Uterotonics, magnesium sulphate and antibiotics during childbirth and peripartum: Important obstetric drugs for the anaesthesiologist.

The main causes of maternal mortality are comorbidities, hypertensive pregnancy syndrome, obstetric haemorrhage, and maternal sepsis. For this reason, uterotonics, magnesium sulphate, and antibiotics are essential tools in the management of obstetric patients during labour and in the peripartum period. These drugs are widely used by anaesthesiologists in all departments, and play a crucial role in treatment and patient safety. For the purpose of this narrative review, we performed a detailed search of medical databases and selected studies describing the use of these drugs in patients during pregnancy, delivery and the pospartum period. Uterotonics, above all oxytocin, play an important role in the prevention and treatment of pospartum haemorrhage, and various studies have shown that in obstetric procedures, such as scheduled and emergency caesarean section, they are effective at lower doses than those hitherto accepted. We also discuss the use of carbetocin as an effective alternative that has a therapeutic advantage in certain clinical circumstances. Magnesium sulphate is the gold standard in the prevention and treatment of eclampsia, and also plays a neuroprotective role in preterm infants. We describe the precautions to be taken during magnesium administration. Finally, we discuss the importance of understanding microbiology and the pharmacology of antibiotics in the management of obstetric infection and endometritis, and draw attention to the latest trends in antibiotic regimens in labour and caesarean section.

[Body mass index and triponderal index in abnormal uterine bleed]. / Índice de masa corporal e índice triponderal en sangrado uterino anormal.

Background: Abnormal uterine bleeding (AUB) is the most common cause of blood loss. Obesity and overweight are risk factors for AUB. Objective: To compare the association between body mass index (BMI) and tri-ponderal mass index (TMI) with the presence of acute AUB and chronic AUB. Material and methods: Observational, cross-sectional and analytical study. Women between 18 and 45 years of age with an alteration in the regular uterine bleeding pattern were included. Postmenopausal women, carriers of an intrauterine device as a method of family planning who have developed alterations in the menstrual rhythm after it, those who suffered from chronic diseases (chronic kidney disease, diabetes mellitus and uncontrolled hypothyroidism) and those with medication consumption that alter coagulation were not included. Pregnant patients were excluded. Results: A total of 292 women with AUB were analyzed, with a median age of 38.5 (IQR 33-41), with bleeding of 205.4 mL (±142.9) and 116 (39.86%) of them with overweight. When analyzing the BMI with SUA, we found no significant difference in the presence of acute or chronic bleeding in the overweight (p = 0.46) and obese (p = 0.41) groups. When analyzing the IMT with the presence of acute or chronic AUB, it was not possible to find a significant difference in the overweight (p = 0.98) and obesity (p = 0.93) groups. Conclusions: The BMI was compared with the TMI for the presence of AUB, without finding a significant association.

Introducción: la hemorragia uterina anormal es la causa más común de pérdida hemática. La obesidad y el sobrepeso son factores de riesgo de sangrado uterino anormal (SUA). Objetivo: comparar la asociación entre el índice de masa corporal (IMC) y el índice de masa triponderal (IMT) con la presencia de SUA agudo y SUA crónico. Material y métodos: estudio observacional, transversal y analítico. Se incluyeron mujeres entre 18 y 45 años con alteración en el patrón de sangrado uterino regular. No se incluyeron mujeres postmenopáusicas, ni las portadoras de un dispositivo intrauterino como método de planificación familiar que hayan desarrollado alteraciones en el ritmo menstrual posterior al mismo, aquellas que padecieran enfermedades crónicas (enfermedad renal crónica, diabetes mellitus e hipotiroidismo en descontrol) ni las que tuvieran consumo de medicamentos que alteraran la coagulación. Se excluyeron pacientes embarazadas. Resultados: se analizaron 292 mujeres con SUA, con una mediana de edad de 38.5 (RIC 33-41), con sangrado de 205.4 mL (± 142.9) y 116 (39.86%) de ellas tenían sobrepeso. Al analizar el IMC con SUA no encontramos diferencia significativa en presencia de sangrado agudo o crónico en los grupos con sobrepeso (p = 0.46) y obesidad (p = 0.41). Al analizar el IMT con la presencia de SUA agudo o crónico, no fue posible encontrar diferencia significativa en los grupos de sobrepeso (p = 0.98) y obesidad (p = 0.93). Conclusiones: se comparó el IMC con el IMT para la presencia de SUA y no se encontró asociación significativa.

Manejo das irregularidades menstruais secundárias ao uso de contraceptivos ­ análise das recomendações atuais / Management of menstrual irregularities secondary to contraceptive use ­ analysis of current recommendations

As irregularidades menstruais representam uma série de desordens na quantida- de, duração, frequência ou regularidade do sangramento uterino. Entre suas cau- sas destaca-se o sangramento secundário ao uso de anticoncepcionais, uma razão frequente de descontinuidade dos contraceptivos, podendo aumentar as taxas de gestações não planejadas. Boa parte dos contraceptivos pode levar a mudanças no padrão de sangramento uterino, e a abordagem inicial do sangramentos irregula- res inclui a avaliação de outras possíveis causas, o reforço do uso correto da medi- cação, a tranquilização da paciente quanto à benignidade do quadro e à tendência a melhora com a continuidade do uso. Os anti-inflamatórios podem ser usados como estratégia inicial, e, não havendo resposta satisfatória, há alternativas espe- cíficas para cada método. Este trabalho visa identificar as recomendações atuais sobre o manejo do sangramento anormal decorrente de contraceptivos, por meio de revisão narrativa de estudos publicados sobre o tema nos últimos vinte anos.

