The maximum oxygen uptake obtained by expired gas analysis during exercise testing correlates with the postoperative cardiopulmonary complication rate. On the basis of these results, esophagectomy with 3-field lymphadenectomy can be safely performed in patients with a maximum oxygen uptake of at least 800 mL. min(-1). m(-2).
The extent of recovery of exercise capacity at 1 year after surgery was approximately 95%. Furthermore, the anaerobic threshold per square meter of body surface area was restored to the preoperative level by 1 year after surgery.
Background. The optimum treatment for patients with pulmonary metastases from colorectal carcinoma is still controversial.
Methods. To evaluate the results of pulmonary resection in 22 patients with pulmonary metastases after resection of primary colorectal carcinoma, patients' characteristics were examined retrospectively. Eighteen patients had a solitary metastatic lesion and four had two lesions.
Results. Postthoracotomy recurrence occurred in 17 of the 22 patients (77.3%), and showed no correlation with the type of pulmonary resection. In 11 patients with a solitary lesion of less than 3.0cm in greatest dimension, the 3‐ and 5‐year postthoracotomy survival rates (PTSR) were 71.6% and 36.8%, respectively. Six of these patients received two or more thoracotomies for pulmonary recurrence. The 3‐year PTSR for seven patients with a solitary lesion greater than or equal to 3.0 cm was 19.0%, and for the four patients with two lesions, 25.0%. A significant difference was noted in the survival rate according to both number and size of the metastatic lesions (P < 0.05).
Conclusions. The number and size of metastatic lesions appear to be important prognostic determinants. Repeated thoracotomy can prolong survival for selected patients. Cancer 1995; 76:393–8.
The combination of expired gas analysis during exercise and conventional pulmonary function tests identified patients at risk for postoperative cardiopulmonary complications following pulmonary resection.
Hibernoma is an uncommon, benign soft tissue tumor that arises in brown adipose tissue. The computed tomography (CT) and magnetic resonance imaging (MRI) findings of hibernomas are similar to those of well-differentiated liposarcoma or angiolipoma. We report the unique appearance of a rare thoracic wall hibernoma, which appeared as a dumbbell-shaped lipomatous tumor across an intercostal region. A dynamic contrast-enhanced study on MRI revealed early enhancement, which corresponded to the branching low-signal intensity on T2-weighted images of the mass.
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