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Dive into the research topics where Michael J. Sylvester is active.

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Featured researches published by Michael J. Sylvester.


Laryngoscope | 2017

Arterial ligation versus embolization in epistaxis management: Counterintuitive national trends

Michael J. Sylvester; Sei Y. Chung; Luis A. Guinand; Aparna Govindan; Soly Baredes; Jean Anderson Eloy

Arterial ligation and embolization are treatment modalities indicated in severe and refractory epistaxis. The purpose of this study was to examine temporal trends and compare outcomes in treatment of hospitalized epistaxis patients with ligation or embolization.


Laryngoscope | 2017

Impact of chronic obstructive pulmonary disease on patients undergoing laryngectomy for laryngeal cancer

Michael J. Sylvester; Emily Marchiano; Richard Chan Woo Park; Soly Baredes; Jean Anderson Eloy

Although chronic obstructive pulmonary disease (COPD) is a common comorbidity in patients undergoing laryngeal cancer surgery, the impact of this comorbidity in this setting is not well established. In this analysis, we used the Nationwide Inpatient Sample (NIS) to elucidate the impact of COPD on outcomes after laryngectomy for laryngeal cancer.


Laryngoscope | 2017

Malignant otitis externa hospitalizations: Analysis of patient characteristics.

Michael J. Sylvester; Saurin Sanghvi; Viral M. Patel; Jean Anderson Eloy; Yu-Lan Mary Ying

Malignant otitis externa (MOE) is a rare disorder that is not well studied in the inpatient setting. The Nationwide Inpatient Sample (NIS) database was utilized to analyze characteristics and predischarge outcomes of hospitalized MOE patients.


Biology of Blood and Marrow Transplantation | 2017

In-Hospital Mortality and Post-Transplantation Complications in Elderly Multiple Myeloma Patients Undergoing Autologous Hematopoietic Stem Cell Transplantation: A Population-Based Study

Larysa Sanchez; Michael J. Sylvester; Ricardo Daniel Parrondo; Veronica Mariotti; Jean Anderson Eloy; Victor T. Chang

Autologous hematopoietic stem cell transplantation (auto-HSCT) has improved survival in patients with multiple myeloma (MM) and is increasingly used in elderly patients. The aim of this study was to characterize and compare in-hospital complications and mortality after auto-HSCT in younger (< age 65) versus elderly (> age 65) MM patients utilizing the Nationwide Inpatient Sample. Over a 3-year period (2008 to 2010), 2209 patients with MM were admitted to US hospitals for auto-HSCT. The median age was 59 years, with 1650 patients (74.7%) younger than age 65 and 559 patients (25.3%) 65 or older. Overall, in-hospital mortality in MM patients after auto-HSCT was rare (1.5%) and there was no significant difference in mortality between elderly and younger patients. Elderly patients did have a significantly increased mean length of stay (18.6 days + 10.8 days [SD] versus 16.8 days + 7.2 days [SD], P < .001) and mean total hospital charges (


Neurosurgical Focus | 2018

Unruptured aneurysms in the elderly: perioperative outcomes and cost analysis of endovascular coiling and surgical clipping

Nicole A. Silva; Belinda Shao; Michael J. Sylvester; Jean Anderson Eloy; Chirag D. Gandhi

161,117 + 


Laryngoscope | 2018

Impact of obstructive sleep apnea in transsphenoidal pituitary surgery: An analysis of inpatient data

Sei Y. Chung; Michael J. Sylvester; Varesh R. Patel; Michael Zaki; Soly Baredes; James K. Liu; Jean Anderson Eloy

105,008 [SD] versus


Otolaryngology-Head and Neck Surgery | 2017

Outcomes of Vestibular Schwannoma Surgery among the Elderly: Analysis of the National Inpatient Sample

Michael J. Sylvester; Darshan Shastri; Viral M. Patel; Milap D. Raikundalia; Jean Anderson Eloy; Soly Baredes; Yu-Lan Mary Ying

151,192 + 


American Journal of Rhinology & Allergy | 2018

To Pack or Not to Pack: Inpatient Management of Epistaxis in the Elderly

Albert H. Zhou; Sei Y. Chung; Michael J. Sylvester; Michael Zaki; Peter S. Svider; Wayne D. Hsueh; Soly Baredes; Jean Anderson Eloy

78,342 [SD] , P = .018) compared with younger patients. Elderly patients were significantly more likely than younger patients to develop major in-hospital post-transplantation complications such as severe sepsis (odds ratio [OR], 2.70; 95% confidence interval [CI], 1.40 to 5.21; P = .003), septic shock (OR, 3.10; 95% CI, 1.43 to 6.71; P = .004), pneumonia (OR, 1.62; 95% CI, 1.06 to 2.46; P = .024), acute respiratory failure (OR, 3.44; 95% CI, 1.70 to 6.96; P = .001), endotracheal intubation requiring prolonged mechanical ventilation (OR, 2.19; 95% CI, 1.06 to 4.55; P = .035), acute renal failure (OR, 2.14; 95% CI, 1.38 to 3.33; P = .001), and cardiac arrhythmias (OR, 2.06; 95% CI, 1.52 to 2.79; P <.001). These data may help guide informed consent discussions and provide a focus for future studies to reduce treatment-related morbidity in elderly MM patients undergoing auto-HSCT.


Laryngoscope | 2017

Impact of liver disease on outcomes of patients hospitalized for epistaxis

Omar Mohamed; Aparna Govindan; Andrey Filimonov; Michael J. Sylvester; Michael Zaki; Soly Baredes; Jean Anderson Eloy

OBJECTIVE Observation and neurosurgical intervention for unruptured intracranial aneurysms (UIAs) in the elderly population is rapidly increasing. Cerebral aneurysm coiling (CACo) is favored over cerebral aneurysm clipping (CAC) in elderly patients, yet some elderly individuals still undergo CAC. The cost-effectiveness of treating UIAs requires further exploration. Understanding the effect of intervention on hospital charges and length of stay (LOS) as well as perioperative mortality and complications can further shed light on its economic impact. The purpose of this study was to analyze the cost and perioperative outcomes of UIAs in elderly patients (≥ 65 years of age) after CACo or CAC intervention. METHODS Retrospective cohorts of CACo and CAC admissions were extracted from National (Nationwide) Inpatient Sample data obtained between 2002 and 2013, forming parallel intervention groups to compare the following outcomes between elderly and nonelderly patients: average LOS and mean hospital admission costs, in-hospital mortality, and complications. Covariates included sex, race or ethnicity, and comorbidities. RESULTS Elderly patients undergoing CAC experienced an average LOS of 8.0 days, whereas elderly patients undergoing CACo stayed an average of 3.2 days. The mean hospital charges incurred during admission totaled


Journal of Clinical Oncology | 2016

Post-gastrectomy complications and mortality in elderly patients with gastric cancer: A population-based study.

Larysa Sanchez; Michael J. Sylvester; Shijia Zhang; Veronica Mariotti; Narjust Duma; Yucai Wang; Ricardo Daniel Parrondo; Jean Anderson Eloy; Martin Gutierrez

95,960 in the elderly patients who underwent CAC versus

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