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https://www.readbyqxmd.com/read/29691335/novel-insights-into-staphylococcus-aureus-deep-bone-infections-the-involvement-of-osteocytes
#1
Dongqing Yang, Asiri R Wijenayaka, Lucian B Solomon, Stephen M Pederson, David M Findlay, Stephen P Kidd, Gerald J Atkins
Periprosthetic joint infection (PJI) is a potentially devastating complication of orthopedic joint replacement surgery. PJI with associated osteomyelitis is particularly problematic and difficult to cure. Whether viable osteocytes, the predominant cell type in mineralized bone tissue, have a role in these infections is not clear, although their involvement might contribute to the difficulty in detecting and clearing PJI. Here, using Staphylococcus aureus , the most common pathogen in PJI, we demonstrate intracellular infection of human-osteocyte-like cells in vitro and S...
April 24, 2018: MBio
https://www.readbyqxmd.com/read/29667825/structure-based-design-of-inhibitors-targeting-prfa-the-master-virulence-regulator-of-listeria-monocytogenes
#2
Martina Kulén, Marie Lindgren, Sabine Hansen, Andrew Gerard Cairns, Christin Grundström, Afshan Begum, Ingeborg van der Lingen, Kristoffer Brännström, Michael Hall, Uwe H Sauer, Jörgen Johansson, A Elisabeth Sauer-Eriksson, Fredrik Almqvist
Listeria monocytogenes is a bacterial pathogen that controls much of its virulence through the transcriptional regulator PrfA. In this study, we describe structure-guided design and synthesis of a set of PrfA inhibitors based on ring-fused 2-pyridone heterocycles. Our most effective compound decreased virulence factor expression, reduced bacterial uptake into eukaryotic cells, and improved survival of chicken embryos infected with L. monocytogenes compared to previously identified compounds. Crystal structures identified an intra-protein "tunnel" as the main inhibitor binding site (AI), where the compounds participate in an extensive hydrophobic network that restricts the protein's ability to form functional DNA-binding helix-turn-helix (HTH) motifs...
April 18, 2018: Journal of Medicinal Chemistry
https://www.readbyqxmd.com/read/29667048/ethanol-lock-is-effective-on-reducing-the-incidence-of-tunneled-catheter-related-bloodstream-infections-in-hemodialysis-patients-a-systematic-review-and-meta-analysis
#3
REVIEW
Tingting Zhao, Hong Liu, Jibin Han
PURPOSE: The purpose of this meta-analysis is to evaluate the effect of ethanol lock on the incidence of catheter-related bloodstream infection (CRBSI) in patients with central venous catheters. METHODS: RCTs comparing ethanol lock with another solution lock for prevention of CRBSI were obtained by searching databases of PubMed, Embase, Web of Science and Cochrane Central Register of clinical trials for eligible randomized controlled trials (inception to December 2017)...
April 17, 2018: International Urology and Nephrology
https://www.readbyqxmd.com/read/29660388/outcomes-of-gracilis-muscle-flaps-in-the-management-of-groin-complications-after-arterial-bypass-with-prosthetic-graft
#4
Anahita Dua, Vy T Ho, Christina Rao, Sapan S Desai
INTRODUCTION: This study details two-year outcomes of a modified gracilis muscle flap (GMF) technique in providing tissue coverage for groin complications after arterial bypass surgery with synthetic graft. METHODS: All patients who developed groin infections after lower extremity arterial bypass with synthetic graft that underwent a GMF were included from June 2014 to March 2017 from a prospectively collected, purpose-built institutional database. Modifications to the standard technique included identification of the muscle using ultrasound to ensure precise skip incisions, preservation of the segmental blood supply, widening of the tunnel through which the muscle is retroflexed, placement of a wound VAC for healing, and lifelong antibiotics...
April 13, 2018: Annals of Vascular Surgery
https://www.readbyqxmd.com/read/29642728/tunnelling-a-midline-catheter-when-the-traffic-light-shifts-from-yellow-to-green
#5
Adam Fabiani, Lorella Dreas, Gianfranco Sanson
INTRODUCTION: A safe, largely used practice for difficult venous access patients is positioning a catheter in deeper veins under ultrasound guide. However, the risk of complications is increased when there is a high catheter-to-vein ratio or when the insertion site is in a zone with particular anatomical/physiological characteristics. CASE DESCRIPTION: A 60-year-old woman admitted to a post-operative intensive care unit after cardiac surgery had a complicated post-operative course...
