Auditable guidelines can create pressure to
more consistently perform across a whole range of indicators. The meeting focused on three of these: testing
and treating for hepatitis co-infection, testing and treating TB co-infection,
and late presentation. Chloe Orkin, Chair of BHIVA, told the meeting: “An audit
isn’t a piece of research, it’s a process. It’s an evaluation of clinical
performance, not an outcome.” She introduced the BHIVA process whereby a
specific topic has been chosen for audit each year since 2001. A relatively
simple set of questions, based on BHIVA guidelines, and feasible for all HIV
clinics in the UK to answer is sent, which asks whether clinics offer specific
services and procedures – such as, for example, testing for viral hepatitis.
Then a review of case notes for ten to 40 patients per clinic is done to find
out if the clinic actually did these things in practice.
The task of deciding on auditable standards for
a region with as many health systems as countries is considerably more complex.
Anastasia Pharris of the European Centre for
Disease Control commented: “To say there is one model that will improve things
is challenging. We have many different models of care; even within countries
models differ between urban and rural settings and specialised and
non-specialised settings. PrEP and harm reduction, for instance, may be
delivered in many different ways. We need to be focusing on where we can get to
in Europe, rather than on how to get there.”
Alex Schneider of EATG warned against audit
benchmarks that were over-detailed or required doctors to ask for information
that patients might feel reluctant to give.
“People testing for HIV or returning for
treatment, if they are sexually active, should receive automatic STI tests,” he
commented. “In Germany this gets done, but in Switzerland you have to ask, and
also, because almost the whole country patient group is included in the Swiss HIV
Cohort, doctors are required to ask patients about sexual risk behaviour and
condom use. This is a potential disincentive for patients to come forward. We
must not let the requirements of research inadvertently introduce stigma.”
Manuel Battegay, ex-EACS President and current
chair of its guidelines committee, said the task of developing common standards
was complicated in Europe, owing to the multiple morbidities and co-infections
people might have. This was due to the ageing of the HIV-positive population,
with the result that treatment choices became more difficult for physician and
patient alike: it was no coincidence that in a recent study of how many other
specialists people with HIV might interact with, nephrologists – kidney
specialists most likely to be involved when drug interactions happen – were at
the top of the list.
The inability of clumsy, vertically organised
health services to deal with people with complex and varied needs is as much to
blame as stigma when it comes to the failure to provide treatment to those who
need it most. This failure cannot be allowed to continue,
Elena Vovc of the World Health Organization told the meeting. In central Asia,
2018 figures show that about three-quarters of people with HIV are diagnosed,
but only 42% start antiretroviral therapy (ART) and 27% are still on ART and virally suppressed a year
later.
The proportions are worse in people who inject
drugs: 27% start ART and 19% are virally suppressed – though this is better in
people receiving harm-reduction services, with 60% in care and 40% on
ART.
However, this is an improvement since a 2010 study which found
that less than 1% of people who inject drugs in the region had started ART
between 2004 and 2009. But it is clearly not enough and has allowed
co-infections to thrive: the proportion of people with TB who have co-infection with HIV grew from 3.7% in 2004 to 12% in 2017.
Despite relatively high rates of testing, late
diagnosis continued to be a factor too, with 50% of people with HIV in the
region diagnosed late, and 66% of people aged over 50.
Current EACS President Jürgen Rockstroh said
that guidelines could exert beneficial pressure to increase the use of specific
therapies to prevent or reduce co-infection. It was a scandal, for instance,
that TB prophylaxis with the drug isoniazid was taken by nearly a million
people in Africa (400,000 in South Africa alone), but only about 60,000 in the
whole of the rest of the world. In the Temprano study, isoniazid prophylaxis reduced mortality by nearly 40% even in people not taking ART, and 52% in people
taking it. TB prophylaxis is a measure that could easily be extended to, for
instance, prisoners with HIV in eastern Europe.
Another area where audited guidelines might
exert pressure was direct-acting antivirals (DAAs) for hepatitis C. Several
studies in western Europe have shown reductions in hepatitis C prevalence or
new infections when DAAs were used as widely as possible. A programme in
Iceland treating all injecting drug users has reduced prevalence in this
population from 43% to 12% in just two years. This was facilitated by it being
a small country with only one addiction centre, but similar reductions have
been achieved in Switzerland in men who have sex with men, where in 2016 147
chronic and 31 new hepatitis C infections were diagnosed in gay men but only a
year later 12 chronic and 16 new infections were seen. Similar reductions
have been seen in Spain, where 82% of people with HIV/hepatitis C co-infection have
taken DAAs.
Positive results like this can be used as
benchmarks in audits to encourage similar practice.