Alternative sedative reduces the risk of acute kidney injury following cardiac surgery
The sedative drug dexmedetomidine can reduce the risk of acute kidney injury when given during non-emergency cardiac surgery. Trial participants who received dexmedetomidine were a third less likely to develop acute kidney injury than those receiving placebo or other treatments. There was no difference in mortality or length of hospital stay.
This systematic review identified 10 studies of 1,575 participants. Surgical procedures included coronary artery bypass grafting with or without valve sur...
Balanced electrolyte solutions give marginal benefit over saline for very ill patients
About 14% of critically ill patients receiving electrolyte-balanced crystalloids either developed kidney failure, needed kidney-replacement therapy or died compared with 15% receiving normal saline. This small but statistically significant benefit was only apparent when combining outcomes; there was no difference between fluids for the three individual outcomes analysed separately.
A solution of 0.9% sodium chloride (normal saline) is the most commonly used intravenous (IV) fluid, but it can ca...
Single routine offer of a blood test for prostate cancer did not save lives
Offering all men aged 50 to 69 a single, screening prostate-specific antigen (PSA) blood test did not prevent deaths from prostate cancer.
This large trial included 573 UK general practices and over 400,000 men. It found that men who were invited to have a PSA test were 19% more likely to be diagnosed with prostate cancer, but no less likely to die from the condition, over an average 10 years of follow up. Forty per cent of men took up the offer.
Controversy over PSA testing has persisted for ...
Prescribing anti-inflammatories for urine infection reduces antibiotic use but increases complication risk
Urinary tract infection symptoms resolved by three days for 80% of women given antibiotics compared with 54% given anti-inflammatories. Anti-inflammatories reduced antibiotic use, but 5% of women developed more severe infection of the kidneys.
Urinary infections are the second most common reason for prescribing antibiotics in general practice, after respiratory infection. As such, this use may be contributing to increasing antibiotic resistance.
This Swiss trial provided an important head-to-h...
Living kidney donors have only a very small increased risk of kidney failure and pre-eclampsia
Healthy kidney donors, of both sexes, have no extra risk of death or other major chronic diseases amongst donors up to 15 years after donation, except for a small increase in risk of end-stage renal disease. One in 2,000 people per year will develop kidney failure following donation of a kidney compared to one in 10,000 among non-donors. Of donors who become pregnant, three extra in 100 women will have pre-eclampsia.
This part NIHR-funded systematic review and meta-analysis included 52 studies....
Gout medication may slow progression of chronic kidney disease
In people with existing kidney disease, one in four will have worse disease within six to 12 months. Uric acid-lowering drugs such as allopurinol halve the risk of disease progression over this period. They also reduce heart attack or stroke by 60%.
Uric acid, the cause of gout, is produced when proteins are broken down by the body. It is excreted by the kidneys and often builds up in people with chronic kidney disease. It is not certain whether increased uric acid causes progression of kidney ...
Single urine samples are just as good as 24-hour collections for diagnosing pre-eclampsia
The urine spot albumin-creatinine ratio (which is done on a single, on-the-spot sample) reliably identified 99% of pregnant women with high blood pressure who went on to develop severe pre-eclampsia. The spot protein-creatinine ratio, as currently recommended by NICE, was slightly less sensitive identifying over 90% of women. Both spot tests were good value for money.
Nearly 1,000 women, suspected of having pre-eclampsia, took part in this NIHR-funded study, in 36 UK obstetric units. They had h...
Men feel physically and psychologically ill-prepared for prostate cancer surgery
Following prostate cancer surgery men often experience physical changes, such as urinary incontinence and erectile dysfunction, causing negative emotions and distress. This review found that men felt poorly prepared – psychologically and physically – for the changes they might experience after surgery. Surgery was often described as "life-changing", and men described worrying about their future.
NICE recommend that men and their partners/carers are fully informed about pro...
Regional anaesthesia could improve fistula function for kidney dialysis
Use of regional anaesthesia when creating a fistula for vascular access may reduce the risk of failure by about 70%.
Easy access to blood vessels is important when someone needs kidney dialysis and the commonest procedure is forming of an artificial link between arteries and veins, called a fistula. Unfortunately some newly formed fistulas fail because the blood vessel is not “patent” or open wide enough to work properly.
This systematic review found four randomised controlled tria...
Drugs may help people pass larger kidney stones
Three-quarters of people with a large (more than 5mm) single kidney stone will pass the stone within six weeks if they take an alpha-blocker. About half of those taking placebo or no treatment pass the stone in the same period.
Renal colic is a severe pain in the flank and is usually caused by kidney stones when they move into the ureter, the tube between the kidney and bladder. Most small stones pass into the urine without treatment.
Evidence for drug treatment is contradictory. A recent UK t...