Read by QxMD icon Read

Abdominal wall defect

S van Steensel, A Bloemen, L C L van den Hil, J van den Bos, G J Kleinrensink, N D Bouvy
PURPOSE: The lumbar abdominal wall hernia is a rare hernia in which abdominal contents protrude through a defect in the dorsal abdominal wall, which can be of iatrogenic, congenital, or traumatic origin. Two anatomical locations are known: the superior and the inferior lumbar triangle. The aim of this systematic review is to provide a clear overview of the existing literature and make practical clinical recommendations for proper diagnosis and treatment of the primary lumbar hernia. METHODS: The systematic review was conducted according to the PRISMA guidelines...
October 12, 2018: Hernia: the Journal of Hernias and Abdominal Wall Surgery
Mohamed F Attia, Beau R Brummel, Timothy R Lex, Brooke A Van Horn, Daniel C Whitehead, Frank Alexis
Several synthetic materials exhibiting contrast imaging properties have become vital to the field of biomedical imaging. Polymeric biomaterials and metals are commonly used imaging agents and can assist in the monitoring of therapy response, migration, degradation, changes in morphology, defects, and image-guided surgery. In comparison to metals, most bio and synthetic polymers lack inherent imaging properties. Polymeric biomaterials, specifically polyesters, have gained a considerable amount of attention due to their unique properties including biocompatibility, biodegradation, facile synthesis, and modification capability...
October 8, 2018: Advanced Healthcare Materials
Xin Zhao, Zhuoyue Chen, Yuxiao Liu, Qian Huang, Huidan Zhang, Wu Ji, Jianan Ren, Jieshou Li, Yuanjin Zhao
Therapeutic vascularization appears to be an effective way of repairing abdominal wall defects. Attempts to implement this treatment tend to focus on the generation of featured drug carriers with the ability effectively to encapsulate the angiogenesis-stimulating agents and control their release to maintain an appropriate concentration at the injured area. Here, a new type of composite microparticle (CM) composed of silk fibroin (SF) and hollow mesoporous silica nanocarriers (HMSNs) is presented for therapeutic agent delivery...
October 8, 2018: Advanced Healthcare Materials
Marco Monti, Michele C Schiavi, Vanessa Colagiovanni, Valentina Sciuga, Ottavia D'oria, Gennaro Cerone, Maria Scudo, Marzio A Zullo, Ludovico Muzii, Pierluigi Benedetti Panici
Anterior compartment defect is the most common pelvic organ prolapse. It is defined as the descent of the bladder into the anterior vaginal wall. The etiology is multifactorial and the main risk factors are vaginal delivery and conditions associated with increased abdominal strain. Aging is significantly associated with the prevalence and severity of pelvic organ prolapse. Treatment may be conservative or surgical according to symptoms, prolapse degree and not forgetting both patient and doctor preferences...
October 2, 2018: Minerva Ginecologica
Adriana C Panayi, Dennis P Orgill
Properly designed biodegradable scaffolds facilitate repair or regeneration of stromal tissues. Over the last 50 years, a variety of synthetic, semi-synthetic and decellularized scaffolds have been developed that provide surgeons with tools to reconstruct a wide array of structural defects.We reviewed the literature of biological degradable scaffolds in current clinical use in the US and highlight their design principles as well as products in common use.Host tissues populate scaffolds with inflammatory cells, fibroblasts, blood vessels, nerves and lymphatics...
October 1, 2018: Plastic and Reconstructive Surgery
Wanjun Hu, Zhigang Zhang, Shenglin Lu, Tianzhu Zhang, Naizhen Zhou, Pengfei Ren, Faming Wang, Yang Yang, Zhenling Ji
Abdominal adhesion to polypropylene (PP) mesh remains one of the major complications in hernia repair. Thus, a challenge exists to endow PP mesh with powerful anti-adhesion properties in hernia repair. To investigate potential options, the assembled PP mesh was developed with effective anti-adhesion properties through an in situ coating of the mesh surface with self-fixable and biodegradable mussel-inspired hydrogels. Through mixing oxidized-carboxymethylcellulose functionalized with dopamine (OCMC-DA) with carboxymethylchitosan (CMCS), a layer of hydrogel (OCMC-DA/CMCS) can be formed in situ on the PP mesh without the addition of crosslinking agents; the dopamine then acts as an immobilization group to fix these hydrogels to the PP mesh and the tissue surface...
October 3, 2018: Biomaterials Science
Yoonsun Yoon, Kyungju Kim, Suk Keu Yeom, JeeHyun Lee, Yoon Lee
RATIONALE: The clinical manifestations of VACTERL association include vertebral anomalies, anal atresia, congenital heart diseases, tracheoesophageal fistula, renal dysplasia, and limb abnormalities. The association of intrahepatic anomalies and VACTERL syndrome is a rare coincidence. VACTER syndrome and intrahepatic bile drainage anomalies might be genetically related. PATIENT CONCERNS: A 12-year-old girl presented with episodic colicky abdominal pain, nausea, and vomiting for several years...
