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Catheters malfunction

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https://www.readbyqxmd.com/read/29125413/a-computational-fluid-dynamics-simulation-framework-for-ventricular-catheter-design-optimization
#1
Sofy H Weisenberg, Stephanie C TerMaath, Charlotte N Barbier, Judith C Hill, James A Killeffer
OBJECTIVE Cerebrospinal fluid (CSF) shunts are the primary treatment for patients suffering from hydrocephalus. While proven effective in symptom relief, these shunt systems are plagued by high failure rates and often require repeated revision surgeries to replace malfunctioning components. One of the leading causes of CSF shunt failure is obstruction of the ventricular catheter by aggregations of cells, proteins, blood clots, or fronds of choroid plexus that occlude the catheter's small inlet holes or even the full internal catheter lumen...
November 10, 2017: Journal of Neurosurgery
https://www.readbyqxmd.com/read/29112475/transjugular-venous-approach-for-endovascular-interventions-in-hemodialysis-grafts-and-fistulas-of-the-upper-extremities
#2
Hector Ferral, Marc J Alonzo
OBJECTIVE: This article describes the use of a transjugular venous access for interventions in upper extremity hemodialysis arteriovenous fistulas (AVFs) and grafts. This access is used in selected patients in whom direct puncture of the hemodialysis access is considered to be difficult or cumbersome. Technical success was achieved in 96.7% of patients. If an intervention is unsuccessful, the transjugular access offers the possibility of placement of a dialysis catheter for temporary or long-term hemodialysis...
November 7, 2017: AJR. American Journal of Roentgenology
https://www.readbyqxmd.com/read/29106711/interventions-for-treating-central-venous-haemodialysis-catheter-malfunction
#3
REVIEW
Alice L Kennard, Giles D Walters, Simon H Jiang, Girish S Talaulikar
BACKGROUND: Adequate haemodialysis (HD) in people with end-stage kidney disease (ESKD) is reliant upon establishment of vascular access, which may consist of arteriovenous fistula, arteriovenous graft, or central venous catheters (CVC). Although discouraged due to high rates of infectious and thrombotic complications as well as technical issues that limit their life span, CVC have the significant advantage of being immediately usable and are the only means of vascular access in a significant number of patients...
October 26, 2017: Cochrane Database of Systematic Reviews
https://www.readbyqxmd.com/read/29106676/safety-and-efficacy-of-taurolidine-urokinase-versus-taurolidine-heparin-as-a-tunneled-catheter-lock-solution-in-hemodialysis-patients-a-prospective-randomized-controlled-study
#4
Fadwa Al-Ali, Ahmad F Hamdy, Abdullah Hamad, Mohamed Elsayed, Zafar Zafar Iqbal, Aisha Elsayed, Rania Ibrahim, Hoda Tolba, Hisham Buanan, Ashraf Fawzy
Background: Taurolidine citrate with heparin (Taurolock/Hep) is a promising central venous catheter lock solution. Despite its universal use among our hemodialysis patients, the prevalence of catheter malfunction was high. We aimed to compare Taurolock/Hep and taurolidine citrate with urokinase (Taurolock/U) as a catheter lock solution in order to identify whether either solution could reduce catheter-related dysfunction. Methods: In this prospective, randomized, controlled trial, patients were randomized to receive either Taurolock/Hep or Taurolock/U and were followed for 6 months...
July 4, 2017: Nephrology, Dialysis, Transplantation
https://www.readbyqxmd.com/read/29098486/implantable-loop-recorders-in-the-real-world-a-study-of-two-canadian-centers
#5
Omar A Ibrahim, Doran Drew, Christopher J Hayes, William McIntyre, Colette M Seifer, Wilma Hopman, Benedict Glover, Adrian M Baranchuk
PURPOSE: Implantable loop recorders (ILRs) are increasingly being used for ambulatory electrocardiography. We sought to evaluate ILR indications, diagnostic yield, ILR-guided interventions, and complications in two Canadian centers. METHODS: This was a retrospective study using electronic medical records to identify ILR implants at Queen's University and the University of Manitoba. Information was collected on patient characteristics, medications, indication for implant, results of prior investigations, diagnostic outcome, and subsequent management...
