1/51. Arteriovenous malformation of mesosalpinx associated with a 'vanishing' ectopic pregnancy: diagnosis with three-dimensional color power angiography.We describe two cases of pelvic arteriovenous malformation diagnosed with the aid of three-dimensional color power angiography. In both cases, beta-human chorionic gonadotropin (beta-hCG) increased to significant levels (8413 and 1560 mIU/ml, respectively); however, neither an intrauterine nor an adnexal gestational sac could be found. In each case, we observed an adnexal mass with several tortuous areas exhibiting abundant turbulent flow. The diagnosis of arteriovenous malformation was made and further assessment by three-dimensional color power angiography and magnetic resonance imaging (MRI) was carried out. The complex vascular anatomy of arteriovenous malformation, including its feeding vessels and drainage, was clearly depicted by three-dimensional color power angiography and correlated well with magnetic resonance angiography. Levels of beta-hCG decreased in subsequent tests, and eventually became negative 2-3 months later without and intervention. We believe that an involutional ectopic pregnancy induced the rapid growth of the arteriovenous malformations within the mesosalpinx. Three-dimensional color power angiography can be performed quickly and easily, using existing ultrasound equipment. It improves our understanding of complicated vasculature, and thus is a useful adjunct to two-dimensional and color Doppler ultrasound in the diagnosis of arteriovenous malformation.- - - - - - - - - - ranking = 1keywords = pregnancy, gestation (Clic here for more details about this article) |
2/51. Anaesthetic management of a woman who became paraplegic at 22 weeks' gestation after a spontaneous spinal cord haemorrhage secondary to a presumed arteriovenous malformation.A 19-yr-old woman developed a paraplegia with a T10 sensory level at 22 weeks' gestation. The spinal injury was caused by spontaneous bleed of a presumed arteriovenous malformation in the spinal cord. She presented for Caesarean section at term because of the breech position of her fetus. The successful use of a combined spinal epidural-regional anaesthetic is described and the risks of general and regional anaesthesia are discussed.- - - - - - - - - - ranking = 0.28854846610771keywords = gestation (Clic here for more details about this article) |
3/51. Prenatal detection of a giant bilateral thoracic vascular lesion: prognostic evaluation and genetic aspects.We describe a giant bilateral vascular mass in the skin of the chest diagnosed by ultrasound investigation in a fetus of 20 gestational weeks. Ultrasound and colour Doppler investigations detected no signs of early congestive heart failure but rapid and excessive enlargement of the vascular mass. Indications of increased fetal blood volume were found. The fetus had additional minor anomalies. Early in utero manifestation suggests a severe vascular malformation.- - - - - - - - - - ranking = 0.057709693221542keywords = gestation (Clic here for more details about this article) |
4/51. Cervical pregnancy: assessment with three-dimensional power Doppler imaging and successful management with selective uterine artery embolization.Cervical pregnancy is frequently associated with extensive hemorrhage which, in severe cases, may be stopped only by hysterectomy. We report a case of an anembryonic cervical pregnancy diagnosed at 10 weeks, and associated with a large arteriovenous malformation. The patient was conservatively managed with simple selective uterine artery embolization. After embolization, her vaginal bleeding ceased and the level of serum beta-human chorionic gonadotropin decreased rapidly. No additional treatment was given. The patient's postoperative course was uneventful and the cervical mass had disappeared at the follow-up 4 months later. To the best of our knowledge, this is the first report of conservative management of cervical pregnancy simply by uterine artery embolization. The role of three-dimensional power Doppler ultrasonography in the assessment of cervical pregnancy and in monitoring the therapeutic response is discussed.- - - - - - - - - - ranking = 1.5076644908455keywords = pregnancy (Clic here for more details about this article) |
5/51. Persistent hypoglossal artery associated with arteriovenous malformation: a case report.A rare case of persistent hypoglossal artery in conjunction with arteriovenous malformation was presented. MRA could delineate persistent hypoglossal artery and arteriovenous malformation very clearly. The patient suffered from intracranial hemorrhage from in the 37th week of pregnancy. MRI, MRA, angiography, and CT of this rare condition are reported.- - - - - - - - - - ranking = 0.18845806135569keywords = pregnancy (Clic here for more details about this article) |
