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Related Concept Videos

Sleep Apnea01:21

Sleep Apnea

409
Sleep apnea is a condition where breathing stops intermittently during sleep, often leading to significant health issues. Each episode can last from 10 to 20 seconds or more and is frequently accompanied by a brief arousal from sleep. This disturbance, largely unnoticed by the individual, can lead to severe daytime fatigue. Commonly, individuals seek help after being informed by their partners about loud snoring and noticeable breathing pauses during sleep.
The condition is more prevalent among...
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Pulse Oximetry01:24

Pulse Oximetry

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Pulse oximetry, or SpO2, is a non-invasive method for continuously monitoring arterial oxygen saturation (SaO2). This procedure involves attaching a probe or sensor to the patient's fingertip, forehead, earlobe, or nose bridge. The sensor works by detecting changes in oxygen saturation levels through light signals generated by the oximeter and reflected by the pulsing blood under the probe.
Purpose
Average SpO2 values are greater than 95%. If the readings fall below 90%, it indicates that...
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Pulse rhythm01:30

Pulse rhythm

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Pulse rhythm refers to the pattern of pulsations within specific intervals, offering valuable insights into the regularity or irregularity of the heart's beats as observed through the pattern of pulsation within specific intervals. A regular pulse exhibits a consistent heart rate with uniform waveforms and pulsation force, variations of which can be classified as normal, weak, or bounding.
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Special considerations while measuring oxygen saturation01:19

Special considerations while measuring oxygen saturation

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Assessing respiratory rate concurrently with pulse measurement is fundamental to patient care, providing valuable insights into the patient's respiratory function. The normal breathing rate for an adult usually falls within a normal range of 12 to 20 breaths per minute. Abnormal respiratory rates can signal underlying health conditions or the need for immediate intervention.
Ensuring accuracy in vital sign recordings while prioritizing patient comfort and minimizing anxiety is...
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Guidelines For Measuring Vital Signs01:19

Guidelines For Measuring Vital Signs

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Following these guidelines can help nurses accurately measure vital signs, assess changes in patient conditions, and provide timely treatment when necessary. Adhering closely to the guidelines ensures the accuracy and reliability of the results.
Before taking a patient's vital signs, a nurse would consider and assess the patient's comfort level and ensure appropriate equipment is available.
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Holter Monitor: 24-Hour Monitoring01:23

Holter Monitor: 24-Hour Monitoring

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Holter monitoring is a continuous electrocardiography (ECG) recording that tracks the heart's electrical activity over an extended period, generally 24 to 48 hours. This noninvasive diagnostic tool detects irregular heart rhythms that may not be captured during a standard ECG performed in a clinical setting.DeviceThe Holter monitor is a portable, small device connected to several electrodes on the patient's chest. These electrodes detect the heart's electrical signals and transmit them to the...
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Related Experiment Video

Updated: Dec 28, 2025

Multi-Modal Home Sleep Monitoring in Older Adults
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An Oximetry Based Wireless Device for Sleep Apnea Detection.

Fábio Mendonça1,2, Sheikh Shanawaz Mostafa1,2, Fernando Morgado-Dias2,3

  • 1Instituto Superior Técnico, University of Lisbon, 1049-001 Lisbon, Portugal.

Sensors (Basel, Switzerland)
|February 13, 2020
PubMed
Summary
This summary is machine-generated.

A new home monitoring device offers an accurate and accessible way to diagnose obstructive sleep apnea (OSA). This non-invasive technology analyzes blood oxygen saturation, providing a convenient alternative to traditional sleep studies.

Keywords:
OSASpO2apneahome monitoring device

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Area of Science:

  • Sleep Medicine
  • Biomedical Engineering
  • Medical Diagnostics

Background:

  • Sleep-related disorders significantly impact sleep quality.
  • Obstructive sleep apnea (OSA) is a prevalent, often undiagnosed sleep disorder.
  • Current gold standard diagnosis (polysomnography) is costly and resource-intensive.

Purpose of the Study:

  • To develop a non-invasive, home-use device for OSA diagnosis.
  • To create an automated algorithm for OSA assessment using blood oxygen saturation.
  • To offer a convenient and accessible alternative to traditional polysomnography.

Main Methods:

  • A self-assembled home monitoring device was developed.
  • An automatic scoring algorithm analyzed blood oxygen saturation signals.
  • Statistical and frequency-based features were used for OSA classification.
  • Minute-by-minute and subject-based OSA diagnoses were performed.

Main Results:

  • The minute-by-minute OSA assessment achieved 88% average accuracy, 80% sensitivity, and 91% specificity.
  • The area under the ROC curve for minute-by-minute assessment was 0.86.
  • Subject-based OSA diagnosis accuracy reached 95%.
  • Performance is comparable to state-of-the-art methods using only blood oxygen saturation.

Conclusions:

  • The developed device and algorithm provide a promising tool for OSA diagnosis.
  • The home-based approach enhances accessibility and reduces diagnostic burdens.
  • The technology has potential for widespread clinical application in sleep disorder management.