Prophylaxis, or the practice of routine replacement infusions of clotting f
actor concentrate in persons with severe haemophilia, is a demanding medica
l regimen. Prophylactic infusions require direct venepuncture or sterile en
try into a central venous access device on a regular basis. A telephone sur
vey was conducted to elicit information regarding the barriers to complianc
e with prophylaxis. The Mountain States Regional Haemophilia and Thrombosis
Center has recommended prophylaxis to 52 male patients with haemophilia A
or B. The haemophilia nurse attempted to contact all of these patients or t
heir parents, and contact was made with 38 (73.1%) of them. Respondents wer
e asked about the following issues: their decision to initiate prophylaxis;
their self-rated compliance; the challenges, barriers, and facilitators of
prophylaxis; and their perceived value of the therapy. Four patients (10.5
%) elected not to begin prophylaxis. Of the 34 persons who began prophylaxi
s, 20 respondents (58.8%) rated their compliance as excellent. Nearly one-t
hird of the families with excellent compliance (giving 75-100% of prescribe
d infusions) stated that the time-consuming nature of prophylaxis was the m
ost significant challenge of the regimen. In addition, 58.3% of the familie
s that gave less than the prescribed number of infusions reported that the
time commitment was the primary reason for missing infusions. Knowledge of
the benefits of prophylaxis was the primary facilitator of compliance for 4
4.1% of families. Ninety-seven percent of respondents rated prophylaxis as
very valuable. These data show that despite the known benefits of prophylax
is, it is a demanding medical regimen, and compliance is imperfect. In addi
tion, this study underscores the importance of providing continuing support
and education for patients and families who are implementing prophylaxis.