Korean J Anesthesiol.  1989 Dec;22(6):806-812. 10.4097/kjae.1989.22.6.806.

The Dosage of Sodium Nitroprusside and its Effects on the Cardiovascular System for Deliberate Hypotension in Halothane Anesthesia

Affiliations
  • 1Department of Anesthesiology, College of Medicine, Seoul National University, Seoul, Korea.
  • 2Department of Orthopedic Surgery, College of Medicine, Seoul National University, Seoul, Korea.

Abstract

The effects of deliberate hypotension by sodium nitroprusside (SNP) on the cardiovascular system and dosage of SNP were studied in 10 patients undergone Cotrel-Dubousset instrumentation for the operative treatment of scoliosis, spinal stenosis or herniated intervertebral disc. Mean arterial pressure decreased significantly (p<0.05), but cardiac output, central venous pressure and sytemic vascular resistance showed no significant change, The correlations between average dose of SNP and age, body weight, and age to weight ratio were r= -0.4 (p>0.05), r= -0.2 (p>0.05), and r= - 0.25 (p>0.05) respectively. The amount of whole blood transfused during the operation was 5. 3+/-1 .7 units. Hemoglobin and hematocrit decreased significantly (p<0.05) from 11.3+/-1.3g/dl and 33.7+/-4.1% to 10.1+/-1.5g/dl and 30+/-4.1% during operation.

Keyword

Sodium nitroprusside; Deliberate hypotension; Cotrel-Dubousset instrumentation

MeSH Terms

Anesthesia*
Arterial Pressure
Body Weight
Cardiac Output
Cardiovascular System*
Central Venous Pressure
Halothane*
Hematocrit
Humans
Hypotension*
Intervertebral Disc
Nitroprusside*
Scoliosis
Sodium*
Spinal Stenosis
Vascular Resistance
Halothane
Nitroprusside
Sodium
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