1
|
Shaji S, Zafar MA, Christopher A, Saraf A, Hoskoppal A, Lanford L, Kreutzer J, Olivieri L, Alsaied T. Augmented Biphasic Breathing Using Sniff and an Oral Positive Expiratory Pressure Device (Sniff-PEP) in Fontan Patients. Pediatr Cardiol 2024:10.1007/s00246-024-03598-3. [PMID: 39028352 DOI: 10.1007/s00246-024-03598-3] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 05/28/2024] [Accepted: 07/15/2024] [Indexed: 07/20/2024]
Abstract
The use of an oral positive expiratory pressure device (oPEP) with sniff breathing (Sniff-PEP) mimics biphasic ventilation. Biphasic ventilation increases pulmonary blood flow and cardiac output in Fontan patients. The aim of this study was to assess the effect of Sniff-PEP on Fontan flow velocities. A single-center, pilot, prospective study was carried out in 15 subjects with Fontan circulation enrolled to use the oPEP device for 1 month. Subjects were instructed on Sniff-PEP and to use the device for 10-15 min 3-4 times a day. Measurements of flow velocity and cardiac output were measured via echocardiogram and quality of life assessments were performed at baseline and 4-6 weeks later. The mean age at enrollment was 19.9 ± 8.7 years (age range of 10-37 years). 7 patients (47%) had dominant left ventricle and 8 (53%) had an open fenestration. There was a statistically significant increase in flow velocities in the hepatic vein from 27.5 ± 7.6 to 35.1 ± 11.3 cm/s (p = 0.003), left pulmonary artery from 51.6 ± 16.6 to 57.6 ± 21.1 cm/s (p = 0.01), and right pulmonary artery from 43.1 ± 14.2 to 45.8 ± 17.2 cm/s (p = 0.04). With chronic use, the mean fenestration gradient slightly decreased from 4.5 ± 1.6 to 4.1 ± 1.9 mmHg but the difference was not statistically significant (p = 0.14). oPEP device therapy increased flow velocity in several areas in the Fontan circulation with acute use. Further studies are needed to assess the effects long term.Clinical Trial Registration: URL: https://clinicaltrials.gov . Unique identifier: NCT03251742.
Collapse
Affiliation(s)
- Shawn Shaji
- Department of Pediatrics, Heart Institute, UPMC Children's Hospital of Pittsburgh, University of Pittsburgh School of Medicine, 4401 Penn Avenue, Pittsburgh, PA, 15224, USA
| | - Muhammad A Zafar
- Department of Internal Medicine, University of Cincinnati College of Medicine, Cincinnati, USA
| | - Adam Christopher
- Department of Pediatrics, Heart Institute, UPMC Children's Hospital of Pittsburgh, University of Pittsburgh School of Medicine, 4401 Penn Avenue, Pittsburgh, PA, 15224, USA
| | - Anita Saraf
- Department of Pediatrics, Heart Institute, UPMC Children's Hospital of Pittsburgh, University of Pittsburgh School of Medicine, 4401 Penn Avenue, Pittsburgh, PA, 15224, USA
| | - Arvind Hoskoppal
- Department of Pediatrics, Heart Institute, UPMC Children's Hospital of Pittsburgh, University of Pittsburgh School of Medicine, 4401 Penn Avenue, Pittsburgh, PA, 15224, USA
| | - Lizabeth Lanford
- Department of Pediatrics, Heart Institute, UPMC Children's Hospital of Pittsburgh, University of Pittsburgh School of Medicine, 4401 Penn Avenue, Pittsburgh, PA, 15224, USA
| | - Jacqueline Kreutzer
- Department of Pediatrics, Heart Institute, UPMC Children's Hospital of Pittsburgh, University of Pittsburgh School of Medicine, 4401 Penn Avenue, Pittsburgh, PA, 15224, USA
| | - Laura Olivieri
- Department of Pediatrics, Heart Institute, UPMC Children's Hospital of Pittsburgh, University of Pittsburgh School of Medicine, 4401 Penn Avenue, Pittsburgh, PA, 15224, USA
| | - Tarek Alsaied
- Department of Pediatrics, Heart Institute, UPMC Children's Hospital of Pittsburgh, University of Pittsburgh School of Medicine, 4401 Penn Avenue, Pittsburgh, PA, 15224, USA.
