scholarly journals Portal system thrombosis in an HIV-infected child

2021 ◽  
Vol 42 (2) ◽  
pp. 175
Author(s):  
Ira Shah ◽  
Pawan Daga
Keyword(s):  
Infected Child ◽  
Portal System

Patterns of Collateral Circulation in the Portal System Following Extrahepatic Inflammatory Processes

1952 ◽  
Vol 21 (3) ◽  
pp. 375-381 ◽  
Author(s):  
Abbott Y. Wilcox ◽  
Edwin G. Bovill ◽  
Renzo G. Olivetti
Keyword(s):  
Collateral Circulation ◽  
Portal System ◽  
Inflammatory Processes

The Effect of E-Portal System on Corporate Image of Universities

2011 ◽  
Vol 7 (4) ◽  
pp. 5-10
Author(s):  
Oyedepo Tunji ◽  
◽  
Okorie Nelson ◽  
Keyword(s):  
Corporate Image ◽  
Portal System

The Vascular Structure of the Kidney of Mallards and Doves

1999 ◽  
Vol 5 (S2) ◽  
pp. 1192-1193
Author(s):  
H. Ditrich
Keyword(s):  
Vascular System ◽  
Venous Drainage ◽  
Portal System ◽  
Physiological Data ◽  
Vascular Structure ◽  
Serial Sections ◽  
Functional Importance ◽  
Additional Material ◽  
Functional Studies ◽  
Primitive Feature

The architecture of the kidney of birds (and also reptiles) is, unlike in mammalians, mainly determined by the organization of the blood vascular system. Besides arterial supply and venous drainage, the renal portal system forms a main structural component. While the latter was often regarded as a “primitive” feature in the literature, morphological and physiological data reveal its great functional importance.Microvascular corrosion casts studied in the scanning electron microscope permit the visualization of minute vessels, retaining their 3D-arrangement. Additionally, when compared with graphical reconstructions of serial sections, this method avoids several inherent artifacts like fixation and dehydration shrinkage as well as the compression of the object by the sectioning blade. Most of the studies on avian kidneys with this technique used the domestic chicken as a model. In order to provide additional material for comparative and functional studies, data on the intrarenal vascular structure of other species are required.

scholarly journals Splenic Artery Embolisation for the Emergency Treatment of Sinistral Portal Hypertension: A Systematic Review

2021 ◽  
Vol 5 (02) ◽  
pp. 079-085
Author(s):  
Harriet Grout-Smith ◽  
Ozbil Dumenci ◽  
N. Paul Tait ◽  
Ali Alsafi
Keyword(s):  
Systematic Review ◽  
Portal Hypertension ◽  
Variceal Bleeding ◽  
Splenic Artery ◽  
Splenic Vein ◽  
Treatment Modalities ◽  
Portal System ◽  
Technical Success Rate ◽  
Randomized Controlled Studies ◽  
Sinistral Portal Hypertension

Abstract Objectives Sinistral portal hypertension (SPH) is caused by increased pressure on the left portal system secondary to splenic vein stenosis or occlusion and may lead to gastric varices. The definitive management of SPH is splenectomy, but this is associated with significant mortality and morbidity in the acute setting. In this systematic review, we investigated the efficacy and safety of splenic artery embolisation (SAE) in managing refractory variceal bleeding in patients with SPH. Methods A comprehensive literature search was conducted using MEDLINE and Embase databases. A qualitative analysis was chosen due to heterogeneity of the studies. Results Our search yielded 339 articles, 278 of which were unique. After initial screening, 16 articles relevant to our search remained for full text review. Of these, 7 were included in the systematic review. All 7 papers were observational, 6 were retrospective. Between them they described 29 SAE procedures to control variceal bleeding. The technical success rate was 100% and there were no cases of rebleeding during follow up. The most common complication was post-embolisation syndrome. Four major complications occurred, two resulting in death. These deaths were the only 30-day mortalities recorded and were in patients with extensive comorbidities. Conclusions Although there is a distinct lack of randomized controlled studies comparing SAE to other treatment modalities, it appears to be safe and effective in treating hemorrhage secondary to SPH.

scholarly journals Correlation between Primary Myelofibrosis and the Association of Portal Thrombosis with Portal-Biliary Cavernoma: US, MDCT and MRI Features

