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  • Title: [Syncopal angina caused by sinus arrest; cured by transluminal coronary angioplasty and calcium inhibitor].
    Author: Bensaid J, Lagrange P, Cassat C, Doumeix JJ, Maudière A, Virot P.
    Journal: Arch Mal Coeur Vaiss; 1994 Oct; 87(10):1365-70. PubMed ID: 7771883.
    Abstract:
    The authors report the case of a 42 year old man who smoked and who presented with recurrent spontaneous anginal chest pain followed by syncope due to sinus arrest. The mechanism underlying these symptoms was spasm of the left circumflex artery at the site of severe stenosis of its middle segment just before the origin of the sinus node artery. Treatment with a calcium antagonist with transluminal coronary angioplasty of the narrowed segment of the circumflex artery resulted in complete regression of all symptoms with a follow-up of 15 months. Seven other reports of the same type were found in the literature concerning 6 men and 1 woman, with an average age of 49 years, presenting with the same symptoms and sinus arrest associated with the minimal coronary artery disease. The proof of coronary spasm was documented in 6 of the 7 cases by a positive ergometrine stress test or by the observation of spontaneous spasm during coronary angiography or rapid atrial pacing. The outcome was good with calcium antagonist therapy in 5 cases, and with slow release nitrate derivatives in 1 case. One patient, treated by betablockers, died. It is useful to investigate some sino-atrial blocks to diagnose the underlying ischaemic mechanism as the patients may be treated simply with calcium antagonists rather than undergo implantation of a pacemaker.
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