title: Bullectomy.
abstract: The aims of this study were to investigate whether a relevant functional improvement before and after bullectomy was achieved in cases of a localized bulla and generalized bullous changes early and late postoperatively and to establish clear criteria for bullectomy. For this purpose, 21 patients with a localized bulla compressing the rest of the lung, and 19 with generalized bullae with emphysematous changes of the remaining lung were examined before and after (1 1/2 months and 1 1/2 years) surgery. Comparison of the preoperative and postoperative data and the follow-up included X-ray studies with planimetric assessment of the size of the bullae, lung function tests, perfusion scintigrams and clinical findings. The preoperative and postoperative statistical values of lung volume and respiratory mechanics showed the most significant differences. Bullectomy for a localized bulla with compression of the rest of the lung led to an improvement in gas exchange and respiratory mechanics. This operation, however, produced no functional improvement in cases of generalized bullous changes. Functional and clinical success is greater, the larger and more delimited the bulla is to be seen on X-ray, the more the healthy lung tissue is compressed, and, finally, the less associated diseases such as chronic bronchitis are present. Indication for bullectomy should be limited to these cases. The size of the bulla should amount to at least 2/3 of the hemithorax, preoperative function should be clearly reduced and the patient should be suffering from dyspnea.
mesh_terms: D005500:Follow-Up Studies; D006801:Humans; D008176:Lung Volume Measurements; D008875:Middle Aged; D011184:Postoperative Period; D011656:Pulmonary Emphysema / Q000503:physiopathology / Q000601:surgery*; D012129:Respiratory Function Tests; D013997:Time Factors