Plasma concentrations of bupivacaine during extradural anaesthesia for caesarean section. The effect of adrenaline. 1988

C M Wilson, and J Moore, and R G Ghaly, and R Flynn, and E McClean, and J W Dundee
Department of Anaesthetics, Queen's University of Belfast.

The clinical effects and plasma levels associated with the use of 0.5% bupivacaine with and without the addition of 1:200,000 adrenaline (5 micrograms/ml) were studied in 30 patients who underwent extradural anaesthesia for elective Caesarean section. The addition of adrenaline to bupivacaine prolongs analgesia, reduces the degree of hypotension and delays its onset. Plasma bupivacaine levels were consistently lower when adrenaline was added, but this difference was significant only at 10 minutes after the initial dose. Prolonging the interval between increments seems to be a more reliable way to reduce plasma concentration than the addition of the catecholamine.

UI MeSH Term Description Entries
D011247 Pregnancy The status during which female mammals carry their developing young (EMBRYOS or FETUSES) in utero before birth, beginning from FERTILIZATION to BIRTH. Gestation,Pregnancies
D002045 Bupivacaine A widely used local anesthetic agent. 1-Butyl-N-(2,6-dimethylphenyl)-2-piperidinecarboxamide,Bupivacain Janapharm,Bupivacain-RPR,Bupivacaina Braun,Bupivacaine Anhydrous,Bupivacaine Carbonate,Bupivacaine Hydrochloride,Bupivacaine Monohydrochloride, Monohydrate,Buvacaina,Carbostesin,Dolanaest,Marcain,Marcaine,Sensorcaine,Svedocain Sin Vasoconstr,Bupivacain RPR
D002585 Cesarean Section Extraction of the FETUS by means of abdominal HYSTEROTOMY. Abdominal Delivery,Delivery, Abdominal,C-Section (OB),Caesarean Section,Postcesarean Section,Abdominal Deliveries,C Section (OB),C-Sections (OB),Caesarean Sections,Cesarean Sections,Deliveries, Abdominal
D004338 Drug Combinations Single preparations containing two or more active agents, for the purpose of their concurrent administration as a fixed dose mixture. Drug Combination,Combination, Drug,Combinations, Drug
D004837 Epinephrine The active sympathomimetic hormone from the ADRENAL MEDULLA. It stimulates both the alpha- and beta- adrenergic systems, causes systemic VASOCONSTRICTION and gastrointestinal relaxation, stimulates the HEART, and dilates BRONCHI and cerebral vessels. It is used in ASTHMA and CARDIAC FAILURE and to delay absorption of local ANESTHETICS. Adrenaline,4-(1-Hydroxy-2-(methylamino)ethyl)-1,2-benzenediol,Adrenaline Acid Tartrate,Adrenaline Bitartrate,Adrenaline Hydrochloride,Epifrin,Epinephrine Acetate,Epinephrine Bitartrate,Epinephrine Hydrochloride,Epinephrine Hydrogen Tartrate,Epitrate,Lyophrin,Medihaler-Epi,Acetate, Epinephrine
D005260 Female Females
D006801 Humans Members of the species Homo sapiens. Homo sapiens,Man (Taxonomy),Human,Man, Modern,Modern Man
D000767 Anesthesia, Epidural Procedure in which an anesthetic is injected into the epidural space. Anesthesia, Extradural,Anesthesia, Peridural,Epidural Anesthesia,Anesthesias, Epidural,Anesthesias, Extradural,Anesthesias, Peridural,Epidural Anesthesias,Extradural Anesthesia,Extradural Anesthesias,Peridural Anesthesia,Peridural Anesthesias
D000773 Anesthesia, Obstetrical A variety of anesthetic methods such as EPIDURAL ANESTHESIA used to control the pain of childbirth. Anesthesia, Gynecological,Anesthesia, Obstetric,Gynecologic Anesthesia,Paracervical Block,Anesthesia, Gynecologic,Block, Paracervical,Blocks, Paracervical,Gynecological Anesthesia,Obstetric Anesthesia,Obstetrical Anesthesia,Paracervical Blocks

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