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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WHO Pulmonary Hypertension (PH) Groups
Pulmonary hypertension (PH) is a broad topic encompassing primary and secondary etiologies. Like systemic hypertension, PH refers to elevated pressures…
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Type A Dissection
Acute ascending aortic dissection (type A) is a true surgical emergency. Arterial walls are comprised of the intima (innermost layer),…
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MAC, Cordis, Sheath Introducer – What’s The Difference?
As a cardiothoracic anesthesiologist and intensivist, I routinely place large central lines for resuscitation, vasoactive/inotrope administration, and to facilitate additional…
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Launch Of The Butterfly iQ+
As a cardiothoracic anesthesiologist and intensivist, I utilize ultrasound in a myriad of ways. Whether I’m placing a peripheral nerve…
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Tracheostomy Dislodgment
The COVID-19 era has forced many healthcare workers with no prior experience regarding tracheostomy tubes (“trachs”) to learn how to…
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Jehovah’s Witnesses And Blood Transfusions
There are over 8 million Jehovah’s Witnesses (JWs) worldwide who routinely do not accept whole blood, packed red blood cells,…