35 results on '"Sarkar, Sauradeep"'
Search Results
2. Growth hormone storm following infarction of a residual growth hormone secreting pituitary macroadenoma.
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Goyal-Honavar, Abhijit, Sarkar, Sauradeep, Chacko, Geeta, Balakrishnan, Rajesh, Asha, H. S., and Chacko, Ari G.
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SOMATOTROPIN ,ACROMEGALY ,THYROID crisis ,INFARCTION ,PITUITARY tumors ,METABOLIC disorders - Abstract
Thyrotroph pituitary adenomas have been reported to be a rare cause of 'thyroid storms', causing myriad metabolic and autonomic disturbances. In this case, we describe the second reported case in literature of a 'GH storm' in an infarcted somatotroph adenoma. We describe a residual invasive somatotroph macroadenoma that underwent infarction, producing a dramatic elevation in serum GH levels. While infarction of adenomas may in some cases lead to remission, the patient went on to require re-surgery and re-radiation due to growth of the residual viable tumour. 'GH storms' are rare but interesting events that may occur in somatotroph adenomas. Infarction or apoplexy must be considered when managing residual adenomas. [ABSTRACT FROM AUTHOR]
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- 2024
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3. Morphological Classification of Pituitary Tumors With Suprasellar Extension.
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Sarkar, Sauradeep, Corrales, C. Eduardo, Laws Jr, Edward R., and Smith, Timothy R.
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- 2024
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4. Klimawandel für Lungenfachärzte: ein fokussierter Überblick.
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Balakrishnan, Bathmapriya, Callahan, Sean J., Cherian, Sujith V., Subramanian, Abirami, Sarkar, Sauradeep, Bhatt, Nitin, and Scholand, Mary-Beth
- Abstract
Der Klimawandel hat negative Auswirkungen auf die globale Gesundheit. Temperaturschwankungen, Unwetter, eine sich verschlechternde Luftqualität und eine zunehmend unsichere Versorgung mit Nahrungsmitteln und sauberem Wasser bedrohen in wachsendem Maße die menschliche Gesundheit. Bis zum Ende des 21. Jahrhunderts wird mit einem globalen Temperaturanstieg von bis zu 6,4 °C gerechnet, was die Bedrohung weiter verschärft. Die Öffentlichkeit und die Angehörigen der Gesundheitsberufe, einschließlich der Lungenfachärzte, sind sich der negativen Auswirkungen des Klimawandels und der Luftverschmutzung bewusst und unterstützen die Bemühungen zur Minderung ihrer Folgen. In der Tat gibt es deutliche Hinweise darauf, dass ein vorzeitiger Herztod mit der Exposition gegenüber Luftverschmutzung über die Atemwege, die als Eintrittspforte fungieren, zusammenhängt. Es gibt jedoch nur wenige Leitlinien, die Lungenfachärzten helfen, die Auswirkungen des Klimawandels und der Luftverschmutzung auf das breite Spektrum von Lungenerkrankungen zu erkennen. Lungenfachärzte benötigen evidenzbasiertes Wissen über die Auswirkungen des Klimawandels und der Luftverschmutzung auf bestimmte Lungenerkrankungen, um Patienten kompetent informieren und Risiken minimieren zu können. Unser Ziel ist es, Lungenfachärzte mit dem Wissen und den Werkzeugen auszustatten, die sie benötigen, um die Gesundheit ihrer Patienten zu verbessern und negative Auswirkungen trotz der Bedrohungen durch den Klimawandel zu verhindern. In dieser Übersichtsarbeit stellen wir den aktuellen Wissensstand zu den Auswirkungen des Klimawandels und der Luftverschmutzung auf eine Vielzahl von Lungenerkrankungen dar. Dieses Wissen soll es ermöglichen, anstelle einer reaktiven Behandlung von Krankheiten einen proaktiven und individualisierten Ansatz für Präventionsstrategien für Patienten zu entwickeln. [ABSTRACT FROM AUTHOR]
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- 2024
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5. A Multicenter Study of Clinical Outcomes and Volumetric Trends in Microprolactinomas.
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Hong, Christopher, Kilgallon, Jack, Sarkar, Sauradeep, Omara, Chady, Sajed, Sulaiman, Bakker, Leontine, Biermasz, Nienke, van Furth, Wouter, Verstegen, Marco, Lobatto, Daniel, Drexler, Richard, Flitsch, Jorg, Ricklefs, Franz, Ryba, Alice, Guaraldi, Federica, Min, Le, and Smith, Timothy
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TREATMENT effectiveness ,TUMOR growth - Abstract
This article, titled "A Multicenter Study of Clinical Outcomes and Volumetric Trends in Microprolactinomas," explores the correlation between prolactin levels, tumor volumes, and clinical outcomes in patients with pituitary microadenomas. The study found that there was no significant correlation between prolactin levels and tumor volume at diagnosis. However, patients with higher tumor volumes tended to have higher prolactin levels. The article also discusses the different treatment options for microprolactinomas, including observation, medical therapy, and surgery. It concludes that tumors with higher prolactin levels may be more likely to undergo medical treatment, while tumors with lower levels may be suitable for surveillance as they tend to shrink over time. The article suggests that an elevated baseline PRL/volume ratio may indicate tumor growth that may require intervention. [Extracted from the article]
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- 2024
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6. Transsphenoidal Surgery in Craniopharyngioma Patients: Outcomes Stratified by Tumor Subtype.
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Balagurunath, Kaasinath, Hong, Christopher S., Sarkar, Sauradeep, Robbins, Michelle, Gerstl, Jakob, Corrales, Carleton E., and Smith, Timothy R.
