Table 3 Transit-time flowmetry parameters before and after administration of protamine: single grafts with pre- and post-protamine TTFM with ACI > 30 (both pre- and post-protamine) and same MAP range (for each graft)
From: Transit time flow measurement of coronary bypass grafts before and after protamine administration
N all grafts | N arterial grafts | N venous grafts | All | Arterial grafts | Venous grafts | |||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|
Pre-protamine | Post-protamine | p value | Pre-protamine | Post-protamine | p value | Pre-protamine | Post-protamine | p value | ||||
MGF | 559 | 318 | 241 | 29 (17–44) | 30 (18–48) | 0.009 | 28 (17–43) | 28 (17–44) | 0.44 | 30 (18–46) | 32 (20–52) | 0.001 |
PI | 559 | 318 | 241 | 2.3 (1.8–3.2) | 2.2 (1.7–2.9) | < 0.001 | 2.2 (1.8–3.0) | 2.2 (1.7–2.9) | 0.02 | 2.4 (1.7–3.5) | 2.1 (1.6–2.9) | < 0.001 |
DF | 489 | 289 | 200 | 68 (60–73) | 66 (58–73) | < 0.001 | 71 (65–76) | 70 (63–75) | < 0.001 | 61 (56–69) | 60 (54–66) | 0.18 |
BF | 552 | 315 | 237 | 0.8 (0–3.0) | 0.9 (0–3.0) | 0.81 | 0.9 (0–3.9) | 1.1 (0.2–3.7) | 0.78 | 0.4 (0–2.3) | 0.5 (0–2.2) | 0.96 |