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https://www.readbyqxmd.com/read/28616277/barbed-suture-material-technique-for-wound-closure-and-concomitant-tube-placement-in-uniportal-vats-for-pneumothorax
#1
Kyung Soo Kim
BACKGROUND: Uniportal video-assisted thoracoscopic surgery (VATS) is an alternative modality for treatment of primary spontaneous pneumothorax (PSP) with its less invasiveness and acceptable surgical outcomes. However, a few reports have been introduced for wound management to achieve better cosmetic wound healing and for placement of the chest tube in uniportal VATS. Thus, we aimed to evaluate the feasibility of our novel method for wound closure and concomitant tube placement using continuous barbed suture material in uniportal VATS for PSP...
May 2017: Journal of Thoracic Disease
https://www.readbyqxmd.com/read/28608317/ica-status-of-clinical-staphylococcus-epidermidis-strains-affects-adhesion-and-aggregation-a-thermodynamic-analysis
#2
Titik Nuryastuti, Bastiaan P Krom
Staphylococcus epidermidis is a major nosocomial pathogen associated with infections of indwelling medical devices. One important virulence factor of these organisms is their ability to adhere to devices and form biofilms. In this study, we evaluated the effect of the ica operon on cell surface hydrophobicity, thermodynamics of adhesion, and biofilm formation for seven S. epidermidis strains. The surface free energy parameters of the bacterial cell surface and the substratum were determined by contact angle measurement...
June 12, 2017: Antonie Van Leeuwenhoek
https://www.readbyqxmd.com/read/28590946/hospitalization-among-individuals-waitlisted-for-kidney-transplant
#3
Kira L Newman, Raymond J Lynch, Andrew B Adams, Rebecca Zhang, Stephen O Pastan, Rachel E Patzer
BACKGROUND: For patients waitlisted for a deceased-donor kidney, hospitalization is associated with a lower likelihood of transplantation and worse posttransplant outcomes. However, individual-, neighborhood-, and regional-level risk factors for hospitalization throughout the waitlist period and specific causes of hospitalization in this population are unknown. METHODS: We used United States Renal Data System Medicare-linked data on patients waitlisted between 2005 and 2013 with continuous enrollment in Medicare Parts A & B (n=53 810) to examine the association between annual hospitalization rate and a variety of demographic, clinical, and social factors...
June 6, 2017: Transplantation
https://www.readbyqxmd.com/read/28574141/totally-implantable-venous-access-devices-in-children-with-medical-complexity-preliminary-data-from-a-tertiary-care-hospital
#4
Caterina Geremia, Maria Antonietta De Ioris, Alessandro Crocoli, Ottavio Adorisio, Raffaella Scrocca, Mary Haywood Lombardi, Susanna Staccioli, Pietro Stella, Paola Amendola, Gaetano Ciliento, Francesco De Peppo, Andrea Campana
INTRODUCTION: Children with special health-care needs are an emerging and consistent population. In a subset of children with medical complexity (CMC) a continuous access to the central vascular system is advisable to eliminate unnecessary pain and stress and to improve home management and palliative care. METHODS: The surgical registry of a tertiary hospital was checked in order to identify CMC who underwent totally implantable venous access device (VAD) placement...
May 24, 2017: Journal of Vascular Access
https://www.readbyqxmd.com/read/28570258/novel-method-for-exchange-of-impella-circulatory-assist-catheter-the-trojan-horse-technique
#5
Colin T Phillips, Hector Tamez, Thomas M Tu, Robert W Yeh, Duane S Pinto
Patients with an indwelling Impella may require escalation of hemodynamic support or exchange to another circulatory assistance platform. As such, preservation of vascular access is preferable in cases where anticoagulation cannot be discontinued or to facilitate exchange to an alternative catheter or closure device. Challenges exist in avoiding bleeding and loss of wire access in these situations. We describe a single-access "Trojan Horse" technique that minimizes bleeding while maintaining arterial access for rapid exchange of this percutaneous ventricular assist device...