Abnormal uterine bleeding represents a series of disorders in the amount, du- ration, frequency and or regularity of uterine bleeding. Among its causes, uterine bleeding secondary to the use of contraceptives stands out as a frequent reason for contraceptive discontinuity, which could lead to unplanned pregnancies. Most contraceptives can cause changes in the pattern of uterine bleeding, and the ini- tial approach of the abnormal bleeding includes assessing other possible cau- ses, reinforcing the correct use of medication, and reassuring the patient about the benignity of the condition and the tendency to improve with the continuity of the treatment. Anti-inflammatory drugs can be used as an initial strategy, and, if there is no satisfactory answer, there are specific alternatives for each contracep- tive method. This work aims to identify them current recommendations on the management of abnormal bleeding resulting from contraceptives use, through a narrative review of studies published on the subject in the last twenty years.

Malformação arteriovenosa uterina: um relato de caso / Uterine arteriovenous malformation: a case report

O presente estudo tem como objetivo relatar o caso de uma paciente com malformação arteriovenosa uterina, efetivamente tratada com embolização seletiva e com fertilidade preservada. A malformação arteriovenosa uterina é uma alteração vascular rara até então pouco descrita na literatura. A paciente do sexo feminino apresentou quadro de sangramento uterino anormal, com início 30 dias após um abortamento, sem realização de curetagem, de uma gestação resultante de fertilização in vitro. Foram, então, realizados exames de imagem, que levaram ao diagnóstico de malformação arteriovenosa uterina. O tratamento de escolha foi a embolização arterial seletiva, com resolução do caso. Após sete meses, nova fertilização in vitro foi realizada, encontrando-se na 36a semana de gestação. São necessários mais estudos sobre essa malformação a fim de que sejam estabelecidos os métodos mais eficazes para o manejo de casos futuros, especialmente quando há desejo de gestar.

The present study aims to report the case of a patient with uterine arteriovenous malformation, effectively treated with selective embolization and with preserved fertility. Uterine arteriovenous malformation is a rare vascular disorder that has so far been rarely described in the literature. Female patient presented with abnormal uterine bleeding, starting 30 days after an abortion without subsequent curettage, of a pregnancy resulting from in vitro fertilization. Imaging tests were then performed that led to the diagnosis of uterine arteriovenous malformation. The treatment of choice was selective arterial embolization, with successful results. After seven months, a new in vitro fertilization was performed, being in the 36th week of pregnancy. Further studies on this pathology are needed in order to establish the most effective methods for the management of future cases, especially when there is a desire to become pregnant.

Técnicas de radiología intervencionista para el manejo del sangrado uterino anormal (SUA) / Interventional radiology techniques for the management of abnormal uterine bleeding (AUB)

El sangrado uterino anormal (SUA) es una de las patologías ginecológicas más comunes en mujeres en edad reproductiva. El sistema de clasificación de la Federación Internacional de Ginecología y Obstetricia (PALM-COEIN) armoniza las definiciones de los síntomas de hemorragia normal y anormal y clasifica las posibles causas subyacentes en causas estructurales y no estructurales. El objetivo de este manuscrito es revisar el diagnóstico radiológico de cada una de las causas estructurales de sangrado uterino anormal, examinar las indicaciones de las técnicas de radiología vascular intervencionista en el manejo del SUA y conocer el procedimiento de embolización de arterias uterinas, así como sus posibles complicaciones y contraindicaciones.(AU)

Abnormal uterine bleeding is one of the most common gynaecological pathologies in women of reproductive age. The classification system of the International Federation of Gynaecology and Obstetrics (PALM-COEIN) harmonizes the definitions of normal and abnormal bleeding symptoms and classifies possible underlying causes as structural and non-structural. The aim of this manuscript is to review the radiological diagnosis of each of the structural causes of abnormal uterine bleeding, to examine the indications for interventional vascular radiology techniques in the treatment of abnormal uterine bleeding, and to learn about the uterine artery embolization procedure, as well as its possible complications and contraindications.(AU)

Changing Paradigms in the Initial Treatment of Ectopic Pregnancy at a University Hospital in Brazil / Mudança de paradigmas do tratamento inicial de gravidez ectópica em um hospital universitário no Brasil

Abstract Objective To evaluate the use of different treatment options for ectopic pregnancy and the frequency of severe complications in a university hospital. Methods Observational study with women with ectopic pregnancy admitted at UNICAMP Womeńs Hospital, Brazil, between 01/01/2000 and 12/31/2017. The outcome variables were the type of treatment (first choice) and the presence of severe complications. Independent variables were clinical and sociodemographic data. Statistical analysis was carried out by the Cochran-Armitage test, chi-square test, Mann-Whitney test and multiple Cox regression. Results In total 673 women were included in the study. The mean age was 29.0 years (± 6.1) and the mean gestational age was 7.7 (± 2.5). The frequency of surgical treatment decreased significantly over time (z = -4.69; p < 0.001). Conversely, there was a significant increase in the frequency of methotrexate treatment (z = 4.73; p < 0.001). Seventy-one women (10.5%) developed some type of severe complication. In the final statistical model, the prevalence of severe complications was higher in women who were diagnosed with a ruptured ectopic pregnancy at admission (PR = 2.97; 95%CI: 1.61-5.46), did not present with vaginal bleeding (PR = 2.45; 95%CI: 1.41-4.25), had never undergone laparotomy/laparoscopy (PR = 6.69; 95%CI: 1.62-27.53), had a non-tubal ectopic pregnancy (PR = 4.61; 95%CI: 1.98-10.74), and do not smoke (PR = 2.41; 95%CI: 1.08-5.36). Conclusion there was a change in the first treatment option for cases of ectopic pregnancy in the hospital during the period of analysis. Factors inherent to a disease that is more difficult to treat are related to a higher frequency of severe complications.

