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Smooth muscle effects of lidocaine, prilocaine, bupivacaine and etiodocaine on the human umbilical artery. 1982

T Tuvemo, and G Willdeck-Lund

The smooth muscle effects on human umbilical arteries of four different local anaesthetic agents - lidocaine, etidocaine, prilocaine and bupivacaine - were studied. Lidocaine and etidocaine relaxed the arteries, etidocaine more profoundly than lidocaine. Prilocaine in the concentration range 10-1,000 micrograms/ml caused pronounced contractions. Bupivacaine consistently evoked a contractile response in the concentration range 5-25 micrograms/ml, but at lower and higher concentrations the response to this drug was inconsistent. The concentrations of lidocaine were determined in six human umbilical arteries following maternal epidural block with this agent and were found to be 0.1 - 1.7 micrograms/g tissue. The contractile actions of prilocaine and bupivacaine on the human umbilical arteries are undesirable and might be hazardous if high concentrations are attained, e.g. during paracervical block.

UI MeSH Term Description Entries
D008012 Lidocaine A local anesthetic and cardiac depressant used as an antiarrhythmia agent. Its actions are more intense and its effects more prolonged than those of PROCAINE but its duration of action is shorter than that of BUPIVACAINE or PRILOCAINE. Lignocaine,2-(Diethylamino)-N-(2,6-Dimethylphenyl)Acetamide,2-2EtN-2MePhAcN,Dalcaine,Lidocaine Carbonate,Lidocaine Carbonate (2:1),Lidocaine Hydrocarbonate,Lidocaine Hydrochloride,Lidocaine Monoacetate,Lidocaine Monohydrochloride,Lidocaine Monohydrochloride, Monohydrate,Lidocaine Sulfate (1:1),Octocaine,Xylesthesin,Xylocaine,Xylocitin,Xyloneural
D008431 Maternal-Fetal Exchange Exchange of substances between the maternal blood and the fetal blood at the PLACENTA via PLACENTAL CIRCULATION. The placental barrier excludes microbial or viral transmission. Transplacental Exposure,Exchange, Maternal-Fetal,Exposure, Transplacental,Maternal Fetal Exchange
D009119 Muscle Contraction A process leading to shortening and/or development of tension in muscle tissue. Muscle contraction occurs by a sliding filament mechanism whereby actin filaments slide inward among the myosin filaments. Inotropism,Muscular Contraction,Contraction, Muscle,Contraction, Muscular,Contractions, Muscle,Contractions, Muscular,Inotropisms,Muscle Contractions,Muscular Contractions
D009126 Muscle Relaxation That phase of a muscle twitch during which a muscle returns to a resting position. Muscle Relaxations,Relaxation, Muscle,Relaxations, Muscle
D009131 Muscle, Smooth, Vascular The nonstriated involuntary muscle tissue of blood vessels. Vascular Smooth Muscle,Muscle, Vascular Smooth,Muscles, Vascular Smooth,Smooth Muscle, Vascular,Smooth Muscles, Vascular,Vascular Smooth Muscles
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
D011318 Prilocaine A local anesthetic that is similar pharmacologically to LIDOCAINE. Currently, it is used most often for infiltration anesthesia in dentistry. Propitocaine,Citanest,Citanest Octapressin,Prilocaine Hydrochloride,Xylonest
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
D004305 Dose-Response Relationship, Drug The relationship between the dose of an administered drug and the response of the organism to the drug. Dose Response Relationship, Drug,Dose-Response Relationships, Drug,Drug Dose-Response Relationship,Drug Dose-Response Relationships,Relationship, Drug Dose-Response,Relationships, Drug Dose-Response
D005041 Etidocaine A local anesthetic with rapid onset and long action, similar to BUPIVACAINE. 2-(Ethylpropylamino)-2',6'-butyroxylidide,Duranest,W-19053,W 19053,W19053

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