We are excited to announce we have a new #POCUS book coming out! The POCUS Textbook will be available this summer in Hardcover and Kindle. It focuses on crystal-clear figures without confusing abbreviations, and associated QR code videos, accessible for free with any smartphone.

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RT @MBHTPleuralteam: Love the power of POCUS 🫁.

RT @YCGaryLee: Very useful.

Study source:

The lung pulse, pneumothorax, and lung ultrasound are covered in depth in The POCUS Textbook, coming out this summer!. Go here to learn more and sign up for release updates: #foamed #meded #medtwitter @RJonesSonoEM @khaycock2 @NephroP @POCUSpeek.

This was originally described by Dr. Lichtenstein in 2003:. "The “lung pulse” is somewhat reminiscent of tactile fremitus or apex beat. It can be explained by the presence of a parenchymatous cushion transmitting the vibrations of the heart through a motionless lung. When the

If the lung is still attached to the chest wall, the heart beats are transmitted through the lung and can be seen with the ultrasound at the chest wall. If a pneumothorax were present, the lung pulse would also be absent. This can also be seen on M-mode as equidistant vertical

This is a lung pulse seen with #pocus. This is a clever way to rule out a pneumothorax in patients with absent lung sliding. While pneumothorax is a likely cause of absent lung sliding, it can also be seen with pulmonary fibrosis, pleurodesis, or atelectasis. In these latter

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This image has caused some confusion. This is pointing to the posterior wall of the LVOT where the non-coronary cusp attaches. This is in the same coronal plane as the right atrium (which is not seen here). This is not pointing to the left atrium.

RT @RJonesSonoEM: Case of the week. Posts can also be found at #POCUS #IMPOCUS #MedTwitter #Medicalstudent #Medica….

RAP POCUS Study: RAD measured from CT scans:

We discuss how to examine the jugular vein with #pocus and calculate right atrial pressure at the bedside in The POCUS Textbook, coming out this summer!. Go here to learn more and sign up for release updates:. #FOAMed #meded #MedTwitter #cardiotwitter.

@dr_larryi et al. showed that you can measure the RAD and add it to the vertical distance from the sternum up to the jugular vein meniscus visualized with #pocus to get an actual pressure value. When compared with gold-standard right heart catheterizations done immediately

But we now know that the RAD can vary from about 5 to 15 centimeters and is different in every patient. In a study where the RAD from CT scans was measured, the 5-centimeter measurement was only correct 29% of the time.

This distance cannot be measured with eyesight alone, which is why we are taught to add 5 centimeters of water to our estimate of jugular venous pressure at the neck. However, an 80-pound woman has a very different right atrial depth than a 300-pound man. This 5-centimeter.

This is the right atrial depth (RAD). It is a measurement from the sternum down to the center of the right atrium that we can use to calculate the jugular venous pressure (JVP) and estimate the right atrial pressure (RAP).

This is why a #pocus exam of the common carotid should be standard in any patient presenting with shortness of breath. We have multiple chapters on common carotid POCUS in The POCUS Textbook coming out this summer!. Go here to learn more and sign up for release updates:

Pulsus bisferiens is seen with aortic regurgitation, but can be seen in other diseases as well. Diastolic flow reversal is highly specific (though not sensitive) for moderate to severe aortic regurgitation. In a study of 1,320 patients who had an echo and carotid Doppler,.