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CRANIOPHARYNGIOMA ,RHINORRHEA ,TUMORS - Abstract
This article examines the outcomes of transsphenoidal surgery in adult craniopharyngioma patients, specifically stratified by tumor subtype. The study analyzed a cohort of 36 patients who underwent surgery between 2008 and 2019, categorizing them into adamantinomatous, papillary, and indeterminate subtypes. The results showed that there were no significant differences in demographics, preoperative tumor characteristics, or postoperative complications among the three subtypes. The study suggests that craniopharyngioma subtype does not appear to be associated with differing risks of postoperative complications, although the sample size may limit the study's findings. [Extracted from the article]
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- 2024
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7. Intraoperative Visual Evoked Potential and Electroretinographic Monitoring During Endoscopic Transsphenoidal Surgery.
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Hong, Christopher, Omara, Chady, Sarkar, Sauradeep, Balagurunath, John Kilgallon Kaasinath, Aglio, Linda, Corrales, Carleton, Nair, Dinesh, and Smith, Timothy
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VISUAL evoked potentials ,ENDOSCOPIC surgery ,EVOKED potentials (Electrophysiology) ,NEUROPHYSIOLOGIC monitoring ,SPHENOID sinus - Abstract
This article discusses the feasibility and utility of monitoring intraoperative visual evoked potentials (VEPs) during endoscopic transsphenoidal surgery. The study reviewed 50 patients undergoing this surgery and found that a robust VEP signal was recorded in 73.3% of eyes. The authors recommend using intravenous anesthesia for reliable signal generation and suggest that VEP monitoring may be most helpful during tumor resection near the optic chiasm. The study concludes that intraoperative VEP monitoring is feasible and safe, with no complications or new visual deficits postoperatively. [Extracted from the article]
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- 2024
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8. β-Lactams plus doxycycline versus azithromycin for treatment of severe community-acquired pneumonia in critically ill patients.
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Kinney, Alexandra Greco, Scherrer, Nicole Kovacic, Sarkar, Sauradeep, Jain, Pranav, Wen, Sijin, and Hadique, Sarah
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COMMUNITY-acquired pneumonia ,AZITHROMYCIN ,DOXYCYCLINE ,CRITICALLY ill ,LACTAMS ,CLOSTRIDIOIDES difficile - Abstract
Objectives Community-acquired pneumonia (CAP) is a significant source of hospital admissions and mortality. Atypical organisms are implicated in up to 40% of cases of CAP diagnoses. We studied the difference in outcomes of severe CAP patients treated with doxycycline versus azithromycin in addition to β-lactam therapy. Patients and methods This was a prospective observational cohort study from March 2020 to July 2022 in a medical ICU (MICU) of an academic quaternary medical center. Adults ≥18 years admitted to the MICU receiving doxycycline or azithromycin in addition to β-lactam therapy for the treatment of CAP were included for analysis. The primary outcomes were in-hospital and 30 day mortality. Secondary outcomes were ICU and hospital length-of-stay, 30 day readmission, days of mechanical ventilation, escalation and duration of antibiotics, adverse effects such as Clostridioides difficile infection and QTc prolongation. Results Sixty-three patients were in the azithromycin group and eighty-six patients in the doxycycline group. Both groups had similar APACHE IV and CURB-65 scores. The mean Charlson Comorbidity Index score was higher for the doxycycline group compared with the azithromycin group (P = 0.04). There was no statistically significant difference in in-hospital and 30 day mortality between the groups (P = 0.53, P = 0.57). There were no significant differences in any of the secondary outcomes. Conclusions MICU patients with severe CAP who received doxycycline versus azithromycin in addition to β-lactam treatment showed no significant differences in outcomes. These data offer support for inclusion of doxycycline as an alternative regimen in current IDSA recommendations. [ABSTRACT FROM AUTHOR]
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- 2023
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9. Climate Change for the Pulmonologist: A Focused Review.
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Balakrishnan, Bathmapriya, Callahan, Sean J., Cherian, Sujith V., Subramanian, Abirami, Sarkar, Sauradeep, Bhatt, Nitin, and Scholand, Mary-Beth
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CLIMATE change ,MEDICAL personnel ,AIR pollution ,EARTH temperature ,LUNG diseases - Abstract
Climate change adversely impacts global health. Increasingly, temperature variability, inclement weather, declining air quality, and growing food and clean water supply insecurities threaten human health. Earth's temperature is projected to increase up to 6.4 °C by the end of the 21st century, exacerbating the threat. Public and health care professionals, including pulmonologists, perceive the detrimental effects of climate change and air pollution and support efforts to mitigate its effects. In fact, evidence is strong that premature cardiopulmonary death is associated with air pollution exposure via inhalation through the respiratory system, which functions as a portal of entry. However, little guidance is available for pulmonologists in recognizing the effects of climate change and air pollution on the diverse range of pulmonary disorders. To educate and mitigate risk for patients competently, pulmonologists must be armed with evidence-based findings of the impact of climate change and air pollution on specific pulmonary diseases. Our goal is to provide pulmonologists with the background and tools to improve patients' health and to prevent adverse outcomes despite climate change-imposed threats. In this review, we detail current evidence of climate change and air pollution impact on a diverse range of pulmonary disorders. Knowledge enables a proactive and individualized approach toward prevention strategies for patients, rather than merely treating ailments reactively. [ABSTRACT FROM AUTHOR]
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- 2023
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10. ISOLATED NODULAR PULMONARY AMYLOIDOSIS IN A PATIENT OF SJOGREN'S DISEASE.
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SARKAR, SAURADEEP, DESKINS, SETH, BORKOWSKI, NICHOLAS, and AHMED, HAROON
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- 2024
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11. Upfront adjuvant irradiation versus postoperative surveillance following incomplete surgical resection of craniopharyngiomas in children and young adults.
