RESUMEN
BACKGROUND: Guidelines recommend multiple types of cytologic and tissue samplings in the diagnosis of lung cancer by bronchoscopy, but differences of opinion exist as to the relative value of bronchial brushings and endobronchial or transbronchial biopsies. Our objective was to determine concordance of these procedures by a test of symmetry in a historical cohort referred to the pulmonary diagnostic laboratory. METHODS: From 1988 to 2001, patients with pathologic confirmation of primary lung cancer were examined by standard bronchoscopic techniques of that period. An electronic medical record system was used, with statistical analysis of symmetry between brushings and biopsies establishing the diagnosis. RESULTS: Of 968 patients, 98% had bronchoscopy for 624 central and 322 peripheral suspect lesions. Bronchial brushings from 915 patients confirmed pulmonary malignancy in 811 (89%) patients. Endobronchial or transbronchial biopsies from 739 patients showed lung cancer in 603 (82%) cases. Bronchial washings in 16 patients and transthoracic needle biopsies in 30 patients established diagnosis. Transbronchial needle aspiration of mediastinal nodes identified metastases in 94 patients. Only 14 patients required a surgical procedure for diagnosis, but 188 received surgical excision as primary treatment. Statistical evaluation used only patients with both bronchial brushings and endobronchial or transbronchial biopsies. Analysis by a test of symmetry showed a significant difference (P<0.0001). CONCLUSIONS: Positive, suspicious, and negative specimens were consistent, with bronchial brushings being more sensitive with a lower false-negative rate than endobronchial or transbronchial biopsies. Multiple techniques are recommended for bronchoscopic confirmation of lung cancer, but bronchial brushings should be collected initially, as technical or patient limitations might preclude diagnostic tissue biopsies.
Asunto(s)
Bioestadística/métodos , Broncoscopía/métodos , Neoplasias Pulmonares/diagnóstico , Neoplasias Pulmonares/patología , Manejo de Especímenes/métodos , Adulto , Anciano , Anciano de 80 o más Años , Biopsia , Bronquios/patología , Líquido del Lavado Bronquioalveolar , Carcinoma Broncogénico/diagnóstico , Carcinoma Broncogénico/epidemiología , Carcinoma Broncogénico/patología , Femenino , Tecnología de Fibra Óptica , Fluoroscopía , Humanos , Neoplasias Pulmonares/epidemiología , Ganglios Linfáticos/patología , Masculino , Persona de Mediana Edad , Estadificación de Neoplasias , Estudios Retrospectivos , Sensibilidad y EspecificidadRESUMEN
Evidence-based practice guidelines for end-of-life care for patients with lung cancer have been previously available only from the British health-care system. Currently in this setting, there has been increasing concern in attaining control of the physical, psychological, social, and spiritual distress of the patient and family. This American College of Chest Physicians'-sponsored multidisciplinary panel has generated recommendations for improving quality of life after examining the English-language literature for answers to some of the most important questions in end-of-life care. Communication between the doctor, patient, and family is central to the active total care of patients with disease that is not responsive to curative treatment. The advance care directive, which has been slowly evolving and is presently limited in application and often circumstantially ineffective, better protects patient autonomy. The problem-solving capability of the hospital ethics committee has been poorly utilized, often due to a lack of understanding of its composition and function. Cost considerations and a sense of futility have confused caregivers as to the potentially important role of the critical care specialist in this scenario. Symptomatic and supportive care provided in a timely and consistent fashion in the hospice environment, which treats the patient and family at home, has been increasingly used, and at this time is the best model for end-of-life care in the United States.