May 15, 2017: Journal of Invasive Cardiology
https://www.readbyqxmd.com/read/28559294/bypassing-the-restriction-system-to-improve-transformation-of-staphylococcus-epidermidis
#6
Stephen K Costa, Niles P Donegan, Anna-Rita Corvaglia, Patrice François, Ambrose L Cheung
Staphylococcus epidermidis is the leading cause of infections on indwelling medical devices worldwide. Intrinsic antibiotic resistance and vigorous biofilm production have rendered these infections difficult to treat and, in some cases, require the removal of the offending medical prostheses. With the exception of two widely-passaged isolates RP62A and 1457, the pathogenesis of infections caused by clinical S. epidermidis strains is poorly understood due to the strong genetic barrier that precludes efficient transformation of foreign DNA into clinical isolates...
May 30, 2017: Journal of Bacteriology
https://www.readbyqxmd.com/read/28555174/the-atp-dependent-protease-clpp-inhibits-biofilm-formation-by-regulating-agr-and-cell-wall-hydrolase-sle1-in-staphylococcus-aureus
#7
Qian Liu, Xing Wang, Juanxiu Qin, Sen Cheng, Won-Sik Yeo, Lei He, Xiaowei Ma, Xiaoyun Liu, Min Li, Taeok Bae
Biofilm causes hospital-associated infections on indwelling medical devices. In Staphylococcus aureus, Biofilm formation is controlled by intricately coordinated network of regulating systems, of which the ATP-dependent protease ClpP shows an inhibitory effect. Here, we demonstrate that the inhibitory effect of ClpP on biofilm formation is through Agr and the cell wall hydrolase Sle1. Biofilm formed by clpP mutant consists of proteins and extracellular DNA (eDNA). The increase of the protein was, at least in part, due to the reduced protease activity of the mutant, which was caused by the decreased activity of agr...
2017: Frontiers in Cellular and Infection Microbiology
https://www.readbyqxmd.com/read/28553416/understanding-the-mechanism-of-bacterial-biofilms-resistance-to-antimicrobial-agents
#8
REVIEW
Shriti Singh, Santosh Kumar Singh, Indrajit Chowdhury, Rajesh Singh
A biofilm is a group of microorganisms, that causes health problems for the patients with indwelling medical devices via attachment of cells to the surface matrix. It increases the resistance of a microorganism for antimicrobial agents and developed the human infection. Current strategies are removed or prevent the microbial colonies from the medical devices, which are attached to the surfaces. This will improve the clinical outcomes in favor of the patients suffering from serious infectious diseases. Moreover, the identification and inhibition of genes, which have the major role in biofilm formation, could be the effective approach for health care systems...
2017: Open Microbiology Journal
https://www.readbyqxmd.com/read/28507752/effective-treatment-of-benign-biliary-strictures-with-a-removable-fully-covered-self-expandable-metal-stent-a-prospective-multicenter-european-study
#9
Arthur Schmidt, Tilman Pickartz, Markus M Lerch, Fabrizio Fanelli, Fausto Fiocca, Pierleone Lucatelli, Fabrizio Cereatti, Albrecht Hoffmeister, Werner van Steenbergen, Matthias Kraft, Benjamin Meier, Karel Caca
BACKGROUND: Temporary placement of removable, fully covered, self-expandable metal stents (fcSEMS) for treatment of benign biliary strictures (BBS) has been reported to be effective. However, the optimal extraction time point remains unclear and stent migration has been a major concern. OBJECTIVE: The objective of this study was to evaluate the efficacy and safety of this treatment modality using an fcSEMS with a special antimigration design and prolonged stent indwell time...
April 2017: United European Gastroenterology Journal
https://www.readbyqxmd.com/read/28482226/microbially-and-phytofabricated-agnps-with-different-mode-of-bactericidal-action-were-identified-to-have-comparable-potential-for-surface-fabrication-of-central-venous-catheters-to-combat-staphylococcus-aureus-biofilm
#10
Roshmi Thomas, Shiji Mathew, A R Nayana, Jyothis Mathews, E K Radhakrishnan
In spite of newer innovations and process improvements, catheter related infections still pose serious threat to hospitalized patients. Silver nanoparticles (AgNPs) are well demonstrated to have antibacterial properties and also have been implemented for surface fabrication of many indwelling medical devices. So, herein we sought to compare the performance of AgNPs generated through biogenic routes using bacteria and plant extract for their antibacterial and antibiofilm potential against biofilm forming Staphylococcus aureus...
