DXA In People Living With HIV

Abstract

Abstract Background As people with HIV now live a near normal life-span, prevention of fractures is increasingly important. Alongside conventional risk factors for fractures, antiretrovirals and chronic inflammation are believed to contribute to their increased fracture risk compared to the general population. Methods We audited a 1-year series of consecutive DXA scans conducted on people living with HIV vs the European AIDS Clinical Society guidelines on bone health. These guidelines specify indications for DXA, for repeat DXA and for osteoporosis treatment. We recorded DXA results, any prior DXA, fracture history, fracture risks and drug treatment history. We assessed frequency of scanning and pharmacological management of low bone mass vs. guidelines. Results N=90 referred for DXA, of whom 18% did not attend, leaving n=74; 58% female, 42% male, median age 52 years [36-64] and 56 years [49-69] respectively. Of the 18% (n=14) who were aged under 50, 43% had no clear indication (fracture risk factor) for DXA. Of those aged >50 years (n=60), all scans were indicated as the guidelines advises this in those aged >50 years. Bone density was normal in n=32 (43%), osteopenic in 36 (49%) and osteoporotic in 7 (9%). Fifteen percent overall had a fragility fracture history, none of whom were taking osteoporosis treatment though it was indicated in at least 4 based on their DXA result. N=12 (16%) had a DXA in preceding years, and just 2 of the repeat scans were indicated according to guidelines. For the 12 with serial scans, there was no significant change in T score after a median three-year period. Conclusion Through an audit of consecutive DXA referrals, rather than consecutive individuals, low bone mass and fragility fractures are prevalent in people living with HIV. With advancing age, fracture incidence may rise sizeable in this group therefore due attention to bone health guidelines in required.