Showing posts with label Cardiology. Show all posts
Showing posts with label Cardiology. Show all posts

Monday, December 11, 2023

Applications of indium-111 antimyosin imaging

Applications of indium-111 antimyosin imaging:

Evaluation of the site, extent and quantitation of the severity of myocardial necrosis.

Myocarditis

Uptake  after 1 year post-transplant is associated with an increased rejection rate

Anthracycline treatment - unclear role

Tuesday, August 8, 2023

Lead impedance change threshold and cause

Low lead impedance 
< 200 ohms
Indicate insulation breach
Usually inner insulation in a bipolar coaxial lead

High lead impedance 
> 2000 ohms
Indicate open circuit
Lead fracture or loose set screw

Friday, August 4, 2023

Threshold for surgical repair of thoracic aortic aneurysm in patients with Marfan syndrome mnemonic

What is the threshold for surgical repair of thoracic aortic aneurysm in patients with Marfan syndrome? 

5 cm

Marfan, MarFIVE

The threshold for surgical repair in patients with Marfan syndrome is an external diameter of 5 cm. Factors that will prompt repair at a diameter <5 cm include rapid growth of >0.5 cm in 1 year, family history of aortic dissection at a diameter <5 cm, or the presence of significant aortic regurgitation.

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 :)

Sunday, December 25, 2022

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! 


-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.

Thursday, July 7, 2022

Low voltage criteria on ECG mnemonic

Entire amplitude of the QRS (R + S wave) must be < 5mm in all limb leads or < 10mm in all precordial leads. How do I remember this? Mnemonic!​


- IkaN (Nakeya Dewaswala)

Friday, January 28, 2022

Quantification of severe mitral regurgitation (MR) mnemonic


Quantification of severe chronic mitral regurgitation mnemonic. 

Courtesy Dr. Mikel Smith

-IkaN (Nakeya Dewaswala Bhopalwala) 

Wednesday, January 26, 2022

Mitral stenosis gradient and heart rate

Why is the pressure gradient in mitral stenosis heart rate dependent? Why is the pressure gradient in aortic stenosis heart rate dependent?

Monday, January 3, 2022

Apex beat in Aortic stenosis vs regurgitation

 Hello

Clinical pearl: Retroperitoneal hematoma

 Hello

Vascular access during cardiac catheterization (in cases of myocardial infarction, for example) obtained through femoral artery above the level of inguinal ligament may lead to retroperitoneal hematoma due to arterial puncture.