June 2017: Journal of Photochemistry and Photobiology. B, Biology
https://www.readbyqxmd.com/read/28481506/functional-silver-nanocomposites-as-broad-spectrum-antimicrobial-and-biofilm-disrupting-agents
#11
Qianqian Guo, Yu Zhao, Xiaomei Dai, Tianqi Zhang, Yunjian Yu, Xinge Zhang, Chaoxing Li
Biofilms' tolerance has become a serious clinical concern due to their formidable resistance to conventional antibiotics and prevalent virulence. Therefore, there is an urgent need to develop alternative antimicrobial agents to eradicate biofilms but avoid using antibiotics. Herein, we successfully developed polymer functional silver nanocomposites by reduction of silver nitrate in the presence of a biocompatible carbohydrate polymer and a membrane-disrupting cationic polymer. The nanocomposites presented effective antimicrobial activity against Gram-negative bacteria (Pseudomonas aeruginosa, Escherichia coli) and Gram-positive bacteria (Staphylococcus aureus and Bacillus amyloliquefaciens)...
May 15, 2017: ACS Applied Materials & Interfaces
https://www.readbyqxmd.com/read/28476493/promoting-appropriate-urine-culture-management-to-improve-health-care-outcomes-and-the-accuracy-of-catheter-associated-urinary-tract-infections
#12
REVIEW
Robert Garcia, Eric D Spitzer
Published literature indicates that the unjustified ordering or improper collection of urine for urinalysis or culture from either catheterized patients or those without indwelling devices, or misinterpretation of positive results, often leads to adverse health care events, including increased financial burdens, overreporting of mandated catheter-associated urinary tract infection events, overtreatment of patients with antimicrobial agents, selection of multidrug-resistant organisms, and Clostridium difficile infection...
May 2, 2017: American Journal of Infection Control
https://www.readbyqxmd.com/read/28464105/effects-of-dexamethasone-treatment-and-respiratory-vaccination-on-rectal-temperature-complete-blood-count-and-functional-capacities-of-neutrophils-in-beef-steers
#13
H D Hughes, J A Carroll, N C Burdick Sanchez, S L Roberts, P R Broadway, N D May, M A Ballou, J T Richeson
The objective of this research was to examine the effects of dexamethasone (DEX) treatment on various aspects of immunity following administration of a multivalent respiratory vaccine, using a model intended to mimic acute versus chronic stress. Angus × Hereford steers ( = 32; 209 ± 8 kg) were stratified by BW and randomly assigned to 1 of 3 treatments: 1) acute stress (ACU), in which 0.5 mg/kg BW DEX was intravenously administered at 1000 h only on d 0; 2) chronic stress (CHR), in which 0.5 mg/kg BW DEX was intravenously administered at 1000 h on d -3 to 0; or 3) control (CON), in which no DEX was administered...
April 2017: Journal of Animal Science
https://www.readbyqxmd.com/read/28459043/in-vitro-multi-species-biofilms-of-methicillin-resistant-staphylococcus-aureus-and-pseudomonas-aeruginosa-and-their-host-interaction-during-in-vivo-colonization-of-an-otitis-media-rat-model
#14
Mukesh K Yadav, Sung-Won Chae, Yoon Young Go, Gi Jung Im, Jae-Jun Song
Staphylococcus aureus (SA) and Pseudomonas aeruginosa (PA) are known to cause biofilm-related infections. MRSA and PA have been frequently isolated from chronically infected wounds, cystic fibrosis, chronic suppurative otitis media (CSOM), and from indwelling medical devices, and these bacteria co-exist; however, their interaction with each-other or with the host is not well known. In this study, we investigated MRSA and PA multi-species biofilm communities in vitro and their interaction with the host during in vivo colonization using an OM rat-model...
2017: Frontiers in Cellular and Infection Microbiology
https://www.readbyqxmd.com/read/28418081/assessment-of-biofilm-removal-capacity-of-a-broad-host-range-bacteriophage-jhp-against-pseudomonas-aeruginosa
#15
Muafia Shafique, Iqbal Ahmad Alvi, Zaigham Abbas, Shafiq Ur Rehman
Pseudomonas aeruginosa is an efficient biofilm-dwelling microbial pathogen, associated with nosocomial infections. These biofilm-associated infections are resistant to antibiotics and immune defenses, therefore pose major problem against their treatment. This scenario demands alternative therapeutic regimens, and bacteriophage therapy is one among potential strategies for clinical management of multiple drug resistance. In this investigation, the efficacy of a bacteriophage, JHP, is evaluated to eradicate P...
