Fistulas and fatal haemorrhages: what to do

In February 2010, I wrote Dialysis: death via a damaged fistula, which was about Maya’s father, who died when his sore and swollen fistula burst in bed and he bled to death.  At the time I asked some of the experts I knew about this and all said it happens, but was very rare.

However, over the following 18 months I had a steady flow of posts about other people who had died or came close to death from a leaking or haemorrhaging fistula, and it started to look a lot less rare.

In August 2011, I wrote: Dialysis, fistulas and fatal haemorrhages setting out some expert opinion on how to spot the danger signs and action to take to prevent a rupture.

Several people wrote back, saying how they had taken action and prevented their loved one’s fistula from rupturing.  But still, the horror stories keep coming, with more than 30 deaths and near misses posted over the last four years.

Most people posting were still unaware that ruptures could happen and had zero training on what to do if a rupture occurred.

This seems like pretty important information, which should be posted in every dialysis unit and office, everywhere.  So in an effort to get the word out, I have done more research on three areas:

• Just how common are fatal haemorrhages?
• The best way to avoid a rupture and
• What to do if one happens.

Until 2013, apart from the odd passing reference, not much had been written about fatal fistula ruptures.  Presumably most people assumed they were a rarity and not worth the effort.  Then Lynda K. Ball, MSN, RN, CNN, the Vascular Access Specialist for Fresenius Medical Care in Washington State published the excellent Fatal Vascular Access Hemorrhage: Reducing the Odds, in the Nephrology Nursing Journal, of the American Nephrology Nurses’ Association.

Though written for nurses rather than for the proud owners of fistulas, it is right on the money: “..how to recognise accesses (fistulas and grafts) at-risk for Fatal Vascular Access Hemorrhage (FVAH) and implement strategies to decrease FVAHs” (you know the problem has gone mainstream when it gets its own acronym).  For good measure, she also throws in the best technique for stopping the bleeding if the worst happens.  It’s a good read (though the pictures are a bit gruesome).

Here are some highlights.

Firstly, two FVAH factors listed in the paper jumped out from the page:

1. Fistula/access-related complications had occurred within six months prior to bleeding deaths.
2. In some states, up to 80 per cent of rupture deaths occurred at home.

We’ll come back to these factors shortly.

How common are fatal haemorrhages?

It seems that no one actually knows for sure, but they are more common than most people imagine.

In the US, End Stage Renal Disease Notification of Death CMS-2746 forms indicated that between the years 2000 and 2006 (the most recent national data available), there were 1654 fatal vascular access hemorrhages.  This represented about 0.4% of deaths of patients on hemodialysis.  However, these are only reported deaths and are considered an underestimate.

It could certainly be double that figure, say 0.8 per cent.  That seems a small number until you realise that there with about 500,000 people on dialysis in the US, 0.8% is 4,000 people.

FVAH deaths don’t seem to be tracked separately in most other countries.  This blog finds out about between five and ten a year from shocked relatives looking for answers, but it is by no means a definitive list.  Posts come from as far apart as the US, Estonia, New Zealand, India and 170-odd other countries around the world.

There does not seem to be a trend by country, rather it is much more local: it seems to depend on the quality of the unit.  In a well-run unit, fistula/graft haemorrhages really are rare.

Which brings us back to the two factors mentioned earlier.

The best way to avoid a rupture

Be fistula fussy

1. Fistula/access-related complications had occurred within six months prior to bleeding deaths.

Fistulas don’t weaken to a point where they haemorrhage overnight.  The fistula slowly becomes weak, fragile and weepy due to infection, stenosis (reducing blood flow and building pressure) or an aneurysm (the fistula wall balloons and becomes thin).  In other words, red and sore fistulas that are infected, blocked or have weak spots that fail to re-seal after needling are warning signs of impending rupture for both dialysis staff and us.

From the stories posted on this blog, in well-run units, fistula/graft haemorrhages are rare.  Staff check everyone’s fistula regularly and if they see a problem, they act: either with antibiotics and treatment, or a referral to a hospital or vascular surgeon, to examine and rebuild the fistula.

That doesn’t make it any less traumatic for the families when it happens, but mostly, unless you have some specific problems with your graft or fistula, it is not something to lose sleep over.  Most fistulas and grafts are solid and robust.  Fistulas grow slowly and are usually quite firm and elastic.

Be fistula fussy: if your fistula has any of these warning signs tell the unit staff and ask for medical attention.  Don’t take no for an answer.  If they are slow to act, tell them that you consider the problem life threatening.  Make sure they do something.  Tell your carers and get them to tell the staff.  Tell your doctor.  Make a fuss, but get it fixed.

What to do if a rupture happens

Finger press; arm lift

1. Approximately three-quarters of the deaths occurred at home, in assisted living, or nursing homes.

You cannot assume that medical care will always be at hand for emergencies.  If your fistula starts to bleed you need to know how to deal with it, even if just for a few minutes.

The easiest and safest way to control the bleeding is to:

• Immediately apply direct pressure over the site of bleeding with a single finger (or more if the rupture is bigger) and
• Raise the ruptured area of the bleeding above the level of your heart, to make it more difficult for the blood flow to reach the ruptured area due to gravity. (To see how effective this is, raise your fistula arm up above your head now – the blood will quickly drain away from your fistula.)

Do not take time to look for gauze or a tourniquet – these can hide the bleeding area and you may press on the wrong spot – put your fingers directly over the ruptured area and apply pressure immediately, then lift your arm.  Hold the pressure on the site for at least 10 minutes without peeking.

Once things are stabilised, call for medical help.

If someone is with you, they can call while you press on the site (or vice-versa).

 

Pass on this information: print out this or Lynda’s paper and put it on your unit’s noticeboard.  These strategies will help avoid fistula ruptures and save lives – yours and mine.