It does work, and some science behind it, increased venous return will cause increases end diastolic volume. There will be increased vagal firing in response to decrease the heart rate to maintain the cardiac output. Hence CSM may be more likely to work.
>Several paramedics have recently reported the conversion of SVT to NSR by raising the patients legs. Previous attempts (carotid massage/valsalva) had proved ineffective for these patients, who were normotensive, although displaying signs of circulatory compromise (pale, sweating, dizzy etc). Does any member of the list have any evidence (anecdotal or otherwise) that may explain this phenomenon please?
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>Richard Taffler
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>BSc(Hons) BEng GASI SRPara
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>Clinical Effectiveness Officer
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>Westcountry Ambulance NHS Trust
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