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 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 WHO told the meeting. In central Asia,
2018 figures show that about three-quarters of people with HIV are diagnosed,
but only 42% start 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
are co-infected 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 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.