Local thrombolysis may reduce mortality after acute vertebrobasilar artery occlusion. We focused on variables affecting recanalization, outcome and long-term prognosis. Thirty-six patients with vertebrobasilar artery occlusion were treated with local intraarterial thrombolytic therapy. Four of the survivors were among the 16 patients without recanalization. Recanalization was associated with a higher survival rate. Top-of-the-basilar-type occlusions have the highest recanalization rate. The thrombolytic medication used did not influence the recanalization frequency. One patient died due to an intracerebral bleed after thrombolysis. There was no association between the time interval (greater or less than 6 h) between the onset of symptoms and therapy initiation and survival. Relapses during follow-up (mean follow-up 3.7 years) did not occur. MRI/MRA and ultrasound studies during follow-up showed unchanged results in these patients. All survivors at the time of follow-up lived at home.
The GAT is suited for routine screening. It provides rapid and specific detection of D-positive red cells at clinically relevant concentrations. The test may (rarely) yield false-negative results due to insufficient administration of Rh immune globulin before testing.
In the last 6 years early amniocentesis for the prenatal diagnosis of chromosome aberrations has been established in many centers worldwide, but knowledge about the gynecological safety of the procedure is sparse. From 1990 to 1995 at the Evangelisches Krankenhaus Oberhausen (Germany) 3,277 early amniocenteses (between weeks 11 and 14) and 1,808 standard amniocenteses were performed in low-risk indication groups (advanced maternal age and anxiety). A complete follow-up including reports of fetal outcome was obtained in 4,444 cases (87.5%). A pregnancy age-related abortion rate was determined with a slightly higher rate of abortions up to week 28 of gestation in early amniocentesis. The total abortion rate up to week 28 after the procedure for cases with complete follow-up was 2% in early amniocentesis. Compared to standard amniocentesis performed under the same clinical conditions with an abortion rate of 1.3%, there is no statistical difference between early and standard amniocentesis (p = 0.0971). Hip and foot dislocations (22 cases) and pulmonary distress syndromes (8 newborns) showed no significant correlation with the gestational week. Given the high normal background rate of spontaneous abortions in the early period of pregnancy without an invasive procedure, early amniocentesis can be considered as a safe alternative to chorionic villus sampling and standard amniocentesis.
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