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Nancy M Lee, Cevat Erisken, Thomas Iskratsch, Michael Sheetz, William N Levine, Helen H Lu
Physiologically relevant models of wound healing are essential for understanding the biology of connective tissue repair and healing. They can also be used to identify key cellular processes and matrix characteristics critical for the design of soft tissue grafts. Modeling the various stages of repair post tendon injury, polymer meshes of varying fiber diameter (nano-1 (390 nm) < nano-2 (740 nm) < micro (1420 nm)) were produced. Alignment was also introduced in the nano-2 group to model matrix undergoing biological healing rather than scar formation...
October 12, 2016: Biomaterials
Arash Momeni, Suhail K Kanchwala
BACKGROUND: Autologous breast reconstruction is associated with long-term patient satisfaction that is superior to implant-based approaches. Occasionally, however, patients who desire autologous reconstruction present with inadequate donor-site volume. A hybrid approach, combining free flap reconstruction with simultaneous implant placement, is a solution. We present our experience with the use of mesh for improved pocket control using this reconstructive modality. METHODS: A retrospective analysis of a prospectively maintained database of patients undergoing autologous breast reconstruction was performed...
October 22, 2016: Microsurgery
Zi-Qi Shen, Shan-Yan Gao, Shawn Xiang Li, Tie-Ning Zhang, Cai-Xia Liu, Hai-Chen Lv, Yuan Zhang, Ting-Ting Gong, Xin Xu, Chao Ji, Qi-Jun Wu, Da Li
AIM: To perform a meta-analysis of available cohort studies on the association between sertraline use by pregnant women in the first trimester and the findings of congenital anomalies in infants. METHODS: A comprehensive search of articles published from the index date through December 31, 2015 investigating the aforementioned associations was conducted on PubMed and Web of Science. Mesh headings used included the terms "serotonin reuptake inhibitor," "sertraline," "congenital anomalies" and "obstetrical outcome...
October 22, 2016: British Journal of Clinical Pharmacology
M C M Conde, L A Chisini, R Sarkis-Onofre, H S Schuch, J E Nör, F F Demarco
The aim of this Scoping Study was to evaluate the survival rate and nature of tissue formed inside root canals of human Necrotic Immature Permanent Teeth (NIPT) under root canal revascularization (RCR). The search was performed in SciVerse Scopus(®) , PubMed/Medline, Web of Science(®) , BIREME and in grey literature up to November 2015. The keywords were selected using MeSH terms and DECs. Two independent reviewers scrutinized the records obtained considering specific inclusion criteria. The included studies were evaluated in accordance with a modified Arksey and O' Malley's framework...
October 22, 2016: International Endodontic Journal
U A Dietz, C-T Germer, A Wiegering
There are several techniques for repair of symptomatic inguinal and femoral hernias. There is an increased acceptance and tendency favoring minimally invasive procedures, such as plug or transinguinal preperitoneal mesh prosthesis (TIPP) and endoscopic procedures, such as totally extraperitoneal (TEP) and transabdominal preperitoneal (TAPP) repair. In the present review the classical techniques of Irving L. Lichtenstein (1986) and Jean Rives (1965), two indispensable procedures, are presented and the results from the literature are discussed...
October 21, 2016: Der Chirurg; Zeitschrift Für Alle Gebiete der Operativen Medizen
Zhanzhan Du, Fang Shi, Dong Liu, Hongling Ye, Maheen Mahwish Surhio, Jinglei Li, Ming Ye
A sulfated polysaccharide, designated as SLEP-1, was obtained after sulfation of the exopolysaccharide (LEP-1) which was isolated from Lachnum. The degree of substitution (DS) of sulfate group of SLEP-1 was 1.97. SEM images of SLEP-1 revealed laminated structure in mesh. UV, FT-IR and (13)C NMR spectra indicated that the LEP-1 was sulfated successfully. The result of the anticoagulant activity in vitro showed that both of LEP-1 and SLEP-1 could effectively prolong activated partial thromboplastin time (APTT) and thrombin time (TT) of the normal mice plasma, in which SLEP-1 was more effectively than those of LEP-1, and dose-effect relationships were found...
