Cardiopulmonary Protective Effects of Modified Remote Ischaemic Preconditioning in Mitral Valve Replacement Surgery

NCT ID: NCT03010839

Last Updated: 2018-03-19

Study Results

Results pending

The study team has not published outcome measurements, participant flow, or safety data for this trial yet. Check back later for updates.

Basic Information

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Recruitment Status

COMPLETED

Clinical Phase

NA

Total Enrollment

86 participants

Study Classification

INTERVENTIONAL

Study Start Date

2016-11-05

Study Completion Date

2018-03-10

Brief Summary

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During cardiac surgery with cardiopulmonary bypass , injury occurs to the heart muscle and the lung.The heart and lung injury is a serious complication ,which increases both mortality and morbidity of cardiac surgery .Remote ischemic preconditioning(RIPC) with transient upper limb ischemia/reperfusion is a novel, simple, cost-free,non-pharmacological and non-invasive strategy.Recent some trials suggested that RIPC could provide myocardial protection by reducing serum cardiac biomarkers,however, more recent multicenter studies\[9-11\] had failed to show the protective effects of RIPC with respect to the troponin release and lung injury.

Remote ischemic preconditioning (RIPC) is reported to have the early-phase and delayed-phase organ protective effects, whether the modified RIPC protocol induced repeatedly has the cardiopulmonary protective effect is still uncertain.

Detailed Description

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modified RIPC was induced at 24 h, 12 h and 1 h before surgery to reinforce the protective effects of RIPC.The single RIPC protocol was induced by three cycles of upper-limb ischemia, a standard blood-pressure cuff was placed on the ringt upper arm, then inflated the cuff to 200 mm Hg for 5 minutes, followed by 5 min of cuff deflation.

Conditions

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Myocardial Injury Remote Ischemic Preconditioning

Study Design

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Allocation Method

RANDOMIZED

Intervention Model

PARALLEL

Primary Study Purpose

PREVENTION

Blinding Strategy

SINGLE

Investigators

Study Groups

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Modified Remote Ischemic Preconditioning(mRIPC)

modified RIPC was induced at 24 h, 12 h and 1 h before surgery to reinforce the protective effects of RIPC. The single RIPC protocol was induced by three cycles of upper-limb ischemia, a standard blood-pressure cuff was placed on the ringt upper arm, then inflated the cuff to 200 mm Hg for 5 minutes, followed by 5 min of cuff deflation.

Group Type ACTIVE_COMPARATOR

Modified Remote Ischemic Preconditioning

Intervention Type PROCEDURE

mRIPC will be induced at 24 h, 12 h and 1 h before surgery and once before induction of anesthesia by 3 cycles of 5-min upper limb ischemia and 5-min reperfusion using a blood-pressure cuff inflated to a pressure 200mmHg

Control

Control group without remote ischemic preconditioning

Group Type PLACEBO_COMPARATOR

Control

Intervention Type PROCEDURE

Control group witnout remote ischemic preconditioning

Interventions

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Modified Remote Ischemic Preconditioning

mRIPC will be induced at 24 h, 12 h and 1 h before surgery and once before induction of anesthesia by 3 cycles of 5-min upper limb ischemia and 5-min reperfusion using a blood-pressure cuff inflated to a pressure 200mmHg

Intervention Type PROCEDURE

Control

Control group witnout remote ischemic preconditioning

Intervention Type PROCEDURE

Other Intervention Names

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mRIPC

Eligibility Criteria

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Inclusion Criteria

1. Patients undergoing heart surgery on cardiopulmonary bypass
2. Patients aged 18 years to 80 years

Exclusion Criteria

1. Inability to give informed consent
2. Cardiogenic shock
3. Cardiac arrest on current admission
4. Left ventricular ejection fraction less than 30%
5. Current atrial fibrillation
6. Preoperative use of inotropics or mechanical assist device
7. Patients with significant hepatic dysfunction (Prothrombin\>2.0 ratio)
8. Patients with known renal failure with a GFR\<30 mL/min/1.73 m2
9. Patients with significant pulmonary disease (FEV1\<40% predicted)
10. Recent myocardial infarction (within 7 days)
11. Recent systemic infection or sepsis (within 7 days)
12. Severe stroke (within 2 months)
13. Significant peripheral arterial disease affecting the upper limbs
14. Previous serious psychiatric disorders (e.g. schizophrenia, dementia)
15. Surgeries: cardiac transplantation, concomitant carotid endarterectomy , previous heart surgery,off-pump surgery, emergency surgery
Minimum Eligible Age

18 Years

Maximum Eligible Age

80 Years

Eligible Sex

ALL

Accepts Healthy Volunteers

No

Sponsors

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Xuzhou Medical University

OTHER

Sponsor Role lead

Responsible Party

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Su Liu

M.D/Ph.D

Responsibility Role PRINCIPAL_INVESTIGATOR

Principal Investigators

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Liu Su, M.D/Ph.D

Role: PRINCIPAL_INVESTIGATOR

The Affiliated Hospital of Xuzhou Medical University

Locations

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The Affiliated Hospital of Xuzhou Medical University

Xuzhou, Jiangsu, China

Site Status

Countries

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China

References

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Other Identifiers

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XYFY-2017-001

Identifier Type: -

Identifier Source: org_study_id

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