guidewires

In PCI guidewires, there are broadly two types:

◆General lesion guidewires
◆CTO lesion guidewires

→General lesion guidewires have lower penetration force, making them safer and less likely to cause perforation even with somewhat rough handling.

→On the other hand, CTO lesion guidewires are designed with higher penetration force compared to general lesion guidewires. They are valuable for penetrating CTO lesions but carry a higher risk of perforation, requiring careful handling.

Three types of general lesion guidewires:

＞First choice wire
→The first and most commonly chosen wire.80% of lesions can be navigated with this wire.
＞Polymer-coated wire
→It is more slippery than the first choice wire.Therefore, caution is needed to avoid perforation in the periphery.
＞Support wire
→A special wire used to extend the vessel or navigate through tortuous paths to deliver devices to the lesion site.

There are broadly two types of guidewires for CTO lesions:

＞Tapered wires
→These are guidewires with needle-sharp, pointed tips, designed to penetrate CTO lesions by piercing through them like a needle. In many CTO cases, tapered wires are frequently used.
＞Heavy tip load wires
→These guidewires are designed with a rigid tip, providing several times the penetration force of general lesion guidewires.

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