Objective: To compare the functional benefits and relative costs of adminis
tering an intense short-term inpatient vs a longer outpatient pulmonary reh
abilitation program (PRP) for patients with chronic airway obstruction (CAO
).
Design: Retrospective case-control study.
Setting: Pulmonary ward and outpatient clinic of a rehabilitation center.
Patients: Forty-three patients (case subjects) selected on the basis of sel
ection criteria were compared with control subjects matched to them for age
, sex, FEV1, and diagnosis of either COPD or asthma. Case subjects performe
d 10 to 12 daily sessions (5 sessions a week) of inpatient PRP; control sub
jects performed 20 to 24 sessions (3 sessions a week) of outpatient PRP. Me
asurements: At baseline and after the PRP, an incremental exercise test was
performed, including evaluation of dyspnea and leg fatigue by Borg scale (
D and F, respectively) at each workload step. The cost of PRP was also eval
uated.
Results: Both PRPs resulted in similar significant improvements in cycloerg
ometry peak workload (from 68 +/- 18 to 82 +/- 22 and from 75 +/- 17 to 87
+/- 27 W in case subjects and control subjects, respectively), isoload D (f
rom 6.4 +/-1.6 to 4.2 +/-1.8 for case subjects and from 8.5 +/-1.9 to 6.3 /-2.4 for control subjects) and isoload F (from 6.6 +/-1.8 to 4.2 +/-1.8 fo
r case subjects and from 8.9 +/-1.9 to 7.0 +/-1.8 for control subjects). Al
though the single daily session was less expensive, the outpatient PRP tota
l costs were greater because of the higher number of sessions and the cost
of daily transportation.
Conclusions: In patients with CAO, a shorter inpatient PRP may result in im
provement in exercise tolerance similar to a longer outpatient PRP but with
lower costs. Whether a shorter outpatient PRP may get physiologic and clin
ical benefits, while further reducing costs, must be evaluated by future co
ntrolled, randomized, prospective studies.