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Sarkar, Sauradeep, Korula, Sophy, Mathai, Sarah, Simon, Anna, Balakrishnan, Rajesh, Backianathan, Selvamani, and Chacko, Ari G.
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RADIOTHERAPY ,YOUNG adults ,CRANIOPHARYNGIOMA ,SURGICAL excision ,IRRADIATION ,LINEAR accelerators - Abstract
Objective: Incomplete surgical removal of craniopharyngiomas frequently results in suboptimal oncological control. Radiation therapy is usually offered in these cases to prevent local recurrence of disease; however, the efficacy of radiation is limited by its potential adverse effect, particularly in younger patients. This study was undertaken to compare long-term outcomes and rates of postoperative obesity and endocrinopathy in patients undergoing either upfront adjuvant radiation after surgery, or postoperative surveillance with progression-contingent intervention. Methods: Thirty-seven patients aged <25 years who had undergone primary incomplete surgical resection of craniopharyngiomas were retrospectively identified and categorized according to the prescribed treatment strategy. Recurrence rates, functional status, neuro-ophthalmologic, and endocrine outcomes were studied in both groups of patients. Results: Twenty-three patients received upfront adjuvant radiation, and 14 patients underwent postoperative surveillance. Adjuvant radiation in the former group was delivered using either conventional (n=10), 3D-conformal (n=4), or fractionated stereotactic (n=9) techniques using a linear accelerator. The mean follow-up duration was 64.7 months (range 14–134 months). Disease progression was significantly higher in patients undergoing surveillance as compared to those undergoing upfront adjuvant radiation (71.4 versus 17.4%; p=0.002). Median progression-free survival times were 129 months and 27 months in the upfront adjuvant radiation and surveillance groups, respectively (p=0.007). In patients undergoing surveillance, 50% ultimately required irradiation, and the median radiation-free survival time in this subgroup was 57 months. Two children in the adjuvant radiation group developed asymptomatic radiation-related vasculopathies on follow-up; however, there were no statistically significant differences between the two groups in terms of visual, functional, or pituitary-hypothalamic function at last follow-up. Conclusions: In comparison to upfront adjuvant radiation following incomplete craniopharyngioma resection significantly, a strategy of postoperative surveillance resulted in less durable disease control but allowed radiation therapy to be delayed by a median time of 57 months, without significant detriment to global functional, visual, and neuro-endocrinological outcomes. The merits and demerits of either strategy should be carefully considered in the post-surgical management of these patients. [ABSTRACT FROM AUTHOR]
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- 2022
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12. Telomerase Reverse Transcriptase Promoter Mutations in A Cohort Of Adult Gliomas - Clinicopathological Correlates.
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Balakumar, Shailaja, Pai, Rekha, Chacko, Ari, Patel, Bimal, Nancy, Rachel, Balakrishnan, Rajesh, Sarkar, Sauradeep, Sampath, Gowri, Chacko, Geeta, and Chacko, Ari G
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GENETIC mutation ,GLIOMAS ,PROGNOSIS ,BRAIN tumors ,TRANSFERASES ,GENES ,OXIDOREDUCTASES - Abstract
Background: Introduction: Gliomas were previously classified histologically, although now the latest WHO classification incorporates several molecular markers to classify these. Detection of TERT promoter mutations is assuming increased importance due to its relevance to prognostication.Objective: : The aim of this study was to determine the frequency of TERT promoter mutations, association of TERT promoter mutations with other molecular alterations and to assess the role of TERT promoter mutations in overall survival and progression-free survival in relation to histological and molecular glioma subtypes.Materials and Methods: This study analyzed a cohort of 107 adult patients with diffuse gliomas, WHO grades II and III and glioblastoma, by immunohistochemistry for IDH and ATRX mutations, FISH for 1p/19q co-deletions and PCR sequencing for TERT promoter mutation. Further, five glioma molecular sub-groups were derived using three molecular alteration and included the sub-groups with: i) IDH mutations only, ii) IDH and TERT mutations only, iii) IDH and 1p/19q co-deletion only, iv) Triple negative, and v) Triple positive.Results: IDH mutations and 1p/19q co-deletions were individually and significantly associated with an improved progression free (P = 0.001 and P = 0.002, respectively) and overall survival (P = 0.000 and P = 0.005, respectively) in the present cohort of gliomas. TERT promoter mutations occurred frequently in anaplastic oligodendrogliomas (94%), oligodendrogliomas (87.5%) and glioblastomas (54%). Sub-division into molecular sub-groups showed that the triple-positive tumors carried the best prognosis, followed by IDH only, triple negative and finally the TERT mutation only tumors (P < 0.000).Conclusion: : This indicates that sub-classification using these molecular markers separates tumors into prognostically relevant categories. [ABSTRACT FROM AUTHOR]- Published
- 2022
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13. Risk factors for pre-operative functional deterioration in children with lipomyelomeningocele.
