Prevalence and management of cancer pain in Srinagarind Hospital, Khon Kaen, Thailand.

OBJECTIVE: Cancer pain remains an invisible problem in cancer care and our study aimed to document its prevalence, characteristics, and patterns of management at a tertiary care teaching hospital. STUDY DESIGN: Descriptive, prospective, cohort study. MATERIAL AND METHOD: We recruited 335 consecutive adult patients diagnosed with cancers, admitted to Srinagarind Hospital, between February and April 2004. All of the participants were interviewed, and their pain evaluated by direct assessment using a numeric rating scale. RESULTS: The overall prevalence of cancer pain prior to admission was 56.5%, and within the first 24 hours of admission 41.5%. Three-quarters (74%) of patients with pain reported improvement; however one-third of those with pain never received any pain control intervention. Moreover; about half of those with persistent pain only received treatment by requesting it and then only received simple analgesics. CONCLUSION: Cancer pain remains under-detected and under-treated in many patients. Pain monitoring on a regular basis as well as a training program on pain management should be considered as first-line tools for improving pain control among cancer patients.

Diagnostic yield of adenosine deaminase in bronchoalveolar lavage.

Adenosine deaminase (ADA) activity rises in various body fluids in patients with tuberculosis. A prospective study was conducted to determine the diagnostic value of ADA activity in bronchoalveolar lavage. Between March 2001 and February 2003, 148 patients were enrolled in our study, mean age 55.6 years (SD 14.6), and a male to female ratio of 2.4:1. The mean duration of symptoms was 66.2 days. All patients were either sputum-smear negative for AFB or failed to produce sputum. The final diagnosis resulted in three patient groups: 43 with pulmonary tuberculosis, 70 malignancy, and 35 miscellaneous causes. The mean ADA activity in the bronchoalveolar lavage for the pulmonary tuberculosis, malignancy, and miscellaneous causes groups was 8.98 (95% CI, 3.79-14.17), 7.63 (95% CI, 4.12-11.14), and 11.61 U/l (95% CI, 3.59-19.62), respectively. No difference was detected in the ADA level in the pulmonary tuberculosis vs other groups (p=0.56, one-way ANOVA). A high level of ADA activity was found in non-tuberculous conditions such as bronchogenic carcinoma, pulmonary hemosiderosis, chronic pneumonia with empyema thoracis and chronic myeloid leukemia. We concluded that ADA activity in the bronchoalveolar lavage was not clearly diagnostic of smear-negative pulmonary tuberculosis. Early diagnosis required histopathology of biopsied transbronchial specimens obtained by fiberoptic bronchoscopy.