[Relationship between blood lactic level, lactic clearance, duration of lacticemia and prognosis of critically ill patients in intensive care unit].

Objective: To study and quantify the relationship between dynamic lactic acid monitoring indexes and prognosis of critically ill patients in intensive care unit (ICU).

Methods: One hundred and one critically ill patients with elevated blood lactic acid level were included in this study and divided into death group (n=50) and survival group (n=51). Differences in their lactic acid indexes (including: lactic acid level, duration of lacticemia, lactic clearance), acute physiology and chronic health evaluation II (APACHEII) score, and other clinical indicators which reflected organ/system status were compared, and prognostic significant lacticemia indexes were formulated by multi-variable logistic analysis.

[Effect of total parenteral nutrition with supplementation of glutamine on the plasma diamine oxidase activity and D-lactate content in patients with multiple organ dysfunction syndrome].

Objective: To explore the effect of total parenteral nutrition (TPN) supplemented with glutamine on the activity of plasma diamine oxidase (DAO) and D-lactate content in blood of patients with multiple organ dysfunction syndrome (MODS).

Methods: Forty patients with MODS in the intensive care unit (ICU) from September 2003 to June 2005 were involved in a randomized controlled study, and divided into routine group (group A, n=20), the glutamine +TPN treatment group (group B, n=20). All patients received equivalent nitrogen and caloric values in parenteral nutrition.

[The research of related factors affecting the longevity of double chamber cardiac pacemaker].

Objective: To research the related factors affecting the dual chamber cardiac pacemaker (PM) longevity, and provide the clinical basis for the PM reasonable application and design.

Methods: From 1991, 71 patients with AVB or SSS who used 9 kinds of dual-chamber PM were followed up. Every installed PM's related parameters, such as sensing electric current, resistance and pacing electric voltage, which may affect the PM longevity voltage had been recorded regularly.