• 제목/요약/키워드: Nasal peak inspiratory flow

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만성기침환자에서 비강최대흡기유속 측정의 의의 (Clinical Significance of Nasal Peak Inspiratory Flow Rate in Patients with Chronic Cough)

  • 안창혁;이병훈;박용범;최재철;지현석;박성진;강순복;김재열;박인원;최병휘;허성호
    • Tuberculosis and Respiratory Diseases
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    • 제46권5호
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    • pp.654-661
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    • 1999
  • 연구배경 : 만성기침환자에 있어서 비폐색과 같은 주관적인 상기도 증상을 객관적인 지표로 나타내어 비교할 수 있게 하기 위해, 최근 비교적 높은 재현성을 보이는 것으로 보고된 비강최대흡기유속을 측정하여 만성기침환자들에서 비폐색을 객관적으로 측정해보고자 하였다. 방 법 : 정상인 7명에서 하루 2회씩 3일 동안 휴대용 폐활량 측정기를 이용하여 비강최대흡기유속과 폐기능검사를 시행하였다. 이들 7명을 포함한 총 32명의 정상인들과 만성기침환자 32명을 선별하여 최초 첫 방문 시에 비강최대흡기유속과 폐기능검사를 시행하였다. 결 과 : 정상인 7명에 대해서는 비교적 일관된 비강최대흡기 유속과 $FEV_1$ 및 FVC를 얻을 수 있었다. 만성기침환자는 남자 14명, 여자 18명으로 총 32명이었으며 나이는 $41.4{\pm}15.9$세였으며, 정상인은 남자 22명, 여자 10명으로 총 32명이었으며 나이는 $39.8{\pm}18.6$세였다. 만성기침환자군과 정상인군 사이의 연령 및 폐기능검사 상의 차이는 없었다. 만성기침환자들에서 비강최대흡기유속은 $2.25{\pm}0.68\;L/sec$, 정상인들에서는 $2.75{\pm}1.00\;L/sec$로 만성기침환자에서 의미 있게 낮았다(p=0.02). 만성기침환자들 중, 후비루종후군환자들이 27명으로 가장 많았으며, 비강최대흡기유속은 $2.18{\pm}0.66\;L/sec$로 정상인 $2.75{\pm}1.00\;L/sec$ 보다 더욱 의미 있게 낮았다(p=0.006). 결 론 : 비강최대흡기유속은 만성기침환자들에 있어서 주관적인 비폐색 증상을 객관적으로 보여주는 지표이다. 비강최대흡기유속은 비교적 재현성 있는 지표이며, 정상인에 비해서 만성기침환자, 특히 원인 질환이 후비루 증후군인 환자들에서 특히 감소되었다. 하지만, 양군간의 값이 중복되는 범위가 많아서 진단 및 감별진단의 지표로서의 가치는 좀 더 많은 대상에 대한 연구에 의하여 확인되어야 할 것으로 생각된다.

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Long-term effects of maxillary skeletal expander treatment on functional breathing

  • Andrew Combs;Ney Paredes;Ramon Dominguez-Mompell;Martin Romero-Maroto;Boshi Zhang;Islam Elkenawy;Luca Sfogliano;Layla Fijany;Ozge Colak;Ben Wu;Won Moon
    • 대한치과교정학회지
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    • 제54권1호
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    • pp.59-68
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    • 2024
  • Objective: To investigate the long-term effects of maxillary skeletal expander (MSE) treatment on functional breathing. Methods: Objective measures of breathing, the peak nasal inspiratory flow (PNIF), and peak oral inspiratory flow (POIF), and subjective measures of breathing, the visual analog scale (VAS) and nasal obstruction symptom evaluation (NOSE) survey, were used to investigate the long-term effects of MSE in functional breathing. Seventeen patients, mean age 19.4 ± 3.9 years treated at the UCLA Orthodontics Clinic were assessed on their functional breathing at 3 timepoints: pre-expansion (T0), post-expansion (T1), and post-orthodontic treatment (T2). Results: Immediately after expansion (T1), all the objective functional breathing values were significantly increased in comparison to T0 (P < 0.05). The VAS total, VAS right and VAS left were significantly lower at T1 in comparison to T0 (P < 0.05). At 26.8 ± 3.9 months after MSE expansion (T2), PNIF total, PNIF right, PNIF left, and POIF were significantly higher when compared to T0 (P < 0.05). Also, VAS total, VAS right and VAS left were significantly lower at T2 when compared to T0 (P < 0.05). Additionally, there was a positive correlation between PNIF and the magnitude of expansion at anterior nasal spine and zygomaticomaxillary point (ZMA). There was a positive correlation between total VAS and the magnitude of expansion at the ZMA. There were no significant changes for the NOSE subjective breathing measurement at all time comparisons. Conclusions: Overall, MSE treatment produces an increased objective and subjective airway improvement that continues to remain stable in the long-term post expansion.