April 1, 2018: Journal of Vascular Access
https://www.readbyqxmd.com/read/29629896/the-v-y-flap-technique-in-complicated-and-recurrent-pilonidal-sinus-disease
#6
Yavuz Savas Koca, Ihsan Yıldız, Mustafa Ugur, Ibrahim Barut
OBJECT VES: This study presents early and long term (5 years) outcome of 61 complicated pilonidal sinus disease cases undergoing V-Y advancement flap method together with the literature data. METHOD: Data of 336 patients undergoing surgery for pilonidal sinus disease between 2008 and 2012 were retrospectively analyzed. Patients with defect size ≥ 10 cm, and more than one subcutaneous sinus tunnels were assumed to have complicated pilonidal sinus disease. A total of 61 patients were included in the study...
2018: Annali Italiani di Chirurgia
https://www.readbyqxmd.com/read/29615168/reasons-for-removal-of-non-tunneled-double-lumen-catheters-in-incident-dialysis-patients
#7
Ruqaya Qureshi, Beena Salman, Salman Imtiaz, Murtaza F Drohlia, Aasim Ahmad
OBJECTIVE: To evaluate the reasons of removal of non-tunneled double lumen catheters (NTDLC) in incident hemodialysis (HD) patients in a tertiary renal care hospital. STUDY DESIGN: Observational retrospective study. PLACE AND DURATION OF STUDY: Department of Nephrology, The Kidney Centre Postgraduate Training Institute (TKC PGTI), Karachi, from June 2015 to May 2016. METHODOLOGY: All patients were selected who had naive NTDLC placement at TKC PGTI either in Emergency Room (ER) or Intensive Care Unit (ICU) during the study period...
April 2018: Journal of the College of Physicians and Surgeons—Pakistan: JCPSP
https://www.readbyqxmd.com/read/29615088/ultrasound-guided-needle-release-of-the-transverse-carpal-ligament-with-and-without-corticosteroid-injection-for-the-treatment-of-carpal-tunnel-syndrome
#8
Xuan-Yan Guo, Mao-Xiang Xiong, Man Lu, Xue-Qing Cheng, Yan-Yan Wu, Shi-Yin Chen, Kai Chen, Qiao-Dan Zhou, Lei Wang, Li Tan, Jie-Rong Quan, Fan-Ding He, Qin Chen
BACKGROUND: To compare the clinical effectiveness of ultrasound-guided needle release of the transverse carpal ligament (TCL) with and without corticosteroid injection in carpal tunnel syndrome (CTS). METHODS: From June 2016 to June 2017, 49 CTS patients (50 wrists) were included in this study. Twenty-five wrists were treated with ultrasound-guided needle release of the TCL plus corticosteroid injection (group A), and 25 wrists were treated with single ultrasound-guided needle release of the TCL (group B)...
April 3, 2018: Journal of Orthopaedic Surgery and Research
https://www.readbyqxmd.com/read/29611180/antimicrobial-lock-solutions-for-preventing-catheter-related-infections-in-haemodialysis
#9
REVIEW
Maria C Arechabala, Maria I Catoni, Juan Carlos Claro, Noelia P Rojas, Miriam E Rubio, Mario A Calvo, Luz M Letelier
BACKGROUND: Patients undergoing haemodialysis (HD) through a central venous catheter (CVC) are exposed to several risks, being a catheter-related infection (CRI) and a CVC lumen thrombosis among the most serious. Standard of care regarding CVCs includes their sealing with heparin lock solutions to prevent catheter lumen thrombosis. Other lock solutions to prevent CRI, such as antimicrobial lock solutions, have proven useful with antibiotics solutions, but not as yet for non-antibiotic antimicrobial solutions...
April 3, 2018: Cochrane Database of Systematic Reviews
https://www.readbyqxmd.com/read/29610163/recanalization-of-occluded-central-veins-in-a-parenteral-nutrition-dependent-child-with-no-access
#10
Patrick M Sullivan, Russell Merritt, Juan Carlos Pelayo, Frank F Ing
Central venous thromboses are common and pose challenges in the care of chronically ill pediatric patients. Among patients with intestinal failure (most commonly because of short bowel syndrome) who depend on parenteral nutrition, progressive loss of central venous access sites is a potentially fatal complication. We present the case of a 5-year-old girl with parenteral nutrition-dependent short bowel syndrome and no remaining standard central venous access sites despite medical anticoagulation, in whom angioplasty and stent implantations were used to reconstruct chronically occluded central veins...
