New Clinical Classification for Ventricular Free Wall Rupture following Acute Myocardial Infarction

Table 1

Baseline patient characteristics.

Variables	All FWR ()	Cardiac arrest type ()	Unstable type ()	Stable type ()
Age (years)	73.0 [67.5, 79.0]	73.0 [69.5, 79.0]	75.0 [59.0, 77.0]	55.5 [51.8, 63.5]
Female	43 (55.1)	37 (56.9)	3 (42.9)	3 (50.0)
Smoking	24 (30.8)	22 (33.8)	1 (14.3)	1 (16.7)
Alcohol	14 (17.9)	12 (18.5)	0 (0.0)	2 (33.3)
Prior hypertension	47 (60.3)	37 (56.9)	6 (85.7)	4 (66.7)
Prior diabetes	23 (29.5)	21 (32.3)	1 (14.3)	1 (16.7)
Prior MI	6 (7.7)	6 (9.2)	0 (0.0)	0 (0.0)
Anterior MI	51 (65.4)	40 (61.5)	6 (85.7)	5 (83.3)
Time from onset to admission (hours)	6.0 [3.0, 11.3]	6.0 [3.0, 12.5]	10.0 [2.0, 12.0]	4.0 [1.8, 6.0]
SBP (mm hg)	115.0 [103.0, 126.5]	120.0 [105.0, 130.0]	105.0 [95.0, 110.0]	115.0 [90.5, 125.3]
Heart rate (bpm)	79.5 [65.0, 92.3]	78.5 [63.3, 91.3]	80.0 [70.0, 110.0]	76.5 [61.5, 99.3]
Killip class III or IV	18 (23.1)	16 (24.6)	1 (14.3)	1 (16.7)
WBC (1,000/mm^3)
Hemoglobin (g/L)	133.0 [121.0, 140.0]	132.0 [124.0, 139.0]	137.0 [112.0, 153.0]	136.0 [117.0, 151.3]
Platelet count (1,000/mm^3)	211.5 [170.0, 248.5]	215.0 [170.0, 251.0]	218.0 [182.0, 247.0]	172.5 [144.5, 227.0]
Aspirin+thienopyridine	72 (92.3)	61 (93.8)	5 (71.4)	6 (100.0)
Anticoagulants	71 (91.0)	60 (92.3)	5 (71.4)	6 (100.0)
ACEI/ARB	24 (30.8)	20 (30.8)	1 (14.3)	3 (50.0)
β-Blockers	41 (52.6)	33 (50.8)	3 (42.9)	5 (83.3)
Statin	65 (83.3)	56 (86.2)	4 (57.1)	5 (83.3)
Primary PCI	19 (24.3)	12 (18.5)	3 (42.9)	4 (66.7)
Thrombolysis	6 (7.7)	5 (7.7)	0 (0.0)	1 (16.7)

Data given as (%), , or median (IQR). ACEI: angiotensin-converting enzyme inhibitor; ARB: angiotensin receptor blocker; IQR: interquartile range; MI: myocardial infarction; PCI: percutaneous coronary intervention; SD: standard deviation; SBP: systolic blood pressure; WBC: white blood cell counts.