Michael J. Grimm

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PATIENTS AND METHODS 140 patients with aortic dissection type A were admitted for cardiac surgery. Seventy-seven patients experienced their dissection in the winter season (from November to April). We analyzed cases of ascending aortic dissection associated with alpine skiing. RESULTS In 17 patients we found skiing-related aortic dissections. Skiers were(More)
This paper describes a two-million-channel 40-MHz-bandwidth, digital spectrum analyzer under development at the Jet Propulsion Laboratory. The analyzer system will serve as a prototype processor for the sky survey portion of NASA's Search for Extraterrestrial Intelligence program and for other applications in the Deep Space Network. The analyzer digitizes(More)
With interest, we read the article by Sarris et al. that demonstrated a number of considerable early and late complications of interventionally placed atrial septal defect (ASD) closure devices [1]. A series of 56 patients is reported. It would be important to know how many interventionally implanted ASD-closure devices were implanted in these centers.(More)
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