Tomoaki Murakami, MD, PhD, Atsuhito Takeda, MD, PhD

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Enhanced Aortic Pressure Wave Reflection in Patients After Repair of Aortic Coarctation Tomoaki Murakami, MD, PhD, Atsuhito Takeda, MD, PhD The Annals of Thoracic Surgery Volume 80, Issue 3, Pages 995-999 (September 2005) DOI: 10.1016/j.athoracsur.2005.03.055 Copyright © 2005 The Society of Thoracic Surgeons Terms and Conditions

Fig 1 Schematic representation of augmentation index and inflection time. The augmentation index is the ratio of augmentation to the pulse pressure. The inflection time is defined as the interval between the onset of a systolic blood pressure waveform and the inflection point. The Annals of Thoracic Surgery 2005 80, 995-999DOI: (10.1016/j.athoracsur.2005.03.055) Copyright © 2005 The Society of Thoracic Surgeons Terms and Conditions

Fig 2 (A) An ascending aortic pressure waveform in patient after extended end-to-end anastomosis of the aorta (6 years old). (B) Descending aortic pressure waveform in a patient after coarctation repair (same patient as in fig 2A). (C) Ascending aortic pressure waveform in patient with an atrial septal defect (6 years old). (D) Descending aortic pressure waveform in the same patient with atrial septal defect (same patient as in fig 2C). The Annals of Thoracic Surgery 2005 80, 995-999DOI: (10.1016/j.athoracsur.2005.03.055) Copyright © 2005 The Society of Thoracic Surgeons Terms and Conditions

Fig 3 Relationship between age and the corrected augmentation indices in the ascending aorta (left) z = −3.883; p = 0.0001, and the descending aorta (right) z = −0.579; p = 0.5628) (normal control after arch repair). (AAo = ascending aorta; DAo = descending aorta.) The Annals of Thoracic Surgery 2005 80, 995-999DOI: (10.1016/j.athoracsur.2005.03.055) Copyright © 2005 The Society of Thoracic Surgeons Terms and Conditions

Fig 4 Pressure waveforms during pull-back of the catheter from the ascending to the descending aorta in a control subject (patient with atrial septal defect) (top graph), and a patient after repair of coarctation at the inflection point (bottom graph). The Annals of Thoracic Surgery 2005 80, 995-999DOI: (10.1016/j.athoracsur.2005.03.055) Copyright © 2005 The Society of Thoracic Surgeons Terms and Conditions