April 2018: Pediatrics
https://www.readbyqxmd.com/read/29607025/nesting-strategies-and-disease-risk-in-necrophagous-beetles
#11
Verônica Saraiva Fialho, Vinícius Barros Rodrigues, Simon Luke Elliot
While the effects of carcass decomposition on microorganisms have been demonstrated in recent years, little is known of how this impacts necrophagous insects. A common assumption is that insects that exploit carcasses are exposed to a high density of potentially harmful microorganisms, but no field data have so far validated this. Necrophagous beetles such as the Scarabaeinae have complex nesting behaviors with elaborate parental care. So here, we begin to explore whether this conjunction of life history and nesting behavior represents an adaptive response to the threat posed by microbes in these environments, mainly by entomopathogens...
March 2018: Ecology and Evolution
https://www.readbyqxmd.com/read/29602480/-tunnelled-central-venous-catheter-infection-during-treatment-with-epoprostenol
#12
M Koszutski, M Faure, A Guillaumot, E Gomez, M Mercy, F Chabot, A Chaouat
INTRODUCTION: Pulmonary arterial hypertension is a pulmonary vascular disease with a poor prognosis. Continuous intravenous treatment with prostacyclin analogues requires the placement of a tunnelled catheter. The occurrence of catheter-related infections in this context is unusual due to the alkaline pH of the prostacyclin analogue solutions. OBSERVATION: A 50-year-old patient with inherited pulmonary artery hypertension, treated with bosentan, sildenafil and epoprostenol, experienced generalized malaise associated with a weight loss of 9kg over a 12-month period without evidence of a source of infection or malignancy...
March 28, 2018: Revue des Maladies Respiratoires
https://www.readbyqxmd.com/read/29592529/a-novel-technique-of-axillary-vein-puncture-involving-peripherally-inserted-central-venous-catheters-for-a-small-basilic-vein
#13
Fumito Saijo, Yoshinobu Odaka, Mitsuhisa Mutoh, Yu Katayose, Hiromi Tokumura
PURPOSE: Peripherally inserted central venous catheters are some of the most useful devices for vascular access used globally. Peripherally inserted central venous catheters have a low rate of fatal mechanical complications when compared to non-tunnel central venous catheters. However, as peripherally inserted central venous catheter access requires a smaller vein, there is a high risk of thrombosis. The axillary vein (confluence of the basilic and brachial veins) can serve as an access for cannulation...
March 1, 2018: Journal of Vascular Access
https://www.readbyqxmd.com/read/29591533/peritoneal-dialysis-catheter-insertion-surgery-and-management
#14
Kazunari Yoshida, Daisuke Ishii
Peritoneal access surgery is the first step to achieve successful peritoneal dialysis. It is important to perform easy, safe, and less invasive surgery of peritoneal dialysis catheter insertion. Secure peritoneal dialysis catheter insertion will lead to less infection, that is, exit site, tunnel infection, and peritonitis, which sometimes result in peritoneal dialysis discontinuation. To avoid these undesirable results, we should perform good and proper peritoneal dialysis insertion surgery. In this article, we describe peritoneal dialysis catheter insertion surgery and its management...
March 1, 2018: Journal of Vascular Access
https://www.readbyqxmd.com/read/29567048/-central-venous-access-for-cancer-chemotherapy
#15
Eric Desruennes, Frédéric Gomas
The tip of a long term central venous access should be located at the junction of the superior vena cava with the right atrium in order to reduce the incidence of dysfunction and venous thromboses. Picc-lines have their place for treatments of less than 6 months with obvious advantages in terms of discretion and comfort. Long-term sequential chemotherapy is an indisputable indication of an implantable port, while long-term parenteral nutrition is an indication of a tunneled cuffed catheter. In case of mediastinal compression, the risk-benefit ratio favors femoral access...
