Alterations in body shape due to fat loss and/or redistribution have b
een described in HIV-infected individuals and associated with the use
of antiretroviral (ARV) combination therapy. Certain of these changes
have been referred to as peripheral lipodystrophy (LD) and we describe
12 patients who were recognized with this condition between September
1997 and February 1998. It occurred in 12.5% of patients on ARV combi
nation therapy that included a protease inhibitor (PI). In early descr
iptions the emphasis was on the abdomen, which may be grossly enlarged
. In our patients this feature was much less marked. Patients with LD
were significantly older than those on PI therapy who did not develop
this condition (P=0.016). Although all had raised triglyceride (TG) le
vels, the elevations were not severe (maximum=6.3 mmol/l). CD4 lymphoc
yte and viral load levels suggested an optimal response to ARV therapy
at the time LD developed. Appearances may be disfiguring but no serio
us systemic consequences of LD have been observed. Most individuals ha
ve chosen to remain on their present ARV combinations. When LD occurs,
it appears to be a marker of effective response to anti-MTV therapy.