scholarly journals Faal Paru Dinamis

2019 ◽  
Vol 3 (3) ◽  
pp. 89
Author(s):  
Arief Bakhtiar ◽  
Renny Irviana Eka Tantri
Keyword(s):  
Pulmonary Function ◽  
Respiratory Distress ◽  
Flow Rate ◽  
Forced Vital Capacity ◽  
Lung Development ◽  
Vital Capacity ◽  
Forced Expiratory Volume ◽  
Accuracy Level ◽  
Expiratory Flow ◽  
Central Airway

Pulmonary function is an examination to measure lung volume function using spirometry. Tests with spirometry to detect abnormalities associated with respiratory distress. Spirometry examination is not only to determine the diagnosis but also to assess the severity of obstruction, restriction, and the effects of treatment. Spirometry examination is a test to measure the volume of a person’s static and dynamic lungs with a spirometer tool. Dynamic lung spirometry consists of Forced vital capacity (FVC), Forced expiratory volume (FEVT), Forced expiratory flow200-1200 / FEF 200-1200, Forced expiratory flow25% -75% / FEF 25% -75%, Peak expiratory flow rate / PEFR, Maximum voluntary ventilation / MVV / MBC, FEV1 / FVC Ratio. Ventilation disorders consist of: restriction and obstruction disorders. Restriction is a disorder of lung development by any cause. In obstruction disorder, it shows a decrease in velocity of expiratory flow and normal vital capacity. FEV values, which are widely used are FEV1 / FVC, abnormal when <80%, FEV1 / FVC ratio <80%. This parameter is very important because the accuracy level for obstruction in the central airway is quite large. In obstructive disorder there is generally a decrease in pulmonary dynamic volume. Significant parameters are FEV 1 / FVC, PEFR, and FEF 25-75. The FEV1 / FVC ratio is important because the accuracy level for obstruction in the central airway is considerable, whereas FEF 25-75 indicates obstruction in the small airway.

Pulmonary function in men after oxygen breathing at 3.0 ATA for 3.5 h

1991 ◽  
Vol 71 (3) ◽  
pp. 878-885 ◽  
Author(s):  
J. M. Clark ◽  
R. M. Jackson ◽  
C. J. Lambertsen ◽  
R. Gelfand ◽  
W. D. Hiller ◽  
...  
Keyword(s):  
Pulmonary Function ◽  
Forced Vital Capacity ◽  
Vital Capacity ◽  
Large Change ◽  
Forced Expiratory Volume ◽  
Diffusing Capacity ◽  
Mild Degree ◽  
Oxygen Breathing ◽  
Multiple Organs ◽  
Expiratory Flow

As a pulmonary component of Predictive Studies V, designed to determine O2 tolerance of multiple organs and systems in humans at 3.0–1.5 ATA, pulmonary function was evaluated at 1.0 ATA in 13 healthy men before and after O2 exposure at 3.0 ATA for 3.5 h. Measurements included flow-volume loops, spirometry, and airway resistance (Raw) (n = 12); CO diffusing capacity (n = 11); closing volumes (n = 6); and air vs. HeO2 forced vital capacity maneuvers (n = 5). Chest discomfort, cough, and dyspnea were experienced during exposure in mild degree by most subjects. Mean forced expiratory volume in 1 s (FEV1) and forced expiratory flow at 25–75% of vital capacity (FEF25–75) were significantly reduced postexposure by 5.9 and 11.8%, respectively, whereas forced vital capacity was not significantly changed. The average difference in maximum midexpiratory flow rates at 50% vital capacity on air and HeO2 was significantly reduced postexposure by 18%. Raw and CO diffusing capacity were not changed postexposure. The relatively large change in FEF25–75 compared with FEV1, the reduction in density dependence of flow, and the normal Raw postexposure are all consistent with flow limitation in peripheral airways as a major cause of the observed reduction in expiratory flow. Postexposure pulmonary function changes in one subject who convulsed at 3.0 h of exposure are compared with corresponding average changes in 12 subjects who did not convulse.

scholarly journals Forced vital capacity (FVC), peaked expiratory flow rate (PEFR), are additional parameters in the assessment of the reversibility test.