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Sarkar, Sauradeep, Vora, Tarang K., and Rajshekhar, Vedantam
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PREOPERATIVE risk factors ,MYELOMENINGOCELE ,MAGNETIC resonance imaging ,CLINICAL deterioration ,REGRESSION analysis ,SURVIVAL rate ,PEDIATRIC surgery - Abstract
Purpose: To characterize the temporal profile of pre-operative deterioration in children with lipomyelomeningocele (LMMC) including those with congenital deficits and identify risk factors for clinical worsening. Methods: Records of 87 children who underwent surgery for LMMC were retrospectively reviewed to study the temporal profile of pre-operative deterioration, defined by the onset of new neurological dysfunction or progression of a pre-existing deficit. Preoperative magnetic resonance imaging (MRI) studies were examined to identify radiological features associated with deterioration. In children with extra-spinal placodes, the angle subtended by the terminal placode with the cord at the level of the laminar-fascial defect ("J sign") was assessed. Results: Pre-operative deterioration in function was seen in 37 children (43%), occurring at a median age of 36 months and was more frequent in children without congenital deficits (54% versus 27%; p = 0.016). On Cox regression analysis, extra-spinal location of the placode (p = 0.003) and presence of a congenital deficit (p = 0.009) were positively and negatively associated with deterioration respectively. On Kaplan–Meier analysis, the median deterioration-free survival time was 72 months and was positively associated with presence of congenital deficit (p = 0.026) and negatively associated with presence of an extra-spinal placode (p < 0.001) or a meningocele sac (p = 0.001). Conclusion: Extra-spinal location of the neural placode was associated with higher risk of clinical deterioration in children with LMMC, whereas the presence of a congenital deficit conferred a decreased risk. Risk stratification based on clinical and radiological features can be used to guide decisions regarding early prophylactic surgery in children with LMMC. [ABSTRACT FROM AUTHOR]
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- 2022
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14. A clinicoradiological analysis of silent corticotroph adenomas after the introduction of pituitary-specific transcription factors.
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Goyal-Honavar, Abhijit, Sarkar, Sauradeep, Asha, H. S., Kapoor, Nitin, Balakrishnan, Rajesh, Vanjare, Harshad, Chacko, Geeta, and Chacko, Ari G.
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ADENOMA ,TRANSCRIPTION factors ,PITUITARY tumors ,FACTOR analysis ,GENDER - Abstract
Background: Silent corticotroph adenomas (SCAs) are a rare subtype of non-functional pituitary adenoma. While it has been suggested that they are more aggressive and recur more frequently following excision, there is limited literature on the optimum treatment strategy for these tumors, especially regarding the role of radiation therapy in incompletely resected tumors. Method: We assimilated data from 62 SCAs and 238 other non-functional adenomas (ONAs), defined according to the WHO 2017 criteria that incorporates transcription factor analysis. We compared their clinicoradiological characteristics, such as hormonal levels, tumor configuration, size, and invasiveness. For 52 SCAs and 205 ONAs with serial follow-up imaging, we studied outcomes for progression after subtotal resection with or without radiation therapy or recurrence after gross total resection. Kaplan Meier analysis for recurrence or progression was used to determine the need for a differential treatment strategy for SCAs compared with other non-functional adenomas specifically concerning the role of radiotherapy. Results: Patients with SCAs present at a younger age than ONAs (43.9 years vs. 48.2 years, p = 0.014), with larger (14.9 cc vs. 9.7 cc, p = 0.006) and more invasive adenomas (61.2% vs. 45.8%, p = 0.021). Overall, SCAs are more likely to recur or progress (48.7 vs. 15.7%, p < 0.001) following excision than ONAs, with significantly poorer event-free survival (Log rank test p < 0.001). Early adjuvant radiotherapy provides favorable outcomes among SCAs with postoperative residual tumor, on par with ONAs. Multivariate analysis identified male gender (HR: 2.217; p = 0.017), MIB index ≥ 3% (HR: 2.116; p = 0.012), and SCA tumor pathology (HR: 3.787; p < 0.001) as factors predicting recurrence. Conclusions: Based on the results of this retrospective, single-center review of 300 non-functional adenomas, we conclude that silent corticotroph adenomas are an aggressive subtype of non-functional pituitary adenomas that are larger, more likely to be invasive, and tend to recur more frequently after a subtotal excision compared with other non-functional adenomas. A gross total resection must be attempted whenever possible and earlier adjuvant radiation is recommended when re-surgery for residual tumor is difficult. [ABSTRACT FROM AUTHOR]
- Published
- 2021
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15. Long-term outcomes following maximal safe resection in a contemporary series of childhood craniopharyngiomas.
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Sarkar, Sauradeep, Chacko, Shireen R., Korula, Sophy, Simon, Anna, Mathai, Sarah, Chacko, Geeta, and Chacko, Ari George
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DIABETES insipidus ,PEDIATRIC surgery ,SURVIVAL analysis (Biometry) ,CRANIOPHARYNGIOMA ,PREVENTIVE medicine - Abstract
Background: The optimal management of pediatric craniopharyngiomas remains controversial. This study aimed to characterize long-term outcomes in a contemporary cohort of children undergoing surgery for craniopharyngiomas. Methods: This was a retrospective review of 37 consecutive children who underwent surgery for craniopharyngioma with a median follow-up duration of 79 months (range 5–127 months). Patients were stratified by extent of resection (EOR) and need for adjuvant radiation therapy (RT). Imaging studies were reviewed to grade extent of hypothalamic involvement. Data on functional outcomes, pituitary function, and obesity were analyzed. Results: Gross total resection was achieved in 16 patients (43.2%), near total resection in six patients (16.2%), and subtotal resection (STR) in 15 patients (40.5%). The recurrence-free survival rate was 81.1% and 70.3% at 5- and 10-year follow-up, respectively. Survival analysis showed superior disease control in patients undergoing STR + RT (p = 0.008). Functional outcomes were independent of EOR, postoperative RT or recurrence. Diabetes insipidus was present in 75% and 44.4% of patients required >2 hormone replacements at last follow-up. Obesity was present in 36.1% patients after treatment, and was associated with preoperative obesity (p = 0.019), preoperative hypothalamic involvement (p = 0.047) and STR + RT (p = 0.011). Conclusions: Gross or near total resection may be achieved safely in almost 60% of cases; however, radical surgery does not eliminate the risk of recurrence. Over long-term follow-up, STR + RT offers the best disease control rates. Patients with preoperative hypothalamic involvement, obesity, and those with tumors not amenable to radical resection are at risk for developing obesity on long-term follow-up. [ABSTRACT FROM AUTHOR]
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- 2021
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16. Surgery for Acromegaly.
