Journal Information
Vol. 29. Issue 8.
Pages 391-396 (November - December 1993)
Share
Share
Download PDF
More article options
Vol. 29. Issue 8.
Pages 391-396 (November - December 1993)
Full text access
Morfología de la vertiente espiratoria de la curva de flujo-volumen en sujetos sanos, fumadores y no fumadores
Shape of the maximal expiratory flow-volume curve in healthy subjects, smokers and non smokers
Visits
4023
S.J. Carrizo*, J.M. Marín
Sección de Neumología. Hospital Miguel Servet. Zaragoza
This item has received
Article information
Abstract
Bibliography
Download PDF
Statistics

Para caracterizar las implicaciones de los cambios de la morfología de la curva flujo-volumen en su vertiente espiratoria sobre sujetos sanos, se han estudiado prospectivamente 150 personas: edad 32±12; varones/mujeres 67/83; fumadores (F)/no fumadores (NF) 63/87. Ningún sujeto padecía enfermedad crónica incluyendo neumopatías. Tras historia y exploración clínica detalladas, incluyendo cuestionario epidemiológico de semiología respiratoria, se practicó espirometría con curva de flujo-volumen y se determinó en ésta la morfología de la vertiente espiratoria de la curva de flujo-volumen (MEFV) mediante el cálculo del ángulo beta. Los valores medios de función pulmonar fueron similares en ambos grupos (F y NF). Los NF no demuestran ningún parámetro anormal, mientras que 4 F asintomáticos (11%) y 8 F (15%) con algún síntoma respiratorio presentan algún parámetro fuera del rango de normalidad. El ángulo beta fue inferior a 180° (LIN) en 3 F asintomáticos (8,6%) y en 41 F sintomáticos (79%). La cantidad acumulada de consumo de tabaco se relacionó inversamente con el valor de beta. Se concluye que la determinación de la MEFV presenta un valor discriminativo mayor que cualquier parámetro aislado de función pulmonar para evaluar el efecto del tabaco sobre la mecánica del vaciado pulmonar.

To determine the implications of changes in the maximal expiratory flow-volume (MEFV) curve in healthy subjects, 150 people were studied prospectively [32±12 yr; 67 men, 83 women; 63 smokers (S), 87 non smokers (NS)[. None suffered chronic or lung disease. Following physical examination and taking of a patient history that included an epidemiological questionnaire on respiratory symptoms, spirometry was carried out and a flow-volume curve plotted to determine MEFV by calculation of p angles. Means of pulmonary function were similar in both S and NS groups. No abnormal parameters were found in NS, while 4 (11%) asymptomatic S and 8 (15%) S with some respiratory symptoms presented some paremeters outside the normal range. The p angle was smaller than 180° (lower limit of normal) in 3 (8.6%) asymptomatic S and in 41 (79%) symptomatic S. Accumulated tobacco consumption was inversely correlated with the p angle. We conclude that MEFV discriminates more accurately than any other single pulmonary function parameter in assessing the effect of tobacco on the mechanics of lung emptying.

