Sleep Apnea Raises Cardiovascular Death Risk by 71%

A major new study has found that individuals living with obstructive sleep apnea (OSA) face a significantly higher risk of cardiovascular events or death from any cause. The findings, to be presented at the European Congress on Obesity (ECO) 2026 in Istanbul, highlight the growing health burden linked to sleep disorders, particularly among individuals with obesity.

Key Findings of the Study

The research revealed that adults diagnosed with OSA have a 71 per cent higher risk of experiencing cardiovascular events or all-cause mortality compared to those without the condition. The study analysed electronic health records of 2.9 million individuals, making it one of the largest matched case-control studies on OSA conducted outside the United States. A total of 20,300 OSA patients were compared with 97,412 individuals without the disorder.

Link Between Obesity and OSA

Obstructive sleep apnea is characterised by repeated blockage of the upper airway during sleep, leading to disrupted breathing, poor sleep quality, and long-term health complications. The study found a strong association between OSA and obesity, with nearly 40 to 70 per cent of individuals with OSA also being overweight or obese. Moreover, people with obesity are more likely to develop severe forms of OSA, amplifying their health risks.

Cardiovascular Implications and Risks

The condition significantly increases the likelihood of cardiovascular diseases such as heart attacks and strokes. Even after adjusting for other influencing factors, the elevated risk remained substantial. Researchers emphasised that untreated OSA can lead to chronic strain on the cardiovascular system due to intermittent oxygen deprivation and sleep disruption.

Important Facts for Exams

• Obstructive Sleep Apnea (OSA) involves repeated airway blockage during sleep.
• OSA is strongly linked with obesity and cardiovascular diseases.
• The study analysed data from 2.9 million individuals.
• European Congress on Obesity (ECO) is a major global health conference.

Need for Early Diagnosis and Management

The findings underline the importance of early screening, timely diagnosis, and effective management of both obesity and sleep apnea. Experts stress that integrated healthcare approaches focusing on weight management and sleep health can significantly reduce long-term risks. The study also calls for increased awareness and healthcare interventions to address this often underdiagnosed condition.