November 2, 2017: Journal of Interventional Cardiac Electrophysiology: An International Journal of Arrhythmias and Pacing
https://www.readbyqxmd.com/read/29097486/practice-of-peritoneal-dialysis-catheter-flushing-in-australia-and-new-zealand-multi-center-cross-sectional-survey
#6
Yeoungjee Cho, Neil C Boudville, Suetonia Palmer, Josephine Chow, Carmel M Hawley, Matthew D Jose, Rob Macginley, Louis Huang, Jo-Anne Moodie, Thu Nguyen, Laura Robison, Jeffrey Wong, David W Johnson
BACKGROUND: Evidence of effective interventions to prevent peritoneal dialysis (PD) catheter malfunction before first use is presently insufficient to guide clinical care. Regular flushing of the PD catheter (e.g. before PD commencement) has been adopted by some practitioners in the belief that it will prevent catheter obstruction and/or malfunction. The aim of this study was to characterize and evaluate PD catheter flushing practices across Australian and New Zealand PD units. METHODS: An on-line survey was distributed to all 62 PD units in Australia (12 August 2016; n = 51) and New Zealand (2 February 2017; n = 11), with questions relating to PD catheter flushing practices, audit, and outcomes...
November 2, 2017: Peritoneal Dialysis International: Journal of the International Society for Peritoneal Dialysis
https://www.readbyqxmd.com/read/29042927/novel-type-of-peritoneocentesis-trocar-assisted-distal-ventriculoperitoneal-shunt-placement-with-supervision-via-a-one-port-laparoscope
#7
Guangming Wang, Jinlu Yu, Yongxin Luan, Yanwu Han, Shuanglin Fu
Ventriculoperitoneal shunts (VPS) are the primary treatment for hydrocephalus and are associated with a high risk of complications, specifically in patients who are obese or have abdominal adhesions or shunt revisions. The present study describes the use of a novel type of peritoneal catheter peritoneocentesis trocar insertion with the assistance of a one-port laparoscope. A total of 36 patients with hydrocephalus underwent this novel type of peritoneocentesis trocar-assisted VPS. The distal shunt catheter was placed into the right subdiaphragmatic space and the catheter was traversed through a single hole drilled through the liver falciform ligament...
October 2017: Experimental and Therapeutic Medicine
https://www.readbyqxmd.com/read/29035775/avoiding-the-pocket-a-case-report-of-coiling-of-distal-shunt-catheter-into-subcutaneous-pocket
#8
Richard Justin Garling, Sandeep Sood, Carolyn Anne Harris
INTRODUCTION: Hydrocephalus is one of the most common disorders of neurosurgery and ventricular shunting, the primary surgical intervention, malfunctions in 85% of patients by 10 years. PRESENTATION OF CASE: Here we present a case of a 12-year-old girl with history of a vagal nerve stimulator (VNS) and ventricular shunt, most recently revised from ventriculoatrial (VA) to ventriculoperitoneal (VP) shunt at an outside hospital. The patient presented with a new left chest bulge, nausea, emesis, and seizures...
October 10, 2017: International Journal of Surgery Case Reports
https://www.readbyqxmd.com/read/29023939/comparing-a-novel-hand-held-device-peritron-to-standard-urodynamics-in-measuring-intravesical-pressure
#9
Vladimir A Ruzhynsky, Stephanie Bitzos, Ing Goping, Sidney B Radomski
AIMS: Peritron+ is a new handheld device, which can be attached to a urethral catheter to measure intravesical pressures (Pves). The goal of this study was to assess if Pves recorded by standard urodynamics (UDs) are comparable to those recorded by the Peritron+. METHODS: Patients with voiding dysfunction and an indication for UD underwent measurement of Pves with nonvideo UD and Peritron+. Pves were recorded at volumes of 50, 100, and 200 mL for the supine and sitting positions...
October 11, 2017: Neurourology and Urodynamics
https://www.readbyqxmd.com/read/28983900/predicting-tissue-plasminogen-activator-use-and-success-in-in-center-hemodialysis-patients
#10
Sarah Daisy Kosa, Chenglin Ye, Lehana Thabane, Amiram Gafni, Charmaine E Lok
INTRODUCTION: Hemodialysis catheter malfunction is problematic. We aimed to determine clinical, catheter, and hemodialysis variables that predict: (i) catheter malfunction requiring recombinant tissue-plasminogen activator (TPA) treatment and (ii) the success of TPA administration. METHODS: Clinical, catheter, and hemodialysis variables were collected from a cohort of 559 catheters (141,526 catheter days) in 175 hemodialysis patients (2008-2011). Time to, and predictors of, catheter malfunction were determined for all catheters and primary catheters only, analyzed by Cox-proportional hazard model, multi-variable logistic regression model, and mixed-effect logistic regression models...
