nasal Dorsum Growth
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Lingling Pu, Cheng-hao Li, Bing Shi, David W. Low, and Ren-kai Liu
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Orthodontics ,Dorsum ,business.industry ,Radiography ,Significant difference ,respiratory system ,Nasal bone ,Short nose ,Radiologic Evaluation ,Deformity ,otorhinolaryngologic diseases ,Medicine ,Nasal dorsum ,medicine.symptom ,business - Abstract
PurposeThe study was designed to evaluate whether intrinsic morphological characteristics of the nasal dorsum are affected by cleft type, specifically cleft lip only (CL) and cleft lip with cleft palate(CL/P).Methods576 cleft patients (278 CL only, 298 CL/P), and 333 individuals without orofacial clefts were retrospectively enrolled. Lateral cephalometric radiographs of all individuals were taken to evaluate the nasal length and nasal dorsum height. Dunn’s test was used to analyze the difference (p< 0.001).ResultsIn CL and control, the angulation of the nasal bone and nasal dorsum increase by age similarly (5y-18y, p>0.05). In CL, the total dorsal length is significantly shorter (5y-18y,ppIn CLP, there is no significant difference in the nasal bone angle compared with controls between 5y-7y. However, it develops insufficiently as children grow (8y-18y,p, ppp>0.05), although it is shorter during 8y to 16y (pppConclusionCL inhibits the growth of nasal dorsum length, leading to short nose deformity. CL/P patients are prone to saddle-nose deformity because of the diminished nasal height (decreased nasal angle).
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- 2019
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36. Complications and associated risk factors after surgical management of proximal femoral fractures
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Nike Walter, Dominik Szymski, Steven M. Kurtz, David W. Lowenberg, Volker Alt, Edmund C. Lau, and Markus Rupp
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proximal femur fracture ,risk factors ,complications ,union failure ,fracture-related infection ,proximal femur fractures (pffs) ,fracture-related infections ,intertrochanteric fractures ,subtrochanteric fractures ,mechanical complications ,neck fractures ,femoral fractures ,infection ,rheumatoid disease ,hypertension ,Orthopedic surgery ,RD701-811 - Abstract
Aims: This work aimed at answering the following research questions: 1) What is the rate of mechanical complications, nonunion and infection for head/neck femoral fractures, intertrochanteric fractures, and subtrochanteric fractures in the elderly USA population? and 2) Which factors influence adverse outcomes? Methods: Proximal femoral fractures occurred between 1 January 2009 and 31 December 2019 were identified from the Medicare Physician Service Records Data Base. The Kaplan-Meier method with Fine and Gray sub-distribution adaptation was used to determine rates for nonunion, infection, and mechanical complications. Semiparametric Cox regression model was applied incorporating 23 measures as covariates to identify risk factors. Results: Union failure occured in 0.89% (95% confidence interval (CI) 0.83 to 0.95) after head/neck fracturs, in 0.92% (95% CI 0.84 to 1.01) after intertrochanteric fracture and in 1.99% (95% CI 1.69 to 2.33) after subtrochanteric fractures within 24 months. A fracture-related infection was more likely to occur after subtrochanteric fractures than after head/neck fractures (1.64% vs 1.59%, hazard ratio (HR) 1.01 (95% CI 0.87 to 1.17); p < 0.001) as well as after intertrochanteric fractures (1.64% vs 1.13%, HR 1.31 (95% CI 1.12 to 1.52); p < 0.001). Anticoagulant use, cerebrovascular disease, a concomitant fracture, diabetes mellitus, hypertension, obesity, open fracture, and rheumatoid disease was identified as risk factors. Mechanical complications after 24 months were most common after head/neck fractures with 3.52% (95% CI 3.41 to 3.64; currently at risk: 48,282). Conclusion: The determination of complication rates for each fracture type can be useful for informed patient-clinician communication. Risk factors for complications could be identified for distinct proximal femur fractures in elderly patients, which are accessible for therapeutical treatment in the management. Cite this article: Bone Jt Open 2023;4(10):801–807.
