The TREK system was designed to help physicians treat a broad selection of sufferers with tortuous anatomy, with the purpose of addressing complex lesions in difficult-to-dilate and narrowed vessels. Related StoriesStudy: Depressed patients three times more likely to see frequent chest painBolton Medical reports 1st commercial implant of TREO Abdominal Stent-Graft SystemPrasugrel linked to high-bleeding-risk in patients with steady coronary artery disease It can take multiple attempts to get the right catheter that is flexible enough to visit through twisting blood vessels and streamlined more than enough to push through calcified lesions, which can result in prolonged procedure instances, said Etsuo Tsuchikane, M.D., co-director of cardiovascular medication at the Toyohashi Center Middle in Japan.For some infertile couples, frozen sperm for IVF is usually advantageous because it decreases the risk of failure to obtain sperm on the day of oocyte retrieval. However prior to the results of the study, questions persisted regarding whether frozen sperm supplied comparable outcomes. Related StoriesARC Telehealth Program allows fertility individuals connect with medical professionals through mobile devicesFEC recognizes Rachel S.D., lead investigator.D., senior author and in vitro fertilization laboratory director. Researchers examined 2,039 consecutive IVF cycles between 1993 and 2003. Frozen and new IVF outcomes were compared Overall, as well as the subgroups of sperm retrieval strategies, including microsurgical epididymal sperm aspiration , testicular sperm extraction , and electroejaculation .