NCT03590353

Brief Summary

Bradyarrhythmia is one of the common diseases. Also, bradyarrhythmia could result in syncope, clinic convulsion, shock, sudden death and so on, which could influence people's life quality severely. Artificial pacemaker is the only way that can cure bradyarrhythmia. However, traditional right ventricular apical pacing, because its electric stimulation is mostly different of the physiological one, could lead to ventricular thick inhomogeneously. At the same time, traditional right ventricular apical pacing also could result in cardiac arrhythmia and fibrosis, dyssynchrony of the ventricles, which can increase the volume of mitral regurgitation. Besides, cardiac resynchronization therapy (CRT), which aims to cure chronic heart failure, is also unsatisfactory. On the contrary, the electric stimulation of his bundle pacing (HBP) is the same as the physiological one, which produces a relatively normal electrical stimulation and synchrony in systolic velocities in ventricular. Thus, HBP could produce a better haemodynamic effect, which is the hotspot in pace-making area recently. The purpose of this study is to conduct a comparison in patients' cardiac function, ECG, and pacemakers' threshold value, time limit and so on among dual chamber pacemaker, and HBP.

Trial Health

87
On Track

Trial Health Score

Automated assessment based on enrollment pace, timeline, and geographic reach

Enrollment
84

participants targeted

Target at P50-P75 for not_applicable

Timeline
Completed

Started Jun 2018

Typical duration for not_applicable

Geographic Reach
1 country

1 active site

Status
completed

Health score is calculated from publicly available data and should be used for screening purposes only.

Trial Relationships

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Study Timeline

Key milestones and dates

First Submitted

Initial submission to the registry

May 11, 2018

Completed
21 days until next milestone

Study Start

First participant enrolled

June 1, 2018

Completed
2 months until next milestone

First Posted

Study publicly available on registry

July 18, 2018

Completed
2.2 years until next milestone

Primary Completion

Last participant's last visit for primary outcome

October 1, 2020

Completed
2 months until next milestone

Study Completion

Last participant's last visit for all outcomes

November 30, 2020

Completed
Last Updated

May 5, 2022

Status Verified

September 1, 2021

Enrollment Period

2.3 years

First QC Date

May 11, 2018

Last Update Submit

May 4, 2022

Conditions

Outcome Measures

Primary Outcomes (3)

  • Changes of ECG

    time limit of QRS in ms, PR duration in ms, QRS duration and QT duration in ms

    1-12 month after the surgery

  • Changes of the Data of Pacemaker

    Threshold value in V, sense in mV of the pacemaker

    1-12 month after the surgery

  • Changes of UCG

    UCG:sizs of LA,RA,LV,RV in mm and ejetion fraction of LV and LA (%), and E peak, A peak in mm and velocity time integral (VTI) of LA

    1-12 month after the surgery

Secondary Outcomes (1)

  • Rate of Special incidence

    1-12 month after the surgery

Study Arms (2)

Dual chamber pacemaker

ACTIVE COMPARATOR

1. Patients with sinus node disfunction: sinus node disfunction with obvious clinical symptoms, including sinus pause; patients with chronotropismus disfunction; patients have to take some medicine due to some diseases, but the medicine may result to sinus bradycardia. 2. Adult Acquired Atrioventricular Block (AVB): (1). Third degree or advanced atrioventricular block in any block part with symptomatic bradycardia (2). Patients taking other antiarrhythmic drugs in long term, which could result in third degree or advanced AVB (in any block part) and symptomatic bradycardia; 3. Patients with acute myocardial infarction (AMI) and AVB: (1). Patients with His-Purkinje system persistent second degree AVB and retardant or third degree AVB after STEMI; (2). Patients with temporary severe second degree AVB or third degree AVB (block part under atrioventricular node) and retardant; 4. Patients with carotid sinus hypersensitivity or neurogenic syncope of the heart;

Device: Dual Chamber Pacemaker

His bundle pacemaker

EXPERIMENTAL

His Bundle Pacemaker: All of the Criteria Inclusion of dual chamber pacemaker excluding patients with block part under the his bundle;

Device: His Bundle Pacemaker

Interventions

1\. Conducting venipuncture. Subclavian vein is our first choice. Then we set up two venous channels and implant two guiding wires into postcava. 2.Putting 2 sheathing canals into heart along with guiding wires. 3.Locating the sheathing canals, and putting electrodes into canals. 3.Adjusting the electrodes and revolving them anticlockwise to lead them to right atrium and right ventricle respectively under the X-ray. 4.Immobilizing electrodes. 5. Some ways to determine whether the electrode is fixed or not: the head of the electrodes could beat rhythmically with atrium or ventricle or by testing damage current. 6.Removing the canals and suturing.

Dual chamber pacemaker

1.Conducting venipuncture. Subclavian vein is our first choice. Then we set up two venous channels and implant two guiding wires into postcava. One of the guide wire is 120cm in length, 0.035 or 0.038 in diameter, which is required to lead the C315 sheathing canal. 2.Putting C315 sheathing canal into heart along with guiding wires. 3.Locating the C315 sheathing canal, and adjusting the head of C315 towards ideal pacing location. 3.Implanting the spiral electrodes and fixing them. Leading the spiral electrode to the side of his bundle along the C315 canal under the X-ray. The other electrode is leaded to right atrium like dual chamber pacemaker under the X-ray. 4.Revolving the 3830 electrode suitably to Immobilizing it in cardiac muscle. If the electrode can get his electric potential and produce his bundle pacing successfully, we revolve the 3830 electrode and immobilize it.

His bundle pacemaker

Eligibility Criteria

Age18 Years - 80 Years
Sexall
Healthy VolunteersNo
Age GroupsAdult (18-64), Older Adult (65+)

You may qualify if:

  • Patients with sinus node disfunction: sinus node disfunction with obvious clinical symptoms, including sinus pause; patients with chronotropismus disfunction; patients have to take some medicine due to some diseases, but the medicine may result to sinus bradycardia.
  • Adult Acquired Atrioventricular Block (AVB):
  • Third degree or advanced atrioventricular block in any block part with symptomatic bradycardia
  • Patients taking other antiarrhythmic drugs in long term, which could result in third degree or advanced AVB (in any block part) and symptomatic bradycardia;
  • Patients with carotid sinus hypersensitivity or neurogenic syncope of the heart;

You may not qualify if:

  • Patients with congenital heart diseases,such as arial septal defect,ventricuar defect, rheumatic heart diseases, and valvular heart diseases,such as MS, MI, TS, TI.

Contact the study team to confirm eligibility.

Sponsors & Collaborators

Study Sites (1)

Second Hospital of Hebei Medical University

Shijiazhuang, Hebei, China

Location

Study Design

Study Type
interventional
Phase
not applicable
Allocation
RANDOMIZED
Masking
SINGLE
Who Masked
PARTICIPANT
Purpose
TREATMENT
Intervention Model
PARALLEL
Sponsor Type
OTHER
Responsible Party
PRINCIPAL INVESTIGATOR
PI Title
Director of the Department of Cardiology in the Second Hospital of Hebei Medical University

Study Record Dates

First Submitted

May 11, 2018

First Posted

July 18, 2018

Study Start

June 1, 2018

Primary Completion

October 1, 2020

Study Completion

November 30, 2020

Last Updated

May 5, 2022

Record last verified: 2021-09

Locations