| |
Collapse
|
2
|
Hassan A, Chegondi M, Porayette P. Five decades of Fontan palliation: What have we learned? What should we expect? J Int Med Res 2023; 51:3000605231209156. [PMID: 37910851 PMCID: PMC10621298 DOI: 10.1177/03000605231209156] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/14/2023] [Accepted: 10/04/2023] [Indexed: 11/03/2023] Open
Abstract
The Fontan procedure is the final palliative surgery in a series of staged surgeries to reroute the systemic venous blood flow directly to the lungs, with the ventricle(s) pumping oxygenated blood to the body. Advances in medical and surgical techniques have improved patients' overall survival after the Fontan procedure. However, Fontan-associated chronic comorbidities are common. In addition to chronic cardiac dysfunction and arrhythmias, complications involving other organs such as the liver, lungs, intestine, lymphatic system, brain, and blood frequently occur. This narrative review focuses on the immediate and late consequences in children, pregnant women, and other adults with Fontan circulation. In addition, we describe the technical advancements that might change the way single-ventricle patients are managed in future.
Collapse
Affiliation(s)
- Adil Hassan
- Department of Internal Medicine, University of Iowa, Iowa City, IA 52242, USA
| | - Madhuradhar Chegondi
- Division of Pediatric Critical Care Medicine, Stead Family Children’s Hospital, University of Iowa, Iowa City, IA 52242, USA
| | - Prashob Porayette
- Division of Pediatric Cardiology, Stead Family Children’s Hospital, University of Iowa, Iowa City, IA 52242, USA
| |
Collapse
|
3
|
Abdulkarim A, Shaji S, Elfituri M, Gunsaulus M, Zafar MA, Zaidi AN, Pass RH, Feingold B, Kurland G, Kreutzer J, Ghassemzadeh R, Goldstein B, West S, Alsaied T. Pulmonary Complications in Patients With Fontan Circulation: JACC Review Topic of the Week. J Am Coll Cardiol 2023; 81:2434-2444. [PMID: 37344046 DOI: 10.1016/j.jacc.2023.04.036] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 02/07/2023] [Revised: 04/03/2023] [Accepted: 04/10/2023] [Indexed: 06/23/2023]
Abstract
The Fontan operation has resulted in significant improvement in survival of patients with single ventricle physiology. As a result, there is a growing population of individuals with Fontan physiology reaching adolescence and adulthood. Despite the improved survival, there are long-term morbidities associated with the Fontan operation. Pulmonary complications are common and may contribute to both circulatory and pulmonary insufficiency, leading ultimately to Fontan failure. These complications include restrictive lung disease, sleep abnormalities, plastic bronchitis, and cyanosis. Cyanosis post-Fontan procedure can be attributed to multiple causes including systemic to pulmonary venous collateral channels and pulmonary arteriovenous malformations. This review presents the unique cardiopulmonary interactions in the Fontan circulation. Understanding the cardiopulmonary interactions along with improved recognition and treatment of pulmonary abnormalities may improve the long-term outcomes in this growing patient population. Interventions focused on improving pulmonary function including inspiratory muscle training and endurance training have shown a promising effect post-Fontan procedure.
