Vishnu Ambur

ORCID: 0000-0003-2257-7970
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About
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Research Areas
  • Transplantation: Methods and Outcomes
  • Mechanical Circulatory Support Devices
  • Cardiac Arrest and Resuscitation
  • Tracheal and airway disorders
  • Gallbladder and Bile Duct Disorders
  • Renal Transplantation Outcomes and Treatments
  • Organ Transplantation Techniques and Outcomes
  • Cardiac Structural Anomalies and Repair
  • Medical Imaging and Pathology Studies
  • Vascular Procedures and Complications
  • Peripheral Artery Disease Management
  • Cardiac, Anesthesia and Surgical Outcomes
  • Cardiac Valve Diseases and Treatments
  • Clinical Nutrition and Gastroenterology
  • Cardiac and Coronary Surgery Techniques
  • Infective Endocarditis Diagnosis and Management
  • Healthcare Policy and Management
  • Cytomegalovirus and herpesvirus research
  • Polyomavirus and related diseases
  • Surgical site infection prevention
  • Respiratory Support and Mechanisms
  • Renal and Vascular Pathologies
  • Aortic Thrombus and Embolism
  • Orthopedic Infections and Treatments
  • Hip and Femur Fractures

Cleveland Clinic
2019-2022

Temple University Hospital
2015-2018

Temple University
2015-2017

Yale University
2016

ObjectivePatient selection for open lower extremity revascularization in patients with chronic kidney disease (CKD) remains a clinical challenge. This study investigates the impact of CKD on early graft failure, postoperative complications, and mortality undergoing bypass critical limb ischemia.MethodsThe National Surgical Quality Improvement Program database was queried all ischemia from 2012 to 2015 who underwent using targeted vascular set. The glomerular filtration rate calculated...

10.1016/j.jvs.2018.05.229 article EN publisher-specific-oa Journal of Vascular Surgery 2018-08-25

As left ventricular assist devices (LVADs) are increasingly used for patients with end-stage heart failure, the need noncardiac surgical procedures (NCSs) in these will continue to rise. We examined various types of NCS required and its outcomes LVAD requiring NCS. The National Inpatient Sample Database was all implanted an from 2007 2010. Patients after implantation were compared other receiving LVAD. There 1,397 undergoing implantation. Of these, 298 (21.3%) 459 153 (33.3%) general surgery...

10.1097/mat.0000000000000366 article EN ASAIO Journal 2016-03-19

We attempted to determine if transplants of lungs from diabetic donors (DDs) is associated with increased mortality recipients in the modern era lung allocation score (LAS).The United Network for Organ Sharing (UNOS) database was queried all adult transplant 2006 2014. Patients receiving a DD were compared those non-DD. Multivariate Cox regression analysis using variables used examine survival.A total 13 159 performed between January and June 2014: 4278 (32.5%) single-lung (SLT) 8881 (67.5%)...

10.1093/ejcts/ezw314 article EN European Journal of Cardio-Thoracic Surgery 2016-10-04

Spray cryotherapy (SCT), the application of liquid nitrogen in a noncontact form, has been demonstrated to have efficacy treating various types pathologic lesions airway when used as an adjunct with bronchoscopy. The purpose study was evaluate results use bronchoscopic SCT on single institution.We performed retrospective review data collected all patients who underwent re-establish or improve patency 11-month period. Patients were classified based nature their disease into benign malignant....

10.1097/imi.0000000000000298 article EN Innovations Technology and Techniques in Cardiothoracic and Vascular Surgery 2016-09-01

Impaired wound healing due to immunosuppression has led some surgeons preferentially use open gastrostomy tube (OGT) over percutaneous (PEG) in heart transplant patients when long-term enteral access is deemed necessary.The National Inpatient Sample (NIS) database (2005-2010) was queried for all patients. Those receiving OGT were compared those treated with PEG tube.There 498 requiring a tube, 424 (85.2%) and 74 (14.8%) an OGT. The cohort had higher Charlson comorbidity Index (4.1 vs. 2.0, p...

10.1016/j.amsu.2016.03.023 article EN Annals of Medicine and Surgery 2016-03-19

Lung transplant patients require a high degree of immunosuppression, which can impair wound healing when surgical procedures are required. We hypothesized that because impaired healing, lung requiring gastrostomy tubes would have better outcomes with open tube (OGT) as compared to percutaneous endoscopic (PEG).The National Inpatient Sample (NIS) Database (2005-2010) was queried for all recipients OGT or PEG.There were 215 tube, 44 and 171 PEG. The two groups not different respect age (52.0...

10.1016/j.amsu.2015.12.056 article EN Annals of Medicine and Surgery 2015-12-23

Introduction. Surgical site infection (SSI) of groin incisions after vascular surgery is a significant source morbidity and associated with high rates readmission reoperation, as well longer hospital length stay. The patient-reported health care experiences are diminished for those in whom SSI complications occur. Previous studies have analyzed patients undergoing all types requiring incision. role closed incision negative pressure therapy (CiNPT) an adjunct to the primarily femoral unclear....

10.25270/wnds/2022.e22e28 article EN WOUNDS A Compendium of Clinical Research and Practice 2022-01-01

We aimed to develop a method that provides an alternative cannulation site in robotic mitral valve surgery allows simultaneous endo-occlusion and antegrade perfusion. A 71-year-old man with severe regurgitation history of coronary artery bypass grafting underwent totally endoscopic repair. 23-mm endoreturn cannula was placed through 10-mm graft sewn the left axillary artery. An endoballoon passed Dacron/cannula complex into ascending aorta. This used for perfusion, occlusion, cardioplegia....

10.1097/imi.0000000000000251 article EN Innovations Technology and Techniques in Cardiothoracic and Vascular Surgery 2016-04-19

Background There is a paucity of data on outcomes related to combined heart–lung transplantations (HLTs). Our objective was identify variables associated with mortality and rejection in HLT. Methods The United Network for Organ Sharing database reviewed HLT performed between 1993 2008. Long-term survivors (survival > 5 years) were compared short-term < years). Factors examined. Risk-adjusted multivariable Cox's proportional hazards regression analysis examine rejection. Results...

10.1055/s-0036-1597989 article EN The Thoracic and Cardiovascular Surgeon 2017-01-22

Common iliac artery (CIA) aneurysms present across a spectrum of anatomic variants that can pose unique operative challenges. A wide variety procedural approaches have been described in the literature with current therapeutic options including both open and endovascular repair. These techniques may involve either ligation or embolization internal (IIA) reliance on collateralized blood flow to pelvis mitigate postoperative complications. However, preservation IIA is often preferred. This case...

10.1177/1538574419896522 article EN Vascular and Endovascular Surgery 2020-01-03

10.1177/155698451601100507 article EN Innovations Technology and Techniques in Cardiothoracic and Vascular Surgery 2016-09-01

Introduction: Outcomes after induction immunosuppression in heart transplant patients have not been investigated since the allocation policy was changed 2006. The optimal therapy continues to be controversial with many centers continuing use none at all. We evaluated outcomes modern agents primary end points being survival and rejection. Methods: United Network for Organ Sharing (UNOS) database examined all transplants from January 2006 December 2012. Patients receiving were compared those...

10.1161/circ.132.suppl_3.18653 article EN Circulation 2015-11-10
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