• 제목/요약/키워드: Respiratory Rate

검색결과 1,685건 처리시간 0.028초

휴대형 심전도 모니터링 장치에서의 2가지 호흡 검출 알고리즘 (Two algorithms for detecting respiratory rate from portable patient monitoring device)

  • 김종명;홍주현;김남진;차은종;이태수
    • 대한전기학회:학술대회논문집
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    • 대한전기학회 2006년도 심포지엄 논문집 정보 및 제어부문
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    • pp.36-38
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    • 2006
  • In this study, two algorithms for detecting respiratory rate from Portable ECG device were presented. The first algorithms counts the number of ECG samples between R-R peaks, which varies according to respiratory states of patients, such as, exhalation and inhalation. The second algorithms detects the rate by measuring the size of R wave, which also varies according to the respiratory status of patient. These two algorithms were programmed to the laboratory developed ECG device and their usefulness was verified in laboratory environment.

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Comparison of Multilevel Growth Models for Respiratory Function in Patients with Tracheostomy and Stroke using Cervical Range of Motion Training

  • Kim, SoHyun;Cho, SungHyoun
    • Physical Therapy Rehabilitation Science
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    • 제10권3호
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    • pp.328-336
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    • 2021
  • Objective: The purpose of this study was to investigate the effect of cervical range of motion training on the change in respiratory function growth rate at the group and individual level in stroke patients and stroke patients with tracheostomy tube. Design: A Multilevel Growth Model Methods: 8 general stroke patients and 6 stroke patients who had a tracheostomy tube inserted were subjected to cervical range of motion training 3 times a week for 4 weeks. Force vital capacity (FVC), Forced expiratory volume in the first second (FEV1), Forced expiration ratio (FEV1/FVC) and Manual assist peak cough flow (MPCF) were measured. Data were analyzed using descriptive statistics and multilevel analysis with HLM 8.0. Results: A significant difference was found in the respiratory function analysis growth rate of the entire group (p<0.05), and two groups were added to the research model. The linear growth rate of respiratory function in patients with general stroke increased with the exception of FEV1/FVC (p<0.05). Stroke patients with tracheostomy tube showed a decreasing pattern except for FVC. In particular, MPCF showed a significantly decreased result (p<0.05). Conclusions: This study found that the maintenance of improved respiratory function in stroke patients with tracheostomy tube decreased over time. However, cervical range of motion training is still a useful method for respiratory function in general stroke patients and stroke patients with tracheostomy tube.

ULO 저장에서의 사과 Fuji의 호흡속도 (Respiration rate of the Fuji apple according to the ULO storage conditions)

  • 강준수;이호재;최종욱
    • 한국식품저장유통학회지
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    • 제1권2호
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    • pp.87-92
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    • 1994
  • For the measurement of the change of respiration rate caused by the gas content of storage atmosphere which furnishes important data for the interpretation of ULO storage, GC was used. It has been shown that the respiration rate and respiratory heat generation rate of Fuji apple is more than doubled in normal low temperature storage when compared with ULO storage, and that in ULO storage the respiration rate and respiratory heat generation rate directly proportional to the concentration of O2 in storage atmosphere as well as inversely proportional to that of CO2. It was possible to establish a functional formula for the respiratory heat generation rate of Fuji apple in all the storage conditions in terms of u=-0.7638+0.0003 O2-0.0007 log(CO2)+0.1369 log(Tb) concerning temperature and the concentration of O2 and CO2

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Ketamine으로 마취된 견에 있어서 Doxapram의 회복효과 (Effects of Doxapram on Ketamine Anesthesia in Dogs)

  • 김명철
    • 한국임상수의학회지
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    • 제8권2호
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    • pp.171-175
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    • 1991
  • This study was carried out to evaluate the effects of doxapram after ketamine treatment. Twelve healthy dogs were anesthetized with ketamine(15mg/kg IM) and then twenty minutes after the injection of ketamine six dogs received doxapram(2mg/kg IV)and six dogs received saline(5$m\ell$ IV)as a control group. Recovery time, respiratory rate, heart rate and electrocardiogram findings(ECG)were recorded. Recovery time was significantly decreased(p<0.05)by doxapram. Respiratory rate showed a maximal increase immediately after the administration of doxapram. Thereafter respiratory rate gradually decreased and revealed normal levels 10 minutes after the injection of doxapram. Ketamine increased significantly (p<0.05) heart rate. Heart rate showed slight increase immediately after the administration of doxapram. Thereafter heart rate gradually decreased, and revealed normal levels 20 minutes after the injection of doxapram.

