Renal damage caused by hemolysis during cardiopulmonary bypass (CPB) was investigated, and the preventive effects of haptoglobin in regard to this condition was also evaluated. Nineteen patients who underwent open heart surgery were divided into two groups: a control group (n=11) and a haptoglobin group (n=8). In the control group, the level of plasma-free hemoglobin increased significantly after CPB (p<0.01), and this level was strongly correlated with renal tubular leaking enzymes: NAG (r=0.76) and γ-GTP (r=0.81), in the Intensive Care Unit or on the first day after surgery. On the contrary, in the haptoglobin group, in which 4, 000 units of haptoglobin was added in the priming solution of CPB, no increased level of plasma free hemoglobin was observed. Furthermore, leak age of renal tubular enzymes were statistically less (p<0.05). It was concluded that free hemoglobin was a cause of renal damage during CPB and the damage was preventable by the administration of haptoglobin.

Background: Ameloblastic carcinoma is a malignant form of ameloblastoma and a very rare odontogenic tumor. We report a case of ameloblastic carcinoma that occurred after removal of a right-sided mandibular dental implant.Case presentation A 72-year-old female patient visited her family dentist with a complaint of pain around a lower right implant placed 37 years previously. Although the dental implant was removed with the diagnosis of periimplantitis, the patient experienced dullness of sensation in the lower lip and was followed up by her dentist, but after no improvement. She was referred to a highly specialized institution where she was diagnosed with osteomyelitis and treated the patient with medication; however, there was no improvement. In addition, granulation was observed in the same area leading to a suspicion of malignancy, and the patient was referred to our oral cancer center. The diagnosis of squamous cell carcinoma was made after a biopsy at our hospital. Under general anesthesia, the patient underwent mandibulectomy, right-sided neck dissection, free flap reconstruction with an anterolateral thigh flap, immediate reconstruction with a metal plate, and tracheostomy. Histological analysis of the resected specimen on hematoxylin and eosin staining showed structures reminiscent of enamel pulp and squamous epithelium in the center of the tumor. The tumor cells were highly atypical, with nuclear staining, hypertrophy, irregular nuclear size, and irregular nuclear shape, all of which were suggestive of cancer. Immunohistochemical analysis showed that Ki-67 was expressed in more than 80% of the targeted area, and the final diagnosis was primary ameloblastic carcinoma. Conclusion After reconstructive flap transplantation, occlusion was re-established using a maxillofacial prosthesis.The patient remained disease-free at the 1-year 3-month follow-up.

Objective: There have been reports of health hazards caused by medical devices, cosmetics, quasi-drugs, daily necessities, hygiene products, etc. (health-related products) sold in pharmacies and drugstores. However, the role pharmacists play in dealing with the health hazards caused by health-related products has not been clarified. Therefore, we conducted a survey on the cases of health hazards related to health-related products and the views of pharmacists.Methods: A questionnaire was administered anonymously by email to 601 pharmacists working in community pharmacies or drugstores between December 11 and 20, 2019.Results: The number of valid responses was 585. The breakdown of health hazard cases where pharmacists counseled customers were 60 for medical devices, 31 for cosmetics, 18 for quasi-drugs, 9 for hygiene products, and 20 for daily necessities and others. Of those 138 cases, 19 cases of medical devices were estimated to have an intermediate risk as a health hazard, and the other 119 cases were all classified as low. Of the cases that the pharmacists were not approached for help, but were aware of, 57 were medical devices (21 high, 31 intermediate, 5 low), 44 were cosmetics (12 intermediate, 32 low), 12 were quasi-drugs (7 intermediate, 5 low), 7 were hygiene products (7 low), and 64 were daily necessities and others (26 high, 34 intermediate, 4 low). With regard to health-related products, 95% of the respondents indicated that they had responded to customer questions with advice.Conclusion: Our results show that there are various cases that could develop into health hazards due to health-related products, and most respondents felt a need to alert the public. As such, pharmacists and other staffs in drugstores will continue to provide health support functions to their customers by advising them on not only pharmaceuticals but also these health-related products.