Use of hormones and risk of venous thromboembolism.

•The risk of venous thromboembolism (VTE) is not increased in women using long-acting reversible contraceptive methods (LARCs) with progestogens. •Oral contraceptives with levonorgestrel or norgestimate confer half the risk of VTE compared to oral contraceptives containing desogestrel, gestodene or drospirenone. •Progestogen-only pills do not confer an increased risk of VTE. •Women using transdermal contraceptive patches and combined oral contraceptives (COCs) are at an approximately eight times greater risk of VTE than non-users of hormonal contraceptives (HCs), corresponding to 9.7 events per 10,000 women/years. •Vaginal rings increase the risk of VTE by 6.5 times compared to not using HC, corresponding to 7.8 events per 10,000 women/years. •Several studies have demonstrated an increased risk of VTE in transgender individuals receiving hormone therapy (HT). •Hormone therapy during menopause increases the risk of VTE by approximately two times, and this risk is increased by obesity, thrombophilia, age over 60 years, surgery and immobilization. •The route of estrogen administration, the dosage and type of progestogen associated with estrogen may affect the risk of VTE in the climacteric. •Combined estrogen-progesterone therapy increases the risk of VTE compared to estrogen monotherapy. •Postmenopausal HT increases the risk of thrombosis at atypical sites.

Developing a Nomogram for Prioritizing Hysteroscopy in Endometrial Cancer Diagnosis: A Case-Control Study.

(1) Background: The pandemic led to significant healthcare disruptions, resulting in postponed surgeries and extended waiting times for non-urgent treatments, including hysteroscopies essential for diagnosing endometrial cancer. This study aims to formulate a risk stratification model to enhance the prioritization of hysteroscopy procedures in Brazil; (2) Methods: A case-control study was conducted at Vila Santa Catarina Hospital in São Paulo, analyzing the medical records of 2103 women who underwent hysteroscopy between March 2019 and March 2022. We used bivariate analysis and multivariate linear regression to identify risk factors associated with endometrial cancer and formulate a nomogram; (3) Results: The findings revealed a 5.5% incidence of pre-invasive and invasive endometrial disease in the study population, with an average waiting time of 120 days for hysteroscopy procedures. The main risk factors identified were hypertension, diabetes, postmenopausal bleeding, and obesity; (4) Conclusions: This research highlights the urgent need for efficient prioritization of hysteroscopy procedures in the wake of the pandemic. The developed nomogram is an innovative tool for identifying patients at higher risk of endometrial cancer, thus facilitating timely diagnosis and treatment and improving overall patient outcomes in a strained healthcare system.

Surgeon experience, robotic perioperative outcomes, and complications in gynecology.

OBJECTIVE: Robotic surgery is currently on the rise and has been widely applied all over the world. Gynecology offers great opportunities for the development of innovative techniques due to the magnitude of surgical needs. The aim of this study was to correlate perioperative complications, surgical time, and length of hospital stay with surgical diagnosis, procedure performed, and surgeon experience in robot-assisted gynecological surgeries in a 10-year period. METHODS: This was a retrospective, transversal, cross-sectional study involving 632 patients who underwent robotic gynecological surgery from January 2008 to December 2017 in a community hospital in Sao Paulo, Brazil. Medical records of robot-assisted gynecological operations were searched for perioperative complications, operative time, and length of hospital stay, correlating these outcomes with surgical diagnosis, procedure performed, and surgeon experience, considering those with 20 or less robotic procedures and surgeons with more than 20 cases in their career as in-training or qualified surgeons, respectively. RESULTS: Endometriosis (381 cases) was the most common surgical indication, followed by uterine myoma (171 patients). Qualified surgeons had 64% less complications than in-training surgeons (p=0.03) and achieved 20% lower surgical time and 15% shorter length of hospital stay. CONCLUSION: In this study, qualified surgeons with more than 20 robotic procedures had better perioperative outcomes and less complications than in-training surgeons during their first 20 robotic surgeries.

Cesarean rates according to the Robson classification: analysis in a municipal maternity in São Paulo.

