Online ISSN: 2515-8260

Role of Inferior venocaval Ultrasonography Prior to Spinal Anesthesia In Guiding Vasopressor and Fluid administration

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Prof. Dr. Jayaraman V, Dr. A Benisha Julian

Abstract

Spinal anesthesia is a widely practiced, safe and reliable technique of anesthesia due to its easy predictability, low complication rate, earlier recovery of bowel function and decreased need for systemic Opioids.(1) It involves the injection of a local anesthetic drug in the subarachnoid space containing CSF which enables uptake and distribution of the drug along nerve roots that may need to be blocked to achieve surgical anesthesia.(2)Hence it can be used for surgeries below the umbilicus such as hernia repair, hysterectomy, cesarean section, urological procedures such as lithotripsy, prostate resection, cystoscopy, and orthopedic surgeries of the lower limbs. (3) Spinal Anesthesia induced hypotension occurs as a result of blockade of the lumbar sympathetic outflow leading to profound systemic venous, arterial and arteriolar vasodilation causing a decrease in cardiac output as a result of the decreased preload.

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