Acta obstetricia et gynecologica Scandinavica
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Acta Obstet Gynecol Scand · Jan 1979
Acid-base balance during laparoscopy. The effects of intraperitoneal insufflation of carbon dioxide and nitrous oxide on acid-base balance during controlled ventilation.
During laparoscopy the carbon dioxide used to achieve a pneumoperitoneum is absorbed from the peritoneal cavity into the blood. The object of the present study was to clarify certain aspects concerned with anesthetic and ventilatory techniques, mostly in connection with the comparison between the effects of insufflation of either carbon dioxide or nitrous oxide. ⋯ The results show a sharp rise in PaCO2 and a fall in pH after intraperitoneal insufflation with carbon dioxide, while no changes were observed when nitrous oxide was used. The clinical consequences of these findings are discussed.
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Acta Obstet Gynecol Scand · Jan 1979
Comparative StudySegmental epidural analgesia for labor and delivery.
A study to evaluate segmental epidural analgesia in labor is described. Bupivacaine (0.25 per cent) was used during the first stage of labor and for the second stage, either 3 per cent - Chloroprocaine delivered through the catheter (Group I) or 1 per cent Lidocaine as a perineal infiltrate (Group II) was used. There were 124 full term patients of whom, 36 were nulliparous and 88 were multiparous. ⋯ There were no significant changes in maternal blood pressure, motor power in lower limbs, efficiency of uterine contractions and internal rotation of the presenting part when analgesia was effective. The use of 2-Chloroprocaine for second stage pain relief required low forceps delivery in 84 (91 per cent) patients, as compared to 14 (44 per cent) patients that had 1 per cent Lidocaine local infiltration. Fetal outcome, was excellent in all cases in that the one minute Apgar score was never lower than 7.
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Acta Obstet Gynecol Scand · Jan 1979
Effect of induction of general anesthesia for cesarean section on intervillous blood flow.
Intervillous blood flow was measured by a new intravenous 133Xe method before and during induction of general anesthesia for cesarean section in 10 healthy mothers. The flow values showed a highly significant decrease (p less than 0.001) (35 per cent on an average) at the time of anesthesia compared with the control values. The impairment was observed in all the cases. The role of the maternal changes in hemodynamic parameters and acid-base balance as a background of this decrease is discussed.
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Acta Obstet Gynecol Scand · Jan 1979
Randomized Controlled Trial Clinical TrialBromocriptine treatment of the premenstrual syndrome.
Bromocriptine, 2.5 mg twice a day was tested for its effect on premenstrual tension in a random double-blind cross-over trial. 1. The compound tended to lessen the symptoms, especially mastodynia. 2. Serum prolactin levels around the upper limit of the normal range were significantly lowered. ⋯ Serum estradiol-17-beta and progesterone did not change during treatment. 4. The bromocriptine-treated cycles were all ovulatory according to basal temperature levels. The luteal phase was prolonged when serum FSH was raised.
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Acta Obstet Gynecol Scand · Jan 1979
Segmental epidural analgesia in labour: related to the progress of labour, fetal malposition and instrumental delivery.
The effect of low-dose continuous segmental epidural analgesia given during the first stage of labour on the progress of labour, the frequency of fetal malpositions and the rate of vacuum extractions was studied prospectively in 100 parturients (epidural group). The results were compared with 100 parturients given none or conventional analgesia (control group). The results showed that in the primiparous epidural group the progress of labour before analgesia was induced was significantly slower than in the control group. ⋯ The differences in fetal malpositions at delivery were statistically insignificant. Nor did the rate of vacuum extractions, 8% in the primiparous and 0% in the multiparous epidural group, differ statistically from the corresponding rate in the control groups. The results signify a normal progress and outcome of labour after low-dose segmental epidural analgesia.