Welcome to RK.MD
A platform where cardiac anesthesiologist and intensivist Dr. Rishi Kumar shares insights in perioperative medicine, critical care, education, and tech while promoting curiosity and lifelong learning.
From The Blog
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Hemodynamic Changes After Terminal Extubation
Removing an endotracheal tube and ventilator support from a patient nearing the end of life (“terminal extubation”) is a decision…
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Building An Emergency Fund
With market volatility, unexpected layoffs, personal emergencies, and uncertainty about the future, the COVID pandemic taught us the value of…
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Pneumopericardium
The heart is encased within a double-layered protective sac called the pericardium. Pneumopericardium occurs when air accumulates within this sac…
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Peripheral VA-ECMO Watershed Area
Peripheral venous-arterial (VA) ECMO, typically via the common femoral vein and artery, can be utilized as a bridge to recovery…
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Calculating Cardiac Output With Volume-Time Integral (VTI)
Cardiac output (CO) is mathematically calculated as the product of heart rate and stroke volume. It’s related to preload, afterload,…
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Spinal Cord On TEE
The heart is anterior to the esophagus, so the transesophageal echo (TEE) probe is facing anteriorly for the majority of…