OBJECTIVE: To investigate the distribution of parturients at Hospital Municipal da Vila Santa Catarina Dr. Gilson de Cássia Marques de Carvalho according to the Robson classification, identify the cesarean rate in each Robson Group, and understand which group contributes more to the prevalence of Cesarean sections. METHODS: This is a retrospective observational cross-sectional study conducted through the analysis of medical records of parturients admitted to Hospital Municipal da Vila Santa Catarina Dr. Gilson de Cássia Marques de Carvalho from October 2016 to August 2019. RESULTS: A total of 9,794 births were recorded, and 31% were by Cesarean section. The most prevalent Robson Groups were Group 3 (25.7%-2,519), 1 (22.8%-2,234), and 5 (20.5%-2,006). The relative contribution of Cesarean sections was greatest in Groups 5 (39%), 2 (18%), and 1 (12.5%). CONCLUSION: This study demonstrated the Robson classification is useful to lead to a more critical view, identifying the groups that deserve more attention, since they are the major contributors to cesarean rates; hence, the management protocols could be modified aim to reduce cesarean rates.

The use of convalescent plasma therapy in the management of a pregnant woman with COVID-19: a case report.

The coronavirus disease 19 (COVID-19) is responsible for the current worldwide pandemic. Treatment and prophylaxis are still under investigation. Convalescent plasma therapy could be an alternative. We report a case of a 41-year-old patient, at 28 weeks of gestation, was hospitalized with COVID-19. On the 10th day after onset of symptoms, the clinical picture worsened, and she required high-flow oxygen therapy (30L/minute), with 92% oxygen saturation, and chest X-ray showing mild bilateral opacities at lung bases. Blood tests showed D-dimer 1,004ng/mL, C-reactive protein 81mg/L, pro-calcitonin 0.05ng/mL and interleukine-6 42.9pg/mL. The therapy chosen was Tazocin® 12g/day, vancomycin 2g/day, and methylprednisolone 40mg/day. In addition, convalescent plasma therapy was administered (275mL) uneventfully, including SARS-CoV-2 antibodies and neutralizing antibodies >1:160. The patient had a fast recovery. The early administration of convalescent plasma, with high titers of neutralizing antibodies, may be an alternative option for severe COVID-19 during pregnancy, until further studies demonstrate an efficient and safe treatment or prophylaxis.

Cesarean rates according to the Robson classification: analysis in a municipal maternity in São Paulo

ABSTRACT Objective To investigate the distribution of parturients at Hospital Municipal da Vila Santa Catarina Dr. Gilson de Cássia Marques de Carvalho according to the Robson classification, identify the cesarean rate in each Robson Group, and understand which group contributes more to the prevalence of Cesarean sections. Methods This is a retrospective observational cross-sectional study conducted through the analysis of medical records of parturients admitted to Hospital Municipal da Vila Santa Catarina Dr. Gilson de Cássia Marques de Carvalho from October 2016 to August 2019. Results A total of 9,794 births were recorded, and 31% were by Cesarean section. The most prevalent Robson Groups were Group 3 (25.7%-2,519), 1 (22.8%-2,234), and 5 (20.5%-2,006). The relative contribution of Cesarean sections was greatest in Groups 5 (39%), 2 (18%), and 1 (12.5%). Conclusion This study demonstrated the Robson classification is useful to lead to a more critical view, identifying the groups that deserve more attention, since they are the major contributors to cesarean rates; hence, the management protocols could be modified aim to reduce cesarean rates.

