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Rishi Kumar, MD
United States
Registrace 18. 11. 2012
Hi! I'm Rishi, otherwise known as RK.md, a Harvard-trained, board certified adult cardiothoracic anesthesiologist and intensive care physician looking to improve medical education, diagnostics, and patient safety while promoting team-based, patient-centered care.
My goal with CZcams is to provide a forum to discuss medicine and technology while sharing bits of my life as an academic clinician practicing in the world's largest medical center!
My goal with CZcams is to provide a forum to discuss medicine and technology while sharing bits of my life as an academic clinician practicing in the world's largest medical center!
HandBrake For Video Batch Conversion
I prefer MP4 video files for my presentations, research, and archives. In this screencast, I'll show you how I use HandBrake, an open source software for Mac, Linux, and Windows, to batch convert AVI files on my iMac Pro.
Download HandBrake: handbrake.fr/
Subscribe to the channel, and drop me a comment with questions or suggestions!
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Blog: rk.md
Instagram: rishimd
Facebook: rishikumarmd
Twitter: rishikumarmd
Download HandBrake: handbrake.fr/
Subscribe to the channel, and drop me a comment with questions or suggestions!
-----
Blog: rk.md
Instagram: rishimd
Facebook: rishikumarmd
Twitter: rishikumarmd
zhlédnutí: 8 009
Video
Frank-Starling Law
zhlédnutí 9KPřed 3 lety
The Frank-Starling Law is an important physiologic principle in cardiovascular medicine that describes how ventricular contraction is altered by changes in venous return. In this video, I’ll discuss what these “Starling curves” are about and how the physiology applies to real world examples. Blog: rk.md/2017/frank-starling-law/ Subscribe to the channel, and drop me a comment with questions or s...
Hypoxic Pulmonary Vasoconstriction (HPV)
zhlédnutí 16KPřed 3 lety
Why do potent vasodilators cause desaturation? Why do some patients with COPD get hypercarbic with supplemental oxygen? In this video, I'll discuss these two scenarios and outline the role of hypoxic pulmonary vasoconstriction (HPV). Also be sure to check out my blog post on the same topic: rk.md/2018/hypoxic-pulmonary-vasoconstriction-hpv/ Subscribe to the channel, and drop me a comment with q...
Organizing The Evidence With Reference Management Software
zhlédnutí 3,1KPřed 3 lety
Reference management software helps me store, organize, search, share, and synchronize journal articles. Various reference managers usually provide some plugin for Word or Pages to generate citations within a research manuscript you might be writing too! Although I use Bookends for my Apple-based workflow, there are plenty of options (free and paid). Here are a few popular ones: Bookends: www.s...
Unboxing The Butterfly iQ+ Portable Ultrasound
zhlédnutí 9KPřed 3 lety
As a cardiothoracic anesthesiologist and intensivist, I utilize ultrasound in a myriad of ways. From placing arterial/venous lines and peripheral nerve blocks in the operating room to performing thoracenteses or eFAST exams in the ICU, having ultrasonography at my disposal allows me to better care for my critically ill patients and teach the next generation of perioperative physicians. This is ...
A Doctor's Take On Apple's "Blood Oxygen" Sensor
zhlédnutí 267KPřed 3 lety
As a physician who is infatuated with tech, I often live at the intersection of medicine and technology. Naturally, wearable biosensors have piqued my interest over the last several years. In this video, I discuss Apple Watch Series 6's "blood oxygen" sensor (essentially a reflectance pulse oximeter), what this biosensor is ACTUALLY measuring, and why the semantics can matter. Apple Watch Serie...
Ultrasound-Guided IV Placement
zhlédnutí 26KPřed 3 lety
Ultrasound-guided line placement is an extremely common procedure I perform as a cardiothoracic anesthesiologist and intensivist. Whether it's a difficult arterial line in the OR, a dialysis catheter in the ICU, or a consult for a difficult peripheral IV placement, ultrasonography can greatly facilitate the cannulation process. In this video, I'll go over some tips and tricks using my Butterfly...
Breaking Down Blood Pressure
zhlédnutí 2,9KPřed 3 lety
Blood pressure management is one of the most common things I do as a cardiothoracic anesthesiologist and intensivist. In this video, I'll cover how I approach hypotension/hypertension by breaking it down into its components. Subscribe to the channel, and drop me a comment with questions or suggestions! Blog: rk.md Instagram: rishimd Facebook: rishikumarmd Twitter: twi...
Q&A - Episode 1
zhlédnutí 1,1KPřed 4 lety
Welcome to my first Q&A (question and answer) session! I compiled a list of questions over the last few days regarding my life as a physician and tech enthusiast. Check out my replies to the following questions: 0:30 Do you like to work with nurses? 1:10 How long was your training? 1:45 When did you start coding? 3:32 What would you be if not a doctor? 3:54 What drives you to be the MD that you...