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Sarkar, Sauradeep, Chacko, Ari, and Chacko, Ari G
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PITUITARY surgery ,SOMATOMEDIN ,ACROMEGALY ,SOMATOTROPIN ,CANCER invasiveness ,SURGERY ,NEUROSURGERY ,ADENOMA ,TREATMENT effectiveness ,PITUITARY tumors ,DISEASE complications - Abstract
Growth hormone (GH) hypersecretion from a pituitary adenoma results in acromegaly, an endocrinological disorder with multiple systemic manifestations that presents several unique challenges in terms of perioperative management and long term outcomes. Current guidelines provide stringent criteria for determining biochemical remission, necessitating an aggressive approach to management. Despite the development of several non-surgical therapies, transsphenoidal surgery, the endoscopic approach in particular, remains the primary line of treatment for rapid normalization of GH and Insulin-like growth factor with a low incidence of perioperative morbidity. Tumor size and invasiveness are important factors predicting surgical outcomes with better rates of postoperative remission seen in smaller and non-invasive tumors. Postoperative remission rates reported in literature with the 2020 consensus criteria vary from 30 to 85% probably reflecting varying prevalence rates of invasive tumors. Thus, a significant proportion of patients fail to achieve remission after surgery for whom treatment options for residual disease must be carefully considered. This review article discusses the surgical management of acromegaly and provides a summary of contemporary outcomes and current treatment controversies. [ABSTRACT FROM AUTHOR]
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- 2020
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17. A randomized controlled trial to determine the role of intraoperative lumbar cerebrospinal fluid drainage in patients undergoing endoscopic transsphenoidal surgery for pituitary adenomas.
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Jonathan, Gandham E., Sarkar, Sauradeep, Singh, Georgene, Mani, Sunithi, Thomas, Regi, and Chacko, Ari George
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PITUITARY tumors ,ADENOMA ,SURGICAL drainage ,CEREBROSPINAL fluid ,LUMBAR vertebrae surgery ,INTRAOPERATIVE care ,RANDOMIZED controlled trials ,THERAPEUTICS ,TUMOR treatment - Abstract
Background: Intraoperative cerebrospinal fluid (CSF) leaks are a frequent cause of morbidity in patients undergoing transsphenoidal surgery. This prospective study was performed to examine the impact of intraoperative lumbar subarachnoid drainage (LSAD) on the incidence of this complication and on the extent of resection in patients undergoing endoscopic transsphenoidal surgery for pituitary adenomas.Materials and Methods: This prospective study was conducted in a single large academic medical center. All patients with pituitary adenomas who had not undergone prior transsphenoidal surgery were eligible for inclusion in the study. Patients were randomly assigned to undergo transsphenoidal surgery with intraoperative lumbar drain insertion (LSAD group) or no lumbar drain insertion (no LSAD group). An otolaryngologist independently determined the occurrence of an intraoperative CSF leak. Extent of tumor resection was determined by volumetric analysis of postoperative magnetic resonance images in patients with nonfunctional tumors or functional adenomas with a large suprasellar component.Results: Sixty patients were eligible for inclusion, of which 30 were assigned to the LSAD group and 30 to the no LSAD group. There were no statistically significant differences in patient demographics, tumor pathology, or radiology between the two groups. The LSAD catheter was successfully inserted in all patients in the LSAD group. Intraoperative CSF drainage significantly reduced the incidence of CSF leak from 46.7% in the no LSAD group to 3.3% in the LSAD group (P < 0.001). However, there were no statistically significant differences in the incidence of postoperative CSF rhinorrhea between the two groups. There were no major catheter-related complications. There was no statistically significant difference in the extent of resection between the two groups.Conclusions: Controlled intraoperative CSF drainage significantly reduces the incidence of intraoperative CSF leakage in patients undergoing endoscopic transsphenoidal surgery for pituitary adenomas. [ABSTRACT FROM AUTHOR]- Published
- 2018
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18. Implications of the World Health Organization definition of atypia on surgically treated functional and non-functional pituitary adenomas.
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Sarkar, Sauradeep, Philip, Vinu, Cherukuri, Sai, Chacko, Ari, and Chacko, Geeta
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ADENOMA ,PITUITARY diseases ,P53 antioncogene ,MITOSIS ,SURGICAL excision ,POSTOPERATIVE care ,DISEASE progression ,PATIENTS ,THERAPEUTICS - Abstract
Background: The World Health Organization (WHO) defines atypical pituitary adenomas as tumours with a MIB-1 labelling index ≥3%, p53 positivity and increased mitotic activity. Although a few reports have described the clinical and radiological correlates of atypia in pituitary adenomas, its impact on postoperative outcomes is not clearly defined. Method: We reviewed preoperative and postoperative records of patients undergoing surgery for pituitary adenomas. Postoperative outcomes for functional adenomas (FPAs) were assessed according to contemporary definitions of remission and recurrence. For non-functional pituitary adenomas (NFPAs), extent of resection and disease progression were defined on the basis of postoperative magnetic resonance imaging. Results: Of 394 patients included for analysis, 29 cases (7.4%) fulfilled criteria for atypia. Patients with atypical tumours were significantly younger than those with typical adenomas. Remission was possible in 47.4% of FPAs, and was unrelated to the presence of atypia. In NFPAs, local invasiveness was negatively associated with extent of resection (OR, 0.255; 95% CI, 0.086-0.753; p < 0.001). In 93 NFPAs followed postoperatively with serial imaging over a mean duration of 37.5 months, disease progression/recurrence was significantly associated with the presence of atypia (OR, 5.058; 95% CI, 1.273-20.098; p = 0.021) on multivariate analysis. Conclusions: Patients with atypical non-functional pituitary adenomas are at risk for postoperative recurrence and disease progression, suggesting a need for adjuvant therapy. However, only a small fraction of pituitary tumours demonstrate atypia, as defined by the WHO, limiting its clinical utility. [ABSTRACT FROM AUTHOR]
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- 2017
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19. Complications following central corpectomy in 468 consecutive patients with degenerative cervical spine disease.
