Your browser doesn't support javascript.
loading
Mostrar: 20 | 50 | 100
Resultados 1 - 20 de 2.400
Filtrar
1.
Am J Case Rep ; 22: e934168, 2021 Nov 01.
Artigo em Inglês | MEDLINE | ID: mdl-34719664

RESUMO

BACKGROUND Placenta accreta is an abnormal invasive placenta that can be life-threatening because of the risk of hemorrhage. Its incidence has increased due to high cesarean delivery rates. Early gestational age placenta accreta is difficult to diagnose and misdiagnosis can lead to inappropriate treatment. CASE REPORT Patient 1, a 34-year-old woman (para 2 abortus 1) with 2 previous cesarean deliveries, was referred to our department for vaginal bleeding and abdominal pain. She received 2 curettages for blighted ovum; then, ultrasound examination found uterus perforation and fluid in the Douglas cavity. Exploratory laparotomy confirmed uterine perforation, and a hysterectomy was performed. Histopathological examination revealed placenta accreta. Patient 2, a 35-year-old woman (para 3) with 3 previous cesarean deliveries, was treated at a previous hospital for vaginal bleeding and stomach enlargement. She received serial chemotherapy for gestational trophoblastic neoplasia. Ultrasound examination showed a nonhomogeneous opacity in the lower uterine corpus with color score 4. Total abdominal hysterectomy was performed, and histopathological examination revealed placenta accreta. Patient 3, a 32-year-old woman (para 2) with 2 previous cesarean deliveries, had irregular vaginal bleeding suspected as gestational trophoblastic neoplasia due to ultrasound examination and positive beta-human chorionic gonadotropin. Ultrasound and MRI examination showed enlargement with nonhomogeneous opacity, color score 4, and bridging vessels. Due to our previous experience, we suspected it was a placenta accreta and performed a hysterectomy. The histopathology result indicated placenta accreta. CONCLUSIONS The key point in diagnosing placenta accreta properly is to evaluate the morphometric changes based on the structure using imaging like ultrasound. Collection and analysis of these data enables precise diagnosis in early gestational age placenta accreta.


Assuntos
Diagnóstico Ausente , Placenta Acreta , Adulto , Cesárea , Feminino , Idade Gestacional , Humanos , Histerectomia , Placenta , Placenta Acreta/diagnóstico por imagem , Placenta Acreta/cirurgia , Gravidez
2.
In Vivo ; 35(6): 3633-3639, 2021.
Artigo em Inglês | MEDLINE | ID: mdl-34697206

RESUMO

BACKGROUND/AIM: Placenta percreta is a rare event, but it poses serious problems due to potential hemorrhagic events. We report a particular case of placenta percreta with massive hematuria due to maternal bladder invasion, and describe the surgical protocol performed that resulted in an excellent outcome. CASE REPORT: A 33-year-old patient, at 27th weeks gestational age, presented in the emergency room of the Urology Department with urinary blood clot acute retention, because of massive hematuria from a placenta percreta with bladder invasion. After extracting the clots from the bladder, and coagulation of an area of venous ectasies of the posterior wall, hematuria ceased, but appeared after two days, necessitating again the bladder clots removal and coagulation. A surgical team with gynecologists, urologists, anesthesiologists and a neonatologist was composed, and after bilateral ureteral double J insertion, cesarean section was performed followed by hemostatic hysterectomy and partial cystectomy, bilateral internal iliac artery ligature and repair of the bladder wall. The postoperative evolution was without incidents; the Foley catheter was removed in the 14th postoperative day. CONCLUSION: In the context of a massive hematuria of a pregnant woman, the urologist must always consider a diagnosis of complicated placenta percreta.


