Colonizacion por estreptococo beta hemolitico del grupo B durante el embarazo y prevencion de enfermedad neonatal / Group B streptococcus colonization during pregnancy and prevention of early onset of disease

El estreptococo beta-hemolítico del grupo B (SGB) es uno de los principales agentes causantes de sepsis neonatal precoz. La mortalidad de los afectados oscila entre el 6 y el 20%, y la tasa de secuela neurológica llega al 30%. En 1996 el Centro de Prevención y Control de Enfermedades de Atlanta, el Colegio Americano de Obstetras y Ginecólogos y la Academia Americana de Pediatría sugirieron en consenso que el personal de atención de salud materna-neonatal debía adoptar una estrategia para la prevención de la sepsis por este germen. Los objetivos del presente trabajo prospectivo fueron determinar el porcentaje de colonización por SGB en las pacientes gestantes asistidas del 1° de julio de 2001 al 31 de diciembre de 2002 e implementar un programa de prevención de sepsis neonatal precoz por SGB a través de profilaxis antibiótica intraparto basado en cultivos. Sobre 1756 pacientes, se realizaron cultivos con hisopado vaginal y anal a 1228 (69.9%). El porcentaje de colonización materna por SGB fue del 1.4% (17 pacientes). Se presentó un caso de sepsis neonatal compatible con SGB (0.6‰) en una madre con cultivo negativo. Sólo una paciente portadora de SGB presentó factores de riesgo. Los resultados nos sugieren continuar con la estrategia de prevención basada en cultivos debido a que la mayoría de las pacientes colonizadas no presentaron factores de riesgo. Son necesarios estudios de relación costo-beneficio en nuestro medio para definir si esta estrategia de prevención es aplicable a la realidad sanitaria argentina.

Colonizacion por estreptococo beta hemolitico del grupo B durante el embarazo y prevencion de enfermedad neonatal / Group B streptococcus colonization during pregnancy and prevention of early onset of disease

El estreptococo beta-hemolítico del grupo B (SGB) es uno de los principales agentes causantes de sepsis neonatal precoz. La mortalidad de los afectados oscila entre el 6 y el 20%, y la tasa de secuela neurológica llega al 30%. En 1996 el Centro de Prevención y Control de Enfermedades de Atlanta, el Colegio Americano de Obstetras y Ginecólogos y la Academia Americana de Pediatría sugirieron en consenso que el personal de atención de salud materna-neonatal debía adoptar una estrategia para la prevención de la sepsis por este germen. Los objetivos del presente trabajo prospectivo fueron determinar el porcentaje de colonización por SGB en las pacientes gestantes asistidas del 1º de julio de 2001 al 31 de diciembre de 2002 e implementar un programa de prevención de sepsis neonatal precoz por SGB a través de profilaxis antibiótica intraparto basado en cultivos. Sobre 1756 pacientes, se realizaron cultivos con hisopado vaginal y an

Complications during set-up procedures for laparoscopy in gynecology: open laparoscopy does not reduce the risk of major complications.

OBJECTIVE: To compare the risk of major complications during the set-up procedures for laparoscopy according to whether the classic technique (creation of the pneumoperitoneum followed by introduction of the optics trocar) or open laparoscopy is used. METHODS: Comparison was made of two retrospective series each carried out in a department promoting one of the two techniques. The setting was a university-affiliated hospital. Two groups of patients were compared: group A, classic laparoscopy, n = 8324; group B, open laparoscopy, n = 1562. We investigated the set-up procedures of operative laparoscopy according to the rules of classic or open laparoscopy. RESULTS: The risk of failure requiring conversion to laparotomy is significantly higher in the group of patients who underwent open laparoscopy [three cases (0.19%) vs. 0 case (0.0%); p = 0.004]. The risk of major complications is comparable in the two groups [group A, four cases (0.05%) vs. group B, three cases (0.19%); p = 0.08]. In the classic laparoscopy group there were four major complications: one injury to the aorta and three bowel injuries. In the open laparoscopy group there were three major complications: two bowel injuries and one postoperative occlusion. CONCLUSIONS: Open laparoscopy does not reduce the risk of major complications during the set-up procedures for laparoscopy. Randomized prospective trials are indispensable for comparing the risks involved with the classic technique and those of open laparoscopy.

Pregnancy outcome and deliveries following laparoscopic myomectomy.

Uterine rupture after myomectomy by laparotomy is not a common occurrence. Some case reports of uterine rupture after laparoscopic myomectomy (LM) raise the question of the quality of the uterine scar produced when this technique is performed. In order to assess the outcome of pregnancies and deliveries after LM and to assess the risk of uterine rupture, we performed an observational study. Questionnaires were mailed to all women who had had LM for at least one intramural or subserosal myoma of more than 20 mm diameter and who were aged <45 years. Ninety-eight patients became pregnant at least once after LM, giving a total of 145 pregnancies. Among the 100 patients who had delivery, there were three cases of spontaneous uterine rupture. Because only one of these uterine ruptures occurred on the LM scar, the risk of uterine rupture was 1.0% (95% CI 0.0-5. 5%). Seventy-two patients (72.0%) had trials of labour. Of these, 58 (80.6%) were delivered vaginally. There was no uterine rupture during the trials of labour. Spontaneous uterine rupture seems to be rare after LM. This risk should not deter the use of LM if needed. When performing LM, particular care must be given to the uterine closure.

