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Supplement: The Minimally Invasive Thoracic Surgery Summit

Wedge Resection and Brachytherapy for Lung Cancer in Patients With Poor Pulmonary Function

^a Department of Thoracic Surgery, Cedars-Sinai Medical Center, Los Angeles, California
^b The University of Pennsylvania, Philadelphia, Pennsylvania

^_* Address correspondence to Dr McKenna, Cedars-Sinai Medical Center, 8635 W Third, Ste 975W, Los Angeles, CA 90048 (Email: mckennar{at}cshs.org).

Presented at the Minimally Invasive Thoracic Surgery Summit, New York, NY, June 8–9, 2007.

Background: Although lobectomy is the standard for lung cancer because a wedge resection has a 3 to 5 times greater incidence of local recurrence, poor pulmonary function may preclude lobectomy. For these patients, low-dose-rate brachytherapy has recently been used to decrease local recurrence after sublobar resection. Current techniques expose operating room personnel and patient contacts to unnecessary radioactivity risks. We present our technique of sublobar resection combined with afterload catheters for high-dose-rate brachytherapy for patient benefit with minimal risk to others.

Methods: Forty-eight patients (25 women, 23 men) underwent wedge resection, node dissection, and brachytherapy. A remote-afterloading high-dose-rate unit for radiation produced a median dose of 2450 cGy (350 cGy per fraction over 7 fractions twice daily for 4 days). The dose was prescribed to 1 cm deep to the stapled line. Biologically, this dose is approximately 5000 cGy and above (180 cGy/d equivalent) at the depth of 5 mm in reference to the resection margin.

Results: Two patients died. The length of mean stay was 5.5 days (median, 5 days). Complications included prolonged air leak in 5 patients, atrial fibrillation in 5, pneumonia in 3, trapped lung in 2, and 1 each with empyema, bleeding, and recurrent laryngeal nerve injury. Three patients required a blood transfusion. Within the follow-up of 1 to 27 months, there were four recurrences.

Conclusions: Wedge resection and brachytherapy appears to be a reasonable treatment for patients with lung cancer and pulmonary function that prohibits a lobectomy.