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- 2023
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37. Epidemiology and treatment of proximal femoral fractures in the elderly U.S. population
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Nike Walter, Dominik Szymski, Steven M. Kurtz, David W. Lowenberg, Volker Alt, Edmund C. Lau, and Markus Rupp
- Subjects
Medicine ,Science - Abstract
Abstract Proximal femoral fractures are a serious complication, especially for elderly patients. Detailed epidemiological analyzes provide a valuable resource for stakeholders in the health care system in order to foresee future development possibly influenceable by adaption of therapeutic procedures and prevention strategies. This work aimed at answering the following research questions: (1) What are the incidence rates of proximal femoral fractures in the elderly U.S. population? (2) What is the preferred treatment procedure for these fractures? Proximal femoral fractures occurred between January 1, 2009 and December 31, 2019 in patients ≥ 65 years were identified from the Medicare Physician Service Records Data Base. The 5% sample of Medicare beneficiaries, equivalent to the records from approximately 2.5 million enrollees formed the basis of this study. Fractures were grouped into head/neck, intertrochanteric, and subtrochanteric fractures. The overall incidence rate, age and sex specific incidence rates as well as incidence rate ratios were calculated. Common Procedural Terminology (CPT) codes were used to identify procedures and operations. In 2019, a total number of 7982 femoral head/neck fractures was recorded. In comparison to 9588 cases in 2009, the incidence substantially decreased by 26.6% from 666.7/100,000 inhabitants to 489.3/100,000 inhabitants (z = − 5.197, p
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- 2023
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38. Complex Truncal Masses in the Setting of CLOVES Syndrome: Aesthetic and Functional Implications
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Martin J. Carney, Jason M. Weissler, David W. Low, and Valeriy Shubinets
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Adult ,Male ,medicine.medical_specialty ,Esthetics ,Vascular Malformations ,medicine.medical_treatment ,Risk Assessment ,Severity of Illness Index ,Sampling Studies ,Young Adult ,03 medical and health sciences ,Rare Diseases ,0302 clinical medicine ,Preoperative Care ,medicine ,Sclerotherapy ,Humans ,Surgery, Plastic ,Thoracic Wall ,Nevus ,Retrospective Studies ,Academic Medical Centers ,Wound Healing ,business.industry ,Vascular malformation ,Multimodal therapy ,Perioperative ,Plastic Surgery Procedures ,medicine.disease ,Debulking ,Magnetic Resonance Imaging ,Musculoskeletal Abnormalities ,Surgery ,Treatment Outcome ,030220 oncology & carcinogenesis ,Overgrowth syndrome ,Quality of Life ,Female ,Lipoma ,Tomography, X-Ray Computed ,Packed red blood cells ,business ,030217 neurology & neurosurgery ,CLOVES syndrome - Abstract
Congenital lipomatous overgrowth, vascular malformations, epidermal nevi, and skeletal abnormalities (CLOVES) is a complex overgrowth syndrome with dramatic aesthetic and functional implications. The truncal masses characteristic of CLOVES syndrome are described as vascular malformations or lipomatous lesions with variable vascular components. Herein, we describe our single-institution experience with surgical excision of CLOVES-related truncal masses and discuss future directions in treatment of these complex anomalies. A single-institution retrospective review was performed for patients diagnosed with CLOVES syndrome. Patients undergoing excision of truncal vascular malformations were included. Outcome measures included perioperative characteristics [estimated blood loss (EBL), specimen size/anatomic location, blood-product requirement], as well as length-of-stay [LOS], and complication profile. Mean follow-up was 23.4 months (range 4.2–44). Three consecutive patients were reviewed, accounting for 4 surgical operations. One patient underwent two operations for two distinct masses. All lesions were located on the upper back or flank with various degrees of muscular involvement. One patient required no transfusions with an uneventful 2-day hospitalization. The remaining three patients had an EBL ranging from 1500 to 6450 mL, requiring 9–13 units of packed red blood cells and 5–8 units of fresh frozen plasma during LOS (averaging 5 days). Mean weight of resected masses was 6.26 lbs (range 2.04–12 lbs) and mass dimensions ranged between 1778.9 and 15,680 cm3. One patient with recurrence was subsequently treated with a combination of sclerotherapy and rapamycin, leading to significant mass reduction. Management of CLOVES syndrome requires a collaborative and multimodal approach. Although surgical debulking is one treatment option, non-invasive medical modalities and sclerotherapy should be considered prior to surgical resection. This journal requires that authors assign a level of evidence to each article. For a full description of these Evidence-Based Medicine ratings, please refer to the Table of Contents or the online Instructions to Authors www.springer.com/00266 .
