AI Article Synopsis
- Post-intensive care syndrome (PICS) can lead to long-term physical, psychological, and cognitive challenges for ICU survivors, and there's interest in how mitochondrial dysfunction may play a role in this condition.
- A study analyzed 43 ICU survivors to look for connections between mitochondrial health (through mtDNA markers) and long-term physical functioning, but found no significant correlations between these factors.
- The research highlights that PICS is influenced by many factors beyond just mitochondrial health, indicating a need for further studies to improve recovery strategies for ICU survivors.
Article Abstract
Background: Post-intensive care syndrome (PICS) poses a notable public health concern, with survivors of critical illness experiencing long-term physical, psychological, and cognitive challenges. Mitochondrial dysfunction has gained attention for its potential involvement in PICS. However, the long-term impact of mitochondrial status on patient recovery remains uncertain. A single-centre retrospective analysis was conducted in Leeuwarden, the Netherlands, between May and November 2019, within a mixed ICU survivor cohort. Patients were assessed for mitochondrial markers (mtDNA damage represented by the presence of mtDNA fragmentation and mitochondrial DNA levels evaluated by the ratio of mtDNA and nuclear DNA), clinical factors, and long-term outcomes measured by the physical functioning (PF) domain of health-related quality of life.
Results: A total of 43 patients were included in this study divided into recovery and non-recovery groups based on age-adjusted PF scores at 12 months post-ICU. Nineteen patients scored below these thresholds. No significant differences in mitochondrial markers between groups were identified. Furthermore, no significant correlations were found between mtDNA levels and mtDNA damage at baseline and 12 months with PF scores. However, mtDNA levels decreased over time in the recovery (p-value < < 0.01) and non-recovery groups (p-value < 0.01).
Conclusion: No significant correlation was found between mitochondrial markers and physical functioning scores. This study underscores the multifactorial nature of PICS and the need for a comprehensive understanding of its metabolic and cellular components. While mitochondrial markers may play a role in PICS, they operate within a framework influenced by various factors. This exploratory study serves as a foundation for future investigations aimed at developing targeted interventions to enhance the quality of life for ICU survivors grappling with PICS.
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| http://www.ncbi.nlm.nih.gov/pmc/articles/PMC11541963 | PMC |
| http://dx.doi.org/10.1186/s40635-024-00690-z | DOI Listing |
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