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Journal ArticleDOI

The Effects of Anesthesia on Blood Loss at Caesarean Section

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TLDR
Blood loss was measured in 100 women undergoing caesarean section under a basic anesthetic technique of a short‐acting barbiturate, 63 % nitrous oxide and gallamine, with either one of the following three agents, halothane, fentanyl or meperidine given intravenously for additional analgesia after delivery of the baby.
Abstract
Blood loss was measured in 100 women undergoing caesarean section under a basic anesthetic technique of a short-acting barbiturate, 63 % nitrous oxide and gallamine, with either one of the following three agents, halothane (0.5–1.0 % inspired), fentanyl 0.1 mg and droperidol 5 mg, or meperidine (pethidine) 50–125 mg given intravenously for additional analgesia after delivery of the baby. For the post-delivery period, operative blood loss averaged 505 ml and 399 ml in the two groups of 25 patients each receiving halothane “analgesia”. The operative blood losses with fentanyl-droperidol analgesia (25 patients) or meperidine analgesia (25 patients) averaged 489 ml and 498 ml. Similar results were found for the amount of postoperative bleeding, where halothane averaged 218 ml and 130 ml, whereas fentanyl-droperidol and meperidine averaged 185 ml and 125 ml. No significant difference could be detected in blood loss associated with caesarean section, whether halothane, fentanyl-droperidol or meperidine was used for post-delivery analgesia. ZUSAMMENFASSUNG Es wurde bei 100 weiblichen Patienten, welche zur Sectio caesaria in folgender Weise narkotisiert wurden: kurzwirksames Barbiturat, 63% Lachgas und Gallamin zusammen mit einem der drei Stoffe, Halothan (0,5-1% inspiratorische Konzentration), Fentanyl 0,1 mg und Droperidol 5 mg oder Dolantin 50-125 mg intravenos zur zusatlichen Analgesie nach der Entbindung des Kindes - der Blutverlust gemessen. Fur die Zeitspanne nach der Abnabelung betrug der operative Blutverlust bei den zwei Gruppen von je 25 Patienten, welche Halothan-“Anal-gesie” erhielten, durchschnittlich 505 bzw. 399 ml. Der operative Blutverlust bei Fentanyl-Droperidol-Analgesie (25 Patienten) oder Dolantin-Analgesie (25 Patienten) betrug durchschnittlich 489 ml bzw. 498 ml. ahnliche Ergebnisse hinsichtlich der Menge postoperativen Blutverlustes wurden bei Halothan mit durchschnittlich 218 ml bzw. 130 ml gefunden, wahrend bei Fentanyl-Droperidol oder Dolantin-Verabreichung dieser durchschnittlich 185 ml bzw. 125 ml ausmachte. Es konnte kein signifikanter Unterschied des Blutverlustes bei Kaiserschnitt in Halothan, Fentanyl-Droperidol oder Dolantin-Verabreichung zur Analgesie nach der Entbindung festgestellt werden.

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Citations
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Journal ArticleDOI

Anesthesia for cesarean section: Further studies

TL;DR: Observations of the infants immediately after delivery led us to conclude that either anesthesia technique is acceptable for elective cesarean section.
Journal ArticleDOI

Operative Obstetrics. THE EFFECTS OF ANESTHESIA AND PULMONARY VENTILATION ON BLOOD LOSS DURING ELECTIVE THERAPEUTIC ABORTION

TL;DR: Uterine blood loss was measured in 87 healthy women undergoing elective therapeutic abortion while anesthetized with any of eight anesthetic or ventilatory techniques, and blood losses with all anesthetics, except nitrous oxide plus adjuvants, were significantly larger than the 25 ml loss observed with paracervical-block anesthesia.
Journal ArticleDOI

Anesthesia for cesarean section: minimizing risk and complications.

TL;DR: Emphasis on regional anesthesia when possible and utilization of state-of-the-art monitoring such as pulse oximetry and end-tidal capnography will improve the anesthetic outcome.
References
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Journal ArticleDOI

ANAESTHESIA FOR CAESAREAN SECTION: An Evaluation of a Method using Low Concentrations of Halothane and 50 per cent of Oxygen

TL;DR: The addition of 0.5 per cent of halothane vapour to a basic thiopentone, nitrous oxide, muscle relaxant anaesthetic technique does not increase blood loss at Caesarean section, does not affect the incidence of hypotension, and is likely to ensure unconsciousness.
Journal ArticleDOI

Blood loss in obstetrics using a haemoglobin dilution technique

TL;DR: In a series of 580 obstetric cases at the Queen Mother’s Hospital, Glasgow, the Perdometer was set out to calculate blood loss according to mode of delivery, age and parity.
Journal ArticleDOI

Changes in myometrial sensitivity to oxytocin in man during the last six weeks of pregnancy

TL;DR: This is the first study in which data have been determined in the same woman at roughly weekly intervals from as early as the 32nd week of pregnancy up to the spontaneous onset of labour.
Journal ArticleDOI

The place of halothane in obstetrics

TL;DR: Halothane is not recommended for obstetrical anaesthesia except when uterine relaxation is needed and it is emphasized that the relaxation obtained, unless carefully controlled, may fail to respond to ergometrine and oxytocic posterior pituitary extract.
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