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Late effects on the left upper limb of subclavian flap aortoplasty
Insights
Sacrificing the left subclavian artery during infant coarctation of the aorta repair has minimal long-term effects. Subclavian flap aortoplasty remains a safe procedure despite minor arm shortening in some patients.
Area of Science:
- Pediatric Cardiology
- Thoracic Surgery
- Vascular Surgery
Background:
- Coarctation of the aorta is a congenital heart defect requiring surgical intervention in infancy.
- Subclavian flap aortoplasty is an effective surgical technique for coarctation of the aorta.
- The safety of sacrificing the left subclavian artery during this procedure requires further investigation.
Purpose of the Study:
- To evaluate the long-term effects of left subclavian artery sacrifice in infants undergoing subclavian flap aortoplasty for coarctation of the aorta.
Main Methods:
- A retrospective study of 16 patients 2-9 years post-surgery.
- Clinical evaluation of left upper limb symptoms.
- Anthropometric measurements of upper limb length.
Main Results:
- No major left upper limb symptoms were reported.
- Minor symptoms were noted in 7 out of 16 children.
- All patients exhibited left upper limb shortening, localized to the upper arm.
Conclusions:
- The benefits of subclavian flap aortoplasty for coarctation of the aorta are not significantly compromised by left subclavian artery sacrifice.
- Minor limb shortening is a potential consequence but does not typically cause major functional deficits.
Abstract:
The subclavian flap aortoplasty gives excellent short-term and medium-term results when performed on infants with coarctation of the aorta. This study was devised to determine whether there were any detrimental effects to the sacrifice of the left subclavian artery in infancy. Sixteen patients were studied 2 to 9 years post-operatively. Clinical evaluation revealed no major symptoms in the left upper limb. However, in seven children, minor symptoms had been noted by the parents. Anthropometric measurements revealed a shortening of the left upper limb in all patients; when these measurements were compared with those in normal subjects, the shortening was localized to the left upper arm. Four papers which mention the effect on the left arm of ligation of the subclavian artery in childhood during the Blalock-Taussig operation are discussed. It is concluded that the excellent results from the subclavian flap aortoplasty are not compromised by the minor effects of ligating the left subclavian artery in infancy.