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Bull-Worker syncopy: Congenital subclavian steal syndrome following isometric exercise


A patient with congenital great artery abnormality facilitating subclavian steal is presented. Sustained isometric upper body exercise, using a “Bull-Worker,” resulted in vertebrobasilar steal symptoms (subclavian steal syndrome) shortly after exercise. A mechanism for the timing of symptoms following isometric exercise is suggested.

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Correspondence to Dr. Richard A. Perryman.

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Perryman, R.A., Bayne, E. & Miller, R.H. Bull-Worker syncopy: Congenital subclavian steal syndrome following isometric exercise. Pediatr Cardiol 12, 105–106 (1991). https://doi.org/10.1007/BF02238413

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Key Words

  • Syncope
  • Subclavian steal syndrome
  • Isometric exercise