1790 Use of a Spreadsheet Program to Calculate Pediatric Pulmonary Function Normal Values

A previously described comprehensive respiratory information system (CRIS) has been changed to introduce new spirometric tests which are sensitive to minor abnormalities, revise on the basis of additional data the regression equations which define normal values to various parameters of pulmonary function and refine the system’s interpretation scheme. The beneficial effects of transferring the system from a large IBM 360/65 to a small CDC 1700 are presented. An analysis of the costs of processing routine pulmonary function studies reveals that a 40°/o saving is realized when a computer is used in comparison to the use of the usual manual methods.

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Fully automatic quantitative assessment of emphysema in computed tomography: comparison with pulmonary function testing and normal values

European Radiology ◽

10.1007/s00330-009-1437-z ◽

2009 ◽

Vol 19 (10) ◽

pp. 2391-2402 ◽

Cited By ~ 62

Author(s):

C. P. Heussel ◽

F. J. F. Herth ◽

J. Kappes ◽

R. Hantusch ◽

S. Hartlieb ◽

...

Keyword(s):

Computed Tomography ◽

Pulmonary Function ◽

Quantitative Assessment ◽

Normal Values ◽

Pulmonary Function Testing ◽

Fully Automatic ◽

Function Testing

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Prevalence of Asthma Symptoms Based on ISAAC Questionnaire and Pulmonary Function Tests in Cotton Ginnery Workers in Gezira State

Journal of Immunology and Allergy ◽

10.37191/mapsci-2582-6549-1(2)-012 ◽

2020 ◽

Author(s):

Ibrahim A Ali

Keyword(s):

Pulmonary Function ◽

Occupational Asthma ◽

Normal Values ◽

Pulmonary Function Tests ◽

Statistical Significance ◽

International Study ◽

P Value ◽

Chest Tightness ◽

Asthma Symptoms ◽

Cotton Gin

Background: The prevalence of asthma symptoms in the adult Sudanese population was found to be 10% according to the international study of asthma and allergies in childhood (ISAAC) questionnaire and was more than that in dusty working places. Occupational asthma is caused by breathing chemical fumes, gases, dust or other substances on the job. More than 250 workplace substances have been identified as possible causes of occupational asthma. These include animal substances, chemicals, enzymes, metals, plant substances, and respiratory irritants. Exposure to airborne asthma triggers can cause permanent lung destruction, byssinosis and resulting in disability or death. Objectives: The aim of this study is to evaluate the prevalence of asthma symptoms in cotton gin workers in Gezira state, Sudan. Methods: This is a cross-sectional study conducted in cotton ginnery in Rufaa - al-Gezira State in the middle of Sudan; to evaluate the prevalence of asthma symptoms in cotton gin workers. The aim of the study was explained to all participants after taking their consent and the modified international study of asthma and allergies in childhood (ISAAC) questionnaire was used and had been filled by 60 workers. Pulmonary function test (PFT) also had been done for them and the results were compared with the normal values for each participant. A T-test was used to compare the statistical significance (P-value ?0.05 was considered statistically significant). Results: (43) of the participants were males and (17) were females. Analysis of data revealed that (13.3%) had to wheeze in the last 12 months, and (3.3%) had chest tightness early morning. Also (3.3%) had an episode of chest tightness which awakes them from sleeping. The forced expiratory volume in the first second and the forced vital capacity were significantly lower than the Sudanese normal values. Conclusion: The prevalence of asthma symptoms in cotton gin workers is higher than the general population with lower lung function values. Further big-scale studies are recommended to be done.

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PHYSIOLOGY OF THE RESPIRATORY SYSTEM, SIGNIFICANT SPECIES DIFFERENCES, MEASUREMENTS OF PULMONARY FUNCTION, NORMAL VALUES AND SIGNIFICANCE OF VARIATIONS FROM NORMAL

Veterinary Surgery ◽

10.1111/j.1532-950x.1973.tb01519.x ◽

1973 ◽

Vol 2 (2) ◽

pp. 26-26

Author(s):

J.R. Gillespie

Keyword(s):

Pulmonary Function ◽

Respiratory System ◽

Species Differences ◽

Normal Values

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Pattern of Pulmonary Dysfunctions in Craniovertebral Junction Anomaly and Its Persistence after Rigid Occipitocervical Fixation

Indian Journal of Neurosurgery ◽

10.1055/s-0040-1712064 ◽

2020 ◽

Vol 9 (03) ◽

pp. 157-161

Author(s):

Shaam Bodeliwala ◽

Vikas Nagar ◽

Hukum Singh ◽

Daljit Singh ◽

Anita Jagetia ◽

...