October 1, 2016: Bioorganic & Medicinal Chemistry Letters
Gijsbert D Musters, Charlotte E L Klaver, Robbert J I Bosker, Jacobus W A Burger, Peter van Duijvendijk, Boudewijn van Etten, Anna A W van Geloven, Eelco J R de Graaf, Christiaan Hoff, Jeroen W A Leijtens, Harm J T Rutten, Baljit Singh, Ronald J C L M Vuylsteke, Johannes H W de Wilt, Marcel G W Dijkgraaf, Willem A Bemelman, Pieter J Tanis
OBJECTIVE: To determine the effect of biological mesh closure on perineal wound healing after extralevator abdominoperineal resection (eAPR). BACKGROUND: Perineal wound complications frequently occur after eAPR with preoperative radiotherapy for rectal cancer. Cohort studies have suggested that biological mesh closure of the pelvic floor improves perineal wound healing. METHODS: Patients were randomly assigned to primary closure (standard arm) or biological mesh closure (intervention arm)...
September 20, 2016: Annals of Surgery
Ruoyu Zhang, Lavinia Mägel, Danny Jonigk, Florian Länger, Torsten Lippmann, Patrick Zardo, Frank Pölzing
PURPOSE: Ideal approaches and materials for reconstruction of large chest wall defects remain a topic of debate. We sought to explore the suitability of a reinforced nanostructured cellulose (NC) patch for chest wall reconstruction in an animal model. MATERIALS AND METHODS: In four domestic pigs, a standardized 10 × 10 cm chest wall defect was created by resecting three rib segments. Subsequently the defect was reconstructed via a biosynthetic NC patch (16 × 12 cm) reinforced by polytetrafluoroethylene mesh...
October 21, 2016: Journal of Investigative Surgery: the Official Journal of the Academy of Surgical Research
Martin de Santibañes, Luis Boccalatte, Eduardo de Santibañes
Recently, associating liver partition and portal vein ligation for staged hepatectomy (ALPPS) emerged as a novel surgical strategy to induce a rapid and large hypertrophy of the future liver remnant (FLR). We conducted a computerized search using PubMed and Google Scholar for reports published between March 2012 and July 2016 using mesh headings and key words relating to the ALPPS surgical procedure. The promising results obtained up to date are difficult to interpret due to the heterogeneous group of patients with different underlying pathologies and different chemotherapy schemes...
October 20, 2016: Updates in Surgery
J Schwarz, W Reinpold, Reinhard Bittner
INTRODUCTION: The "MILOS concept" (mini/less open sublay repair) was developed to realize the benefits of minimally invasive surgery and avoid the disadvantages of traditional open techniques in repair of primary and secondary abdominal wall hernias. Utilizing the MILOS concept, the mesh can be placed in the retromuscular position without opening of the abdominal cavity or without the necessity to perform a large skin incision. The dissection of the retromuscular plane may be done by an open technique (MILOS) or endoscopically (EMILOS)...
October 20, 2016: Langenbeck's Archives of Surgery
Michele Antonio De Riggi, Nicola Rocco, Giulio Gherardini, Emanuela Esposito, Massimiliano D'Aiuto
INTRODUCTION: One-stage implant-based breast reconstruction using titanium-coated polypropylene mesh is a novel approach widely used in Europe. Complication rates in breast reconstruction with the use of titanium-coated meshes seem to be comparable to those in patients with implant-based breast reconstruction alone. However, the use of synthetic meshes in implant-based breast reconstructive surgery leads to new clinical scenarios with the need for the breast surgeon to face new complications...
October 20, 2016: Aesthetic Plastic Surgery
Robert Moore, Christopher Moriarty, Orawee Chinthakanan, John Miklos
INTRODUCTION AND HYPOTHESIS: There has been a trend toward robotic sacrocolpopexy in the United States despite longer operating times and higher costs compared with traditional laparoscopy. The current study objective was to evaluate incision to closure times of laparoscopic sacrocolpopexy in a urogynecologic practice with extensive experience in the laparoscopic approach for pelvic reconstruction. METHODS: We conducted a single-center retrospective evaluation of consecutive patients undergoing laparoscopic sacrocolpopexy for vaginal vault prolapse using a permanent polypropylene Y-mesh over a 1-year period...
October 20, 2016: International Urogynecology Journal
Tsia-Shu Lo, Yi-Hao Lin, Hsiao-Chien Chu, Eileen Feliz M Cortes, Leng Boi Pue, Yiap Loong Tan, Ma Clarissa Uy-Patrimonio
AIM: By investigating the association of urodynamics and urogenital nerve growth factor (NGF) levels in vaginal mesh surgery, we may be able to associate the likelihood of postoperative lower urinary tract symptoms developing as a result of synthetic mesh implanted for pelvic floor reconstructive surgery. METHODS: Thirty-eight female Sprague-Dawley rats were divided into three groups: mesh, sham (no mesh), and control. Urodynamic study and NGF analysis of the urogenital tissues were done and results were compared among all groups...
