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DIFFERENT CLINICAL OUTCOMES IN PATIENTS WITH ACUTE MYOCARDIAL INFARCTION BETWEEN WORKING DAY AND WEEKEND IN KOREA ACUTE MYOCARDIAL INFARCTION REGISTRY
E1777 JACC April 5, 2011 Volume 57, Issue 14
i2 SUMMIT DIFFERENT CLINICAL OUTCOMES IN PATIENTS WITH ACUTE MYOCARDIAL INFARCTION BETWEEN WORKING DAY AND WEEKEND IN KOREA ACUTE MYOCARDIAL INFARCTION REGISTRY i2 Poster Contributions Ernest N. Morial Convention Center, Hall F Sunday, April 03, 2011, 3:30 p.m.-4:45 p.m.
Session Title: PCI - Acute MI Abstract Category: 6. PCI - Acute MI Session-Poster Board Number: 2506-524 Authors: Seung hwan Hwang, Chonnam National University, Gwangju, South Korea Background: The clinical variables in patients with AMI admitted on working day versus weekend was not clearly verified in Korea. This study was aimed to evaluate the differences of proportion and clinical outcomes between patients with AMI admitted on working day and weekend. Methods: A total of 13,814 patients was enrolled in KAMIR from November 2005 to January 2008. Among those patients, 11,762 Patients divided into two groups: Group 1(working day, n=8693, 70.7% male, 63±76 years) and Group II(weekend, n=3069, 70.6% male, 62.73±12.73 years). For sub-analysis, working day was divided into working hour (AM 8:00~PM 6:00) and off hour (PM 6:00~AM 8:00). Clinical variables, in-hospital and 1 year mortality were compared with between the two groups. Results: Overall proportions were STEMI 58.1%, NSTEMI 37.3%. About 26% of patients were admitted during weekend. The proportion of patients with STEMI was higher on group 2 than group 1 (63.0% vs. 60.3%, p=0.004). The percentage of patients with NSTEMI was higher on group I compared with group II (39.7% vs. 37.0%, p=0.004). Patients with AMI more frequently admitted on working hour than off hour in group I. MaximalCK and CK-MB level were higher in group II than group I. Door-to-balloon time of patients with AMI was more shorter on working hour than off hour in group I. Primary PCI was more frequently used in patients with STEMI of group I than that of group II (77.3% vs. 70.7%, p<0.000) and working hour than off hour in group I (79.1% vs. 73.8%, p<0.000). Also early invasive treatment more frequently underwent in patient with NSTEMI on group I than group II (50.9% vs. 42.6%, p<0.000). Group II had significantly higher in-hospital death than group I (6.4% vs. 5.3%, p=0.011). In Cox proportional hazard analysis, one-year morality was more higher in group II than group I (11.2% vs. 1.0%, p=0.034)(hazard ratio=1.239 (95% CI [1.029~1.493]). Conclusions: A quarter of patients with AMI visited during weekend. Proportion of STEMI more higher during weekend than working day. Ratio of invasive procedure in MI was lower during weekend than working day. Short and long-term mortality was higher in AMI patients presented during weekend than working day.
i2 SUMMIT DIFFERENT CLINICAL OUTCOMES IN PATIENTS WITH ACUTE MYOCARDIAL INFARCTION BETWEEN WORKING DAY AND WEEKEND IN KOREA ACUTE MYOCARDIAL INFARCTION REGISTRY i2 Poster Contributions Ernest N. Morial Convention Center, Hall F Sunday, April 03, 2011, 3:30 p.m.-4:45 p.m.
Session Title: PCI - Acute MI Abstract Category: 6. PCI - Acute MI Session-Poster Board Number: 2506-524 Authors: Seung hwan Hwang, Chonnam National University, Gwangju, South Korea Background: The clinical variables in patients with AMI admitted on working day versus weekend was not clearly verified in Korea. This study was aimed to evaluate the differences of proportion and clinical outcomes between patients with AMI admitted on working day and weekend. Methods: A total of 13,814 patients was enrolled in KAMIR from November 2005 to January 2008. Among those patients, 11,762 Patients divided into two groups: Group 1(working day, n=8693, 70.7% male, 63±76 years) and Group II(weekend, n=3069, 70.6% male, 62.73±12.73 years). For sub-analysis, working day was divided into working hour (AM 8:00~PM 6:00) and off hour (PM 6:00~AM 8:00). Clinical variables, in-hospital and 1 year mortality were compared with between the two groups. Results: Overall proportions were STEMI 58.1%, NSTEMI 37.3%. About 26% of patients were admitted during weekend. The proportion of patients with STEMI was higher on group 2 than group 1 (63.0% vs. 60.3%, p=0.004). The percentage of patients with NSTEMI was higher on group I compared with group II (39.7% vs. 37.0%, p=0.004). Patients with AMI more frequently admitted on working hour than off hour in group I. MaximalCK and CK-MB level were higher in group II than group I. Door-to-balloon time of patients with AMI was more shorter on working hour than off hour in group I. Primary PCI was more frequently used in patients with STEMI of group I than that of group II (77.3% vs. 70.7%, p<0.000) and working hour than off hour in group I (79.1% vs. 73.8%, p<0.000). Also early invasive treatment more frequently underwent in patient with NSTEMI on group I than group II (50.9% vs. 42.6%, p<0.000). Group II had significantly higher in-hospital death than group I (6.4% vs. 5.3%, p=0.011). In Cox proportional hazard analysis, one-year morality was more higher in group II than group I (11.2% vs. 1.0%, p=0.034)(hazard ratio=1.239 (95% CI [1.029~1.493]). Conclusions: A quarter of patients with AMI visited during weekend. Proportion of STEMI more higher during weekend than working day. Ratio of invasive procedure in MI was lower during weekend than working day. Short and long-term mortality was higher in AMI patients presented during weekend than working day.