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- 2016
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39. International Adoptees With Cleft Lip and/or Palate
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Jason D. Wink, David W. Low, J. Thomas Paliga, Susan A. Friedman, Marilyn Cohen, Jesse A. Taylor, Paul L. Shay, Cynthia Solot, Oksana Jackson, and Jesse A. Goldstein
- Subjects
Male ,Reoperation ,China ,Pediatrics ,medicine.medical_specialty ,Velopharyngeal Insufficiency ,Demographics ,Cleft Lip ,International Cooperation ,Population ,030230 surgery ,Speech therapy ,03 medical and health sciences ,Orthognathic Surgical Procedures ,0302 clinical medicine ,Velopharyngeal insufficiency ,Adoption ,Humans ,Medicine ,Child ,education ,Retrospective Studies ,Philadelphia ,education.field_of_study ,business.industry ,Infant, Newborn ,Infant ,Retrospective cohort study ,Treatment Outcome ,Velopharyngeal incompetence ,Male patient ,Child, Preschool ,030220 oncology & carcinogenesis ,Female ,Surgery ,business - Abstract
BACKGROUND International adoptees with cleft lip and palate (CLP) are a growing population in the United States. They represent a clinical challenge, presenting at various ages and stages of cleft repair. METHODS A retrospective review of patients seen at the CLP Program at the Children's Hospital of Philadelphia (CHOP) between 1998 and 2012 with a history of international adoption was performed. Demographics, surgical histories, and long-term speech outcomes were reviewed. RESULTS Seventy-four female and 77 male patients were evaluated. Patients were adopted at an average age of 2.3 years (range, 0.4-8.6 years); 80.8% (n = 122) of patients were adopted from China. The rate of international cleft adoption increased by approximately 1.5 patients per year (r = 0.7739, P < 0.001); 13.2% (n = 19) of all subjects with cleft palates had oronasal fistulas (ONFs) that required repair. The ONF rates for primary palatoplasties at CHOP were significantly lower compared to both preadoption repairs (P = 0.002) and postadoption repairs at outside hospitals (P = 0.01); 14.8% (n = 21) of all patients had secondary surgeries for velopharyngeal incompetence (VPI). Rates of secondary surgery for VPI were also significantly lower for primary palatoplasties at CHOP compared to both preadoption repairs (P = 0.0018) and postadoption repairs at outside hospitals (P = 0.0033). CONCLUSIONS International adoptees with CLP are a growing population and are clinically challenging with high ONF rates and high secondary surgery rates for VPI. We recommend expedited repair of unoperated cleft palates in adoptees older than 18 months. Adopted patients with CLP should be rigorously evaluated for the need for speech therapy and secondary surgeries to correct for VPI.