Assuntos
Placenta Acreta , Adulto , Cesárea , Feminino , Hematúria/etiologia , Humanos , Histerectomia , Placenta Acreta/diagnóstico , Placenta Acreta/cirurgia , Gravidez , Bexiga Urinária/diagnóstico por imagem , Bexiga Urinária/cirurgia
3.
BMJ Case Rep ; 14(10)2021 Oct 01.
Artigo em Inglês | MEDLINE | ID: mdl-34598970

RESUMO

Placenta accreta spectrum disorder varies from minimally adherent placenta to deeply invasive placenta. Placenta percreta is a rare cause for uterine rupture and the incidence of morbidly adherent placenta is on the rise due to increase in the rates of caesarean section. We report a case of a 32-year-old, G2P1L1 who presented to us at 27 weeks in a state of haemodynamic shock with intrauterine fetal death. She had a history of prior caesarean section complicated by postpartum haemorrhage requiring B-Lynch suturing. With an initial diagnosis of caesarean scar rupture, she underwent an emergency laparotomy. Intraoperatively, the caesarean scar was found to be intact and uterine fundal rupture with placental protrusion identified. She underwent caesarean hysterectomy and was discharged in a stable condition. The histopathology report confirmed the diagnosis of placenta percreta.


Assuntos
Placenta Acreta , Ruptura Uterina , Adulto , Cesárea/efeitos adversos , Feminino , Humanos , Histerectomia , Placenta , Placenta Acreta/diagnóstico por imagem , Placenta Acreta/etiologia , Placenta Acreta/cirurgia , Gravidez , Suturas , Ruptura Uterina/etiologia , Ruptura Uterina/cirurgia
6.
J Med Case Rep ; 15(1): 448, 2021 Sep 08.
Artigo em Inglês | MEDLINE | ID: mdl-34493340

RESUMO

BACKGROUND: Placenta accreta is known to be associated with significant maternal morbidity and mortality-primarily due to intractable bleeding during abortion or delivery at any level of gestation. The complications could be reduced if placenta accreta is suspected in a patient with a history of previous cesarean delivery and the gestational sac/placenta is located at the lower part of the uterus. Then, a proper management plan can be instituted, and complications can be reduced. The diagnosis of placenta accreta in the first trimester of pregnancy is considered uncommon. CASE PRESENTATION: A 34-year-old Malay, gravida 4, para 3, rhesus-negative woman was referred from a private hospital at 13 weeks owing to accreta suspicion for further management. She has a history of three previous lower-segment cesarean sections. She also had per vaginal bleeding in the early first trimester, which is considered to indicate threatened miscarriage. Transabdominal ultrasound revealed features consistent with placenta accreta spectrum. She was counseled for open laparotomy and hysterectomy because of potential major complication if she continued with the pregnancy. Histopathological examination revealed placenta increta. CONCLUSION: A high index of suspicion of placenta previa accreta must be in practice in a patient with a history of previous cesarean deliveries and low-lying placenta upon ultrasound examination during early gestation.


Assuntos
Ameaça de Aborto , Placenta Acreta , Ameaça de Aborto/diagnóstico por imagem , Adulto , Cesárea , Feminino , Humanos , Mães , Placenta Acreta/diagnóstico por imagem , Placenta Acreta/cirurgia , Gravidez , Primeiro Trimestre da Gravidez
9.
Zhonghua Fu Chan Ke Za Zhi ; 56(8): 537-544, 2021 Aug 25.
Artigo em Chinês | MEDLINE | ID: mdl-34420285

RESUMO

Objective: To investigate the safety, efficacy and application indication of intra-operative cell salvage (IOCS) in cesarean section. Methods: A total of 1 265 pregnant women who received IOCS blood transfusion during cesarean section in 11 tertiary A hospitals from August 2016 to January 2019 were collected and divided into <1 500 ml group (796 cases) and ≥1 500 ml group (469 cases) according to the amount of blood loss during cesarean section. The general clinical data, ultrasonic imaging data, perinatal and puerperium indicators were analyzed retrospectively. The risk factors of intraoperative blood loss ≥1 500 mL using IOCS transfusion were analyzed by logistic multivariate regression. Results: (1) A total of 848 001 ml of blood was recovered and a total of 418 649 ml of blood was transfused in 1 265 pregnant women who received IOCS transfusions, which was equivalent to 23 258 U red blood cell suspension, greatly saving medical resources. The intraoperative blood loss in <1 500 ml group and ≥1 500 ml group was 800 ml (300-1 453 ml) and 2 335 ml (1 500-20 000 ml), respectively. No amniotic fluid embolism, severe adverse reactions, shock and death occurred in the two groups. (3) Multivariate regression analysis showed that age ≥35 years (OR=1.5, 95%CI: 1.1-1.9), prenatal hemoglobin level <110 g/L (OR=1.7, 95%CI: 1.3-2.2), history of uterine surgery (OR=1.8, 95%CI: 1.3-2.6), placenta previa (OR=1.9, 95%CI: 1.1-3.1), placenta accreta (OR=2.6, 95%CI: 1.8-3.9), blood pool in the placenta (OR=1.6, 95%CI: 1.1-2.3), abnormal posterior placenta muscle wall (OR=1.8, 95%CI: 1.2-2.6), placenta projecting to the anterior uterine wall (OR=3.0, 95%CI: 1.3-7.0) were risk factors for blood loss ≥1 500 ml in obstetric transfusion using IOCS technique, with statistical significance (all P<0.05). Conclusion: IOCS is safe and effective in cesarean section, which could save the medical resources and reduces medical expenses, however, it is necessary to strictly master the application indication.


