Pulmonary Function Before Surgery for Pectus Excavatum and at Long-term Follow-up: Comment

It is generally thought that the exercise capacity of normal subjects depends on their cardiac output. Patients with restrictive pulmonary disorders, such as pectus excavatum, may not be able to increase their ventilatory function as normal subjects can, because of restrictions in their chest wall mechanics. Several studies have presented data that pectus excavatum has a deleterious effect on cardiorespiratory function. It has also been shown that there was an increase in exercise performance, especially in an upright position, which could be attributed to favorable cardiac and hemodynamic effects of the operation, although no significant differences in work capacity were found after the operation. It is difficult to compare these studies because of differences in surgical techniques, study protocol, the lack of control groups, the relatively small number of patients, and various follow-up intervals. The possibility of subjective physical improvement secondary to psychological factors should be considered, although this relation has never been proved scientifically.
In conclusion, we performed a retrospective analysis of pulmonary function measurements on a large group of patients with long-term follow-up after surgical repair for pectus excavatum. Preoperative lung function values showed restricted pulmonary function, which was further aggravated by the operation. Canadian family pharmacy this Pulmonary complaints may correlate with coincidental obstruction, but they do not correlate with preoperative restriction of the lung function. Although the correlation between the anteroposterior diameter of the chest and static lung function parameters was significant, the correlation coefficients were low. The satisfactory subjective longterm results of most of the patients justify surgery for psychologic/cosmetic reasons. Factors other than changes in lung volumes are probably responsible for the subjective physical improvement after surgery in most patients.

This entry was posted in Pulmonary Function and tagged anteroposterior, cardiorespiratory, lung volumes, pulmonary function.