Resumo Objetivo Avaliar as diferentes opções de tratamento para gravidez ectópica e a frequencia de complicações graves em um hospital universitário. Métodos Estudo observacional com mulheres com gravidez ectópica admitidas no Hospital da Mulher da UNICAMP, no Brasill, entre 01/01/2000 e 31/12/2017. As variáveis de desfecho foram o tipo de tratamento (primeira escolha) e a presença de complicações graves. As variáveis independents foram dados clínicos e sociodemográficos. A análise estatística foi realizada pelo teste de Cochran-Armitage, teste de qui-quadrado, teste de Mann-Whitney e Regressão de Cox Múltipla. Resulados No total, 673 mulheres foram incluídas no estudo. A idade médica foi de 29.0 anos (± 6.1) e a idade gestacional media foi de 7.7 (± 2.5). A frequencia de tratamento cirúrgico diminuiu significativamente ao longo dos anos(z = -4.69; p < 0.001). Simultaneamente, houve um aumento da frequencia do tratamento clínico(z = 4.73; p < 0.001). Setenta e uma mulheres (10.5%) desenvolveram algum tipo de complicação grave. No modelo estatístico final, a prevalência de complicações graves foi maior nas mulheres que tiveram diagnóstico de gestação ectópica rota à admissão (PR = 2.97; 95%CI: 1.61-5.46), que não apresentaram sangramento vaginal (PR = 2.45; 95%CI: 1.41-4.25), sem antecedentes de laparotomia/laparoscopia (PR = 6.69; 95%CI: 1.62-27.53), com gravidez ectópica não-tubária (PR = 4.61; 95%CI: 1.98-10.74), e não tabagistas (PR = 2.41; 95%CI: 1.08-5.36). Conclusão Houve uma mudança na escolha do primeiro tratamento indicado nos casos de gravidez ectópica durante o período analisado. Os fatores inerentes a doença relacionados a maior dificuldade de tratamento foram associados a maior frequencia de complicações graves.

Ligadura temporal laparoscópica de arterias uterinas en un caso de vasculatura miometrial aumentada relacionada con el embarazo / Laparoscopic temporary uterine artery ligation in a case of pregnancy-related increased myometrial vasculature

Resumen ANTECEDENTES: La vasculatura miometrial aumentada es una afección poco común, con alto riesgo de hemorragia masiva. Su fisiopatología se relaciona con una remodelación inadecuada del endometrio y miometrio, posterior a un evento obstétrico. El tratamiento convencional, en caso de sangrado masivo, es la histerectomía. En la actualidad, los tratamientos con enfoque conservador que permiten el embarazo espontáneo, ofrecen una opción segura para estas pacientes. CASO CLÍNICO: Paciente de 20 años, primigesta, con deseo gestacional a futuro, llevada a la sala de urgencias debido a una hemorragia uterina profusa, con datos clínicos de bajo gasto, antecedente de aborto completo de 10 semanas de gestación un mes antes. En el ultrasonido Doppler se observó una imagen anecoica irregular en el fondo uterino que interrumpía la interfase endometrio-miometrial asociada con flujo sistólico alto. Para el control vascular se indicó cirugía conservadora de útero, con ligadura temporal laparoscópica de las arterias uterinas; además aspiración uterina. Estos procedimientos trascurrieron sin complicaciones. El reporte histopatológico del material aspirado fue de tejido trofoblástico asociado con ectasia vascular. CONCLUSIÓN: La ligadura temporal laparoscópica de las arterias uterinas es un procedimiento eficaz, en casos seleccionados, de control vascular durante la extracción del tejido trofoblástico remanente, en casos de vasculatura miometrial aumentada, relacionada con el embarazo, con recuperación completa de la irrigación uterina y preservación del útero.

Abstract BACKGROUND: Enlarged myometrial vasculature is a rare condition with a high risk of massive haemorrhage. Its pathophysiology is related to inadequate remodelling of the endometrium and myometrium following an obstetric event. The conventional treatment for massive haemorrhage is hysterectomy. Currently, conservative management approaches that allow spontaneous pregnancy offer a safe option for these patients. CLINICAL CASE: 20-year-old primigravida with future pregnancy aspirations, presented to the emergency department with heavy uterine bleeding, clinical data of low output, history of complete abortion at 10 weeks' gestation one month earlier. Doppler ultrasound showed an irregular anechoic image in the uterine fundus interrupting the endometrial-myometrial interface associated with high systolic flow. For vascular control, uterine-sparing surgery with laparoscopic temporary ligation of the uterine arteries and uterine aspiration was indicated. These procedures were performed without complications. The histopathological report of the aspirated tissue was trophoblastic tissue associated with vascular ectasia. CONCLUSION: Temporary laparoscopic ligation of the uterine arteries is an effective procedure in selected cases for vascular control during removal of the remaining trophoblastic tissue, in cases of pregnancy-related increased myometrial vasculature, with complete recovery of uterine irrigation and preservation of the uterus.

