IMPORTANCE Although several pharmacological interventions for delirium have been investigated, their overall benefit and safety remain unclear. OBJECTIVE To evaluate evidence regarding pharmacological interventions for delirium treatment and prevention.

Preoperative anxiety strongly predicted postoperative delirium in cancer patients. Our findings suggest that preoperative anxiety may be a new target for prevention of postoperative delirium. Trial registration number This study was registered at UMIN000018980.

The finding that depressive symptoms in cancer patients decreased with age was concordant with our first hypothesis, but the second hypothesis was not supported. Younger cancer patients were vulnerable to depressive symptoms and should be monitored carefully. Further studies using more representative samples are needed to examine in detail the association between depressive symptoms and age in older cancer patients.

Background The Japanese Psycho-Oncology Society and Japanese Association of Supportive Care in Cancer recently launched the clinical practice guidelines for delirium in adult cancer patients. The aim of the guidelines was to provide evidence-based recommendations for the clinical assessment and management of delirium in cancer patients. This article reports the process of developing the guideline and summarizes the recommendations made. Methods The guidelines were developed in accordance with the Medical Information Network Distribution Service creation procedures. The guideline development group, consisting of multidisciplinary members, formulated nine clinical questions. A systematic literature search was conducted to identify relevant articles published prior to through 31 May 2016. Each article was reviewed by two independent reviewers. The level of evidence and the strength of the recommendations were graded using the grading system developed by the Medical Information Network Distribution Service, following the concept of The Grading of Recommendations Assessment, Development and Evaluation system. The modified Delphi method was used to validate the recommendation statements. Results This article provides a summary of the recommendations with rationales for each, as well as a short summary. Conclusions These guidelines will support the clinical assessment and management of delirium in cancer patients. However, additional clinical studies are warranted to further improve the management of delirium.

Compared to Western countries, fertility issues are less likely to be discussed in Japan. To increase opportunities for patients to discuss fertility issues, the ASCO guidelines should be widely understood. Additionally, these results suggest that physicians who are more likely to discuss fertility issues might feel more conflicted about whether they in fact should discuss such issues with patients with poor prognosis or insufficient time for cancer treatment.