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A large group of children’s doctors says that only certain high-risk babies should receive a drug to prevent severe problems from a common virus. The American Academy of Pediatrics (AAP) says that evidence now shows other children are unlikely to benefit. But the new advice has led to a strong protest by the drugmaker. The drug is palivizumab (Synagis). It is given as a monthly shot to help prevent severe problems from respiratory syncytial virus (RSV). Nearly all children become infected with RSV by age 2. For most, it’s a mild illness. But RSV is also the most common cause of pneumonia in babies. The new AAP statement narrows the definition of which “high-risk” babies should get the drug. It says that research shows benefit for only a few groups.

Though it’s used widely for many kinds of pain, acetaminophen (Tylenol and generics) may not help new back pain, a study suggests. The study included 1,650 adults with new pain in the lower back. They were randomly divided into 3 groups. One group got usual doses of paracetamol for up to 4 weeks. That’s the name for acetaminophen in Australia, where the study was done. A second group received identical placebo (fake) pills. A third group got some of each. On average, people in all groups felt better in just over 2 weeks. There were no differences among the groups in pain, sleep problems, disability or quality of life. The journal Lancet published the study. HealthDay News wrote about it July 23.

A study has provided new estimates of the risk that one surgical technique to remove the uterus might spread an undetected cancer. The study looked at morcellation. This technique uses a power cutter to slice the uterus into tiny pieces. Sometimes hysterectomy (removal of the uterus) is done through several small incisions instead of one large incision. The surgeon views the area through a tool called a laparoscope. Cutting up the uterus with morcellation allows removal through the small incisions. But in some cases, undetected cancers have been cut up at the same time. This has allowed cancer to spread to other organs. In April, the Food and Drug Administration discouraged use of this procedure. The new study looked at insurance data for 230,000 hysterectomies. All were done using the less invasive procedure with small incisions. About 36,000 used morcellation.

People who have had strokes and their family members can help detect an increased risk of a second stroke, a new study suggests. The technique used was a simple one: checking the pulse. The study included 256 people. Each person had a prior stroke caused by a blood clot. Stroke survivors and close family members were trained to detect atrial fibrillation by taking the pulse. This irregular heart rhythm can increase the risk of blood clots forming in the heart. A clot that travels to the brain may cause a stroke. All of the stroke survivors received EKG tests. They found that 57 people had atrial fibrillation. The EKG results were compared with pulse readings performed by stroke survivors, relatives and health professionals. Pulse readings done by patients correctly detected 54% of the cases of atrial fibrillation. Relatives detected 77% and health professionals 97%.