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MECHANISMS OF EPIDURAL CATHETER KNOTTING [PDF]

open access: yesВестник анестезиологии и реаниматологии, 2018
The objective of the study: to determine factors and mechanisms of the epidural catheter knotting. Three clinical cases of the epidural catheter knotting have been studied, and 80 bench tests of catheters made of polyamide and polyether block amide have ...
V. A. Gluschenko   +3 more
doaj   +2 more sources

Ileocecal Knotting Causing Intestinal Obstruction on Early Postpartum Period: Case Report

open access: yesInternational Medical Case Reports Journal, 2023
Shimelis Abegaz Daba,1 Aderajew Walle Belete,1 Gelila Dejene Getachew2 1Department of Surgery, St. Paul’s Hospital Millennium Medical College, Addis Ababa, Ethiopia; 2Department of Obstetrics and Gynecology, St. Paul’s Hospital Millennium Medical College,
Shimelis Abegaz Daba
exaly   +2 more sources

Knots and Knot-Hyperpaths in Hypergraphs [PDF]

open access: yesMathematics, 2022
This paper deals with some theoretical aspects of hypergraphs related to hyperpaths and hypertrees. In ordinary graph theory, the intersecting or adjacent edges contain exactly one vertex; however, in the case of hypergraph theory, the adjacent or intersecting hyperedges may contain more than one vertex. This fact leads to the intuitive notion of knots,
Saifur Rahman   +3 more
openaire   +3 more sources

FIBERED KNOTS AND VIRTUAL KNOTS [PDF]

open access: yesJournal of Knot Theory and Its Ramifications, 2013
We introduce a new technique for studying classical knots with the methods of virtual knot theory. Let K be a knot and J be a knot in the complement of K with lk (J, K) = 0. Suppose there is covering space [Formula: see text], where V(J) is a regular neighborhood of J satisfying V(J) ∩ im (K) = ∅ and Σ is a connected compact orientable 2-manifold.
Chrisman M.W., Manturov V.O.
openaire   +4 more sources

Subknots in ideal knots, random knots and knotted proteins [PDF]

open access: yesScientific Reports, 2015
AbstractWe introduce disk matrices which encode the knotting of all subchains in circular knot configurations. The disk matrices allow us to dissect circular knots into their subknots, i.e. knot types formed by subchains of the global knot. The identification of subknots is based on the study of linear chains in which a knot type is associated to the ...
Rawdon, Eric J.   +2 more
openaire   +11 more sources

Spontaneous knotting of an antegrade continent enema catheter

open access: yesJournal of Pediatric Surgery Case Reports, 2021
Malone antegrade continent enema (ACE) is a procedure in which an appendicostomy is performed to effectively control intractable fecal incontinence. In this procedure, spontaneous knotting of the enema catheter inside the cecum may occur, albeit rarely ...
Sun Jung Kim   +4 more
doaj   +1 more source

Ileocecal knotting in a young man: A very rare and unique cause of intestinal obstruction

open access: yesClinical Case Reports, 2020
Ileocecal knitting should be considered as a differential diagnosis of small intestinal obstruction. Aggressive resuscitation and early surgery will be life‐saving.
Hailu Wondimu Gebresellassie
doaj   +1 more source

To Knot or Not to Knot? Sutureless Haemostasis Compared to the Surgeon's Knot [PDF]

open access: yesThe Annals of The Royal College of Surgeons of England, 2007
INTRODUCTION The aim of this study was to carry out an independent evaluation of the efficacy and security of a number of vessel ligation devices and ligatures. MATERIALS AND METHODS A vascular ligation model was devised using fresh, ex vivo porcine internal carotid arteries of varying external diameters.
K, Rajbabu   +3 more
openaire   +2 more sources

Comparison of three sampling procedures for evaluation of intestinal villi: a swine model

open access: yesRevista Colombiana de Ciencias Pecuarias, 2018
Background: Villi morphology and function affect the absorption capacity of the small intestine. Most tissues are fragile and their morphology may change with excessive manipulation and inadequate sampling techniques.
Mateo Itza-Ortiz   +7 more
doaj   +1 more source

Comparison of Hair Knotting with Primary Suture and Stapler Techniques in Scalp Lacerations: A Prospective, Observational Study

open access: yesEurasian Journal of Emergency Medicine, 2023
Aim:We aimed to compare the primary suture and stapler techniques with the hair knotting technique in patients presenting to the emergency department with scalp lacerations and investigate their efficacy in emergency service practice.Materials and ...
Ali Gür   +4 more
doaj   +1 more source

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