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Updated: Jul 14, 2026

Improving IV Insulin Administration in a Community Hospital
Published on: June 11, 2012
Strict glycemic control reduces EuroSCORE expected mortality in diabetic patients undergoing myocardial
Cosimo D'Alessandro1, Pascal Leprince, Jean Louis Golmard
1Institute of Cardiology, Division of Thoracic and Cardiovascular Surgery, Centre Hospitalier Universitaire Pitié-Salpêtrière, Assistance Publique-Hôpitaux de Paris, Université Pierre et Marie Curie-Paris, Paris, France. cosimodalessandro@wanadoo.fr
Insights
Strict glycemic control significantly reduces mortality in diabetic patients undergoing myocardial revascularization, particularly for moderate- to high-risk individuals. This protocol offers a protective effect, lowering mortality odds by 72%.
Area of Science:
- Cardiology
- Diabetology
- Surgical Outcomes
Background:
- Diabetic patients undergoing myocardial revascularization face elevated mortality risks.
- Effective glycemic control is crucial for improving outcomes in this patient population.
Purpose of the Study:
- To evaluate the impact of a strict glycemic control protocol on mortality rates in diabetic patients undergoing surgical myocardial revascularization.
- To assess the protocol's effectiveness across different risk strata.
Main Methods:
- A prospective study involving 300 diabetic patients (protocol group, group P) receiving insulin administration.
- A control group (group NP) of 300 diabetic patients from before protocol implementation.
- Risk stratification using EuroSCORE (low-moderate: 0-4, moderate-high: >4) and propensity analysis for bias control.
Main Results:
- The protocol group (P) demonstrated significantly lower observed mortality (1.3%) compared to expected mortality (4.3%, P = .01).
- Mortality odds were reduced by 72% (odds ratio, 0.282) in the protocol group after risk adjustment.
- The protocol showed a significant benefit in moderate- to high-risk patients (odds ratio, 0.24; P < .05).
Conclusions:
- Strict glycemic control via an insulin protocol significantly reduces expected mortality in diabetic patients undergoing myocardial revascularization.
- The benefits are most pronounced in moderate- to high-risk patients, highlighting the protocol's targeted efficacy.
Objective:
We sought to evaluate the effect of a strict glycemic control protocol on a series of diabetic patients undergoing surgical myocardial revascularization.
Methods:
Between January 2003 and June 2004, 300 diabetic patients undergoing myocardial revascularization received a local protocol of insulin administration (protocol, group P). Patients were divided into 2 risk classes, according to their additive EuroSCORE value: low-moderate risk (0-4) and moderate-high risk (>4). The logistic EuroSCORE algorithm was used to calculate the expected probability of death. A control group was selected, including a series of 300 consecutive diabetic patients (no protocol group, group NP) who underwent coronary artery bypass grafting between March 2001 and September 2002, just before the introduction of the protocol. A propensity analysis was performed to control for selection bias.
Results:
Both groups showed similar EuroSCORE risk profiles: mean additive and logistic EuroSCORE values were 4.16 and 4.29 in group P versus 3.93 and 3.91 in group NP. Observed and expected mortalities of group P were 0.6% versus 1.8% (low-moderate risk), 2.5% versus 8.0% (moderate-high risk, P = .03), and 1.3% versus 4.3% (entire group, P = .01). Observed and expected mortalities of group NP were 1.6% versus 1.9% (low-moderate risk), 8.3% versus 7.5% (moderate-high risk), and 4.0% versus 3.9% (entire group). Logistic regression confirmed observed mortality in group P to be significantly lower than the expected logistic EuroSCORE mortality. After risk adjustment, the protocol allowed us to reduce the mortality odds by 72% (odds ratio, 0.282; 95% confidence interval, 0.092-0.859; P < .03). Subgroup analysis for moderate- to high-risk patients showed the protocol to improve mortality (odds ratio, 0.24; P < .05), whereas no significant improvement was found in low- to moderate-risk patients. Addition of the propensity score to the multivariable analysis did not significantly displace P values and odds ratios. Sensitivity analysis of patients who underwent coronary artery bypass grafting without additional procedures showed the protocol to maintain its protective effect (odds ratio, 0.15; P < .05).
Conclusion:
Optimal glucose control highly reduces EuroSCORE expected mortality in diabetic patients undergoing myocardial revascularization, especially in moderate- to high-risk patients.
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