Biomedical subjects
A Memis
Publications and source records attributed to A Memis.
[Renal arteriovenous fistula after kidney biopsy: color Doppler ultrasound and angiography diagnosis with embolization using the same procedures].
Arteriovenous (AV) fistulas are an uncommon but well-known complication of percutaneous renal biopsies. Recent studies suggest that Color Doppler Sonography is useful in the identification of post-biopsy renal AV fistulas. AV fistulas may cause persistent hematuria, hypertension, or high-output cardiac failure. In these cases surgical ligation or angiographic embolization is necessary. In this study we report a case of post-biopsy renal AV fistula identified with Color Doppler Sonography and Angiography. The renal AV fistula also was embolized with a platinum microcoil under angiographic and ultrasonographic guidance.
Embolization of visceral pseudoaneurysms with platinum coils and N-butyl cyanoacrylate.
BACKGROUND: We evaluated the efficacy of transcatheter embolization in visceral artery pseudoaneurysms with platinum coils and N-butyl-cyano-acrylate (NBCA). METHODS: Over the past 7 years, 20 patients were treated by transcatheter embolization in the same sitting with diagnostic angiography. Four right hepatic, one cystic, two gastroduodenal, one cavernosal artery, three superior mesenteric artery branch, and 11 renal artery branch pseudoaneurysms were included in the study. RESULTS: Surgery was completely avoided in 19 patients. In the remaining patient with a superior mesenteric artery branch pseudoaneurysm, endovascular embolization was unsuccessful. Eighteen pseudoaneurysms were thrombosed with coil embolization alone. The remaining three pseudoaneurysms needed NBCA embolization. Two patients died from sepsis within 5 weeks after embolization. CONCLUSION: Emergent diagnosis and treatment are essential in visceral artery pseudoaneurysms because of the high rate of death. Transcatheter embolization with platinum coils is an efficient, safe treatment of choice. NBCA may be used to avoid proximal embolization of the visceral arteries that could not be catheterized selectively because of tortuosity, vessel size, or anatomic location.
Mesenteric Castleman's disease: case report.
An asymptomatic case of hyaline vascular-type Castleman's disease localized to the mesentery and detected incidentally by ultrasound is presented. Computed tomographic, angiographic, and histologic findings are reported. This type of Castleman's disease predominates in the thorax and is very rare in the mesentery.
Mesenteric artery aneurysms in intestinal tuberculosis as a cause of lower gastrointestinal bleeding.
A 41-year-old woman with intestinal tuberculosis developed massive lower gastrointestinal hemorrhage. Angiographic examinations showed two aneurysms arising from the proximal branches of the superior mesenteric artery, one of which was resected and the other one was successfully embolized with microcoils. Understanding the angiographic features of the disease with gastrointestinal hemorrhage helps in making an appropriate clinical decision for the treatment strategy.
Partially thrombosed hepatic artery aneurysm mimicking pancreatic head carcinoma.
A 43-year-old man with hepatic artery aneurysm which mimicked pancreatic head carcinoma on computed tomography (CT) was studied with B-mode ultrasonography, color doppler ultrasonography, and angiography and the findings are discussed comparing the imaging modalities.
The so-called transcerebral veins: appearance in three different cases.
The radiologic findings in three patients with dilated transcerebral (medullary) veins detected on routine computed tomography and/or magnetic resonance imaging were reviewed. Sectional imaging showed the dilatation of transcerebral veins as well as the dilated superior ophthalmic veins in all patients. It also demonstrated the primary pathology: vein of Galen aneurysmal malformation; dural sinus fistula with varix; and dural arteriovenous fistula. All three patients had both arteriovenous fistula and sinovenous occlusion. We concluded that the dilated transcerebral veins developing secondary to elevation of the cerebral venous pressure, might be the useful radiologic finding of some dural vascular pathologies on sectional imaging.
Catheter and MR angiography of persistent trigeminal artery associated with occipital arteriovenous malformation.
We present a patient with an occipital arteriovenous malformation fed by the posterior cerebral artery coexisting with an ipsilateral persistent trigeminal artery. These anomalies were well demonstrated by MR angiography and confirmed by catheter angiography.
Use of histoacryl and a covered nitinol stent to treat a bronchobiliary fistula.
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Ceftriaxone: for the therapy of chronic bacterial prostatitis?
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