Periodo intergenésico: Revisión de la literature / Intergenesis period: Literature review

RESUMEN ANTECEDENTES: El período intergenésico es importante para la planificación de embarazos subsecuentes a partos, cesáreas y abortos. Actualmente existe falta de consenso en cuanto a las definiciones e importancia clínica de la duración del periodo intergenésico; por lo que se realiza esta revisión de la literatura para definir conceptos. MÉTODO: Se realizó una búsqueda bibliográfica en Pubmed y Medline, con periodo de búsqueda del 19992017, con el propósito de identificar publicaciones de relevancia relacionadas a periodo intergenésico. RESULTADOS: Entre los artículos seleccionados, se incluyeron de tipo revisión, originales y guías de práctica clínica. Se considera periodo intergenésico aquel que se encuentra entre la fecha del último evento obstétrico y el inicio del siguiente embarazo. Se sugiere como tiempo recomendado de espera para iniciar un siguiente embarazo mínimo 18 meses (Periodo intergenésico corto, PIC) y no más de 60 meses (Periodo intergenésico largo, PIL), para reducir el riesgo de eventos adversos maternos, perinatales y neonatales. Se debe enfatizar que aunque la dehiscencia de histerorrafia es una grave complicación del PIC menor a 6 meses posterior a una cesárea, no es su única complicación. De igual manera es importante tomar en cuenta el PIL durante la evaluación obstétrica, debido a su asociación con preeclampsia. CONCLUSIONES: Es relevante conocer la terminología adecuada en período intergenésico para evitar complicaciones asociadas a PIC como a PIL. Existe necesidad de estudios clínicos sobre período intergenésico que permitan conocer más consecuencias a corto y largo plazo en nuestra población y tomar medidas para mejorar el desenlace materno-fetal.

ABSTRACT BACKGROUND: Interpregnancy interval is a topic of importance when planning new pregnancies after previous vaginal delivery, cesarean section or abortion. There is currently a lack of consensus in terms of definitions and the clinical importance of interpregnancy interval length, which is the reason to perform a literature review to clarify concepts. METHODS: Published papers from 1999 to 2017 from PubMed/MEDLINE were searched with the purpose of identifying those related to interpregnancy interval. Review articles, original papers, and clinical guidelines in relation to short and long interpregnancy interval were considered. RESULTS: Interpregnancy interval is defined as the period between the last obstetric event and the beginning of the next pregnancy (last menstrual period). Recommended time to initiate the next pregnancy must be at least 18 months (short interpregnancy interval, SII) and no more than 60 months (long interpregnancy interval, LII) to reduce the risk of adverse maternal, perinatal and neonatal outcomes. It is important to emphasize that even though uterine scar dehiscence is a serious complication of SII less than 6 months after a cesarean section, it is not the only complication. It is important to consider LII during obstetric evaluation, due to its association with preeclampsia. CONCLUSION: It is clinically relevant to know the correct definitions of SII and LII to avoid their complications. There is also a need for clinical trials about interpregnancy interval within our population in order to better understand the consequences of SII and LII, thus taking the necessary measures to improve maternal and fetal outcomes.

[Small bowel obstruction secondary to incomplete torsion of proximal ileum following laparoscopic hysterectomy. Case report]. / Oclusión intestinal por torsión incompleta de íleon proximal post histerectomía laparoscópica. Un caso clínico.

A minimally invasive approach for gynecologic procedures has become popular in recent years. Despite the advantages of this kind of surgery over open technique, laparoscopic hysterectomy is not free of complications. A case of small bowel obstruction secondary to incomplete torsion of proximal ileum ten days after an uneventful total laparoscopic hysterectomy is reported. Partial small bowel obstruction (PSBO) is a rare complication after gynecologic laparoscopy; its post-operatory incidence is 0.036% within a month after. A clean, adequate surgical technique, with minimal manipulation of internal organs, reduces the risk of adhesive process and PSBO.

