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Postoperative pulmonary function in children. Comparison of scoliosis with peripheral surgery
Insights
Pediatric patients undergoing major reconstructive surgery experience significant reductions in lung volumes, particularly vital capacity, for up to eight days post-operation. Peripheral surgery patients showed no significant lung volume changes.
Area of Science:
- Pediatric Surgery
- Respiratory Physiology
- Pulmonary Function Testing
Background:
- Postoperative pulmonary complications are a concern in pediatric surgical patients.
- Understanding the impact of surgery type on lung function is crucial for patient management.
Purpose of the Study:
- To assess changes in lung volumes and forced expirograms in pediatric patients following surgery.
- To compare the effects of peripheral versus reconstructive surgery on postoperative respiratory function.
Main Methods:
- Measurement of lung volumes, forced expirograms, and arterial blood gases.
- Comparison of preoperative and postoperative pulmonary function in two surgical groups.
- Analysis of data from postoperative Days 1 through 8.
Main Results:
- Patients undergoing reconstructive scoliosis surgery (Group II) showed significant reductions in total lung capacity and vital capacity preoperatively.
- Postoperative vital capacity in Group II was reduced to 44% of preoperative values by Days 2-3.
- While functional residual capacity normalized by Days 5-6, vital capacity remained reduced up to Day 8 in Group II.
Conclusions:
- Postoperative lung volume abnormalities are linked to surgery site, magnitude, and pain.
- Reconstructive surgery, unlike peripheral surgery, leads to persistent reductions in vital capacity.
- Preoperative respiratory function may influence postoperative outcomes.
Abstract:
We measured lung volumes, forced expirograms, and arterial blood gases in 2 groups of elective pediatric surgical patients (mean age, 11.4 +/- SD 2.8; n = 11, 12 operations) the day prior to surgery (control) and between the first and eighth postoperative days. The patients were Group I: peripheral surgery (n = 6) and Group II: reconstructive surgery for scoliosis (n = 5). The preoperative lung volumes and forced expiratory volume in one second were within the predicted normal range in both groups, except for a reduction in total lung capacity (TLC) and vital capacity (VC) in Group II. The postoperative lung volumes in Group I were not significantly different from the preoperative volumes. In group II, on postoperative Days 2 and 3, the lung volumes as a percent of preoperative volumes (mean +/- SEM) were VC, 44 +/- 11; functional residual capacity (FRC), 81 +/- 6; residual volume, 124 +/- 10; TLC, 61 +/- 10. Although the mean FRC returned to the preoperative volume by postoperative Days 5 and 6, the VC and its components remained reduced on postoperative Days 5, 6, and 8. We conclude that postoperative lung volume abnormalities are related to the site and magnitude of surgery and associated phenomena, such as pain, and preoperative respiratory function abnormalities.
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