Publications by authors named "Amol Pande"

Background: Relationships between pulmonary hypertension (PHTN), mitral valve intervention (MVI), and death among patients with Shone's syndrome (SS) are unclear. Our recent data suggested temporal progression of MV disease and early survival benefit with MVI at initial operation. In this expanded cohort, we characterized trajectory and impact of PHTN on survival, and its relationship to MVI(s).

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Objectives: Bicuspid aortic valve (BAV) aortopathy is defined by 3 phenotypes-root, ascending, and diffuse-based on region of maximal aortic dilation. We sought to determine the association between aortic mechanical behavior and aortopathy phenotype versus other clinical variables.

Methods: From August 1, 2016, to March 1, 2023, 375 aortic specimens were collected from 105 patients undergoing elective ascending aortic aneurysm repair for BAV aortopathy.

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Objective: The study objective was to characterize preoperative and postoperative continuous electroencephalogram metrics and hemodynamic adverse events as predictors of neurodevelopment in congenital heart disease infants undergoing cardiac surgery.

Methods: From 2010 to 2021, 320 infants underwent congenital heart disease surgery at our institution, of whom 217 had perioperative continuous electroencephalogram monitoring and were included in our study. Neurodevelopment was assessed in 76 patients by the Bayley Scales of Infant and Toddler Development, 3rd edition, consisting of cognitive, communication, and motor scaled scores.

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Article Synopsis
  • The study aimed to analyze how surgeon experience and age affect hospital mortality rates after cardiac reoperations, considering institutional experience as well.
  • Over a nearly 70-year period, researchers evaluated data from 36 surgeons performing over 160,000 cardiac operations, using a complex model that included surgeon and institutional experience metrics and patient factors.
  • Findings indicated that while hospital death rates initially decreased rapidly with surgeon experience, they stabilized at a low level after a certain number of reoperations, with surgeon age up to 75 showing a positive correlation with improved outcomes, highlighting the importance of institutional experience in enhancing patient safety.
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Article Synopsis
  • The study investigates how patient age and aortic tissue characteristics influence the mechanical behavior of both aneurysmal and nonaneurysmal aortic tissues.
  • It involved analyzing 382 aortic specimens from 134 patients using biaxial and uniaxial testing methods to measure various mechanical properties.
  • The results show that nonaneurysmal tissues are less deformable than aneurysmal tissues, with age, aortic length, and thickness being key factors affecting mechanical properties, which may help in understanding aortic dysfunction.
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Objective: Surveillance metrics in pediatric and young adult Marfan syndrome (pMFS) are challenging. We evaluated the utility of aortic root cross-sectional area/height index (CSA/Ht) on echocardiogram among pMFS patients as a risk stratification and surgical triage metric.

Methods: Genotype or phenotype positive pMFS patients aged 25 years or younger seen at our center from 2001 to 2020 were identified.

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Background: Worsening tricuspid regurgitation (TR) severity may occur after pericardiectomy surgery for constrictive pericarditis patients; however, its mechanisms and predictors are not well established. We evaluated the clinical characteristics, associated factors, and outcomes of worsening TR after pericardiectomy.

Methods: Consecutive patients undergoing pericardiectomy for constrictive pericarditis without tricuspid valve surgery and with pre- and postoperative echocardiography available during 2000 to 2017 were retrospectively studied.

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Objectives: The aim of this study was to determine differences in esophageal perforation populations undergoing different advanced interventions for perforated esophagus and identify predictors of treatment outcomes.

Summary Background Data: Contained esophageal perforation can often be managed expectantly, but uncontained perforation is uniformly fatal without invasive intervention. Treatment options for the latter range from simple endoscopic control through advanced intervention.

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Aims: The risk of HeartMate II (HMII) left ventricular assist device (LVAD) thrombosis has been reported, and serum lactate dehydrogenase (LDH), a biomarker of haemolysis, increases secondary to LVAD thrombosis. This study evaluated longitudinal measurements of LDH post-LVAD implantation, hypothesizing that LDH trends could timely predict future LVAD thrombosis.

Methods And Results: From October 2004 to October 2014, 350 HMIIs were implanted in 323 patients at Cleveland Clinic.

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Machine learning methods provide a powerful approach for analyzing longitudinal data in which repeated measurements are observed for a subject over time. We boost multivariate trees to fit a novel flexible semi-nonparametric marginal model for longitudinal data. In this model, features are assumed to be nonparametric, while feature-time interactions are modeled semi-nonparametrically utilizing -splines with estimated smoothing parameter.

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Background: There exist several reports demonstrating enhancement in oxidative stress in diabetic patients; however, serial and comprehensive measurement of oxidative stress parameters in newly diagnosed diabetic patients is not yet reported. We measured the oxidative stress parameters in diabetic patients serially from the time of diagnosis and after starting treatment to study their association with glycaemia, insulin resistance and β-cell function.

Methods: Fifty-four newly diagnosed diabetic patients were studied at diagnosis and 4 and 8 weeks after initiating anti-hyperglycaemic treatment.

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Objective. The aim of this study was to compare SUDOSCAN, a new device to evaluate sweat function (reflecting peripheral small C-fiber status), with conventional measures of peripheral and cardiac neuropathy in patients with type 2 diabetes. Methods.

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