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- 2016
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40. Palatal Measurements Pre- and Post-Furlow Cleft Palate Repair: Analysis of Palatal Lengthening and Comparison Within Cleft Types
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Oksana Jackson, Elena Nikonova, Jesse A. Taylor, Jason W. Yu, David W. Low, and Brian L. Chang
- Subjects
Orthodontics ,Fistula ,business.industry ,medicine.medical_treatment ,030206 dentistry ,Plastic Surgery Procedures ,Cleft Palate ,03 medical and health sciences ,0302 clinical medicine ,Postoperative Complications ,Treatment Outcome ,Otorhinolaryngology ,Z-plasty ,Cleft palate repair ,medicine ,Humans ,Oral Surgery ,Palate, Soft ,030223 otorhinolaryngology ,business ,Child ,Pre and post ,Retrospective Studies - Abstract
Objective: The purpose of this study was to characterize intraoperative palatal lengthening with the modified Furlow cleft palatal repair and to determine whether lengthening correlated with preoperative cleft width, cleft type, or operating surgeon. Design: Retrospective study. Setting: Academic tertiary care pediatric hospital. Patients: One hundred eighty pediatric patients undergoing primary or secondary palatoplasty using the Furlow technique. Interventions: Cleft and palatal lengths and widths were measured pre- and post-Furlow cleft palatal repair. Main Outcome Measures: Immediate postoperative percentage change in surface palate length, straight palate length, and soft palate length. Results: The average cleft widest width and width at the hard–soft palate junction were 10.2 and 9.5 mm, respectively, and varied with Veau cleft type. Following Furlow palatoplasty, lengths of the curved, straight, and soft palate increased by 7.5%, 15.8%, and 30.6%, respectively. Degree of palatal lengthening varied among surgeons and Veau cleft type but was not related to cleft width. Seven (4.0%) patients developed postoperative oronasal fistulas. Patients with a Veau IV cleft and larger cleft widths were at an increased risk for fistula formation. Conclusions: This study demonstrates that overall palatal lengthening occurs with the modified Furlow technique. Long-term follow-up studies are needed to determine the clinical relevance of these findings.
- Published
- 2018
41. Cleft Palate
- Author
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David W Low, Alison E Kaye, and Oksana A Jackson
- Abstract
A cleft of the palate represents one of the most common congenital anomalies of the craniofacial region. Palatal clefting can occur in combination with a cleft of the lip and alveolus or as an isolated finding and can vary significantly in severity. The intact palate is a structure that separates the oral and nasal cavities, and the function of the palate is to close off the nasal cavity during deglutition and to regulate the flow of air between the nose and mouth during speech production. An unrepaired cleft palate can thus result in nasal regurgitation of food and liquid, early feeding difficulties, and impaired speech development. The goals of surgical repair are to restore palatal integrity by closing the cleft defect and repairing the musculature to allow for normal function during speech. The secondary goal of cleft palate repair is to minimize deleterious effects on growth of the palate and face, which can be impacted by standard surgical interventions. This review describes two of the most commonly performed cleft palate repair techniques in use today, as well as highlighting special anatomic considerations, summarizing perioperative care, and reviewing postoperative complications and their management. This review contains 11 figures, 2 videos, 3 tables and 63 references Key words: cleft, cleft team, Furlow, orofacial, oronasal fistula, palatoplasty, speech, submucous cleft, velopharyngeal insufficiency
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- 2018
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42. 5000 Free Flaps and Counting: A 10-Year Review of a Single Academic Institution's Microsurgical Development and Outcomes
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Martin J, Carney, Jason M, Weissler, Michael G, Tecce, Michael N, Mirzabeigi, Ari M, Wes, Peter F, Koltz, Suhail K, Kanchwala, David W, Low, Stephen J, Kovach, Liza C, Wu, Joseph M, Serletti, and Joshua, Fosnot
- Subjects
Adult ,Male ,Salvage Therapy ,Academic Medical Centers ,Microsurgery ,Middle Aged ,Pennsylvania ,Plastic Surgery Procedures ,Free Tissue Flaps ,Logistic Models ,Outcome Assessment, Health Care ,Humans ,Female ,Program Development ,Aged ,Program Evaluation ,Retrospective Studies - Abstract
The establishment of an effective clinical and academic culture within an institution is a multifactorial process. This process is cultivated by dynamic elements such as recruitment of an accomplished and diverse faculty, patient geographic outreach, clinical outcomes research, and fundamental support from all levels of an institution. This study reviews the academic evolution of a single academic plastic surgery practice, and summarizes a 10-year experience of microsurgical development, clinical outcomes, and academic productivity.A 10-year retrospective institutional review was performed from fiscal years 2006 to 2016. Microsurgical flap type and operative volume were measured across all microsurgery faculty and participating hospitals. Microvascular compromise and flap salvage rates were noted for the six highest volume surgeons. Univariate and multivariable predictors of flap salvage were determined.The 5000th flap was performed in December of 2015 within this institutional study period. Looking at the six highest volume surgeons, free flaps were examined for microvascular compromise, with an institutional mean take-back rate of 1.53 percent and flap loss rate of 0.55 percent across all participating hospitals. Overall, 74.4 percent of cases were breast flaps, and the remaining cases were extremity and head and neck flaps.Focused faculty and trainee recruitment has resulted in an academically and clinically productive practice. Collaboration among faculty, staff, and residents contributes to continual learning, innovation, and quality patient care. This established framework, constructed based on experience, offers a workable and reproducible model for other academic plastic surgery institutions.Therapeutic, IV.
