Publications by authors named "S Sudarsanan"

Article Synopsis
  • The study evaluated the effectiveness of various scoring systems (APACHE-II, SOFA, CASUS, and SAVE) in predicting outcomes for patients on venoarterial extracorporeal membrane oxygenation (VA-ECMO) in a cardiothoracic intensive care setting.
  • This observational study involved 142 patients admitted to a tertiary care center's CTICU after VA-ECMO insertion, using electronic health records for data collection.
  • Results showed that higher scores in APACHE-II, SOFA, and CASUS were associated with increased mortality, while pre-ECMO lactate and creatinine levels, along with complications during ECMO, also significantly correlated with patient survival.
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A sudden transition to a state of high-amplitude periodic oscillations is catastrophic in a thermo-fluid system. Conventionally, upon varying the control parameter, a sudden transition is observed as an abrupt jump in the amplitude of the fluctuations in these systems. In contrast, we present an experimental discovery of a canard explosion in a turbulent reactive flow system where we observe a continuous bifurcation with a rapid rise in the amplitude of the fluctuations within a narrow range of control parameters.

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As the Reynolds number is increased, a laminar fluid flow becomes turbulent, and the range of time and length scales associated with the flow increases. Yet, in a turbulent reactive flow system, as we increase the Reynolds number, we observe the emergence of a single dominant timescale in the acoustic pressure fluctuations, as indicated by its loss of multifractality. Such emergence of order from chaos is intriguing.

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During the first wave of the coronavirus disease (COVID-19) pandemic, a 57-year-old COVID-19 male patient was diagnosed with non-ST-elevation myocardial infarction and required urgent coronary artery bypass graft. In-patient cardiac rehabilitation following cardiac surgery was inevitable to limit or prevent various postoperative complications. A routine rehabilitation program was not feasible because of the strict COVID-19 isolation procedures, the high risk of cross infections, and the lack of various resources.

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Objective: The aim was to look at the Cardiac Surgery Score (CASUS) assessment after cardiac surgery, and compare it with the intensive care unit (ICU) mortality and morbidity, in a racially diverse group of patients, in a single center.

Design: Clinical retrospective study analyzing data from 319 patients over a 1-year duration.

Setting: Cardiothoracic intensive care unit (CTICU) of a tertiary care center.

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