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Background The study will compare the efficacy and safety of nalbuphine hydrochloride injection and morphine hydrochloride injection for perioperative analgesia in tumor ablation and the differences between the two groups regarding duration of surgery, average daily dose, patient satisfaction with analgesia, quality of life, and other indicators. Furthermore, it will evaluate the clinical application of nalbuphine and morphine for perioperative analgesia in ablation surgery and provides important reference and guidance for clinical practice. Methods This is a randomized controlled study. Patients who were diagnosed by clinicians and required tumor ablation are enrolled and randomized to the experimental groups. In the test group, nalbuphine 80 mg + 0.9% normal saline (72 ml) is set in the patient-controlled analgesia pump, which is connected 15 min before ablation under electrocardiogram monitoring and surgery is performed immediately. The doses are as follows: initial,: 0.15 ml/kg,; background:, 0.5 ml/h,; compression:, 2 ml,; and lockout time:, 15 min. If the numeric rating scale is ≥ 4 points, the drug is administered by compression. The control group receives similar treatment under similar conditions as the test group except morphine (80 mg) is administered instead of nalbuphine (80 mg). The primary endpoints are the effective rate of analgesia and the incidence of adverse reactions (nausea and vomiting, dizziness, itching, constipation, hypoxemia, and urinary retention); the secondary endpoints are pain intensity, satisfaction with analgesia, duration of surgery, postoperative hospital stay, average daily dose, uninterrupted completion rate of surgery without complaints of pain, quality of life assessment, and vital signs. Discussion This study, to the best of our knowledge, is the first randomized controlled trial of nalbuphine patient-controlled analgesia in ablation surgery. Trial registration U.S. Clinical Trials Network Registration No.: NCT05073744. Registered on 11 October, 2021.

Objective: Embitterment and post-traumatic embitterment disorder (PTED) is critical, merging through different cultures. We explored the prevalence and related clinical characteristics of PTED of inpatients in a general hospital in China. Method: Two hundred inpatients (aged 18-65 years) from different departments were recruited by convenient sampling and standardized diagnostic interviews of PTED. Demographic data, Post-traumatic Embitterment Disorder Self-Rating Scale (PTED-21), the Patient Health Questionnaire depression scale (PHQ-9), Generalized Anxiety Disorder-7 (GAD-7) and the Patient Health Questionnaire depression scale (PHQ-15) were collected on all participants. Results: The prevalence of PTED was 21% (42/200) in inpatients in China; besides, the rate of increased syndromal embitterment is 28% (56/200), including 42 patients diagnosed with PTED. PTED was mainly associated with stressful events, such as illness, work and complicated interpersonal relationships. Rheumatology department