Experiencia de parto instrumental con vacuum en Hospital Público de Santiago de Chile / Experience of vacuum-assisted instrumental delivery in a Public Hospital in Santiago, Chile

Introducción: El vacuum es el instrumento de elección para asistir el parto instrumental en países desarrollados. Objetivo: El objetivo del estudio es exponer los resultados maternos y fetales del uso del vacuum en población chilena y promover su disponibilidad y uso en nuestro país y Latinoamérica. Método: El estudio se realizó entre octubre de 2017 y diciembre de 2021, incluyendo a pacientes que tuvieron parto instrumental con vacuum en el Hospital San Juan de Dios de Chile. Se compararon los partos exitosos con vacuum y los partos en los que se requirió el uso de otro instrumento o una cesárea posterior al uso del instrumento. Resultados: Se realizaron 153 vacuum, correspondientes al 28,59% del total de partos instrumentales. El 79,74% tuvo éxito. El 5,88% no recibió anestesia o se aplicó anestesia local. Solo el 3,27% presentó desgarro perineal con compromiso del esfínter anal. El 91,5% de los recién nacidos no tuvieron complicaciones fetales. Un 20,3% requirió reanimación neonatal. Conclusiones: El estudio muestra que el vacuum es una opción segura y efectiva de parto instrumental en nuestra población. La correcta capacitación y protocolos adecuados son necesarios para garantizar resultados exitosos.

Introduction: Vacuum extraction is the instrument of choice for assisting instrumental delivery in developed countries. Objective: The aim of the study is to present the maternal and fetal outcomes of vacuum use in the Chilean population and promote its availability and usage in our country and Latin America. Method: The study was performed between October 2017 and December 2021, including patients who underwent instrumental delivery with a vacuum extraction at the Hospital San Juan de Dios in Chile. Successful vacuum deliveries were compared with deliveries where another instrument was required, or a cesarean section was performed after instrument use. Results: A total of 153 vacuum deliveries were carried out, accounting for 28.59% of all instrumental deliveries. 79.74% were successful. 5.88% did not receive anesthesia or received local anesthesia. Only 3.27% experienced perineal tear with involvement of the anal sphincter. 91.5% of newborns had no fetal complications. 20.3% required neonatal resuscitation. Conclusions: The study demonstrates that the vacuum is a safe and effective option for instrumental delivery in our population. Proper training and appropriate protocols are necessary to ensure successful outcomes.

Parto vaginal operatório / Operative vaginal delivery

PONTOS-CHAVE Quando utilizados na técnica correta, fórcipes e vácuo-extratores apresentam baixos índices de complicações. Para o feto com sinais de hipóxia no período expulsivo, o parto vaginal operatório tem potencial para reduzir a exposição aos fatores intraparto que promovem a encefalopatia hipóxico-isquêmica. Fórcipes médios e/ou rotacionais são opções apropriadas em circunstâncias selecionadas e exigem habilidade e experiência. Os fórcipes são mais resolutivos do que os vácuo-extratores para o parto vaginal operatório, porém são mais associados a lacerações perineais graves. Céfalo-hematoma é mais provável de ocorrer com o aumento na duração da vácuo-extração. Os vácuo-extratores de campânulas flexíveis apresentam taxas maiores de falha, porém apresentam menores incidências de trauma no couro cabeludo do neonato. (AU)

[Spatulas: A Franco-Colombian story or the slow rise of propulsion...] / Les spatules : une histoire franco-colombienne ou la lente ascension de la propulsion .

The idea of using an instrument to assist natural childbirth is not new and it was in the 18th and 19th centuries that the forceps was developed. It is only after the Second World War that the suction cup provides an alternative to instrumental childbirth, but still based on prehension and traction. In 1950, Emile Thierry, in France, presented his spatulas based on the then original principle of propulsion. The diffusion of spatulas is almost non-existent in the Anglo-Saxon world but is not limited to France since its use was real by the Iberians and Latin Americans. There are currently three types of spatula, two of which are French and one Colombian. This review takes up the saga of this instrument for more than 70 years, develops its particularities and describes the present literature.

