Left arm structure and function late after subclavian flap repair of aortic coarctation in childhood

• Published in: Cardiology in the young 2019-07, Vol.29 (7), p.856-861
• Main Authors: Dennis, Mark R, Cusick, Anne, Borilovic, Jacinta, Nicholson, Calum, Derwin, Tanya, Puranik, Rajesh, Celermajer, David S
• Format: Article
• Language: English
• Subjects: Adult; Adults; Anastomosis; Anastomosis, Surgical - adverse effects; Aorta; Aortic Coarctation - surgery; Arm; Arm - blood supply; Arm - pathology; Arm - physiopathology; Blood flow; Cardiology; Cardiovascular disease; Cardiovascular diseases; Child; Child, Preschool; Childhood; Children; Cohort Studies; Congenital diseases; Coronary artery disease; Coronary vessels; Data collection; Family medical history; Female; Flow velocity; Functional testing; Grip strength; Hand Strength; Handedness; Heart; Heart diseases; Humans; Hypertension; Infant; Ligation; Magnetic resonance imaging; Male; Males; Middle Aged; Muscles; NMR; Nuclear magnetic resonance; Patients; Postoperative Complications - epidemiology; Repair; Structure-function relationships; Subclavian Artery - surgery; Surgery; Surgical Flaps - adverse effects; Systematic review; Ultrasonic imaging; Ultrasound; Veins & arteries
• ISSN: 1047-9511; 1467-1107
• DOI: 10.1017/S1047951119000386

Concerns exist over the long-term consequences of subclavian artery ligation in subclavian flap repair for coarctation of the aorta. We sought to analyse upper limb structural and functional performance in adults who have had surgery in childhood for coarctation of the aorta, using either subclavian flap repair or end to end aortic anastomosis. Two-group observational design using anatomical and upper limb functional performance measures. Purposive sampling from our specialist adult congenital heart disease database of patients who received subclavian flap repair or end to end anastomosis for coarctation of the aorta as children. Upper limb measurements were completed using MRI and blood flow velocity with ultrasound imaging. Bilateral standardised upper limb functional testing of assessment of strength, dexterity and a standardised self-report of upper limb disability was completed. Eighteen right-handed patients, 9 with subclavian repair, (38 ± 12 years, 78% males) were studied. Age at repair was 4.7 ± 5.9 years; mean time from initial repair 32 ± 9 years. The subclavian group had a larger difference between right and left when compared the end to end anastomosis group in: lower arm muscle mass (94.5 ± 42.3 mls versus 37.8 ± 94.5 mls, p = 0.008), lower arm maximal cross-sectional area, (5.9 ± 2.8 cm2 versus 2.9 ± 2.6 cm2, p = 0.038) and grip strength (14.7 ± 8.3 lbs versus 5.9 ± 5.3 lbs, p = 0.016) There were no significant functional differences between groups. In adults with repaired coarctation of the aorta, those with subclavian flap repair had a greater right to left arm muscle mass and grip strength differential when compared to those with end to end anastomosis repair.