Pregnancy Related Clinical Trial
Official title:
Pregnancy Related Inappropriate Sinus Tachycardia Syndrome Study
A feasibility study into the exploration of possible mechanisms underlying inappropriate sinus tachycardia (IST) syndrome in pregnancy.
This is a non-interventional, physiological study which will explore the feasibility of
examining autonomic function and related haemodynamic variables in pregnant women with and
without inappropriate sinus tachycardia, with the aim of providing scope for future research.
Sinus tachycardia (normal heart rhythm but fast heart rate) is common and usually related to
an obvious cause (e.g. exercise such a running or cycling) and doesn't cause any untoward
symptoms. In rare cases however, sinus tachycardia can occur without an obvious cause (i.e.
it is inappropriate to the situation) and can cause distressing symptoms such as
palpitations, dizziness and breathlessness at rest or with minimal exertion. This syndrome of
inappropriate sinus tachycardia is poorly understood and can be difficult to manage;
especially when the affected individual is pregnant. In order to understand the condition
better and improve care pathways we aim to measure various features of the cardiovascular
system in pregnant women with and without IST.
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