The use of convalescent plasma therapy in the management of a pregnant woman with COVID-19: a case report

ABSTRACT The coronavirus disease 19 (COVID-19) is responsible for the current worldwide pandemic. Treatment and prophylaxis are still under investigation. Convalescent plasma therapy could be an alternative. We report a case of a 41-year-old patient, at 28 weeks of gestation, was hospitalized with COVID-19. On the 10th day after onset of symptoms, the clinical picture worsened, and she required high-flow oxygen therapy (30L/minute), with 92% oxygen saturation, and chest X-ray showing mild bilateral opacities at lung bases. Blood tests showed D-dimer 1,004ng/mL, C-reactive protein 81mg/L, pro-calcitonin 0.05ng/mL and interleukine-6 42.9pg/mL. The therapy chosen was Tazocin® 12g/day, vancomycin 2g/day, and methylprednisolone 40mg/day. In addition, convalescent plasma therapy was administered (275mL) uneventfully, including SARS-CoV-2 antibodies and neutralizing antibodies >1:160. The patient had a fast recovery. The early administration of convalescent plasma, with high titers of neutralizing antibodies, may be an alternative option for severe COVID-19 during pregnancy, until further studies demonstrate an efficient and safe treatment or prophylaxis.

Evaluation of a Laparoscopic Multi-approach Training for Obstetrics and Gynecology Residents / Avaliação de Treinamento de Múltiplas Abordagens em Laparoscopia para Residentes de Obstetrícia e Ginecologia

Abstract Objective To analyze the applicability and efficiency of amulti-approach laparoscopic training in improving basic laparoscopic skills of obstetrics and gynecology (OBGYN) residents. Methods Cross-sectional, observational and descriptive study, developed at the Experimentation and Surgery Training Center (CETEC, in the Portuguese acronym) of the Hospital Israelita Albert Einstein with OBGYN residents. Theoretical and practical tests were applied to 24 OBGYN residents to assess their laparoscopic skills before and after their participation in an 8-week course. The course involved theoretical lectures and practical laparoscopic surgery exercises developed using rubber models, black boxes, virtual simulators and animal models (pigs). Results There was an overall improvement in the ability of the residents, with an increase in the number of correct answers in the theoretical evaluation and decrease in the time needed to perform practical tests (needle holder assembly and laparoscopic node). The course was evaluated by the students as highly relevant for both improving their surgical skills and motivating them to continue practicing. Conclusion Laparoscopic training using multiple approaches resulted in significant improvement of surgical skills with a high satisfaction level of the participants. Further studies are still needed to measure the long-term retention of these acquired skills.

Resumo Objetivo Analisar a aplicabilidade e eficiência de um treinamento em laparoscopia com múltiplas abordagens, em melhorar as habilidades laparoscópicas básicas de residentes de ginecologia e obstetrícia (GO). Métodos Estudo transversal, observacional e descritivo, desenvolvido no Centro de Treinamento em Experimentação e Cirurgia (CETEC) do Instituto de Pesquisa do Hospital Albert Einstein com residentes de GO. Foram aplicadas avaliações teóricas e práticas a 24 residentes de GO com o objetivo de avaliar suas habilidades laparoscópicas antes e após sua participação em um curso de 8 semanas. O curso envolveu palestras teóricas e exercícios práticos de cirurgia laparoscópica através de modelos de borracha, caixas pretas, simuladores virtuais e modelos animais (porcos). Resultados Houve uma melhora geral na habilidade dos residentes, comaumento do número de respostas corretas na avaliação teórica e diminuição do tempo na execução dos testes práticos (montagem do porta-agulha e realização de nó laparoscópico). O curso foi avaliado pelos alunos como altamente relevante por melhorar suas habilidades cirúrgicas e motivá-los a continuar praticando. Conclusão O treinamento laparoscópico utilizando múltiplas abordagens resultou em melhora significativa das habilidades cirúrgicas atrelado a alto nível de satisfação dos participantes. Novos estudos ainda são necessários para mensurar a retenção destas habilidades adquiridas a longo prazo.

Evaluation of a Laparoscopic Multi-approach Training for Obstetrics and Gynecology Residents.

