Smartphone App Will Be Able to Predict Diabetes

MedicalResearch.com Interview with:

Robert Avram MD MScDivision of CardiologyUniversity of California, San Francisco

Dr. Robert Avram

Robert Avram MD MSc
Division of Cardiology
University of California, San Francisco

MedicalResearch.com: What is the background for this study? Would you briefly describe what is meant by Photoplethysmography?

While analyzing the heart rate data as collected using smartphones apps in the Health-eHeart study, we noticed that diabetic patients had, on average, a higher ‘free-living’ heart rate than non-diabetic patients when adjusted from multiple factors. This pushed us to analyze the signal to see if there were other features that would help differentiate diabetes patients from non-diabetes patients. By identifying these features, we saw a huge opportunity to develop a screening tool for diabetes using deep learning and a smartphone camera and flash, in order to classify patients as having prevalent diabetes/no-diabetes.

Photoplethysmography is the technique of measuring the difference in light absorption by the skin in order to detect blood volume changes in the microvasculature. Most modern mobile devices, including smartphones and many fitness trackers (Apple Wathc, FitBit), have the ability to acquire PPG waveforms, providing a unique opportunity to detect diabetes-related vascular changes at population-scale.  Continue reading

Smartphone App Can Screen For Atrial Fibrillation

MedicalResearch.com Interview with:

Dr. Ngai-yin Chan Princess Margaret Hospital Lai Chi Kok, Hong Kong

Dr. Ngai-yin Chan

Dr. Ngai-yin Chan
Princess Margaret Hospital
Lai Chi Kok, Hong Kong

MedicalResearch.com: What is the background for this study?

Response: Atrial fibrillation (AF) is the most common sustained heart rhythm disorder which can cause stroke, heart failure and an increased risk of death. The risk of stroke can be reduced substantially with drug treatment. However, a quarter of patients with AF causing stroke have silent and asymptomatic AF before stroke. The current guidelines recommend opportunistic screening for AF. Whether systematic community screening for AF with a convenient smartphone ECG can reduce the burden of AF remains unknown. Continue reading

Texting or Talking While On Treadmill Reduces Exercise Intensity

Michael Rebold, PhD, CSCS Assistant Professor Department of Exercise Science Bloomsburg University Bloomsburg, PA 17815MedicalResearch.com Interview with:
Michael Rebold, PhD, CSCS

Assistant Professor
Department of Exercise Science
Bloomsburg University
Bloomsburg, PA 17815

Medical Research: What is the background for this study? What are the main findings?

Dr. Rebold: We assessed how common smartphone uses (texting and talking) interfere with treadmill exercise.

We found that when individuals use their smartphones during exercise for texting or talking, it causes a reduction in exercise intensity.
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Smartphone Medical Device Can Test For Three STDs in 15 Minutes

Smartphone dongles performed a point-of-care HIV and syphilis test from finger prick whole blood in 15 minutes, operated by health care workers trained on a software app. Credit: Samiksha Nayak, Columbia Engineering

Smartphone dongles performed a point-of-care HIV and syphilis test from finger prick whole blood in 15 minutes, operated by health care workers trained on a software app. Credit: Samiksha Nayak, Columbia Engineering

MedicalResearch.com Interview with:
Tassaneewan Laksanasopin
PhD Candidate
Molecular and Microscale Bioengineering Lab
Columbia University

Medical Research: What is the background for this study? What are the main findings?

Response: We miniaturized and integrated all components needed for blood test (similar to ELISA) to be run on a smartphone accessory for point-of-care testing of infectious diseases.  The device simultaneously detects three infectious disease markers for HIV, treponemal syphilis and nontreponemal syphilis from a finger prick of blood in just 15 minutes.  In a blinded experiment in three health clinics in Rwanda, local health care workers obtained diagnostic results from 96 patients enrolled in prevention of mother-to-child transmission and voluntary counseling programs.  The test performance from our triplexed test was 92-100% sensitivity and 79-92% specificity compared to the gold standard of lab-based HIV ELISA, Treponema pallidum haemagglutination and rapid plasma reagin.  Importantly, patient preference for the dongle was 97% compared to lab-based tests, with most pointing to the convenience of obtaining quick results with a single finger prick.  This work suggests coupling microfluidics with recent advances in consumer electronics can make certain lab-based diagnostics accessible to almost any population with access to smartphones.

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Cardiac Rehabilitation Enhanced By Smartphone App

MedicalResearch.com Interview with:
Dr Mohanraj K Karunanithi
Research Team Leader | Integrated Mobile Health Systems
The Australian e-Health Research Centre
Digital Productivity and Services Flagship
CSIRO

Medical Research: What are the main findings of the study?

Dr. Karunanithi:

  • 33% more clients completed the innovative home-based cardiac rehabilitation (CR) delivery using smartphone and the internet (Care Assessment Platform CR program) compared with the traditional centre-based cardiac rehabilitation program.
  • Care Assessment Platform-CR  was as effective as tradition CR program in improving physical activity, diet intake, and lowering depression
  • Care Assessment Platform -CR was also effective in reducing weight, and anxiety levels and more importantly, the overall health related quality of life.

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