Publications by authors named "Irsa Hasan"

Background: This study aimed to elucidate the incidence, risk factors, and midterm outcomes associated with hemodynamic valve deterioration (HVD) 1 year after transcatheter aortic valve implantation (TAVI).

Methods: This was a retrospective, single-institution cohort study of consecutive TAVIs from 2012 to 2022. Patients with immediate post-TAVI, 30-day, and 1-year echocardiographic data were included.

View Article and Find Full Text PDF

Background: There is a lack of consensus regarding the best strategy for aortic root replacement with current guidelines supporting the use of mechanical valves in younger patients when a valve repair is not possible. We sought to describe our institutional experience with mechanical aortic root replacement.

Methods: This was a descriptive study using an institutional database of aortic root replacements with a mechanical valve composite graft performed at our center from 2010 to 2022.

View Article and Find Full Text PDF

Background: To determine the impact of tricuspid regurgitation (TR) on outcomes after transcatheter aortic valve implantation (TAVI), and to determine the evolution of TR severity after TAVI.

Methods: This was an observational study of TAVIs for aortic stenosis from November 2012 to December 2021. Patients were dichotomized according to the severity of pre-TAVI TR: less than moderate versus moderate or greater.

View Article and Find Full Text PDF

Background: Variability in transcatheter aortic valve replacement (TAVR) readmission rates highlights the importance of assessing post-discharge outcomes. Understanding how teaching hospital status and causes of readmission influence mortality could optimise post-TAVR care.

Methods: Using the National Readmissions Database, we identified 155,298 TAVR admissions from 2012 to 2020.

View Article and Find Full Text PDF

Background: Specific transcatheter aortic valve replacement (TAVR) valve superiority is not established in the small aortic annulus (SAA) population. We sought to compare clinical and echocardiographic characteristics between patients with a SAA who underwent TAVR with either intra-annular self-expanding valves (SEV) or balloon-expandable valves (BEV).

Methods: This was an observational, retrospective analysis (2013-2023).

View Article and Find Full Text PDF

Objective: This study sought to determine the impact of surgical versus transcatheter aortic valve replacement in patients with low-flow, low-gradient aortic stenosis.

Methods: This was an observational study of consecutive aortic valve replacements for severe aortic stenosis from 2010 to 2023. Patients with low-flow, low-gradient aortic stenosis (aortic valve mean gradient <40 mm Hg and a stroke volume index <35 mL/m) were included.

View Article and Find Full Text PDF

Objectives: Early and late outcomes of isolated tricuspid surgery in contemporary practice are poorly defined. This statewide analysis evaluated the early and late outcomes of isolated tricuspid repair and replacement.

Methods: From the Department of Health Care Access and Information of California State admissions database, 3706 patients who underwent isolated tricuspid repair (2419, 65.

View Article and Find Full Text PDF

Objective: To determine the impact of hematocrit on adverse neurologic events after acute type A aortic dissection (ATAAD) repair under deep hypothermic circulatory arrest.

Design: Retrospective study of consecutive aortic surgeries from 2010 to 2021.

Setting: Single institution.

View Article and Find Full Text PDF

Objective: The study objective was to characterize the trends and outcomes of aortic valve replacement in patients aged less than 65 years with aortic stenosis between 2013 and 2021.

Methods: This retrospective analysis included 9557 patients who underwent biological aortic valve replacement in California, New York, and New Jersey from 2013 to 2021. Patients were stratified by approach: transcatheter aortic valve replacement versus surgical aortic valve replacement.

View Article and Find Full Text PDF

Purpose Of Review: Over the past 25 years, robotic-assisted mitral valve surgery has gained significant recognition because of its potential to minimize patient trauma and improve clinical outcomes. This field has evolved from early efforts in minimally invasive mitral procedures to more refined and technically sophisticated approaches, driven by the need for smaller incisions and reduced recovery times.

Recent Findings: This review will delve into the historical evolution of robotic-assisted mitral valve surgery, detailing the technical advancements that have shaped current practices and outlining the essential training pathways for a career as robotic mitral valve surgeon.

View Article and Find Full Text PDF

Objective: We created and validated a low-cost simulation model for robotic internal mammary artery (IMA) takedown.

Methods: The simulation model utilized a calf fetus thorax cavity stented open internally and secured to a table. The simulation model was validated at a 2-day robotic cardiac surgery workshop.

View Article and Find Full Text PDF
Article Synopsis
  • Self-expanding (SE) and balloon-expandable (BE) transcatheter heart valves (THVs) are being studied for their performance in valve-in-valve transcatheter aortic valve replacement (ViV-TAVR), with a focus on clinical outcomes from 315 patients over a decade.
  • Results showed that patients with SE THVs experienced lower aortic valve gradients both at 30 days and 1 year post-procedure compared to those with BE THVs, indicating better valve performance.
  • Both types of valves showed similar survival rates and mortality, but BE THVs had a higher incidence of severe prosthesis-patient mismatch, suggesting potential differences in long-term outcomes that need further research.
View Article and Find Full Text PDF

Objective: Data regarding management of lower-extremity malperfusion in the setting of type A aortic dissection are limited. This study aimed to compare acute type A aortic dissection with lower-extremity malperfusion outcomes in patients undergoing lower-extremity revascularization with no revascularization.

Methods: Consecutive patients undergoing acute type A aortic dissection surgery were identified from a prospectively maintained database.

View Article and Find Full Text PDF

Background Because thoracic endovascular aortic repair (TEVAR) has become the standard of care for complicated type B aortic dissection (TBAD) and descending thoracic aortic (DTA) aneurysm, it is important to understand outcomes and use of TEVAR across thoracic aortic pathologies. Methods and Results This was an observational study of patients with TBAD or DTA undergoing TEVAR from 2010 to 2018, using the Nationwide Readmissions Database. In-hospital mortality, postoperative complications, admission costs, and 30- and 90-day readmissions were compared between the groups.

View Article and Find Full Text PDF

Background: In patients undergoing mitral valve surgery, optimal management of less-than-severe concomitant tricuspid valve regurgitation (TR) is unclear, as there are few long-term data. This study examines progression of TR, patient survival, and reoperations in patients undergoing mitral valve surgery.

Methods: There were 1588 patients who underwent degenerative mitral valve surgery and had pre- and postoperative echocardiograms for assessment of TR severity and tricuspid annulus diameter.

View Article and Find Full Text PDF

Introduction: Prior studies have demonstrated that outcomes of invasive cardiac interventions may vary by hospital teaching status and volume. As transcatheter aortic valve replacement (TAVR) rapidly expands from teaching to nonteaching hospitals across the country, the clinical impact of hospital teaching status has not been clearly established. This study aimed to compare TAVR outcomes between nonteaching and teaching hospitals.

View Article and Find Full Text PDF

Background: A prolonged air leak (PAL) is the most frequent complication after pulmonary resection. This study aimed to assess the safety and efficacy of autologous blood patch pleurodesis (ABPP) to treat PAL.

Methods: A prospectively maintained database identified patients with a PAL after pulmonary resection for lung cancer between 2015-2019.

View Article and Find Full Text PDF

Background: Geographic origin is cited as a possible factor influencing outcomes of operation for repair or replacement of degenerative mitral valve (MV) disease. Our study aimed to identify the potential impact of referral bias on clinical outcomes of MV surgery.

Methods: We analyzed clinical and echocardiographic information of 2353 patients undergoing primary or secondary MV surgery for degenerative MV disease.

View Article and Find Full Text PDF