March 19, 2018: La Presse Médicale
https://www.readbyqxmd.com/read/29563276/non-tuberculous-mycobacterial-infections-related-to-peritoneal-dialysis
#16
Hiroyuki Inoue, Naoki Washida, Kohkichi Morimoto, Keisuke Shinozuka, Takahiro Kasai, Kiyotaka Uchiyama, Hirobumi Tokuyama, Shu Wakino, Hiroshi Itoh
Most infections related to peritoneal dialysis (PD) are caused by common bacteria, and non-tuberculous mycobacteria are rare. The clinical characteristics and prognosis of PD patients with non-tuberculous mycobacterial infections were investigated at our hospital. Non-tuberculous mycobacteria were detected in 11 patients (exit-site infection, tunnel infection, and peritonitis in 3, 5, and 3 patients, respectively). Mycobacterium fortuitum , Mycobacterium chelonae , and Mycobacterium abscessus were identified in 4, 2, and 2 patients, respectively...
March 2018: Peritoneal Dialysis International: Journal of the International Society for Peritoneal Dialysis
https://www.readbyqxmd.com/read/29557679/rates-of-complications-and-secondary-surgeries-of-mini-open-carpal-tunnel-release
#17
Dafang Zhang, Philip Blazar, Brandon E Earp
BACKGROUND: The purpose of this study was to determine the rates and types of complications and secondary surgeries after mini-open carpal tunnel release. METHODS: A retrospective cohort study was performed for 1,328 patients who underwent mini-open carpal tunnel release from August 2008 to July 2013. Patients were excluded for acute trauma, the index procedure being revision surgery, neoplasm, age less than 18 years, incomplete records, and postoperative follow-up less than 1 month, which yielded 904 patients who underwent 1,144 surgeries...
March 1, 2018: Hand: Official Journal of the American Association for Hand Surgery
https://www.readbyqxmd.com/read/29554316/concurrent-placement-of-bilateral-suboccipital-and-supraorbital-nerve-stimulators-using-on-q-tunneler-technical-note
#18
Lara Massie, Rushna Ali, Konstantin V Slavin, Jason M Schwalb
BACKGROUND: Stimulation of the occipital and supraorbital nerves is used to treat chronic migraine refractory to medical management. Placement of cranial leads is often challenging due to the rigid Touhy needle included in the kit for its placement. OBJECTIVE: To report the first case of concurrent placement of bilateral supraorbital (SNS) and occipital nerve stimulators (ONS) from a unilateral approach using the On-Q* Tunneler, (Halyard Health, Alpharetta, Georgia) a flexible, blunt tipped plastic tunneler with a tear-away sheath...
March 14, 2018: Operative Neurosurgery (Hagerstown, Md.)
https://www.readbyqxmd.com/read/29529965/after-peritoneal-dialysis-discontinuation-when-will-we-remove-peritoneal-dialysis-catheter
#19
Hirotake Kasuga
Most of the peritoneal dialysis patients stop their peritoneal dialysis therapy and transfer to hemodialysis or kidney transplantation. In Japan, most end-stage kidney disease patients select hemodialysis after peritoneal dialysis discontinuation. Peritoneal dialysis catheter will be removed after stopping peritoneal dialysis. If peritoneal dialysis patients suffer from refractory peritonitis or severe tunnel infection, we remove the peritoneal dialysis catheter immediately. However, the causes of peritoneal dialysis discontinuation are ultrafiltration failure or peritoneal membrane dysfunction, and we have to consider the timing of peritoneal dialysis catheter removal...
March 1, 2018: Journal of Vascular Access
https://www.readbyqxmd.com/read/29529930/exchange-over-the-guidewire-from-non-tunneled-to-tunneled-hemodialysis-catheters-can-be-performed-without-patency-loss
#20
Hoon Suk Park, Joonsung Choi, Hyung Wook Kim, Jun Hyun Baik, Cheol Whee Park, Young Ok Kim, Chul Woo Yang, Dong Chan Jin
PURPOSE: The exchange from a non-tunneled hemodialysis catheter to a tunneled one over a guidewire using a previous venotomy has been reported to be safe. However, some concerns that it may increase infection risk prevent its clinical application. This approach seems particularly useful for acute kidney injury patients requiring initial renal replacement therapy, in whom we frequently worry about the choice of non-tunneled versus tunneled catheters. MATERIALS AND METHODS: From March 2012 to February 2016, 88 cases to receive the over-the-guidewire exchange method from a non-tunneled to a tunneled catheter and 521 cases to receive de novo tunneled catheter placement from the hemodialysis vascular access cohort were compared retrospectively...
March 1, 2018: Journal of Vascular Access
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