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Table 2 Characteristics and data of the included studies

From: Control angiography for perioperative myocardial Ischemia after coronary surgery: meta-analysis

Author Year Country Type of study Study period NHLBI quality rating No. of control angiography Negative findings at angiography (%) Graft failure at angiography (%) Repeat revascularization (%) Repeat CABG (%) PCI (%) Early mortality (%)
Rasmussen 1997 Denmark P 1990-1995 Fair 59 27.1 72.9 45.8 45.8 0.0 5.1
Fabricius 2001 Germany R 1999 Fair 108 41.7 58.3 39.8 31.5 8.3 9.3
Thielmann 2006 Germany P 1999-2006 Fair 118 43.2 56.8 33.9 12.7 21.2 8.5
Karhunen 2010 Finland R 2000-2007 Fair 23 47.8 52.2 43.5 21.7 21.7 8.7
Laflamme 2012 Canada R 2003-2009 Fair 39 17.9 82.1 48.7 10.3 38.5 7.7
Szavits-Nossan 2012 Croatia R 1999-2009 Fair 55 21.8 65.5 69.1 14.5 54.5 23.6
Davierwala 2013 Germany P 2004-2010 Fair 399 36.1 61.2 41.1 32.6 8.5 7.3
Hultgren 2016 Sweden R 2007-2012 Fair 87 31.0 59.8 44.8 28.7 16.1 11.5
Preußer 2017 Germany R 2006-2013 Fair 168 23.2 52.4 53.6 17.9 35.7 10.7
  1. R retrospective study, P prospective study, NHLBI National Heart, Lung, and Blood Institute, CABG coronary artery bypass grafting, PCI percutaneous coronary intervention