OBJECTIVE: To analyze the applicability and efficiency of a multi-approach laparoscopic training in improving basic laparoscopic skills of obstetrics and gynecology (OBGYN) residents. METHODS: Cross-sectional, observational and descriptive study, developed at the Experimentation and Surgery Training Center (CETEC, in the Portuguese acronym) of the Hospital Israelita Albert Einstein with OBGYN residents. Theoretical and practical tests were applied to 24 OBGYN residents to assess their laparoscopic skills before and after their participation in an 8-week course. The course involved theoretical lectures and practical laparoscopic surgery exercises developed using rubber models, black boxes, virtual simulators and animal models (pigs). RESULTS: There was an overall improvement in the ability of the residents, with an increase in the number of correct answers in the theoretical evaluation and decrease in the time needed to perform practical tests (needle holder assembly and laparoscopic node). The course was evaluated by the students as highly relevant for both improving their surgical skills and motivating them to continue practicing. CONCLUSION: Laparoscopic training using multiple approaches resulted in significant improvement of surgical skills with a high satisfaction level of the participants. Further studies are still needed to measure the long-term retention of these acquired skills.

OBJETIVO: Analisar a aplicabilidade e eficiência de um treinamento em laparoscopia com múltiplas abordagens, em melhorar as habilidades laparoscópicas básicas de residentes de ginecologia e obstetrícia (GO). MéTODOS: Estudo transversal, observacional e descritivo, desenvolvido no Centro de Treinamento em Experimentação e Cirurgia (CETEC) do Instituto de Pesquisa do Hospital Albert Einstein com residentes de GO. Foram aplicadas avaliações teóricas e práticas a 24 residentes de GO com o objetivo de avaliar suas habilidades laparoscópicas antes e após sua participação em um curso de 8 semanas. O curso envolveu palestras teóricas e exercícios práticos de cirurgia laparoscópica através de modelos de borracha, caixas pretas, simuladores virtuais e modelos animais (porcos). RESULTADOS: Houve uma melhora geral na habilidade dos residentes, com aumento do número de respostas corretas na avaliação teórica e diminuição do tempo na execução dos testes práticos (montagem do porta-agulha e realização de nó laparoscópico). O curso foi avaliado pelos alunos como altamente relevante por melhorar suas habilidades cirúrgicas e motivá-los a continuar praticando. CONCLUSãO: O treinamento laparoscópico utilizando múltiplas abordagens resultou em melhora significativa das habilidades cirúrgicas atrelado a alto nível de satisfação dos participantes. Novos estudos ainda são necessários para mensurar a retenção destas habilidades adquiridas a longo prazo.

Pregestational body mass index, weight gain during pregnancy and perinatal outcome: a retrospective descriptive study.

OBJECTIVE: To analyze the pregestational body mass index and weight gain during pregnancy, and to associate data to perinatal outcomes of pregnant women from a Prenatal Care Program. METHODS: A retrospective study was carried out with 151 patients seen at the Healthy Gestation Program of Hospital Israelita Albert Einstein . Data were collected from a medical chart review of the patients seen between March 2015 and March 2016. RESULTS: The chance of developing gestational diabetes for obese patients in early gestation was estimated at 7.5-fold as compared to patients with low or normal body mass index. CONCLUSION: There was a significant association between obesity in early pregnancy and the occurrence of gestational diabetes mellitus in this population.

Prevalence of rectovaginal colonization by group B Streptococcus in pregnant women seen at prenatal care program of a health organization.

OBJECTIVE: To evaluate the prevalence of group B Streptococci in pregnant women of a corporate health program, as well as the epidemiological correlations. METHODS: This retrospective study used medical records of patients who participated of the prenatal care program at a private hospital in the city of São Paulo (SP), Brazil, from 2015 to 2016. Those who abandoned the program or had incomplete data in their medical records were excluded. Quantitative variables were described by means, standard deviations, median, minimal and maximal values. Parity and socioeconomic status were described by absolute frequency and percentages. We used logistic regression models in the software (SPSS) to analyze correlations of variables according to vaginal-rectal culture, considering a 95%CI and p-values. Variables were age, number of pregnancies, weight gain in pregnancy and gestational age at delivery. RESULTS: A total of 347 medical records were included, and after applying the exclusion criteria, 287 medical records composed the final sample. Patients' age ranged between 17 and 44 years. Mean age was 30.6 years, 67 patients had positive result for group B Streptococcus (prevalence of 23.3%; 95%CI: 18.7-28.5). CONCLUSION: Considering the high prevalence of group B Streptococcus in our service, the antibiotic prophylaxis strategy based on rectovaginal culture screening approach seems to be cost-effective.

