Ageing with HIV: next challenges
- Martin Fisher1
© Fisher; licensee BioMed Central Ltd. 2010
Published: 11 May 2010
With the advent of effective HAART and subsequent improved survival and also with ongoing HIV transmission including amongst older persons, the HIV positive population accessing care is ageing and a significant proportion of patients (up to 25% in some cohorts) are now aged over 50.
Older age has an effect on both HIV natural history and response to HAART. Older persons in the pre-HAART era progressed more rapidly to AIDS or death after seroconversion and AIDS diagnoses occurred at higher CD4 counts. Virological response to HAART is typically greater in older patients, likely mediated by greater levels of adherence, although immunological responses appear blunted. Some HAART toxicities occur at a higher frequency on older patients, although tolerance of adverse effects may be greater.
Additionally, it is increasingly suggested that HIV may result in accelerated ageing. This is thought to result from a combination of lifestyle factors, drug toxicities, and chronic inflammation/immune activation which persists even in the setting of virological suppression. Morbidities that were not historically considered to be HIV-related (e.g. cardiovascular disease, osteopaenia, "non-AIDS" malignancies) are now considered to be related to both ongoing HIV replication and chronic immune activation, and all are associated with increasing age.
It is therefore likely that HIV treatment recommendations (such as when to start HAART and what to start with) may need to be adapted for the older patient. Furthermore, older patients with HIV are likely to increasingly experience multiple co-morbidites which will require complex management and significant challenges to healthcare delivery.
This article is published under license to BioMed Central Ltd.