Long-term fatigue might signal poor sleep habits, but it could also be a lingering effect of ministrokes, as a recent study from Aalborg University Hospital in Denmark notes. The findings were published in *Neurology*, the journal of the American Academy of Neurology.
Ministrokes, known medically as transient ischemic attacks (TIAs), involve temporary interruptions in blood flow to the brain, according to the Mayo Clinic. The research indicated that individuals who experienced TIAs were significantly prone to report fatigue lasting up to a year.
“Participants seemed to express fatigue levels similar to those seen in stroke patients,” said Birgitte Hede Ebbesen, a physiotherapist at the hospital, when commenting on the study’s findings.
The study tracked an average of 354 individuals who had suffered ministrokes, with participants averaging around 70 years old. Over the course of a year, fatigue levels were assessed across five different areas. It was observed that on a fatigue scale from 4 to 20, with 20 being the most exhausted, participants averaged a fatigue score of 12.3 within two weeks of the event, dropping to 11.1 by the end of the year.
Notably, two weeks after the ministroke, 61% of individuals reported high fatigue levels. Over the next 3, 6, and 12 months, this figure lowered slightly but remained significant at 54%.
The study also revealed that those with long-term fatigue were twice as likely to experience symptoms of anxiety or depression. Some participants noted feeling fatigued for longer periods than anticipated. “I suspected fatigue was common among TIA patients, but the frequency really surprised me,” one researcher remarked.
Further comments highlighted that if fatigue is experienced shortly after leaving the hospital, it could persist for up to a year. Thus, the researchers suggest those diagnosed with TIAs need to be vigilant about monitoring their fatigue in the ensuing weeks.
Understanding this phenomenon can offer insight into who might require ongoing care for their fatigue. Common symptoms of a stroke usually include facial drooping, weak limbs, or slurred speech, but interestingly, some patients also noted lasting cognitive difficulties.
Causes of Fatigue Following Stroke
Bradley Serwer, chief medical officer at Vitalsolution, confirmed that fatigue is not only common but can also be quite debilitating. He emphasized that “fatigue typically has multiple causes.” Factors include:
- **Brain healing:** Following a stroke, the brain works hard to heal and “rewire” itself, which can cause significant energy depletion.
- **Increased inflammation:** Often a byproduct of the immune response following a TIA, this can contribute to lingering fatigue.
- **Low neurotransmitter levels:** Lower levels of serotonin, dopamine, and norepinephrine can lead to fatigue and reduce motivation.
- **Sleep disorders:** These are frequently observed after strokes and can further disturb sleep patterns.
- **Medication side effects:** Certain drugs prescribed post-stroke, like beta-blockers, can induce fatigue.
- **Psychological factors:** Issues like depression or anxiety often emerge post-stroke, and these can correlate with fatigue.
The researchers acknowledged that their study had limitations. As an observational study, they couldn’t firmly establish causality. Also, results were based on self-reported surveys which raise questions about accuracy.
Looking forward, Modrau expressed hope that healthcare providers would increasingly recognize the enduring fatigue that can follow TIAs, leading to better care pathways for affected patients. She highlighted a societal tendency to overlook the challenges faced by those battling persistent fatigue after these incidents.
Ultimately, this study aimed not only to bring awareness but also to lend a voice to those suffering silently, as their struggles often go unrecognized.
