Pilot study for a novel delta carotid sinus massage in increasing parasympathetic tone: a randomized, prospective, cross-over, comparative study with conventional method
이동익, 신태용, Toh Hong Chuen, 이민중, 안정환,
소속 상세정보
이동익 ( Lee Dong-Ik )
Ajou University School of Medicine Department of Emergency Medicine
신태용 ( Shin Tae-Yong )
Bundang Jesaeng General Hospital Department of Emergency Medicine
( Toh Hong Chuen )
Khoo Teck Puat Hospital Acute and Emergency Care Centre
이민중 ( Lee Min-Jung )
Ajou University School of Medicine Department of Emergency Medicine
안정환 ( Ahn Jung-Hwan )
Ajou University School of Medicine Department of Emergency Medicine
KMID : 0385920190300020176
Abstract
Objective: This study examined the efficacy of new delta carotid sinus massage (CSM) versus conventional CSM (CM).
Method: This prospective, cross-over study was conducted on 26 healthy volunteers with a normal sinus rhythm. CM and delta CSM (DM) were performed in all participants. In both cases, the CSM was performed, where the maximal carotid pulse was palpated. DM differed from CM in that the physician moves the palpating finger in the opposite direction of the carotid pulse at least twice. The mean and longest R-R intervals and mean and lowest heart rates (HRs) at the baseline and during the procedure for each technique were compared. The mean differences between the baseline and procedure R-R intervals and the HRs for each technique were also evaluated.
Results: The baseline mean and longest R-R intervals and baseline mean and lowest HRs were similar both groups (P>0.05). The procedure DM mean and longest R-R intervals (22.7±3.1, 26.4±4.9) were significantly greater than the CM corresponding values (22.0±3.1, 24.6±3.5; P<0.001, P=0.003). Procedure DM mean and lowest HRs (67.3±9.7, 58.6±10.7) were significantly lower than the CM corresponding values (69.4±10.0, 61.8±8.9; P=0.001, P=0.003). The differences in the R-R interval and HR between the procedure and baseline were significant (mean and longest R-R intervals with CM [1.3±1.5 and 2.1±1.9] vs. DM [2.0±1.4 and 3.8±3.1], P<0.001, P=0.004; mean and lowest HRs with CM [4.2±4.3 and 5.8±4.6] vs. DM [6.3±4.6 and 9.1±6.5], P<0.001, P=0.005).
Conclusion: DM is more effective in generating a more potent vagal tone than CM.
키워드
Carotid sinus; Massage; Electrocardiography; Heart rate
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