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美国医师协会(ACP)指南不再建议强化血糖控制!
今天《Annals of internal medicine》 发表了“住院患者应用强化胰岛素控制血糖的临床实践指南”
Abstract
Description: The American College of Physicians (ACP) developed this guideline to present the evidence for the link between the use of intensive insulin therapy to achieve different glycemic targets and health outcomes in hospitalized patients with or without diabetes mellitus.
Methods: Published literature on this topic was identified by using MEDLINE and the Cochrane Library. Additional articles were obtained from systematic reviews and the reference lists of pertinent studies, reviews, and editorials, as well as by consulting experts; unpublished studies on ClinicalTrials.gov were also identified. The literature search included studies published from 1950 through March 2009. Searches were limited to English-language publications. The primary outcomes of interest were short-term mortality and hypoglycemia. This guideline grades the evidence and recommendations by using the ACP clinical practice guidelines grading system.
Recommendation 1: ACP recommends not using intensive insulin therapy to strictly control blood glucose in non–surgical intensive care unit (SICU)/medical intensive care unit (MICU) patients with or without diabetes mellitus (Grade: strong recommendation, moderate-quality evidence). 无论是否合并糖尿病,对非外科/内科ICU患者ACP都不推荐强化胰岛素疗法严格控制血糖(推荐等级:强烈,证据级别:中级)
Recommendation 2: ACP recommends not using intensive insulin therapy to normalize blood glucose in SICU/MICU patients with or without diabetes mellitus (Grade: strong recommendation, high-quality evidence).
无论是否合并糖尿病,ACP都不建议SICU和MICU患者,通过强化胰岛素治疗使血糖正常化(推荐等级:强烈,证据级别:高级)
Recommendation 3: ACP recommends a target blood glucose level of 7.8 to 11.1 mmol/L (140 to 200 mg/dL) if insulin therapy is used in SICU/MICU patients (Grade: weak recommendation, moderate-quality evidence). SICU或MICU患者若应用胰岛素,ACP推荐的血糖水平为7.8-11.1(140-200 mg/dl), (推荐等级:弱,证据级别:中级)
该指南的建立基础是同期发表的系统综述:
Intensive Insulin Therapy in Hospitalized Patients: A Systematic Review。
Background: The benefits and harms of intensive insulin therapy (IIT) titrated to strict glycemic targets in hospitalized patients remain uncertain.
Purpose: To evaluate the benefits and harms of IIT in hospitalized patients.
Data Sources: MEDLINE and Cochrane Database of Systematic Reviews from 1950 to January 2010, reference lists, experts, and unpublished sources.
Study Selection: English-language randomized, controlled trials comparing protocols titrated to strict or less strict glycemic targets.
Data Extraction: Two reviewers independently abstracted data from each study on sample, setting, glycemic control interventions, glycemic targets, mean glucose levels achieved, and outcomes. Results were grouped by patient population or setting. A random-effects model was used to combine trial data on short-term mortality (≤28 days), long-term mortality (90 or 180 days), infection, length of stay, and hypoglycemia. The Grading of Recommendations Assessment, Development, and Evaluation system was used to rate the overall body of evidence for each outcome.
Data Synthesis: In a meta-analysis of 21 trials in intensive care unit, perioperative care, myocardial infarction, and stroke or brain injury settings, IIT did not affect short-term mortality (relative risk, 1.00 [95% CI, 0.94 to 1.07]). No consistent evidence showed that IIT reduced long-term mortality, infection rates, length of stay, or the need for renal replacement therapy. No evidence of benefit from IIT was reported in any hospital setting, although the best evidence for lack of benefit was in intensive care unit settings. Data combined from 10 trials showed that IIT was associated with a high risk for severe hypoglycemia (relative risk, 6.00 [CI, 4.06 to 8.87]; P < 0.001). Risk for IIT-associated hypoglycemia was increased in all hospital settings.
Limitations: Methodological shortcomings and inconsistencies limit the data in perioperative care, myocardial infarction, and stroke or brain injury settings. Differences in insulin protocols and patient and hospital characteristics may affect generalizability across treatment settings.
Conclusion: No consistent evidence demonstrates that IIT targeted to strict glycemic control compared with less strict glycemic control improves health outcomes in hospitalized patients. Furthermore, IIT is associated with an increased risk for severe hypoglycemia. |