Sunday, 24 March 2013

Four kidneys and three pancreases

When we saw this headline, our initial thought was that someone had gone through a series of unsuccessful transplants, involving removal of a failed organ and replacement with a donor organ. We were wrong.

The article in the UK paper The Sun is about Carl Jones, aged 32. He has undergone several transplant operations, with a small difference. They left his original organs in place. So now he is living with four kidneys and three pancreases in his body. Carl had diabetes and spent a lot of time on a dialysis machine. He had his first kidney and pancreas transplant in 2004. Then in 2008 he had a second set implanted.

His diabetes has been cured, and he no longer goes through the regular dialysis treatment he endured for many years.

Friday, 8 March 2013

New risk factor for heart disease.

Kidney failure affects 25 million individuals in the U.S. and many, many more throughout the world. Loss of kidney function means the majority of these patients must undergo dialysis treatments to remove excess fluids and waste products. Although dialysis therapy coupled with medication has improved the life expectancy for people with kidney failure, for unknown reasons, patients' risk of sudden heart failure and death remains 10 to 20 times greater than average.

A new study helps explain why this may be the case. Appearing on-line in Science Translational Medicine, the new findings show that a process known as protein carbamylation contributes to heart disease risk among patients with kidney failure undergoing dialysis, and demonstrates that a blood test to measure carbamylated albumin protein can help clinicians better gauge the effectiveness of dialysis and identify patients at risk of cardiac complications. The findings additionally suggest the need for further investigation to determine if therapy with supplemental amino acids could help to prevent the carbamylation process.

The problem arises due to accumulation of urea in patients blood. Although urea is generally non-toxic, in some cases it can degrade into cyanate, a toxic chemical that binds to and permanently modifies proteins through a process known as carbamylation.

In two independent clinical experiments, the investigators demonstrated that increased carbamylated albumin is strongly associated with an elevated risk of premature death in patients on dialysis. They additionally found that increased carbamylated albumin in dialysis patients was linked with low blood concentrations of amino acids, the building blocks of proteins.

Reported in a Eureka press release

Thursday, 7 March 2013

Forget dialysis, get a transplant

According to a report in the Jamaican paper The Gleaner, doctors are suggesting that transplants are cheaper than dialysis, and thus the logical answer to keep health service costs down is to give the patient a transplant. The dialysis patient may require treatment for 20 - 30 or more years, and Professor Everard N. Barton, director of the Caribbean Institute of Nephrology based at the University of the West Indies, Mona, says transplants are far cheaper.

The suggestion is that transplants start to become cheaper overall after two and a half years compared to dialysis, and thus would reduce the strain on the health system. And reduce the long waiting list to get dialysis.

The public should be encouraged to take part in organ donation schemes, thus increasing the number of patients who could be considered for a transplant.

You can read the article in The Gleaner

Monday, 11 February 2013

Frequent dialysis poses risks for kidney disease patients

A soon to be published article in Journal of American Society of Nephrology, reported initial by Science Codex, it is stated that frequent dialysis poses problems for patients, requiring patients to undergo more repair procedures to the site through which blood is removed and returned.

Rita Suri, MD (Western University and Lawson Health Research Institute, in London, Canada) and her colleagues conducted two separate 12-month clinical trials in which they randomly assigned 245 patients to receive either in-center daily hemodialysis (6 days/week) or conventional hemodialysis (3 days/week) and 87 patients to receive either home nocturnal hemodialysis (6 nights/week) or conventional hemodialysis. Three access events were recorded: repair, loss, and access-related hospitalizations.

Among the major findings:

In the Daily Trial, 77 (31%) of 245 patients experienced one of these events, with the daily group having 33 repairs and 15 losses and the conventional group having 17 repairs, 11 losses, and 1 hospitalization.

Overall, the risk for an access event was 76% higher with daily hemodialysis compared with conventional hemodialysis.

Similar trends were seen in the Nocturnal Trial, although the results were not statistically significant.

"Our study is the first randomized trial to show that dialyzing more frequently may have potential harmful effects on the hemodialysis vascular access. This has important implications for patients and physicians considering or performing frequent hemodialysis," said Dr. Suri.

Saturday, 9 February 2013

Home-Made Dialysis Machine

I thought I was imagining things when I read this (it is in the UK's Daily Mail for a start, and that usually means unreliable. But here goes anyway.

The article claims that a Chinese man found dialysis at his local center was proving to be just too expensive. So he built his own dialysis machine. Yes, that's what it says. And it goes on to say that he has used it for 13 years so far. Hu, who suffers from kidney disease, made it from kitchen utensils and old medical instruments after he could no long afford hospital fees. He also makes his own dialysis fluid.

Liberally illustrated with images, it shows Hu Songweb connected to his device.

Although a Communist country, China does not have a cradle-to-grave free-at-the-point of use healthcare system.
Instead around half of the population buy basic medical insurance which covers for half the costs of their healthcare. The remainder is paid either by patients or their health insurer. However, this leaves the poorest in China struggling to meet medical bills for serious conditions.

He said two of his friends had died after building and using similar machines - hmmm, not much of a surprize there.

Now perhaps I'm being a bit cautious here, but I would NOT recommend anyone trying this themselves. No, seriously, don't try this.