M. Pinder et al., CRITICAL CARE RESEARCH AND PREEMPTIVE INFORMED CONSENT - A PRACTICAL APPROACH USED IN CHRIS-HANI-BARAGWANATH-ICU, Intensive care medicine, 24(4), 1998, pp. 353-357
Objectives: 1) To establish a protocol within international and local
ethical guidelines to obtain in formed consent for critical care resea
rch, overcoming constraints previously described and 2) To evaluate ev
entual recruitment using this protocol. Design: Prospective descriptiv
e study. Setting: Multidisciplinary ICU in a community-based universit
y teaching hospital. Patients and participants: Following approval by
the University Ethics Committee and Hospital Review Board, patients ad
mitted between January and May 1996 were assessed on weekdays for pote
ntial enrolment into existing clinical trials. Discussion with potenti
al candidates and/or next-of-kin occurred at the earliest opportunity
and informed consent was obtained preemptively. Next-of-kin was notifi
ed if enrolment subsequently occurred. We evaluated the number of pati
ents screened, the number of potential study candidates, the number fo
r whom consent was obtained or refused and the number subsequently enr
olled. Interventions: None. Results: Of 249 patients screened, 149 (60
%) did not meet the inclusion criteria. Of 100 potential study candida
tes (40% of all patients screened), we failed to make contact with the
next-of-kin in 29 cases (12% of all patients screened). Thus 71 patie
nts or next-of-kin were counselled (28% of all patients screened). In
all, 30 patients (12% of all patients screened) were subsequently enro
lled into a study. Conclusions: A policy of pre-emptive informed conse
nt enabled us to overcome some of the problems previously experienced
in our unit with regards to patient enrolment in critical care researc
h. Although overall recruitment remained low, predictions for future e
nrolment can be made from this study.