Costo-efectividad de toracotomía versus videotoracoscopia en pacientes con cáncer de pulmón de célula no pequeña en estadio I

Introduction: Patients with non-small cell lung cancer stage I may undergo VATS or open thoracotomy. The aim of this study was to determine the cost effectiveness of these two alternatives. Methods: A cost-effectiveness study was conducted by using a tree model with an extended Markov decision process. A perspective of public Colombian health system was adopted. The outcomes were measured in life-years saved, which were obtained from systematic reviews of survival analysis. The direct medical costs of providers and insurers of three cities in Colombia were included. The time horizon was 10 years with discount rates of 3.5% and 6%. The model was evaluated using Monte Carlo simulation with 10,000 iterations. Results: The expected average total costs of thoracotomy and thoracoscopy were COP $ 22.831.299 (95% ICr: 22.773.228-22.889.370) and $ 16.955.369 (95% ICr: 16.920.215-16.990.523) respectively. The number of saved life-years for thoracotomy were 7.85 saved LY (95% ICr: 7.84-7.86) and for VATS were 9.24 LYS (95% ICr: 9.23-9.25). The thoracotomy was dominated by VATS for willingness to pay between COP $ 15 million to $ 45 million. Discussion: The videothoracoscopy dominated open thoracotomy in the treatment of patients with non-small cell lung cancer stage I for different willingness to pay in the Colombian health system.