Estimación de la frecuencia del parto vaginal instrumentado en Colombia en los años 2015 - 2019. Estudio transversal de registros poblacionales / Estimated frequency of instrumented vaginal delivery in Colombia between 2015 and 2019. Population registry-based cross-sectional study

Objetivos: evaluar la frecuencia del parto instrumentado en Colombia y por regiones entre el 2015 y 2019. Materiales y métodos: estudio de corte transversal a partir de registros poblacionales. Se incluyeron los registros de mujeres con edad gestacional mayor a 28 semanas y parto vaginal. Muestreo consecutivo. La información se obtuvo a partir del certificado de nacido vivo del Departamento Administrativo Nacional de Estadística (DANE). Se realizó la descripción de las variables sociodemográficas y clínicas. La frecuencia del parto instrumentado fue calculada y descrita por año y departamento. Resultados: se incluyeron 3.224.218 registros de recién nacidos vivos. De estos, 1.719.405 (53,33 %) correspondieron a partos vaginales, y 1.468.726 (45,55 %) a partos por vía cesárea. La frecuencia nacional del parto instrumentado entre el 2015 y 2019 fue de 36.087 nacimientos (1,11 %); Antioquia y Bogotá, D.C. fueron los lugares con mayor ocurrencia, 16.201 (4,5 %) y 13.686 (2,52 %), respectivamente. Conclusiones: el parto vaginal instrumentado es la vía de parto con menor ocurrencia en Colombia con tendencia a la disminución. La formación en este recurso para el uso durante el trabajo de parto no debe perderse en la formación del profesional de salud, especialmente en los programas de Ginecología y Obstetricia. Se debe evaluar si el aumento en el adecuado uso de esta técnica puede disminuir la tasa de cesáreas observadas actualmente, así como describir los escenarios clínicos donde su uso es seguro para la madre y el feto. Se requieren estudios prospectivos, pues pueden permitir establecer las causas del descenso en el uso de esta herramienta obstétrica, los resultados maternos y perinatales en términos de su riesgo/beneficio.

Objectives: To assess the frequency of instrumented delivery in Colombia and by regions between 2015 and 2019. Materials and methods: Cross-sectional study based on population registries. Records of women with a gestational age of more than 28 weeks and vaginal delivery were included. Consecutive sampling was used. The information was taken from live birth certificates of the National Administrative Department of Statistics (DANE). Sociodemographic and clinical variables were described. The frequency of instrumented deliveries was calculated and described by year and by department. Results: Overall, 3,224,218 live birth records were included. Of these 1,719,405 (53.33 %) were vaginal deliveries and 1,468,726 (45.55 %) were cesarean births. At a national level, the frequency of instrumented deliveries between 2015 and 2019 was 36,087 births (1.11 %); Antioquia and Bogotá, D.C. were the places with the highest occurrence, with 16,201 (4.5 %) and 13,686 (2.52 %), respectively. Conclusions: The occurrence of instrumented vaginal delivery in Colombia is the lowest and tends to diminish. Training of healthcare professionals in this approach during labor must not be abandoned, particularly in Obstetrics and Gynecology training programs. Further studies should be conducted to determine whether the increased adequate use of this technique could contribute to a lower rate of cesarean sections, and also to describe the clinical setting in which its use is safe for both the mother and the fetus. Prospective studies are required to identify the causes leading to the lower use of this obstetric tool as well as the risks and benefits in terms of maternal and perinatal outcomes.

Análise da percepção de puérperas sobre a assistência ao parto em uma maternidade do Tocantins / Analysis of the perception of puerperal women about maternity care assistance in a maternity of Tocantins

Objetivo: No decorrer dos séculos, o parto migrou do ambiente domiciliar para o hospitalar, sendo então repleto de procedimentos que, embora tenham o intuito de ajudar, nem sempre são adequados ou baseados em evidências. Por isso, o objetivo deste estudo é identificar os procedimentos realizados com parturientes durante o parto em uma maternidade do Tocantins, além de caracterizar o perfil dessas pacientes. Método: Foi aplicado um questionário a 70 puérperas de parto normal, maiores e menores de idade, durante quatro meses. O questionário de referência foi o utilizado do estudo Nascer no Brasil. Resultados: A maioria das pacientes se autodeclarou parda, tinha ao menos o ensino médio completo e era maior de 18 anos. Mais da metade delas tiveram alguma alteração no períneo, 25% sofreram manobra de Kristeller e 88% submeteram-se à litotomia. Além disso, a grande maioria avaliou o serviço da maternidade como bom/ótimo/excelente. Conclusão: A assistência ao parto no Tocantins ainda se divide em práticas adequadas e técnicas ultrapassadas. Trata-se de um estudo original e um dos primeiros nesse sentido realizado no estado mais novo do Brasil.(AU)