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Sarkar, Sauradeep, Nair, Bijesh R., and Rajshekhar, Vedantam
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- 2016
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20. Pure endoscopic transsphenoidal surgery for functional pituitary adenomas: outcomes with Cushing's disease.
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Sarkar, Sauradeep, Rajaratnam, Simon, Chacko, Geeta, Mani, Sunithi, Hesargatta, Asha, and Chacko, Ari
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CUSHING'S syndrome ,SURGICAL complications ,PARANASAL sinuses ,DEXAMETHASONE ,POSITRON emission tomography - Abstract
Background: This study was performed to examine patient outcomes following pure endoscopic transsphenoidal surgery (ETS) for Cushing's disease (CD). Method: We studied 64 consecutive patients who underwent 69 endoscopic transsphenoidal procedures. Radiological evaluation comprised detailed examination of preoperative magnetic resonance images (MRI), including positron emission tomography (PET) for select cases. Inferior petrosal sinus sampling (IPSS) was not performed for any patient. Remission was defined by the presence of hypocortisolemia with requirement for steroid replacement therapy or eucortisolemia with suppression to <1.8 μg/dl after 1 mg dexamethasone on evaluation at least 3 months after surgery. Results: Preoperative MRI was abnormal in 87.5 % of cases and included 11 macroadenomas (17.2 %). PET was used to localize the adenoma in four cases. For microadenomas, operative procedures executed were as follows: selective adenomectomy (n = 15), enlarged adenomectomy (n = 21) and subtotal/hemihypophysectomy (n = 17). Overall, pathological confirmation of an adenoma was possible in 58 patients (90.6 %). Forty-nine patients (76.6 %) developed hypocortisolemia (<5 μg/dl) in the early postoperative period. Mean follow-up was 20 months (range 6-18 months). Remission was confirmed in 79.7 % of the 59 cases followed up for >3 months and was superior for microadenomas (86.4 %) versus macroadenomas (55.6 %) and equivocal MRI adenomas (66.7 %). Postoperative CSF rhinorrhea occurred in five patients, and new endocrine deficits were noted in 17.1 % patients. A nadir postoperative cortisol <2 μg/dl in the 1st week after surgery was highly predictive of remission (p = 0.001). Conclusion: ETS allows for enhanced intrasellar identification of adenomatous tissue, providing remission rates that are comparable to traditional microsurgery for CD. The best predictor of remission remains induction of profound hypocortisolemia in the early postoperative period. [ABSTRACT FROM AUTHOR]
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- 2016
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21. An analysis of granulation patterns, MIB-1 proliferation indices and p53 expression in 101 patients with acromegaly.
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Sarkar, Sauradeep, Chacko, Ari, and Chacko, Geeta
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ACROMEGALY ,P53 protein ,PROTEIN expression ,CANCER cell proliferation ,PITUITARY tumors ,IMMUNOCYTOCHEMISTRY ,HISTOPATHOLOGY - Abstract
Background: Despite the wide spectrum of adenoma behavior in patients with acromegaly, the ability of most pathological markers to predict clinical and radiological behavior remains controversial. The authors sought to comprehensively examine clinical and radiological correlates of growth hormone (GH)-secreting pituitary adenomas with regard to several commonly used immunocytochemical techniques in patients undergoing transsphenoidal surgery for acromegaly. Method: We performed a retrospective review of histopathological findings in 101 surgically resected GH adenomas. Tumors were assessed radiologically for different patterns of extension. Each tumor specimen was subject to immunocytochemical analysis, including assessments of granulation patterns, MIB-1 labeling indices, prolactin cosecretion, p53 expression and mitotic activity. Endocrinological outcome was assessed in 93 patients, with remission defined by the 2010 consensus criteria. Results: Most tumors were macroadenomas and almost half were invasive. When compared to densely granulated tumors, sparsely granulated adenomas were associated with a younger age at presentation, higher preoperative IGF-1 levels, elevated MIB-1 index and pure GH immunostaining, but did not differ significantly in terms of extrasellar invasion or outcome. Increased mitotic activity and p53 expression were also associated with higher proliferation indices and a younger age at presentation. Mixed GH/prolactin tumors demonstrated significantly higher remission rates, independent of variations in extrasellar growth. MIB-1 indices did not correlate with the preoperative GH/IGF-1 levels, adenoma size or Knosp grade. Conclusion: The pathobiology of acromegaly is complex, and the clinicoradiological significance of subtyping on the basis of the markers employed in this study is debatable. Further investigation of newer molecular markers is warranted. [ABSTRACT FROM AUTHOR]
