Exercise training confers a greater improvement in claudication and maximum walking distance than PTA, especially in patients with disease confined to the superficial femoral artery.

This research has been sponsored by the Defense Atomic Support Agency NWER Subtask MA 012. r°A BSTRACTTolerance indices were determined, allowing for the effects of body maus, for thirteen mammalian species using the results of experiments in which animals were exposed near a normally reflecting surface to shocked blast waves whose durations ranged from 0. 24 to 400 msec. A general equation wai developed for expressing the interrelations between overpressure, duration c' the blast wave, body mass, and probability of survival. The species % ire divided into high-and :ow-tolerance groups applicable to "large" and "small" mammals, respectively. Since the available evidence indicated that man is more likely to be a member of the high-tolerance group, the tolerance index arbitrarily, but tentatively, assigned to him was the geometric mean of those for the large species. Using criteria developed in experimental studies, the results of the overall analysis were made applicable to free-stream situations in which the long 4 axis of the body is, perpendicular or parallel to the dir'ection of propagation of a s) •cked blast wave.

No abstract

Pre-operative specific IMT improves MIP pre-operatively and preserves it postoperatively. Further studies are required to establish if this is associated with reduced pulmonary complications.

SummaryTreatment with heparin or streptokinase was allocated randomly to 30 patients with life-threatening pulmonary embol'sm verified by angiography. Treatment was given for 72 hours and pulmonary angiography was repeated. There was significantly greater (P <0001) evidence of thrombolysis in those patients treated with streptokinase compared with those treated with heparin. The reduction of systolic and mean pulmonary arterial pressures was also significantly greater (P < 0 05 and P < 0-02 respectively) in the streptokinase group.Seven patients failed to complete 72 hours of the trial treatment: five successfully underwent pulmonary embolectomy. Six of these "failures" had initial pulmonary angiographic scores of 24 or more and systemic systolic blood pressure recordings of 100 mm Hg or less. Patients with these features should probably be considered for pulmonary embolectomy as the initial treatment.