RESUMEN
BACKGROUND: It is suggested that hot electrocoagulation-enabled forceps (hot biopsy) may reduce hemorrhage risk after the biopsy in endobronchial tumors. The main concern in this method is possible reduction of the specimen's quality. OBJECTIVES: To compare the procedure related hemorrhage with hot biopsy and conventional forceps biopsy and the diagnostic quality of the obtained specimens with either technique. METHODS: In this prospective study, assessment of the biopsy samples and quantity of hemorrhage were done in a blind fashion. At first, for each patient a definite clinical diagnosis was made based on pathologic examination of all available samples, clinical data, and imaging findings. Then, second pathologist reviewed all samples to evaluate the quality of the samples. RESULTS: A total of 36 patients with endobronchial lesions were included in this study. Definite diagnosis was made in 83% of the patients. Diagnostic yield of the two methods were not statistically different, while the mean hemorrhage grades of all hot biopsy protocols were significantly lower as compared to that of conventional biopsy (p=0.003, p<0.001 and p<0.001 for 10,20and40 voltages respectively). No significant difference was detected between the qualities of specimens obtained by hot biopsy methods in comparison with conventional biopsy (p>0.05 for all three voltages). CONCLUSIONS: Hot biopsy can be a valuable alternative to forceps biopsy in evaluating endobronchial lesions.
Asunto(s)
Biopsia/instrumentación , Neoplasias de los Bronquios/patología , Broncoscopía/instrumentación , Electrocoagulación/instrumentación , Adulto , Anciano , Anciano de 80 o más Años , Biopsia/métodos , Neoplasias de los Bronquios/diagnóstico , Broncoscopía/métodos , Electrocoagulación/métodos , Femenino , Humanos , Masculino , Persona de Mediana Edad , Valor Predictivo de las Pruebas , Estudios Prospectivos , Sensibilidad y Especificidad , Instrumentos QuirúrgicosRESUMEN
Small cell lung cancer (SCLC) is considered as a disease with poor prognosis and early metastasis with a very short survival. Endobronchial involvement is fairly common finding in SCLC and can cause respiratory symptoms. In this report we present a 47-year-old man diagnosed with small cell lung cancer. In the disease course, primary involvement of right bronchus spread to left bronchus and carina. Scheduled sessions of bronchoscopic interventions with electrocautery and argon plasma coagulation were used to maintain his large airways open. The intrabronchial interventions were accompanied by six courses of cisplatin-based chemotherapy as a standard treatment. Although patient's definite diagnosis was extensive SCLC, he remained in a good condition for 5 years. In last year of his follow up, headache and dizziness were added to his occasional respiratory symptoms. Brain MRI identified metastatic lesion in his brain. Hence, brain radiotherapy was suggested, but he refused further aggressive treatment. Seven months later, he died of brain metastatic lesion. Considering long survival of this patient with adequate and proper scheduled endobronchial interventions along with standard courses of chemotherapy, we conclude that this combined treatment strategy in patients with endobronchial involvement might increase survival.