vein system
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Anomalies and Development of Veins to Prof Igor V Zadnypriyani Of CSMU
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vein system
- 2. TO Prof. Igor V. Zadnipryany Aim To learn thedevelopment and Anomalies of vein system system
- 3. DEVELOPMENT OF VEINS Heart-First organ to start functioning & the 1st organ to fully develop in the fetus. A- 21 days -heart tube forms B- 23 days-heart beats C- 4Week cardiac loop forms D- 7 Week heart fully developed Bulbus cordis Ventricle Atrium Sinus venosus
- 4. Truncus arteriosus Consus Ventricle Atrio Ventricular canal Atrium Sinus Venosus Right common Cardinal vein forms superior vena cava Umblical Vein (disappears) Right viteline vein forms part of inferior vena cava Left horn of sinus venosus retrogresses to form part of coronary sinus AtriumBody of Sinus Venosus Right horn Right horn Common cardinal vein Umblical Vein Vitelline Vein
- 5. 1.The vitel line veins (omphalomesenteric veins) 2.The umbilical veins 3.The cardinal veins In The Fifth Week, Three Pairs Of Major Veins Can Be Distinguished
- 7. DEVELOPMENT OF INFERIOR VENACAVA B. Vitel line and umblical vein broken in to numerous channel C. Formation of Hepato cardiac channel D. Formation of Common hepatic vein & Ductus venosus
- 8. ANOMALIES OF THE VENOUS SYSTEM • Anomalies of the Superior Vena Cava • Anomalies of the Coronary Sinus • Anomalies of the Inferior Vena Cava • Anomalies of the Ductus Venosus Click the arrow to continue
- 9. ANOMALIES OF THE SUPERIOR VENA BILATERAL SUPERIOR VENAE CAVA WITH NORMAL DRAINAGE TO THE RIGHT ATRIUM • The size of the Left Superior Vena Cava varies
- 10. LEFT ATRIAL OR BI ATRIAL DRAINAGE OF RIGHT SVC • It results from the deficiency of the common wall between the Superior Vena Cava & Right Upper Pulmonary Vein
- 11. CORONARY SINUS DEFECT & UNROOFED CS • Unroofed coronary sinus almost always is associated with a persistent LSVC • A Cronary sinus defect without an associated LSVC, and the physiology is the same as in ASD ANOMALIES OF THE CORONARY SINUS
- 12. CORONARY SINUS ORIFICE ATRESIA • The Cronary Sinus is usually well formed, the orifice is covered by a thin membrane like tissue
- 13. CORONARY SINUS ANEURYSM OR DIVERTICULUM • It is a pouch with its neck originating in the CronarySinus proximal to the entrance of the middle cardiac vein. The pouch, 2 to 5 cm in diameter, extends into the LV wall.
- 14. INTERRUPTED INFERIOR VENA CAVA • Absence of the hepatic segment of the IVC with azygos continuation into the right or left • Rarely the infra hepatic segment of the IVC may continue to both right and left SVC via bilateral azygos veins ANOMALIES OF THE INFERIOR VENA CAVA
- 15. BILATERAL INFERIOR VENAE CAVAE • Bilateral supra hepatic a frequent finding in cases of visceral heterotaxy with asplenia • Bilateral supra hepatic IVCs also can occur rarely in patients with normal visceral situs
- 16. ANOMALOUS TERMINATION OF THE UMBILICAL VEINS AND ABSENT DUCTUS VENOSUS •Persisted left umbulical vein terminates directly into the CS , to the CS by way of the left portal vein or into the iliac vein ANOMALIES OF THE DUCTUS VENOSUS
- 17. PATIENTS WHO UNDERWENT CARDIAC SURGERY FOR CONGENITAL HEART DISEASES
- 18. THE END……