sheath

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Since the MEGA has no step down between the catheter shaft and the balloon material, it may be inserted sheathless or through an 8 Fr.
Although no infrageneric classification exists for the genus, its species can be divided into two distinct groups based on bracts short and sheathless vs.
She presented with an acute myocardial infarction and low cardiac output requiring insertion of an IABP (Arrow AutoCAT 2 WAVE with 40cc fibreoptic sensor balloon) via the right femoral artery using a sheathless technique during coronary angiography.