Low Sleep Oxygen Levels Detected by Smartwatch: When to Seek Medical Help? - Otolaryngology

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When it comes to low sleep oxygen levels detected by a smartwatch, it is essential to take such findings seriously, especially when the readings drop below 90%. In your wife's case, where her oxygen saturation levels have fallen below 80% for extended periods during sleep, it is advisable to seek medical attention.
Low blood oxygen levels, known as hypoxemia, can lead to various health complications, including impaired cognitive function, cardiovascular strain, and in severe cases, organ damage. While your wife does not exhibit symptoms such as snoring or high blood pressure, the fact that she experiences shallow sleep and has a history of elevated blood sugar levels could be contributing factors to her condition.
In terms of which medical specialty to consult, starting with a visit to an Ear, Nose, and Throat (ENT) specialist would be a prudent choice. ENT specialists can evaluate for potential obstructive sleep apnea (OSA) or other sleep-related breathing disorders that may be causing the low oxygen levels. They may recommend a sleep study (polysomnography) to monitor her breathing patterns, oxygen levels, and overall sleep quality during the night.
If the ENT specialist suspects that the issue may be related to pulmonary function, they might refer her to a pulmonologist, who specializes in respiratory conditions. A pulmonologist can conduct further assessments, including pulmonary function tests, to evaluate her lung capacity and efficiency.
It is also worth noting that the smartwatch data, while useful for initial monitoring, should not replace professional medical evaluations. Smartwatches can sometimes produce inaccurate readings due to factors such as poor sensor contact, movement during sleep, or even skin temperature. Therefore, it is crucial to corroborate smartwatch findings with clinical assessments.

In summary, given the concerning oxygen saturation levels and the potential risks associated with prolonged hypoxemia, it is advisable for your wife to seek medical attention promptly. Starting with an ENT specialist is a good approach, and they can guide further investigations and treatment options based on their findings. Early intervention can help manage any underlying conditions and improve her overall sleep quality and health.