Factores asociados a atonía uterina

La hemorragia postparto (HPP) es la patología de mayor transcendencia con respecto a mortalidad materna, siendo esta una de las principales preocupaciones de la salud pública. La atonía uterina es la principal causa de HPP. Objetivo : Determinar los factores asociados al desarrollo de atonía uterina. Métodos : Estudio observacional analítico de casos y controles de 4,148 pacientes puérperas inmediatas atendidas en el servicio de Obstetricia del Hospital Regional Docente de Trujillo, Perú, entre los años 2009 y 2019; 1,037 pacientes presentaron atonía uterina y 3,111 fueron los controles. Resultados : Al realizar el análisis bivariado, las variables que presentaron significancia estadística como factores asociados para el desarrollo de atonía uterina fueron el parto por cesárea [OR 1,98 (IC 95%: 1,71 a 2,29)], proceder de la sierra [OR 1,38 (IC 95%: 1,12 a 1,70)], el embarazo múltiple [OR 4,48 (IC 95%: 3,43 a 5,83)], parto disfuncional [OR 1,82 (IC 95%: 1,44 a 2,31)] y feto macrosómico [OR 1,37 (IC 95%: 1,08 a 1,73)]. Por otro lado, se mostraron como factores no asociados con significancia estadística el haber sido primípara [OR 0,79 (IC 95%: 0.65 a 0,94)] y el ser multípara [OR 0,82 (IC 95%: 0,69 a 0,97)]. Conclusiones : Los factores asociados al desarrollo de atonía uterina fueron la cesárea como vía de culminación del parto, el ser procedente de la sierra, y haber tenido un feto macrosómico, polihidramnios y embarazos múltiples.

Postpartum hemorrhage (PPH) is the most important pathology in terms of maternal mortality, being one of the main public health concerns. Uterine atony is the main cause of PPH. Objective : To determine the factors associated with the development of uterine atony. Methods : Observational analytical case-control study of 4,148 immediate postpartum patients attended at the Obstetrics Department of the Hospital Regional Docente de Trujillo, Peru, between 2009 and 2019; 1,037 patients presented uterine atony and 3,111 were controls. Results : When performing the bivariate analysis, the variables that presented statistical significance as associated factors for the development of uterine atony were cesarean delivery [OR 1.98 (95% CI: 1.71-2.29)], being from the highlands [OR 1.38 (95% CI: 1.12-1.70)], multiple pregnancy [OR 4.48 (95% CI: 3.43-5.83)], dysfunctional delivery [OR 1.82 (95% CI: 1.44-2.31)] and macrosomic fetus [OR 1.37 (95% CI: 1.08-1.73)]. On the other hand, having been primiparous [OR 0.79 (95% CI: 0.65-0.94)] and being multiparous [OR 0.82 (95% CI: 0.69-0.97)] were shown as factors not associated with statistical significance. Conclusions : Factors associated with the development of uterine atony were cesarean section as the route of delivery, being from the highlands, and having had a macrosomic fetus, polyhydramnios and multiple pregnancies.

Rotura uterina: da suspeita ao tratamento / Uterine rupture: from suspicion to treatment

A rotura uterina durante a gravidez ou trabalho de parto é uma grave complicação obstétrica ainda responsável por elevada morbimortalidade materna e perinatal. É importante o diagnóstico diferencial de outras hemorragias da segunda metade da gravidez, como o descolamento prematuro da placenta e a placenta prévia. O diagnóstico é feito baseado em uma associação de sinais bem comuns da rotura uterina. O tratamento sempre é cirúrgico, mas varia de acordo com a classificação da emergência. A prevenção é realizada por meio da atenção obstétrica cuidadosa e com implementação das boas práticas de assistência ao parto.(AU)

Uterine rupture during pregnancy or labor is a serious obstetric complication still responsible for high maternal and perinatal morbidity and mortality. Differential diagnosis of other hemorrhages in the second half of pregnancy, such as placental abruption and placenta previa, is important. The diagnosis is made based on an association of very common signs of uterine rupture. Treatment is always surgical but varies according to the classification of the emergency. Prevention is carried out through careful obstetric care and the implementation of good childbirth care practices.(AU)

Abnormal Uterine Bleeding in Adolescence: When Menarche Reveals other Surprises / Hemorragia uterina anormal na adolescência: Quando a menarca revela outras surpresas

Abstract Introduction Abnormal uterine bleeding is more frequent in adolescence. Although, most commonly, it has a non-structural etiology, it may be due to any cause described. Clinical case A 12-year-old adolescent, with no relevant personal history, menarche 1 month before, was observed in the emergency department for severemenstrual bleeding with progressive worsening, and hemodynamic repercussion in need of transfusion support. Physiological ovulatory dysfunction associated with possible previously unknown coagulopathy was considered to be the most likely diagnosis and medical treatment was initiated. Without response, the patient was submitted to sedated observation and uterine aspiration, which ultimately led to the diagnosis of a Burkitt Lymphoma. Discussion Although structural causes, and particularly malignancy, whether gynecological or not, are a rare cause of abnormal uterine bleeding in this age group, they must be considered, thus enhancing the fastest and most appropriate treatment.

