Valsalva maneuver and strain-related ECG changes
نویسندگان
چکیده
منابع مشابه
Valsalva Maneuver and Strain-Related ECG Changes
BACKGROUND During the four steps of the Valsalva maneuver (VM), opposite changes can be observed in some physiologic parameters. Manifestations of the VM in the electrocardiogram (ECG) have been studied in detail, but there have been few reports comparing VM-related biochemical and hemodynamic changes with a focus on the strain phase of the VM. OBJECTIVES We studied strain-related ECG changes...
متن کاملvalsalva maneuver and strain-related ecg changes
background during the four steps of the valsalva maneuver (vm), opposite changes can be observed in some physiologic parameters. manifestations of the vm in the electrocardiogram (ecg) have been studied in detail, but there have been few reports comparing vm-related biochemical and hemodynamic changes with a focus on the strain phase of the vm. objectives we studied strain-related ecg changes d...
متن کاملValsalva maneuver: shortest optimal expiratory strain duration
PURPOSE To quantitate the level of difficulty and determine consistency of hemodynamic responses with various expiratory strain (ES) durations. METHODS Thirty-four healthy subjects performed the Valsalva maneuver (VM) with an ES duration of 10, 12, and 15 seconds in random order. Level of difficulty after each trial was rated 1 to 10, with 10 being the most difficult. Blood pressure and heart...
متن کاملReciprocal splanchnic-thoracic blood volume changes during the Valsalva maneuver.
The Valsalva maneuver is frequently used to test autonomic function. Previous work demonstrated that the blood pressure decrease during the Valsalva maneuver relates to thoracic hypovolemia, which may preclude pressure recovery during phase II, even with normal resting peripheral vasoconstriction. We hypothesized that increased regional blood volume, specifically splanchnic hypervolemia, accoun...
متن کاملModified Valsalva Maneuver vs. Standard Valsalva Maneuver on Emergency Department Patients Presenting with Supraventricular Tachycardia
Background: Supraventricular tachycardia (SVT) is a relatively common dysrhythmia among the general population and a common dysrhythmia presenting to the emergency department. Generally speaking, it is assumed the provider should attempt a vagal maneuver as first-line treatment for SVT, and the most common vagal maneuver used is the Valsalva. Current resources describing the method to perform t...
متن کاملذخیره در منابع من
با ذخیره ی این منبع در منابع من، دسترسی به آن را برای استفاده های بعدی آسان تر کنید
ژورنال
عنوان ژورنال: Research in Cardiovascular Medicine
سال: 2015
ISSN: 2251-9572
DOI: 10.5812/cardiovascmed.28136