2018 ◽  
Vol 60 (1) ◽  
pp. 24-27
Author(s):  
Mustafa N. Abd Ali ◽  
Ahmed H. Jasim ◽  
Abdulrasool N. Nassr ◽  
Monqith A. Kaddish
Keyword(s):  
Pulmonary Function ◽  
Airway Obstruction ◽  
Flow Rate ◽  
Forced Vital Capacity ◽  
Social Order ◽  
Vital Capacity ◽  
Chronic Obstructive ◽  
P Value ◽  
Cross Sectional ◽  
Expiratory Flow

Background: Spirometry is an important test performed in patients expect to have airway obstruction, assessment of intense reaction to inhalers (the trial of reversibility of airway blockade) is a normally utilized technique in clinical and academic studies. The consequences of this test are utilized to take choices on treatment, consideration, exclusion from diagnosis and other research think about, and for analytic marking [asthma versus chronic obstructive airway disease (COPD)]. Usually, the (FEV1) or (FVC) standards before and after giving of the bronchodilator are compared and the adjustment is processed to distinguish variations from the norm in lung volumes and air flow.Objective: The aim of this study was to investigate the effectiveness of FVC and PEFR as further constraints to evaluate bronchodilator reaction in asthmatic peoples with severe or moderate airflow blockade.Patients and methods: This study is cross sectional study performed in Baghdad teaching hospital where one hundred patient were enrolled in this study patients were detected with asthma and confirm airway blockade according to (GINA) guide lines. The pulmonary function for all members was investigated with a convenient spirometer (spiro-lab3 Spirometer) as stated by those measures from claiming American thoracic particular social order, The mean and standard deviation results of the predicted% values pulmonary function test were also used for comparisons were measured by t-test. A p-value of ≤ 0.05 considered to be significant statistically.Results: The post bronchodilator (post –BD) results of FVC, PEFR are greater than pre- bronchodilator where are statistically significant P value = 0.00. the amount of the changes of FVC post (BD) was more than 400ml from pre (BD) and the amount of the changes of PEFR post (BD) more than 1000ml from the pre (BD) both were p-value = 0.00.Conclusion: The asthmatic patients with moderate and severe airway obstruction, we observed that FVC and PEFR is a valuable important limit to FEV1 to evaluate reversibility reactionKeyword: forced vital capacity(FVC), peaked expiratory flow rate (PEFR), spirometry and forced expiratory volume in 1st second (FEV1). السعة الحيويه القصوى ومعدل الجريان الزفيري الاعلى وصفات اضافية في تقييم اختبار المعاكسه القصبيه أ.د. مصطفى نعمه عبد علي  احمد حسين جاسم عبد الرسول نوري نصر منقذ عبد المحسن كاظم  الخلاصه : خلفية البحث : ان جهاز قياس التنفس هو وسيله لقياس تضيق المجاري الهوائية ومدى استجابتها لموسع القصبات عند التشخيص للحالات السريريه , وفي تحديد نوع العلاج , وفي التمييز بين الربو القصبي وانسداد القصبات المزمن . في هذا البحث تم قياس السعة الحيويه القصوى والحجم الزفيري الاعلى في الثانيه وذلك قبل وبعد اعطاء موسع القصبات وقياس الفرق في الحالات الطبيعيه لحجوم الرئه وجريان الهواء فيها . هدف البحث : استخدام عنصر السعة الحيويه القصوى وعنصر معدل الجريان الزفيري الاعلى كعوامل اضافية لتقييم اختبار توسع القصبات في مرضىالربو القصبي ذوي تضيق القصبات المتوسط والشديد. المرضى وطرق العمل:اجريت دراسه مقطعيه في مستشفى بغداد التعليمي على 100 مريض يعانون من الربو مع تضيق المجاري الهوائية حسب التصنيف العالمي (GINA) , وقد اجريت لهم وظائف الرئه  . تم استخدام اختبار - testt و    p – value على مستوى معنويه اقل او يساوي 0.05. النتائج : اظهرت نتائج السعة الحيويه ومعدل الجريان الزفيري الاعلى بعد اعطاء موسع القصبات هي اكبر من قبل اعطائه مع قيمة p- value  تساوي صفر .كما ان معدل التغيير للسعة الحيويه بعد اعطاء موسع القصبات كانت اكثر من 400ml من قبل اعطاء موسع القصبات . وقد بلغ  معدل التغيير في الجريان  الزفيري الاعلى بعد اعطاء موسع القصبات اكثر من 1000ml بالمقارنة ما قبل اعطاء موسع القصبات , وكانت p- value تساوي صفر . الاستنتاج : في هذا البحث ,كانت السعة الحيويه القصوى ومعدل الجريان الزفيري الاعلى لمرضى الربو  القصبي ذات قيمه مهمه لدعم الحجم الزفيري الاقصى في الثانية الاولى لتقييم تفاعل المعاكسة  لتوسع القصبات . مفتاح الكلمات : السعه الحيوية القصوى , معدل الجريان الزفيري الاعلى , جهاز قياس التنفس , لحجم الزفيري الاقصى في الثانية الاولى 

In-brace alterations of pulmonary functions in adolescents wearing a brace for idiopathic scoliosis