Reproductive outcome after laparoscopic myomectomy in infertile women.

OBJECTIVE: To assess reproductive outcome after laparoscopic myomectomies for interstitial and/or subserosal myomas in infertile women with or without associated infertility factors. STUDY DESIGN: In this observational study, 91 women with infertility for one year and at least one interstitial and/or subserosal myoma > 20 mm were treated with laparoscopic myomectomy. All patients were mailed questions about fertility and pregnancy outcome. Cumulative pregnancy rates were calculated by the Kaplan-Meier method. The log rank test and Cox's model were used for comparing the spontaneous pregnancy rate in patients with and without associated infertility factors. RESULTS: The mean age of the patients was 35 +/- 4 years. The mean duration of infertility was 44 +/- 33 months. Twenty-five patients (27.5%) had no associated infertility factors, and 66 (72.5%) had one or more. The mean size of the largest myomas was 45 +/- 19 mm. The mean number of myomas removed was 2.0 +/- 1.4. Eighty-six patients had laparoscopic myomectomy (94.5%), and five had laparoscopically assisted myomectomy (5.5%). There were no conversions to laparotomy. Ten patients were lost to follow-up (11.0%). Among the 91 patients treated surgically, 81 (89.0%) of them were evaluated. Forty-three (53.1%) conceived, resulting in a total of 51 pregnancies. The two-year overall cumulative conception rate was 51.2% (95% confidence interval [CI], 39.2-63.2%). The two-year spontaneous pregnancy rate was 43.9% (95% CI, 32.1-55.7%). This rate was 69.9% (95% CI, 50.3-89.5%) for patients with no associated factors and 31.5% (95% CI, 18.4-44.6%) for patients with associated factors (P < .001). This result was not affected by adjusting for age or duration of infertility. CONCLUSION: Laparoscopic myomectomy seems to be a good procedure for patients with myomas and no other infertility factors. In cases with associated infertility factors, the need for myomectomy has to be studied.

[Myomectomy by laparoscopy and infertility: status of the controversy]. / Myomectomie par coelioscopie et infertilité: état de la controverse.

The ratio between benefit and risk of laparoscopic myomectomy in infertile patients is controversial. Based on literature data and their personal experience, the authors discuss the place of laparoscopic myomectomy in the care of infertile patients.

Second look after laparoscopic myomectomy.

The goal of this study was to assess the risk of adhesions after laparoscopic myomectomy. To this end our enquiry was based on observations with a prospective collection of data. Between October 26, 1990 and October 1, 1996, 45 patients underwent a second look after laparoscopic myomectomy. Seventy-two myomectomy sites were checked. The overall rate of postoperative adhesion was 35.6% per patient. The rate of adhesions per myomectomy site was 16.7%. The factors which influenced the occurrence of an adhesion on the myomectomy site were posterior location of the myoma and the existence of sutures. The rate of adhesions on the adnexa after laparoscopic myomectomy was 24.4%. The factors which influenced the occurrence of adnexal adhesions were another surgical procedure carried out at the same time, the existence of adhesions prior to the operation and posterior location of the myoma. The rate of adhesions after laparoscopic myomectomy is low and the adhesions rarely involved the adnexa. We recommend that a second-look laparoscopy be carried out systematically after laparoscopic myomectomy in patients desiring pregnancy.

Laparoscopic myomectomy and myolysis.

The indications for operative laparoscopy have expanded greatly over the past decade as its many advantages over laparotomy have become recognized. Laparoscopic myomectomy as a technique is now clearly described. A monopolar hook is used for the uterine incision. After atraumatic enucleation of the myoma, the myometrium and serosa are usually sutured, especially if the incision is deep or more than 2 cm long. Myomas can be removed by posterior colpotomy. However, the development of an electrical cutting device permits easier and quicker removal of the myoma through the suprapubic puncture site. Only complicated myomas or those which give rise to persistent symptoms despite properly prescribed medical treatment, together with those which grow rapidly, require surgery. These satisfactory preliminary results must not mask the fact that laparoscopic myomectomy is lengthy and difficult, reserved for experienced surgeons with a thorough familiarity with endoscopic sutures. Under these conditions, laparoscopic myomectomy is possible, even for large myomas (5 cm and over) located purely intramurally. However, there are limits, and it is preferable to schedule myomas measuring over 8 cm and multiple myomectomy (over two) for laparotomy. Although the preliminary results are encouraging, the risk of adhesiogenesis on the uterine scar, the quality of the uterine suture and the fertility results need to be assessed in the near future.