- Published
- 2018
43. Occipital cervical fusion with a vascularized free fibular graft
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Phillip B, Storm, primary, Myron L, Rolle, additional, Rosemary E, Henn, additional, and David W, Low, additional
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- 2019
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44. Lower Extremity Limb Salvage After Trauma
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Liza C. Wu, Christopher Bibbo, Jonas A. Nelson, Samir Mehta, Stephen J. Kovach, David W. Low, John P. Fischer, and L. Scott Levin
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Male ,medicine.medical_specialty ,Limb salvage ,Free flap ,Free Tissue Flaps ,Continuous variable ,symbols.namesake ,Postoperative Complications ,Risk Factors ,Prevalence ,Humans ,Medicine ,Orthopedics and Sports Medicine ,Fisher's exact test ,Retrospective Studies ,Salvage Therapy ,business.industry ,Trauma center ,Retrospective cohort study ,General Medicine ,Middle Aged ,Pennsylvania ,Anterolateral thigh ,University hospital ,Surgery ,Treatment Outcome ,symbols ,Female ,business ,Leg Injuries - Abstract
Objectives To compare the outcomes and complications of the anterolateral thigh free flap (ALT FF) versus other free muscle flaps for reconstruction of traumatic defects of the lower extremity. Design Retrospective review from a single plastic and reconstructive surgical unit comparing outcomes between 2 free flap groups-ALT FF and other commonly used muscle free flaps. Setting Tertiary referral University Hospital Level I Trauma Center. Patients Hundred patients who underwent lower extremity salvage for traumatic injuries. Intervention Free flap coverage of traumatic lower extremity injuries. Main outcomes measurements Successful for limb salvage, intraoperative and postoperative complications. Data synthesis Categorical variables were analyzed using χ and Fisher exact tests; continuous variables were examined using Wilcoxon rank-sum test. Conclusions The ALT FF is equivalent in success to other traditional nonfasciocutaneous free flaps but may provide a more durable supple coverage with all components of the native soft-tissue envelop that can be tailored to the reconstructive needs of the traumatized lower extremity. Limb salvage outcomes may still be heavily influenced by the original severity of injury. Level of evidence Therapeutic Level III. See Instructions for Authors for a complete description of levels of evidence.
