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. 2021 Oct 10;16:293. doi: 10.1186/s13019-021-01677-7

Table 6.

The results of meta-analysis of postoperative outcomes (ViMAC vs ViR)

Outcomes Studies Effect measure Model Participants Effect estimate LCI UCI Q P(Q) Z P(Z)
All-cause Mortality within 30 days 4 Odds ratio Fixed 470 3.20 1.89 5.43 3.27 0.35 4.32 < 0.01
 Cardiovascular 2 Odds ratio Fixed 244 1.96 0.78 4.96 0.38 0.54 1.43 0.15
 Noncardiovascular 2 Odds ratio Fixed 244 2.01 0.70 5.80 0.01 0.91 1.29 0.20
 Unknown-cause 2 odds ratio Fixed 226 4.94 2.33 10.46 0.07 0.79 4.17 < 0.01
Bleeding 4 Odds ratio Random 489 0.62 0.17 2.17 9.72 0.02 0.75 0.45
 Minor 1 Odds ratio Fixed 40 2.36 0.11 52.88 0.00 1.00 0.54 0.59
 Major or extensive bleeding 4 Odds ratio Fixed 489 1.20 0.43 3.35 1.22 0.75 0.35 0.73
 Life-threatening or fatal 3 Odds ratio Fixed 462 0.76 0.36 1.60 0.44 0.80 0.73 0.46
Embolization 4 Odds ratio Fixed 489 1.92 0.71 5.19 2.46 0.48 1.29 0.20
Conversion to Cardiac surgery 3 Odds ratio Fixed 449 1.38 0.54 3.53 3.02 0.22 0.67 0.51
Left ventricular outflow tract obstruction 4 Odds ratio Random 489 3.02 0.82 11.05 10.14 0.02 1.67 0.10
Stroke 3 Odds ratio Fixed 462 5.16 1.14 23.38 1.88 0.39 2.13 0.03
Post-procedural echocardiographic findings
 LVEF (%) 2 Mean difference Fixed 226 13.64 10.02 17.26 0.00 0.95 7.39 < 0.01
 Mitral valve mean gradient (mmHg) 2 Mean difference Fixed 226 − 1.54 − 2.38 − 0.71 1.14 0.28 3.62 < 0.01
 Right ventricular systolic pressure (mmHg) 1 Mean difference Fixed 27 − 1.00 − 13.57 11.57 0.00 1.00 0.16 0.88
 MVA, mitral valve area (cm2) 2 Mean difference Fixed 226 0.65 0.36 0.93 1.01 0.31 4.45 < 0.01
 Vascular complication 3 Odds ratio Fixed 462 1.31 0.54 3.16 1.05 0.59 0.60 0.55
 Acute kidney injury 2 Odds ratio Fixed 239 1.35 0.53 3.44 0.00 1.00 0.63 0.53
 Need for second valve implantation 3 Odds ratio Random 449 1.06 0.34 3.31 4.41 0.11 0.09 0.92
Postprocedural mitral regurgitation
 Trace/none 1 Odds ratio Fixed 223 1.16 0.69 1.98 0.00 1.00 0.56 0.57
 1 (+) 1 Odds ratio Fixed 223 1.01 0.58 1.75 0.00 1.00 0.04 0.97
 2 (+) or greater 1 Odds ratio Fixed 223 0.82 0.13 4.98 0.00 1.00 0.22 0.83