None listed
Conditions
Interventions
Procedure/Surgery : The order in which the two techniques (conventional carotid sinus massage[CM], Delta carotid sinus massage[CM]) were performed were randomly allocated by the randomization sequence
1) Right delta CSM (DM) -> Right conventional CSM (CM) 2) Right conventional CSM (CM) -> Right delta CSM (DM). Before and after performing each test, the resting time of 3 minutes was provided in each
Sponsors
Ajou University Hospital
Eligibility
Sex/Gender
All
Inclusion criteria
Inclusion criteria: All participants enrolled in this study were volunteers who were recruited via posters in our hospital. The informed consent was obtained after explaining the aim, and design of this study. Inclusion criteria were self-reported good general health, being aged 19 to 60 years, sinus rhythm on initial electrocardiography (ECG), and no bruit in carotid artery in direct auscultation before test.
Exclusion criteria
Exclusion criteria: Exclusion criteria were regular medication (other than oral contraceptives), a history of cardiorespiratory disease, a history of syncope, orthostatic hypotension, cerebrovascular accident or transient ischemic attack. Syncope was defined as sudden, complete and transient loss of consciousness and postural tone, with spontaneous recovery. Participants were forbidden to smoke or consume alcohol or caffeine within the 6 hours before examination.
Design outcomes
Primary
| Measure | Time frame |
|---|---|
| the mean difference in R-R interval (intra- or post-test minus pre-test, in seconds) | — |
Secondary
| Measure | Time frame |
|---|---|
| the mean difference in heart rate (intra- or post-test minus pre-test, in seconds) | — |
Countries
Korea, Republic of
Contacts
Public ContactJung Hwan Ahn
Ajou University Hospital
Outcome results
None listed