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August 14, 2018

Increased risk of cardio-cerebrovascular disease and stroke with a sudden sensorineural hearing loss

You are at an increased risk of getting cardio-cerebrovascular disease and experiencing a stroke if you have a sudden sensorineural hearing loss, a study finds. Another study has found that a sudden sensorineural hearing loss in combination with vertigo indicates a greater risk of stroke.

Increased risk of cardio-cerebrovascular disease and stroke with a sudden sensorineural hearing loss

People who have experienced a sudden sensorineural hearing loss (SSHL) are at greater risk of cardio-cerebrovascular disease (CCVD) and stroke, according to a Korean study.

The researchers behind the study found, after adjustments for other factors, that the hazard ratio of cardio-cerebrovascular disease during the study’s 11 year follow-up period was 2.18 times as high for people who lived with a sudden sensorineural hearing loss compared to the control group without the condition. The risk of a stoke was two times higher, if you had experienced a sudden sensorineural hearing loss.

Another study from Taiwan found that the combination of sudden sensorineural hearing loss and vertigo is associated with an increased subsequent stroke risk than sudden sensorineural hearing loss or vertigo alone. Stroke rates at the studies end were 5.5% with sudden sensorineural hearing loss and vertigo, 3.0% with sudden sensorineural hearing loss alone and 3.9% with vertigo alone.

About the studies

The study “Association of Sudden Sensorineural Hearing Loss With Risk of Cardio-cerebrovascular Disease” used data from the Korea National Health Insurance Service in the period from 2002 to 2013 and consisted of 770 patients of which 154 were diagnosed with a sudden sensorineural hearing loss.  The study was published in JAMA Otolaryngology - Head & Neck Surgery in December 2017

The study “Sudden Hearing Loss with Vertigo Portends Greater Stroke Risk Than Sudden Hearing Loss or Vertigo alone” examined 218,656 patients identified from the National Health Insurance Database of Taiwan and was published in the Journal of Stroke and Cerebrovascular Diseases in November 2017

Sources: JAMA Otolaryngology - Head & Neck Surgery and Journal of Stroke and Cerebrovascular Diseases

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