Great saphenous vein

Great saphenous vein
The great saphenous vein and landmarks along its course from the dorsal venous arch to the saphenous opening and femoral vein
The great saphenous vein and its tributaries at the fossa ovalis in the groin.
Details
SourceDorsal venous arch of the foot, and others
Drains toFemoral vein
Identifiers
Latinvena saphena magna
TA98A12.3.11.003
TA25058
FMA21376
Anatomical terminology

The great saphenous vein (GSV) or long saphenous vein (/səˈfnəs/) is a large, subcutaneous, superficial vein of the leg. It is the longest vein in the body, running along the length of the lower limb, returning blood from the foot, leg and thigh to the deep femoral vein at the femoral triangle.

Structure

The great saphenous vein originates from where the dorsal vein of the big toe (the hallux) merges with the dorsal venous arch of the foot. After passing in front of the medial malleolus (where it often can be visualized and palpated), it runs up the medial side of the leg.[1] At the knee, it runs over the posterior border of the medial epicondyle of the femur bone. In the proximal anterior thigh 3–4 centimetres (1.2–1.6 in) inferolateral to the pubic tubercle, the great saphenous vein dives down deep through the cribriform fascia of the saphenous opening to join the femoral vein. It forms an arch, the saphenous arch, to join the common femoral vein in the region of the femoral triangle at the sapheno-femoral junction.[1]

Tributaries

Superficial veins draining into the great saphenous and femoral vein.

Several veins join the great saphenous vein, but may not all present in every individual. Most of them join it near its junction with the common femoral vein (CFV), at various average distances from this junction:[2]

Vein[2] Presence[2] Joins from direction[2] Joins at average distance from CFV junction[2]
Superficial circumflex iliac vein 83% Lateral 10.8 mm
Superficial epigastric vein 78% Proximal 11.9 mm
Superficial external pudendal vein 90% Medial 16.9 mm
Anterior accessory saphenous vein 51% Lateral 20.5 mm
Posterior accessory saphenous vein 73.9 mm

At the ankle, the great saphenous vein receives branches from the sole of the foot through the medial marginal vein; in the lower leg it anastomoses freely with the small saphenous vein, communicates by perforator veins (Cockett perforators) with the anterior and posterior tibial veins and receives many cutaneous veins; near the knee it communicates with the popliteal vein by the Boyd perforator, in the thigh it communicates with the femoral vein by perforator veins (Dodd perforator) and receives numerous tributaries; those from the medial and posterior parts of the thigh frequently unite to form a large accessory saphenous vein which joins the main vein near the sapheno-femoral junction.[3]

Near the fossa ovalis it is joined by the superficial epigastric, superficial circumflex iliac vein, and superficial external pudendal veins.

The thoracoepigastric vein runs along the lateral aspect of the trunk between the superficial epigastric vein below and the lateral thoracic vein above and establishes an important communication between the femoral vein and the axillary vein.

Clinical significance

Pathology of the great saphenous vein is relatively common, but in isolation typically not life-threatening.[4]

  • Varicose veins: The great saphenous vein, like other superficial veins, can become varicose; swollen, twisted and lengthened, and generally considered to be unsightly. Varicose veins are not life-threatening and various treatment options are available. However, when the diameter of the vein is too large for the valves within it to coapt completely, the resulting condition, chronic venous insufficiency, can result in skin color changes in the calf and ulcers that may persist for years if the vein is not ablated.
  • Thrombophlebitis: The GSV can thrombose. This type of phlebitis of the GSV is usually not life-threatening in isolation; however, if the blood clot is located near the sapheno-femoral junction or near a perforator vein, a clot fragment can migrate to the deep venous system and to the pulmonary circulation. Also it can be associated with, or progress to a deep vein thrombosis which must be treated promptly. So a GSV thrombosis is investigated by ultrasonography to detect if these complications are present.[4]

Use in cardiovascular procedures

The vein is often removed by cardiac surgeons and used for autotransplantation in coronary artery bypass operations, when arterial grafts are not available or many grafts are required, such as in a triple bypass or quadruple bypass.

The great saphenous vein is the conduit of choice for vascular surgeons,[5] when available, for performing peripheral arterial bypass operations. The saphenous vein may undergo vein graft failure after engraftment, but still it has superior long-term patency compared to synthetic grafts (PTFE, PETE (Dacron)), human umbilical vein grafts or biosynthetic grafts [Omniflow]. Often, it is used in situ (in place), after tying off smaller tributaries and destruction of the venous valves with a device called valvulotome, e.g. LeMaitre's valvulotome.

Removal of the saphenous vein will not materially hinder normal circulation in the leg. The blood that previously flowed through the saphenous vein will change its course of travel. This is known as collateral circulation.

The saphenous nerve that runs with the upper part of the great saphenous vein is a branch of the femoral nerve. It can be damaged in surgery on the vein.

Use in emergency medicine

When emergency resuscitation with fluids is necessary, and standard intravenous access cannot be achieved due to venous collapse, saphenous vein cutdown may be utilized.

Etymology

The terms "saphaina" (Greek, meaning "manifest", "to be clearly seen") as well as "safin" (Arabic, "صَافِن" meaning "deep/embedded")[6] have been claimed as the origin for the word "saphenous".[6]

Additional images

See also

References

  1. ^ a b Ricci, Stefano (2017-01-01), Goldman, Mitchel P.; Weiss, Robert A. (eds.), "1 - Anatomy", Sclerotherapy (Sixth Edition), Elsevier, pp. 1–26, doi:10.1016/b978-0-323-37726-3.00001-0, ISBN 978-0-323-37726-3, retrieved 2020-11-19
  2. ^ a b c d e Mühlberger, Dominic; Morandini, Luca; Brenner, Erich (2009). "Venous valves and major superficial tributary veins near the saphenofemoral junction". Journal of Vascular Surgery. 49 (6): 1562–1569. doi:10.1016/j.jvs.2009.02.241. ISSN 0741-5214. PMID 19497520.
  3. ^ Franceschi, C.; Zamboni, P. (2009). Principles of Venous Hemodynamics. Nova biomedical Books. pp. 12–13. ISBN 978-1-60692-485-3.
  4. ^ a b Superficial Thrombophlebitis at eMedicine
  5. ^ Muhs, Bart E.; Gagne, Paul; Sheehan, Peter (2005). "Peripheral arterial disease: Clinical assessment and indications for revascularization in the patient with diabetes". Current Diabetes Reports. 5 (1): 24–9. doi:10.1007/s11892-005-0063-7. PMID 15663913. S2CID 28526956.
  6. ^ a b Caggiati, Alberto; Bergan, John J. (2002). "The saphenous vein: derivation of its name and its relevant anatomy". Journal of Vascular Surgery. 35 (1): 172–5. doi:10.1067/mva.2002.118826. PMID 11802151.

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