April 18, 2017: APMIS: Acta Pathologica, Microbiologica, et Immunologica Scandinavica
https://www.readbyqxmd.com/read/28414173/affinity-interactions-drive-post-implantation-drug-filling-even-in-the-presence-of-bacterial-biofilm
#16
Erika L Cyphert, Sean T Zuckerman, Horst A von Recum, Julius N Korley
Current post-operative standard of care for surgical procedures, including device implantations, dictates prophylactic antimicrobial therapy, but a percentage of patients still develop infections. Systemic antimicrobial therapy needed to treat such infections can lead to downstream tissue toxicities and generate drug-resistant bacteria. To overcome issues associated with systemic drug administration, a polymer incorporating specific drug affinity has been developed with the potential to be filled or refilled with antimicrobials, post-implantation, even in the presence of bacterial biofilm...
April 13, 2017: Acta Biomaterialia
https://www.readbyqxmd.com/read/28377905/host-response-to-staphylococcus-epidermidis-colonization-and-infections
#17
REVIEW
Thuan H Nguyen, Matthew D Park, Michael Otto
The majority of research in the Staphylococcus field has been dedicated to the understanding of Staphylococcus aureus infections. In contrast, there is limited information on infections by coagulase-negative Staphylococci (CoNS) and how the host responds to them. S. epidermidis, a member of the coagulase-negative Staphylococci, is an important commensal organism of the human skin and mucous membranes; and there is emerging evidence of its benefit for human health in fighting off harmful microorganisms. However, S...
2017: Frontiers in Cellular and Infection Microbiology
https://www.readbyqxmd.com/read/28377583/preventing-microbial-biofilms-on-catheter-tubes-using-ultrasonic-guided-waves
#18
Huanlei Wang, Fengmeng Teng, Xin Yang, Xiasheng Guo, Juan Tu, Chunbing Zhang, Dong Zhang
Biofilms on indwelling tubes and medical prosthetic devices are among the leading causes of antibiotic-resistant bacterial infections. In this work, a new anti-biofilm catheter prototype was proposed. By combining an endotracheal tube (ET) with a group of ultrasonic guided wave (UGW) transducers, the general idea was to prevent bacteria aggregation with UGW vibrations. Based on quantitative analysis of UGW propagation, detailed approach was achieved through (a) selection of ultrasonic frequency, wave modes and vibration amplitude; and (b) adoption of wave coupling and 45° wave incidence technique...
April 4, 2017: Scientific Reports
https://www.readbyqxmd.com/read/28376133/consequences-of-lysine-auxotrophy-for-candida-albicans-adherence-and-biofilm-formation
#19
Iwona Gabriel, Michał Rychłowski
A number of factors are known to be involved in Candida albicans virulence, although biofilm development on the surfaces of indwelling medical devices is considered to promote superficial or systemic disease. Based on previously reported up-regulation of saccharopine and acetyllysine in biofilm cells and activation of the lysine biosynthesis/degradation pathway, we investigated the consequences of Candida albicans lysine auxotrophy on adhesion to host tissues and biofilm formation. Our data indicate that mutant strains lysΔ21/lysΔ22, defective in homocitrate synthase, and lysΔ4, defective in homoaconitase activity (the first two α-aminoadipate pathway enzymes), are able to adhere to mouse embryonic fibroblast cells (cell line NIH/3T3) to the same extent as a control strain SC5314...
2017: Acta Biochimica Polonica
https://www.readbyqxmd.com/read/28373261/how-i-treat-central-venous-access-device-related-upper-extremity-deep-vein-thrombosis
#20
REVIEW
Anita Rajasekhar, Michael B Streiff
Central venous access device (CVAD)-related thrombosis (CRT) is a common complication among patients requiring central venous access as part of their medical care. Complications of CRT include pulmonary embolism, recurrent deep venous thrombosis, loss of central venous access, and postthrombotic syndrome. Patient-, device-, and treatment-related factors can influence the risk of CRT. Despite numerous randomized controlled trials, the clinical benefit of pharmacologic thromboprophylaxis for the prevention of CRT remains to be established...
May 18, 2017: Blood
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