Re-entrant Tachycardia Circulatory System Re-entry ventricular arrhythmia
Conditions
Interventions
Control - Standard VM, Normal Valsalva strain at 40mmHg for 15 seconds in a semi-recumbent position, remaining in this position for 60 seconds after strain before reviewing ECG for cardioversion.
Int
Sponsors
Royal Devon and Exeter Foundation Trust (UK)
Eligibility
Sex/Gender
All
Inclusion criteria
Inclusion criteria: 1. Age 18 years and over 2. Stable male or female adult patients presenting to the Emergency Department with SVT (regular, narrow complex tachycardia with QRS duration <0.12ms on ECG) 3. Written informed consent to participate
Exclusion criteria
Exclusion criteria: 1. Unstable patient (BP 220mmHg or diastolic >120mmHg) 5. Any contraindication to or inability to performing a VM 6. Contraindication or inability to lay flat or lift legs 7. 3rd trimester pregnancy 8. Patients without capacity to provide written informed consent 9. Previous inclusion in the study
Design outcomes
Primary
| Measure | Time frame |
|---|---|
| The presence of sinus rhythm post Valsalva as determined by a 12 lead ECG.; Timepoint(s): 1 minute post-Valsalva | — |
Secondary
| Measure | Time frame |
|---|---|
| 1. Adverse events; Timepoint(s): From time of consent until discharge from emergency department (ED) 2. The need for hospital admission Timepoint(s): Post-Valsalva until discharge from ED. 3. Time spent in ED; Timepoint(s): From time of admission until discharge from ED. 4. Use of other emergency treatments for SVT in ED; Timepoint(s): Post-Valsalva until discharge from ED | — |
Countries
United Kingdom
Outcome results
None listed