LVRS

Co-P.I.

1995

RANDOMIZZATO

MONOCENTRICO

48 Pz

LVRS
(Lung Volume Reduction Surgery)

Sottotitolo
Chirurgia di riduzione polmonare (lung volume reduction surgery) nell'enfisema polmonare grave. Studio randomizzato condotto presso il Royal Brompton Hospital.

Disegno Studio
Prospettico randomizzato di fase III

Centro
Singolo

Anno di inizio
1995

Ruolo di Ugo Pastorino
Co-Principal Investigator

Numero di pazienti
48

Stato
Concluso

Anno di conclusione
1999


Sinossi

Although many patients with severe emphysema have undergone lung-volume-reduction surgery, the benefits are uncertain. We conducted a randomized, controlled trial of the surgery in patients with emphysema. Patients with isolated bullae were excluded because such patients are known to improve after bullectomy.

Potentially eligible patients were given intensive medical treatment and completed a smoking-cessation program and a six-week outpatient rehabilitation program before random assignment to surgery or continued medical treatment. After 15 patients had been randomized, the entry criteria were modified to exclude patients with a carbon monoxide gas-transfer value less than 30 percent of the predicted value or a shuttle-walking distance of less than 150 m, because of the deaths of 5 such patients (3 treated surgically and 2 treated medically).

Of the 174 subjects who were initially assessed, 24 were randomly assigned to continued medical treatment and 24 to surgery. At base line in both groups, the median forced expiratory volume in one second (FEV1) was 0.75 liter, and the median shuttle-walking distance was 215 m. Five patients in the surgical group (21 percent) and three patients in the medical group (12 percent) died (P=0.43). After six months, the median FEV1 had increased by 70 ml in the surgical group and decreased by 80 ml in the medical group (P=0.02). The median shuttle-walking distance increased by 50 m in the surgical group and decreased by 20 m in the medical group (P=0.02). There were similar changes on a quality-of-life scale and similar changes at 12 months of follow-up. Five of the 19 surviving patients in the surgical group had no benefit from the treatment.

In selected patients with severe emphysema, lung-volume-reduction surgery can improve FEV1, walking distance, and quality of life. Whether it reduces mortality is uncertain.



Pubblicazioni

NEJM

2000

 

IF 28.66