Prevalence of Sarcopenia in Patients Admitted to ICU and Its Progression During Hospitalization.

Prevalence of Sarcopenia in Patients Admitted to ICU and Its Progression During Hospitalization.

This is a prospective, observational study at the ICU of Hospital Mútua de Terrassa, running from May to December 2025. The primary goal is to determine the prevalence of sarcopenia in adult patients requiring more than 48 hours of mechanical ventilation. Sarcopenia is assessed using the SARC-F score, impedanciometry, and quadriceps ultrasound. Secondary aims include tracking the development of ICU-Acquired Weakness (ICU-AW) using the MRC score. All data is collected anonymously after obtaining informed consent.

Inclusion Criteria:

• Older than 18 years old.
• Expected duration of mechanical ventilation (MV) exceeding 48 hours.

Exclusion Criteria:

• Refusal to participate.
• Mechanical ventilation not exceeding 48 hours.
• Do-not-resuscitate (DNR) orders or limitations of therapeutic effort upon admission.