Comparing single and double syringe techniques for treating tachycardia

Comparison of Double-syringe vs Single-syringe Technique of Adenosine Administration for Termination of Regular-narrow Complex Tachycardia: A Randomized, Controlled Trial

Not applicable Interventional Khon Kaen University · NCT05022290

This study is testing if a simpler single-syringe method for giving adenosine can effectively treat adults with a fast heart rate called supraventricular tachycardia, compared to the traditional double-syringe method.

Quick facts

PhaseNot applicable
Study typeInterventional
Enrollment300 (estimated)
Ages18 Years to 80 Years
SexAll
SponsorKhon Kaen University Academic / other
Locations1 site (Khon Kaen, Muang)
Trial IDNCT05022290 on ClinicalTrials.gov

What this trial studies

This clinical trial evaluates the effectiveness of a single-syringe technique for administering adenosine compared to the conventional double-syringe technique in patients with supraventricular tachycardia (SVT). The study aims to determine if the single-syringe method, which is less resource-intensive, is equally effective in terminating regular narrow complex tachyarrhythmias. Participants will be adults aged 18-80 who have not responded to vagal maneuvers and meet specific EKG criteria. The trial will provide randomized control data to support the efficacy of the single-syringe approach.

Who should consider this trial

Good fit: Ideal candidates are adults aged 18-80 with regular rhythm, narrow QRS complex tachyarrhythmias who have not responded to vagal maneuvers.

Not a fit: Patients experiencing acute asthmatic attacks, acute heart failure, or other serious conditions may not benefit from this study.

Why it matters

Potential benefit: If successful, this study could streamline the treatment process for SVT, making it more efficient and accessible in emergency settings.

How similar studies have performed: While observational studies suggest the single-syringe technique may be effective, this is the first randomized control trial to rigorously test this approach.

Eligibility criteria

Show full inclusion / exclusion criteria
Inclusion Criteria:

* Age between 18-80 years old
* EKG shows regular rhythm, narrow QRS complex tachyarrhythmias (QRS complex \<0.12 msec, and rate \>150 beats per minute; bpm)
* Pulse can be palpated
* The tachycardia is not terminated by a vagal maneuver.

Exclusion Criteria:

* Acute asthmatic attack
* Pregnant or tendency to be pregnant
* Acute heart failure
* Acute chest pain
* Alteration of consciousness
* Hypotension
* Presenting of signs of hypoperfusion

Where this trial is running

Khon Kaen, Muang

How to participate

  1. Review the eligibility criteria above with your treating physician.
  2. Visit the official trial page on ClinicalTrials.gov for the most current contact information and recruitment status.
  3. Contact the listed study coordinator or principal investigator to request pre-screening. Pre-screening is free and never obligates you to enroll.
Conditions Supraventricular Tachycardiaadenosinetachycardiasingle bolusemergencyAsian
Last reviewed 2026-06-09 by the Find a Trial editorial team. Information on this page is for educational purposes and is not medical advice. Always consult qualified healthcare professionals about clinical trial participation.