scholarly journals Ventilatory function among healthy young Saudi adults: a comparison with Caucasian reference values

2011 ◽  
Vol 5 (1) ◽  
pp. 157-161
Author(s):  
Ahmad H. Alghadir ◽  
Farag A. Aly
Keyword(s):  
Lung Function ◽  
Reference Values ◽  
Objective Measure ◽  
Forced Expiratory Volume ◽  
Lung Function Tests ◽  
Prediction Equations ◽  
Mean Values ◽  
Function Tests ◽  
Predicted Values ◽  
Maximal Voluntary Ventilation

Abstract Background: Ethnic differences in lung function are recognized. However, most of the modern lung function equipments are pre-programmed with Caucasian reference values. Objective: Measure spirometric values among healthy Saudi male and female adults and compare with the Caucasian reference values in a standard spirometer. Methods: Thirty healthy Saudi young adults (15 males and 15 females; mean age 25 years) participated in this study. Forced vital capacity (FVC), forced expiratory volume in one second (FEV1), FEV1/FVC (%), and maximal voluntary ventilation (MVV) were recorded using a portable digital spirometer. Results: Mean values of FVC, FEV1, FEV1/FVC (%) and MVV for the Saudi subjects were significantly lower than the Caucasians predicted values. Conclusion: Interpretation of lung function tests of Saudi subjects based on the Caucasian prediction equations is generally not valid, as the parameters of lung function tests in Saudi subjects are lower than the Caucasian reference values. The present results underline an urgent need for larger studies to develop prediction equations based on normative spirometric values for Saudi population involving subjects of all ages and both genders living in different climates of the country.

scholarly journals Prevalence of diaphragmatic muscle weakness and dyspnoea in Graves' disease and their reversibility with carbimazole therapy

2002 ◽  
pp. 299-303 ◽  
Author(s):  
R Goswami ◽  
R Guleria ◽  
AK Gupta ◽  
N Gupta ◽  
RK Marwaha ◽  
...  
Keyword(s):  
Lung Function ◽  
Muscle Weakness ◽  
Forced Expiratory Volume ◽  
Clinical Severity ◽  
Diaphragm Muscle ◽  
Graves Disease ◽  
Lung Function Tests ◽  
Diaphragmatic Muscle ◽  
Function Tests ◽  
Diaphragmatic Movement

OBJECTIVES: Dyspnoea is a common complaint among patients with thyrotoxicosis. However, its causative mechanisms have not been identified. We assessed the role of thoracic diaphragmatic muscle weakness in dyspnoea among patients with active Graves' disease. METHODS: Twenty-seven patients (19 female, 8 male) with active Graves' disease were assessed for the clinical severity of dyspnoea, functional (pressure generating capacity) and anatomical aspects (thickness and excursion) of the diaphragm at presentation. The severity of dyspnoea was assessed using a visual analogue scale (VAS) and the 6 min walk test. Lung function tests, diaphragmatic strength (sniff oesophageal pressure, SniffP(oeso)), maximum inspiratory and expiratory pressures, diaphragmatic thickness and movements on real time ultrasonography were evaluated during normal and deep respiration. Twenty of the 27 patients were reassessed after achieving euthyroidism with carbimazole therapy at a mean interval of 5+/-2 months. RESULTS: Reevaluation after carbimazole therapy revealed a significant reduction in dyspnoea on the VAS (59+/-26 to 23+/-13%). Patients covered a similar distance during the 6 min walk before and after euthyroidism. Significant improvement was observed in the vital capacity (2.57+/-0.62 to 2.94+/-0.60 l), forced expiratory volume in the first second (2.21+/-0.49 to 2.45+/-0.47 l), total lung capacity (3.57+/-1.19 to 4.1+/-1.12 l), diaphragmatic movement during deep respiration (5.5+/-1.0 to 6.6+/-1.1 cm) and SniffP(oeso) (68.7+/-23 to 93.1+/-25.2 cmH(2)O). There was no significant change in the distance walked in 6 min, tidal volume, lung diffusion capacity and diaphragmatic thickness. There was no significant correlation between the net change in dyspnoea score and net change in lung function tests, diaphragmatic movement and SniffP(oeso). CONCLUSIONS: Significant functional weakness of diaphragm muscle is present in patients with active Graves' disease. This weakness is more marked during a maximal respiratory manoeuvre, indicating a diminished diaphragmatic reserve which could be the cause of dyspnoea observed on exertion among patients with thyrotoxicosis.

