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Passy Muir Valve

Normally air moves in and out of tracheostomy tubes (trachs) below the level of the vocal cords rendering a patient aphonic. By using a Passy Muir Valve (PMV), otherwise known as a "speaking valve", airflow is redirected through the vocal…
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Intracardiac Echocardiography (ICE)

Intracardiac echocardiography (ICE) allows cardiologists to visualize cardiac structures (aorta, valves, pulmonary veins, chambers, etc) from an ultrasound catheter usually threaded into the right atrium (RA) or right ventricle (RV) from…
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Starry Internet

Last week I discontinued my Comcast Xfinity service in favor of a new service provided by my apartment complex - Starry Internet. Starry operates on the 38.2 and 38.6 GHz bands are uses wireless technology to connect the provided wi-fi…
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Mitral Valve Anatomy

The mitral valve (MV) separates the left atrium (LA) and left ventricle (LV). It's a bileaflet valve composed of an anterior and posterior leaflet, each with three "scallops" designated A1, A2, A3, P1, P2, and P3. The A3-P3 interface tapers…
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Re-expansion Pulmonary Edema

Re-expansion pulmonary edema is a rare but relevant consideration after a large volume thoracentesis. It's a consequence of the rapid expansion of a previously collapsed lung due to a pleural effusion, pneumothorax, etc.
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Blakemore Tube

Blakemore tubes (and their analogues like Minnesota tubes) are rarely used in the modern day of endoscopy but can still have a role in the acute setting of gastrointestinal bleeding from varices. These tubes are lubricated and passed to…
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Pulse Contour Analysis

Described over a 100 years ago, pulse contour analysis was purported to be a surrogate for cardiac output. In this technique, the area under the systolic portion of the arterial pressure curve is calculated. This area changes during the…
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ABOUT DR. RISHI

Board certified anesthesiologist and Harvard combined clinical fellow in critical care and adult cardiothoracic anesthesiology looking to improve medical education, diagnostics, and patient safety while promoting team-based, patient-centered care.

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