Assuntos
Placenta Acreta , Placenta Prévia , Adulto , Perda Sanguínea Cirúrgica , Cesárea , Feminino , Humanos , Gravidez , Estudos Retrospectivos
10.
Zhonghua Fu Chan Ke Za Zhi ; 56(8): 545-553, 2021 Aug 25.
Artigo em Chinês | MEDLINE | ID: mdl-34420286

RESUMO

Objective: To study the risk factors of adverse pregnancy outcomes for induced abortion of cesarean scar pregnancy in midtrimester. Methods: A national multicenter retrospective study was conducted. A total of 154 singletons pregnant women with cesarean scar pregnancy during the second trimester induced abortion by various reasons in 12 tertiary A hospitals were selected, their pregnant outcomes were observed and the risk factors of serious adverse outcomes were analyzed with univariate and multivariate logstic regression; the role of ultrasound and MRI in predicting placenta accreta and severe adverse outcomes was evaluated, the effectiveness of uterine artery embolization (UAE) in preventing hemorrhage in pregnant women with and without placenta accreta was compared. Results: Among 154 subjects, the rate of placenta accreta was 42.2% (65/154), the rate of postpartum hemorrhage≥1 000 ml was 39.0% (60/154), the rate of hysterectomy was 14.9% (23/154), the rate of uterine rupture was 0.6% (1/154). The risk factor of postpartum hemorrhage≥1 000 ml and hysterectomy was placenta accreta (P<0.01). For each increase in the number of parity, the risk of placenta accreta increased 2.385 times (95%CI: 1.046-5.439; P=0.039); and the risk of placenta accreta decreased with increasing ultrasound measurement of scar myometrium thickness (OR=0.033, 95%CI: 0.001-0.762; P=0.033). The amount of postpartum hemorrhage and hysterectomy rate in the group with placenta accreta diagnosed by ultrasound combined with MRI were not significantly different from those in the group with placenta accreta diagnosed by ultrasound only or MRI only (all P>0.05). For pregnant women with placenta accreta, there were no significant difference in the amount of bleeding and hysterectomy rate between the UAE group [median: 1 300 ml; 34% (16/47)] and the non-embolization group (all P>0.05); in pregnant women without placenta accreta, the amount of bleeding in the UAE group was lower than that in the non-embolization group (median: 100 vs 600 ml; P<0.01), but there was no significant difference in hysterectomy rate [2% (1/56) vs 9% (3/33); P>0.05]. Conclusions: (1) Placenta accreta is the only risk factor of postpartum hemorrhage≥1 000 ml with hysterectomy for induced abortion of cesarean scar pregnancy in midtrimester; multi-parity and ultrasound measurement of scar myometrium thickness are risk factors for placenta accreta. (2) The technique of using ultrasound and MRI in predicting placenta accreta of cesarean scar pregnancy needs to be improved. (3) It is necessary to discuss of UAE in preventing postpartum hemorrhage for induced abortion of cesarean scar pregnancy in midtrimester.


