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Quantitative and qualitative analyses of a caring family are needed to improve home care. We propose a three-dimensional quantitative evaluation of family functioning. The first dimension is food, clothing, and shelter; the second dimension is patient, medical, and caring conditions; and the third dimension is the caring family condition. We used the home care score and Family Adaptability and Cohesion Evaluation Scale at Kwansei Gakuin(FACESKG)IV for the quantitative evaluation of family functioning. Narrative medicine and ethnography are valuable for the qualitative evaluation of a caring family.

We report our experiences of 2 cases of successful pain management at home by using opioid rotation from a fentanyl preparation to a continuous subcutaneous injection of morphine hydrochloride, at a dose less than the equivalent dose based on the conversion table. Our experiences also suggested that opioid rotation according to the conversion ratios might be associated with the risk of delay in the detection of adverse reactions to opioid overdose in patients under home care, whose conditions cannot be checked frequently by health care providers.

Theophylline toxicity has been recognized since its introduction into clinical medicine. Clarithromycin is a new oral macrolide antibiotic with excellent antibacterial activity and rare adverse effect. Patients with upper respiratory infection are often treated with theophylline and clarithromycin concurrently. We report a case of acute renal failure due to acute rhabdomyolysis caused by the interaction of theophylline and clarithromycin. A 72-year-old man visited our hospital because of coughing and a sore throat continuing for 1 week. He was diagnosed as having the common cold with a bronchial asthmatic symptom and was prescribed 200 mg/day of sustained-release theophylline for the treatment of asthma for 7 days. One week later, he visited our hospital again. Radiographic study of the chest revealed mild interstitial pneumonia and 200 mg/day of sustained-release theophylline and 400 mg/day of clarithromycin were administrated concomitantly. Five days after the second visit, the patient was admitted to our hospital because of generalized twitching, muscular weakness, high fever and serious general condition. He experienced generalized muscular twitching and tremor. Blood urea nitrogen was 106.1 mg/dl, serum creatinine was 7.4 mg/dl, serum creatinine kinase (CK) was 36,000 IU/l (normal 15-130 IU/l), CK isozyme revealed the following ratio: BB 0%, MB 1% and MM 99%. He was diagnosed as having acute renal failure with rhabdomyolysis caused by the interaction of theophylline and clarithromycin. Hemodialysis therapy was started. After 5 weeks, his serum creatinine was markedly decreased. It is well-known that clarithromycin enhances the serum concentration of theophylline by inhibition of the cytochrome P450-dependent pathway in hepatocytes. Theophylline toxicity may be enhanced when clarithromycin is administrated concomitantly, especially to elderly patients with dehydration.