A new study of nearly 34,000 individuals has found a connection between obstructive sleep apnea and the risk of developing cancer.

Results of the study revealed that it was the chronic low blood oxygen levels attributed to sleep apnea that contributed to the higher cancer risk.

Study participants underwent sleep studies at four large Ontario academic hospitals.

While the connection was made between obstructive sleep apnea and a higher chance of developing cancer, the researchers believe epidemiological evidence linking OSA and cancer is still not entirely clear.

The study examined the link between individual clinical and polysomnographic data, the range of data taken from the participants collected through diagnostic technologies used in overnight sleep studies. The data came from sleep clinics and health administrative databases across Canada's provinces. Information regarding cancer type and cancer status was collected from the Ontario Cancer Registry.

Individuals who were free of cancer when the study began were analyzed further to identify the severity of their OSA at the beginning of the study in their followup for cancer development. The researchers also looked at the participants' age, sex, alcohol use, smoking, obesity and other health issues and co-morbidities.

The researchers found that severe cases of OSA, which are classified as more than 30 breathing interruptions per hour during sleep, saw a 15 to 30 percent increase in developing cancer compared to participants without OSA.

The study also looked at the specific cancers related to breathing interruption and found colorectal, kidney, lung and smoking-related cancer subtypes were prominent in the participant groups.

'Sleep apnea has been connected to a variety of cancers and potentially fatal illnesses,' said Dr. Richard Armstrong of Legends Dental in Waco, Texas.

Sleep apnea affects more than 22 million Americans, many of whom are untreated.

'A large percentage of the population do not know they have the condition until other illnesses are diagnosed,' Armstrong said.


Source: Healio. Risk for incident cancer rises with severity of obstructive sleep apnea. 24 June 2020.

sleeping child

Kids and Sleep Apnea

If your child or teen is struggling to stay awake, having trouble concentrating on homework, falling behind in school, is smaller than their peers, experiencing mood swings or still wetting the bed well beyond potty training, you may be at your wit's end to find the cause — and the right treatment. You may be surprised to find out that the answer could be in how they sleep.

weight gain related to sleep apnea

Obstructive Sleep Apnea Contributes to Weight Gain

Obstructive sleep apnea can also contribute to weight gain and obesity. Research has shown that approximately 40 percent of the people living with obesity also have obstructive sleep apnea, and 70 percent of people with obstructive sleep apnea are obese.

Growth Guidance

Overview of Symptoms in Children for Needed Growth Guidance

You may have heard the saying 'An ounce of prevention is worth a pound of cure,' but do you know what it means? It means that if you take care of something today, it won't become a problem to fix later. This theory can apply to a lot of things, including home repair, car maintenance and orthodontics. That's right, we said orthodontics. Particularly, this theory applies to orthodontic treatment and children.