October 4, 2017: Journal of Vascular Access
https://www.readbyqxmd.com/read/28950733/a-rare-case-of-ventriculoperitoneal-shunt-malfunction-due-to-scrotal-migration-of-the-peritoneal-catheter
#11
Mitchell Foster, Graeme Wilson, Michael D Jenkinson, Neil Buxton
The authors describe an unusual cause of ventriculoperitoneal shunt malfunction presenting as acute hydrocephalus.
September 26, 2017: British Journal of Neurosurgery
https://www.readbyqxmd.com/read/28927975/pediatric-arterial-catheters-complications-and-associated-risk-factors
#12
Ferdynand Hebal, Hayley T Sparks, Karen L Rychlik, Meredith Bone, Sifrance Tran, Katherine A Barsness
BACKGROUND/PURPOSE: Arterial catheter complications are a common problem in a pediatric critical care setting, but reported complication rates and risk factors associated with peripheral arterial catheter complications vary. We conducted a retrospective cohort study to identify risk factors in a pediatric patient population. METHODS: We performed a detailed abstraction of provider notes in the electronic medical records of inpatients ≤18years of age who underwent arterial line placement between January 1, 2008 and January 1, 2013 at a university-affiliated standalone pediatric hospital...
September 5, 2017: Journal of Pediatric Surgery
https://www.readbyqxmd.com/read/28893705/safety-and-feasibility-of-temporary-superior-vena-cava-filter-combined-with-balloon-dilatation-and-catheter-directed-thrombolysis-for-catheter-related-thrombosis
#13
Bo Zhang, Ke-Tong Wu, Yong-Jian Guo, Lin Li, Hai-Yang Lai
BACKGROUND: The objective was to evaluate the safety and feasibility of temporary superior vena cava (SVC) filter combined with balloon dilatation and catheter-directed thrombolysis for the treatment of catheter related thrombosis (CRT) caused by implanted ports. METHODS: Between February 2014 and October 2016, thirteen patients with implanted port-related CRT in internal jugular vein, brachiocephalic vein and/or subclavian vein were treated by temporary SVC filter, balloon dilatation and catheter-directed thrombolysis...
September 8, 2017: Annals of Vascular Surgery
https://www.readbyqxmd.com/read/28862725/longitudinal-dialysis-adequacy-and-clinical-performance-of-the-vectorflow-hemodialysis-catheter-a-prospective-study
#14
John R Ross, Tatiana A Puga, Thomas E Philbeck
PURPOSE: To report clinical performance and longitudinal assessment of hemodialysis adequacy with the Arrow-Clark VectorFlow catheter, a symmetrical-tip device with a distal lumen configuration designed to reduce platelet shear stress and catheter thrombosis. METHODS AND MATERIALS: We prospectively enrolled patients who required de novo placement of a chronic tunneled catheter for hemodialysis or exchange of a dysfunctional catheter as part of an Institutional Review Board (IRB)-approved protocol...
August 26, 2017: Journal of Vascular Access
https://www.readbyqxmd.com/read/28857418/an-unusual-case-of-an-irretrievable-hemodialysis-catheter-in-a-patient-with-end-stage-renal-disease
#15
Mehrdad Ghahremani-Ghajar, Anna Jin, Peyman Borghei, Joline L T Chen
Hemodialysis catheters are associated with higher risks of complications compared to arteriovenous fistulas and grafts. Some common complications of dialysis catheters include infection, thrombus formation, central venous stenosis, and mechanical dysfunction. Rarely, catheters can become firmly adhered to a vessel wall. Catheter adhesion is a serious complication that can impact the delivery of safe and effective dialysis to affected patients. Adherent catheters commonly present insidiously with no overt diagnostic signs and symptoms or antecedent catheter malfunction...