- Published
- 2014
- Full Text
- View/download PDF
22. Transsphenoidal surgery for acromegaly: predicting remission with early postoperative growth hormone assays.
- Author
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Sarkar, Sauradeep, Jacob, K., Pratheesh, Ravindran, and Chacko, Ari
- Subjects
ACROMEGALY ,BONE diseases ,SOMATOTROPIN ,PITUITARY surgery ,DISEASE remission ,LOGISTIC regression analysis - Abstract
Background: Early detection of residual disease may benefit management strategies in patients undergoing transsphenoidal surgery for acromegaly. This requires establishing objective thresholds for early postoperative growth hormone (GH) assays, and incorporating these parameters into a scale for outcome prediction. Method: We analyzed a database containing the records of 86 patients who had undergone gross total transsphenoidal resection of GH-secreting pituitary adenomas. Early postoperative biochemical testing included a morning fasting basal GH assay on the first postoperative day (POD1) and a second GH assay following suppression with 100 g of oral glucose on the seventh postoperative day (POD7). Remission was defined as a normal IGF-1 with either a GH nadir <0.4 ng/ml following suppression with oral glucose or a basal fasting GH <1 ng/ml on follow-up dated >3 months after surgery. Receiver operator characteristic (ROC) curves identified optimal thresholds for all biochemical parameters. Logistic regression analysis assessed the statistical significance of factors associated with cure. A point system was developed, employing regression coefficients obtained from the multivariate statistical model to quantify the impact of each predictor on cure. Results: Remission was achieved in 34.6 % of patients and was associated with smaller, non-invasive tumors with lower preoperative, POD1 and POD7 GH levels. Optimal thresholds obtained from the ROC analysis suggested that lower POD1 and POD7 GH values provided good sensitivity and specificity for cure, despite modest predictive values. The model with the best ability to predict outcome included size, POD1 GH and POD7 GH levels, with a score of ≥95 demonstrating high specificity for prediction of remission. Conclusion: Early postoperative GH assays are highly sensitivity and specific. The scoring system that we propose provided excellent predictive value and requires further validation in larger cohorts and in different populations. The model may help guide the intensity of follow-up and enable early identification of residual disease. [ABSTRACT FROM AUTHOR]
- Published
- 2014
- Full Text
- View/download PDF
23. Clinical and radiological outcomes in 153 patients undergoing oblique corpectomy for cervical spondylotic myelopathy.
- Author
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Chacko, Ari G., Turel, Mazda K., Sarkar, Sauradeep, Prabhu, Krishna, and Daniel, Roy T.
- Subjects
CERVICAL spondylotic myelopathy ,MEDICAL imaging systems ,BLOOD-vessel abnormalities ,MAGNETIC resonance imaging ,CERVICAL syndrome ,KYPHOSIS patients ,DIAGNOSIS ,BLOOD disease treatment - Abstract
Objective. To document the clinical and radiological outcomes in a large series of patients undergoing the oblique cervical corpectomy (OCC) for spondylotic myelopathy. Materials and methods. We retrospectively analyzed our series of 153 patients undergoing OCC for cervical spondylotic myelopathy (CSM) over the last 10 years. A mean clinical follow-up of 3 years was obtained in 125 patients (81.7%), while 117 patients (76.5%) were followed up radiologically. Neurological function was measured by the Nurick grade and the modified Japanese Orthopedic Association score (JOA). Plain radiographs and magnetic resonance images (MRI) were reviewed. Results. Ninety-two percent were men with a mean age of 51 years and a mean duration of symptoms of 18 months. Sixty-one had a single level corpectomy, 66 had a 2-level, 24 had a 3-level, and two had a 4-level OCC. There was statistically significant improvement (p < 0.05) in both the Nurick grade and the JOA score at mean follow-up of 34.6 ± 25.4 months. Permanent Horner's syndrome was seen in nine patients (5.9%), postoperative C5 radiculopathy in five patients (3.3%), dural tear with CSF leak in one patient (0.7%), and vertebral artery injury in one patient (0.7%). Of the 117 patients who were followed up radiologically, five patients (4.3%) developed an asymptomatic kyphosis of the cervical spine while 22 patients (25.6%) with preoperative lordotic spines had a straightening of the whole spine curvature. Conclusions. The OCC is a safe procedure with good outcomes and a low morbidity for treating cervical cord compression due to CSM. This procedure avoids graft-related complications associated with the central corpectomy, but is technically demanding. [ABSTRACT FROM AUTHOR]
- Published
- 2014
- Full Text
- View/download PDF
24. Reduction in range of cervical motion on serial long-term follow-up in patients undergoing oblique corpectomy for cervical spondylotic myelopathy.
- Author
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Turel, Mazda, Sarkar, Sauradeep, Prabhu, Krishna, Daniel, Roy, Jacob, K., and Chacko, Ari
- Subjects
CERVICAL spondylotic myelopathy ,CERVICAL vertebrae diseases ,POSTERIOR longitudinal ligament ossification ,LORDOSIS ,SPINAL fusion ,FOLLOW-up studies (Medicine) ,DIAGNOSIS ,PATIENTS ,THERAPEUTICS - Abstract
Purpose: To determine whether motion preservation following oblique cervical corpectomy (OCC) for cervical spondylotic myelopathy (CSM) persists with serial follow-up. Methods: We included 28 patients with preoperative and at least two serial follow-up neutral and dynamic cervical spine radiographs who underwent OCC for CSM. Patients with an ossified posterior longitudinal ligament (OPLL) were excluded. Changes in sagittal curvature, segmental and whole spine range of motion (ROM) were measured. Nathan's system graded anterior osteophyte formation. Neurological function was measured by Nurick's grade and modified Japanese Orthopedic Association (JOA) scores. Results: The majority (23 patients) had a single or 2-level corpectomy. The average duration of follow-up was 45 months. The Nurick's grade and the JOA scores showed statistically significant improvements after surgery ( p < 0.001). 17 % of patients with preoperative lordotic spines had a loss of lordosis at last follow-up, but with no clinical worsening. 77 % of the whole spine ROM and 62 % of segmental ROM was preserved at last follow-up. The whole spine and segmental ROM decreased by 11.2° and 10.9°, respectively ( p ≤ 0.001). Patients with a greater range of segmental movement preoperatively had a statistically greater range of movement at follow-up. The analysis of serial radiographs indicated that the range of movement of the whole spine and the range of movement at the segmental spine levels significantly reduced during the follow-up period. Nathan's grade showed increase in osteophytosis in more than two-thirds of the patients ( p ≤ 0.01). The whole spine range of movement at follow-up significantly correlated with Nathan's grade. Conclusions: Although the OCC preserves segmental and whole spine ROM, serial measurements show a progressive decrease in ROM albeit without clinical worsening. The reduction in this ROM is probably related to degenerative ossification of spinal ligaments. [ABSTRACT FROM AUTHOR]
