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Feeding Vessels (feeding + vessel)

Distribution by Scientific Domains

Medical Sciences	50%

Selected Abstracts

Role of color Doppler imaging in diagnosing and managing pregnancies complicated by placental chorioangioma

JOURNAL OF CLINICAL ULTRASOUND, Issue 5 2002
Yaron Zalel MD
Abstract Purpose The purpose of this study was to evaluate the role of color Doppler imaging in the diagnosis and management of placental chorioangioma. Methods The medical records, sonographic reports, and sonograms of all pregnant women who had placental masses diagnosed in our sonography unit during the years 1992 through 2000 and had been evaluated using both gray-scale and color Doppler sonography were included in this study. Subjective evaluation of the amount and distribution of intralesional vascularity by color Doppler imaging was made in all cases. Cases of chorioangioma of the placenta were compared with cases of placental hemorrhage or subchorionic hematoma. The outcomes of the pregnancies were also recorded. Results Fifteen cases of placental masses were evaluated; 8 of them were identified as placental hemorrhage or subchorionic hematoma on the basis of the sonographic findings. The other 7 cases were identified prenatally as placental chorioangioma, at a mean menstrual age of 23 weeks and a mean maternal age of 29 years. The mean size of the tumor was 6.5 cm (range, 4,13 cm). All cases of chorioangioma showed either substantial internal vascularity or a large feeding vessel within the tumor. Three infants were delivered at term with favorable outcome; 2 of them demonstrated reduction of the intratumoral blood flow during follow-up. The other 4 cases were delivered at or before 32 weeks' menstrual age (1 intrauterine fetal death, 2 terminated pregnancies, and 1 normal infant). No case of placental hematoma demonstrated blood flow within the lesion or was associated with complications of the pregnancy. Conclusions Color Doppler imaging helps differentiate placental chorioangioma from other placental lesions and may be useful in the prenatal follow-up of chorioangioma. © 2002 Wiley Periodicals, Inc. J Clin Ultrasound 30:264,269, 2002; Published online in Wiley InterScience (www.interscience.wiley.com). DOI: 10.1002/jcu.10072 [source]

The thoracodorsal vascular tree-based combined fascial flaps

MICROSURGERY, Issue 2 2009
Meisei Takeishi M.D.
In this study, combined fascial flaps pedicled on the thoracodorsal artery and vein were raised and used for thin coverage of dorsal surfaces of the fingers and the dorsum of hand and foot with favorable results. The combined fascial flaps consist of the serratus anterior fascia and the axillary fascia at the entrance of the latissimus dorsi. These flaps were used for reconstruction of the hand, fingers, or foot in nine patients. Reconstruction was performed for burn or burn scar contracture, after resection of malignant tumors, posttraumatic skin defects, and chronic regional pain syndrome. The sites of reconstruction were dorsal surfaces of fingers, dorsum of hand, wrist and palm, forearm, lower leg, and foot. The flaps were used in various configurations including two independent fascial flaps, two-lobed fascial flap with separate feeding vessels, and composite fascial and thoracodorsal artery perforator flap. The fascial and skin flaps survived in all nine patients, with favorable results both functionally and esthetically. Good coverage of soft tissue defects and good recovery of range of motion in resurfaced joints were achieved. There were no complications. The scars at the sites of harvest were not noticeable. The advantage of this method is that not only a single flap but flaps of a variety of configurations can be harvested for different purposes. The thoracodorsal vascular tree-based combined fascial flaps are useful for the reconstruction of soft tissue defects in the extremities. © 2008 Wiley-Liss, Inc. Microsurgery, 2009. [source]

Endoscopic laser coagulation of feeding vessels in large placental chorioangiomas: report of three cases and review of invasive treatment options

PRENATAL DIAGNOSIS, Issue 3 2009
Waldo Sepulveda
Abstract Objective To report three cases of large placental chorioangiomas managed with endoscopic laser coagulation of the feeding vessels, and review the literature regarding cases of chorioangioma treated with invasive techniques. Methods Intrauterine endoscopic surgery was performed using a 2.5-mm fetoscope under epidural anesthesia. Coagulation of the feeding vessels was attempted with laser energy, and the operation was completed with amniodrainage. Results The feeding vessels were successfully coagulated in one case, resulting in a term delivery. Histopathologic examination of the placenta confirmed a capillary chorioangioma with extensive necrosis. There were intraoperative complications in the other two cases, including bleeding at the site of coagulation requiring intrauterine transfusion in one, and incomplete vascular ablation in the other. In the former case the infant was born prematurely and developed chronic renal insufficiency. In the latter, the fetus died within the first week of the surgery. Conclusions There are limited interventions available for the management of large, symptomatic placental chorioangiomas. Although they can be treated with endoscopic laser coagulation of the feeding vessels, fetal bleeding, exsanguination, and death are potential complications of the procedure; therefore, this technique should be used with caution. The role of this treatment modality in the early devascularization of placental chorioangiomas prior to the development of significant complications warrants consideration. Copyright © 2009 John Wiley & Sons, Ltd. [source]