Overnight pulse oximetry

Computer overnight pulse oximetry is available to patients at the K+31 clinic. With the help of research, specialists can identify breathing disorders that are accompanied by oxygen starvation.

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About the service

About the service

Pulse oximetry is a method for non-invasively determining the amount of oxygenated hemoglobin in arterial blood. It helps doctors understand how efficiently blood transports oxygen throughout the body. In practice, this device is useful both in hospital settings and at home.

The main component of a pulse oximeter is a sensor that is attached to your fingertip or ear. It emits light through tissue and analyzes what percentage of it is absorbed by the blood. In addition, this device allows you to monitor your pulse and provides a heart rate graph.

In modern medical practice, they often resort to the use of high-precision diagnostic methods. One such method is overnight pulse oximetry. Its main task is to control blood oxygen saturation during sleep.

General information about the «overnight pulse oximetry» procedure

When is the procedure scheduled?

Monitoring pulse oximetry is in the arsenal of doctors for a reason - it is justifiably used in a number of cases. In particular, it is carried out with the aim of:

  • Monitoring the condition of patients with COPD. Chronic obstructive pulmonary disease causes problems with oxygen saturation in the blood, especially at night.
  • Monitoring status after operations. After some surgical interventions (particularly on the heart), it is important to monitor the level of oxygen in the blood.
  • Evaluation of the effectiveness of treatment of respiratory disorders. If a person is already taking any treatment, pulse oximetry can help assess how effective it is.
  • Identification of cardiovascular system disorders. Some heart problems manifest themselves through changes in heart rate and blood oxygen saturation levels. Pulse oximetry allows you to clarify these indicators.

Thus, monitoring pulse oximetry is universal and a reliable tool for diagnosing and monitoring various conditions and diseases.

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Indications and contraindications

The main indication of pulse oximetry is to monitor hypoxia, a condition in which the level of oxygen in the blood decreases to critical levels. In particular, this research method is prescribed for suspected sleep apnea. Apnea refers to a temporary cessation of breathing at night, often caused by relaxation of the muscles of the larynx. A pulse oximeter monitors the hypoxia that occurs as a result of these respiratory arrests.

In addition, pulse oximetry allows you to assess the apnea severity index. This indicator characterizes how many times per hour breathing stops and the respiratory rhythm slows down. If the index exceeds 5 episodes per hour, this indicates a problem.

Although the method does not distinguish between different types of apnea (for example, central and obstructive), it is also effective for the initial diagnosis of various breathing problems during sleep.

There are certain situations in which the use of a pulse oximeter is difficult or inappropriate. One of the contraindications is limb injuries. Any damage to a finger or toe makes it very difficult to install the sensor and obtain accurate readings. Other contraindications:

  1. Pain in the distal arms or legs. In cases of sharp pain in the area of the fingertips, using the sensor increases the discomfort.
  2. Neuropsychiatric disorders. In patients with panic attacks and neuroses, the use of the sensor often causes anxiety or fear.

Most contraindications are relative. If one of the above conditions is present, this does not mean that pulse oximetry impossible in principle. Modern sensors are designed to minimize discomfort for the patient. For example, if it is impossible to install the sensor on a finger, it can be attached to the ear.

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Preparation for the procedure

If we are talking about a two-way sensor with a transmission, it is important to pay special attention to its location on the finger. For accurate measurements, it is advisable to darken the room during the procedure. A one-way sensor with a reflective operating principle does not require special preparatory measures.

Some medications can distort the results of the study. If you are taking antidepressants, sedatives or other drugs, may affect sleep, be sure to consult with your doctor. Some of them may have to be temporarily cancelled.

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Behavior during the procedure

First of all, before the study you should avoid consuming foods and drinks containing caffeine - including coffee, tea, chocolate and energy drinks. This is due to the fact that they disrupt the process of falling asleep and negatively affect the quality of sleep. You should also give up alcohol.

It is better to skip daytime sleep before the study. In addition, it is recommended to take a shower, while avoiding oils, sprays and other products - the film created during their application on the skin can prevent reliable fixation of the sensors.

You need to have dinner 2-3 hours before the procedure. If you have specific dietary needs, be sure to inform the medical staff about this. This is especially true for diabetics.