My Tech Life
zhlédnutí 1,2KPřed 4 lety
If I didn't go the physician route, I would have undoubtedly gone into something IT-related. From a very young age, I developed an insatiable interest in technology, building gadgets, and using the latest innovations to improve my workflow and life overall. In this video, I'll go into some of the items that drive my workflow as a physician and at home as a tech enthusiast. Custom Gaming Battles...
Day In The Life Of A COVID ICU Doctor
zhlédnutí 10KPřed 4 lety
As a cardiothoracic anesthesiologist and intensivist, my clinical time is balanced between the operating rooms and ICUs. In this video, I outline a "day in the life" of me as an attending physician working in the ICUs during the COVID-19 era. Subscribe to the channel, and drop me a comment with questions or suggestions! Blog: rk.md Instagram: rishimd Facebook: rishiku...
The Relaunch - Hi, I'm Rishi!
zhlédnutí 4,1KPřed 4 lety
I'm relaunching my CZcams channel with better AV equipment and a renewed desire to teach you all about medical education, technology, and the life of a cardiothoracic anesthesiologist and intensive care physician. Subscribe to the channel, and drop me a comment with questions or suggestions! Learn more about me at: rk.md/about-me/ A/V Equipment (Amazon Affiliate links) - Camera: Sony Alpha a640...
PowerPoint Tip: Removing Image Backgrounds
zhlédnutí 738Před 4 lety
Subtle design considerations make a huge difference in PowerPoint presentations. In this video, I'll discuss how I go about making images blend in better with slide color schemes by removing the background layer. The MacOS software I've used in this video: Microsoft PowerPoint, Pixelmator Pro, and Preview Subscribe to the channel, and drop me a comment with questions! Blog: rk.md ...
Tying One-Handed Surgical Knots
zhlédnutí 36KPřed 4 lety
In this video, I'll demonstrate how to tie a one-handed surgical knot. This skill is invaluable if you perform procedures ranging from line and drain placement to actually performing surgery. Subscribe to the channel, and drop me a comment with questions! Blog: rk.md rishimd Facebook.com/rkmdblog CZcams.com/c/rishikumarmd rkmd
Standing Out During (Anesthesia) Electives
zhlédnutí 7KPřed 5 lety
Standing Out During (Anesthesia) Electives
Tips For Radial Arterial Line Placement
zhlédnutí 64KPřed 5 lety
Tips For Radial Arterial Line Placement
A Day In The Life Of A Cardiothoracic Anesthesia Fellow
zhlédnutí 25KPřed 5 lety
A Day In The Life Of A Cardiothoracic Anesthesia Fellow
Patient with moderate to severe emphysema on CXR, but without chronic hypercapnia and is normally with a baseline SpO2 94% on room air and no shortness of breath even on exertion. Patient has difficult to manage hypertension and is on several types of antihypertensives. Patient comes in with sudden onset hypoxemia (SpO2 83%), severe shortness of breath, and hypertension. VBG PCO2 32 mmHg (hyperventilating). Supplemental oxygen is applied, but because of the COPD only enough oxygen is applied to keep SpO2 88% even though the patient is having to work so hard hyperventilating to maintain the 88%. Patient remains severely short of breath and hypocapneic for the next 36 hours (peripheral PCO2 low 30's). Right heart cath several days later shows severe pulmonary hypertension. My question is: Does our fear of giving oxygen to patients with COPD (even without chronic hypercapnia), cause us to potentially cause enough hypoxic damage to parts of the pulmonary vasculature to cause permanent pulmonary hypertension?
Thank you for the explanation! ❤
Well, I just got my Apple series watch nine and Apple has discontinued blood oxygen. Do you no longer have that I have an Apple series 7 that does have it on there but what do you suggest let’s say from Amazon or manufacture for the fingertip is a good O2 sensor.???
Great job
rishi hello is there an email to ask individual questions for your *opinion* ? regarding PICC LINE
Rightnow its showing 89% is it good ?
Living at high altitude/elevation causes this. Not healthy.
Apple Watch is saying resting heart rates of 57 and I’m not an athlete and o2 of 93 should I call the dr
that was interesting
Fun-Fact : The sensor apple uses in their watches were stolen from a Medical company, Masimo laboratories.😂 But got Caught Red-Handed now
👉 I'll bet you got a lot of "beeps" from the people behind you while you practiced! (Did you mute the scream from your patient?)
Wonderful info. Thanks! I wonder why Apple lost their lawsuit to Masimo for theft of their patent on the "light emitting technology" that was invented & patented by Masimo? Maybe Masimo also invented the reflectance technology you're speaking about as well?
Hi, great video. I have sleep apnea and use a CPAP nightly and I also live at altitude (7500 ft). Do you have an opinion about the pending Masimo Freedom watch as it relates to its tech, accuracy, and providing more reliable data vs. other watch brands? Thanks!
