[Perioperative β-adrenergic blocking agents and postoperative prognosis].

Perioperative myocardial ischemia occurs frequently within 48 hrs postoperatively, with few characteristic symptoms and its prognosis is known to be poor. Anesthesiologists should carefully monitor these patients with high risk factors for cardiac events until the 2nd postoperative day. Medical treatment should be initiated promptly according to the cause of perioperative increase in sympathetic nervous activity.

Vascular perfusion limits mesenteric lymph flow during anaphylactic hypotension in rats.

To determine fluid extravasation in the splanchnic vascular bed during anaphylactic hypotension, the mesenteric lymph flow (Q(lym)) was measured in anesthetized rats sensitized with ovalbumin, along with the systemic arterial pressure (P(sa)) and portal venous pressure (P(pv)). When the antigen was injected into the sensitized rats (n = 10), P(sa) decreased from 125 ± 4 to 37 ± 2 mmHg at 10 min with a gradual recovery, whereas P(pv) increased by 16 mmHg at 2 min and returned to the baseline at 10 min. Q(lym) increased 3.

Assessment of peripheral arterial disease of lower limbs with ultrasonography and ankle brachial index at the initiation of hemodialysis.

Aim: Peripheral arterial disease (PAD) of the lower limbs carries high risks of leg amputation, quality of life deterioration, and death in hemodialysis (HD) patients. However, the frequency of PAD at the initiation of HD has not been adequately documented. In addition, the applicability of ultrasonography to diagnosing PAD is not yet clear in HD patients.