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- 2013
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- View/download PDF
25. Rivaroxaban-induced hemorrhagic pericardial tamponade in end-stage renal disease.
- Author
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Rapista, Nicole, Sarkar, Sauradeep, and Chaudhary, Rahul
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- 2020
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26. ONE SIZE DOES NOT FIT ALL: FAILED TB THERAPY?
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Sarkar, Sauradeep, Kaur, Ashampreet, Gupta, Ishaan, Rowe, Steven, Epelbaum, Oleg, and Singh, Amteshwar
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TUBERCULOSIS ,EPIDURAL space ,DRUG resistance in microorganisms ,DRUG side effects ,MYCOBACTERIUM tuberculosis ,SPINAL tuberculosis - Published
- 2020
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27. Radiation-induced opticochiasmatic glioblastoma multiforme following conventional radiotherapy for Cushing's disease.
- Author
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Sarkar, Sauradeep, Rajaratnam, Simon, Backianathan, Selvamani, Chacko, Geeta, and Chacko, Ari George
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RADIOTHERAPY ,CUSHING'S syndrome ,GLIOBLASTOMA multiforme ,RADIATION ,MEDICAL equipment - Abstract
We report the rare occurrence of an opticochiasmatic glioblastoma multiforme 6 years following conventional radiotherapy for Cushing's disease. This article highlights the risks of collateral damage to the optic apparatus when irradiating the sellar region. [ABSTRACT FROM AUTHOR]
- Published
- 2014
- Full Text
- View/download PDF
28. A rare case of a giant tentorial bicompartmental cystic schwannoma unrelated to the cranial nerves.
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Abraham, Ananth, Sarkar, Sauradeep, Mannam, Pavithra, Chacko, Geeta, Chacko, Ari, Abraham, Ananth P, and Chacko, Ari G
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CRANIAL nerves ,SCHWANNOMAS ,TUMORS in children - Abstract
The article presents a case study of 35‑year old woman presented with headache and vomiting followed by gait ataxia. It reports the diagnosis of giant tentorial bicompartmental cystic schwannoma unrelated to the cranial nerves from histopathology evaluation; and mentions about Schwannomas which is considered in the differential diagnoses of tentorial tumor.
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- 2019
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29. USING BOVA SCORE AS A GUIDE FOR TREATMENT OF SUBMASSIVE PULMONARY EMBOLISM.
- Author
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Sarkar, Sauradeep, Rapista, Nicole, and Jean, Lee-Gardie
- Subjects
PULMONARY embolism ,TISSUE plasminogen activator - Published
- 2020
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30. UTILIZATION OF THE ROTHMAN INDEX AS A PREDICTOR OF ICU RECIDIVISM.
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Munawar, Immad, Sarkar, Sauradeep, D'Adamo, Christopher, and Ogundele, Olufunmilayo
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RECIDIVISM - Published
- 2020
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31. CORONA VIRUS DISEASE-19-INDUCED ACUTE LIVER FAILURE LEADING TO SEVERE METABOLIC ACIDOSIS.
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Sarkar, Sauradeep, Rapista, Nicole, and Jean, Lee-Gardie
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LIVER failure ,ACIDOSIS ,COVID-19 ,VIRAL hepatitis - Published
- 2020
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32. MEAN ARTERIAL PRESSURE GOAL IN CRITICALLY ILL MEDICAL PATIENTS: A METANALYSIS OF RANDOMIZED CONTROLLED TRIALS.
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Sarkar, Sauradeep, Singh, Sahib, and Rout, Amit
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RANDOMIZED controlled trials ,CRITICALLY ill ,INTENSIVE care units - Published
- 2020
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33. ROLE OF VITAMIN D SUPPLEMENTATION IN CRITICALLY ILL PATIENTS: AN UPDATED META-ANALYSIS OF RANDOMIZED CONTROLLED TRIALS.
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Singh, Sahib, Rout, Amit, and Sarkar, Sauradeep
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VITAMIN D ,RANDOMIZED controlled trials ,CRITICALLY ill ,LENGTH of stay in hospitals ,META-analysis - Published
- 2020
- Full Text
- View/download PDF
34. CLINICAL INDICATORS OF MORTALITY FOR CORONAVIRUS DISEASE 2019 IN AN URBAN HOSPITAL IN BALTIMORE.
- Author
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Rapista, Nicole, Sarkar, Sauradeep, Singh, Sahib, Yalamanchili, Shashi, D'Adamo, Christopher, and Jean, Lee-Gardie
- Subjects
COVID-19 ,URBAN hospitals ,NUCLEIC acid amplification techniques ,MORTALITY - Published
- 2020
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35. Long-Term Sustainability of Functional Improvement Following Central Corpectomy for Cervical Spondylotic Myelopathy and Ossification of Posterior Longitudinal Ligament.
- Author
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Sarkar, Sauradeep and Rajshekhar, Vedantam
- Published
- 2018
- Full Text
- View/download PDF
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