Effect of Adjustable Passive Constraint on the Failing Left Ventricle: A Finite-Element Model Study Choon-Sik Jhun, PhD, Jonathan F. Wenk, PhD, Zhihong.

Slides:

Advertisements

Similar presentations

Morphologic Spectrum of Ventriculoarterial Connection in Hearts With Double Inlet Left Ventricle: Implications for Surgical Procedures Hideki Uemura, MD,

Advertisements

Anna Hallbergson, MD, PhD, Kimberlee Gauvreau, ScD, Andrew J

The STS National Database

Coronary Artery Bypass for Heart Failure in Ischemic Cardiomyopathy: 17-Year Follow- Up Marco Pocar, MD, PhD, Andrea Moneta, MD, Adalberto Grossi, MD,

Risk-Adjusted Prolonged Length of Stay as an Alternative Outcome Measure for Pediatric Congenital Cardiac Surgery Ming Liu, MS, MA, Charlotte M. Druschel,

Investigating the Causes of Adverse Events

Surgical Treatment of an Isolated Metastatic Myocardial Neuroendocrine Tumor Christiano C.B. Caldeira, MD, Dany Sayad, MD, Jonathan Strosberg, MD, Cristiano.

Biomechanics of Failed Pulmonary Autografts Compared to Native Aortic Roots Aart Mookhoek, MD, Kapil Krishnan, PhD, Sam Chitsaz, MD, PhD, Heide Kuang,

Diaphragmatic Defect Complicating Peritoneal Dialysis

Robert C. Neely, MD, Robert Patrick Davis, PhD, Elizabeth H

Andrew K. Knutsen, PhD, Ningning Ma, BS, Ajay K. Taggar, MD, Beckah D

Stent and Leaflet Stresses in 29-mm Second-Generation Balloon-Expandable Transcatheter Aortic Valve Yue Xuan, PhD, Kapil Krishnan, PhD, Jian Ye, MD,

Myosplint decreases wall stress without depressing function in the failing heart: a finite element model study Julius M Guccione, PhD, Ali Salahieh,

Long Esophageal Segment Laceration Caused by an Orogastric Tube During Laparoscopic Sleeve Gastrectomy Sang Kuon Lee, MD, Jongho Lee, MD The Annals.

The effect of ventricular volume reduction surgery in the dilated, poorly contractile left ventricle: A simple finite element analysis Mark B. Ratcliffe,

Is There a Role for Biomechanical Engineering in Helping to Elucidate the Risk Profile of the Thoracic Aorta? Giampaolo Martufi, PhD, Arianna Forneris,

Lindsay C.H. John, MD, FRCS The Annals of Thoracic Surgery

Douglas L. Mann, MD, Michael A. Acker, MD, Mariell Jessup, MD, Hani N

James J. Pilla, PhD, Kevin J. Koomalsingh, MD, Jeremy R

Slice-by-Slice Pressure-Volume Loop Analysis Demonstrates Native Differences in Regional Cardiac Contractility and Response to Inotropic Agents Francisco.

A Protective Device for Negative-Pressure Therapy in Patients With Mediastinitis Richard Ingemansson, MD, PhD, Malin Malmsjö, MD, PhD, Sandra Lindstedt,

Reply The Annals of Thoracic Surgery

Surgical Resection of a Giant Coronary Aneurysm

Christopher W. Seder, MD, Bassem T. Elhassan, MD, Dennis A

Pleural Metastasis of Osteosarcoma

Samuel P. Morreau, David A. Haydock, MBChB, FRACS

John Alfred Carr, MD, Joseph J. Amato, MD, Robert S.D. Higgins, MD

First Finite Element Model of the Left Ventricle With Mitral Valve: Insights Into Ischemic Mitral Regurgitation Jonathan F. Wenk, PhD, Zhihong Zhang,

Origins of the Cardiothoracic Surgery Network (CTSNet)

Who Do You Say You Are? The Annals of Thoracic Surgery

Residual Stress Impairs Pump Function After Surgical Ventricular Remodeling: A Finite Element Analysis Joe Luis Pantoja, Zhihong Zhang, Mehrzad Tartibi,

Measurement of Mitral Leaflet and Annular Geometry and Stress After Repair of Posterior Leaflet Prolapse: Virtual Repair Using a Patient-Specific Finite.

Use of Amiodarone After Major Lung Resection

Patient-Specific Finite Element–Based Analysis of Ventricular Myofiber Stress After Coapsys: Importance of Residual Stress Richard Carrick, BS, Liang.

Progressive Tracheal Erosion Consecutive to a Calcified Left Thyroid Lobe Anne B. Olland, MD, MS, Pierre-Emmanuel Falcoz, MD, PhD, Nicola Santelmo, MD,

Temporal Changes in Infarct Material Properties: An In Vivo Assessment Using Magnetic Resonance Imaging and Finite Element Simulations Jeremy R. McGarvey,

Anomalous Origin of Left Pulmonary Artery From Left Subclavian Artery

Maria Kalliopi Konstantinidou, MD, PhD, Neil Moat, MD, PhD

Sternal Closure With Tie Bands: A Word of Caution

Accessory Liver Lobe in the Left Thoracic Cavity

Biomechanics of Failed Pulmonary Autografts Compared With Normal Pulmonary Roots Aart Mookhoek, MD, Kapil Krishnan, PhD, Sam Chitsaz, MD, Heide Kuang,

Freddy Vermeulen, MD, Ben Swinkels, MD, Wim Jan van Boven, MD

Hybrid Management of a Giant Left Main Coronary Artery Aneurysm

Neurofibromatosis of the Esophagus

Comparison of the Young-Laplace Law and Finite Element Based Calculation of Ventricular Wall Stress: Implications for Postinfarct and Surgical Ventricular.

