Table 2.

Clinical characteristics of the patients.

Patient number	Presenting symptoms	Symptom duration	Vital signs at presentation			Electrocardiographic changes at presentations
			HR (beats/min)	NIBP (mmHg)	SpO2 (%)
01	Precordial/retrosternal pain radiating to the left shoulder	>12 h	64	118/76	90	ST elevation in LII, LIII, aVF
02	Precordial pain radiating to the left arm	02 h	124	118/76	88	ST elevation L1, aVL, V1–V3, ST depression in inferior leads
03	Retrosternal pain radiating to both shoulders, nausea, diaphoresis, and breathlessness	24 h	90	136/92	91	ST elevation in L1, aVL, V2–V5
04	Retrosternal pain radiating to both upper limbs, nausea, breathlessness, diaphoresis	4 h	86	132/90	90	ST elevation in V1–V4
05	Retrosternal pain radiating to both shoulders, nausea, diaphoresis, breathlessness	12 h	86	114/72	89	ST elevation in L1, aVL, V2–V5
06	Right-sided chest pain, breathlessness, and orthopnea	36 h	94	118/76	92	ST elevation and inverted T waves in L-II, III/aVF, and right ventricular leads V3–V4
07	Precordial pain and heaviness	4 days	76	130/78	90	WNL

HR, heart rate; NIBP, noninvasive blood pressure; SpO₂, oxygen saturation by pulse oximetry; V1, chest lead 1; V2, chest lead 2; V3, chest lead 3; V4, chest lead 4; V5, chest lead 5; V6, chest lead 6; L1, limb lead 1; LII, limb lead II; LIII, limb lead III; aVL, lead augmented vector left; aVF, lead augmented vector foot; aVR, lead augmented vector right; WNL, within normal limits.