Updated 29 April 2016

Better pain relief needed for preemies

Experts say pain relief for newborns and especially preemies is often inadequate, despite evidence that low-tech comforting methods and medication can both be effective.


It happens every day in hospital intensive care units: fragile babies born way too soon are poked and prodded as part of medical care meant to help them survive – and it can be painful.

Inadequate management of pain

Heel sticks for blood tests, inserting IV tubes, adjusting breathing machines even the gentlest jostling to remove a bandage from translucent skin can cause kitten-like whimpers and tiny arms and legs to suddenly jerk. Sometimes there's no sound at all just a dip on the heart rate monitor.

It used to be thought that these infants were too young to feel pain. But even now, experts say, pain relief for newborns and especially preemies is often inadequate, despite evidence that low-tech comforting methods and medication can both be effective.

The American Academy of Paediatrics has new advice  and an admonishment.

Read: Preemies who cry a lot may have problems later on

Pain in newborns "continues to be inconsistently assessed and inadequately managed", the academy says. Remedies "are currently underused for routine minor yet painful procedures".

Preventing and reducing pain, particularly in preemies, is important because of the potential consequences for infant development, the academy said in a policy issued in February.

Pain cues not always obvious

Research suggests repeated bouts of pain leave infants prone to potential long-term ill effects including changes in nerve structures and brain development, and hypersensitivity to touch and stress and it's the smallest and sickest babies who experience the greatest number of painful procedures.

Pain assessment can be a significant challenge in preemies, said newborn specialist Erin Keels, the policy's lead author and a nurse at Nationwide Children's Hospital in Columbus, Ohio.

Read: Lullabies may help sick preemies

Preemie's pain cues aren't always obvious. They often have multiple health problems that need attention, and in busy intensive care units, pain relief for every day minor procedures can sometimes get overlooked, she said.

The new guidance was prompted in part by recent research showing benefits from alternatives to medication, Keels said. These include sugar-dipped pacifiers, tight swaddling and skin-to-skin contact with moms and dads.

Newer ways to measure infant pain also are being tested, including measuring brain waves and electrical impulses in the skin.

Appropriate pain management

Pain management during surgery and other major procedures typically requires medication, often opioids including morphine.

Read: 'Extreme preemies' mostly do catch up

Short-term side effects of these drugs may include a slowed heart rate, low blood pressure, and drug dependence.

Some small studies have linked use of these drugs in extremely premature babies with slowed weight gain, smaller head size and behaviour troubles later in childhood, but research on appropriate doses and potential long-term effects "is woefully lacking", the academy says.

It urges more research on using these drugs and other medications in infants.

"While we want to manage pain appropriately, we also have to pay attention to not going too far in the other extreme," said Dr William MacKendrick, medical director of the infant special care unit at NorthShore Evanston Hospital in Evanston, Illinois. He was not involved in the policy.

U.S. hospitals are required to assess patients' pain in order to be accredited, and it's an issue newborn specialists are increasingly paying attention to.

Read more:

Preterm birth has lifelong effect 

Swaddling eases pain in preemies

Skin emollients save preemies


American Academy of Paediatrics: http://www.aap/org




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