Embolized Methyl Methacrylate to the Right Atrium After Kyphoplasty

Wall Stress and Geometry of the Thoracic Aorta in Patients With Aortic Valve Disease Barry J. Doyle, PhD, Paul E. Norman, DS, Peter R. Hoskins, DSc, David.

Hisashi Ishikura, MD, PhD, Suguru Kimura, MD, PhD

Editorial Board, January 2010

Sarah C. Huen, MD, Chirag R. Parikh, MD, PhD

Completely Thrombosed Tricuspid Pouch Mimicking a Cardiac Tumor

Brian M. Cardis, MD, Derek A. Fyfe, MD, PhD, William T. Mahle, MD

Limitations of Hospital Volume as a Measure of Quality of Care for Coronary Artery Bypass Graft Surgery Karl F. Welke, MD, Mitchell J. Barnett, PharmD,

Anirudh Vinnakota, MS, Robert Stewart, MD, Gosta Pettersson, MD, PhD

Off-Pump Plication of Left Ventricular Aneurysm

Patrick O. Myers, MD The Annals of Thoracic Surgery

Specialty Training and Mortality After Esophageal Cancer Resection

Ascending Aortic Pseudoaneurysm as an Unusual Cause of Superior Vena Cava Syndrome Zhiqi Zhang, MD, Kanhua Yin, MD, Yongxin Sun, MD, PhD, Chunsheng Wang,

Invited Commentary The Annals of Thoracic Surgery

Robert Lee Replogle, September 30, 1931–May 9, 2016

A Target for Perioperative Blood Pressure During Cardiac Operations

The American Board of Thoracic Surgery: Update

“Transitions” for Cardiothoracic Surgeons Now Listed on the Web:

Posttraumatic Main Left Bronchial Rupture

Late Consequences of a Much Earlier Decision

Bicuspid Aortic Valves and Dilatation of the Ascending Aorta: Reply

The Impact of New Technology on Cardiothoracic Surgical Practice

Material Properties of CorCap Passive Cardiac Support Device

Surgical Reconstruction of Peripheral Pulmonary Arteries: Strategies, Outcomes, and New Classification Abdulaziz Al-Khaldi, MD, MS, Omar Tamimi, MD

Factors in the Selection and Management of Chest Tubes After Pulmonary Lobectomy: Results of a National Survey of Thoracic Surgeons Samuel S. Kim, MD,

Presentation transcript:

Effect of Adjustable Passive Constraint on the Failing Left Ventricle: A Finite-Element Model Study Choon-Sik Jhun, PhD, Jonathan F. Wenk, PhD, Zhihong Zhang, MS, Samuel T. Wall, PhD, Kay Sun, PhD, Hani N. Sabbah, PhD, Mark B. Ratcliffe, MD, Julius M. Guccione, PhD The Annals of Thoracic Surgery Volume 89, Issue 1, Pages 132-137 (January 2010) DOI: 10.1016/j.athoracsur.2009.08.075 Copyright © 2010 The Society of Thoracic Surgeons Terms and Conditions

Fig 1 (A) Three-dimensional finite-element mesh of the unloaded dilated canine left ventricle, 16 × 5 × 1 (longitudinal × transmural × circumferential). (B) Cut-away view of the interior cavity and wall cross section. The Annals of Thoracic Surgery 2010 89, 132-137DOI: (10.1016/j.athoracsur.2009.08.075) Copyright © 2010 The Society of Thoracic Surgeons Terms and Conditions

Fig 2 Epicardial pressure loading profile; pressure (P) is 3, 5, 7, and 9 mm Hg (time points for end diastole [ED] and end systole [ES] are not drawn to scale). The Annals of Thoracic Surgery 2010 89, 132-137DOI: (10.1016/j.athoracsur.2009.08.075) Copyright © 2010 The Society of Thoracic Surgeons Terms and Conditions

Fig 3 The effect of constraint on end-diastolic compliance; at baseline, 3, 5, 7, and 9 mm Hg of constraint. The compliance is shifted to the left as the level of passive constraint increases. The Annals of Thoracic Surgery 2010 89, 132-137DOI: (10.1016/j.athoracsur.2009.08.075) Copyright © 2010 The Society of Thoracic Surgeons Terms and Conditions

Fig 4 The effect of adjustable passive constraint on the stroke volume–end-diastolic pressure (Starling) relationship at baseline, 3, 5, 7, and 9 mm Hg of constraint. The Annals of Thoracic Surgery 2010 89, 132-137DOI: (10.1016/j.athoracsur.2009.08.075) Copyright © 2010 The Society of Thoracic Surgeons Terms and Conditions

Fig 5 Mean volume-weighted end-diastolic fiber stress as the level of passive constraint increases. Fiber stress at end-diastole was reduced by 18.3% (inner wall), 15.3% (mid wall), and 14.2% (outer wall) at a constraint level of 2.3 mm Hg. The Annals of Thoracic Surgery 2010 89, 132-137DOI: (10.1016/j.athoracsur.2009.08.075) Copyright © 2010 The Society of Thoracic Surgeons Terms and Conditions

Fig 6 Relationship between stroke volume at initial end-diastolic pressure (17 mm Hg). Note that any amount of constraint is associated with a reduction in stroke volume. A line of 10% reduction in stroke volume occurs at 2.3 mm Hg. The Annals of Thoracic Surgery 2010 89, 132-137DOI: (10.1016/j.athoracsur.2009.08.075) Copyright © 2010 The Society of Thoracic Surgeons Terms and Conditions