Catatonic Syndrome in Adult Patients at Basurto Hospital: A Descriptive Study of Incidence, Comorbidity, and Short-Term Outcomes

Inclusion Criteria * Age ≥ 18 years at the time of hospital care. * Diagnosis of catatonic syndrome established according to DSM-5 criteria. * Patients attended at Basurto University Hospital in any clinical setting, including the Emergency Department or inpatient physical or psychiatric units. * Diagnosis made during the study period, from 1 January 2024 to 31 December 2025. * Catatonia of any etiology, including psychiatric, neurological, medical, metabolic, toxic, or autoimmune causes. * Provision of informed consent by the patient or their legal representative, when clinically feasible; deferred consent accepted in cases of acute catatonia. Exclusion Criteria * Refusal to participate in the study by the patient or their legal representative. * Withdrawal of informed consent at any point during the study.