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Table 2 Summary of the characteristics of the included studies

From: Coronary collaterals and risk for restenosis after percutaneous coronary interventions: a meta-analysis

Lead author

Year

CCC assessment

Setting

Follow-up (months)

PCI type

Male (%)

Age (years)

Probst

1991

Visually

Elective

4 to 7

POBA 100%

79

51

Nakae

1996

Visually

Acute MI

Mean 5.7

POBA 100%

75

62

Wahl

2000

CFI

Elective

Mean 17

BMS 43%

74

60.5

Lee

2002

CFI

Acute MI

6

BMS 74.3%

73

57

Antoniucci

2002

Visually

Acute MI

6

BMS 64%

78

64

Perera

2006

CFI

Elective

6

BMS 100%

80

60

Jensen

2007

CFI

Elective

9

BMS 100%

75

61

  1. BMS, bare metal stents; CCC, coronary collateral circulation; CFI, collateral flow index (intracoronary wedge-pressure derived collateral assessment); PCI, percutaneous coronary intervention; POBA, plain balloon angioplasty; Visually, collateral assessment with Rentrop scoring system.