October 20, 2016: Journal of Obstetrics and Gynaecology Research
Tianxiao Nie, Jianshi Tang, Xufeng Kou, Yin Gen, Shengwei Lee, Xiaodan Zhu, Qinglin He, Li-Te Chang, Koichi Murata, Yabin Fan, Kang L Wang
Voltage control of magnetism in ferromagnetic semiconductor has emerged as an appealing solution to significantly reduce the power dissipation and variability beyond current CMOS technology. However, it has been proven to be very challenging to achieve a candidate with high Curie temperature (Tc), controllable ferromagnetism and easy integration with current Si technology. Here we report the effective electric-field control of both ferromagnetism and magnetoresistance in unique MnxGe1-x nanomeshes fabricated by nanosphere lithography, in which a Tc above 400 K is demonstrated as a result of size/quantum confinement...
October 20, 2016: Nature Communications
Xue-Fei Yang, Jia-Lin Liu
Abdominal incisional hernia is a common complication after open abdominal operations. Laparoscopic procedures have obvious mini-invasive advantages for surgical treatment of abdominal incisional hernia, especially to cases with big hernia defect. Laparoscopic repair of incisional hernia has routine mode but the actual operations will be various according to the condition of every hernia. Key points of these operations include design of the position of trocars, closure of defects and fixation of meshes. The details of these issues and experiences of perioperative evaluation and treatment will be talked about in this article...
September 2016: Annals of Translational Medicine
Dogu Aydin, Ida Felbo Paulsen, Vibeke Egerup Bentzen, Sami Asadzadeh, Lisbet Rosenkrantz Hölmich
We demonstrate that it is possible to use a nonabsorbable mesh for abdominal wall reconstruction after total wound rupture and successfully split-skin graft directly on the mesh. Sufficient granulation tissue formation prior to skin grafting was obtained with long-term use of negative pressure wound therapy (NPWT).
October 2016: Clinical Case Reports
J Tayierjiang, N Waresijiang, H Wang
Objective: To evaluate the clinical results of the patients with severe kyphosis and paraplegia in different spine segment due to tuberculosis of thoracic and lumbar had been treated by one stage posterior surgical procedure to debriment of lesion and titian mesh bone fusion with internal fixation by pedicle screw system. Method: From May 2008 to March 2014, there were total 30 patients with severe kyphosis and paraplegia in different spine segment due to tuberculosis of thoracic and lumbar in Department of Orthopaedics, the People's Hospital of Xinjiang Uygur Autonoumy Region...
October 11, 2016: Zhonghua Yi Xue za Zhi [Chinese medical journal]
Daniel Hachim, Samuel T LoPresti, Cecelia C Yates, Bryan N Brown
The present study tests the hypothesis that transient, early-stage shifts in macrophage polarization at the tissue-implant interface from a pro-inflammatory (M1) to an anti-inflammatory/regulatory (M2) phenotype mitigates the host inflammatory reaction against a non-degradable polypropylene mesh material and improves implant integration downstream. To address this hypothesis, a nanometer-thickness coating capable of releasing IL-4 (an M2 polarizing cytokine) from an implant surface at early stages of the host response has been developed...
October 11, 2016: Biomaterials
Han Wang, Xingyu Gao, Jun Fang
The smooth particle mesh Ewald (SPME) method is the standard method for computing the electrostatic interactions in the molecular simulations. In this work, we develop the multiple staggered mesh Ewald (MSME) method, which averages the SPME forces computed on, e.g. M, staggered meshes. We prove, from a theoretical perspective, that the MSME is as accurate as the SPME, but uses M(2) times less mesh points in a certain parameter range. In the complementary parameter range, the MSME is as accurate as the SPME with twice of the interpolation order...
October 19, 2016: Journal of Chemical Theory and Computation
Mandeep S Tamber, Dimitrios Nikas, Alexandra Beier, Lissa C Baird, David F Bauer, Susan Durham, Paul Klimo, Alexander Y Lin, Catherine Mazzola, Catherine McClung-Smith, Laura Mitchell, Rachana Tyagi, Ann Marie Flannery
BACKGROUND: No evidence-based guidelines exist on the role of cranial-molding orthosis (helmet) therapy for patients with positional plagiocephaly. OBJECTIVE: To address the clinical question: "Does helmet therapy provide effective treatment for positional plagiocephaly?" and to make treatment recommendations based on the available evidence. METHODS: The US National Library of Medicine Medline database and the Cochrane Library were queried by using MeSH headings and key words relevant to the objective of this systematic review...
November 2016: Neurosurgery
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