Prevalence of rectovaginal colonization by group B Streptococcus in pregnant women seen at prenatal care program of a health organization / Prevalência de colonização retovaginal por estreptococo do grupo B em gestantes de programa de atendimento pré-natal de instituição de saúde

ABSTRACT Objective To evaluate the prevalence of group B Streptococci in pregnant women of a corporate health program, as well as the epidemiological correlations. Methods This retrospective study used medical records of patients who participated of the prenatal care program at a private hospital in the city of São Paulo (SP), Brazil, from 2015 to 2016. Those who abandoned the program or had incomplete data in their medical records were excluded. Quantitative variables were described by means, standard deviations, median, minimal and maximal values. Parity and socioeconomic status were described by absolute frequency and percentages. We used logistic regression models in the software (SPSS) to analyze correlations of variables according to vaginal-rectal culture, considering a 95%CI and p-values. Variables were age, number of pregnancies, weight gain in pregnancy and gestational age at delivery. Results A total of 347 medical records were included, and after applying the exclusion criteria, 287 medical records composed the final sample. Patients' age ranged between 17 and 44 years. Mean age was 30.6 years, 67 patients had positive result for group B Streptococcus (prevalence of 23.3%; 95%CI: 18.7-28.5). Conclusion Considering the high prevalence of group B Streptococcus in our service, the antibiotic prophylaxis strategy based on rectovaginal culture screening approach seems to be cost-effective.

RESUMO Objetivo Identificar a prevalência de estreptococo do grupo B entre gestantes que frequentaram um programa de saúde corporativa, bem como as correlações com a colonização positiva. Métodos Estudo retrospectivo dos prontuários do pré-natal de um hospital privado em São Paulo, no período de 2015 a 2016. Foram excluídas as mulheres que abandonaram o programa ou apresentavam dados incompletos nos prontuários. As variáveis quantitativas foram descritas por média, desvios padrão, mediana, valores mínimos e máximos. A paridade e a condição socioeconômica foram descritos por frequência absoluta e percentagens. Utilizamos modelos de regressão logística no programa (SPSS) para analisar as correlações de variáveis de acordo com a cultura retovaginal, considerando IC95% e valores de p. As variáveis foram idade, número de gestações, peso ganho na gestação e idade gestacional no parto. Resultados Foram incluídos 347 prontuários e, após a aplicação dos critérios de exclusão, 287 prontuários compuseram a amostra final. A idade dos pacientes variou entre 17 e 44 anos. A média de idade foi de 30,6 anos, e 67 pacientes tiveram resultado positivo para o estreptococo do grupo B (prevalência de 23,3%; IC95%: 18,7-28,5). Conclusão Considerando a alta prevalência de estreptococos do grupo B em nosso serviço, existem evidências de que a estratégia de antibiótico profilaxia baseada na cultura retovaginal é custo-efetiva.

Pregestational body mass index, weight gain during pregnancy and perinatal outcome: a retrospective descriptive study / Índice de massa corporal pré-gestacional, ganho de peso na gestação e resultado perinatal: estudo descritivo retrospectivo

ABSTRACT Objective To analyze the pregestational body mass index and weight gain during pregnancy, and to associate data to perinatal outcomes of pregnant women from a Prenatal Care Program. Methods A retrospective study was carried out with 151 patients seen at the Healthy Gestation Program of Hospital Israelita Albert Einstein . Data were collected from a medical chart review of the patients seen between March 2015 and March 2016. Results The chance of developing gestational diabetes for obese patients in early gestation was estimated at 7.5-fold as compared to patients with low or normal body mass index. Conclusion There was a significant association between obesity in early pregnancy and the occurrence of gestational diabetes mellitus in this population.

