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The effectiveness of iloprost, a prostacyclin derivative, was assessed in a placebo-controlled multicentre trial on 101 patients with chronic arterial disease, stage IV. All patients were on a basic local treatment, 53 randomly being assigned to the iloprost group, 48 to the placebo one. Both groups received identical saline infusions, one with the other without iloprost. Infusions were given on 28 consecutive days, iloprost being added at a dose of up to 2 ng/kg.min over six hours. At the end of the treatment period, 32 of 52 patients (61.5%) of the iloprost group and eight of the 47 in the placebo group (17%) had partial or complete healing of ulcers (P less than 0.05), the treatment effect persisting in both groups for a mean duration of at least one year. Iloprost was well tolerated, once individual dosages had been appropriately adjusted. Facial flushes, headache and nausea were the most common side effects. Heart rate and blood-pressure variations did not differ between the two groups.

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Only 9 of more than 900 operated patients with ventricular septal defects suffered from this rare combination. The problems of the diagnosis are discussed. Only in one case this diagnosis was made praeoperatively, in 6 cases intraoperatively and in two cases only postoperatively. In the last two cases a reoperation was necessary. The surgical methods are described and the results of surgery are communicated.