• thoracoscopy;
  • thoracotomy;
  • lung lobectomy;
  • lung cancer;
  • dog

Objective— To report use of thoracoscopic lung lobectomy (TLL) for treatment of lung tumors (LT) in dogs.

Study Design— Retrospective study.

Animals— Nine dogs.

Methods— Dogs that had TLL for tumor removal were included. Using general anesthesia and 1-lung ventilation, TLL was performed using a 30–60 mm endoscopic gastrointestinal anastomosis stapler. If the visual field was obscured, lobe resection was completed via thoracotomy.

Results— Metastatic and primary LT were resected by thoracoscopic lobectomy in 9 dogs (6 male, 3 female; mean (±SD) weight, 29±7 kg; mean age, 10.7±1.9 years). Six dogs had a solitary mass and 3 dogs had 2 masses within a single lobe. The left caudal lobe was removed in 3 dogs. In 5 dogs, TLL was used alone whereas conversion to thoracotomy was required in 4 dogs because of poor visibility. There were 7 metastatic LT and 2 primary LT. Mean duration of thoracoscopic surgery was 108.8±30.3 minutes compared with 150.75±55.4 minutes in dogs requiring conversion to thoracotomy. Mean hospitalization was 3.1±1.3 days.

Conclusion— Provided the visual field is not obscured, TLL can be performed effectively in dogs.

Clinical Relevance— Dogs with metastatic or primary LTs should be considered for TLL, particularly for small masses positioned away from the hilus in the left caudal lung lobe.