Short- and long-term evolution of unstented nonocclusive coronary dissection after coronary angioplasty
Alberto Cappelletti, MDa,
Alberto Margonato, MD, FESCa,
Giuseppe Rosano, MD, FACCa,
Alessandra Mailhac, MDa,
Fabrizio Veglia, MD*,
Antonio Colombo, MD, FACC and
Sergio Lorenzo Chierchia, MD, FESC, FACCa
a Division of Cardiology, Istituto Scientifico H San Raffaele, Milan, Italy
* Unit of Biostatistics, Istituto Scientifico H San Raffaele, Milan, Italy
Unit of Interventional Cardiology, Istituto Scientifico H San Raffaele, Milan, Italy

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Figure 1 Evolution of the dissections during the first 24 h and at six-month follow-up. A, B, C, D = degree of dissection (see text for explanation).
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Figure 2 (A) Eccentric stenosis of the proximal segment of the left anterior descending coronary artery; (B) PTCA final result: a type B dissection is observed at the site of dilation. After 24 h this result was unchanged; (C) angiography six-months after the procedure.
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