Collapse
Affiliation(s)
- Ali Abdulkarim
- Department of Pediatrics, Icahn School of Medicine at Mount Sinai, New York, New York, USA
| | - Shawn Shaji
- Heart Institute, University of Pittsburgh Medical Center, Children's Hospital of Pittsburgh, Pittsburgh, Pennsylvania, USA; Division of Pediatric Cardiology, Department of Pediatrics, University of Pittsburgh School of Medicine, Pittsburgh, Pennsylvania, USA
| | - Mahmud Elfituri
- Department of Pediatrics, Icahn School of Medicine at Mount Sinai, New York, New York, USA
| | - Megan Gunsaulus
- Heart Institute, University of Pittsburgh Medical Center, Children's Hospital of Pittsburgh, Pittsburgh, Pennsylvania, USA; Division of Pediatric Cardiology, Department of Pediatrics, University of Pittsburgh School of Medicine, Pittsburgh, Pennsylvania, USA
| | - Muhammad A Zafar
- Division of Pulmonary and Critical Care Medicine, Department of Internal Medicine, University of Cincinnati College of Medicine, Cincinnati, Ohio, USA
| | - Ali N Zaidi
- Mount Sinai Heart, Mount Sinai Kravis Children's Heart Center, Icahn School of Medicine at Mount Sinai, New York, New York, USA
| | - Robert H Pass
- Department of Pediatrics, Icahn School of Medicine at Mount Sinai, Division of Pediatric Cardiology and Mount Sinai Kravis Children's Heart Center, New York, New York, USA
| | - Brian Feingold
- Heart Institute, University of Pittsburgh Medical Center, Children's Hospital of Pittsburgh, Pittsburgh, Pennsylvania, USA; Division of Pediatric Cardiology, Department of Pediatrics, University of Pittsburgh School of Medicine, Pittsburgh, Pennsylvania, USA
| | - Geoffrey Kurland
- University of Pittsburgh Medical Center, Children's Hospital of Pittsburgh, Pittsburgh, Pennsylvania, USA; Division of Pediatric Pulmonology, Department of Pediatrics, University of Pittsburgh School of Medicine, Pittsburgh, Pennsylvania, USA
| | - Jacqueline Kreutzer
- Heart Institute, University of Pittsburgh Medical Center, Children's Hospital of Pittsburgh, Pittsburgh, Pennsylvania, USA; Division of Pediatric Cardiology, Department of Pediatrics, University of Pittsburgh School of Medicine, Pittsburgh, Pennsylvania, USA
| | - Rod Ghassemzadeh
- University of Pittsburgh Medical Center, Children's Hospital of Pittsburgh, Department of Critical Care, Pittsburgh, Pennsylvania, USA
| | - Bryan Goldstein
- Heart Institute, University of Pittsburgh Medical Center, Children's Hospital of Pittsburgh, Pittsburgh, Pennsylvania, USA; Division of Pediatric Cardiology, Department of Pediatrics, University of Pittsburgh School of Medicine, Pittsburgh, Pennsylvania, USA
| | - Shawn West
- Heart Institute, University of Pittsburgh Medical Center, Children's Hospital of Pittsburgh, Pittsburgh, Pennsylvania, USA; Division of Pediatric Cardiology, Department of Pediatrics, University of Pittsburgh School of Medicine, Pittsburgh, Pennsylvania, USA
| | - Tarek Alsaied
- Heart Institute, University of Pittsburgh Medical Center, Children's Hospital of Pittsburgh, Pittsburgh, Pennsylvania, USA; Division of Pediatric Cardiology, Department of Pediatrics, University of Pittsburgh School of Medicine, Pittsburgh, Pennsylvania, USA.
| |
Collapse
|
4
|
van Loon K, Minkhorst R, Ter Heide H, Breur HMP, Kruyt MC, Schlosser TPC. Perioperative Management of an Adolescent Fontan Patient with Narrowing of the Aortopulmonary Space for Posterior Scoliosis Surgery. Semin Cardiothorac Vasc Anesth 2022; 26:221-225. [PMID: 35953886 PMCID: PMC9460710 DOI: 10.1177/10892532221114285] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/19/2022]
Abstract
Congenital cardiac patients who received neonatal reconstructive aortic arch surgery are
at risk of aortopulmonary space narrowing with compression of the left pulmonary artery
and left main bronchus (LMB) later in life. We discuss a challenging adolescent single
ventricle patient who presented for surgical treatment of a non-idiopathic thoracic
scoliosis (posterior spinal fusion) with severe stenosis of the LMB and left pulmonary
artery due to a narrow aortopulmonary space. Careful preoperative imaging, evaluation, and
decision making resulted in successful surgical treatment and uneventful perioperative
course.