Objective: Throughout the centuries, childbirth has migrated from the home environment to the hospital, being then full of procedures that although they are intended to help, are not always adequate or based on evidence. Therefore, the objective of this study is to identify the procedures performed with parturients during childbirth in a maternity hospital in Tocantins, in addition to characterizing the profile of these patients. Method: A questionnaire was applied to 70 mothers of normal birth, older and younger, for four months. The reference questionnaire was used in the Nascer no Brasil study. Results: Most patients declared themselves to be brown, had at least completed high school, and were over 18 years old. More than half of them had some alteration in the perineum, 25% underwent a Kristeller maneuver and 88% underwent lithotomy. In addition, the vast majority rated the maternity service as good/excellent/excellent. Conclusion: Assistance to childbirth in Tocantins is still divided into outdated technical and appropriate practices. This is an original study and one of the first in this sense carried out in the newest state of Brazil.(AU)

Exploring Obstetrical Interventions and Stratified Cesarean Section Rates Using the Robson Classification in Tertiary Care Hospitals in the United Arab Emirates.

OBJECTIVE: The objective of the present study was to explore obstetric management in relation to clinical, maternal and child health outcomes by using the Robson classification system. METHODS: Data was collected from obstetrics registries in tertiary care hospitals in Dubai, United Arab Emirates (UAE). RESULTS: The analysis of > 5,400 deliveries (60% of all the deliveries in 2016) in major maternity hospitals in Dubai showed that groups 5, 8 and 9 of Robson's classification were the largest contributors to the overall cesarean section (CS) rate and accounted for 30% of the total CS rate. The results indicate that labor was spontaneous in 2,221 (45%) of the women and was augmented or induced in almost 1,634 cases (33%). The birth indication rate was of 64% for normal vaginal delivery, of 24% for emergency CS, and of 9% for elective CS. The rate of vaginal birth after cesarean was 261 (6%), the rate of external cephalic version was 28 (0.7%), and the rate of induction was 1,168 (21.4%). The prevalence of the overall Cesarean section was 33%; with majority (53.5%) of it being repeated Cesarean section. CONCLUSION: The CS rate in the United Arab Emirates (UAE) is higher than the global average rate and than the average rate in Asia, which highlights the need for more education of pregnant women and of their physicians in order to promote vaginal birth. A proper planning is needed to reduce the number of CSs in nulliparous women in order to prevent repeated CSs in the future. Monitoring both CS rates and outcomes is essential to ensure that policies, practices, and actions for the optimization of the utilization of CS lead to improved maternal and infant outcomes.

Exploring obstetrical interventions and stratified cesarean section rates using the Robson classification in tertiary Care hospitals in the united arab emirates

Abstract Objective The objective of the present study was to explore obstetric management in relation to clinical, maternal and child health outcomes by using the Robson classification system. Methods Data was collected from obstetrics registries in tertiary care hospitals in Dubai, United Arab Emirates (UAE). Results The analysis of > 5,400 deliveries (60% of all the deliveries in 2016) in major maternity hospitals in Dubai showed that groups 5, 8 and 9 of Robson's classification were the largest contributors to the overall cesarean section (CS) rate and accounted for 30% of the total CS rate. The results indicate that labor was spontaneous in 2,221 (45%) of the women and was augmented or induced in almost 1,634 cases (33%). The birth indication rate was of 64% for normal vaginal delivery, of 24% for emergency CS, and of 9% for elective CS.The rate of vaginal birth after cesarean was 261(6%), the rate of external cephalic version was 28 (0.7%), and the rate of induction was 1,168 (21.4%). The prevalence of the overall Cesarean section was 33%; with majority (53.5%) of it being repeated Cesarean section. Conclusion The CS rate in the United Arab Emirates (UAE) is higher than the global average rate and than the average rate in Asia, which highlights the need for more education of pregnant women and of their physicians in order to promote vaginal birth. A proper planning is needed to reduce the number of CSs in nulliparous women in order to prevent repeated CSs in the future. Monitoring both CS rates and outcomes is essential to ensure that policies, practices, and actions for the optimization of the utilization of CS lead to improved maternal and infant outcomes.

Management of Descemet Membrane Detachment After Forceps Birth Injury.