2-3 hours before the start of the procedure, you should put all gadgets aside. Phone and computer screens emit blue light, which suppresses the production of melatonin, a hormone responsible for regulating sleep. In addition, electronic devices interfere with diagnostic equipment. It is also important to note that calls and messages on a mobile phone cause you to wake up at night, so it is better to turn off the device or put it in Do Not Disturb mode.

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Stages of overnight pulse oximetry

The procedure is completely painless and there is no discomfort. The pulse oximetry algorithm looks like this:

1

Equipment installation. This takes about 5-10 minutes. The receiving unit, which is equipped with a microprocessor, is worn on the patient's wrist as a bracelet. The pulse oximetry sensor is carefully attached to one of the fingers

2

Data recording. Once the sensor is installed, the data recording process begins automatically. A person watches on the device screen your current indicators (pulse and blood oxygen saturation level). During the night you need to sleep in your usual way. The device will record all changes and night awakenings at this time.

3

Completion of the procedure. After waking up, the patient must remove the sensor and receiving unit from the wrist. The data recording process ends automatically

After this, the device is transported to a medical facility. Here specialists begin a detailed analysis of the collected data. This process usually takes no more than 5 minutes. After completion of the analysis, the results are provided to the patient in paper or in electronic format. They need to be shown to a doctor, who, if necessary, will refer for further examination or prescribe treatment.

What indicators are considered normal?

Based on pulse oximetry data, preliminary data on the state of the body as a whole can be obtained. Deviations indicate breathing disorders during sleep or other problems that require close attention from a specialist.

Average oxygen saturation level. The norm starts from 93%.
Minimum oxygen saturation level. The critical mark is 90%.
Desaturation index. It describes how many times in an hour the oxygen level in the blood decreases. Normally, this value does not exceed 5 episodes per hour.

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Mitelmayer
Tatyana Valerievna
Head of the department of neurology and psychotherapy, neurologist
Tatarenko
Alena Igorevna
Neurologist, parkinsonologist
Burd
Sergej Georgievich
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Omarova
Sabina Magomedovna
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Reviews 6

In the fall of 2024, I went to the K+31 clinic, where I was correctly diagnosed and received the competent treatment that I really needed. I would like to note the highest professionalism of all the doctors who worked with me, and I express my heartfelt gratitude to neurologist Sitnikova O. Yu., gastroenterologist Anikina N. Yu., endocrinologist Pivovarova S. V., cardiologist Kambegova A. A., neurosurgeon Fumin I. A., and the nurses from the procedure room. Thank you very much for your work! Deep bow! I am grateful to you for your understanding, warmth, kindness, and desire to help. I wish you success in your difficult, but very necessary, noble work. Health to you, people in white coats!
21.11.2024
Tsybriy L.A.
I am in the neurology department, hospital. I express my deep gratitude to the doctor Omarova S.M., I also want to note the attentiveness of the medical staff, the manager, everything is coordinated and prompt!
01.11.2024
Natalia
I would like to thank the somnologist Tsareva E.V., the doctor is a professional in her field. Also thanks to Daria, the department manager for organizing and conducting the consultation!
30.10.2024
Rezeda
Many thanks to Mitelmayer Tatyana Valeryevna. A wonderful specialist whom I will gladly recommend to my friends. From the first minutes you feel that they want to help you, Tatyana Valeryevna listened attentively to all complaints and thanks to the prescribed treatment we coped with the problem in a short time.
29.10.2024
Eugenia
I went to the K-31 clinic with severe dizziness of unknown origin. The therapist examined me completely and sent me to the neurologist Mitelmayer Tatyana Valerievna, who very quickly determined the real cause of the dizziness and successfully eliminated the problem! During the additional examination, in order to exclude other possible causes of the ailment, I was examined by other doctors of the clinic, and they all showed themselves at a high level of professionalism, were very attentive! Thank you very much!
22.10.2024
Vera
I really liked the doctor Omarova! Sabina Magomedovna is a very attentive, knowledgeable specialist, who explains in detail all the nuances associated with the patient's problem. Thank you very much! I recommend this specialist!
07.09.2024
Stollenwerk Anna
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