Publications by authors named "Krish Dewan"

Background: Direct mechanical ventricular actuation (DMVA) with the Anstadt cup is effective for non-blood-contacting biventricular support. Pneumatic regulation of a silicone device augments ventricular pump function. Vacuum attachment facilitates diastolic augmentation critical for biventricular support.

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  • - The study analyzed cardiovascular surgery outcomes for dementia patients, finding they comprised 0.27% of all cardiac surgery cases from 2002 to 2014, highlighting a gap in data for this demographic.
  • - Results showed that while dementia patients had a lower postoperative mortality rate (3.4%) than non-dementia patients (4.6%), they experienced higher rates of complications, including delirium and blood transfusions.
  • - Dementia patients were significantly more likely to be discharged to skilled nursing facilities (49.8%) and faced issues like delirium and renal complications, indicating that careful patient selection and targeted interventions could improve their surgical outcomes.
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It may take decades to develop cardiovascular dysfunction following exposure to high doses of ionizing radiation from medical therapy or from nuclear accidents. Since astronauts may be exposed continually to a complex space radiation environment unlike that experienced on Earth, it is unresolved whether there is a risk to cardiovascular health during long-term space exploration missions. Previously, we have described that mice exposed to a single dose of simplified Galactic Cosmic Ray (GCR) develop cardiovascular dysfunction by 12 months post-radiation.

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This study evaluated the nationwide associations between concomitant left atrial appendage clip (LAAC) placement during cardiac surgery and postoperative outcomes. We identified 1,260,999 patients who underwent coronary artery bypass grafting, valve, and aortic surgeries in the 2016 to 2020 Nationwide Readmissions Database and stratified by concomitant LAAC versus no LAAC placement. Patients who underwent surgical ablation were excluded.

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Background: The association between low socioeconomic status (SES) and worse surgical outcomes has become an emerging area of interest. Literature has demonstrated that carotid artery stenting (CAS) poses greater risk of postoperative complications, particularly stroke, than carotid endarterectomy (CEA). This study aims to compare the impact of low SES on patients undergoing CAS vs.

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Introduction: We sought to compare outcomes after early discharge in patients with and without predischarge diagnosis of arrhythmia following minimally invasive valve surgery (MIVS).

Materials And Methods: We retrospectively reviewed ambulatory electrocardiography (AECG) datasheets and medical records of patients discharged with 14-d AECG monitoring from our facility between October 2019 and March 2022 ≤ 3 d after MIVS. Baseline and clinical characteristics, arrhythmias during AECG monitoring, and 30-d adverse outcomes were reported for the population and stratified by presence or absence of predischarge arrhythmia.

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The Aeson total artificial heart provides right- and left-sided heart replacement for biventricular failure with notable improvements from prior generations. These include enhanced hemocompatibility and autoregulation enabling increased output in response to higher filling pressures. We report the first clinical implantation in the United States as part of an early feasibility study.

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Background: Owing to the opioid epidemic, more cardiac surgery patients present with opioid use disorder (OUD). A better understanding of national readmissions among these patients is necessary to improve outcomes and optimize resource utilization. We sought to examine the effect of OUD on readmission after cardiac surgery.

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Background: Despite living closer to high-performing centers, minority patients reportedly receive care at lower-quality hospitals. Investigating opportunities for improvement at minority-serving hospitals may help attenuate disparities in care among cardiothoracic surgery patients. We sought to investigate the relationship between hospital quality and failure to rescue (FTR).

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Background: We sought to determine the impact of left atrial appendage clip exclusion (LAACE) on coronary artery bypass grafting (CABG) outcomes among patients with pre-existing atrial fibrillation (AF).

Methods: From October 1, 2015 to October 1, 2017, 4210 Medicare beneficiaries with pre-existing AF underwent isolated CABG (i.e.

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Background: Failure to rescue (FTR) is gaining popularity as a quality metric. The relationship between patient frailty and FTR after cardiovascular surgery has not been fully explored. This study aimed to utilize a national database to examine the impact of patient frailty on FTR.

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  • Staphylococcus aureus is a common cause of sternal surgical site infections, and this study looks into how preoperative methicillin-resistant S aureus (MRSA) colonization impacts postoperative outcomes.
  • A large analysis of cardiac surgical patients showed that MRSA carriers had similar rates of serious complications, such as mortality and surgical site infections, compared to noncarriers, though they did experience higher rates of MRSA infection and septicemia.
  • The findings suggest that while MRSA carriers do not face higher risks for major complications, they may benefit from targeted preoperative screening and preventive measures.
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  • * It compares outcomes between cardiac surgery patients with OUD (11,359 individuals) and those without (5,707,193 individuals), revealing significant differences in age, gender, and race.
  • * Key findings indicate that patients with OUD were younger, predominantly male, and more often from lower-income backgrounds, raising concerns about their health outcomes post-surgery, including in-hospital mortality, complications, and recovery.
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