View clinical trials related to Placenta Previa.
Filter by:Purpose to evaluate the effects of Vaginal Progesterone versus 17-Alpha-Hydroxyprogesterone Caproate for prevention of Emergent Cesarean Delivery in Asymptomatic Pregnant Women with Placenta Previa
Purpose to evaluate the effects of intramuscular 17-Alpha-Hydroxyprogesterone Caproate (17-OHPC) for prevention of Emergent Cesarean Delivery in symptomatic Pregnant Women with Placenta Previa
This study aim to investigate the characteristics, complications and perinatal outcomes in pregnant women with placenta previa.
Placenta previa (PP) is an obstetric condition that is closely linked with massive obstetric hemorrhage with a varied incidence about once in every 150-250 live births. Insertion of intrauterine balloon tamponade has been suggested in the management of massive postpartum hemorrhage (PPH). The Bakri balloon has a sausage-like spindle shape and a drainage lumen and is made of silicon. It has been used in cases of uterine atony and placenta previa with a success rate of 90%. However, Bakri balloon is not available in all countries. The aim of this study is to evaluate the efficacy of the use of intrauterine inflated Foley's catheter balloon with or without intravenous tranexamic acid to control PPH during cesarean delivery in cases of placenta previa.
Placenta previa (PP) is an obstetric condition that is closely linked with massive obstetric hemorrhage with a varied incidence about once in every 200 live births. It is considered one of the causes of the increased need for blood transfusion and cesarean hysterectomy. PPH due to PP typically starts during cesarean section (CS) in the placental bed, at the lower uterine segment mostly after placental separation. Proceeding for cesarean hysterectomy can be the only effective line of management in spite of the associated high morbidity rate. Various conservative measures have been developed to avoid hysterectomy and preserve fertility in patients with PP. Bilateral Uterine artery ligation (BUAL) is one of the reported surgical procedures carried out in these cases as it is easy and quick. It can be used alone or with adjunctive measures with a fair success rate. The aim is to reduce the blood supply to the uterus and to prevent postpartum hemorrhage. Tranexamic acid is a lysine analog which acts as an antifibrinolytic via competitive inhibition of the binding of plasmin and plasminogen to fibrin. The rationale for its use in the reduction of blood loss depending on the implication of the coagulation and fibrinolysis processes implicated in the control of PPH. However, concerns about possible thromboembolic events with parenteral administration of TA have stimulated increasing interest in its topical use.
Obstetric hemorrhage is estimated to be responsible for about 30% of all maternal deaths and is the leading direct etiology of maternal mortality worldwide . Especially in developing countries, hemorrhage is by far the leading cause of mortality and morbidity, with 140,000 women dying of PPH worldwide each year, which equates to 1 death every 4 min . The United Nations Millennium Development Fifth Goal, to reduce 75 % of maternal mortality by 2015 that not reached yet, cannot be held without significant improvements in postpartum hemorrhage (PPH) related mortality. Placenta previa (PP) is an obstetric condition that is closely linked with potentially life-threatening hemorrhage with varied incidence approximately four or five per 1000 pregnancies. Placenta previa is diagnosed when the placenta obstructs part or all the cervical os during antenatal ultrasonography. Placenta previa may be subclassified using ultrasound scan to be "major or complete" (implanted across the cervix) or "minor" (not implanted across the cervix). Currently, there is a dramatic increase in the incidence of placenta previa due to the increasing rate of cesarean delivery combined with increasing maternal age (6) It is considered one of the causes of the increased need for blood transfusion and cesarean hysterectomy. Various conservative measures have been developed to avoid hysterectomy and preserve fertility in patients with PP. Bilateral Uterine artery ligation (BUAL) is one of the reported surgical procedures carried out in these cases as it is easy and quick. It can be used alone or with adjunctive measures with a fair success rate. The aim is to reduce the blood supply to the uterus and to prevent PPH. There are a few methods to prevent and treat placenta previa bleeding immediately after cesarean delivery and control intra-operative bleeding during the cesarean operation. A safe intra-operative maneuver to arrest bleeding due to placenta previa is required. However, there is no gold standard treatment of placenta previa hemorrhage. The aims of the study to assess the effect of the novel sandwich technique for the control of hemorrhage during cesarean section due to placenta previa (double Transverse Compression Suture at the lower uterine segment plus Intrauterine inflated Foley's Catheter Balloon, (N&H technique) on control of massive bleeding due to central placenta previa in comparison with B-Lynch Transverse Compression Suture.
Cell free fetal DNA might predict abnormal placental invasion
This study evaluates the efficacy of prophylactic vaginal progesterone administration in reducing of the episodes of antepartum hemorrhage and subsequent prevention of preterm delivery in women with placenta previa.
Objective: To compare between the role of Transabdominal ultrasound versus Transvaginal ultrasound in evaluation of placental invasion in cases of placenta previa anterior wall with previous uterine scar applying the unified ultrasonographic descriptors suggested by the European working group on abnormally invasive placenta "EW-AIP' Also to evaluate the sensitivity and specificity of each criterion by comparing them with the final outcome of pregnancy Fifty pregnant women with persistent placenta previa (after 28 weeks' gestation) were prospectively enrolled into this study. Both transabdominal and transvaginal ultrasound were performed by two different operators who were blinded to the results of each other. the placenta was studied as regarding the exact loacalization and the unified descriptors were applied and evaluated by TAS and TVS. The ultrasound findings were analyzed with reference to the final diagnosis made during Cesarean delivery and histopathological examination
A total of 60 women pregnant more than 28 weeks gestation will be recruited from obstetric outpatient clinic (faculty of medicine -Cairo University Hospital) after being diagnosed of having placenta previa or low lying placenta by grey scale ultrasound. Placenta will be reexamined by grey scale ultrasound & color Doppler. Sonographic parameters evaluated will include placental location, loss of retro-placental clear zone, irregularity and thickness of the uterine-placental interface, the smallest myometrial thickness in sagittal and transverse planes, presence of lacunar spaces and bridging vessels & the presence of abnormal vasculature. The sonographic findings will be compared with intraoperative ones. Hysterectomy specimen (if any was done) will be evaluated histo-pathologically to assess the degree of placental invasion & to confirm the accreta status. The aim of the study is to determine the efficacy of ultrasound in predicting operative findings and associated co-morbidties among cases of placenta accreta.