2019 ◽  
Vol 43 (4) ◽  
pp. 434-439 ◽  
Author(s):  
Gozde Yagci ◽  
Gokhan Demirkiran ◽  
Yavuz Yakut
Keyword(s):  
Idiopathic Scoliosis ◽  
Pulmonary Function ◽  
Peak Expiratory Flow ◽  
Forced Vital Capacity ◽  
Respiratory Muscle ◽  
Vital Capacity ◽  
Forced Expiratory Volume ◽  
Pulmonary Functions ◽  
Significant Difference ◽  
Expiratory Flow

Background:Despite the common use of braces to prevent curve progression in idiopathic scoliosis, their functional effects on respiratory mechanics have not been widely studied.Objective:The objective was to determine the effects of bracing on pulmonary function in idiopathic scoliosis.Methods:A total of 27 adolescents with a mean age of 14.5 ± 1.5 years and idiopathic scoliosis were included in the study. Pulmonary function evaluation included vital capacity, forced expiratory volume, forced vital capacity, maximum ventilator volume, peak expiratory flow, and respiratory muscle strengths, measured with a spirometer, and patient-reported degree of dyspnea. The tests were performed once prior to bracing and at 1 month after bracing (while the patients wore the brace).Results:Compared with the unbraced condition, vital capacity, forced expiratory volume, forced vital capacity, maximum ventilator volume, and peak expiratory flow values decreased and dyspnea increased in the braced condition. Respiratory muscle strength was under the norm in both unbraced and braced conditions, while no significant difference was found for these parameters between the two conditions.Conclusion:The spinal brace for idiopathic scoliosis tended to reduce pulmonary functions and increase dyspnea symptoms (when wearing a brace) in this study. Special attention should be paid in-brace effects on pulmonary functions in idiopathic scoliosis.Clinical relevanceBracing seems to mimic restrictive pulmonary disease, although there is no actual disease when the brace is removed. This study suggests that bracing may result in a deterioration of pulmonary function when adolescents with idiopathic scoliosis are wearing a brace.

Effects of low concentrations of chlorine on pulmonary function in humans

1983 ◽  
Vol 54 (4) ◽  
pp. 1120-1124 ◽  
Author(s):  
H. H. Rotman ◽  
M. J. Fliegelman ◽  
T. Moore ◽  
R. G. Smith ◽  
D. M. Anglen ◽  
...  
Keyword(s):  
Pulmonary Function ◽  
Flow Rate ◽  
Vital Capacity ◽  
Nitrogen Concentration ◽  
Forced Expiratory Volume ◽  
Base Line ◽  
Percent Change ◽  
Low Concentrations ◽  
Sham Exposure ◽  
Expiratory Flow

Eight healthy unacclimated volunteers were exposed to chlorine gas in concentrations of 0.5 or 1 ppm, and several pulmonary function measurements were made. Comparisons were made by paired t test between the percent change from base-line values obtained at various times after chlorine exposure and the percent change from base line at analogous times after a sham exposure. With the sham vs. 0.5-ppm exposure, there were trivial changes observed. Total lung capacity (TLC) was lower before 0.5-ppm exposure than before sham exposure, and the percent decrease in carbon dioxide pulmonary diffusing capacity was smaller 24 h after 0.5-ppm exposure than 24 h after sham exposure. With the sham vs. 1-ppm exposure, there were many differences in percent change from base line that were significant at the P less than 0.05 level or better. These were in forced vital capacity (FVC), forced expiratory volume at 1 s (FEV1), peak expiratory flow rate (PEFR), forced expiratory flow rate at 50 and 25% vital capacity (FEF50 and FEF25, respectively), and airway resistance (Raw). There were, in addition, significant changes after only 4 h of exposure. These were in FEV1, PEFR, FEF50, FEF25, TLC, Raw, and the difference in nitrogen concentration. Most of the test results had returned to normal by the next day. We conclude that even though chlorine at low concentrations does not produce any serious subjective symptoms, it adversely affects pulmonary function transiently.

scholarly journals Pulmonary functions in car air conditioner users and non-air conditioner users in tertiary care centre, South Tamilnadu, India

2019 ◽  
Vol 7 (9) ◽  
pp. 3510
Author(s):  
Hoshea Jeba Ruth S. ◽  
Lisha Vincent
Keyword(s):  
Pulmonary Function ◽  
Forced Vital Capacity ◽  
Vital Capacity ◽  
Pulmonary Function Tests ◽  
Forced Expiratory Volume ◽  
Control Group ◽  
Air Conditioner ◽  
Air Conditioners ◽  
Function Tests ◽  
Expiratory Flow