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Acute Effects of Dokha Smoking on the Cardiovascular and Respiratory Systems among UAE Male University Students

  • Shaikh, Rizwana B.;Haque, Noor Mohammad Abdul;Al Mohsen, Hassan Abdul Hadi Khalil;Al Mohsen, Ali Abdul Hadi Khalil;Humadi, Marwa Haitham Khalaf;Al Mubarak, Zainab Zaki;Mathew, Elsheba;Al Sharbatti, Shatha
    • Asian Pacific Journal of Cancer Prevention
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    • 제13권5호
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    • pp.1819-1822
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    • 2012
  • Background: In the United Arab Emirates (UAE) tobacco use is rampant. A less reported, yet widely used form of smoking native to UAE is midwakh or dhokha. The aim of the study is to assess the acute effects of smoking dokha (Arabian pipe) on the cardiovascular and respiratory systems among male university students in the UAE. Method: A quasi-experimental study was conducted among 97 male volunteers aged more than 17 years. Blood pressure, heart rate and respiratory rate of each participant, were measured before and immediately after smoking. A self administered questionnaire was used to collect personal details and data about smoking pattern. Results: Mean increases in systolic blood pressures ($12{\pm}1$ mmHg), heart rates ($20{\pm}2$ bpm) and respiratory rates ($4{\pm}1$ breaths/min) were observed (p < 0.001). A mean decrease in diastolic blood pressures ($1{\pm}1$ mmHg) was observed (p = 0.483). Conclusion: Smoking dokha has a significant acute effect on systolic blood pressure, heart rate and respiratory rate. Anti smoking campaigns must address the ill effects of this form of smoking. Results from the study warrant further research into this method of smoking which is becoming more popular.

홀센서 집게형 맥진기 요골동맥파에 FFT를 적용한 호흡수 추출 연구 (Extraction of Respiratory Rate by using FFT for Radial Artery Pulse Waves Acquisited by Clip-type Pulsimeter with a Hall Sensor)

  • 조현성;이상석
    • 한국자기학회지
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    • 제22권5호
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    • pp.178-182
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    • 2012
  • 영구자석과 반도체 홀센서가 구비된 집게형 맥진기로 얻은 맥진파형에 고속 푸리에변환(FFT)을 적용하여 생체신호인 호흡수를 추출하였다. 추출된 호흡수는 맥진파형의 형태가 항상 변화하는 요인에 의존하는 심장의 운동에 대한 오차까지 고려하였다. 인위적인 호흡수 템포 15, 20, 30, 40, 50에 각각 측정한 맥진파형의 FFT 스펙트럼에서 피크값과 일치하는 주파수 0.125 Hz, 0.16 Hz, 0.25 Hz, 0.33 Hz, 0.41 Hz와 일치하였다. 100 s, 200 s, 300 s 동안 얻은 맥진파형 데이터에서 호흡성분 추출 알고리즘을 적용한 결과, 시간이 긴 300 s에서 FFT 스펙트럼 피크가 가장 크게 뾰쪽해지는 결과를 얻었다. 집게형 맥진기가 인체의 물리적인 영향을 주는 호흡수를 추출해 내는데 유용한 기기임을 확인하였다.

서울 지하철을 이용하는 승객들의 비악성 호흡기질환과 졸음 증상 유병물 분석 (Analysis on Non-malignant Respiratory and Drowsiness Rate Symptom for Passengers Using Subway in Seoul)

  • 박동욱;진구원;류경남
    • 한국환경보건학회지
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    • 제32권5호
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    • pp.412-417
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    • 2006
  • A self-administrated non-malignant respiratory symptoms questionnaire was sent to 1,099 citizens who take subway running in Seoul city. Symptom prevalence rate was high: 70.6% of subjects reported 'chest tightness', 43.4%, 'dysphnea'; 76.2%, 'dry cough'; 49.5%, 'runny nose'; 94.4%, 'drowsiness' when they take subway. The groups responding significant higher respiratory and drowsiness symptoms were 'young passengers' (vs elderly passengers), 'the female' (vs male), 'using subway everyday' (vs often), 'using subway for rush-hour time' (vs other than rush-hour), 'using transfer subway' (no transfer), 'using underground track' (vs ground track). Logistic. regression model was employed to find personal and subway characteristics affecting non-malignant respiratory symptoms. This study concluded that respiratory diseases history such as asthma, rhinitis, sinusitis, hypersensitivity pneumonitis significantly affect 'dry cough' and 'runny nose'. Thus, passengers with respiratory diseases history shows 2.8 times greater 'dry cough' than and 3.4 times greater 'runny nose' than those passengers without respiratory diseases history felt. This results indicated that several measures have to take to protect sensitive groups such as passengers with respiratory diseases, children and elderly people. Also passenger who use to transfer shows 1.7 times higher runny nose symptoms than that passenger who do not transfer felt.

