2013年5月24日星期五

Vascular suture and selection

Can be used for the type and characteristics of the vascular suture and anastomosis of the common suture
1 silk suture is not absorbed, but prone to degradation, loses tension over time. And later pseudoaneurysm formation, basically not used for vascular anastomosis.
(2) the preparation of the polyester suture such as the polyester thread MERSILENE lines, non-absorbable woven polyester fiber, has good tissue compatibility and tension, but the the polyester the line and MERSILENE line outer layer does not cover , the surface is rough, there will be stretch is felt through the tissue or knotted affect the feel.
Polypropylene suture line such as Prolene suture material is currently the most commonly used revascPolypropylene sutureularization, a single strand of thin wire made from synthetic linear polyolefin can be sustained to maintain its tension, and low coefficient of friction and good operating characteristics.
The suture is 4.Polybutester a new Single thin non-absorbable suture. Polypropylene suture is more sturdy, and to increase the flexibility and memory can be reduced, in the suture traction and to improve the organization through experience using this suture, but still relatively small.
5. The PTFE sutures (PTFE), such as Gore2Tex suture. Has a good feel of operation, no memory, good flexibility, high strength, and biocompatibility, does not cause tissue reaction, with excellent operating characteristics. Further, since the polypropylene suture is used for the PTFE grafts or make films may cause less
Amount of pinhole bleeding the PTFE suture needle and thread ratio of 1:1, thus leaving gaps less around the suture through the graft after the line, and the line body case of blood
HEALTH volume expansion, and therefore relatively less bleeding stitch.
Second, the choice of the the vascular suture the basic principles of (1) under the premise of sufficient strength to ensure that the suture, the possible use of thin lines; (2) To minimize the vascular
Injury, possible use of smaller friction coefficient smooth monofilament or coated suture; (3) In order to minimize the suture through the vessel wall caused by pinholes bleeding, should be used a circular needle suitable radians (usually 1/2 and 3/8 arc), sutures and suture needle fused together; (4) Since the multi-strand braided suture wire and wire gap easier occult sources of infection and should therefore be possible for selected monofilament suture. (5) 220-720 vascular suture can basically meet the great vessels to the outer
Peripheral vascular suture and anastomosis needs. Great vessels 320 and 420 vascular suture is most commonly used. The peripheral vascular vascular suture 520 and 620 most commonly used.
Third, the choice of the the vascular suture types of proposed previously, precision thread prepared with sterile paraffin oil or bone wax lubricated has a good feel for suture with autologous tissue especially the satisfaction of the effect of intravenous tissue, PTFE-coated polyester suture and monofilament polypropylene suture having improved strength and durability and smaller
Tissue reaction and more commonly used for arterial suture. Today, either venous or arterial preferred suture is a polypropylene suture.
In addition, absorbable suture such as polydioxanone suture half-life is long, is now applied in pediatric vascular surgery to accommodate children tissue growth.
Use double-headed suture vascular closure more convenient, fast, and is now widely used. PTFE suture in recent years begun to use a single-stranded, non-absorbable suture, needle ratio of 1:1, the line can occur in case of blood volume expansion, and therefore relatively less bleeding stitch. Has a good feel of operation, no memory, good flexibility, high strength, and biocompatibility, does not cause tissue reaction, mainly used in all kinds of PTFE products. Must be completed vascular suture (consistent), but no suitable the vascular suture spare conditions, nylon thread or silk remains as an option.
Fourth, the choice of the recommendations of the vascular suture size
220,320: the aorta.
420: iliac artery.
520: axillary artery, carotid artery, femoral artery, superficial femoral artery.
520,620: the internal carotid artery, popliteal artery, brachial artery.
720,820: tibial artery or ankle artery.
Note that the PTFE suture to the CV, the maximum size for the CV20, the minimum size of CV28. The CV23 equivalent of 220, CV24 is equivalent to the 320, CV25 phase.
When within 420, CV26 is equivalent to the 520, And so on.

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