Effect of air stacking training on pulmonary function, respiratory strength and peak cough flow in persons with cervical spinal cord injury

  • An, Sang-Kyun;Shin, Won-Seob
    • Physical Therapy Rehabilitation Science
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    • 제7권4호
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    • pp.147-153
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    • 2018
  • Objective: This study investigated the effects of air stacking training (AST) on pulmonary function, respiratory strength, and peak cough flow (PCF) in persons with cervical spinal cord injury (CSCI). Design: Randomized controlled trial. Methods: A total of 24 persons with CSCI were randomly allocated to the AST group (n=12) or the incentive spirometry training (IST) group (n=12). Patients with CSCI received AST or IST for 15 minutes, with 3 sessions per week for 4 weeks, and all groups performed basic exercises for 15 minutes. In the AST group, after the subject inhaled the maximal amount of air as best as possible, the therapist insufflated additional air into the patient's lung using an oral nasal mask about 2-3 times. In the IST group, patients were allowed to hold for three seconds at the maximum inspiration and then to breathe. The pre and post-tests measured forced vital capacity (FVC), forced expiratory volume one at second (FEV1), maximal expiratory pressure (MEP), maximal inspiratory pressure (MIP) and PCF. Results: Both groups showed significant improvements in FVC, FEV1, MEP, MIP and PCF values after training (p<0.05). The FVC in the post-test and the mean change of FVC, FEV1, MIP were significantly higher in the AST group than the IST group (p<0.05). Conclusions: The findings of this study suggested that AST significantly improved pulmonary function, respiratory strength, and PCF in persons with CSCI. Therefore, AST should be included in respiratory rehabilitation programs to improve coughing ability, pulmonary function and respiratory muscle strength.

폐쇄성 수면무호흡증에 대한 수기요법의 효과: 체계적 문헌고찰을 위한 프로토콜 (Effects of Manual Therapy on Obstructive Sleep Apnea: Study Protocol for a Systematic Review)

  • 박지원;김관일
    • 한방재활의학과학회지
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    • 제34권3호
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    • pp.65-74
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    • 2024
  • Objectives This study aims to establish a protocol for a systematic review to evaluate the effectiveness and safety of manual therapy (MT) for obstructive sleep apnea (OSA). Methods We will conduct a search for relevant randomized controlled trials using seven databases, including MEDLINE/PubMed, Embase, and the Cochrane Central Register of Controlled Trials. The study includes patients with OSA treated with MT. Comparators include all other treatments excluding MT. The primary outcome is the apnea-hypopnea index; secondary outcomes include mean peripheral oxygen saturation, snoring index, quality of sleep, quality of life, peak nasal inspiratory flow, and adverse events. Results Two independent researchers will select studies based on inclusion criteria and extract necessary data. Risk of bias (RoB) will be assessed using the Cochrane RoB 2.0 tool. Meta-analysis will be conducted if there are two or more studies with the same outcome measure; otherwise, a qualitative analysis will be performed. Subgroup analysis will be conducted based on the type of MT, and evidence certainty will be evaluated using the Grading of Recommendations Assessment, Development, and Evaluation approach. Conclusions This study will evaluate the effect of MT on OSA. By systematically reviewing various MTs, it aims to refine application methods in clinical practice and provide a foundation for future research.