Scholars frequently use ex post evaluation metrics such as the Mean Absolute Percentage Error (MAPE) to estimate forecast accuracy. However, ante are essential know whether a given forecasting model is suitable for variable irrespective of outcome evaluations. The measures help us ensure that accurate, not by chance. current study presents Posterior Variance Test (PVT), which can serve an measu...

Portal vein thrombosis (PVT) is commonly classified into acute (symptom duration <60 days and absence of portal carvernoma and portal hypertension) and chronic types. However, the rationality of this classification has received little attention. In this study, 60 patients (40 men and 20 women) with PVT were examined using contrast-enhanced computed tomography (CT). The percentage of vein occlus...

Background: Cirrhotic patients have higher rates of hypercoagulable disorders. We hypothesized that orthotopic liver transplant (OLT) recipients with pre-operative portal vein thrombosis (PVT) have more postoperative thrombotic events than those without PVT. Aims: To compare rates of post-op thrombotic events and outcomes between those with and without pre-op PVT. Methods: All OLT recipients be...

BACKGROUND Portal vein thrombosis (PVT) is a rare but severe vascular disorder with an acute and a chronic course. Most patients have underlying liver cirrhosis; furthermore, thrombophilia is an important risk factor. However, idiopathic forms are also known. METHODS This review discusses nonsurgical treatment options in PVT. RESULTS AND CONCLUSION Therapy of acute PVT is based on anticoagu...

Background & Aims: Portal vein thrombosis (PVT) and Budd-Chiari syndrome (BCS) are two rare vascular disorders of the liver that can lead to life-threatening complications. We conducted a global survey to systematically analyze the scienti c publications in the elds of PVT and BCS. Methods: All papers regarding PVT and BCS were identi ed via the PubMed, EMBASE, and Cochrane library databases. e...

INTRODUCTION To identify the impact of portal vein thrombosis (PVT) and associated medical and surgical factors on outcomes post liver transplant (LT). MATERIAL AND METHODS Two analyses were performed. Analysis One: cohort study of 505 consecutive patients who underwent LT (Alberta) between 01/2002-12/2012. PVT was identified in 61 (14%) patients. Analysis Two: cohort study of 144 consecutive...

The paraventricular nucleus of the thalamus (PVT) is thought to regulate behavioral responses under emotionally arousing conditions. Reward-associated cues activate PVT neurons; however, the specific PVT efferents regulating reward seeking remain elusive. Using a cued sucrose-seeking task, we manipulated PVT activity under two emotionally distinct conditions: (1) when reward was available durin...

PURPOSE Portal vein thrombosis (PVT) is a rare and life-threatening vascular disorder characterized by obstruction or narrowing of the portal vein. Hyperhomocysteinemia and methylenetetrahydrofolate reductase (MTHFR) C677T polymorphism has been studied in PVT patients with conflicting results. In the present study the association of hyperhomocysteinemia and MTHFR C677T polymorphism with PVT ris...

BACKGROUND Portal vein thrombosis (PVT) used to be a relative contraindication for liver transplantation (LT). This obstacle has been dealt with following the improvement of LT-related techniques. OBJECTIVE To compare the outcome of adult patients with PVT who underwent LT before and after adopting MELD. METHODS We retrospectively searched our database for deceased donor LT recipients who h...

OBJECTIVES The objective of this study was to compare the long-term auditory performance and language skill depending on the age of cochlear implantation in the Korean population. We especially tried to separate the effect of maturation/development from that of the age at implantation. METHODS Eighty-six pre-lingual children with profound hearing loss who underwent a cochlear implantation bef...