[Asynchronous birth in twin pregnancy. Literature review and case report]. / Nacimiento asincrónico en embarazo gemelar. Revisión de la bibliografia y reporte de un caso.

BACKGROUND: The incidence of multiple pregnancy has grown, some of these cases are attributed to assisted reproduction techniques, with the consequent increase of maternal-fetal morbidity. There have been few reported cases of delayed interval delivery with different perinatal outcomes. This is a case report of a double twin pregnancy with delayed delivery of the second fetus after birth of the first one within 15.5 weeks of pregnancy, and the second one birth at 38.4 weeks, 158 days after the first one. Reported diagnosis, treatment and perinatal outcomes. CONCLUSIONS: The mean reported time to extend the pregnancy after the evacuation of the first one is 7 to 153 days. In this case the pregnancy was held 158 days, more than in the rest of the reported cases, maybe due to gestational delivery age of the first fetus (15.5 weeks) compared to fetuses of 20 to 28 weeks reported in the literature. The approach of these specific cases must be individualized. There have been no trials enough so we can't know with certainty which treatment is the best of all.

[Evaluation of two transfer embryo systems performed by six physicians]. / Evaluación de dos sistemas de transferencia de embriones.

BACKGROUND: Embryo transfer is a critical point for success in IVF cycles. Many factors should be considered when performing an embryo transfer such as: embryo quality and number, soft versus rigid catheter, easy of the transfer, physician technique, ultrasound guide during transfer, among others. OBJECTIVE: Evaluate two different embryo transfer systems performed by six physicians with the same protocol. MATERIAL AND METHODS: We evaluated 308 embryo transfers performed from January 2006 to December 2008 by six physicians with two different systems. We only included patients with good quality in embryos and endometrium. Both systems were analyzed in each of the six physicians. RESULTS: Similar characteristics in number of transferred embryos, number of cells in each embryo and quality of them, were found in both groups. There were no significant differences between both systems in the characteristics of the couple nor the mentioned above. Most of the transfers n = 252 (81.81%), were realized by two of the six physicians, however, the pregnancy rate did not show significant differences between these physicians and the less experienced ones. CONCLUSIONS: With the obtained results, it could be supposed that the most influential factor in the outcome is the operator experience in the use of each system and not the system itself.

[Case report. Post cesarean section laparoscopic cholecystectomy for hydrocholecystitis]. / Colecistectomía laparoscópica poscesárea por hidrocolecisto. Reporte de un caso.

BACKGROUND: Acute cholecystitis is the second most common surgical emergency in pregnant women. Although laparoscopic cholecystectomy has been described previously in these cases, there is still controversy regarding the most appropriate moment in which to perform the procedure. OBJECTIVE: To describe the clinical presentation and management of a female with 36.6 weeks of pregnancy and clinical signs of acute cholecystitis. Cesarean section to deliver a healthy newborn was immediately followed by laparoscopic cholecystectomy without complications. A 10 year literature review complements the analysis and discussion of the case. CLINICAL CASE: A 33 year-old female with 36.6 weeks of gestation presented a history of 24 hours with right upper quadrant and epigastric abdominal pain, nausea and vomiting. Symptoms were precipitated by cholecystokinetics and did not subside after expectant and pharmacologic medical treatment. The medical group decided with the patient's consent to interrupt the pregnancy via Cesarean section immediately followed by laparoscopic cholecystectomy. RESULTS: After Cesarean section through a Pfannenstiel incision, laparoscopic trocars were placed and cholecystectomy performed without complications. The postsurgical course was favorable and both patient and newborn were discharged on day four. CONCLUSIONS: Laparoscopic surgery cholecystectomy during pregnancy and in the immediate puerperium is feasible and safe. These combined procedures: rapid pregnancy interruption followed by a minimal invasive approach gives the benefits of laparoscopic surgery in these patients.