# Observation Unit, Meilahti Keywords: - [emergency services](< /en/search?q=emergency services >) In the Observation Unit of Meilahti, we offer treatment for patients in need of short-term emergency care. Due to the nature of the ward’s activities, we hope that visits will be kept short. ## [ Maisa Portal (opens in new window, links to another website) ](https://www.maisa.fi/maisa/Authentication/Login?lang=britishenglish) MAISA.FI You can use our online services by signing in to the Maisa Portal. Once your treatment with us begins, you will receive information on the services you can access in Maisa. Click here to go to Maisa’s sign-in page  ## [ Patient Guide ](/en/patient/patient-guide) The Patient Guide site answer the most common questions you might have before, during, and after treatment. See Patient Guide site here  ## Contact information and opening hours #### Visiting address Meilahti Triangle Hospital Haartmaninkatu 4 Helsinki #### Postal address P.O. Box 340 00290 Helsinki ### Phone [ Phone, Phone: 09 471 77293 ]() ### Fax [ Phone, Fax: 09 4717 7290 ]() #### Visiting hours Mon–Sun 13:00–19:00 ## Find us here ### [ Meilahti Triangle Hospital ](/en/patient/hospitals-and-other-units/meilahti-triangle-hospital)  Updated: 01.04.2025 Print this page