RESUMEN
OBJECTIVES: The aim of this study was to assess the applicability of knowledge discovery in database methodology, based upon data mining techniques, to the investigation of lung cancer surgery. METHODS: According to CRISP 1.0 methodology, a data mining (DM) project was developed on a data warehouse containing records for 501 patients operated on for lung cancer with curative intention. The modelling technique was logistic regression. RESULTS: The finally selected model presented the following values: sensitivity 9.68%, specificity 100%, global precision 94.02%, positive predictive value 100% and negative predictive value 93.98% for a cut-off point set at 0.5. A receiver operating characteristic (ROC) curve was constructed. The area under the curve (CI 95%) was 0.817 (0.740- 0.893) (p < 0.05). Statistical association with perioperative mortality was found for the following variables [odds ratio (CI 95%)]: age over 70 [2.3822 (1.0338-5.4891)], heart disease [2.4875 (1.0089-6.1334)], peripheral arterial disease [5.7705 (1.9296-17.2570)], pneumonectomy [3.6199 (1.4939-8.7715)] and length of surgery (min) [1.0067 (1.0008-1.0126)]. CONCLUSIONS: The CRISP-DM process model is very suitable for lung cancer surgery analysis, improving decision making as well as knowledge and quality management.
Asunto(s)
Minería de Datos , Toma de Decisiones , Conocimiento , Neoplasias Pulmonares/cirugía , Modelos Teóricos , Procedimientos Quirúrgicos Pulmonares , Calidad de la Atención de Salud/normas , Adulto , Anciano , Anciano de 80 o más Años , Femenino , Humanos , Modelos Logísticos , Masculino , Persona de Mediana Edad , Valor Predictivo de las Pruebas , Curva ROC , Factores de RiesgoRESUMEN
Typical carcinoid bronchial tumour is a well-known disease that, for years, was considered benign. Currently, it is classified within the group of neuro-endocrine lung tumours. It is a low-grade malignancy tumour with a capability of local and distant recurrence. Complete resection with mediastinal lymphadenectomy is the treatment-of-choice. There are, usually, long-term survivors, even in cases of recurrence or mediastinal node invasion. These patients could benefit from removal of recurrent or metastatic disease. We present, here, a case of a 19-years-old female diagnosed as having N1-bronchial typical carcinoid tumour. She underwent radical surgery, but with mediastinal recurrence and hepatic metastases. A new radical lung resection was performed, and a liver transplant was the therapy-of-choice for the metastatic lesion.