Cardiologist and Atrial Fibrillation Researcher Dr. Sanjiv Narayan
Showing posts with label sleep apnea. Show all posts
Showing posts with label sleep apnea. Show all posts
Saturday, August 12, 2017
Fitbit Working on Sleep Apnea Wearable Device
A professor of medicine at Stanford University, Dr. Sanjiv M. Narayan is also the co-founder and co-director of the school’s Arrhythmia Center, which works to develop innovative bioengineered arrhythmia medicine. Outside of his professional life, Dr. Sanjiv Narayan maintains a personal interest in wearable technology like Fitbit.
Fitbit, maker of the fitness tracker of the same name, is currently working on a new device that will help track and recognize sleep apnea. Sleep apnea, a disorder that inhibits proper breathing during sleep, affects 18 million Americans.
The technology, which Fitbit hopes to have finished by 2018, uses a small light to shine through the wearer’s skin to detect the precise color of the blood, which indicates how well-oxygenated it is. For those undiagnosed with sleep apnea, the technology can help determine if they have the disorder, and if or when they should consult a doctor. For those who have already been diagnosed, the wearable can help evaluate the effectiveness of apnea treatment.
Fitbit, already testing prototypes in sleep labs, hopes to enter the medical technology sector to compete with their biggest wearable tech rival, Apple. Provided the medical community accepts the new technology, Fitbit will still have to get approval from the FDA and similar regulatory agencies in other countries.
Wednesday, April 12, 2017
New Research on Sleep Apnea and Developing Brains

Licensed to practice cardiology in California and Missouri, Dr. Sanjiv Narayan is the founder of a technology development firm that he sold to Abbott Laboratories. In acquiring the startup, Abbott gained leading-edge atrial fibrillation treatment modalities with the potential to improve care for patients worldwide. Dr. Sanjiv Narayan has a strong interest in diverse areas of medicine, including sleep apnea.
A condition related to relaxation of the throat muscles during the night, which is also related to atrial fibrillation, sleep apnea causes airway obstruction and brief halts to breathing. Once the brain becomes aware of danger, it sends out signals that wake up the person, and the throat muscles contract and temporarily resolve the problem. Such interruptions can occur as many as 30 times a night, leading to chronic sleep issues.
While little research has been undertaken on sleep apnea and the developing brain, the condition affects approximately 5 percent of children. A recent study pairing University of Chicago and University of California research teams and using brain scan analysis suggests that sleep apnea in children may result in gray matter losses spanning diverse regions of the brain. The next step is described as being one of exploring how these losses may be related to cognitive defects.
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