> ## Content Index > Fetch the complete content index at: https://psychedelicmentalhealth.net/llms.txt > Use this file to discover other available public pages before exploring further. # Ketamine Reduces Suicidality-Associated Emergency Department Utilization in Patients With Treatment-Resistant Depression: A 6-Month Mirror-Image Study (Patarroyo-Rodriguez, et al, 2025) - URL: https://psychedelicmentalhealth.net/ketamine-reduces-suicidality-associated-emergency-department-utilization-in-patients-with-treatment-resistant-depression-a-6-month-mirror-image-study-patarroyo-rodriguez-et-al-2025/ - Published: 2025-09-18T17:18:04.000Z - Updated: 2025-09-18T17:18:04.000Z - Description: La ketamina reduce la utilización del departamento de emergencias asociada a la suicidabilidad en pacientes con depresión resistente al tratamiento: un estudio de imagen especular de 6 meses - Author: Michael DeMarco, PhD - Tags: ketamine, iv ketamine, suicidality, depression treatment, ketamine therapy, ketamine research, psychedelic research, psychedelics, ketamine therapy treatment [Ketamine Reduces Suicidality-Associated Emergency Department Utilization in Patients With Treatment-Resistant Depression: A 6-Month Mirror-Image Study - PubMedBackground: Short-term studies have demonstrated antisuicidal effects of ketamine/esketamine for patients with treatment-resistant depression (TRD). However, long-term data and their impact in reducing suicidality-related health care utilization are limited. This 6-month mirror-image study co …![](https://storage.ghost.io/c/61/a8/61a8484e-df24-47fb-903c-d012ff10c983/content/images/icon/favicon-192-103.png)PubMedLiliana Patarroyo-Rodriguez![](https://storage.ghost.io/c/61/a8/61a8484e-df24-47fb-903c-d012ff10c983/content/images/thumbnail/pubmed-meta-image-v2-102.jpg)](https://pubmed.ncbi.nlm.nih.gov/40965838/) (2025): "The cohort was 69% female, with a median age of 48.9 years; 97% had major depressive disorder, and most (75%) received IV ketamine. After the acute treatment phase, ED visits for suicidal ideation decreased by 84% (IRR=0.16, 95% CI, 0.06-0.46, **P*\=.001), and total ED visits for suicidality decreased by 63% (IRR=0.37, 95% CI, 0.18-0.77, **P*\=.007)." "La cohorte era del 69% de mujeres, con una mediana de edad de 48,9 años; el 97% tenía trastorno depresivo mayor, y la mayoría (75%) recibía ketamina intravenosa. Después de la fase de tratamiento agudo, las visitas de disfunción eréctil para la ideación suicida disminuyeron en un 84% (IRR=0,16, 95% IC, 0,06-0,46, p=0,001) y las visitas totales de DE para la suicidio disminuyeron en un 63%"