Background Portal vein thrombosis (PVT) is one of the most common causes of extrahepatic portal hypertension in children, which may follow neonatal umbilical vein catheterization. The incidence rates of catheter-related PVT, in infants and children vary in different studies. This study aimed to determine PVT incidence in the children under 3 years old with a history of neonatal umbilical vein c...

We examined 27 resin casts of foetal liver veins and found three types of connection between portal vein and portal sinus. The most frequent connection was endo-lateral (66.7%), when the end of the portal vein joins with the lateral wall of the portal sinus. The next type was latero-lateral (14.8%). In this type, the lateral walls of the portal sinus and the portal vein join together. The last ...

Abernethy malformation (AM) is a rare congenital anomaly in which the splanchnic blood bypasses the liver and drains directly into the systemic veins. It was first described by Abernethy in 1793 and has two types. Type I is characterized by a complete portosystemic shunt and an absence of a portal vein (consists of superior mesenteric and splenic veins), while Type II exhibits partial portosyst...

Chronic vein insufficiency (CVI) is a disease which, when it develops, leads to varicose veins of the lower limbs. As approximately 25% to 50% of people suffer from it, it should be recognised as a public disease. The treatment of chronic vein insufficiency is based on a surgical approach. The aim of the operation is to remove (strip) the insufficient major saphenous vein (MSV), the main cause ...

background portal vein thrombosis (pvt) is one of the most common causes of extrahepatic portal hypertension in children, which may follow neonatal umbilical vein catheterization. the incidence rates of catheter-related pvt, in infants and children vary in different studies. this study aimed to determine pvt incidence in the children under 3 years old with a history of neonatal umbilical vein c...

Ehlers Danlos syndrome (EDS) is an inherited connective tissue disease due to impaired collagen metabolism. Joint hypermobility and skin hyper extensibility are the major findings. Six types of EDS are recognized. Type I or Gravis type is characterized by skin hyperextensibility, joint hypermobility, skin splitting autosoml dominancy inheritance, preterm premature rupture of membrane (PPROM) an...

introduction central vein catheterization (cvc) is an important procedure for emergency departments (ed). despite the existence of ultrasonography (us) devices in every ed, cvc was accomplished by anatomical landmarks in many eds in iran. objective this study was designed for the evaluation of us-guided cvcs, anatomical landmark cvcs, and the promotion of us-guided cvc in iran. methods and mate...