August 30, 2017: Hemodialysis International
https://www.readbyqxmd.com/read/28833513/application-of-an-enhanced-device-to-transluminal-retrieval-of-malappositioned-coronary-stents-an-experimental-study
#16
Masayuki Mori, Kenji Sakata, Junichiro Yokawa, Chiaki Nakanishi, Hirofumi Okada, Masaya Shimojima, Shohei Yoshida, Tsuyoshi Yoshimuta, Kenshi Hayashi, Masakazu Yamagishi, Masa-Aki Kawashiri
OBJECTIVES: This study investigated the application of a novel enhanced device to retrieval of deployed stents in a porcine coronary model. BACKGROUND: Recurrence of in-stent restenosis and stent thrombosis still remains to be resolved. Under these conditions, it is sometimes necessary to retrieve malfunctional stents responsible for thrombosis. However, few data exist regarding the feasibility and safety of retrieval device use in previously deployed coronary stents...
August 21, 2017: Journal of Interventional Cardiology
https://www.readbyqxmd.com/read/28806177/laryngeal-mask-airway-embedded-with-pharyngeal-suction-catheters-for-rhinoplasty-a-case-report
#17
Gary X Zhou
A flexible laryngeal mask airway device (LMAD) embedded with 2 pharyngeal suction catheters was used for a young female patient who underwent a revision rhinoplasty, septoplasty, and chin implant. The modified LMAD was constructed by attaching 2 suction catheters onto the back of the mask; it functioned well without signs of malfunction or complications, with a total of 71 mL of blood evacuated from the pharyngeal area during the five and a half hour surgery. The patient emerged from anesthesia without coughing or straining, and reported no sore throat or nausea/vomiting in the recovery room...
August 10, 2017: A & A Case Reports
https://www.readbyqxmd.com/read/28777409/potential-role-of-a-subcutaneously-anchored-securement-device-in-preventing-dislodgment-of-tunneled-cuffed-central-venous-devices-in-pediatric-patients
#18
Andrea Dolcino, Antonio Salsano, Andrea Dato, Nicola Disma, Alessio Pini Prato, Filippo Bernasconi, Luigi Montagnini, Stefano Avanzini, Michela Bevilacqua, Giovanni Montobbio, Girolamo Mattioli, Clelia Zanaboni
INTRODUCTION: The potential drawbacks of tunneled-cuffed catheters are complications such as local or systemic infection, dislodgment, rupture, malfunction, and deep venous thrombosis. Aim of this study is to describe the incidence of complications, focusing on dislodgment and on the role of new securement devices in reducing this annoying issue. METHODS: We enrolled all pediatric patients with tunneled-cuffed central venous catheters (CVCs) inserted at the Giannina Gaslini Institute during a 16-month period...
August 2, 2017: Journal of Vascular Access
https://www.readbyqxmd.com/read/28761618/percutaneous-placement-of-the-peripheral-catheter-to-the-subclavian-vein-for-a-va-shunt
#19
Drosos Evangelos, Giakoumettis Dimitrios, Sfakianos Georgios, Eleftherakis Nikolaos, Papadopoulos Filippos, Themistocleous Marios
Hydrocephalus is a common neurosurgical pathology that affects people of all ages and especially the pediatric population. It can be very often a life threatening condition that pediatric neurosurgeons must deal with. Therefore a number of CSF diversion techniques have been established. The gold standard treatment currently is the placement of a ventriculo-peritoneal shunt. Because of hydrocephalus being a lifelong condition, it is almost in daily practice dealing with cases of shunt failures for a number of reasons...
2017: Pan African Medical Journal
https://www.readbyqxmd.com/read/28741225/conversion-of-external-ventricular-drainage-to-ventriculo-peritoneal-shunt-to-change-or-not-to-change-the-proximal-catheter
#20
Jehuda Soleman, Haggai Benvenisti, Shlomi Constantini, Jonathan Roth
PURPOSE: In this study, we investigate the occurrence rate of early shunt infection and malfunction in pediatric patients after converting an external ventricular drainage (EVD) to a ventriculo-peritoneal shunt (VPS) without replacing the ventricular catheter. METHODS: Data was retrospectively reviewed for 17 pediatric patients (11 male (64.7%), mean age 7.5 years, range 0.25-15 years) who underwent 18 consecutive direct conversions of tunneled EVD to VPS without replacing the ventricular catheter between 2008 and 2017...
November 2017: Child's Nervous System: ChNS: Official Journal of the International Society for Pediatric Neurosurgery
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