Resumo Introdução A hemorragia uterina anormal é mais frequente na adolescência. Apesar de maioritariamente de etiologia não estrutural, pode dever-se a qualquer causa descrita. Caso clínico Adolescente de 12 anos, sem antecedentes pessoais relevantes, com menarca há 1 mês, observada no serviço de urgência por hemorragia menstrual grave com agravamento progressivo e repercussão hemodinâmica com necessidade de suporte transfusional. Foi colocada a hipótese de disfunção ovulatória fisiológica associada a eventual coagulopatia desconhecida previamente e foi instituído tratamento médico. Por ausência de resposta a tratamento médico, foi submetida a observação sob sedação e aspiração uterina que evidenciou tratar-se de um Linfoma de Burkitt. Discussão Apesar de as causas estruturais, e particularmente as neoplasias, do foro ginecológico ou não, serem uma causa rara de hemorragia uterina anormal nesta faixa etária, elas devem ser levadas em consideração potenciando assim um tratamento mais célere e adequado.

Hallazgos histopatológicos en sangrado uterino anormal en pacientes posmenopaúsicas del Hospital de Clínicas

RESUMEN Introducción: El sangrado uterino anormal en la posmenopausia es cualquier sangrado uterino que se presenta después de un año de amenorrea en la mujer en edad postmenopáusica, sin uso de terapia hormonal. Metodología: Es un estudio observacional, descriptivo y temporalmente retrospectivo. El muestreo es no probabilístico de casos consecutivos. La población accesible son pacientes posmenopáusicas con sangrado uterino anormal que fueron sometidas a biopsia de endometrio en la cátedra de Ginecología y Obstetricia del Hospital de Clínicas de la Universidad Nacional de Asunción en el período enero 2019 a diciembre 2020. Resultados: Sobre el hallazgo histopatológico se puede ver que el 30,8 % fue pólipo endometrial, el 24,2 % mucosa endometrial normal, el 11 % adenocarcinoma. Discusión: El sangrado uterino anormal ya sido investigado en el Hospital de Clínicas por Franco-Domínguez quien llega a la conclusión de que la prevalencia de hemorragia uterina anormal de causa orgánica es 16,3 %. El principal motivo de consulta es la hipermenorrea (63,3 %). Los diagnósticos finales fueron mioma uterino (57 %) y las patologías endometriales. La mayoría fue sometida a cirugía (71 %) y 38 % presentó anemia

ABSTRACT Introduction: Abnormal uterine bleeding in postmenopause is any uterine bleeding that occurs after one year of amenorrhea in women of postmenopausal age, without the use of hormonal therapy. Methods: It is an observational, descriptive and temporally retrospective study. The sampling is non-probabilistic of consecutive cases. The accessible population are postmenopausal patients with abnormal uterine bleeding who underwent endometrial biopsy in the Department of Gynecology and Obstetrics of the Hospital de Clínicas of the National University of Asunción in the period January 2019 to December 2020. Results: About the histopathological finding was You can see that 30.8% were endometrial polyp, 24.2% normal endometrial mucosa, 11% adenocarcinoma. Discussion: The abnormal uterine bleeding has already been investigated at the Hospital de Clínicas by Franco-Domínguez who concludes that the prevalence of abnormal uterine bleeding of organic cause is 16.3%. The main reason for consultation is hypermenorrhea (63.3%). The final diagnoses were uterine myoma (57%) and endometrial pathologies. Most underwent surgery (71%) and 38% had anemia.

Prematuridade em um hospital de referência ao parto de alto risco / Prematurity in a hospital of reference to high risk children

Este estudo objetivou investigar a prevalência de partos prematuros em hospital de referência para partos de alto risco e verificar a associação de fatores maternos (demográficos, socioeconômicos, comportamentais e obstétricos) com a prematuridade. Estudo descritivo analítico transversal prospectivo e quantitativo, com amostra populacional de 489 puérperas, conduzido por entrevista, durante seis meses. As análises descritivas utilizaram o Teste de Fisher para associação e regressão logística para análises multivariadas. A prevalência de prematuridade foi de 11,65%, significativamente maior em mães solteiras (40,4%), com menos de nove anos de estudo (40,4%), que pertencem à classe econômica C (47,4%), usuárias de drogas (12,17%), sedentárias (12,93%), hipertensas (16,67%) e que foram internadas (17,82%) ou tiveram sangramento vaginal durante a gestação (25,58%). Uso de drogas (p = 0,001) e sangramento vaginal (p = 0,010) foram considerados preditores maternos para prematuridade.

To investigate the prevalence of premature births in a referral hospital for high-risk births and to verify the association of maternal factors (demographic, socioeconomic, behavioral, and obstetric) with prematurity. Descriptive cross-sectional prospective and quantitative study, with a population sample of 489 mothers, conducted by interview, for six months. The descriptive analyzes used the Fisher Test for association and logistic regression for multivariate analyzes. The prevalence of prematurity was 11.65%, significantly higher in single mothers (40.4%), with less than nine years of study (40.4%), who belong to economic class C (47.4%), drug users (12.17%), sedentary (12.93%), hypertensive (16.67%) and who were hospitalized (17.82%) or had vaginal bleeding during pregnancy (25.58%). Drug use (p = 0.001) and vaginal bleeding (p = 0.010) were considered maternal predictors of prematurity.