2020 ◽  
Author(s):  
Marco Di Girolamo ◽  
Stefania Galassi ◽  
Salvatore Merola ◽  
Paolo Bonome ◽  
Esmeralda Conte ◽  
...  
Keyword(s):  
Color Doppler ◽  
Primary Myelofibrosis ◽  
Portal System ◽  
Portal Thrombosis ◽  
Mr Cholangiography ◽  
Extrinsic Compression ◽  
Contrast Enhanced Ct ◽  
Mri Features ◽  
Contrast Enhanced ◽  
Increased Risk

Abstract Objective Myelofibrosis is a rare chronic myelolymphoproliferative disease and is associated with increased risk of venous thromboembolism. The objective of this study is to retrospectively evaluate patients with primary myelofibrosis who underwent abdominal US, MDCT and MRI, in order to identify the development of portal thrombosis and its correlation with portal-biliary cavernoma. Methods We evaluated 125 patients with initial diagnosis of primary myelofibrosis and nonspecific abdominal pain who had undergone US with color Doppler. In 13 patients (8 men, 5 females; age: 45–85), US detected portal thrombosis with associated portal-biliary cavernoma. All patients subsequently underwent contrast-enhanced MDCT and MRI and 4 patients MR-cholangiography. The correlation between primary myelofibrosis and portal thrombosis and cavernoma respectively was calculated using χ2 test. Results About 10% of patients with primary myelofibrosis preliminary evaluated with US had partial (8 pts) or complete (5 pts) portal thrombosis associated with portal-biliary cavernoma with a χ2 = 0. In all patients, US detected a concentric thickening of main bile duct (MBD) wall (mean value: 7 mm); color Doppler always showed dilated venous vessels within the thickened wall of the biliary tract. Contrast-enhanced CT and MRI confirmed thickening of MBD walls with their progressive enhancement and allowed better assessment of the extent of the portal system thrombosis. MR-cholangiography showed a thin appearance of the MBD lumen with evidence of ab extrinsic compression. Conclusions The evidence of portal thrombosis and portal-biliary cavernoma in 10% of the patients with primary myelofibrosis indicates a close correlation between the two diseases. In the detection of portal thrombosis and portal-biliary cavernoma, US with color Doppler is the most reliable and economical diagnostic technique while contrast-enhanced MDCT and MRI allow better assessment of the extent of the portal vein thrombosis and of the complications of myelofibrosis.

scholarly journals Occurrence of Zearalenone and Its Metabolites in the Blood of High-Yielding Dairy Cows at Selected Collection Sites in Various Disease States

Toxins ◽  
2021 ◽  
Vol 13 (7) ◽  
pp. 446
Author(s):  
Wojciech Barański ◽  
Magdalena Gajęcka ◽  
Łukasz Zielonka ◽  
Magdalena Mróz ◽  
Ewa Onyszek ◽  
...  
Keyword(s):  
Dairy Cows ◽  
Limit Of Detection ◽  
Correct Diagnosis ◽  
Sampling Site ◽  
Parent Compound ◽  
External Jugular Vein ◽  
Portal System ◽  
Plant Materials ◽  
Blood Samples ◽  
Hepatic Portal

Zearalenone (ZEN) and its metabolites, alpha-zearalenol (α-ZEL) and beta-zearalenol (β-ZEL), are ubiquitous in plant materials used as feed components in dairy cattle diets. The aim of this study was to confirm the occurrence of ZEN and its selected metabolites in blood samples collected from different sites in the hepatic portal system (posthepatic–external jugular vein EJV; prehepatic–abdominal subcutaneous vein ASV and median caudal vein MCV) of dairy cows diagnosed with mastitis, ovarian cysts and pyometra. The presence of mycotoxins in the blood plasma was determined with the use of combined separation methods involving immunoaffinity columns, a liquid chromatography system and a mass spectrometry system. The parent compound was detected in all samples collected from diseased cows, whereas α-ZEL and β-ZEL were not identified in any samples, or their concentrations were below the limit of detection (LOD). Zearalenone levels were highest in cows with pyometra, where the percentage share of average ZEN concentrations reached 44%. Blood sampling sites were arranged in the following ascending order based on ZEN concentrations: EJV (10.53 pg/mL, 44.07% of the samples collected from this site), ASV (14.20 pg/mL, 49.59% of the samples) and MCV (26.67 pg/mL, 67.35% of the samples). The results of the study indicate that blood samples for toxicological analyses should be collected from the MCV (prehepatic vessel) of clinically healthy cows and/or cows with subclinical ZEN mycotoxicosis. This sampling site increases the probability of correct diagnosis of subclinical ZEN mycotoxicosis.

scholarly journals 964 Telemedicine: Speedy Triage Tool or Clinical Record?

