MCQ 36: PCI through radial route

Q. Advantages of choosing left radial artery over right radial artery during trans-radial PCI are all except?
A. Prevalence of subclavian artery tortuosity and radial artery loops are three times more common in right radial artery
B. Hooking of LIMA is easier from left radial artery
C. Learning curve is short in left radial route than right
D. Incidence of radial artery spasms is more in right radial artery

Answer: D. Incidence of radial artery spasms is more in right radial artery

Explanation:

PCI from left radial route has many advantages as compared to right artery. Prevalence of radial artery loops and subclavian artery tortuosity are more three times more common on right side. Learning curve is longer in right radial artery and hooking of left internal mammary artery (after CABG) is difficult from the right radial route because it involves crossing to the opposite side from the aortic arch. However, the incidence of radial artery spasms during the procedure is same in both the sides (~3.5%).

ECG Spotter

What is the diagnosis? Click the button below to view answer: Show Answer

MCQ

Cardiology MCQ Q. Which of the following leads is not an inferior lead in ECG? A. Lead II B. Lead III C. Lead aVF D. Lead aVR Click the button below to view answer Show answer Correct answer is option D. Lead aVR

ST segment and T wave changes

What is the cause of ST changes and T wave inversions in this ECG? Should the patient be taken to Cath lab for coronary angiography? Show Answer These ST segment and T wave changes are secondary to left ventricular hypertrophy. There are classical features of left ventricular hypertrophy in this ECG which should not be missed. Hence, if the patient doesn't have any other features which suggest ischemia, then he should undergo evaluation for cause of left ventricular hypertrophy. The most common cause for left ventricular hypertrophy is hypertension.

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