Search results for " vein."

Variation of platelet function in clinical phenotypes of acute venous thromboembolism – Results from the GMP‐VTE project

2022

Background The role of platelets in the pathogenesis of venous thromboembolism (VTE) is receiving increasing attention; however, limited information is available on platelet function in the acute phase of the disease. Objective To characterize platelet function according to VTE phenotypes. Patients/Methods In total, 154 subjects (isolated pulmonary embolism [iPE], n = 28; isolated deep vein thrombosis [iDVT], n = 35; DVT+PE, n = 91) were included. In this study platelet function analyzer (PFA)-200, light transmission aggregometry (LTA), thrombin generation (TG) in presence (PRP) and absence (PFP) of platelets and platelet flow cytometry were investigated. LASSO regression was used to select…

Para-aortic lymphadenectomy in abnormal common iliac bifurcation

2021

A 60-year-old-woman was diagnosed with serous endometrial cancer and on pre-operative CT there was evidence of a higher confluence of the common iliac veins in the inferior vena cava ([Figure 1][1]). Due to the presence of ascites (800 mL) and of a neoplastic ileal nodule at laparoscopy, to avoid

Sex-related characteristics of cerebral vein thrombosis: A secondary analysis of a multicenter international cohort study.

2020

The "critical zones" of entrapment of the nerves of the lower limb.

1991

The author has studied, in a group of 40 dissections on cadavers of individuals of different ages, the main “critical zones” of entrapment of some terminal branches of the lumbo-sacral plexus, which include canals (fibrous, osteo-fibrous, fibro-muscular), intervals (intermuscular, fibro-muscular, musculo-ligamentous), rings (fibrous or fibro-muscular) and foramina. They provide the topographical anatomical basis for possible compressive phenomena of the nerves of the lower limb.

Wielokierunkowe i całościowe podejście do leczenia żylnych owrzodzeń goleni

2011

Niniejszy artykuł omawia aspekty leczenia owrzodzeń żylnych goleni. Ze względu na niezwykle złożoną patologię ran przewlekłych, do których jest zaliczane żylne owrzodzenie goleni, tylko wielokierunkowe i całościowe podejście do leczenia może dać pożądany efekt kliniczny. Skuteczny system leczenia owrzodzeń powinien obejmować: opiekę pielęgniarską w miejscu zamieszkania chorego, specjalistyczne leczenie w centrum leczenia ran oraz rozwiązywanie psychospołecznych problemów osoby chorej w klubie pacjentów. Leczenie owrzodzeń żylnych powinno być poprzedzone diagnostyką owrzodzenia, mającą na celu wykluczenie innych przyczyn owrzodzenia niż żylne oraz wykrycie patologii, którą można skorygować c…

Retinal abnormalities in multiple sclerosis patients with associated chronic cerebrospinal venous insufficiency

2012

Optical coherence tomography (OCT) is a non-invasive method for the assessment of optic nerve fibers and retinal ganglion cells. This study was aimed at the assessment of retinal abnormalities in multiple sclerosis patients in the context of chronic cerebrospinal venous insufficiency using OCT of the retina and the optic nerve. We examined 239 multiple sclerosis (MS) patients, including 220 patients with associated chronic cerebrospinal venous insufficiency and 19 MS patients without venous pathology. The following OCT parameters were assessed: average ganglion cell complex thickness, global loss volume, focal loss volume and average retinal nerve fibre layer thickness. Abnormalities in the…

Optical quality of hyperopic and myopic phakic intraocular lenses

2013

Aims: To assess and compare the optical quality of the myopic and hyperopic implantable collamer lens (ICL) from its wavefront aberrations for different powers and pupil diameters. Settings and Design: Prospective study. Material and Methods: The wavefront aberrations of two myopic (−3 and −6 diopters (D)) and two hyperopic V4b ICLs (+3 and +6D) were measured in vitro . To assess and compare the optical quality of different powers of ICLs, we analyzed the root mean square (RMS) of total higher order aberrations (HOAs), trefoil, coma, tetrafoil, secondary astigmatism, and spherical aberration at 3- and 4.5-mm pupil. In addition, the point spread functions (PSFs) of each ICL evaluated were ca…

Supraclavicular approach is an easy and safe method of subclavian vein catheterization even in mechanically ventilated patients: Analysis of 370 atte…

2009

BACKGROUND: Central venous catheters are commonly inserted for hemodynamic monitoring, volume monitoring, administration of medications, long-term total parenteral nutrition, access for renal replacement therapy, cardiopulmonary resuscitation, and difficult peripheral catheterization. The primary outcome of this study was to define venipuncture, catheterization and entire procedure success rates, and finally complication rate of subclavian venous catheterization via the supraclavicular approach with special focus on mechanically ventilated patients. The secondary outcome was to potentially make recommendations regarding this technique of central venous catheterization in mechanically ventil…

Superficial venous thrombosis: role of inherited deficiency of natural anticoagulants in extension to deep veins

2009

AIM: Superficial venous thrombosis (SVT) has been considered for a long time a limited clinical condition of low importance, but this approach has changed in recent years, when several studies demonstrated that extension to deep veins occurs in 7.3 to 44% of patients, with high prevalence of pulmonary embolism. The aim of this study was to evaluate the prevalence of inherited deficiency of natural coagulation inhibitors in patients suffering from SVT in both normal and varicose veins, and to understand their role in extension to deep veins. METHODS: The study included 83 patients with SVT, without clinically obvious risk factors. Ultrasound examination was performed, and deficiencies of Pro…

Key-points to evaluate correctly the placement of umbilical venous catheters in infants on frontal radiographs

2015

Provide basic key-points to evaluate placement of umbilical venous catheters (UVC) using a simplified flow-chart in resident radiologist.