PURPOSE: To describe the clinical signs of Descemet membrane (DM) detachment due to forceps-related birth injury and its subsequent management using optical coherence tomography. METHODS: Case report. RESULTS: A 3-day-old term infant presented with left eye corneal clouding and a definitive history of traumatic forceps-assisted delivery. Despite topical therapy, corneal clouding persisted, necessitating an examination under anesthesia using ultrasound and handheld optical coherence tomography. This revealed not only a tear in DM but also a large detachment. Injection of air alone failed to achieve apposition of DM to the posterior stroma. Apposition was achieved only after penetration of the overlying cornea with the needle of a 10-0 nylon suture and release of clear viscous fluid. The cornea cleared within the first week and continued in the months to follow. CONCLUSIONS: Prolonged corneal edema should alert the physician to probable DM detachment after forceps-related birth injury. Injecting air alone may not be sufficient to reattach the detached DM.

Forceps, Actual Use, and Potential Cesarean Section Prevention: Study in a Selected Mexican Population.

OBJECTIVE: Assessment of the frequency of complications observed with various forceps and operative vaginal delivery (OVD) techniques performed at the ABC Medical Center (Mexico City) to evaluate their safety, bearing in mind the importance of decreasing our country's high cesarean section incidence. METHODS: We reviewed 5,375 deliveries performed between the years 2007 and 2012, only 146 were delivered by OVD. RESULTS: Only 1.0% of the cases had a serious, life-threatening situation (uterine rupture). The Simpson forceps was the most favored instrument (46%) due to its simplicity of use, effectiveness, and familiarity. Prophylactic use was the most common indication (30.8%) and significant complications observed were vaginal lacerations (p = 0.016), relative risk (RR) of 3.4 (95% confidence interval [CI]: 1.15-10.04), and fourth degree perineal tear (p = 0.016), RR of 3.4 (95% CI: 1.15-10.04). CONCLUSIONS: Forceps use and other OVD techniques are a safe alternative to be considered, diminishing C-section incidence and its complications.

Does the number of forceps deliveries performed in residency predict use in practice?

OBJECTIVE: We aimed to determine whether a threshold number of forceps deliveries in residency predicts use of forceps in independent practice. STUDY DESIGN: We surveyed obstetrics and gynecology residency graduates of 2 academic programs from 2008 through 2012 regarding the use of operative vaginal delivery in practice. At these programs, residents are trained in both forceps and vacuums. Individual case log data were obtained with the number of forceps deliveries performed by each respondent during residency. Respondents were grouped as currently using any forceps or vacuums alone. A logistic regression model estimated the probability of forceps use, predicted by the number of residency forceps deliveries. From the resulting receiver-operating characteristic curve, we assessed sensitivity, specificity, positive predictive value, and area under the curve. RESULTS: The response rate was 85% (n = 58) and 90% (n = 52) practice obstetrics. Seventy-nine percent (n = 41) use forceps in practice. The mean number of forceps performed during residency was 22.3 ± 1.3 (mean ± SE) in the any-forceps group and 18.5 ± 2.1 in the vacuums-only group (P = .14). Although the model performed only moderately (area under the curve, 0.61, 95% confidence interval [CI], 0.42-0.81), more than 13 residency forceps deliveries corresponded to a 95% sensitivity (95% CI, 84-99) and a positive predictive value of 83% (95% CI, 69-92) for using forceps in practice. The specificity of this threshold is 27% (95% CI, 6-61). CONCLUSION: Although exceeding 13 forceps deliveries made it highly likely that obstetricians would use them in practice, further study is necessary to set goals for a number of resident forceps deliveries that translate into use in practice.

Embarazo, trauma obstétrico y sus efectos sobre el piso pélvico. Revisión de la literatura / Pregnancy, obstetric trauma and their effects on the pelvic floor. Literature review / Gravidez, trauma obstétrico e seus efeitos sobre o piso pélvico. Revisão da literatura

Los trastornos del piso pélvico son una condición que afecta al 30% de las mujeres de todas las edades, e incluyen un abanico de patologías anatómicas y funcionales que, aunque no alteran la supervivencia de las pacientes, sí afectan en gran medida su calidad de vida. Dentro de estas patologías encontramos la incontinencia urinaria y fecal, el prolapso de órganos pélvicos y la disfunción sexual. La importancia del tema radica en que los trastornos del piso pélvico son más frecuentes después del embarazo y el parto por los cambios inherentes al embarazo mismo y por el trauma obstétrico que son factores de riesgo conocidos y que pueden estar asociados con secuelas graves del piso pélvico. Es por ello que se deben prever posibles complicaciones en el trabajo de parto que puedan aumentar el riesgo de trastornos del piso pélvico e implementar ciertas estrategias de prevención y de intervenciones seguras, que minimicen los daños y las secuelas que se producen en el largo plazo. A continuación haremos una revisión de la literatura sobre los cambios fisiológicos del embarazo en el piso pélvico, los trastornos disfuncionales más frecuentes, el papel del parto intervenido en la aparición de estos trastornos y las estrategias de prevención que pueden implementarse para disminuir los efectos sobre el piso pélvico.

