apanese Journal ofJapanese Journal of Clinical Oncology,2023,1-16Clinical Oncologyhttps://doi.org/10.1093/jjco/hyad042Original ArticleOXFORDOriginal ArticleA revision of JPOS/JASCC clinical guidelines fordelirium in adult cancer patients:a summary ofrecommendation statementsYoshinobu Matsuda1,Hitoshi Tanimukai2,Shinichiro Inoue3,Takatoshi Hirayama4,Yusuke Kanno5,Yuichi Kitauras,Shuji Inada,Koji Sugano,Masafumi Yoshimura,Saki Harashima10,Saho Wada11Takaaki Hasegawa12,Yoshiaki Okamoto13,Chikako Dotani14,Mari Takeuchi15,Jun Kako16,Ryoichi Sadahiro,Yasuhiro Kishi17,Megumi Uchida18,Asao Ogawa19,Masatoshi Inagaki20 andToru Okuyama21.*Department of Psychosomatic Internal Medicine,Kinki-Chuo Chest Medical Center,Sakai,Japan,2Faculty ofHuman Health Sciences,Graduate School of Medicine,Kyoto University,Kyoto,Japan,3Department ofNeuropsychiatry,Okayama University Hospital,Dentistry,and Pharmaceutical Science,Okayama,Japan,Department of Psycho-Oncology,National Cancer Center Hospital,Tokyo,Japan,5Department of Home Health andPalliative Care Nursing,Graduate School of Health Care Sciences,Tokyo Medical and Dental University,Tokyo,Japan,Department of Psychiatry,Panasonic Health Insurance Organization Matsushita Memorial Hospital,Moriguchi,Japan,Department of Psychosomatic Medicine,Faculty of Medicine,Kindai University,Osaka-Sayama,Japan,Division of Respiratory Medicine,Juntendo Tokyo Koto Geriatric Medical Center,Tokyo,Japan,Department of Occupational Therapy,Faculty of Rehabilitation,Kansai Medical University,Hirakata,Japan,Department of Stress Sciences and Psychosomatic Medicine,Graduate School of Medicine,The University ofTokyo,Tokyo,Japan,"Department of Neuropsychiatry,Nippon Medical School Tamanagayama Hospital,Tokyo,Japan,12Center for Psycho-oncology and Palliative Care,Nagoya City University Hospital,Nagoya,Japan,Department of pharmacy,Ashiya Municipal Hospital,Ashiya,Japan,Department of Pediatrics,The University ofTokyo Hospital,Tokyo,Japan,5Department of Neuropsychiatry,Keio University School of Medicine,Tokyo,Japan,1 College of Nursing Art and Science,University of Hyogo,Akashi,Japan,Department of Psychiatry,NipponMedical School Musashikosugi Hospital,Kawasaki,Japan,Department of Psychiatry and Cognitive-BehavioralMedicine,Nagoya City University Graduate School of MedicalSciences,Nagoya,Japan,1Division ofPsycho-Oncology,Exploratory Oncology Research and Clinical Trial Center,National Cancer Center,Kashiwa,Japan,2Department of Psychiatry,Faculty of Medicine,Shimane University,Izumo,Japan and 2 Department ofPsychiatry/Palliative Care Center,Nagoya City University West Medical Center,Nagoya,Japan*For reprints and all correspondence:Toru Okuyama,Department of Psychiatry/Palliative Care Center,Nagoya CityUniversity West Medical Center,1-1-1,Hirate-cho,Kita-ku,Nagoya 462-8508,Japan.E-mail:okuyama@med.nagoya-cu.ac.jpReceived 2 February 2023;Editorial Decision 24 April 2023;Accepted 26 April 2023AbstractObjective:The Japanese Psycho-Oncology Society and the