Biomaterial Database

Controlled hypotensive anesthesia during spinal surgery. A retrospective study. 1984

S M Lawhon, and A Kahn, and A H Crawford, and M S Brinker

A retrospective study has been made of 264 posterior spinal fusions performed between 1972 and 1978 at the Good Samaritan Hospital in Cincinnati. Two hundred ten of the procedures were performed under hypotensive anesthesia. Blood loss and total blood replacement were related to the mean arterial pressure (MAP) during surgery. A 42% reduction in total intraoperative loss and a 28%reduction in total blood requirements were demonstrated. The results were significantly different when patient age was considered in adults maintained below 80 mmHg MAP, blood loss was decreased by 33%, but the total blood requirement was decreased by only 6%; in children under 18 years of age maintained below 90 mmHg MAP, the blood loss was decreased by 49% and the blood requirement by 42%.

UI	MeSH Term	Description	Entries
D007023	Hypotension, Controlled	Procedure in which arterial blood pressure is intentionally reduced in order to control blood loss during surgery. This procedure is performed either pharmacologically or by pre-surgical removal of blood.	Controlled Hypotension,Hypotension, Induced,Induced Hypotension
D008875	Middle Aged	An adult aged 45 - 64 years.	Middle Age
D002648	Child	A person 6 to 12 years of age. An individual 2 to 5 years old is CHILD, PRESCHOOL.	Children
D002675	Child, Preschool	A child between the ages of 2 and 5.	Children, Preschool,Preschool Child,Preschool Children
D006801	Humans	Members of the species Homo sapiens.	Homo sapiens,Man (Taxonomy),Human,Man, Modern,Modern Man
D000293	Adolescent	A person 13 to 18 years of age.	Adolescence,Youth,Adolescents,Adolescents, Female,Adolescents, Male,Teenagers,Teens,Adolescent, Female,Adolescent, Male,Female Adolescent,Female Adolescents,Male Adolescent,Male Adolescents,Teen,Teenager,Youths
D000328	Adult	A person having attained full growth or maturity. Adults are of 19 through 44 years of age. For a person between 19 and 24 years of age, YOUNG ADULT is available.	Adults
D000758	Anesthesia	A state characterized by loss of feeling or sensation. This depression of nerve function is usually the result of pharmacologic action and is induced to allow performance of surgery or other painful procedures.
D012189	Retrospective Studies	Studies used to test etiologic hypotheses in which inferences about an exposure to putative causal factors are derived from data relating to characteristics of persons under study or to events or experiences in their past. The essential feature is that some of the persons under study have the disease or outcome of interest and their characteristics are compared with those of unaffected persons.	Retrospective Study,Studies, Retrospective,Study, Retrospective
D013123	Spinal Fusion	Operative immobilization or ankylosis of two or more vertebrae by fusion of the vertebral bodies with a short bone graft or often with diskectomy or laminectomy. (From Blauvelt & Nelson, A Manual of Orthopaedic Terminology, 5th ed, p236; Dorland, 28th ed)	Spondylodesis,Spondylosyndesis,Fusion, Spinal,Fusions, Spinal,Spinal Fusions,Spondylodeses,Spondylosyndeses