2021 ◽  
Vol 108 (Supplement_2) ◽  
Author(s):  
A Ghareib ◽  
Z Vinnicombe ◽  
G Visser ◽  
A Ra ◽  
M Mantella ◽  
...  
Keyword(s):  
Plastic Surgery ◽  
Compliance Rate ◽  
Clinical Record ◽  
Portal System ◽  
Clinical Documentation ◽  
University Hospitals ◽  
Record Keeping ◽  
Clinical Document ◽  
National Guidance

Abstract Introduction St. George’s University Hospitals NHS Foundation Trust is a tertiary plastic surgery centre serving a population of 3.5 million in and around South West London. Telemedicine Referral Image Portal System (TRIPS) is integral to our service, allowing triage of patients in remote locations. During Covid, TRIPS helped in reducing footfall and streamlining out of hospital referrals to reduce unnecessary transfer. The aim of this project was to assess the quality of clinical documentation for emergency referrals to plastic surgery via TRIPS. Method We performed a retrospective review of all patients referred to plastic surgery via TRIPS during April 2020. Documentation standards were determined from national guidance. After introduction of a condensed guide, a second review was performed four months later. Results In April, 131 referrals were recorded on TRIPS. Only 22.9% of records met the standard. The most common omission was treatment advice. Following introduction of guidance, 215 TRIPS records were reviewed. The quality of clinical documentation improved in all aspects with a compliance rate of 89%. Conclusions Although TRIPS remains a useful tool for triage, it is a clinical document and must meet the standards of clinical record keeping. Introduction of clear guidelines improves overall compliance.

CYTOMEGALOVIRUS SINUS DISEASE IN A HUMAN IMMUNODEFICIENCY VIRUS-INFECTED CHILD

1995 ◽  
Vol 14 (7) ◽  
pp. 629-630 ◽  
Author(s):  
Maria Teresa Olivero ◽  
Robert P. Nelson ◽  
Thomas Andrews ◽  
Kenneth Washington ◽  
Robert A. Good
Keyword(s):  
Human Immunodeficiency Virus ◽  
Infected Child ◽  
Sinus Disease ◽  
Immunodeficiency Virus

scholarly journals Increases in Plasma ACTH and Cortisol after Hypertonic Saline Infusion in Patients with Central Diabetes Insipidus

2001 ◽  
Vol 86 (12) ◽  
pp. 5749-5754 ◽  
Author(s):  
Eiji Itagaki ◽  
Sachihiko Ozawa ◽  
Shinya Yamaguchi ◽  
Kenji Ushikawa ◽  
Teruaki Tashiro ◽  
...  
Keyword(s):  
Diabetes Insipidus ◽  
Hypertonic Saline ◽  
Plasma Osmolality ◽  
Central Diabetes Insipidus ◽  
Portal System ◽  
Plasma Acth ◽  
Acth Secretion ◽  
Acth Concentration ◽  
Plasma Arginine ◽  
Hypertonic Saline Infusion

To clarify the mechanism for the potentiation of CRH-induced ACTH response by the infusion of hypertonic saline, we investigated changes in plasma ACTH concentration after infusion of 5% hypertonic saline in five patients with untreated central diabetes insipidus (DI). Basal levels of plasma ACTH and cortisol in the DI group were not significantly different from those in normal control subjects. The infusion of hypertonic saline produced an increase in plasma arginine vasopressin (AVP) in controls, but did not elevate ACTH. However, in patients with DI, the plasma AVP concentration did not change, but circulating ACTH increased 3.6-fold (7.7 ± 1.5 to 23.0 ± 2.7 pmol/liter; P < 0.01), and plasma cortisol also increased significantly (298 ± 99 to 538 ± 124 nmol/liter; P < 0.05). Moreover, a positive correlation was observed between plasma ACTH and osmolality (r = 0.72; P < 0.005). These results indicate that ACTH secretion in DI patients is regulated by a mechanism distinct from that in healthy subjects. It seems possible that the increase in plasma osmolality promotes ACTH secretion in DI patients through AVP and/or urocortin via the hypophyseal portal system, independent of the AVP secretion from magnocellular neurons.

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