Current Status of Noninvasive Ventilation Use in Korean Intensive Care Units: A Prospective Multicenter Observational Study

  • Nam, Hyunseung;Cho, Jae Hwa;Choi, Eun Young;Chang, Youjin;Choi, Won-Il;Hwang, Jae Joon;Moon, Jae Young;Lee, Kwangha;Kim, Sei Won;Kang, Hyung Koo;Sim, Yun Su;Park, Tai Sun;Park, Seung Yong;Park, Sunghoon;Korean NIV Study Group
    • Tuberculosis and Respiratory Diseases
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    • 제82권3호
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    • pp.242-250
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    • 2019
  • Background: Data on noninvasive ventilation (NIV) use in intensive care units (ICUs) are very limited in South Korea. Methods: A prospective observational study was performed in 20 ICUs of university-affiliated hospitals from June 2017 to February 2018. Adult patients (age>18 years) who were admitted to the ICU and received NIV treatment for acute respiratory failure were included. Results: A total of 156 patients treated with NIV were enrolled (mean age, $71.9{\pm}11.6years$). The most common indications for NIV were acute hypercapnic respiratory failure (AHRF, n=89) and post-extubation respiratory failure (n=44). The main device for NIV was an invasive mechanical ventilator with an NIV module (61.5%), and the majority of patients (87.2%) used an oronasal mask. After the exclusion of 32 do-not-resuscitate patients, NIV success rate was 68.5% (85/124); ICU and hospital mortality rates were 8.9% and 15.3%, respectively. However, the success rate was lower in patients with de novo respiratory failure (27.3%) compared to that of patients with AHRF (72.8%) or post-extubation respiratory failure (75.0%). In multivariate analysis, immunocompromised state, de novo respiratory failure, post-NIV (2 hours) respiratory rate, NIV mode (i.e., non-pressure support ventilation mode), and the change of NIV device were significantly associated with a lower success rate of NIV. Conclusion: AHRF and post-extubation respiratory failure were the most common indications for NIV in Korean ICUs. Overall NIV success was achieved in 68.5% of patients, with the lowest rate in patients with de novo respiratory failure.

국내 민간병원에서 치료한 다제내성결핵 환자의 치료 결과 및 예후 인자 (Treatment Outcomes and Prognostic Factors in Patients with Multidrug-Resistant Tuberculosis in Korean Private Hospitals)

  • 박진경;고원중;김덕겸;김은경;김유일;김희진;김태형;김재열;박무석;박이내;박재석;이기만;송숙희;이진화;이승헌;이혁표;임재준;임재민;제갈양진;정기환;허진원;최재철;심태선
    • Tuberculosis and Respiratory Diseases
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    • 제69권2호
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    • pp.95-102
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    • 2010
  • Background: The increasing rate of drug-resistant tuberculosis (TB) is a threat to the public health and TB control. In Korea, about 75~80% of TB patients are treated in private hospitals and the rate has been continuously increasing since 2000. Methods: On a retrospective basis, we enrolled 170 newly diagnosed with or retreated for multidrug-resistant TB (MDR-TB) in 2004 from 21 private hospitals. We extracted the following demographics and treatment history from patient medical records: initial treatment outcomes, cumulative survival rates, treatment outcomes, and prognostic factors. Results: Of the 170 patients, the majority were male (64.1%), the mean age was 44.5 years old, and mean body-mass-index was $20.2kg/m^2$. None of the patients tested positive for HIV. Eleven (6.5%) were confirmed to have extensively drug-resistant TB (XDR-TB) at treatment initiation. Treatment success rates were not different between XDR-TB (36.4%, 4/11) and non-XDR MDR-TB (51.6%, 82/159). Default rate was high, 21.8% (37/170). Far advanced disease on X-ray was a significant negative predictor of treatment success; advanced disease and low BMI were risk factors for all-cause mortality. Conclusion: In private hospitals in Korea, the proportion of XDR-TB in MDR-TB was comparable to previous data. The treatment success rate of MDR-/XDR-TB remains poor and the failure rate was quite high. Adequate TB control policies should be strengthened to prevent the further development and spread of MDR-/XDR-TB in Korea.

사춘기전(思春期前) 아동(兒童)의 정상(正常) 비강(鼻腔) 통기도(通氣度)에 관한 연구(硏究) (A STUDY ON NORMAL NASAL RESPIRATORY RESISTANCE IN THE PREPUBERTAL CHILDREN)

  • 양원식;서정훈;남동석;장영일
    • 대한치과교정학회지
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    • 제22권1호
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    • pp.31-42
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    • 1992
  • This study was designed to analyze normal nasal respiratory resistance in prepubertal children. The subjects consisted of 30 prepubertal children (male: 15, female: 15). The mean age was 11.4 years in male children and 11.5 years in female children. The results were as follows: I. The normal nasal respiratory patency was lower than the normal values from RION corp. 2. The normal nasal respiratory airflow rates showed no sexual differences. And there were no differences between inspiration and expiration. 3. Before and after use of nasal decongestants, there were no significant differences of normal nasal respiratory airflow rates and after the administration of nasal decongestants, nasal respiratory patency manifested lower variability. 4. The normal nasal respiratory resistance without nasal decongestants at 150 Pascal in inspiration was $0.30Pa/cm^3/sec({\pm}0.07)$ and peak nasal inspiratory airflow rate was $1016.83cm^3/sec({\pm}223.89)$. 5. The normal nasal respiratory resistance with nasal decongestant at 150 Pascal in inspiration was $0.25Pa/cm^3/sec({\pm}0.05)$ and peak nasal inspiratory airflow rate was $1148.33cm^3/sec({\pm}234.29)$.

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