Predictive value of matrix metalloprotease 9 on surgical outcomes after pericardiectomy

Table 3 Postoperative outcomes of study patients stratified by the level of MMP9 in the constrictive pericardium

Variables	MMP9-low group (N = 11)	MMP9-high group (N = 11)	P value
Postoperative CVP, cmH₂O	17.0 (5.0–20.0)	17.8 (5.0–32.0)	0.365
Postoperative intubation, h	11 (3–132)	28 (5–232)	0.173
Duration of using vasoactive agents, h	0 (0–116)	47 (0–143)	0.114
Postoperative complications	1 (9.1%)	9 (81.8%)	0.002
Postoperative ICU stay, days	2 (1–5)	4.5 (1–10)	0.040
Postoperative hospital stay, days	18 (13–24)	23 (13–29)	0.043
In-hospital mortality	0 (0%)	1 (9.1%)	1.000

Values presented as median (range) for continuous variables and N (percentage) for categorical variables
MMP9-low was defined as the level of MMP9 < 3.67 and MMP9-high was defined as MMP9 ≥ 3.67
MMP, matrix metalloproteinase; CVP, central venous pressure; ICU, intensive care unit

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