Tuesday, December 11, 2018

Benefits of statins far outweigh risks

The benefits of statins in reducing the odds of heart attacks and strokes far outweigh any risks of side effects, according to a scientific statement released by the experts. 

The statement, based on a review of a plethora of studies evaluating the safety and side effects of the widely used cholesterol-lowering drugs, is scheduled for publication soon.

“For consumers, the message is that the benefits of statins well outweigh the risk of important harms,” said statement co-author.

Patients “should discuss the reasons for taking statins and any concerns about risks with their health care provider.” 

Currently, one in four Americans over age 40 takes a statin drug, the researchers noted. But as many as 10 percent stop taking statins because of symptoms they fear are caused by the medications. 

The authors urge patients to see a health care provider before quitting statins because of presumed side effects, except in the case of one type of symptom: dark urine the color of cola or coffee. That symptom can be the sign of the rare, but dangerous, side effect called rhabdomyolysis, a condition in which muscle fibers break down rapidly. The condition can result in acute kidney failure. 
Rhabdomyolysis is seen in fewer than one in 1,000 patients taking statin therapy, the authors reported. 

The other serious side effect is severe liver damage, which the authors reported occurred in about one in 100,000 patients taking statins. 

"Routine tests of muscle and liver function are not recommended,” the researcher said. “An assessment of muscle symptoms and other medications that can affect the muscles is recommended as a baseline.” 

Most muscle aches and pains in people taking statins “are not serious and are not necessarily caused by statins,” the author said. “These symptoms are more likely to be statin related if they affect both sides of the body and the thigh and shoulder muscles and occur within the first few weeks or months of starting treatment.”

For statin users worried about muscle pains and aches, blood tests to measure creatine kinase levels can confirm or rule out rhabdomyolysis. 

“Severe liver impairment is very rare,” the researcher said. “Symptoms can include skin and eyes becoming yellow, dark urine, abdominal pain, itchy skin, pale stool and bruising.” 

The researchers also determined that statins could raise the risk of diabetes - but only in people who were likely to develop the disease anyway, based on their risk factors. The risk for bleeding in the brain was not increased with statin use, except in those who had already had a stroke. 
 
However, the authors found “no convincing evidence for a causal relationship between statins and cancer, cataracts, cognitive dysfunction, peripheral neuropathy, erectile dysfunction, or tendonitis.” 

While there can be side effects, even rare serious ones, patients should ask, “‘What is the ‘side effect’ of not taking statins?’ It’s a 25 to 50 percent increased risk of having a heart attack, a stroke or a premature cardiovascular death,” said  a professor of cardiovascular medicine.

With respect to one of the more serious side effects - rhabdomyolysis - it’s even more rare than the new statement suggests, if you look only at patients without heart disease who are taking statins to lower cholesterol as a preventive measure, said a Prof. In those patients, the risk “is more like one in 50,000 or 100,000,” he added. 

Statins are among the “very few medications invented in the modern era that save lives,” said a medical director of Cardiac Cath Lab.

“For the appropriate patients, taking statins for primary prevention saves lives and even in secondary prevention statins save lives,” said a Dr.“The most important thing is to be in direct consultation with a cardiologist or primary care physician, so if you start experiencing any of the side effects, you can get in touch with your doctor sooner and get the appropriate care.” 

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