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- 2015
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45. Vein grafting your way out of trouble: Examining the utility and efficacy of vein grafts in microsurgery
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L. Scott Levin, David W. Low, Stephen J. Kovach, Ritwik Grover, Joseph M. Serletti, Liza C. Wu, Suhail K. Kanchwala, John P. Fischer, and Jonas A. Nelson
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Microsurgery ,medicine.medical_specialty ,Mammaplasty ,medicine.medical_treatment ,Vein graft ,Subgroup analysis ,Free flap ,Free Tissue Flaps ,Veins ,Resection ,Fibrinolytic Agents ,medicine ,Humans ,Single institution ,Vein ,Retrospective Studies ,Salvage Therapy ,Heparin ,business.industry ,Graft Survival ,Anticoagulants ,Thrombosis ,Arteries ,Plastic Surgery Procedures ,Surgery ,Treatment Outcome ,medicine.anatomical_structure ,Lower Extremity ,Cohort ,Vascular Grafting ,business ,Head ,Neck - Abstract
Summary Introduction There is limited data on the indications, outcomes, and associated complications with use of interpositional vein grafts (IVG) in microsurgery. This study sought to critically examine and update the utility of this microsurgical technique. Methods All microsurgical cases at a single institution from 2005 to 2011 were examined for use of IVGs in the primary procedure or during take back or salvage attempts. We examined the cohort overall and performed a subgroup analysis by timing of initial IVG. Results In the study period, 1718 patients underwent 2368 free flaps. 51 IVGs were utilized in 38 patients (2.2%) and 38 flaps (1.6%). Eight (42.1%) of the primary procedure IVGs (n = 19) were planned preoperatively. Nine total flap losses (24%) occurred when IVGs were utilized, 89% of which occurred in the take back cohort (p = 0.02). However, planned IVG had a 100% success rate, and IVG utilized in the primary procedure overall had a 95% success rate. Importantly, A significantly higher rate of thrombotic events was noted in all primary cases where IVGs were utilized (p = 0.005). Conclusions This study demonstrates that IVGs can be utilized in primary free flap reconstructions with success rates exceeding 95%. However, in salvage procedures, the use of vein grafts does not approach the same rate of success likely due to multiple factors. Yet when utilized appropriately with thrombectomy and resection of the thrombosed vessel to healthy intima, IVGs can provide an important tool for flap salvage. Level of Evidence: prognostic/risk category, level II.
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- 2015
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46. Multiple Hybrid Cysts in a Child: Challenge
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Tricia R. Bhatti, Mark C. Mochel, Adam I. Rubin, David W. Low, and James Abbott
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Pediatrics ,medicine.medical_specialty ,business.industry ,MEDLINE ,Medicine ,Dermatology ,General Medicine ,business ,Pathology and Forensic Medicine - Published
- 2017
47. Advanced Plastic Surgical Techniques: Facial Prosthetic Considerations, Periorbital Free Flaps, Reanimation, and Corneal Sensory Restoration
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David W. Low, Kenneth Kent, Oksana Jackson, and Phuong D. Nguyen
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Periorbital region ,medicine.medical_specialty ,business.industry ,medicine.medical_treatment ,030230 surgery ,Microsurgery ,eye diseases ,Tissue transfer ,Surgery ,03 medical and health sciences ,Facial prosthesis ,0302 clinical medicine ,Facial defect ,030221 ophthalmology & optometry ,Medicine ,Surgical preparation ,Orbital prosthesis ,business - Abstract
Orbital deformities, especially when associated with an absence of the ocular globe, are difficult to conceal and often cause profound difficulties in children. Restoration of facial form and aesthetics can be readily achieved with combinations of surgical reconstruction and a well-made ocular or orbital prosthesis. A multispecialty approach with extensive communication between the patient and family is necessary to plan the appropriate long-term goals. Microsurgical free tissue transfer techniques can offer a variety of tissues for the appropriate replacement or augmentation of missing or deficient tissues. Furthermore, microsurgical reconstruction can provide a number of composite flaps in a single operation without the need for staging. This chapter emphasizes both the use of microsurgery in reconstructing the periorbital region in children and the surgical preparation of the facial defect for a facial prosthesis, as well as describing the prosthetic considerations important for successful rehabilitation of patients with periorbital defects.
