rogerblack
Established Member (Voting Rights)
A note for any of us who notice cardiac symptoms being called out as 'serious' and caused by covid.
It may be worth calling attentions to these symptoms being part of CFS too, and are another reason to suspect that the various experiences of the 'long tail' of covid may 'just' be CFS, and nothing special to this virus.
(Apart from a seperate symptom set caused in the very ill by blood clotting and lung capacity issues)
https://www.jstage.jst.go.jp/article/internalmedicine/48/21/48_21_1849/_article
A paper from 2009. Cardiovascular dysfunction with low cardiac output due to a small heart in patients with chronic fatigue syndrome
Electrocardiograms frequently revealed right axis deviation (21%) and severe sinus arrhythmia (34%) suggesting accentuated parasympathetic nervous activity. Small heart shadow (cardiothoracic ratio ≤42%) was noted on the chest roentgenogram in 32 patients (60%). Echocardiographic examination demonstrated low cardiac indexes (<2 L/min/m2) with low stroke volume indexes (<30 mL/m2) due to a small left ventricular chamber in 19 (36%, p<0.05 vs. 8% in 36 controls). None had reduced left ventricular ejection fraction.
Conclusion Cardiovascular symptoms are common in CFS patients. Cardiac dysfunction with low cardiac output due to small left ventricular chamber may contribute to the development of chronic fatigue as a constitutional factor in a considerable number of CFS patients.
Significant sinus arhythmia here, 30 years on from a disease unlikely to be covid-19. Manifested at the same time as CFS, and remains when I have the severest symptoms.
(This paper has a forum thread here:
(2009) Cardiovascular Dysfunction with Low Cardiac Output Due to a Small Heart in Patients with Chronic Fatigue Syndrome, Miwa et al)
It may be worth calling attentions to these symptoms being part of CFS too, and are another reason to suspect that the various experiences of the 'long tail' of covid may 'just' be CFS, and nothing special to this virus.
(Apart from a seperate symptom set caused in the very ill by blood clotting and lung capacity issues)
https://www.jstage.jst.go.jp/article/internalmedicine/48/21/48_21_1849/_article
A paper from 2009. Cardiovascular dysfunction with low cardiac output due to a small heart in patients with chronic fatigue syndrome
Electrocardiograms frequently revealed right axis deviation (21%) and severe sinus arrhythmia (34%) suggesting accentuated parasympathetic nervous activity. Small heart shadow (cardiothoracic ratio ≤42%) was noted on the chest roentgenogram in 32 patients (60%). Echocardiographic examination demonstrated low cardiac indexes (<2 L/min/m2) with low stroke volume indexes (<30 mL/m2) due to a small left ventricular chamber in 19 (36%, p<0.05 vs. 8% in 36 controls). None had reduced left ventricular ejection fraction.
Conclusion Cardiovascular symptoms are common in CFS patients. Cardiac dysfunction with low cardiac output due to small left ventricular chamber may contribute to the development of chronic fatigue as a constitutional factor in a considerable number of CFS patients.
Significant sinus arhythmia here, 30 years on from a disease unlikely to be covid-19. Manifested at the same time as CFS, and remains when I have the severest symptoms.
(This paper has a forum thread here:
(2009) Cardiovascular Dysfunction with Low Cardiac Output Due to a Small Heart in Patients with Chronic Fatigue Syndrome, Miwa et al)
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