Custom-made Doppler ultrasound flow simulator for dialysis access using continuous renal replacement therapy machine.

Custom-made Doppler ultrasound flow simulator for dialysis access using continuous renal replacement therapy machine. J Vasc Access. 2019 May 08;:1129729819845731 Authors: Lee HS, Park P, Han S, Joo N, Song YR, Kim JK, Choi SR, Kim HJ, Kim SG Abstract The purpose of this article was to introduce an easy and inexpensive way of making a simulator for training in Doppler ultrasound flow rate measurement using a continuous renal replacement therapy machine and home-made phantoms. A Doppler ultrasound flow simulator was made using a continuous renal replacement therapy machine and vascular phantoms for flow rate assessment of dialysis access with readily accessible components including rubber tube, keyboard cleaning gel, and freeze-dried instant coffee granules. The simulator is an affordable and easy method of Doppler ultrasound flow rate measurement training for dialysis staff using materials readily available in dialysis centers. PMID: 31064247 [PubMed - as supplied by publisher]
Source: The Journal of Vascular Access - Category: Surgery Tags: J Vasc Access Source Type: research

Related Links:

Arteriovenous fistulas (AVFs) and grafts (AVGs) are associated with an overall patency of 64% to 78% at 1  year and typically require multiple primary and secondary interventions to achieve those results. Improved surveillance, routine ultrasound, medical management, and better care coordination can improve patency but require greater resources and complex process improvements. The purpose of this pape r was to describe an innovative data-driven approach to significantly improve access patency through machine learning.
Source: Journal of Vascular Surgery - Category: Surgery Authors: Tags: Abstract from the 2019 Midwestern Vascular Surgical Society Annual Meeting Source Type: research
CONCLUSION: Cannulation trauma at the initiation of haemodialysis could potentially be reduced with a strategy of incremental haemodialysis using single-needle treatment supported with duplex ultrasonography assessment to 'map' the vascular access as a guide for clinicians prior to cannulation initiation. PMID: 31423945 [PubMed - as supplied by publisher]
Source: The Journal of Vascular Access - Category: Surgery Tags: J Vasc Access Source Type: research
ández M, Ortiz A Abstract Patients with chronic kidney disease (CKD) are at an increased risk of premature mortality, mainly from cardiovascular causes. The association between CKD on hemodialysis and accelerated atherosclerosis was described>40 years ago. However, more recently, it has been suggested that the increase in atherosclerosis risk is actually observed in early CKD stages, remaining stable thereafter. In this regard, interventions targeting the pathogenesis of atherosclerosis, such as statins, successful in the general population, have failed to benefit patients with very advanced CKD. This ra...
Source: Arteriosclerosis, Thrombosis and Vascular Biology - Category: Cardiology Authors: Tags: Arterioscler Thromb Vasc Biol Source Type: research
AbstractBackgroundHypothyroidism with impairment of renal function and raised creatinine phosphokinase (CPK) is described in adults and children with acquired hypothyroidism, but not in congenital hypothyroidism.Case presentationA male infant born at term weighing 3390  g was seen aged 2 months with prolonged jaundice. Examination showed somnolence, umbilical hernia, enlarged fontanelles and lower limb edema; length 55 cm (−1.5 SD), weight 5.4 kg (−0.13 SD). Biochemistry showed fT4 
Source: Journal of Diabetes and Metabolic Disorders - Category: Endocrinology Source Type: research
Authors: Tessitore N, Lipari G, Contro A, Moretti F, Mansueto G, Poli A Abstract INTRODUCTION: Guidelines recommend hemodialysis graft screening to identify and repair significant (>50%) stenosis at high risk of thrombosis, but there is insufficient evidence to prefer one or other screening tool due to the lack of studies comparing all available options. METHODS: Seeking an optimal screening approach, we compared the performance of all currently used tools (duplex ultrasound to detect significant stenosis (StD) and measure access blood flow (QaD), ultrasound dilution access blood flow (QaU), static venous in...
Source: The Journal of Vascular Access - Category: Surgery Tags: J Vasc Access Source Type: research
Introduction: Peripheral, ultrasound-guided intravenous (IV) access occurs frequently in the emergency department, but certain populations present unique challenges for successfully completing this procedure. Prior research has demonstrated decreased compressibility under double tourniquet technique (DT) compared with single tourniquet (ST). We hypothesized that catheters inserted under DT method would have a higher first-stick success rate compared with those inserted under ST method.Methods: We randomized 100 patients with a history of difficult IV access, as defined by past ultrasound IV, prior emergency visit with two ...
Source: Western Journal of Emergency Medicine - Category: Emergency Medicine Source Type: research
Authors: Mateos Torres E, Collado Nieto S, Cao Baduell H, Lacambra Peñart M, Velescu A, Clará Velasco A Abstract INTRODUCTION: Traditionally, the indication of the type of vascular access (VA) has been based on the surgeon's physical examination, but it is now suggested that imaging methods could provide a clinical benefit. Our aim was to determine whether or not preoperative Doppler ultrasound modifies outcomes of the first VA for haemodialysis. PATIENTS AND METHODS: Prospective cohort of patients undergoing a first VA from June 2014 to July 2017 who had a preoperative Doppler ultrasound (ECO gro...
Source: Nefrologia : publicacion oficial de la Sociedad Espanola Nefrologia - Category: Urology & Nephrology Tags: Nefrologia Source Type: research
In this study, a newly-developed PPG sensor device was utilized to provide patients and doctors with an inexpensive and small-sized solution for ubiquitous AVF assessment. The readout in this sensor was custom-designed to increase the signal-to-noise ratio (SNR) and reduce the environment interference via maximizing successfully the full dynamic range of measured PPG entering an analog–digital converter (ADC) and effective filtering techniques. With quality PPG measurements obtained, machine learning classifiers including SVM were adopted to assess AVF quality, where the input features are determined based on opt...
Source: Sensors - Category: Biotechnology Authors: Tags: Article Source Type: research
Rationale: Twin pregnancy in women with chronic kidney disease (CKD) is very rare but poses a great risk to both mother and children. In developing countries like China, advanced CKD twin pregnancies are often terminated. Here, we report a successful case and reviewed related cases, hope to facilitate further study. Patient concerns: A 29-year-old woman with a twin pregnancy showed serum creatinine (Scr) 100 μmol/L (CKD2) at conception. During her 12th week, Scr reached 263 μmol/L (CKD4) with urine protein 3+ and hypertension. Diagnoses: Due to her pregnancy, renal biopsy was not considered. Lab tests sho...
Source: Medicine - Category: Internal Medicine Tags: Research Article: Clinical Case Report Source Type: research
This study is an observational and cross-sectional study including 62 patients with normotensive chronic hemodialysis using no antihypertensive drugs. A series of measurements including ambulatory blood pressure monitoring, left ventricular mass index by echocardiography, common carotid artery intima-media thickness by ultrasound, and body fluids by bioimpedance analysis were conducted for all subjects. Results: The patients were divided into two groups as dippers and nondippers according to their ambulatory blood pressure monitoring results. Average 48 h systolic, diastolic, and mean arterial blood pressure and noctur...
Source: International Journal of Nephrology - Category: Urology & Nephrology Tags: Int J Nephrol Source Type: research
More News: Coffee | Dialysis | Surgery | Training | Ultrasound | Universities & Medical Training