Concertina or Accordion effect during angioplasty – Video and pictures brought to you by the cardiac forum medical videos section. Concertina Video for the first time on net.

Concertina or accordion effect is something where you see pseudo lesions in coronary arteries during angioplasty. These lesions may look like spasm or dissection or spontaneous thrombus formation to the unfamiliar eye. These are in fact, caused by the partial stretching and straightening of a tortuous vessel during the insertion of a stiff guide wire. The partially straightened vessel will look like coils of intestine. [ Just the shape of the vessel - given for more understanding for a less experienced fellow]

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