Publications by authors named "Shwetabh Tarun"

Objective: To analyze the factors associated with the need for tracheostomy after surgical repair of acute type A aortic dissection (ATAAD) and its implications for longitudinal outcomes.

Methods: This retrospective analysis of patients who underwent ATAAD repair from 2010 to 2020 focused on a comparison of patients who required a tracheostomy versus those who did not. Adjusted regression analysis and a classification and regression tree (CART) model were used to assess factors influencing the need for tracheostomy and its association with longitudinal survival.

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Objective: Evaluate race-sex-based disparities following acute type A aortic dissection (ATAAD) repair.

Methods: retrospective cohort study (2010-2021) conducted at a high-volume referral aortic center. Multivariable regression models were used to assess race- and sex-stratified differences in mortality and resource utilization.

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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.

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Article Synopsis
  • The study investigates spinal cord ischemia (SCI) after thoracic endovascular aortic repair (TEVAR), focusing on whether extended aortic coverage increases the risk of SCI, which affects about 10% of patients.
  • A review of 277 patients revealed that those with ≥205 mm of aorta coverage had specific risk factors like smoking and previous strokes, but there was no significant increase in SCI rates (4.7% vs. 4.2%) compared to standard coverage.
  • The findings suggest that the lack of increased SCI risk with extended coverage may be due to a higher use of preventive lumbar drainage in that patient group, even though they experienced more type II endoleaks.
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Background: Studies that have assessed the Rastelli and Nikaidoh operations for transposition of the great arteries (TGA) with obstructed left ventricular outflow tract obstruction (LVOTO) have not fully evaluated the anatomic drivers that may contribute to surgical selection. We present our procedural selection process for optimizing outcomes of complex TGA in the modern era.

Methods: This is a single-center, retrospective study that included pediatric patients who underwent either a Nikaidoh or Rastelli operation for the treatment of TGA-LVOTO, congenitally corrected TGA-LVOTO, or double-outlet right ventricle TGA type-LVOTO from June 2004 to June 2021.

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Background: This study aimed to longitudinally compare expanded polytetrafluoroethylene (ePTFE)-valved conduits vs pulmonary homograft (PH) conduits after right ventricular outflow tract reconstruction in the Ross procedure.

Methods: Patients undergoing a Ross procedure from June 2004 to December 2021 were identified. Echocardiographic data, catheter-based interventions, or conduit replacements, as well as time to first reintervention or replacement, were comparatively assessed between handmade ePTFE-valved conduits and PH conduits.

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Background: Conduit longevity after right ventricular outflow tract (RVOT) reconstruction is determined by the interaction of different factors. We evaluated the relationship between conduit anatomic position and long-term durability among ≥18 mm polytetrafluoroethylene (PTFE) conduits.

Methods: A single-institution RVOT reconstructions using a PTFE conduit ≥18 mm were identified.

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Tyrosine kinase inhibitors (TKIs) are used to treat several cancers; however, a myriad of adverse cardiotoxic effects remain a primary concern. Although hypertension (HTN) is the most common adverse effect reported with TKI therapy, incidents of arrhythmias (eg, QT prolongation, atrial fibrillation) and heart failure are also prevalent. These complications warrant further research toward understanding the mechanisms of TKI-induced cardiotoxicity.

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