Collapse
Affiliation(s)
- Kim van Loon
- Division of Anesthesiology, Intensive Care and Emergency Medicine, 89098University Medical Center Utrecht, Utrecht, The Netherlands
| | - Remco Minkhorst
- Division of Anesthesiology, Intensive Care and Emergency Medicine, 89098University Medical Center Utrecht, Utrecht, The Netherlands
| | - Henriette Ter Heide
- Department of Pediatric Cardiology, Wilhelmina Children's Hospital, 89098University Medical Center Utrecht, Utrecht, The Netherlands
| | - Hans M P Breur
- Department of Pediatric Cardiology, Wilhelmina Children's Hospital, 89098University Medical Center Utrecht, Utrecht, The Netherlands
| | - Moyo C Kruyt
- Department of Orthopaedic Surgery, 8124University Medical Center Utrecht, Utrecht, The Netherlands
| | - Tom P C Schlosser
- Department of Orthopaedic Surgery, 8124University Medical Center Utrecht, Utrecht, The Netherlands
| |
Collapse
|
5
|
Wald R, Mertens L. Hypoplastic Left Heart Syndrome Across the Lifespan: Clinical Considerations for Care of the Fetus, Child, and Adult. Can J Cardiol 2022; 38:930-945. [PMID: 35568266 DOI: 10.1016/j.cjca.2022.04.028] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/20/2022] [Revised: 04/22/2022] [Accepted: 04/24/2022] [Indexed: 12/14/2022] Open
Abstract
Hypoplastic left heart syndrome (HLHS) is the most common anatomic lesion in children born with single ventricle physiology and is characterized by the presence of a dominant right ventricle and a hypoplastic left ventricle along with small left-sided heart structures. Diagnostic subgroups of HLHS reflect the extent of inflow and outflow obstruction at the aortic and mitral valves, specifically stenosis or atresia. If left unpalliated, HLHS is a uniformly fatal lesion in infancy. Following introduction of the Norwood operation, early survival has steadily improved over the past four decades, mirroring advances in operative and peri-operative management as well as reflecting refinements in patient surveillance and interstage clinical care. Notably, survival following staged palliation has increased from 0% to a 5-year survival of 60-65% for children in some centres. Despite the prevalence of HLHS in childhood with relatively favourable surgical outcomes in contemporary series, this cohort is only now reaching early adult life and longer-term outcomes have yet to be elucidated. In this article we focus on contemporary clinical management strategies for patients with HLHS across the lifespan, from fetal to adult life. Nomenclature and diagnostic considerations are discussed and current literature pertaining to putative genetic etiologies is reviewed. The spectrum of fetal and pediatric interventional strategies, both percutaneous and surgical, are described. Clinical, patient-reported and neurodevelopmental outcomes of HLHS are delineated. Finally, note is made of current areas of clinical uncertainty and suggested directions for future research are highlighted.
Collapse
Affiliation(s)
- Rachel Wald
- Labatt Family Heart Centre, Division of Cardiology, Hospital for Sick Children, Department of Pediatrics, University of Toronto, Toronto, Ontario, Canada; Peter Munk Cardiac Centre, Division of Cardiology, University Health Network, Department of Medicine,University of Toronto, Toronto, Ontario, Canada
| | - Luc Mertens
- Labatt Family Heart Centre, Division of Cardiology, Hospital for Sick Children, Department of Pediatrics, University of Toronto, Toronto, Ontario, Canada; Peter Munk Cardiac Centre, Division of Cardiology, University Health Network, Department of Medicine,University of Toronto, Toronto, Ontario, Canada
| |
Collapse
|
6
|
Laohachai K, Ayer J. Impairments in Pulmonary Function in Fontan Patients: Their Causes and Consequences. Front Pediatr 2022; 10:825841. [PMID: 35498782 PMCID: PMC9051243 DOI: 10.3389/fped.2022.825841] [Citation(s) in RCA: 6] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 11/30/2021] [Accepted: 02/23/2022] [Indexed: 11/26/2022] Open
Abstract
Patients with a Fontan circulation lack a sub-pulmonary ventricle with pulmonary blood flow passively redirected to the lungs. In the Fontan circulation, ventilation has a significant influence on pulmonary blood flow and cardiac output both at rest and with exercise. Children and adults with a Fontan circulation have abnormalities in lung function. In particular, restrictive ventilatory patterns, as measured by spirometry, and impaired gas transfer, as measured by the diffusing capacity of carbon monoxide, have been frequently observed. These abnormalities in lung function are associated with reduced exercise capacity and quality of life. Moderate to severe impairment in lung volumes is independently associated with reduced survival in adults with congenital heart disease. Skeletal and inspiratory muscle weakness has also been reported in patients with a Fontan circulation, with the prospect of improving respiratory muscle function through exercise training programs. In this review, we will present data on cardiopulmonary interactions in the Fontan circulation, the prevalence and severity of impaired lung function, and respiratory muscle function in this population. We will discuss potential causes for and consequence of respiratory impairments, and their impact on exercise capacity and longer-term Fontan outcome. We aim to shed light on possible strategies to reduce morbidity by improving respiratory function in this growing population of patients.