Assuntos
Placenta Acreta , Embolização da Artéria Uterina , Cicatriz , Feminino , Humanos , Placenta Acreta/diagnóstico por imagem , Placenta Acreta/epidemiologia , Gravidez , Segundo Trimestre da Gravidez , Estudos Retrospectivos
11.
Nat Commun ; 12(1): 4408, 2021 08 03.
Artigo em Inglês | MEDLINE | ID: mdl-34344888

RESUMO

Placenta accreta spectrum (PAS) is a high-risk obstetrical condition associated with significant morbidity and mortality. Current clinical screening modalities for PAS are not always conclusive. Here, we report a nanostructure-embedded microchip that efficiently enriches both single and clustered circulating trophoblasts (cTBs) from maternal blood for detecting PAS. We discover a uniquely high prevalence of cTB-clusters in PAS and subsequently optimize the device to preserve the intactness of these clusters. Our feasibility study on the enumeration of cTBs and cTB-clusters from 168 pregnant women demonstrates excellent diagnostic performance for distinguishing PAS from non-PAS. A logistic regression model is constructed using a training cohort and then cross-validated and tested using an independent cohort. The combined cTB assay achieves an Area Under ROC Curve of 0.942 (throughout gestation) and 0.924 (early gestation) for distinguishing PAS from non-PAS. Our assay holds the potential to improve current diagnostic modalities for the early detection of PAS.


Assuntos
Testes para Triagem do Soro Materno/métodos , Placenta Acreta/diagnóstico , Trofoblastos/patologia , Adulto , Biomarcadores/sangue , Agregação Celular , Estudos de Coortes , Diagnóstico Diferencial , Feminino , Humanos , Dispositivos Lab-On-A-Chip , Testes para Triagem do Soro Materno/instrumentação , Pessoa de Meia-Idade , Nanoestruturas , Placenta Acreta/sangue , Placenta Prévia/sangue , Placenta Prévia/diagnóstico , Gravidez , Curva ROC , Reprodutibilidade dos Testes
12.
J Obstet Gynaecol Res ; 47(10): 3488-3497, 2021 Oct.
Artigo em Inglês | MEDLINE | ID: mdl-34365701

RESUMO

AIM: The aim of the study was to develop and validate a magnetic resonance imaging (MRI)-based nomogram for predicting invasive forms of placental accreta spectrum (PAS) disorders (placenta increta and percreta) with "uncertain ultrasound diagnosis." METHODS: This was a retrospective cohort study of a primary cohort of 118 patients and a validation cohort of 65 patients with "uncertain ultrasound diagnosis," who were further evaluated by MRI. MRI signs associated with PAS disorders were analyzed between invasive and noninvasive groups by both univariate and logistic regression to construct the nomogram. The accuracy and discriminative ability of the nomogram were measured by concordance index (C-index) and calibration curve internally and externally. RESULTS: The history of previous cesarean deliveries (odds ratio [OR], 3.27; 95% confidence interval [CI], 1.16-9.27), loss of double-line sign (OR, 9.49; 95% CI, 3.06-29.48), abnormal uterine bulging (OR, 4.05; 95% CI, 1.53-10.69), and disorganized abnormal placenta vascularity (OR, 3.38; 95% CI, 1.09-10.50) were imputed for the nomogram. The C-index of the nomogram was 0.85 for internal validation and 0.84 for external validation. Calibration curve showed good agreement with predicted risk and actual observation for both primary and validation cohort. CONCLUSIONS: MRI can be a useful adjunct for clinical staging of patients with "uncertain ultrasound diagnosis."


Assuntos
Placenta Acreta , Doenças Placentárias , Feminino , Humanos , Imageamento por Ressonância Magnética , Nomogramas , Placenta , Placenta Acreta/diagnóstico por imagem , Gravidez , Estudos Retrospectivos
13.
J Med Life ; 14(3): 367-375, 2021.
Artigo em Inglês | MEDLINE | ID: mdl-34377203

RESUMO

Accreta placenta spectrum is a complex obstetrical condition of abnormal placental invasion associated with severe maternal morbidity. This study aimed to analyze our therapeutic management and counseling of the cases with placenta accreta spectrum (PAS) associated with placenta previa. We performed a retrospective study of pregnant women with PAS associated with placenta previa at the Filantropia Clinical Hospital between January 2017-April 2021. In these cases, the earlier diagnosis was realized by an ultrasonographic scan and was confirmed by histopathological findings after the surgical treatment. The conservative management was obtained in one case at <37 weeks of gestation, and the maternal outcome was uterine preservation. Among the 12 patients, the mean age was 34±3.44 years. All women had risk factors for abnormally invasive placenta, such as placenta previa or previous cesarean delivery. Most women underwent planned cesarean delivery at the mean gestational age of 36.4±0.9 weeks. In our study, the uterus was preserved in only one case (8.33%), and hysterectomy with preservation of ovaries was performed in the rest of the cases. Mean maternal blood loss during surgery was 2175±1440 ml. Severe maternal outcomes were recorded only in one case (8.33%). We identified a low uterine preservation rate and a good perinatal outcome. Conservative management should be reserved for fertility desire and extensive disease due to surgical difficulty. Early identification of the risk factors and strategic management may improve maternal and fetal outcomes.


