What is the distance between arterial and venous puncture sites during arteriovenous fistula puncture?

Under normal circumstances, the distance between arterial and venous puncture sites during arteriovenous fistula puncture should typically be at least 1.5 to 2 times the diameter of the fistula, although this may vary depending on individual differences. The detailed analysis is as follows:

Normally, the distance between arterial and venous puncture sites during fistula cannulation should be sufficiently far apart, generally determined based on the patient's specific anatomy and the clinician's experience, usually beyond 1.5 to 2 times the fistula diameter. This helps prevent damage to the intervening tissues and avoids unnecessary complications during puncture.

It should be noted that the anatomical structure and diameter of the fistula vary among individuals. Therefore, during actual procedures, the distance between puncture sites should be determined according to each patient's specific condition and must be performed by a qualified physician under close monitoring to minimize the risk of complications.