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The randomized controlled study of diagnostic accuracy of short-term protocol and traditional protocol of head-up tilt test in patients with suspected vasovagal syncope

The randomized controlled study of diagnostic accuracy of short-term protocol and traditional protocol of head-up tilt test in patients with suspected vasovagal syncope

Status
Recruiting
Phases
Unknown
Study type
Interventional
Source
ChiCTR
Registry ID
ChiCTR2500106499
Enrollment
Unknown
Registered
2025-07-24
Start date
2025-04-21
Completion date
Unknown
Last updated
2025-08-18

For informational purposes only — not medical advice. Sourced from public registries and may not reflect the latest updates. Terms

Conditions

Syncope

Interventions

(Basic) short-term program group:The supine period is 5 minutes, the basic tilt test stage is 20 minutes, and the nitroglycerin tilt tilt test is performed for 20 minutes for negative patients.
Traditional regimen group:5 minutes in the supine period, 10 minutes in the basic tilt test stage, and 20 minutes in the nitroglycerin tilt test for negative patients.

Sponsors

The Second Hospital of Tianjin Medical University
Lead Sponsor

Eligibility

Sex/Gender
All
Age
18 Years to No maximum

Inclusion criteria

Inclusion criteria: 1. Age >= 18 years; 2. The attack process conforms to the characteristics of vasovagal syncope; 3. The patient and their family members understand the purpose and steps of this study, voluntarily participate in the study, and sign a written informed consent; 4.The patient and their family members are willing and able to follow the research plan and other requirements of the protocol.

Exclusion criteria

Exclusion criteria: 1. Unable to obtain written informed consent; 2. Loss of consciousness due to other reasons, such as dizziness, coma, shock, epileptic seizure, head injury, transient cerebral ischemia attack, drug toxicity, hypoglycemia, etc.; 3. Cardiogenic syncope determined or suspected according to the latest syncope guidelines; 4. Severe hypotension (systolic blood pressure less than 90 mmHg); 5. Severe anemia (hemoglobin less than 11 mg/dL); 6. History of taking phosphodiesterase inhibitors, dipyridamole or drug alcohol abuse; 7. Pregnant women; 8. Indications for contraindications of the upright tilt test: Contraindications: Falls resulting in serious incidents and unstable conditions; Severe vascular stenosis both inside and outside the brain, severe stenosis of the coronary artery, aortic valve and mitral valve, severe hypertrophic obstructive cardiomyopathy, severe anemia, severe arrhythmia, moderate to severe hypertension, pregnancy. 9.Nitrates drug contraindications: Prohibited for patients in the early stage of myocardial infarction (with severe hypotension and tachycardia), severe anemia, glaucoma, increased intracranial pressure and those known to be allergic to nitrates. Also prohibited for use with citrate sildenafil (to enhance the blood pressure-lowering effect of nitrates).

Design outcomes

Primary

MeasureTime frame
Blood pressure (systolic pressure, diastolic pressure, mean arterial pressure);Heart rhythm;Electrocardiogram index;

Secondary

MeasureTime frame
Echocardiography index;Ambulatory blood pressure ;Hematological examination index;Composite Self-Reported Symptom Score;Height;Weight;

Countries

China

Contacts

Public ContactTong Liu

The Second Hospital of Tianjin Medical University

liutongdoc@126.com+86 139 0218 3163

Outcome results

None listed

Source: ChiCTR (via WHO ICTRP) · Data processed: Feb 4, 2026