Abstract
Purpose
The aim of this study was to evaluate the indications for pulmonary resection (lobectomy) in patients with increased total pulmonary vascular resistance (TPVR) during a preoperative unilateral pulmonary artery occlusion (UPAO) test. According to our previous report, the feasibility of performing lobectomy in patients with a high risk of cardiopulmonary complications is determined on the basis of the increase in TPVR after 15 min of obstruction during the UPAO test (occluded TPVR).
Methods
A total of 19 high-risk [occluded TPVR ≥700 dynes/s/cm−5/m2 (dynes)] patients who underwent lobectomy or pneumonectomy were studied and a detailed analysis of postoperative cardiopulmonary complications was performed. The subjects were divided into four groups based on the occluded TPVR (700–799 dynes, 800–899 dynes, 900–999 dynes, or ≥1000 dynes) to compare the incidence of postoperative complications.
Results
Two patients died after surgery. One of them had an occluded TPVR >1000 dynes and died 313 days after right upper lobectomy; the other had an occluded TPVR of 783 dynes and died 20 days after right pneumonectomy. Postoperative cardiopulmonary complications occurred in 6 of 19 patients (31.6%), and all three patients with an occluded TPVR ≥900 dynes developed cardiopulmonary complications.
Conclusion
Limited surgery should be performed in patients with an occluded TPVR ≥900 dynes.
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Nagamatsu, Y., Ohkita, A., Kimura, N.Y. et al. Retrospective investigation of pulmonary resection in patients with high total pulmonary vascular resistance during preoperative unilateral pulmonary artery occlusion. Gen Thorac Cardiovasc Surg 57, 244–249 (2009). https://doi.org/10.1007/s11748-008-0384-y
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DOI: https://doi.org/10.1007/s11748-008-0384-y