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Page 7 of 10  Original Research


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              status strongly associated with mortality.  The presence of   cardiovascular and cancer morbidity and mortality in
              anaemia and poor nutritional status are interconnected,   OPLWH. 8
              and in this cohort the presence of anaemia was associated
              with the risk of dying. Unfortunately, height and thus body   The VL suppression in this cohort was lower than
              mass index (BMI) and/or mid-upper arm circumference   previously reported in SA. 9,10,16  Moreover, VL suppression
              (MUAC) measurements were not routinely measured in    was attained in 86% – 89.5% of older adults in other settings
              the care of this study’s participants.  Haemoglobin  levels   after 12–60 months of treatment. It was perturbing that
              were also not readily available for this cohort. The weight   only 81.9% of this cohort had a suppressed VL, especially
              (median and IQR) nevertheless correlated well with that of   as a larger proportion of them were on second-line
              participants in another South African study.  Nutritional   treatment than found in another South  African cohort
                                                   9
              status is one of the components that needs to be assessed in   (5.2% versus 0.88) ; and female participants, who are
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              a comprehensive geriatric assessment (CGA). This tool   historically more adherent to treatment, had lower VL
              includes 11 components that address biomedical, social   suppression rates. Only 5.2% of the cohort were on second-
              and economic concerns for HIV care providers relating to   line ART. The rest were still on a NNRTI-based regimen.
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              OPLWH.  Recent hospitalisation is a known risk factor for   Moreover, over 85% of those with an unsuppressed VL
              dying in OPLWH, and this was echoed in this study.  A   were still on an NNRTI-based regimen. HIV treatment and
              meta-analysis showed that those who underwent a CGA   monitoring guidelines in SA have changed since this study
              whilst hospitalised were more likely to be alive after 12   was conducted. The new guidelines define a suppressed
              months than those who did not.  An explanation for this   VL as < 50 copies/ml. If these criteria were used to assess
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              may be that the teams who performed CGA were more     VL suppression, only 59% of this cohort would be
              experienced and specialised than the teams who typically   suppressed. Although high-range low-level viraemia (VL
              worked on the wards. Long-term follow-up also appeared   400 copies/mL – 999 copies/mL) in this cohort  was low
              to be more comprehensive in the participants who      (8.4%), a previous study performed in SA showed a five-
              underwent CGA in the hospital setting. This is a novel tool   times increased risk of virological failure in  participants
              in HIV care; it has been used successfully in other   who had VL readings in this range.  It is imperative to
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              disciplines and may prove to be a crucial tool in the HIV   monitor these patients closely and act appropriately if and
              care sphere pertaining to the ageing population in years to   when true virological failure (VL ≥ 1000 copies/mL) and
              come.  Hence, there are ample reasons for incorporating   attenuated CD4 cells count responses develop. Appropriate
                   26
              anthropometric measures, including those related to   action, that is changing to a second-line  ART regimen,
              nutritional status and anaemia, into the clinical guide for   seemed  to  be  lacking  in  this  cohort.  There  was,  likely,
              the care of OPLWH. However, clinicians in better resourced
              settings are struggling to adhere to CGA recommendations    treatment failure and the development of resistance to ART
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              and its rollout to resource-constrained settings may come   in this cohort. This may hamper the 90–90–90 UNAIDS
              with challenges, such as lack of experience with the tool,   target of achieving a 90% VL suppression rate in all age
              time and resource limitations and insufficient evidence for   groups globally by 2030. South Africa currently stands at
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              its effectiveness in African settings.                87% VL suppression in 54% of all PLWH. More attention
                                                                    should be given to OPLWH in order to attain the UNAIDS
              Even in this reasonably small cohort, the prevalence of HPT   goals and ensure their overall well-being and prevent the
              and DM were high compared with other studies. 9,17  In these   spread of drug-resistant HIV.
              studies, the prevalence of HPT ranged from 21.5% – 33.3%,
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              the latter percentage being for participants aged ≥ 70 years.   Malaza et al.   found that the median CD4 cell count in
                                                                                           3
              In our study population, there were 55.5% of OPLWH on   OPLWH was 367 cells/mm after a median duration of
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              treatment for HPT. The differences may be due to the other   2.3 years on ART. Similarly, Fatti et al.  found that OPLWH
                                                                                                         3
              studies actively measuring participants’ blood pressure at   had a median CD4 cell count of 377 cells/mm after 3 years
              ART initiation, whereas the current study relied on clinical   on  ART. The median CD4 cell count increased by
                                                                                3
              records and could not account for what might have come   256.5 cells/mm from the baseline in this cohort. Fatti et al. 16
              first: HIV or HPT. The same could be said about DM, where   also found that the median CD4 cell count increased from
                                                                                    3
              the prevalence ranged from 2.2% – 6.3% in the other cohorts,   about 100 cells/mm after 6 months to over 300 cells/mm 3
              compared to 7.9% in the current cohort. Again, conclusive   after 48 months, since ART initiation. It is well-established
              interpretation of these results is elusive because the current   that CD4 cell recovery is attenuated in OPLWH compared to
              study inception was not at  ART initiation. It is well   younger PLWH. 16,30  In this study, it was evident that higher
              established that  ART and ageing both accelerate      recent CD4 cell counts were more likely in those who had
              cardiovascular disease risk in older adults. Added to the   been taking ART for > 5 years (OR = 3.15, 95% CI 1.34–7.40,
                                                  8
              cardiovascular disease burden of HPT, DM and CKD, it   p = 0.009) and those on the usual first-line ART (OR = 2.78,
              stands to reason that older adults require tailor-made   95% CI 1.04–7.42, p = 0.041). The former may have been an
              interventions to address their cardiovascular health. The   obvious finding because of improved immune reconstitution,
              administration of a novel polypill (including a statin, aspirin   the sooner a patient is initiated on ART,  but further work
                                                                                                     8
              and anti-HPT medications) is a potential option to reduce   may be needed to evaluate the latter.

                                           http://www.sajhivmed.org.za 271  Open Access
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