Background: Air conditioners are used extensively these days of the modern lifestyle. Inhalation of cold dry air while using Air conditioners causes bronchoconstriction due to which alteration may occur in pulmonary function. This study was aimed to compare the Pulmonary Function tests of Car AC users and non AC users. Methods: The Study included 52 employees not exposed to car air conditioner as a control (group I) and 52 employees exposed to car air conditioner  with minimum exposure of 1 hour per day for 6 months as a subject (group II). Pulmonary function tests were performed using computerised spirometer. Statistical analysis was done by unpaired t test.Results: Age, Height and weight are not statistically significant between study group and control group. Forced vital capacity, forced expiratory volume in 1 second, Ratio of Forced vital capacity and Forced expiratory volume in 1 second, Inspiratory reserve volume, Expiratory reserve volume, Maximum voluntary ventilation are decreased in car air conditioner users compared to non-users, but was not significant. Forced expiratory flow (FEF), Peak expiratory flow rate (PEFR) values shows statistically significant decreased in car air conditioner users.Conclusions: The present study shows hyper-responsive airways on exposure to cold air which leads to bronchoconstriction. The significant decrease in PEFR, FEF suggest that upper airways as well as smaller airways are affected on exposure to car AC. So, Exposure to car Air Conditioner leads to risk of developing respiratory dysfunction.

Pulmonary Function Testing Reference Values and Interpretations in Pediatric Training Programs

PEDIATRICS ◽  
1990 ◽  
Vol 85 (5) ◽  
pp. 768-773
Author(s):  
Edward N. Pattishall
Keyword(s):  
Pulmonary Function ◽  
Statistical Methods ◽  
Forced Vital Capacity ◽  
Vital Capacity ◽  
Training Programs ◽  
Pulmonary Function Tests ◽  
Forced Expiratory Volume ◽  
Reference Standards ◽  
Forced Expiratory Flow ◽  
Expiratory Flow

A questionnaire was sent to all pediatric training programs to evaluate the use of pulmonary function reference standards and the interpretation of pulmonary function test results. Responses were obtained from 107 of 130 institutions, and 94 of these had pulmonary function laboratories available. Of the 94, 60 used one of three reference standards. The primary reason the reference standards were chosen was either unknown or because they came with the spirometer (24), were recommended by another person or were those used in that person's training (34), or were thought to be the best standards available or most applicable to the population to be tested (31). To define abnormality, most used an 80% predicted cutoff for forced vital capacity, forced expiratory volume in 1 second, and forced expiratory flow at 25% to 75% vital capacity. For a change in an individual through time, most used a 10% change for forced vital capacity, forced expiratory volume in 1 second, and forced expiratory flow at 25% to 75% vital capacity. Thirteen used statistical methods to define abnormal individuals and none used statistical methods to define a significant change over time. Although there are a few guidelines for reference standards and interpretations of pulmonary function tests, it appears that most laboratories are not using those guidelines and that further guidelines and education are needed.

Assessment of factors affecting short-term pulmonary functions following cardiac surgery: A prospective observational study

2021 ◽  
pp. 021849232110100
Author(s):  
Neetika Katiyar ◽  
Sandeep Negi ◽  
Sunder Lal Negi ◽  
Goverdhan Dutt Puri ◽  
Shyam Kumar Singh Thingnam
Keyword(s):  
Cardiac Surgery ◽  
Pulmonary Function ◽  
Forced Vital Capacity ◽  
Vital Capacity ◽  
Forced Expiratory Volume ◽  
Pulmonary Complications ◽  
Operative Morbidity ◽  
Factors Affecting ◽  
Factors Influencing ◽  
Significant Impairment

Background Pulmonary complications after cardiac surgery are very common and lead to an increased incidence of post-operative morbidity and mortality. Several factors, either modifiable or non-modifiable, may contribute to the associated unfavorable consequences related to pulmonary function. This study was aimed to investigate the degree of alteration and factors influencing pulmonary function (forced expiratory volume in one second (FEV1) and forced vital capacity), on third, fifth, and seventh post-operative days following cardiac surgery. Methods This study was executed in 71 patients who underwent on-pump cardiac surgery. Pulmonary function was assessed before surgery and on the third, fifth, and seventh post-operative days. Data including surgical details, information about risk factors, and assessment of pulmonary function were obtained. Results The FEV1 and forced vital capacity were significantly impaired on post-operative days 3, 5, and 7 compared to pre-operative values. The reduction in FEV1 was 41%, 29%, and 16% and in forced vital capacity was 42%, 29%, and 19% consecutively on post-operative days 3, 5, and 7. Multivariate analysis was done to detect the factors influencing post-operative FEV1 and forced vital capacity. Discussion This study observed a significant impairment in FEV1 and forced vital capacity, which did not completely recover by the seventh post-operative day. Different factors affecting post-operative FEV1 and forced vital capacity were pre-operative FEV1, age ≥60, less body surface area, lower pre-operative chest expansion at the axillary level, and having more duration of cardiopulmonary bypass during surgery. Presence of these factors enhances the chance of developing post-operative pulmonary complications.

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