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991.
Embolization in cataclysmal hemorrhage caused by squamous cell carcinomas of the head and neck 总被引:2,自引:0,他引:2
Cataclysmal hemorrhage occurred in eight patients with known aggressive squamous cell tumors of the head and neck. Angiography showed neovascularity, narrowing, beading of affected arteries, and pseudoaneurysms. Postembolization residual stump formation was seen in a few patients. A total of 11 embolization procedures were performed in these eight patients. Embolization materials included polyvinyl alcohol, isobutyl-2-cyanoacrylate, and detachable balloons. Survival times ranged from 5 to 274 days, with no deaths as a direct result of hemorrhage. Only one severe complication following embolization was noted. 相似文献
992.
We present a study of 7 cases of Charcot-Marie-Tooth disease, associated with a dyskinesia clinically identical with essential tremor, in which motor conduction velocity in the upper limbs was normal or slightly diminished. An analysis of age of onset, sex distribution and clinical signs from cases in the literature is compared with the present series. A family with Charcot-Marie-Tooth disease in which affected members have widely different motor conduction velocity values is reported. Stress is laid upon the fact that categorization of this disease on electrophysiological studies in the upper limbs may present considerable difficulties. 相似文献
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995.
Increased granulocyte aggregation in vitro in diabetes mellitus 总被引:2,自引:0,他引:2
Elhadd TA; Bancroft A; McLaren M; Newton RW; Belch JJ 《QJM : monthly journal of the Association of Physicians》1997,90(7):461-464
Having previously shown an increase in white blood cell (WBC) aggregation
in groups known to have a high incidence of cardiovascular events, we
compared 28 patients with diabetes mellitus and no history or clinical
evidence of macrovascular disease with 28 age- and sex- matched normal
controls. Patients and controls had blood taken in the morning and analysed
for WBC aggregation in vitro using a whole blood technique. WBC aggregation
was significantly higher in the diabetic group compared with the normal
controls (mean +/- SD 31.10 +/- 10.26% vs. 25.7 +/- 9.38%; p < 0.04,
Student t-test). WBC aggregation predates the appearance of clinical
symptoms of macrovascular disease in diabetes.
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The author's experience with 72 patients with impotence, one patient with Peyronie disease (no impotence), and two healthy volunteers indicates that incompetence of the venocclusive mechanism of the corpora cavernosa is probably the most common cause of vasculogenic impotence. Manometric and angiographic studies are the key to diagnosis but only when performed while the venocclusive mechanism is activated. Activation is achieved by intracavernosal injection of a papaverine-phentolamine mixture. Pharmacomanometry, performed with the newly developed pharmacologic maintenance erectile flow (PMEF) method, enabled precise quantitation of the leak at a given cavernosal pressure. A new appreciation of the limited volume of normal flow in the cavernosal arteries indicates that cavernosal leak in the range of only 20 ml/min is probably capable of contributing to impotence. Pharmacocavernosography enabled identification of sites of leakage (key information in the planning of surgical correction) but was unreliable in the evaluation of the severity of leakage. 相似文献
1000.