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  • 1
    ISSN: 1432-055X
    Keywords: Schlüsselwörter: Allgemeinnarkose – Ketamin – In-vitro-Fertilisations-Embryotransfer (IVF-ET) – Prolaktin –β-Endorphine ; Key words: General anaesthesia – Ketamine – In vitro fertilization-embryo transfer – Prolactin –β-endorphins
    Source: Springer Online Journal Archives 1860-2000
    Topics: Medicine
    Description / Table of Contents: Abstract. Different anaesthetic procedures that were used during an in vitro fertilisation and embryo transfer (IVF-ET) program have been analysed in order to determine their influence on plasma levels of estradiol, progesterone, prolactin, and β-endorphin and results of IVF-ET. Methods. Fifty-four patients awaiting transvaginal oocyte aspiration were randomised into three groups: (1) anaesthesia with ketamine as an induction agent and analgesic (n=20); (2) general intubation anaesthesia using thiopentone for induction and enflurane for maintenance (n=18); and (3) no anaesthesia (n=16). Estradiol, progesterone, prolactin, and β-endorphin were measured from day 3 to 14 referring to follicle aspiration. Differences between preoperative hormone levels and their intra- and postoperative peaks were analysed using the Kruskal-Wallis test (P〈0.03). The results were corrected using the Holms method (α=0.05). Results. No differences were observed in estradiol and progesterone levels (Figs. 1, 2). Prolactin levels were 1.4 times higher (P〈0.001) when ketamine was used and 2.2 times higher (P〈0.001) after short general anaesthesia than in the control group (Fig. 3). Similar results were observed with respect to β-endorphin: in comparison with the control group we found significant elevation by a factor of 2.1 when ketamine was used (P〈0.001). The discrepancy became even more marked with general anaesthesia: β-endorphin was 3.9 times higher compared to the controls (P〈0.001) (Fig. 4). Comparing the two groups who were given anaesthetics, prolactin and β-endorphin levels were also significantly different (P〈0.001). The IVF procedure itself did not appear to be affected by different anaesthetic procedures during oocyte aspiration (Table 2). Conclusions. The increased prolactin and β-endorphin plasma levels associated with ketamine and general anaesthesia reflect a significant alteration of the observed hormone levels. When anaesthesia is indicated, we try to avoid general intubation anaesthesia in favor of ketamine.
    Notes: Zusammenfassung. Im Rahmen der in-vitro-Fertilisations-Embryotransfer-(IVF-ET-)Behandlung werden bei der Oozytengewinnung u. a. systemische Kurznarkosen eingesetzt. Ihr Einfluß auf die Östradiol-, Progesteron-, Prolaktin- und β-Endorphin-Plasmaspiegel sowie auf die Ergebnisse der IVF-Verfahren wurde an 54 Patientinnen untersucht. Diese wurden vor einer geplanten transvaginalen Follikelpunktion zwischen einer Narkose mit Ketamin als Einleitungshypnotikum und Analgetikum (n=20), einer "Allgemeinnarkose" mit Thiopental als Einleitungs- und Enfluran als Inhalationsnarkotikum (n=18) und einer Kontrollgruppe ohne Anästhesie (n=16) randomisiert. Die Hormonspiegelbestimmungen erfolgten peri- und intraoperativ zwischen Tag −3 und +14. Die Differenzbeträge zum individuellen Vor- bzw. Nullwert wurden mittels Kruskal-Wallis-Test analysiert (p〈0,03) und nach dem Holm-Verfahren korrigiert (α=0,05). Der Prolaktinspiegel war unter Ketaminanästhesie 1,4fach und Allgemeinanästhesie 2,2fach gegenüber der Kontrollgruppe erhöht (jeweils p〈0,001). Auch die β-Endorphine stiegen um den Faktor 2,1 (p〈0,001) bzw. 3,9 (p〈0,001) signifikant an. Beim Vergleich der Narkoseformen untereinander waren Prolaktin- sowie Endorphinspiegel ebenfalls signifikant unterschiedlich (p〈0,001). Keine Unterschiede ergaben sich bezüglich der Östradiol- und Progesteronspiegel sowie in bezug auf die IVF-Durchführung und die klinischen Ergebnisse nach Embryotransfer. Wenngleich die klinischen Ergebnisse der IVF-Behandlung nicht durch den Einsatz der Narkoseverfahren beeinflußt wurden, sollte dennoch ein Anästhesieverfahren mit einer geringen Beeinflussung der Hormonspiegel gewählt werden. In unserer Untersuchung war dies die Ketaminnarkose ohne endotracheale Intubation.
    Type of Medium: Electronic Resource
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  • 2
    ISSN: 1432-0711
    Source: Springer Online Journal Archives 1860-2000
    Topics: Medicine
    Type of Medium: Electronic Resource
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  • 3
    Electronic Resource
    Electronic Resource
    Springer
    Archives of gynecology and obstetrics 245 (1989), S. 687-688 
    ISSN: 1432-0711
    Source: Springer Online Journal Archives 1860-2000
    Topics: Medicine
    Type of Medium: Electronic Resource
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  • 4
    Electronic Resource
    Electronic Resource
    Springer
    Archives of gynecology and obstetrics 245 (1989), S. 695-697 
    ISSN: 1432-0711
    Source: Springer Online Journal Archives 1860-2000
    Topics: Medicine
    Type of Medium: Electronic Resource
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  • 5
    Electronic Resource
    Electronic Resource
    Springer
    Surgical endoscopy and other interventional techniques 12 (1998), S. 1326-1333 
    ISSN: 1432-2218
    Keywords: Key words: Laparoscopy — Ovarian tumors — Ovarian carcinoma — Borderline tumors — Vaginal ultrasound
    Source: Springer Online Journal Archives 1860-2000
    Topics: Medicine
    Notes: Abstract Background: Laparoscopy can be used with minimal operative morbidity to evaluate adnexal masses. We report our experience with the endoscopic approach to the diagnosis and treatment of ovarian tumors. In particular, we describe 11 patients who incidentally underwent laparoscopy and in whom the ovarian masses were found to be malignant. Methods: Between September 1994 and September 1996, 292 patients with 316 ovarian tumors were treated laparoscopically in the Department of Obstetrics–Gynaecology, University of Ulm. We assessed vaginal ultrasonography, clinical assessment, the tumor marker CA 12-5, and the intraoperative low-power magnification for their value in predicting the final diagnosis in all laparoscopically treated ovarian tumors. Results: From a total of 292 patients with ovarian tumors, 11 were diagnosed, intraoperatively or after final histologic examination, as having a malignant or borderline ovarian tumor. All applied pre- and intraoperative diagnostic procedures were by themselves too unreliable to exclude early stages of ovarian carcinoma exactly. Conclusions: On the basis of the present findings, we are tempted to conclude that laparoscopic surgery is justified in the management of ovarian tumors. Even with an accurate preoperative selection of suitable patients for laparoscopic surgery, the presence of an undetected ovarian carcinoma cannot be entirely excluded.
    Type of Medium: Electronic Resource
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