Medicowesome

Wednesday, July 12, 2023

Mnemonic: Actions of Laryngeal Muscles; It’s so easy!

https://youtu.be/wjyMy7Kt6B8

Sunday, June 18, 2023

Neonatal Hypoglycemia | Q&A | NICU NOTION | Let’s read with me!

Thursday, April 27, 2023

Dysbarism - Emergency Medicine

Hello all !

Dysbarism:

refers to illness that is related to pressure changes in the body , that exceeds the body's capacity to adapt to these changes

Pathophysiology of dysbariam depends on the Boyle's law : in which pressure is inversely related to volume

When you descend e.g deep water : Pressure increases and volume decreases

When you ascend : Volume increases and pressure decreases

I will explain the main disorders of Descent and Ascent

Disorders of descent

1. Nitrogen Narcosis

Gas we breath contains all gases : including nitrogen.

When you descend the nitrogen gas dissolves in blood and causes the symptoms of nitrogen intoxication.

Management : Ascent

2. Barotitis

Pressure damage to the ear due to squeezing secondary to the elevated pressures

Management: Ascent , supportive treatment

Disorders of Ascent

1. Arterial Gas Embolism

Volume expansion in every air filled areas of the body e.g GIT, Alveoli

When it occurs in the alveoli it cause the formation of an air embolus into the pulmonary vein : which can travel to the brain - causing stroke, in the heart - causing Myocardial Ischaemia

Usually acute onset : usually within minutes of ascent (e.g from diving)

Management: involves hyperbarric treatment

2. Decompression Sickness

This is caused by formation of nitrogen gas bubbles (opposite to when you descend where it dissolves)

There are two main types of decompression sickness

i. Type 1

- Usually involving the skin and joints : painful skin and joints

ii. Type 2

- Usually involving the CNS : paraesthesia, paralysis

Management involves : Hyperbarric treatment , Oxygen, Aspirin

NB : patient with type 1 DS : have to avoid air travel for upto one week ,those with type 2 DS : have to avoid air travel for upto 1 month

I hope it was helpful ! For any queries feel free to contact me

Happy reading !

Author : Mohammad Faruk Omar

Emergency Medicine Resident

Muhimbili University of Health and Allied Sciences, Tanzania

Tuesday, December 27, 2022

Cardiology board prep study groups

Creating echo boards prep Whatsapp group and general cardiology boards prep Whatsapp group. Please email medicowesome@gmail.com for details :)

Transposition of the Great Arteries: D-TGA & L-TGA (congenitally corrected TGA) mnemonic

Here's a mnemonic I made:

D the arteries.

And L flipped 45 degrees counter clock wise looks like a V for ventricles so ventricles are transpositioned. Ventricles also have C that reminds me it's congenitally corrected.

That's all!

Read more: Transpositioned of great arteries by Medha

-IkaN (Nakeya Dewaswala)

Saturday, December 24, 2022

Hysteresis

In single chamber devices, for ventricular pacing, hysteresis allows a longer cycle length after a sensed event than after a paced beat.

It helps maintain intrinsic rhythm and preserves battery.

In summary: Hysteresis is a programmable feature that allows the pacemaker to begin ventricular pacing only if the spontaneous rate falls below a set rate (eg, 50 bpm); then pacing continues at the programmed base rate (60 bpm) unless intrinsic ventricular activity is sensed.