Arrhythmias in Laparoscopic Surgery

by admin on September 10, 2010

Veress needle is used to be introduced in abdomen so as to pass the instruments, small incision is made around umblicus, through which carbon di oxide is being passed into abdomen, with maximum pressure of 13 to 15 mm of mercury.

This Gas in peritoneum is known as penumoperitoneum, it causes bradycardia (low heart rate) in hypovolumic patients. Gas causes stretch in abdomen which causes vasovagal response, and even this gas produced pressure on inferior vena cava.

As you know that surgery is being carried out in general anaesthesia, so all muscles are relaxed, even of lower limbs, and patient is in reverse trendelenburg position, so all this lead to low venous return, ultimately causing low cardiac output.

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