Efficacy of intrathecal morphine with epidural ropivacaine infusion for postcesarean analgesia. 2010

Ikuomi Mikuni, and Hiroyasu Hirai, and Yuki Toyama, and Osamu Takahata, and Hiroshi Iwasaki
Department of Anesthesiology and Critical Care Medicine, Asahikawa Medical College, Asahikawa, 078-8510, Japan. subetenakusitamamani@yahoo.co.jp

OBJECTIVE To evaluate the analgesia following cesarean delivery and the frequency of side effects of intrathecal morphine when combined with a continuous epidural infusion. METHODS Randomized, double-blinded study. METHODS University hospital. METHODS 76 ASA physical status I and II term parturients undergoing cesarean delivery with combined spinal-epidural anesthesia. METHODS Patients were randomized to one of three groups to receive 0, 50, or 100 microg (Group 0, Group 50, and Group 100, respectively) intrathecal morphine in addition to 8 mg of hyperbaric bupivacaine. Each patient received a continuous epidural infusion of 0.2% ropivacaine at the rate of 6 mL/hr. METHODS 24-hour visual analog pain scores (VAPS), number of patients who requested rescue analgesics, frequency of requests for rescue analgesics per patient, and time interval before the first request for rescue analgesics were recorded. Frequency of pruritus and postoperative nausea and vomiting (PONV) were also recorded. RESULTS Group 50 and Group 100 patients exhibited lower VAPS and longer time intervals before the first request for rescue analgesics, and they requested rescue analgesics less frequently than Group 0 patients. The frequency of pruritus was significantly higher in Group 100 than Group 0. The groups did not differ with regard to PONV. CONCLUSIONS 50 microg and 100 microg of intrathecal morphine improve analgesia when combined with a continuous epidural infusion of 0.2% ropivacaine (6 mL/hr) after cesarean delivery. 50 microg of intrathecal morphine is associated with a low frequency of side effects such as pruritus and PONV.

UI MeSH Term Description Entries
D007278 Injections, Spinal Introduction of therapeutic agents into the spinal region using a needle and syringe. Injections, Intraspinal,Injections, Intrathecal,Intraspinal Injections,Intrathecal Injections,Spinal Injections,Injection, Intraspinal,Injection, Intrathecal,Injection, Spinal,Intraspinal Injection,Intrathecal Injection,Spinal Injection
D009020 Morphine The principal alkaloid in opium and the prototype opiate analgesic and narcotic. Morphine has widespread effects in the central nervous system and on smooth muscle. Morphine Sulfate,Duramorph,MS Contin,Morphia,Morphine Chloride,Morphine Sulfate (2:1), Anhydrous,Morphine Sulfate (2:1), Pentahydrate,Oramorph SR,SDZ 202-250,SDZ202-250,Chloride, Morphine,Contin, MS,SDZ 202 250,SDZ 202250,SDZ202 250,SDZ202250,Sulfate, Morphine
D010147 Pain Measurement Scales, questionnaires, tests, and other methods used to assess pain severity and duration in patients or experimental animals to aid in diagnosis, therapy, and physiological studies. Analgesia Tests,Analogue Pain Scale,Formalin Test,McGill Pain Questionnaire,Nociception Tests,Pain Assessment,Pain Intensity,Pain Severity,Tourniquet Pain Test,Visual Analogue Pain Scale,Analog Pain Scale,Assessment, Pain,McGill Pain Scale,Visual Analog Pain Scale,Analgesia Test,Analog Pain Scales,Analogue Pain Scales,Formalin Tests,Intensity, Pain,Measurement, Pain,Nociception Test,Pain Assessments,Pain Intensities,Pain Measurements,Pain Questionnaire, McGill,Pain Scale, Analog,Pain Scale, Analogue,Pain Scale, McGill,Pain Severities,Pain Test, Tourniquet,Questionnaire, McGill Pain,Scale, Analog Pain,Scale, Analogue Pain,Scale, McGill Pain,Severity, Pain,Test, Analgesia,Test, Formalin,Test, Nociception,Test, Tourniquet Pain,Tests, Nociception,Tourniquet Pain Tests
D010149 Pain, Postoperative Pain during the period after surgery. Acute Post-operative Pain,Acute Postoperative Pain,Chronic Post-operative Pain,Chronic Post-surgical Pain,Chronic Postoperative Pain,Chronic Postsurgical Pain,Pain, Post-operative,Persistent Postsurgical Pain,Post-operative Pain,Post-operative Pain, Acute,Post-operative Pain, Chronic,Post-surgical Pain,Postoperative Pain, Acute,Postoperative Pain, Chronic,Postsurgical Pain,Postoperative Pain,Acute Post operative Pain,Chronic Post operative Pain,Chronic Post surgical Pain,Chronic Postsurgical Pains,Pain, Acute Post-operative,Pain, Acute Postoperative,Pain, Chronic Post-operative,Pain, Chronic Post-surgical,Pain, Chronic Postoperative,Pain, Chronic Postsurgical,Pain, Persistent Postsurgical,Pain, Post operative,Pain, Post-surgical,Pain, Postsurgical,Post operative Pain,Post operative Pain, Acute,Post operative Pain, Chronic,Post surgical Pain,Post-operative Pains,Post-surgical Pain, Chronic,Postsurgical Pain, Chronic,Postsurgical Pain, Persistent
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
D011537 Pruritus An intense itching sensation that produces the urge to rub or scratch the skin to obtain relief. Itching,Pruritis
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
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
D004311 Double-Blind Method A method of studying a drug or procedure in which both the subjects and investigators are kept unaware of who is actually getting which specific treatment. Double-Masked Study,Double-Blind Study,Double-Masked Method,Double Blind Method,Double Blind Study,Double Masked Method,Double Masked Study,Double-Blind Methods,Double-Blind Studies,Double-Masked Methods,Double-Masked Studies,Method, Double-Blind,Method, Double-Masked,Methods, Double-Blind,Methods, Double-Masked,Studies, Double-Blind,Studies, Double-Masked,Study, Double-Blind,Study, Double-Masked

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