Pelvic floor disorders are a medical condition that affects 30% of women of all ages, and include a plethora of anatomical and functional pathologies that, though they do not alter patient survival, do affect their well-being to a large extent. Urinary and fecal incontinence, pelvic organ prolapse and sexual dysfunction are among these pathologies. The importance of the subject rests on the fact that pelvic floor disorders are more frequent after pregnancy and birth as a result of inherent changes to pregnancy itself and obstetric injuries that are widely known risk factors, which may be associated to severe damage to the pelvic floor. Therefore, possible labor complications that may increase the risk of pelvic floor disorders must be prevented, along with the implementation of certain preventive strategies and safe interventions that reduce damage and possible long-term consequences. Here, we present a literature review about the physiological changes in the pelvic floor during pregnancy, the most frequent dysfunctional disorders, the role of forceps delivery in the appearance of different conditions, and preventive strategies that may be implemented to reduce the effects on the pelvic floor.

Os transtornos do piso pélvico são uma condição que afeta a 30% das mulheres de todas as idades, e incluem um leque de patologias anatómicas e funcionais que, embora não alteram a supervivência das pacientes, sim afetam em grande medida sua qualidade de vida. Dentro destas patologias encontramos a incontinência urinaria e fecal, o prolapso de órgãos pélvicos e a disfunção sexual. A importância do tema radica em que os transtornos do piso pélvico são mais frequentes depois da gravidez e do parto pelas mudanças inerentes à gravidez em si e pelo trauma obstétrico que são fatores de risco conhecidos e que podem estar associados com sequelas graves do piso pélvico. É por isso que se devem prever possíveis complicações no trabalho de parto que possam aumentar o risco de transtornos do piso pélvico e implementar certas estratégias de prevenção e de intervenções seguras, que minimizem os danos e as sequelas que se produzem em longo prazo. A continuação faremos uma revisão da literatura sobre as mudanças fisiológicas da gravidez no piso pélvico, os transtornos disfuncionais mais frequentes, o papel do parto intervindo na aparição destes transtornos e as estratégias de prevenção que podem implementar-se para diminuir os efeitos sobre o piso pélvico.

Cardiomiopatia hipertrófica e gravidez / Hypertrophic cardiomyophaty and pregnancy

A cardiomiopatia hipertrófica (CMH) é doença incomum na gestação, caracterizada pela hipertrofia do ventrículo esquerdo, com expressão fenotípica e manifestações clínicas variáveis. O diagnóstico pode ser confirmado pelo ecocardiograma com Doppler. Trata-se de enfermidade bem tolerada na gestação, entretanto, pode desencadear insuficiência cardíaca congestiva, com grave comprometimento materno e perinatal. O tratamento para a gestante com CMH depende da obstrução do fluxo do ventrículo esquerdo. Em paciente sintomática portadora da forma obstrutiva, devem-se evitar grandes perdas sanguíneas e uso de drogas vasodilatadoras durante o trabalho de parto. O parto vaginal mostrou-se seguro, mas o período expulsivo deve ser abreviado com uso de fórceps naquelas que apresentam sintomatologia obstrutiva. Raras complicações podem acontecer, o que requer planejamento do parto e adequada monitorização materna e fetal. (AU)

The Hypertrophic Cardiomyopathy (HCM) is an uncommon condition during pregnancy, which attends with a left ventricular hypertrophy, and phenotypic expression and clinical are both variable. The diagnosis can be confirmed by Doppler echocardiography. Several studies show that it is a disease well tolerate during pregnancy, however it may trigger congestive heart failure with severe maternal and perinatal commitment. The treatment of pregnant patients with HCM depends on the presence of symptoms caused by obstruction of the left ventricle. In symptomatic patient carrying the obstructive form should be avoided large blood loss and use of vasodilator drugs during labor. Vaginal delivery is safe, but the expulsive period should be abbreviated with the use of forceps in those with obstructive symptoms. Rare complications can occur and therefore it is necessary a delivery planning and an adequate maternal and fetal monitoring. (AU)