Full text is only aviable in PDF
Bibliografía
[1.]
R.E. Hyatt, L.F. Black.
The flow-volume curve: A current perspective.
Am Rev Res Dis, 107 (1973), pp. 191-199
[2.]
P.T. Macklem, M.R. Becklake.
The relationship between the mechanical and diffusing properties of the lung in health and disease.
Am Rev Resp Dis, 87 (1963), pp. 47
[3.]
J.T. Olive Jr., R.E. Hyatt.
Maximal expiratory ñow and total respiratory resistance during induced bronchoconstriction in asthmatic subjects.
Am Rev Resp Dis, 106 (1972), pp. 366
[4.]
R.D. Miller, R.E. Hyatt.
Obstructing lesions of the larynx and trachea: Clinical and physiologic characteristics.
Mayo Clin Proc, 44 (1969), pp. 145
[5.]
W.G. Vincken, M.G. Elleker, M.G. Cosío.
Flow-volume loop changes reflecting respiratory muscle weakness in chronic neuromuscular disorders.
Am J Med, 83 (1987), pp. 673-680
[6.]
W.G. Vincken, H. Ghezzo, M.G. Cosío.
Maximal static respiratory pressures in adults: Normal values and their relationship to determinants of respiratory function.
Bull Eur Physiopathol Respir, 23 (1987), pp. 435-439
[7.]
M.H. Sanders, R.J. Martin, B.E. Pennock, R.M. Rogers.
The detection of sleep apnea in the awake patients.
The “saw-Tooth” sign. JAMA, 245 (1981), pp. 2.414-2.418
[8.]
V. Hoffstein, S. Wright, N. Zamel.
Flow-volume curves in snoring patients with and without obstructive sleep apnea.
Am Rev Resp Dis, 139 (1989), pp. 957-960
[9.]
N.L. Lapp, R.E. Hyatt.
Some factors affecting the relationship of maximal expiratory flow to lung volume in health and disease.
Dis Chest, 51 (1967), pp. 475-481
[10.]
M.C. Kapp, E.N. Schachter, G.J. Beck, L.R. Maunder, T.J. Witek.
The shape of the maximum expiratory flow volume curve.
Chest, 94 (1988), pp. 799-806
[11.]
B.G. Ferris.
Epidemiology standarization proyect.
Am Rev Resp Dis, 118 (1978), pp. 1-120
[12.]
J. Sanchis Aldás.
Normativa para la espirometría forzada.
Recomendaciones S. E. P. A. R. -l, Ed. Doyma, (1985),
[13.]
H. Tammeling.
Standarized lung function testing.
Report Working Party. European Community for Coal and Steel. Bull Europ Physiopath Resp, 19 (1983), pp. 7-95
[14.]
The Health Consequences of Smoking: Chronic Obstructive Lung Disease.
A report of the surgeon general.
Publication 8450205 U.S. Department of Health and Human Services. Public Health Service, (1984),
[15.]
D.S. McCarthy, D.B. Craig, R.M. Cherniack.
Effect of modification of the smoking habit on lung function.
Am Rev Resp Dis, 114 (1976), pp. 103-113
[16.]
J.C. Hogg, P.T. Macklem, W.M. Thurlbeck.
Site and nature of airway obstruction in chronic obstructive lung disease.
N Engl J Med, 282 (1970), pp. 1.355-1.360
[17.]
J.C. Hogg, J. Williams, B. Richarson.
Age as a factor in the distribution of lower airway conductance and the patologic anatomy of obstructive lung disease.
N Engl J Med, 282 (1970), pp. 1.2831.287
[18.]
G.J. Beck, G.A. Doyle, E.N. Schachter.
Smoking and lung function.
Am Rev Resp Dis, 123 (1981), pp. 149-155
[19.]
American college of chest physicians, American thoracic society: Pulmonary terms, symbols:, A., report of the, ACCP-ATS., Joint committee on pulmonary nomenclature.
Chest, 67 (1975), pp. 583-593
[20.]
B.G. Ferris.
Epidemiology standarization proyect.
Am Rev Resp Dis, 118 (1978), pp. 1-120
[21.]
B.G. Ferris, I.T.T. Higgins, M.W. Higgins.
Chronic nonespecific respiratory disease in Berlin.
New Hampshire. 1961 to 1967. A follow-up study. Am Rev Resp Dis, 107 (1973), pp. 110-122
[22.]
G.W. Comstock, W.J. Brownlow, R.W. Stone.
Cigarette smoking and changes in respiratory fmdings.
Arch Environ Health, 21 (1970), pp. 50-57
[23.]
M.W. Higgins, M. Kjelsberg.
Characteristics of smokers and nonsmokers in Tecumseh. Michigan. The distribution of selected physical measurements and physiologic variables and the prevalence of certain diseases in smokers and nonsmokers.
Am J Epidemiol, 86 (1967), pp. 60-77
[24.]
J.L. Malo, P. Leblanc.
Functional abnormalities in young asymptomatic smokers with special reference to flow volume curves breathing various gases.
Am Rev Resp Dis, 111 (1975), pp. 623-629
[25.]
G.M. Cochrane, F. Prieto, T.J.H. Clark.
Intrasubject variability of maximal expiratory flow volume curve.
Thorax, 32 (1977), pp. 171-176
[26.]
M. Green, J. Mead, F. Hoppin, M.E. Wohl.
Analysis of the forced expiratory manoeuvre.
Chest, 63 (1973), pp. 33-36
[27.]
R.J. Knudson, D.F. Clark, T.C. Kennedy, D. Knudson.
Effect of aging alone on mechanical properties of the normal adult human lung.
J Appl Physiol: Respirat Environ Exercise Physiol, 43 (1977), pp. 1.062-1.064
[28.]
J.E. Seely, E. Zuskin, A. Bouhuys.
Cigarette smoking: Objective evidence for lung damage in teen-agers.
Science, 172 (1971), pp. 741-743
[29.]
J.M. Peters, B.G. Ferris.
Smoking pulmonary function, and respiratory symptoms in college-age group.
Am Rev Resp Dis, 95 (1967), pp. 774
[30.]
N.L. Lapp, R.E. Hyatt.
Evaluation of lung mechanics in epidemiologic studies.
Bull Physiopathol Resp, 6 (1970), pp. 595
[31.]
B. Burrows, R.J. Knudson, M.G. Cline, M.D. Lebowitz.
Quantitative relationships between cigarette smoking and ventilatory function.
Am Rev Resp Dis, 115 (1977), pp. 195-205
Copyright © 1993. Sociedad Española de Neumología y Cirugía Torácica
Archivos de Bronconeumología
Article options
Tools

Are you a health professional able to prescribe or dispense drugs?