Reporte de caso: ruptura uterina durante trabajo de parto, en útero sin cicatriz previa / Case review: uterine rupture during labor, in uterus without previous scar

Resumen La ruptura uterina es una complicación obstétrica poco frecuente con una alta morbilidad y mortalidad materna e infantil. El diagnóstico precoz y el tratamiento inmediato son factores pronósticos importantes tanto para la madre como para el feto. Se presenta el caso de una paciente multigestante, con alto riesgo por diabetes gestacional compensada y déficit de proteína S sin manejo, con embarazo a término y adecuado control prenatal, que ingresa hemodinámicamente estable, con cambios cervicales iniciales, feto en presentación longitudinal, cefálico con monitoreo fetal categoría ACOG 1 para conducción del trabajo de parto, y presenta ruptura uterina espontánea, dando lugar a un hemoperitoneo materno y sufrimiento fetal agudo con posterior tratamiento quirúrgico de urgencia mediante una cesárea e histerectomía, por atonía uterina sin control del sangrado con maniobras farmacológicas. Este caso es muy significativo por la falta de factores de riesgo y su presentación clínica atípica, tanto en síntomas y signos como en la ubicación de la ruptura. MÉD. UIS.2021;34(1): 107-12.

Abstract Uterine rupture is a rare obstetric complication with high maternal and infant morbidity and mortality. Early diagnosis and immediate treatment are important prognostic factors for both mother and fetus. The study presents the case of a multigravida patient, with high risk for compensated gestational diabetes, and uncontrolled protein S deficiency. The patient, who was full-term and had adequate prenatal control, was admitted hemodynamically stable, with initial cervical changes, fetus in longitudinal presentation, andcephalic with monitoring category ACOG 1. The patient spontaneous uterine rupture, which leads to maternal hemoperitoneum and acute fetal distress. Cesarean section and hysterectomy were performed as emergency surgical treatments due to uterine atony without bleeding control with pharmacological maneuvers. This case is great significance due to the lack of risk factors and the atypical clinical presentation, evidenced in the signs and symptoms and the rupture's location. MÉD.UIS.2021;34(1): 107-12.

Melanoma primario de cuello uterino: Reporte de caso / Primary malignant melanoma of the cervix: Case report

Resumen El melanoma primario de mucosas representa el 1% de todos los cánceres. Su localización en cuello uterino es rara y existen menos de 100 casos reportados en la literatura hasta la fecha. Los datos son limitados en cuanto su estadificación y tratamiento y su pronóstico es malo con tasas de supervivencia del 10% a 5 años. Se presenta el caso clínico de una paciente de 82 años con sangrado vaginal, con evidencia de una lesión melanótica en cuello uterino, la biopsia de la lesión reportó compromiso por tumor maligno pobremente diferenciado, con inmuno perfil que confirma melanoma maligno. Los estudios de extensión no mostraron enfermedad metastásica a distancia, se presentó el caso en junta multidisciplinaria de ginecología oncológica por lo que se indicó tratamiento con radioterapia pélvica externa exclusiva con intención paliativa para control de síntomas, teniendo en cuenta: la edad, las comorbilidades y el estado funcional ECOG (Eastern Cooperative Oncology Group) 3; luego de 10 meses de seguimiento la paciente falleció.

Abstract Primary mucosal melanoma represents 1% of all cancers, the location in the cervix is rare, there are less than 100 cases reported in the literature to date, the data is limited in terms of staging and treatment, its prognosis is poor with survival rates of 10% at 5 years. We present a clinical case of a primary melanoma of the cervix in an 82-year-old patient with vaginal bleeding with evidence of a melanotic lesion in the cervix. The biopsy of the lesion reported poorly differentiated malignant tumor involvement, with an immuno-profile that favors melanoma. Extension studies were performed that did not show distant metastatic disease, the case was presented in a multidisciplinary oncological gynecology meeting, indicating treatment with exclusive external pelvic radiotherapy with palliative intention for symptom control taking into account patient comorbidities and ECOG functional status. (Eastern Cooperative Oncology Group) 3, after 10 months of follow-up the patient died.

Malformación arteriovenosa uterina gigante. Presentación de un caso / Giant uterine arteriovenous malformation. A case report

RESUMEN Se presenta el caso de una paciente que cursó con hemorragia uterina anormal debido a malformación arteriovenosa adquirida diagnosticada por ecografía Doppler y resonancia magnética. Dicha patología es hallada cada vez con mayor frecuencia y consecuencias graves, si no se realiza un manejo adecuado y oportuno.

ABSTRACT The case of a patient who presented with abnormal uterine hemorrhage due to an acquired arteriovenous malformation diagnosed with Doppler ultrasound and magnetic resonance is presented. This pathology is becoming more and more frequent and with serious consequences, if proper and timely management is not given.

Inversión uterina no puerperal: primer caso reportado en el Perú / Non-puerperal uterine inversion: first case reported in Peru

RESUMEN La inversión uterina no puerperal es muy rara. Se comunica un caso asociado con leiomiomatosis. Se trató de una multípara de 45 años que manifestó sangrado vaginal grave, dolor pélvico y sensación de cuerpo extraño vaginal. Se diagnosticó mioma uterino en fase abortiva. Se programó para miomectomía con probable histerectomía abdominal y se encontró inversión uterina completa. Este reporte constituye un caso anecdótico de inversión uterina no puerperal, cuyo tratamiento quirúrgico fue exitoso.

