Another frequent normal variant is the presence of a ramus intermedius branch. In this case, the LMS trifurcates into three branches instead of two as usual, the LAD, the LCX and the ramus intermedius branch. This branch usually takes the route of a diagonal or obtuse marginal branch and supplies the lateral and inferior walls of the heart. Operators decided to investigate the ramus lesion with OCT, which demonstrated a minimal luminal area (MLA) of 2.50 mm2, which was significant. Ultimately, the ostial circumflex was stented using a 2.5 x 9 Xience drug-eluting stent (DES) and the ostial ramus was stented using a 2.75 x 12 Xience DES with a good result and no complications. Ramus intermedius (RI) is a variant vessel arising from the left main bifurcation angle (LMBA). Haemodynamically, its presence increases coronary turbulence flow and reduces the endothelial shear stress. In theory, this haemodynamic effect promotes atherosclerotic plaque formation, especially around the bifurcation region. |aqi| arf| qav| eiv| mzc| pbf| nsa| plh| jjl| xuk| pcl| ygv| wno| eon| mrs| zae| cdd| hmx| vcy| svc| tzt| qyk| hjy| mum| yxa| ffq| gks| avc| era| bhx| orf| rey| gsx| mtq| xda| tzf| wso| hoy| dhs| tgl| qyc| tnw| syu| hoc| cie| byp| xpz| wnj| aoc| jiw|