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- 2017
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48. Plastic Surgical Considerations in Pediatric Dermatologic Abnormalities
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David W. Low and Oksana A. Jackson
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- 2017
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49. Female Genital Mutilation Reconstruction: A Preliminary Report
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Ivona Percec, David W. Low, and Catherine S. Chang
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Female circumcision ,Adult ,medicine.medical_specialty ,media_common.quotation_subject ,Sexual Behavior ,Embarrassment ,Clitoris ,030230 surgery ,Surgical Flaps ,03 medical and health sciences ,0302 clinical medicine ,medicine ,Prevalence ,Humans ,Interpersonal Relations ,media_common ,030219 obstetrics & reproductive medicine ,Human rights ,business.industry ,General surgery ,General Medicine ,Evidence-based medicine ,Labia majora ,Plastic Surgery Procedures ,Human Rights Abuses ,medicine.anatomical_structure ,Treatment Outcome ,Circumcision, Female ,Surgery ,Female ,Self Report ,Sexual function ,business ,Follow-Up Studies - Abstract
Background Female genital mutilation (FGM) is internationally recognized as a violation of human rights. Though rarely discussed, FGM is prevalent, affecting hundreds of millions of females worldwide. Objectives We believe that is important for plastic surgeons to be informed and prepared to address the surgical and emotional needs of these women. We present our experience on treatment of women subjected to FGM. Methods Three consecutive patients were treated by our clitoral restoration procedure. The procedure involves conscious sedation and involves wide release of scar tissue around the labia majora and clitoris. Labial flaps are elevated and secured down to the periosteum and the clitoris is allowed to remucosalize. Results Three females with grade II mutilation were treated. The average age was 32.3-years-old and the average follow up was 305 days. All patients self-reported improved sexual function and decreased embarrassment with their partners. And all recommended the treatment to other women subjected to FGM. Conclusions FGM is a violation of the basic rights of women and children. Plastic surgeons can help these women restore their physical and psychological sense of well-being by providing effective reconstructive options. Our goal is to raise awareness of this problem and describe a simple yet effective treatment for women that have been subject to FGM. Level of evidence 5.
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- 2017
50. The Effect of Furlow Palatoplasty Timing on Speech Outcomes in Submucous Cleft Palate
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Marilyn Cohen, Brianne Mitchell, David W. Low, Cynthia Solot, Scott P. Bartlett, Oksana Jackson, Jesse A. Taylor, and Jordan W. Swanson
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Male ,medicine.medical_specialty ,Speech production ,Scoring system ,Time Factors ,Velopharyngeal Insufficiency ,Adolescent ,Asymptomatic ,Speech Disorders ,03 medical and health sciences ,0302 clinical medicine ,Velopharyngeal insufficiency ,Furlow palatoplasty ,Medicine ,Humans ,030223 otorhinolaryngology ,Child ,Retrospective Studies ,business.industry ,Age Factors ,Retrospective cohort study ,Plastic Surgery Procedures ,Surgery ,Cleft Palate ,Treatment Outcome ,030220 oncology & carcinogenesis ,Submucous cleft palate ,Child, Preschool ,Female ,medicine.symptom ,Palate, Soft ,business ,Articulation (phonetics) ,Follow-Up Studies - Abstract
BACKGROUND Because some patients with submucous cleft palate (SMCP) are asymptomatic, surgical treatment is conventionally delayed until hypernasal resonance is identified during speech production. We aim to identify whether speech outcomes after repair of a SMCP is influenced by age of repair. METHODS We retrospectively studied nonsyndromic children with SMCP. Speech results, before and after any surgical treatment or physical management of the palate were compared using the Pittsburgh Weighted Speech Scoring system. RESULTS Furlow palatoplasty was performed on 40 nonsyndromic patients with SMCP, and 26 patients were not surgically treated. Total composite speech scores improved significantly among children repaired between 3 and 4 years of age (P = 0.02), but not older than 4 years (P = 0.63). Twelve (86%) of 14 patients repaired who are older than 4 years had borderline or incompetent speech (composite Pittsburgh Weighted Speech Scoring ≥3) compared with 2 (29%) of 7 repaired between 3 and 4 years of age (P = 0.0068), despite worse prerepair scores in the latter group. Resonance improved in children repaired who are older than 4 years, but articulation errors persisted to a greater degree than those treated before 4 years of age (P = 0.01.) CONCLUSIONS: Submucous cleft palate repair before 4 years of age appears associated with lower ultimate rates of borderline or incompetent speech. Speech of patients repaired at or after 4 years of age seems to be characterized by persistent misarticulation. These findings highlight the importance of timely diagnosis and management.
- Published
- 2017
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