These seals are quite similar to rod and piston seals, but are adapted to rotary motion. Circumferential seals are high-speed, low-leakage seals that require less space than face seals. The contacting ...

Among the 77 patients assigned to undergo circumferential pulmonary-vein ablation, ablation was repeated because of recurrent atrial fibrillation in 26 percent of patients and atypical atrial flutter ...

Hypertension (HT) is the one of the most common causes of myocardial dysfunction. Although in the majority of hypertensive patients in stage 1 or 2 of the disease, global left ventricular (LV) ...

Treatment of rectal cancer has changed dramatically over the last decade. The worldwide introduction of total mesorectal excision in combination with the increasing ...

Clinical Cancer Advances 2007: Major Research Advances in Cancer Treatment, Prevention, and Screening—A Report From the American Society of Clinical Oncology Treatment of rectal cancer has changed ...