RESUMO Objetivo Analisar o índice de massa corporal pré-gestacional e o ganho de peso na gestação, e associar os dados a desfechos perinatais de gestantes de um Programa de Gestação Saudável. Métodos Estudo retrospectivo realizado com 151 pacientes atendidas no Programa de Gestação Saudável do Hospital Israelita Albert Einstein. Os dados foram coletados a partir da revisão de prontuário das pacientes atendidas entre março de 2015 e março de 2016. Resultados A chance de desenvolvimento de diabetes gestacional para as pacientes com obesidade no início da gestação foi estimada em 7,5 vezes a mesma chance entre as pacientes com índice de massa corporal baixo ou normal no início da gravidez. Conclusão Houve associação significativa entre obesidade no início da gravidez e a ocorrência de diabetes mellitus gestacional nesta população.

Consensus on the investigation of thrombophilia in women and clinical management.

OBJECTIVE: To standardize the investigation and clinical management of women with laboratory and/or clinical abnormalities suggestive of thrombophilia, in order to optimize antithrombotic approach and indication of laboratory tests. METHODOLOGY: A discussion was carried out among 107 physicians (gynecologists/obstetricians, hematologists and vascular surgeons) present at a forum held at the Hospital Israelita Albert Einstein, in São Paulo (SP), Brazil. As a minimum criterion, 80% agreement was established in the voting to each recommendation of conduct in the final document. The cases in which there was agreement below 80% were discussed again, reaching a consensual agreement of conduct for the document writing. CONCLUSION: The standardization of an institutional consensus of suggestions of clinical approach contributes to a better management of the group to be evaluated and minimizes risks of intercurrent events. This was the first national consensus on the investigation of thrombophilia in women.

Consensus on the investigation of thrombophilia in women and clinical management / Consenso sobre a investigação de trombofilia em mulheres e manejo clínico

ABSTRACT Objective To standardize the investigation and clinical management of women with laboratory and/or clinical abnormalities suggestive of thrombophilia, in order to optimize antithrombotic approach and indication of laboratory tests. Methodology A discussion was carried out among 107 physicians (gynecologists/obstetricians, hematologists and vascular surgeons) present at a forum held at the Hospital Israelita Albert Einstein, in São Paulo (SP), Brazil. As a minimum criterion, 80% agreement was established in the voting to each recommendation of conduct in the final document. The cases in which there was agreement below 80% were discussed again, reaching a consensual agreement of conduct for the document writing. Conclusion The standardization of an institutional consensus of suggestions of clinical approach contributes to a better management of the group to be evaluated and minimizes risks of intercurrent events. This was the first national consensus on the investigation of thrombophilia in women.

RESUMO Objetivo Padronizar a investigação e o manejo clínico de mulheres com anormalidades clínicas e exames laboratoriais sugestivos de trombofilia, para melhorar a abordagem antitrombótica e otimizar a indicação de exames laboratoriais. Metodologia Foi conduzida discussão incluindo 107 médicos (ginecologistas/obstetras, hematologistas e cirurgiões vasculares) participantes de um fórum realizado no Hospital Israelita Albert Einstein, em São Paulo (SP). Como critério mínimo, estabeleceu-se concordância de 80% em votação para cada recomendação de conduta registrada em documento como diretrizes finais. Os casos em que a concordância esteve abaixo de 80% foram rediscutidos, para definir consenso na conduta. Conclusão A padronização e o estabelecimento de consenso institucional, com sugestões para abordagem clínica, contribui para melhorar o manejo do grupo a ser avaliado e minimizar os riscos de intercorrências. Este foi o primeiro consenso nacional sobre investigação de trombofilia em mulheres.

Economic evaluation of sFlt-1/PlGF ratio test in pre-eclampsia prediction and diagnosis in two Brazilian hospitals.

