Thoracic Epidural Reduces Risks of Increased Left Ventricular Mass Index During Coronary Artery Bypass Graft Surgery

NCT ID: NCT03719248

Last Updated: 2018-10-25

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

80 participants

Study Classification

INTERVENTIONAL

Study Start Date

2017-01-01

Study Completion Date

2018-01-01

Brief Summary

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Increased left ventricular mass index (LVMI) results from aortic valve lesions as an adaptive mechanism to help limit systolic wall stress and preserve ejection fraction (EF). This study Aim to investigate the effects of sympathetic blockade by HTEA on systolic and diastolic LV function in patients undergoing aortic valve replacement (AVR) alone or in addition to coronary artery bypass graft (CABG). It Designs as A prospective randomized controlled comparative study in which eighty patients received either general anesthesia ( control group n=40) or with high thoracic epidural analgesia(HTEA group n=40). Each group subdivided to normal (LVM) (n=20)or increased(LVM) group(n=20), all submitted to (AVR) alone or in addition to (CABG).

Detailed Description

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Background: Increased left ventricular mass index (LVMI) results from aortic valve lesions as an adaptive mechanism to help limit systolic wall stress and preserve ejection fraction (EF).

Aim: to investigate the effects of sympathetic blockade by HTEA on systolic and diastolic LV function in patients undergoing aortic valve replacement (AVR) alone or in addition to coronary artery bypass graft (CABG).

Design: A prospective randomized controlled comparative study. Methods: Eighty patients received either general anesthesia ( control group n=40) or with high thoracic epidural analgesia(HTEA group n=40). Each group subdivided to normal (LVM) (n=20)or increased(LVM) group(n=20), all submitted to (AVR) alone or in addition to (CABG).Perioperative heart rate (HR), mean arterial blood pressure (MAP), incidence of ischemic ECG, LV systolic and diastolic function changes were measured till 48 h, postoperatively.

Patients were subjected to ambulatory Holter monitoring, Hemodynamic measures, intraoperative transesophageal echocardiography (iTEE) and postoperative Trans Thoracic Echocardiography (TTE) to assess myocardial ischemia and Left ventricular systolic/diastolic function.

Conditions

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Ischemia Coronary Artery Origin

Study Design

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Allocation Method

RANDOMIZED

Intervention Model

PARALLEL

Primary Study Purpose

SUPPORTIVE_CARE

Blinding Strategy

NONE

Study Groups

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HTEA Group + N(LVMI)+ AVR alone(n=10)

HTEA Group + N(LVMI)+ AVR alone(n=10)

Group Type ACTIVE_COMPARATOR

thoracic epidural

Intervention Type DEVICE

high thoracic epidural anesthesia (HTEA) combined with GA, transesophageal, transthoracic echocardiography and Holter ECG

HTEA Group + ↑ (LVMI)+ AVR alone(n=10)

HTEA Group + ↑ (LVMI)+ AVR alone(n=10)

Group Type ACTIVE_COMPARATOR

thoracic epidural

Intervention Type DEVICE

high thoracic epidural anesthesia (HTEA) combined with GA, transesophageal, transthoracic echocardiography and Holter ECG

HTEA Group + N(LVMI)+ AVR + CABG(n=10)

HTEA Group + N(LVMI)+ AVR + CABG(n=10)

Group Type ACTIVE_COMPARATOR

thoracic epidural

Intervention Type DEVICE

high thoracic epidural anesthesia (HTEA) combined with GA, transesophageal, transthoracic echocardiography and Holter ECG

HTEA Group +↑ (LVMI)+ AVR + CABG(n=10)

HTEA Group +↑ (LVMI)+ AVR + CABG(n=10)

Group Type ACTIVE_COMPARATOR

thoracic epidural

Intervention Type DEVICE

high thoracic epidural anesthesia (HTEA) combined with GA, transesophageal, transthoracic echocardiography and Holter ECG

Control(GA) Group+ N(LVMI)+ AVR alone(n=10)

Control(GA) Group+ N(LVMI)+ AVR alone(n=10)

Group Type NO_INTERVENTION

No interventions assigned to this group

Control(GA) Group+ ↑ (LVMI)+ AVR alone(n=10)

Control(GA) Group+ ↑ (LVMI)+ AVR alone(n=10)

Group Type NO_INTERVENTION

No interventions assigned to this group

Control(GA) Group+ N(LVMI)+ AVR + CABG(n=10)

(GA) Group+ N(LVMI)+ AVR + CABG(n=10)

Group Type NO_INTERVENTION

No interventions assigned to this group

Control(GA) Group+↑ (LVMI)+ AVR + CABG(n=10)

Control(GA) Group+↑ (LVMI)+ AVR + CABG(n=10)

Group Type NO_INTERVENTION

No interventions assigned to this group

Interventions

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thoracic epidural

high thoracic epidural anesthesia (HTEA) combined with GA, transesophageal, transthoracic echocardiography and Holter ECG

Intervention Type DEVICE

Other Intervention Names

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high thoracic epidural anesthesia (HTEA) combined with GA transesophageal and transthoracic echocardiography Holter ECG

Eligibility Criteria

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Inclusion Criteria

* patients between 65 and 75 years with:
* physical status of ASA II and IV
* who underwent aortic valve replacement (for isolated or mixed aortic valve lesions) alone or in addition to-coronary artery bypass grafting. in the Cardio-thoracic Surgery Department of Tanta University Hospital during a two year period were enrolled in this study.
* Before inclusion in the study, all patients were evaluated with extended echocardiographic imaging, full history including cardiac symptoms (dyspnea, orthopnea, paroxysmal nocturnal dyspnea, chest pain, and low cardiac output symptoms) was taken from all patients. General (including body weight and height) and systematic (including cardiac examination) examinations were done to all patients.

