Lodge 2005.
Methods | Randomised clinical trial | |
Participants | Country: European multicentre trial
Number randomised: 204
Postrandomisation dropouts: 19 (9.3%)
Revised sample size: 185
Average age: 57 years
Women: 92 (49.7%)
Number of cirrhotics: 0 (0%)
Number of major liver resections: not stated
Number of right hepatectomies: not stated
Follow‐up (months): until discharge
Further details of methods of liver resection
Inclusion criteria
Exclusion criteria
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Interventions | Participants were randomly assigned to 2 groups. Group 1: recombinant factor viia (n = 126) Group 2: control (n = 59) Recombinant factor VIIa: first dose: slow intravenous injection (20 mcg/kg or 80 mcg/kg) within 5 min before incision. Second dose: identical dose was given 5 h after incision if the surgery time was anticipated to exceed 6 h Control: placebo | |
Outcomes | The outcomes reported were: short‐term mortality, long‐term mortality, proportion of people with serious adverse events, number of serious adverse events, number of adverse events, operative blood loss, proportion of people requiring blood transfusion, quantity of blood transfused (red cell transfusion or whole blood), and operating time. | |
Notes | Reasons for postrandomisation dropouts: did not receive drug (n = 4); did not undergo hepatectomy (n = 15) | |
Risk of bias | ||
Bias | Authors' judgement | Support for judgement |
Random sequence generation (selection bias) | Low risk | Quote: "Randomization was computer‐generated and was performed after patient eligibility assessments on the day of surgery by means of a central interactive voice response system set up by Novo Nordisk A/S". |
Allocation concealment (selection bias) | Low risk | Quote: "Randomization was computer‐generated and was performed after patient eligibility assessments on the day of surgery by means of a central interactive voice response system set up by Novo Nordisk A/S". |
Blinding of participants and personnel (performance bias) All outcomes | Low risk | Quote: "The current randomized, controlled, double‐blind, multi‐national trial was designed to evaluate the efficacy and safety of rFVIIa in noncirrhotic patients undergoing major liver resection. To maintain blinding, an equal volume of trial drug per body weight was administered to all patients, irrespective of treatment group allocation". |
Blinding of outcome assessment (detection bias) All outcomes | Low risk | Quote: "The current randomized, controlled, double‐blind, multi‐national trial was designed to evaluate the efficacy and safety of rFVIIa in noncirrhotic patients undergoing major liver resection. To maintain blinding, an equal volume of trial drug per body weight was administered to all patients, irrespective of treatment group allocation". |
Incomplete outcome data (attrition bias) All outcomes | High risk | Comment: there were postrandomisation dropouts. |
Selective reporting (reporting bias) | Low risk | Comment: mortality and morbidity were reported. |
Vested interest bias | High risk | Quote: "The authors thank the patients and the hospital staff participating in the trial, as well as Allan Blemings, M.Sc. (Statistician), and Karsten Soendergaard, M.Sc. (Clinical Researcher), both at Novo Nordisk A/S, Copenhagen, Denmark". |
Other bias | Low risk | Comment: no other bias |