Higher Frequency of Undetected Acute Coronary Syndrome in Elderly Patients with Chest Pain Who Visited the Emergency Department: A Large-Cohort Retrospective Study

Table 4

Summary of diagnostic evaluation results of patients with undetected ACS.

Reasons for revisit	Age/sex	Index visit		Revisit		CAG
		ECG	Cardiac enzyme	ECG	Cardiac enzyme
Adults
Discharged against medical advice ()	42/M	Normal	Elevated	Nonspecific ST change	Borderline	mLAD: 40% stenosis
	47/M	Nonspecific ST change	Borderline	Nonspecific ST change	Elevated	pLCX: chronic total occlusion, dRCA: thrombotic occlusion
	62/M	Normal	Normal	Normal	Normal	mRCA: 90% stenosis
	50/M	Normal	Normal	Unchecked	Unchecked	Unchecked
Recurrent symptom ()	42/M	Normal	Normal	ST elevation	Elevated	mLAD: spasm
	61/M	RBBB	Normal	ST depression	Elevated	LAD: 90% stenosis
	52/M	Normal	Normal	Normal	Elevated	pLCX: 70-80% stenosis
	45/M	Normal	Normal	Normal	Normal	mLAD and mRCA: 20% stenosis
	57/M	Normal	Normal	Normal	Normal	mLAD: total occlusion
	61/M	Normal	Normal	Normal	Normal	p-dLCX: 80% stenosis, mLAD: 60% stenosis
	63/M	Normal	Normal	Normal	Normal	pLAD and mLCX: spasm
	39; 53; 54/F, 58; 63/M	Normal	Normal	Normal	Normal	Unchecked
	54/M	Normal	Unchecked	Normal	Normal	Normal
Different symptom ()	47/M	Normal	Normal	Normal	Normal	Normal
Elderly
Discharged against medical advice ()	76/F	Nonspecific ST change	Elevated	Nonspecific ST change	Elevated	mLAD: 70% stenosis, pLCX: 40% stenosis, pRCA total occlusion
	77/M	Normal	Normal	Unchecked	Unchecked	mLAD: 90% stenosis
Suboptimal management ()	70/F	Normal	Borderline	Normal	Normal	Normal
	76/M	Normal	Borderline	ST depression	Borderline	pRCA: 80% stenosis
	82/F	Normal	Borderline	T inversion	Borderline	Unchecked
	84/F	RBBB	Borderline	RBBB	Borderline	Unchecked
Recurrent symptom ()	67/F	ST depression	Normal	ST depression	Elevated	pLAD: chronic total occlusion, p-dLCX: 90% stenosis, mRCA: 90% stenosis, dRCA: 80% stenosis
	70/M	Normal	Normal	Nonspecific ST change	Normal	mLAD: 95% stenosis
	76/F	Normal	Normal	Nonspecific ST change	Normal	mLAD: 50% stenosis
	82/M	Normal	Normal	Nonspecific ST change	Normal	dLAD: 50% stenosis, LCX: 40% stenosis, pRCA: 35% stenosis
	65; 80/M, 85/F	Normal	Normal	Normal	Normal	mLCX: 40% stenosis
	80/M	Normal	Normal	Normal	Normal	mLAD and mRCA: 20% stenosis
	85/F	Normal	Normal	Normal	Normal	pLAD: 70% stenosis
	66/M, 67/F	Normal	Normal	Normal	Normal	Unchecked
Different symptom ()	84/F	Normal	Normal	Nonspecific ST change	Elevated	Unchecked

Death in intensive care unit; general ward admission at index visit. ACS: acute coronary syndrome; CAG: coronary angiography; ECG: electrocardiogram; RBBB: right bundle branch block; LAD: left anterior descending coronary artery; LCX: left circumflex coronary artery; RCA: right coronary artery; m: middle; p: proximal; d: distal.