ABSTRACT Non-puerperal uterine inversion is very rare. A case associated with leiomyomatosis is reported. The case of a 45-year-old multiparous woman with severe vaginal bleeding, pelvic pain and vaginal foreign body sensation is presented. Uterine leiomyoma in abortive phase was diagnosed. She was scheduled for myomectomy with probable abdominal hysterectomy and complete uterine inversion was found. This report is an anecdotal case of non-puerperal uterine inversion, whose surgical treatment was successful.

Carcinosarcoma de ovario en paciente perimenopáusica / Ovarian carcinosarcoma in a perimenopausal woman

Resumen ANTECEDENTES: El carcinosarcoma de ovario, o tumor mixto de Müller, es una neoplasia infrecuente que representa alrededor del 1 al 4% de los carcinomas ováricos epiteliales. Su histología combina componentes sarcomatosos y carcinomatosos. CASO CLÍNICO: Paciente de 55 años, con diagnóstico de carcinosarcoma de ovario. Acudió a consulta debido a un sangrado uterino irregular y dolor abdominal. En la ecografía transvaginal se encontró una formación anexial sólida y heterogénea de 11.95 x 10.6 cm, con captación Doppler. El estudio se amplió con una tomografía axial computada (TAC) abdominopélvica y de tórax en la que se observó una tumoración en el lado izquierdo de 18 x 13 cm. Los marcadores tumorales se reportaron elevados: CEA 10.60, CA 125 91.3 y CA19.9 153 U/mL, con proteína HE-4 86.8 pmol/L, ligeramente disminuida. La laparotomía exploradora se completó con una cirugía para eliminar toda la carga tumoral. Se indicó quimioterapia con paclitaxel-carboplatino. El estudio histológico definitivo informó la existencia de una tumoración sólida-quística, compatible con un carcinosarcoma en el ovario izquierdo, con amplia diseminación peritoneal. A los 3 meses de la intervención, la paciente continuaba sin signos de recidiva. CONCLUSIONES: El carcinosarcoma es un tumor ginecológico poco frecuente pero muy agresivo; por su excepcional hallazgo aún no se dispone de criterios de tratamiento. Es decisivo fomentar investigaciones futuras acerca de los factores pronósticos y biomarcadores y desarrollar tratamientos dirigidos a las características moleculares de cada paciente.

Abstract BACKGROUND: Ovarian carcinosarcoma, or mixed Müllerian tumor, is a rare neoplasm that represents about 1 to 4% of epithelial ovarian carcinomas. Its histology combines sarcomatous and carcinomatous components. CLINICAL CASE: 55-year-old female patient with a diagnosis of ovarian carcinosarcoma. She consulted due to irregular uterine bleeding and abdominal pain. Transvaginal ultrasound showed a solid and heterogeneous adnexal formation measuring 11.95 x 10.6 cm, with Doppler uptake. The study was expanded with an abdominopelvic and chest computed axial tomography (CT) scan in which a tumor was observed on the left side measuring 18 x 13 cm. Tumor markers were reported elevated: CEA 10.60, CA 125 91.3 and CA19.9 153 U/mL, with HE-4 protein 86.8 pmol/L, slightly decreased. Exploratory laparotomy was completed with R0 surgery. Chemotherapy with paclitaxel-carboplatin was indicated. The definitive histological study reported the existence of a solid-cystic tumor, compatible with a carcinosarcoma in the left ovary, with extensive peritoneal dissemination. Three months after surgery, the patient continued without signs of recurrence. CONCLUSIONS: Carcinosarcoma is a rare but very aggressive gynecologic tumor; because of its exceptional finding no treatment criteria are yet available. It is crucial to encourage future research on prognostic factors and biomarkers and to develop treatments targeted to the molecular characteristics of each patient.

[Diagnostic accuracy of a hysteroscopic score for the detection of endometrial cancer in patients with postmenopausal bleeding and endometrial thickening].

OBJECTIVE: To assess the diagnostic accuracy of hysteroscopic scores in endometrial cancer. METHODS: Diagnostic accuracy study assembled within a cross-sectional study that included patients with postmenopausal bleeding and endometrial thickening greater than 5 mm in whom hysteroscopy was performed and then compared with endometrial biopsy as the diagnostic gold standard, in two high complexity hospitals. Clinical, sociodemographic variables, as well as hysteroscopic scores and the results of endometrial tissue histopathology were measured. Sensitivity and specificity, likelihood ratios and area under the curve with their respective confidence intervals were estimated in the analysis. RESULTS: With a 9 % prevalence of endometrial cancer, the hysteroscopic assessment system was shown to have 75 % sensitivity (95 % CI; 30.1- 95.43), 95,1 % specificity (95 % CI; 83.9-98.7), a positive likelihood ratio of 15.38 (95 %; CI 3.55- 66.56), a negative likelihood ratio of 0.26 and area under the curve of 85 %. CONCLUSIONS: The standardized hysteroscopic assessment system was found to have an acceptable sensitivity for screening in patients with postmenopausal bleeding and endometrial thickening (≥ 5 mm). Further studies with larger sample sizes are required in order to arrive at a more precise estimation of the operational characteristics of the hysteroscopic assessment system for the detection of endometrial cancer.