Assuntos
Placenta Acreta , Placenta Prévia , Adulto , Cesárea , Feminino , Humanos , Histerectomia , Lactente , Recém-Nascido , Placenta , Placenta Acreta/diagnóstico por imagem , Placenta Acreta/epidemiologia , Placenta Prévia/diagnóstico por imagem , Placenta Prévia/epidemiologia , Placenta Prévia/cirurgia , Gravidez , Estudos Retrospectivos
14.
Sci Rep ; 11(1): 16914, 2021 08 19.
Artigo em Inglês | MEDLINE | ID: mdl-34413380

RESUMO

This study aimed to review the obstetric complications during subsequent pregnancies after uterine artery embolization (UAE) for postpartum hemorrhage (PPH) by exploring the relationship between prior UAE and obstetric complications through a meta-analysis. We conducted a systematic literature review through March 31, 2021, using PubMed, Scopus, and the Cochrane Central Register of Controlled Trials in compliance with the PRISMA guidelines and determined the effect of prior UAE for PPH on the rate of placenta accreta spectrum (PAS), PPH, placenta previa, hysterectomy, fetal growth restriction (FGR), and preterm birth (PTB). Twenty-three retrospective studies (2003-2021) met the inclusion criteria. They included 483 pregnancies with prior UAE and 320,703 pregnancies without prior UAE. The cumulative results of all women with prior UAE indicated that the rates of obstetric complications PAS, hysterectomy, and PPH were 16.3% (34/208), 6.5% (28/432), and 24.0% (115/480), respectively. According to the patient background-matched analysis based on the presence of prior PPH, women with prior UAE were associated with higher rates of PAS (odds ratio [OR] 20.82; 95% confidence interval [CI] 3.27-132.41) and PPH (OR 5.32, 95% CI 1.40-20.16) but not with higher rates of hysterectomy (OR 8.93, 95% CI 0.43-187.06), placenta previa (OR 2.31, 95% CI 0.35-15.22), FGR (OR 7.22, 95% CI 0.28-188.69), or PTB (OR 3.00, 95% CI 0.74-12.14), compared with those who did not undergo prior UAE. Prior UAE for PPH may be a significant risk factor for PAS and PPH during subsequent pregnancies. Therefore, at the time of delivery, clinicians should be more attentive to PAS and PPH when women have undergone prior UAE. Since the number of women included in the patient background-matched study was limited, further investigations are warranted to confirm the results of this study.


Assuntos
Embolização da Artéria Uterina , Feminino , Retardo do Crescimento Fetal/etiologia , Humanos , Histerectomia , Tamanho da Partícula , Placenta Acreta/etiologia , Hemorragia Pós-Parto/etiologia , Gravidez , Nascimento Prematuro/etiologia , Viés de Publicação , Risco , Embolização da Artéria Uterina/efeitos adversos
17.
Clin Imaging ; 80: 50-57, 2021 Dec.
Artigo em Inglês | MEDLINE | ID: mdl-34242814

RESUMO

OBJECTIVE: This study aimed to quantify the magnetic resonance imaging (MRI) features of placenta accreta spectrum (PAS) and to use MRI-based scores to classify them in high-risk gravid patients. MATERIALS AND METHODS: The clinical data and MRI features of 65 high-risk gravid patients diagnosed with PAS were retrospectively reviewed. The MRI features of PAS were analysed and compared using the chi-squared test, and the odds ratios (ORs) for significant risk factors for classification of PAS were identified via a multivariate logistic regression model. A receiver-operating characteristic (ROC) curve was used to calculate cut-off values and their corresponding sensitivity, specificity, and accuracy in classifying PAS. RESULTS: We identified 3 significant risk features for classification of PAS, including placental heterogeneity (OR = 13.604), abnormal vascularization at the placental-maternal interface (OR = 9.528), and focal myometrial interruption (OR = 118.779). The significant risk features for classification of PAS were scored according to their OR values, as 3 points (OR ≥ 20), 2 points (10 ≤ OR < 20), or 1 point (OR < 10). Based on the scores of the 3 risk features, a cut-off score of 4.5 points achieved optimal sensitivity (94.3%), specificity (90%), and accuracy (92.3%) for classifying PAS in high-risk gravid patients. CONCLUSION: Quantifying these MRI features including placental heterogeneity, abnormal vascularization at the placental-maternal interface, and focal myometrial interruption can make a classification of PAS in high-risk gravid patients.