6/51. prenatal diagnosis of intrahepatic arteriovenous shunts.A case of mixed intrahepatic arteriovenous shunts in a fetus diagnosed at 35 weeks' gestation is presented. color Doppler ultrasonography in the fetal liver demonstrated complicated vascular connections fed by the hepatic arterial branches and drained into the portal and middle hepatic veins. Pulsed Doppler ultrasonography identified a high cardiac output state by the detection of increased flow velocities of the great vessels. The contribution of Doppler ultrasonography to hemodynamic changes is highlighted. The management is briefly discussed.- - - - - - - - - - ranking = 0.057709693221542keywords = gestation (Clic here for more details about this article) |
7/51. vascular malformations in the uterus: ultrasonographic diagnosis and conservative management.OBJECTIVE: To investigate the presence and outcome of uterine vascular malformations in women with abnormal premenopausal bleeding. STUDY DESIGN: In this observational study 265 consecutive patients with abnormal premenopausal bleeding were examined by the same ultrasonographer with transvaginal gray-scale ultrasonography and color Doppler imaging. A final diagnosis of uterine vascular malformation was based on ultrasonographic findings, hysteroscopy or histological findings. patients suspected of uterine vascular malformations at ultrasonography were closely monitored. RESULTS: In nine patients (3.4%) we found ultrasonographic features of uterine vascular malformations. color Doppler imaging showed hypervascularity, marked turbulence, and low-impedance, high-velocity flow. In six patients the condition resolved spontaneously. Two patients with hydatiform mole needed chemotherapy and their condition normalized. One patient underwent a selective embolization of the uterine artery. Subsequently, five patients had uncomplicated pregnancies after resolution of the vascular malformation. CONCLUSION: Uterine vascular malformations are more common than previously thought. We conclude that conservative management is a valuable option in many of the acquired pregnancy-related cases that are diagnosed with color Doppler imaging.- - - - - - - - - - ranking = 0.18845806135569keywords = pregnancy (Clic here for more details about this article) |
8/51. arteriovenous malformations of the uterus associated with medical abortion.Seven cases of uterine arteriovenous malformations associated with pregnancy were initially suspected by the history of prolonged bleeding after a medical abortion and then confirmed by color Doppler scanning. All cases were managed expectantly and resolved spontaneously. When AVMs required diagnosis by pathology or angiography, only the most severe cases would have been reported. Now that they can be recognized on ultrasound, it is possible that mild cases such as these will be found to be much more common.- - - - - - - - - - ranking = 0.18845806135569keywords = pregnancy (Clic here for more details about this article) |
9/51. pregnancy after medical management of a uterine arteriovenous malformation. A case report.BACKGROUND: The natural history of conservatively managed uterine arteriovenous malformations is largely unknown, and the risks associated with subsequent pregnancy and vaginal delivery have not been established. CASE: A multiparous woman with a previously reported history of uterine arteriovenous malformation was monitored throughout pregnancy and vaginal delivery. Serial ultrasound studies were performed prior to a successful induction of labor for severe preeclampsia at 34 weeks' gestation. CONCLUSION: To our knowledge, this is the first report of pregnancy and vaginal delivery in a woman with a prior history of a medically managed uterine arteriovenous malformation. Noninvasive treatment of uterine arteriovenous malformations is rare, and the potential long-term risks of this approach, including pregnancy, remain uncertain.- - - - - - - - - - ranking = 0.81154193864431keywords = pregnancy, gestation (Clic here for more details about this article) |
10/51. Transcatheter embolotherapy of maternal pulmonary arteriovenous malformations during pregnancy.Study objectives: To determine if transcatheter embolotherapy is safe and effective for the treatment of pulmonary arteriovenous malformations during pregnancy. DESIGN: Prospective study. SETTING: Specialized hereditary hemorrhagic telangiectasia centers at Yale University School of medicine and St. Michael's Hospital, University of Toronto. patients: Seven pregnant women (age range, 24 to 34 years; gestational age range, 16 to 36 weeks) undergoing transcatheter embolotherapy. INTERVENTIONS: Transcatheter embolotherapy in all patients. Measurements and results: Thirteen pulmonary arteriovenous malformations in seven patients were embolized with detachable silicone balloons and/or stainless steel coils without incident. The estimated fetal radiation dose ranged from < 50 to 220 mrad. No complications of pulmonary arteriovenous malformations occurred in any of the patients after transcatheter embolotherapy. The mothers went on to deliver healthy babies in all cases. CONCLUSIONS: Transcatheter embolotherapy of maternal pulmonary arteriovenous malformations performed by an experienced radiologist appears to be safe and effective after 16 weeks of gestational age.- - - - - - - - - - ranking = 1.0577096932215keywords = pregnancy, gestation (Clic here for more details about this article) |
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