JOURNAL ARTICLE
RANDOMIZED CONTROLLED TRIAL

[The effect of early goal lactate clearance rate on the outcome of septic shock patients with severe pneumonia]

Huan-huan Tian, Sha-sha Han, Chang-jun Lv, Tao Wang, Zhi Li, Dong Hao, Quan-mei Shang, Xiao-zhi Wang
Zhongguo Wei Zhong Bing Ji Jiu Yi Xue, Chinese Critical Care Medicine, Zhongguo Weizhongbing Jijiuyixue 2012, 24 (1): 42-5
22248751

OBJECTIVE: To observe the clinical effects of 10%, 30% lactate clearance rate and early goal-directed therapy (EGDT) as 6-hour resuscitation goals directing treatment in septic shock patients with severe pneumonia.

METHODS: In this randomized, perspective study, septic shock patients with severe pneumonia were divided into control group and experimental group, which included 10% lactate clearance rate group and 30% lactate clearance rate group, adopting random number method. The control group was treated with 6-hour EGDT strategy, and the experimental groups were treated with 10% lactate clearance rate protocol and 30% lactate clearance rate protocol respectively, beside the EGDT.

RESULTS: There were 19 patients in control group, and 43 patients in experimental group, which included 22 patients in 10% lactate clearance rate group and 21 patients in 30% lactate clearance rate group. Patients were well matched by basic features. After 48 hours, the acute physiology and chronic health evaluation II (APACHE II ) score of both 10% lactate clearance rate group (13.76 ± 6.00, P < 0.05) and 30% lactate clearance rate group (13.60 ± 6.18, P < 0.05) were lower than that of control group (18.15 ± 6.62). There were no differences in time of mechanical ventilation (hours) between control group and experimental group (10% group 136.90 ± 100.02, 30% group 97.00 ± 75.20, control group 152.32 ± 96.51, P > 0.05). The length in intensive care unit (ICU, days) of 10% and 30% lactate clearance rate groups were significantly shorter than control group (10% group 7.94 ± 6.00, 30% group 7.51 ± 3.99, control group 11.31 ± 5.97, both P < 0.05). The three groups had no differences in 7-day mortality rate (10% group 18.18%, 30% group 14.29%, control group 21.05%, all P > 0.05), but the 28-day mortality of 10% and 30% lactate clearance rate groups were significantly lower than control group (10% group 36.36%, 30% group 28.57%, control group 63.16%), especially in 30% lactate clearance rate group (P < 0.05).

CONCLUSION: For the septic shock patients with severe pneumonia, prompt archiving EGDT strategy and 6-hour lactate clearance more than 30% were associated with an optimal outcome.

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