Exclusion Criteria

* Patients with an ejection fraction of 0.3, myocardial infarction within the last 4 weeks
* diabetes
* severe pulmonary or arterial hypertension.
* a contraindication for HTEA.
* patients without preoperative optimal echocardiographic imaging were excluded.
* Patients with significant aortic insufficiency were also excluded from the study in order to avoid introducing further variables that could influence hemodynamic response to the procedure.
* Patients were excluded if they underwent an AVR on an emergency basis, had poor acoustic windows for adequate echocardiographic assessment, and/or did not undergo an echocardiogram before the operation.
Minimum Eligible Age

65 Years

Maximum Eligible Age

75 Years

Eligible Sex

ALL

Accepts Healthy Volunteers

Yes

Sponsors

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Tanta University

OTHER

Sponsor Role collaborator

Ahmed Said Elgebaly,MD

OTHER

Sponsor Role lead

Responsible Party

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Ahmed Said Elgebaly,MD

director

Responsibility Role SPONSOR_INVESTIGATOR

Principal Investigators

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ahmed S Elgebaly, MD

Role: PRINCIPAL_INVESTIGATOR

assist .professor

Locations

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Ahmed Said Elgebaly

Tanta, , Egypt

Site Status

Countries

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Egypt

References

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Schmidt C, Hinder F, Van Aken H, Theilmeier G, Bruch C, Wirtz SP, Burkle H, Guhs T, Rothenburger M, Berendes E. The effect of high thoracic epidural anesthesia on systolic and diastolic left ventricular function in patients with coronary artery disease. Anesth Analg. 2005 Jun;100(6):1561-1569. doi: 10.1213/01.ANE.0000154963.29271.36.

Reference Type RESULT
PMID: 15920175 (View on PubMed)

Berendes E, Schmidt C, Van Aken H, Hartlage MG, Wirtz S, Reinecke H, Rothenburger M, Scheld HH, Schluter B, Brodner G, Walter M. Reversible cardiac sympathectomy by high thoracic epidural anesthesia improves regional left ventricular function in patients undergoing coronary artery bypass grafting: a randomized trial. Arch Surg. 2003 Dec;138(12):1283-90; discussion 1291. doi: 10.1001/archsurg.138.12.1283.

Reference Type RESULT
PMID: 14662525 (View on PubMed)

Blomberg S, Emanuelsson H, Kvist H, Lamm C, Ponten J, Waagstein F, Ricksten SE. Effects of thoracic epidural anesthesia on coronary arteries and arterioles in patients with coronary artery disease. Anesthesiology. 1990 Nov;73(5):840-7. doi: 10.1097/00000542-199011000-00008.

Reference Type RESULT
PMID: 2240673 (View on PubMed)

Svircevic V, Nierich AP, Moons KG, Diephuis JC, Ennema JJ, Brandon Bravo Bruinsma GJ, Kalkman CJ, van Dijk D. Thoracic epidural anesthesia for cardiac surgery: a randomized trial. Anesthesiology. 2011 Feb;114(2):262-70. doi: 10.1097/ALN.0b013e318201d2de.

Reference Type RESULT
PMID: 21239976 (View on PubMed)

Conrady AO, Rudomanov OG, Zaharov DV, Krutikov AN, Vahrameeva NV, Yakovleva OI, Alexeeva NP, Shlyakhto EV. Prevalence and determinants of left ventricular hypertrophy and remodelling patterns in hypertensive patients: the St. Petersburg study. Blood Press. 2004;13(2):101-9. doi: 10.1080/08037050410031855.

Reference Type RESULT
PMID: 15182113 (View on PubMed)

Guarracino F, Cariello C, Tritapepe L, Doroni L, Baldassarri R, Danella A, Stefani M. Transoesophageal echocardiography during coronary artery bypass procedures: impact on surgical planning. HSR Proc Intensive Care Cardiovasc Anesth. 2010;2(1):43-9.

Reference Type RESULT
PMID: 23440403 (View on PubMed)

El-Morsy GZ, El-Deeb A. The outcome of thoracic epidural anesthesia in elderly patients undergoing coronary artery bypass graft surgery. Saudi J Anaesth. 2012 Jan;6(1):16-21. doi: 10.4103/1658-354X.93048.

Reference Type RESULT
PMID: 22412771 (View on PubMed)

Crescenzi G, Landoni G, Monaco F, Bignami E, De Luca M, Frau G, Rosica C, Zangrillo A. Epidural anesthesia in elderly patients undergoing coronary artery bypass graft surgery. J Cardiothorac Vasc Anesth. 2009 Dec;23(6):807-12. doi: 10.1053/j.jvca.2009.02.003. Epub 2009 Apr 19.

Reference Type RESULT
PMID: 19376734 (View on PubMed)

Devereux RB, Reichek N. Echocardiographic determination of left ventricular mass in man. Anatomic validation of the method. Circulation. 1977 Apr;55(4):613-8. doi: 10.1161/01.cir.55.4.613.

Reference Type RESULT
PMID: 138494 (View on PubMed)

Orsinelli DA, Aurigemma GP, Battista S, Krendel S, Gaasch WH. Left ventricular hypertrophy and mortality after aortic valve replacement for aortic stenosis. A high risk subgroup identified by preoperative relative wall thickness. J Am Coll Cardiol. 1993 Nov 15;22(6):1679-83. doi: 10.1016/0735-1097(93)90595-r.

Reference Type RESULT
PMID: 8227838 (View on PubMed)

Other Identifiers

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TantaU

Identifier Type: -

Identifier Source: org_study_id

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