THIS is the video I was looking for. I would like to add that for a Mac, you will need to double click on the folder to add it, rather than click on the first file within the folder.
Real time please with ultrasound
Well I thank you for the video but this isnt Linux and Linux Handbrake is nothing like this for whatever version I just installed Feb 2024. I thought It would be similar but not only do these people who write these programs make them as impossible to figure out, with every last otherwise easy fto do feature buried 20 layers deep through multiple illogical processes, they cant even make the program look and operate the same. Did they ever hear of C++, so it easily compiles to any platform. They truly are idiots. Im done with handbrake. I'm not great at python but I could write a script to call ffmpeg and do it 10, 0000 times faster than I ever will try to uncover the mysterious of the deep with handbrake. Whatever happened to File->Open and use Shift-Enter or Ctrl-Enter to grab the files you want. What is WRONG with these people. ARRRRR!
How come you’re wearing medical scrubs at home
Your content was excellent. You presented it well, and I wish you well in all your endeavors. I'm sure I speak for many people when I say, "It was helpful. Thank you.
Can you tell me anything about percardial cyst surgery per thoracic reg and laproscopy to resection .
The problem of a well saturated anaemic person is not isolated to Apple’s reflectance oxymetry. I think this should’ve been made clearer in the video because some may think that they can rely on an oximeter more than an Apple Watch, even though the watch is always on their wrist and just as valid as an occasionally used finger tip oximeter.
Thank you Doctor. Greatly appreciate this video.
My Apple Watch shows an 84-88% oxygen level during 3am-7:00 am. Not sure it’s accurate.
Your o2 levels drop about 10 as you sleep. Thats perfectly normal.
Toxicologist here to say Dr. Kumar is WRONG about what SpO2 measures. The SpO2 in pulse oximeters is NOT a measure of the oxygen bound to Hb. SpO2 is actually a measure of the sum of oxygen and carbon monoxide bound to Hb, because pulse oximeters with 2 wavelengths cannot tell them apart (COHb also peaks at 660nm). This is not a big error if you are healthy with normal COHb around 1%. But arterial COHb may be 5%, 10%, 20% or more from either exogenous (inhaled) and/or endogenous (internal) sources of CO exposure (as in COVID) -- in which case your actual oxygen level would be that much lower. Only pulse CO oximeters with more wavelengths, such as Masimo's RAD57, can distinguish COHb and O2Hb, but they cost $5000 to $10000. (I have no affiliation) The correct way to describe any pulse ox SpO2 display is as a measure of the total O2 and CO bound to arterial Hb. If normally low methemoglobin is >1%, it also may be misread as SpO2. Since the SpO2 value is always closer to the saturation pressure of all bound Hb than to the pressure of O2Hb alone, it is more accurate to think (and speak) of SpO2 as SpHb.
Thanks
I just stick to a good picketer over any watch
Oh well, I guess that's another one the adage creators got wrong. An Apple a day may not keep the doctor away, make sure your Apples are ripe! Thanks, Doc. This one is for you🍎!
This video really helped. Thank you . saved me soooooo much time.
Very helpful and beautifully explained! Many thanks.
Extremely helpful video, thank you !!! Could someone explain to me where would O2 generate high paO2 in the alveoli? Would that be in the upper alveoli? If there is lack of ventilation, not sure how does the O2 reach the basal alveoli. Thank you again:)
Thank you so much!
Thanks
Your eyes lit up once you spoke about what technology can do but also that we need not to put all our faith in the flashy apple waches but check into a drs now and again😊
Handbrake is awesome. Thanks man 👨
Remove static and rust grinder internals! Great idea!
Why no updates on this channel
This is interesting to me but you lost me throwing around all the specific names of devices and instruments. I hear the words but don't know what they mean. Sorry.
Worst video...no use
Finally!! Thanks a million!! There are a lot of tutorials but mostly for Windows and those for Mac a bit useless...
I get it the other way around. My watch gives a 94 and my finger monitor gives me 98. So, what’s up with that?
❤
Hi! My watch says I'm between 80% and 100% today. Am I need to worry about that? The everyday average is 92%.
You'll never convince the brainwashed followers of the Apple Cult that anything could be wrong with any Apple product. Their former cult leader died because he only ate fruit and ignored his doctors. Apple Cult members don't see a doctor as long as their watch tells them they're doing OK. And then they die, just like their guru.
Thank you! Very informative
Listening only is kind of boring !!!!!
Thanks for sharing , Dr !, However, it would be more interesting and helpful if you gphave some more short clips to demo what you are talikng about !
Outstanding
Excellent video! Had an aortic valve replaced 10 years ago.
omg thank you it worked
I went in by ambulance for a heart attack. It was determined I would need an emergency triple bypass. I'm almost glad I didn't have much time to think about anything that was getting ready to happen. But then again, I went in not knowing much about what was about to happen.
Sir pls give me a option to buy it in india pls i m also an anaesthesiologist🙏🙏