scholarly journals Reference values for lung function tests: I. Static volumes

1999 ◽  
Vol 32 (6) ◽  
pp. 703-717 ◽  
Author(s):  
J.A. Neder ◽  
S. Andreoni ◽  
A. Castelo-Filho ◽  
L.E. Nery
Keyword(s):  
Lung Function ◽  
Reference Values ◽  
Lung Function Tests ◽  
Function Tests

scholarly journals Chest assessment and simple lung function tests

1980 ◽  
Vol 36 (4) ◽  
pp. 93-96
Author(s):  
C. P. Rodseth
Keyword(s):  
Lung Function ◽  
Peak Expiratory Flow ◽  
Flow Rate ◽  
Forced Vital Capacity ◽  
Peak Expiratory Flow Rate ◽  
Vital Capacity ◽  
Forced Expiratory Volume ◽  
Lung Function Tests ◽  
Testing Laboratories ◽  
Function Tests

The main elements of a chest assessment are outlined. Elementary measurements which should be taken by physiotherapists are described. Simple lung function tests which are within the capability of physiotherapists who are closely concerned with chest patients are explained in some detail. The tests concerned are: Peak Expiratory Flow Rate, Forced Vital Capacity, Forced Expiratory Volume in 1 sec. and the ratio Forced Expiratory Volume in 1 sec./Forced Vital Capacity as a percentage. Four of the more advanced tests and their underlying concepts which are more the domain of special pulmonary testing laboratories are briefly described.

Is there any difference in pulmonary testing parameters due to spirometry reference values? A study in adolescents with idiopathic scoliosis

2021 ◽  
Author(s):  
K Politarczyk ◽  
Ł Stepniak ◽  
M Kozinoga ◽  
T Kotwicki
Keyword(s):  
Lung Function ◽  
Idiopathic Scoliosis ◽  
Cobb Angle ◽  
Reference Values ◽  
Forced Vital Capacity ◽  
Subgroup Analysis ◽  
Forced Expiratory Volume ◽  
Radiographic Evaluation ◽  
Significant Difference ◽  
Predicted Values

The Global Lung Function Initiative (GLI 2012) presented multi-ethnic spirometry reference values that are recommended to be used instead previous Zapletals’ reference values. The study aimed to compare the values of the pulmonary parameters calculated according to the Zapletals’ versus the GLI 2012 reference values in adolescents with idiopathic scoliosis. Preoperative pulmonary testing and radiographic evaluation were performed in 39 adolescents (29 females, 10 males) aged 12–17 years. The thoracic Cobb angle ranged 50°–104°. Forced vital capacity (FVC) and forced expiratory volume in one second (FEV1) were measured. The percentages of predicted values of FVC (%FVC) and the FEV1 (%FEV1) were calculated according to the Zapletals’ reference values and to the GLI 2012 reference values. The subgroup analysis was performed for the subjects with Cobb curve 50°–74° (N=26) versus the subjects with Cobb curve 75°–104° (N=13). Mean %FVC was significantly higher using the Zapletals’ reference values 86.1%±16.4 versus 84.6%±15.6 using the GLI 2012 reference values, p=0.0116. Mean %FEV1 was significantly higher using the Zapletals’ reference values 84.5%±18.2 versus 80.0%±16.3 using GLI 2012 reference values, p=0.000001. The subgroup analysis revealed significant difference of %FVC in moderate (p=0.033974) and no difference in severe curves (p=0.1993). The %FEV1 differences were significant in both moderate (p=0.000011) and severe curves (p=0.0334). The study demonstrated that a significant difference might be observed in the spirometry parameters due to the applied reference values. These differences might be taken into account during the spirometry examination interpretation.

A Review on Functions of Rakt Dhatu and Prana Vayu to Establish Lung Function Capacity

2018 ◽  
Vol 3 (01) ◽  
Author(s):  
Dr. Vishal Shamrao Patil ◽  
Dr. (Mrs.) Manisha V. Bhalsing
Keyword(s):  
Lung Function ◽  
Functional Status ◽  
Respiratory System ◽  
Lung Function Tests ◽  
Lung Volumes ◽  
Happy Life ◽  
Pathological Conditions ◽  
Function Tests ◽  
Forced Breathing

Lung function tests are useful in assessing the functional status of Respiratory system in both in physiological as well as pathological conditions. These are based on the measurement of volume of air breathed in and out in quite breathing & forced breathing. Air in lungs is classified in to two divisions’ lung volumes & lung capacities. Lung Capacities are the combination of two or more lung volumes. The concept of Rakt Dhatu & Vayu is important in case of respiration because Charaka says that pure blood provides the person with strength, luster & happy life because vital breath follows blood. It represents mechanism of oxygenated & deoxygenated blood & its relation with functioning capacity of Lungs. So In this article attempt has been made to review concepts regarding functions of Rakt Dhatu & Vayu to Establish Lung Function Capacity.

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