Keyword(s):

Pulmonary Function ◽

Normal Values ◽

Pulmonary Function Tests ◽

Craniovertebral Junction ◽

Forced Expiratory Volume ◽

Early Postoperative Period ◽

Mean Values ◽

Restrictive Lung Disease ◽

Occipitocervical Fixation ◽

The Mean

Abstract Introduction Despite a significant advancement in operative techniques of occipitocervical fixation, there is a poor postoperative patient outcome. This can be attributed to restrictive lung pattern in craniovertebral junction anomalies (CVJAs) patients resulting from repeated trauma to cervicomedullary junction by the pincer action of the bony anomalies and compression of the brainstem. We evaluate the changes in pulmonary function tests (PFTs) following rigid occipitocervical fixation in CVJA. Methods PFTs of 20 CVJA patients were measured pre and postoperatively using spirometry. Measurements included forced vital capacity (FVC), forced expiratory volume in one second (FEV1), maximum forced mid-expiratory flow rate (FEF25–75%), and ratio of FEV1 and FVC (FEV1%). The parameters were compared with the predicted normal values based on their age and sex. PFTs were repeated on the seventh postoperative day. McCormick grading was used to assess neurological function. Results The values of PFTs in the preoperative period were significantly lower than predicted normal values. The mean values of FVC, FEV1, FEF25–75% were 72, 68, and 71% of their mean predicted values, with FEV1% in the range of 70 to 95% with a mean of 81.4%. Postoperatively there was further significant reduction in the mean values of FVC, FEV1, FEF25–75%, and FEV1% compared with the preoperative values. There was neurological improvement in McCormick grades of patients postoperatively (from grade III and IV to grade II). Conclusion A significant restrictive lung disease is present in patients of CVJA, even though not clinically apparent, and it persists in the early postoperative period. However, a long-term follow-up is required to assess whether pulmonary function parameters improve subsequently.

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Prediction of Normal Values in Pulmonary Function Testing

Clinics in Chest Medicine ◽

10.1016/s0272-5231(21)00616-x ◽

1989 ◽

Vol 10 (2) ◽

pp. 135-143

Author(s):

Jack L. Clausen

Keyword(s):

Pulmonary Function ◽

Normal Values ◽

Pulmonary Function Testing ◽

Function Testing

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Lung: Another Victim of the Silent killer Diabetes- A Cross-sectional Study

JOURNAL FOR CLINICAL AND DIAGNOSTIC RESEARCH ◽

10.7860/jcdr/2020/46048.14382 ◽

2020 ◽

Author(s):

Tirthankar Mukherjee ◽

SR Sneha ◽

NS Vinayaka

Keyword(s):

Pulmonary Function ◽

Normal Values ◽

Microvascular Complications ◽

Cross Sectional Study ◽

Diabetic Patients ◽

Sectional Study ◽

Cross Sectional ◽

Diffusion Capacity ◽

Duration Of Diabetes

Introduction: Diabetes is a multisystem disorder with well known complications involving various organs in the body. The presence of abundant connective tissue and microvasculature raises the possibility that lung may also be affected in diabetes. Aim: To evaluate the pulmonary function parameters in patients with diabetes mellitus and to determine their correlation with glycaemic control, duration of diabetes and other microvascular complications. Materials and Methods: This is a cross-sectional study done between September 2018 and March 2019. A total of 300 type 2 diabetic patients, aged 30-70 years, with duration of diabetes more than 1 year, were included in the study. Thorough history was taken regarding the duration of diabetes and symptoms of the complications. All of them were evaluated for diabetic microangiopathies: nephropathy (by 24 hour urinary protein excretion), retinopathy (by direct ophthalmoscopy) and neuropathy (by clinical examination). Glycosylated Haemoglobin (HbA1c) was measured as an indicator of glycaemic control. Spirometry and single breath diffusion capacity for carbon monoxide were performed on all the subjects. Pulmonary Function Test (PFT) parameters of each subject were compared with the normal values. Unpaired t-test and one-way analysis of variance (ANOVA) were used. Correlation and regression studies were used to find out the strength of association between Diffusing Capacity of the Lungs for Carbon Monoxide (DLCO) and the following: the duration of disease, HbA1c and presence of other microvascular complications. Results: Pulmonary function parameters like Forced Expiratory Volume in first second (FEV1), Forced Vital Capacity (FVC), Peak Expiratory Forced Rate (PEFR) and DLCO were below the normal values in 53% of diabetic patients included in the study. Majority of them had a restrictive ventilation pattern. The diffusion capacity corrected for Alveolar Volume (VA) as measured by DLCO/VA was significantly reduced in those with longer duration of diabetes and in those with other microvascular complications. However, the poor lung functions had no correlation with the HbA1C values. Conclusion: This study demonstrated that lungs are indeed affected in patients with type 2 diabetes. The presence of extrapulmonary microangiopathy and duration of the disease may predict the incidence and the severity of the lung function abnormality.

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