Nitrous oxide-oxygen analgesia and anaesthesia in normal labor and operative obstetrics . e Usual DepletedAppearance of the Woman Having LaboredWithout Analgesia % A Notable Result ofTHIS Protection Against Exhaustion of theMother and her Freedom from Blood andTissue Changes is Manifested in the EarlyAppearance of Breast Milk of Good Qual-ity % The Early Puerperium is Pleasanter,the Mother Requiring Comparatively LittleAttention % There is an Actual Shorteningof the Convalescent Period % —Arthur E. GuedeL .53J Further Effects on Mother and Child % Headache % ControlOF Nausea and Vomiting % Con
Nitrous oxide-oxygen analgesia and anaesthesia in normal labor and operative obstetrics . e Usual DepletedAppearance of the Woman Having LaboredWithout Analgesia % A Notable Result ofTHIS Protection Against Exhaustion of theMother and her Freedom from Blood andTissue Changes is Manifested in the EarlyAppearance of Breast Milk of Good Qual-ity % The Early Puerperium is Pleasanter,the Mother Requiring Comparatively LittleAttention % There is an Actual Shorteningof the Convalescent Period % —Arthur E. GuedeL .53J Further Effects on Mother and Child % Headache % ControlOF Nausea and Vomiting % Conservation of Muscle Tone %Protection Against Hemorrhage. Acidosis and Bacterial Inva-sion % Physical Well-Being of Mothers after Labor % EarlyFlow of Milk % The Reaction of Varying Types of Patients %Handling Difficult Patients % Primiparae and of Nitrous Oxide Anaesthesia and Analgesia on theChild % Mechanism of Protection % Cyanosis % Pink Babies %Minimal Effects on the Unborn Child % Time Limit of Admin-istration % Nitrous Oxide no Panacea for Poor Obstetrics %. LTHOUGH THE FUNDAMENTAL physio-patho-logical effects of nitrous oxide-oxygen analgesia and an-aesthesia have been rather thoroughly reviewed, there arecertain other general effects on the mother and child whichmust not be overlooked. Perhaps the most unpleasEutiteffect that has been noticed as occurring, with any recog-nized degree of frequency, is headache, usually of a mild and transitory char-acter. This headache may be due to too intensive an administration of thenitrous oxide, rebreathing or an inadequate amount of oxygenation, permittinga very light degree of cyanosis over a long time. Thorough oxygenation afterdelivery goes far in avoiding this complicating aftermath. Control of Nausea and Vomiting.—^All observers are agreed thatunder nitrous oxide-oxygen analgesia and anaesthesia there is less nausea andvomiting than under any other form of general narcosis. A number of in-stances are o
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