September 2018: Medicine (Baltimore)
Cathy A Stevens, Jacob S Hogue, Robert J Hopkin, Rachel C Lombardo, Samantha A Schrier Vergano
Congenital lumbar hernia is a rare anomaly consisting of protrusion of abdominal organs or extraperitoneal tissue through a defect in the lateral abdominal wall. The majority of affected patients have additional anomalies in a pattern described as the lumbocostovertebral syndrome. We report four patients born to mothers with poorly controlled diabetes with congenital lumbar hernia. All patients exhibited features of lumbocostovertebral syndrome with lumbar hernia, multiple vertebral segmentation anomalies in the lower thoracic and/or upper lumbar spine, rib anomalies, and unilateral renal agenesis...
October 1, 2018: American Journal of Medical Genetics. Part A
Wenbin Gong, Tao Cheng, Quanguo Liu, Qianru Xiao, Junsheng Li
It is universal to repair abdominal wall defects with prosthetic materials in abdominal surgery worldwide, which are associated with high complications and organ damage. At present, the composite nanofibers composed of natural and synthetic polymers as the new type of nano structure scaffold have attracted considerable attention in the field of tissue engineering. In this study we examined the feasibility of using electrospun silk fibroin (SF)/poly (3-hydroxybutyrate-co-3-hydroxyvalerate) (PHBV) hybrid scaffolds for repairing of abdominal wall defects...
December 1, 2018: Materials Science & Engineering. C, Materials for Biological Applications
William W Hope, Zachary F Williams, James W Rawles, W Borden Hooks, Thomas V Clancy, Frederic E Eckhauser
We describe a method to measure abdominal wall tension during hernia surgery and evaluate a possible correlation between hernia defect width and abdominal wall tension. After Institutional Review Board approval and informed consent, a prospective trial to measure intraabdominal tension was undertaken (May 2013 through March 2017). Tension measurements were obtained using tensiometers. Total tension, hernia defect width, and surgeon's estimation of tension were recorded. Correlation between defect width and total abdominal wall tension was assessed using multivariate analysis and a multiple linear regression analysis...
September 1, 2018: American Surgeon
Ashley N Leberfinger, Monika Hospodiuk, Abdon Pena-Francesch, Bugra Ayan, Veli Ozbolat, Srinivas V Koduru, Ibrahim T Ozbolat, Melik C Demirel, Dino J Ravnic
Background: Hernia repair is a common surgical procedure with polypropylene (PP) mesh being the standard material for correction because of its durability. However, complications such as seroma and pain are common, and repair failures still approach 15% secondary to poor tissue integration. In an effort to enhance mesh integration, we evaluated the applicability of a squid ring teeth (SRT) protein coating for soft-tissue repair in an abdominal wall defect model. SRT is a biologically derived high-strength protein with strong mechanical properties...
August 2018: Plastic and Reconstructive Surgery. Global Open
Matthew R Bersi, Chiara Bellini, Jay D Humphrey, Stéphane Avril
We recently developed an approach to characterize local nonlinear, anisotropic mechanical properties of murine arteries by combining biaxial extension-distension testing, panoramic digital image correlation, and an inverse method based on the principle of virtual power. This experimental-computational approach was illustrated for the normal murine abdominal aorta assuming uniform wall thickness. Here, however, we extend our prior approach by adding an optical coherence tomography (OCT) imaging system that permits local reconstructions of wall thickness...
September 24, 2018: Biomechanics and Modeling in Mechanobiology
Victor Maciel, Wilmer Mata, Gabriel Arevalo, Marianna Zeichen, Timothy Glass
OBJECTIVE: To present our technique of robotic retrorectus parastomal hernia repair. BACKGROUND: Parastomal hernias represent a significant problem with high recurrence and long-term complications. An estimated of 120,000 new stomas are created per year with a prevalence of up to 800,000 patients in the U.S. 40-60% of these ostomies will never be reversed. Parastomal hernias cause skin breakdown and make adherence of ostomy appliances difficult, creating the need for frequent bag exchanges...
September 24, 2018: Journal of Robotic Surgery
Shun Wu, Ke Guo, Peng Xiao, Jie Yang, Jiaming Sun
BACKGROUND: Conjoined twinning is a rare congenital malformation, and the resultant huge body wall defects after separation of conjoined twins represent a real challenge to surgeons. METHODS: From 2004 to 2009, authors performed body wall reconstruction for 2 pairs of thoraco-omphalopagus twins and 1 pair of ischiopagus tetrapus twins. Before separation, the techniques of tissue expansion and tractive training were adopted to acquire sufficient skin for final coverage...
September 20, 2018: Annals of Plastic Surgery
Katerina Pizzuto, Cory Ozimok, Radenka Bozanovic, Kathleen Tafler, Sarah Scattolon, Nicholas A Leyland, Michelle Morais
