Source: Annual Congress 2002 - Airway obstruction measurement (FOT - NEP) sleep and lung sound analysis
Disease area: Airway diseases

Abstract

The aim of our study is to assess the influence of the NEP technique on the performances of the maximal expiratory manoeuvres in elderly patients.
We applied a NEP(-5 cm and -10 cmH20) during expiratory manoeuvres on 65 successive elderly inpatients(>70 years old) and compared the values with those obtained without NEP. In this group, 15 elderly patients were unable to perform the expiratory manoeuvres, 27 had a normal function, 14 had a lung function with obstructive and 9 with a restrictive pattern
In patients with normal function, mean FVC during NEP 5 and NEP 10 compared to baseline values(without NEP) were respectively 99 ±] 14 %(ns) and 109 ±] 23 %(p=0.05). Mean FEV1 were 97 ±] 9 %(p=0.05) and 104 ±] 13 %(ns) respectively. For elderly patients with obstructive or restrictive pattern, there are also no relevant effect of the NEP application on FVC or FEV1 values. Nevertheless, during NEP10, two obstructive patients improved their FEV1 more than 20 % and four restrictive patients improved their FVC more than 20% (respectively 20.24,25,31%). Despite that significant increase, their FEV1 and FVC values remained less than 80% of predicted values and the diagnosis of pulmonary obstruction or restriction was not modified.
In conclusion: in elderly patients, the use of NEP technique during maximal expiratory manoeuvres brings little of complementary information compared to a classical manoeuvre.
(sponsored by a grant of the Lancardis Foundation).

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Citations should be made in the following way:
D. Vanpee, J. P. Delwiche, C. Swine, J. Jamart, L. Delaunois (Yvoir, Belgium). Does negative expiratory pressure (NEP) influence the performances of forced expiratory manoeuvres in elderly patient?. Eur Respir J 2002; 20: Suppl. 38, 319

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