Resting respiratory lung volumes are “healthier” than exercise respiratory volumes in different types of palliated or corrected congenital heart disease
Corresponding Author
Marianna Fabi MD, PhD
Department of Cardiac, Thoracic and Vascular Sciences, Paediatric Cardiology and Adult Congenital Unit, S. Orsola-Malpighi Hospital, University of Bologna, Bologna, Italy
Correspondence Marianna Fabi, Department of Cardiac, Thoracic and Vascular Sciences, Paediatric Cardiology and Adult Congenital Unit, University of Bologna, S. Orsola-Malpighi Hospital, Via Massarenti 9, 40138 Bologna, Italy.
Email: [email protected]
Search for more papers by this authorAnna Balducci MD, PhD
Department of Cardiac, Thoracic and Vascular Sciences, Paediatric Cardiology and Adult Congenital Unit, S. Orsola-Malpighi Hospital, University of Bologna, Bologna, Italy
Search for more papers by this authorSalvatore Cazzato MD, PhD
Department of Mother and Child Health, Azienda Ospedaliero Universitaria Ospedali Riuniti di Ancona Umberto I G M Lancisi G Salesi, Ancona, Marche, Italy
Search for more papers by this authorArianna Aceti MD, PhD
Department of Pediatrics, S. Orsola-Malpighi Hospital, University of Bologna, Bologna, Italy
Search for more papers by this authorMarcella Gallucci MD
Department of Pediatrics, S. Orsola-Malpighi Hospital, University of Bologna, Bologna, Italy
Search for more papers by this authorEmanuela Di Palmo MD
Department of Pediatrics, S. Orsola-Malpighi Hospital, University of Bologna, Bologna, Italy
Search for more papers by this authorGaetano Gargiulo MD
Department of Pediatric and Adult Congenital Heart Cardiac Surgery, S. Orsola-Malpighi Hospital, University of Bologna, Bologna, Italy
Search for more papers by this authorAndrea Donti MD
Department of Cardiac, Thoracic and Vascular Sciences, Paediatric Cardiology and Adult Congenital Unit, S. Orsola-Malpighi Hospital, University of Bologna, Bologna, Italy
Search for more papers by this authorMarcello Lanari MD, PhD
Department of Pediatrics, S. Orsola-Malpighi Hospital, University of Bologna, Bologna, Italy
Search for more papers by this authorCorresponding Author
Marianna Fabi MD, PhD
Department of Cardiac, Thoracic and Vascular Sciences, Paediatric Cardiology and Adult Congenital Unit, S. Orsola-Malpighi Hospital, University of Bologna, Bologna, Italy
Correspondence Marianna Fabi, Department of Cardiac, Thoracic and Vascular Sciences, Paediatric Cardiology and Adult Congenital Unit, University of Bologna, S. Orsola-Malpighi Hospital, Via Massarenti 9, 40138 Bologna, Italy.
Email: [email protected]
Search for more papers by this authorAnna Balducci MD, PhD
Department of Cardiac, Thoracic and Vascular Sciences, Paediatric Cardiology and Adult Congenital Unit, S. Orsola-Malpighi Hospital, University of Bologna, Bologna, Italy
Search for more papers by this authorSalvatore Cazzato MD, PhD
Department of Mother and Child Health, Azienda Ospedaliero Universitaria Ospedali Riuniti di Ancona Umberto I G M Lancisi G Salesi, Ancona, Marche, Italy
Search for more papers by this authorArianna Aceti MD, PhD
Department of Pediatrics, S. Orsola-Malpighi Hospital, University of Bologna, Bologna, Italy
Search for more papers by this authorMarcella Gallucci MD
Department of Pediatrics, S. Orsola-Malpighi Hospital, University of Bologna, Bologna, Italy
Search for more papers by this authorEmanuela Di Palmo MD
Department of Pediatrics, S. Orsola-Malpighi Hospital, University of Bologna, Bologna, Italy
Search for more papers by this authorGaetano Gargiulo MD
Department of Pediatric and Adult Congenital Heart Cardiac Surgery, S. Orsola-Malpighi Hospital, University of Bologna, Bologna, Italy
Search for more papers by this authorAndrea Donti MD
Department of Cardiac, Thoracic and Vascular Sciences, Paediatric Cardiology and Adult Congenital Unit, S. Orsola-Malpighi Hospital, University of Bologna, Bologna, Italy
Search for more papers by this authorMarcello Lanari MD, PhD
Department of Pediatrics, S. Orsola-Malpighi Hospital, University of Bologna, Bologna, Italy
Search for more papers by this authorAbstract
Aims
Cardiac surgery has improved life expectancy of patients with congenital heart diseases (CHDs). Exercise capacity is an important determinant of survival in patients with CHDs. There is a lack of studies focusing on the role of resting respiratory performance in reducing exercise tolerance in these patients.
Objectives
To determine the prevalence and severity of respiratory functional impairment in different types of corrected/palliated CHDs, and its impact on an exercise test.
Materials and Methods
Retrospective single-center study involving 168 corrected/palliated patients with CHD and 52 controls. Patients CHD were divided into subgroups according to the presence of native pulmonary blood flow or total cavopulmonary connection (TCPC). All subjects performed complete pulmonary function tests and gas diffusion; patients with CHD also performed cardiopulmonary exercise test (CPX).
Results
Mean values of lung volumes were within the normal range in all CHD groups. Comparing to controls, patients with the reduced pulmonary flow and with TCPC had the highest reduction in lung volumes. CPX was reduced in all groups, most severely in TCPC, and it was correlated to decreased dynamic volumes in all CHD groups except in TCPC. Younger age at intervention and number of surgical operations negatively affected lung volumes.
Conclusions
Respiratory function is within the normal range in our patients with different CHDs at rest but altered in all CHDs during exercise when cardiorespiratory balance is likely to be inadequate. Comparing the different groups, patients with reduced pulmonary flow and TCPC are the most impaired.
CONFLICT OF INTERESTS
The authors declare that there are no conflict of interests.
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