Hyperventilation-induced unconsciousness during labour. 1994

R J Burden, and E L Janke, and D Brighouse
Shackleton Department of Anaesthesia, Southampton General Hospital.

We report the development of unconsciousness caused by hyperventilation in an otherwise healthy woman in labour. Extradural analgesia resulted in restoration of full consciousness and normal respiratory state. The pathophysiology of hyperventilation and aspects of respiratory physiology in pregnancy are discussed.

UI MeSH Term Description Entries
D007040 Hypoventilation A reduction in the amount of air entering the pulmonary alveoli. Hypoventilations
D007744 Obstetric Labor Complications Medical problems associated with OBSTETRIC LABOR, such as BREECH PRESENTATION; PREMATURE OBSTETRIC LABOR; HEMORRHAGE; or others. These complications can affect the well-being of the mother, the FETUS, or both. Complications, Labor,Labor Complications,Complication, Labor,Complication, Obstetric Labor,Complications, Obstetric Labor,Labor Complication,Labor Complication, Obstetric,Labor Complications, Obstetric,Obstetric Labor Complication
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
D005260 Female Females
D006801 Humans Members of the species Homo sapiens. Homo sapiens,Man (Taxonomy),Human,Man, Modern,Modern Man
D000328 Adult A person having attained full growth or maturity. Adults are of 19 through 44 years of age. For a person between 19 and 24 years of age, YOUNG ADULT is available. Adults
D014474 Unconsciousness Loss of the ability to maintain awareness of self and environment combined with markedly reduced responsiveness to environmental stimuli. (From Adams et al., Principles of Neurology, 6th ed, pp344-5) Consciousness, Loss of,Unconscious State,Loss of Consciousness,State, Unconscious,Unconscious States
D015360 Analgesia, Epidural The relief of pain without loss of consciousness through the introduction of an analgesic agent into the epidural space of the vertebral canal. It is differentiated from ANESTHESIA, EPIDURAL which refers to the state of insensitivity to sensation. Epidural Analgesia
D016362 Analgesia, Obstetrical The elimination of PAIN, without the loss of CONSCIOUSNESS, during OBSTETRIC LABOR; OBSTETRIC DELIVERY; or the POSTPARTUM PERIOD, usually through the administration of ANALGESICS. Obstetrical Analgesia,Analgesia, Obstetric,Obstetric Analgesia

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