OBJECTIVES: To assess the economic impact of introducing the soluble FMS-like tyrosine kinase (sFlt-1) to placental growth factor (PlGF) ratio test into clinical practice in two Brazilian hospitals. METHODS: An economic model estimating the incremental value of the information from a Brazilian public and private healthcare payer perspective generated by the sFlt-1/PlGF ratio test, compared with current diagnostic procedures, in guiding the management of women with suspected pre-eclampsia. A cohort of 1000 pregnant women between 24 weeks and 36 + 6 weeks of gestation were managed in either a 'test' scenario in which the sFlt-1/PlGF test is used in addition to current diagnostic procedures, or a 'no-test' scenario. Information on the costs associated with diagnosis, prediction and management were derived from the cost database of Hospital M'Boi Mirim (public) and Hospital Einstein (private). The probabilities used in the decision tree were derived from PROGNOSIS. The main outcome measure from the model was the cost per patient per episode of care (from first suspicion of pre-eclampsia to birth). RESULTS: Introduction of the sFlt-1/PlGF ratio test resulted in cost savings in both settings (M'Boi Mirim: R$185.06 and Einstein: R$635.84 per patient) compared with a 'no-test' scenario. Savings are generated primarily through an improvement in diagnostic accuracy and a reduction in unnecessary hospitalization. CONCLUSIONS: The sFlt-1/PlGF ratio test has the potential to improve clinical decision-making and allocation of scarce resources by reducing unnecessary hospitalization of women at low risk of developing pre-eclampsia, and ensuring that women at higher risk are identified and managed appropriately.

Predictive factors for pelvic magnetic resonance in response to arterial embolization of a uterine leiomyoma.

OBJECTIVE: Minimally invasive methods are used as alternatives to treat leiomyomas and include uterine artery embolization, which has emerged as a safe, effective method. This study aims to evaluate the magnetic resonance imaging predictors for a reduction in leiomyoma volume in patients undergoing uterine artery embolization. METHODS: This prospective longitudinal study was performed at a university hospital. We followed 50 symptomatic premenopausal women with uterine leiomyomas who underwent uterine artery embolization. We examined 179 leiomyomas among these patients. Magnetic resonance imaging was performed one month before and six months after uterine artery embolization. Two radiologists who specialized in abdominal imaging independently interpreted the images. MAIN OUTCOME MEASURES: The magnetic resonance imaging parameters were the uterus and leiomyomas volumes, their localizations, contrast perfusion pattern and node-to-muscle ratio. RESULTS: Six months after treatment, the average uterine volume reduction was 38.91%, and the leiomyomas were reduced by 55.23%. When the leiomyomas were submucosal and/or had a higher node-to-muscle ratio in the T2 images, the volume reduction was even greater (greater than 50%). Other parameters showed no association. CONCLUSIONS: We conclude that symptomatic uterine leiomyomas in patients undergoing uterine artery embolization exhibit volume reductions greater than 50% by magnetic resonance imaging when the leiomyomas are submucosal and/or had a high node-to-muscle ratio in the T2 images.

Predictive factors for pelvic magnetic resonance in response to arterial embolization of a uterine leiomyoma

OBJECTIVE: Minimally invasive methods are used as alternatives to treat leiomyomas and include uterine artery embolization, which has emerged as a safe, effective method. This study aims to evaluate the magnetic resonance imaging predictors for a reduction in leiomyoma volume in patients undergoing uterine artery embolization. METHODS: This prospective longitudinal study was performed at a university hospital. We followed 50 symptomatic premenopausal women with uterine leiomyomas who underwent uterine artery embolization. We examined 179 leiomyomas among these patients. Magnetic resonance imaging was performed one month before and six months after uterine artery embolization. Two radiologists who specialized in abdominal imaging independently interpreted the images. Main Outcome Measures: The magnetic resonance imaging parameters were the uterus and leiomyomas volumes, their localizations, contrast perfusion pattern and node-to-muscle ratio. RESULTS: Six months after treatment, the average uterine volume reduction was 38.91%, and the leiomyomas were reduced by 55.23%. When the leiomyomas were submucosal and/or had a higher node-to-muscle ratio in the T2 images, the volume reduction was even greater (greater than 50%). Other parameters showed no association. CONCLUSIONS: We conclude that symptomatic uterine leiomyomas in patients undergoing uterine artery embolization exhibit volume reductions greater than 50% by magnetic resonance imaging when the leiomyomas are submucosal and/or had a high node-to-muscle ratio in the T2 images. .