Prediction of ventilatory function after subtotal lung resection using preoperative dynamic spirometry and radiospirometry.
In 36 patients undergoing subtotal lung resection for a peripheral lung tumour (N = 20) or an inflammatory disease (N = 16) the postoperative FEV1 and VC of the operated lung were predicted on the basis of preoperative spirometric and radiospirometric studies and the number of pulmonary segments resected. For comparison, preoperative lung function studies were used in two different ways for the prediction: 1) Preoperative dynamic spirometry alone, 2) Preoperative dynamic spirometry plus radiospirometrically determined distributions of ventilation (V), perfusion (Q) and VC. The actual postoperative FEV1 and VC correlated well with the predicted values calculated from preoperative dynamic spirometry alone (r = 0.90 and 0.86, respectively). The use of the preoperative V, Q and VC proportions of the resected lung determined radiospirometrically did not improve the prediction. The results of our study suggest that preoperative radiospirometry is not always necessary for patients having a small peripheral lesion treated by subtotal lung resection.
Veneskoski
T
T
Sovijärvi
A R
AR
D000328:Adult; D000368:Aged; D005260:Female; D005541:Forced Expiratory Volume; D006801:Humans; D008168:Lung / Q000601:surgery*; D008171:Lung Diseases / Q000503:physiopathology / Q000601:surgery; D008297:Male; D008875:Middle Aged; D011300:Preoperative Care; D011379:Prognosis; D012137:Respiratory System / Q000503:physiopathology*; D013147:Spirometry / Q000379:methods; D014692:Ventilation-Perfusion Ratio; D014797:Vital Capacity