Same case as mdr id 2134265-2017-02955 and 2134265-2017-02956.(b)(4).It was reported that balloon rupture and vessel dissection occurred.In (b)(6) 2013, the patient underwent coronary angiography which revealed a 90% ostial and proximal stenosis in the third obtuse marginal (om) branch.Two days later, the patient underwent angioplasty to the third om using multiple balloons including 2.0 x 20 mm apex, 2.0 x 16mm apex nc, noncompliant balloon, and 2.5 x 20 mm apex balloons with multiple inflations at atmospheric pressures of up to 28 mmhg.However, two of the balloons ruptured and the proximal stenosis involving large third om was clearly non-dilatable; thus, it was not stented.The patient was scheduled for rotational atherectomy and provisional stenting.Following angioplasty of third om, there were multiple dissection planes noted; however, there was still fairly good flow into the distal disease-free segment of the vessel and the procedure was completed.No further complications were reported.
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