Cardiovascular and interventional radiology
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Following reports of hemorrhage from renal microaneurysms caused by renal biopsy, renal arteriography has been used increasingly as a screening procedure prior to renal biopsy as well as for diagnostic investigation. The incidence of renal microaneurysms has been documented in a group of 40 cases of suspected polyarteritis nodosa, of whom 15 were confirmed, and only 2 had microaneurysms. Both subjects with microaneurysms had more florid clinical disease. In view of the low incidence of microaneurysms it is suggested that renal angiography should be used as a diagnostic investigation only in cases with florid clinical disease and not as a screening procedure prior to renal biopsy.
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Cardiovasc Intervent Radiol · Jan 1984
Case ReportsAberrant right subclavian artery--esophageal fistula: a cause of overwhelming upper gastrointestinal hemorrhage.
A patient had massive hematemesis due to a fistula between an unsuspected aberrant right subclavian artery and the esophagus, with the fistula caused by prolonged esophageal intubation. Lack of awareness of this complication delayed the correct diagnosis, which was eventually made at a second angiographic study. With knowledge of the fistula, this potentially fatal situation can be promptly diagnosed by endoscopy and emergency angiography. Transcatheter embolization is suggested as a potential alternative to surgery in the treatment of the aberrant right subclavian artery--esophageal fistula.
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Cardiovasc Intervent Radiol · Jan 1981
Case ReportsArterial embolization for traumatic hemobilia with hepato-portal fistula.
A case of blunt liver trauma complicated by delayed upper gastrointestinal bleeding, probably hemobilia, was successfully treated by intra-arterial embolization. Laparotomy with liver resection or hepatic artery ligation--procedures that carry a high morbidity and mortality in a critically ill patient--were avoided. Embolization techniques can be a valuable alternative to surgery in the management of hepatic trauma with delayed hemorrhage in selected, high-risk cases.
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Cardiovasc Intervent Radiol · Jan 1981
Intralobar pulmonary sequestration: value of aortography and pulmonary arteriography.
Twelve patients with plain roentgenographic findings of intralobar pulmonary sequestration were evaluated with aortography and, in most instances, pulmonary arteriography. Correlative criteria from aortography and pulmonary arteriography permit a precise diagnosis to be made. Pulmonary infections must be differentiated from intralobar pulmonary sequestration because treatment for the latter should be surgical.