Collapse
Affiliation(s)
- Karina Laohachai
- Cardiology Department, Women's and Children's Hospital, Adelaide, SA, Australia.,Faculty of Medicine and Health, The University of Sydney, Sydney, NSW, Australia
| | - Julian Ayer
- Faculty of Medicine and Health, The University of Sydney, Sydney, NSW, Australia.,The Heart Centre for Children, Children's Hospital at Westmead, Sydney, NSW, Australia
| |
Collapse
|
7
|
van der Woude SFS, Rijnberg FM, Hazekamp MG, Jongbloed MRM, Kenjeres S, Lamb HJ, Westenberg JJM, Roest AAW, Wentzel JJ. The Influence of Respiration on Blood Flow in the Fontan Circulation: Insights for Imaging-Based Clinical Evaluation of the Total Cavopulmonary Connection. Front Cardiovasc Med 2021; 8:683849. [PMID: 34422920 PMCID: PMC8374887 DOI: 10.3389/fcvm.2021.683849] [Citation(s) in RCA: 15] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/22/2021] [Accepted: 07/05/2021] [Indexed: 12/18/2022] Open
Abstract
Congenital heart disease is the most common birth defect and functionally univentricular heart defects represent the most severe end of this spectrum. The Fontan circulation provides an unique solution for single ventricle patients, by connecting both caval veins directly to the pulmonary arteries. As a result, the pulmonary circulation in Fontan palliated patients is characterized by a passive, low-energy circulation that depends on increased systemic venous pressure to drive blood toward the lungs. The absence of a subpulmonary ventricle led to the widely believed concept that respiration, by sucking blood to the pulmonary circulation during inspiration, is of great importance as a driving force for antegrade blood flow in Fontan patients. However, recent studies show that respiration influences pulsatility, but has a limited effect on net forward flow in the Fontan circulation. Importantly, since MRI examination is recommended every 2 years in Fontan patients, clinicians should be aware that most conventional MRI flow sequences do not capture the pulsatility of the blood flow as a result of the respiration. In this review, the unique flow dynamics influenced by the cardiac and respiratory cycle at multiple locations within the Fontan circulation is discussed. The impact of (not) incorporating respiration in different MRI flow sequences on the interpretation of clinical flow parameters will be covered. Finally, the influence of incorporating respiration in advanced computational fluid dynamic modeling will be outlined.
Collapse
Affiliation(s)
- Séline F S van der Woude
- Department of Cardiology, Biomedical Engineering, Biomechanics Laboratory, Rotterdam, Netherlands
| | - Friso M Rijnberg
- Department of Cardiothoracic Surgery, Leiden University Medical Center, Leiden, Netherlands
| | - Mark G Hazekamp
- Department of Cardiothoracic Surgery, Leiden University Medical Center, Leiden, Netherlands
| | - Monique R M Jongbloed
- Department of Anatomy, Embryology and Cardiology, Leiden University Medical Center, Leiden, Netherlands
| | - Sasa Kenjeres
- Department of Chemical Engineering, Faculty of Applied Sciences, Delft University of Technology and J. M. Burgerscentrum Research School for Fluid Mechanics, Delft, Netherlands
| | - Hildo J Lamb
- Department of Radiology, Leiden University Medical Center, Leiden, Netherlands
| | - Jos J M Westenberg
- Department of Radiology, Leiden University Medical Center, Leiden, Netherlands
| | - Arno A W Roest
- Department of Pediatric Cardiology, Leiden University Medical Center, Leiden, Netherlands
| | - Jolanda J Wentzel
- Department of Cardiology, Biomedical Engineering, Biomechanics Laboratory, Rotterdam, Netherlands
| |
Collapse
|