TITULO: EXACTITUD DIAGNÓSTICA DE UNA ESCALA HISTEROSCÓPICA PARA LA DETECCIÓN DE CÁNCER ENDOMETRIAL EN PACIENTES CON SANGRADO POSMENOPÁUSICO Y ENGROSAMIENTO ENDOMETRIAL. OBJETIVO: Evaluar la exactitud diagnóstica del sistema de puntaje histeroscópico de cáncer endometrial. METODOS: Estudio de exactitud diagnóstica ensamblado en estudio transversal, que incluyó pacientes con sangrado posmenopáusico y engrosamiento endometrial mayor o igual a 5 mm, a quienes se practicó histeroscopia, cuyo resultado se comparó con la biopsia endometrial como patrón de oro diagnóstico, en dos hospitales de alta complejidad. Se midieron variables sociodemográficas, clínicas, puntaje de evaluación histeroscópica y resultado histopatológico de tejido endometrial. En el análisis se estimó sensibilidad, especificidad, razones de probabilidades y área bajo la curva con sus respectivos intervalos de confianza. RESULTADOS: Con una prevalencia del cáncer endometrial del 9 %, el sistema de evaluación por histeroscopia mostró una sensibilidad de 75 % (IC 95 %: 30,1-95,43), especificidad de 95,1 % (IC 95 %: 83,9- 98,7), una razón de probabilidades positiva de 15,38 (IC 95 %: 3,55-66,56), una razón de probabilidades negativa de 0,26 y un área bajo la curva del 85 %. CONCLUSIONES: el sistema de evaluación endometrial histeroscópico estandarizado mostró una sensibilidad aceptable para hacer la tamización en pacientes con sangrado posmenopáusico y engrosamiento endometrial (≥ 5 mm). Se requiere la realización de estudios con un mayor tamaño muestral que permitan hacer una estimación más precisa de las características operativas de este sistema de evaluación histeroscópico para la detección de cáncer endometrial.

[Safety and acceptability of the 52 mg levonorgestrel-releasing intrauterine system in women with abnormal uterine bleeding in an ambulatory care center in Bogotá, Colombia, 2012-2016].

OBJECTIVE: To describe safety and acceptability with the use of the 52-mg levonorgestrel-releasing intrauterine system in women with abnormal uterine bleeding. METHODS: Retrospective cohort of women 18 years of age and older diagnosed with abnormal uterine bleeding, ultrasound-reported uterine length between 6 and 10 cm and uniform endometrial cavity in its entire length, regardless of structural abnormality, who received treatment with 52-mg levonorgestrel-releasing intrauterine system between 2012 and 2016. Non-probabilistic convenience sampling was carried out. Sociodemographic and clinical baseline variables were measured, as well as patient perception of bleeding and the frequency of failure, amenorrhea, need for hysterectomy and adverse events, over a 12-month follow-up period. Descriptive statistics were applied. RESULTS: Overall, 200 patients were assessed. A subjective perception of improvement in terms of bleeding volume and frequency of leave of absence or visits to the emergency department was found; 90 % of the patients had amenorrhea, and 6 % experienced adverse events. CONCLUSIONS: The 52-mg levonorgestrel-releasing intrauterine system is a safe option for the management of abnormal uterine bleeding in women with normal uterine size and no submucosal endometrial abnormalities. Local randomized studies are required to assess effectiveness and efficiency in comparison with other management options.

TITULO: SEGURIDAD Y ACEPTABILIDAD DEL SISTEMA INTRAUTERINO LIBERADOR DE LEVONORGESTREL 52 MG EN MUJERES CON HEMORRAGIA UTERINA ANORMAL EN UN CENTRO DE ATENCIÓN AMBULATORIA EN BOGOTÁ, COLOMBIA, 2012-2016. OBJETIVO: Describir la seguridad y aceptabilidad del uso del sistema intrauterino liberador de levonorgestrel de 52 mg en mujeres con hemorragia uterina anormal. METODOS: Cohorte retrospectiva en la que se incluyeron mujeres de 18 años o más con diagnóstico de hemorragia uterina anormal, reporte por ultrasonido de tamaño uterino entre 6 y 10 cm de longitud y cavidad endometrial uniforme en toda su longitud, independiente de alteración estructural, a quienes se les colocó para tratamiento el sistema intrauterino liberador de levonorgestrel de 52 mg, en el periodo de 2012 hasta 2016 Se realizó un muestreo por conveniencia. Se midieron variables sociodemográficas y clínicas basales, así como la percepción de la hemorragia por parte de la paciente y la frecuencia de falla, amenorrea, necesidad de histerectomía y eventos adversos, con seguimiento a 12 meses. Se aplicó estadística descriptiva. RESULTADOS: Se evaluaron 200 pacientes, hubo una percepción de mejoría subjetiva del volumen de sangrado y de la frecuencia de incapacidad laboral o asistencia a urgencias. El 90 % de las pacientes registró amenorrea y el 6 % eventos adversos. CONCLUSIONES: El sistema intrauterino liberador de levonorgestrel de 52 mg es una alternativa segura para el manejo de la hemorragia uterina anormal en mujeres con úteros de tamaño normal y sin al- teraciones submucosas del endometrio. Se requieren estudios aleatorizados en el medio local para evaluar su efectividad y eficiencia respecto a otras alternativas de manejo.