Background: Uterine rupture due to a morbidly adherent placenta is a rare obstetrical cause of acute abdominal pain in the pregnant patient. We present a case to add to the small body of published literature describing this diagnosis. Case: A 32-year-old G5T2P1A1L2 with multiple prior cesarean sections presented at 21+3 weeks' gestation with abdominal pain and presyncope. Ultrasound showed a large volume of complex intraabdominal free fluid and a heterogenous placenta with irregular lacunae and increased vascularity extending to the posterior bladder wall...
2018: Case Reports in Obstetrics and Gynecology
Xianqun Cai, Shengxue Hu, Bangrui Yu, Yilei Cai, Jianmin Yang, Feng Li, Yunquan Zheng, Xianai Shi
Peritoneal adhesion is a general complication following pelvic and abdominal surgery, which may lead to chronic abdominal pain, bowel obstruction, organ injury, and female infertility. Biodegradable polymer membranes have been suggested as physical barriers to prevent peritoneum adhesion. In this work, a transglutaminase (TGase)-catalyzed crosslinked carboxymethyl chitosan/carboxymethyl cellulose/collagen (CMCS/CMCL/COL) composite anti-adhesion membrane with various proportions of CMCS, CMCL, and COL (40/40/20, 35/35/30, 25/25/50) was developed...
December 1, 2018: Carbohydrate Polymers
Guillaume Goudot, Clément Papadacci, Blandine Dizier, Véronique Baudrie, Irmine Ferreira, Catherine Boisson-Vidal, Mickaël Tanter, Xavier Jeunemaître, Mathieu Pernot, Emmanuel Messas, Tristan Mirault
OBJECTIVE:  Vascular Ehlers-Danlos syndrome (vEDS) is associated with arterial ruptures due to a mutant gene encoding collagen type III (Col-III). To better understand the role of Col-III, we aimed at evaluating aortic stiffness and dynamic stiffening in vEDS mouse models, with either a quantitative (col3KO mice) or a qualitative Col-III defect (col3KI mice). MATERIALS AND METHODS:  Abdominal aortic wall pulse wave velocities (PWV) in col3KO and col3KI mice were compared to their respective wild type (WT) littermates using a 15 MHz ultrafast ultrasonic transducer...
September 21, 2018: Ultraschall in der Medizin
Masanori Takahashi, Masaru Tamura, Shigeru Sato, Kiyoshi Kawakami
Omphalocele is a human congenital anomaly in ventral body wall closure and may be caused by impaired formation of the primary abdominal wall (PAW) and/or defects in abdominal muscle development. Here, we report that mice doubly deficient in homeobox genes Six4 and Six5 showed ventral body wall closure defects reproducing human omphalocele. SIX4 and SIX5 were localized in surface ectodermal cells and somatic mesoderm-derived mesenchymal and coelomic epithelial cells (CECs) in the PAW. Six4 -/- ; Six5 -/- fetuses exhibited large omphalocele with protrusion of both the liver and intestine or small omphalocele with that of the intestine with complete penetrance...
September 20, 2018: Disease Models & Mechanisms
Derlin Marcio Juárez Muas
BACKGROUND: Diastasis recti is a common pathology during pregnancy and puerperium, usually associated with midline hernias, with aesthetic and symptomatic problems. This approach allows us to restore the alba line, without entering the abdominal cavity. MATERIALS AND METHODS: Between April 2014 and July 2017, 50 patients underwent surgery, 94% female (mean age 38). Ultrasonography confirmed diagnosis. Recti diastasis was associated with midline defects in 100%. The preaponeurotic endoscopic repair is done with suprapubic approach and in both iliac fossae...
September 18, 2018: Surgical Endoscopy
Lucie Hympanova, Marina Gabriela Monteiro Carvalho Mori da Cunha, Rita Rynkevic, Radoslaw A Wach, Alicja K Olejnik, Patricia Y W Dankers, Boris Arts, Tristan Mes, Anton W Bosman, Maarten Albersen, Jan Deprest
PURPOSE: Electrospun meshes mimic the extracellular matrix, which may improve their integration. We aimed to compare polycaprolactone (PCL) modified with ureidopyrimidinone (UPy) electrospun meshes with ultra-lightweight polypropylene (PP; Restorelle) reference textile meshes for in vivo compliance. We chose UPy-PCL because we have shown it does not compromise biomechanical properties of native tissue, and because it potentially can be bioactivated. METHODS: We performed ex vivo biomechanical cyclic loading in wet conditions and in vivo overlay of full-thickness abdominal wall defects in rats and rabbits...
August 21, 2018: Journal of the Mechanical Behavior of Biomedical Materials
Fetch more papers »
Fetching more papers... Fetching...
Read by QxMD. Sign in or create an account to discover new knowledge that matter to you.
Remove bar
Read by QxMD icon Read

Search Tips

Use Boolean operators: AND/OR

diabetic AND foot
diabetes OR diabetic

Exclude a word using the 'minus' sign

Virchow -triad

Use Parentheses

water AND (cup OR glass)

Add an asterisk (*) at end of a word to include word stems

Neuro* will search for Neurology, Neuroscientist, Neurological, and so on

Use quotes to search for an exact phrase

"primary prevention of cancer"
(heart or cardiac or cardio*) AND arrest -"American Heart Association"