Comparison of outcomes in emergency department patients with suspected cardiac chest pain: two-centre prospective observational study in Southern China

• Published in: BMC cardiovascular disorders 2018-05, Vol.18 (1), p.95-95, Article 95
• Main Authors: Jiang, Huilin, Li, Yunmei, Mo, Junrong, Chen, Xiaohui, Li, Min, Lin, Peiyi, Hung, Kevin K C, Rainer, Timothy H, Graham, Colin A
• Format: Article
• Language: English
• Subjects: Acute coronary syndrome; Aged; Aged, 80 and over; Angina Pectoris - blood; Angina Pectoris - diagnosis; Angina Pectoris - mortality; Angina Pectoris - physiopathology; Biomarkers - blood; Blood Pressure; Cardiology Service, Hospital; Chest pain; Comorbidity; Creatinine - blood; Diagnosis; Emergency department; Emergency Service, Hospital; Female; Guangzhou; Health aspects; Health Status Disparities; Healthcare Disparities; Heart Rate; Hong Kong; Hong Kong - epidemiology; Hospital patients; Humans; Male; Middle Aged; Predictive Value of Tests; Prognosis; Prospective Studies; Risk Assessment; Risk Factors; Risk stratification; Time Factors
• ISSN: 1471-2261; 1471-2261
• DOI: 10.1186/s12872-018-0814-4

Hong Kong (HK) and Guangzhou (GZ) are cities in China with different healthcare systems. This study aimed to compare 30-day and 6-month mortality and characteristics of patients with suspected cardiac chest pain admitted to two emergency departments (ED) in HK and GZ. A prospective observational study enrolled patients with suspected cardiac chest pain presenting to EDs in the Prince of Wales Hospital (PWH), HK and the Second Affiliated Hospital of Guangzhou Medical University (AHGZMU),GZ. The primary outcome was 30-day and 6-month mortality. In total, 996 patients were recruited, 407 cases from GZ and 589 cases from HK.The 30-day and 6-month mortality of chest patients were 3.7% and 4.7% in GZand 0.3% and 1.9% in HK, respectively. Serum creatinine level (Cr) was an independent factor for 30-day mortality whilst Cr and systolic blood pressure (SBP) were independent factors for 6-month mortality. In Cox regression analysis, unadjusted and adjusted hazard ratios for 30-day and 6-month mortality in GZ were significantly increased. The 30-day and 6-month mortality of patients with suspected cardiac chest pain in Guangzhou were higher than in Hong Kong due to due to different baseline clinical characteristics of patients and different distributions of diagnoses, which were associated with different healthcare systems. Serum creatinine and SBP were independent factors for 30-day and 6-month mortality.