Assuntos
Placenta Acreta , Feminino , Humanos , Imageamento por Ressonância Magnética , Miométrio , Placenta , Placenta Acreta/diagnóstico por imagem , Gravidez , Estudos Retrospectivos
19.
Acta Med Port ; 34(4): 266-271, 2021 Mar 31.
Artigo em Inglês | MEDLINE | ID: mdl-34214418

RESUMO

INTRODUCTION: Placenta accreta spectrum disorders are among the leading causes of maternal morbidity and mortality and their prevalence is likely to increase in the future. The risk of placenta accreta spectrum disorders is highest in cases of placenta previa overlying a previous cesarean section scar. Few studies have evaluated placenta accreta spectrum disorders in Portugal. The aim of this study was to review the cases of placenta accreta spectrum overlying a cesarean section scar managed in a Portuguese tertiary center over the last decade. MATERIAL AND METHODS: Retrospective, cross-sectional study, with data collected from hospital databases. Only cases with histopathological confirmation of placenta accreta spectrum were included. RESULTS: During the study period, 15 cases of placenta accreta spectrum overlying a cesarean section scar were diagnosed (prevalence 0.6/1000). All cases were diagnosed antenatally. A transverse cesarean section was present in all cases; 13 were managed by a scheduled multidisciplinary approach, while two required emergent management. Total or subtotal hysterectomy was performed in 12 cases. There were no cases of maternal or neonatal death. Histopathological evaluation confirmed nine cases of placenta accreta, three cases of placenta increta and three cases of placenta percreta. DISCUSSION: Early antenatal diagnosis is important for a programmed multidisciplinary management of these cases, which may reduce potential morbidity and mortality and ensure better obstetric outcomes. CONCLUSION: This case series of placenta accreta spectrum overlying a cesarean section scar reports the reality of a tertiary-care perinatal center in Portugal, in which no maternal or neonatal mortality due to placenta accreta spectrum was registered over the last decade; this may be attributed to prenatal diagnosis and a coordinated multidisciplinary team approach.


Assuntos
Cesárea/estatística & dados numéricos , Cicatriz , Adulto , Estudos Transversais , Feminino , Humanos , Histerectomia , Recém-Nascido , Placenta Acreta/epidemiologia , Placenta Acreta/cirurgia , Portugal/epidemiologia , Gravidez , Diagnóstico Pré-Natal , Estudos Retrospectivos
20.
BMJ Case Rep ; 14(7)2021 Jul 09.
Artigo em Inglês | MEDLINE | ID: mdl-34244192

RESUMO

Uterine scar dehiscence with underlying placenta is often misdiagnosed as placenta accreta spectrum both prenatally and intraoperatively due to the absence of myometrial tissue in the area. Misdiagnosis generates obstetric anxiety and results in overtreatment which carries a risk of iatrogenic injury. We present a case of the antenatal diagnosis of uterine dehiscence in a 36-year-old woman with a history of two caesarean deliveries and a low-lying placenta. We further describe the sonographic features useful for differentiating this condition from placenta accreta spectrum in instances where the placenta lies under an area of full thickness uterine scar dehiscence.


Assuntos
Placenta Acreta , Placenta Prévia , Adulto , Cesárea/efeitos adversos , Feminino , Humanos , Placenta/diagnóstico por imagem , Placenta Acreta/diagnóstico por imagem , Placenta Acreta/cirurgia , Placenta Prévia/diagnóstico por imagem , Placenta Prévia/cirurgia , Gravidez , Diagnóstico Pré-Natal , Ultrassonografia Pré-Natal
SELEÇÃO DE REFERÊNCIAS
DETALHE DA PESQUISA
...