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https://www.readbyqxmd.com/read/28818689/sol-gel-derived-hydroxyapatite-films-over-porous-calcium-polyphosphate-substrates-for-improved-tissue-engineering-of-osteochondral-like-constructs
#1
Whitaik David Lee, Rahul Gawri, Robert M Pilliar, William L Stanford, Rita A Kandel
Integration of in vitro-formed cartilage on a suitable substrate to form tissue-engineered implants for osteochondral defect repair is a considerable challenge. In healthy cartilage, a zone of calcified cartilage (ZCC) act as an intermediary for mechanical force transfer from soft to hard tissue, as well as an effective interlocking structure to better resist interfacial shear forces. We have developed biphasic constructs that consist of scaffold-free cartilage tissue grown in vitro on, and interdigitated with, porous calcium polyphosphate (CPP) substrates...
August 14, 2017: Acta Biomaterialia
https://www.readbyqxmd.com/read/28816991/a-case-report-of-tracheal-inflammatory-myofibroblastic-tumor-in-a-34-week-pregnant-woman-misdiagnosed-with-asthma
#2
Xiaochen Li, Juan Li, Xiaoling Rao, Qilin Ao, Xiaopei Cao, Yali Huang, Shengding Zhang, Xiaoyu Fang, Xiansheng Liu, Min Xie
RATIONALE: Inflammatory myofibroblastic tumor (IMT) is an uncommon neoplastic entity with a tendency of local recurrence and a low risk of distant metastasis. Involvement of trachea is extremely rare. PATIENT CONCERNS: A 34-week pregnant woman previously diagnosed with asthma for 2 months was admitted with persistent wheezing and hemoptysis. A computed tomography scan and bronchoscopy revealed a gigantic polyp in the trachea. DIAGNOSES: Tracheal inflammatory myofibroblastic tumor...
August 2017: Medicine (Baltimore)
https://www.readbyqxmd.com/read/28816389/clinical-indications-for-hysteroscopic-removal-of-uterine-masses-time-age-at-diagnosis-and-mass-size
#3
Hyun-Woong Cho, Yu-Jin Koo, Jin-Hwa Hong, Jae-Kwan Lee
AIM: The aim of this study was to investigate clinical factors associated with abnormal pathologies of uterine masses resected via hysteroscopy. METHODS: Women who underwent hysteroscopic surgery for presumptive diagnoses of abnormal endometrial or endocervical masses, such as polyps or leiomyomas on ultrasonography, between January 2012 and April 2015, were enrolled. Clinical and pathologic data were retrospectively reviewed. RESULTS: Among 189 patients, pathologic diagnoses of the uterine mass were abnormal in 172 (91...
August 17, 2017: Journal of Obstetrics and Gynaecology Research
https://www.readbyqxmd.com/read/28816376/acetic-acid-indigo-carmine-mixture-for-evaluating-the-margins-of-sessile-serrated-adenomas-polyps
#4
Shunsuke Yamamoto, Morteza Shafazand
Sessile serrated adenomas/polyps (SSA/Ps) have attracted increasing attention since their risk of developing into cancer was clarified [1]. Difficulty in determining their margins causes incomplete resection [2]. Although narrow-band imaging (NBI) and other advanced imaging systems are reportedly useful in evaluating these polyps [3, 4]. This article is protected by copyright. All rights reserved.
August 17, 2017: Digestive Endoscopy: Official Journal of the Japan Gastroenterological Endoscopy Society
https://www.readbyqxmd.com/read/28816375/adenocarcinoma-of-the-colon-presenting-as-a-submucosal-tumor
#5
Hourin Cho, Shigeki Sekine, Masau Sekiguchi
A 64-year-old woman underwent colonoscopy for abdominal discomfort and a protruded lesion measuring approximately 10 mm was detected in the descending colon. The tumor was entirely covered by normal-appearing mucosa and was regarded as a submucosal tumor (SMT). A small adenomatous polyp was present beside the SMT (Figure 1). For precise histological assessment of the SMT and therapeutic purpose of the coexisted polyp, we performed complete resection of the lesions by endoscopic submucosal dissection. This article is protected by copyright...
August 17, 2017: Digestive Endoscopy: Official Journal of the Japan Gastroenterological Endoscopy Society
https://www.readbyqxmd.com/read/28815611/the-value-of-frontal-sinusotomy-for-chronic-rhinosinusitis-with-nasal-polyps-a-cost-utility-analysis
#6
George A Scangas, Ashton E Lehmann, Aaron K Remenschneider, Brooke M Su, Mark G Shrime, Ralph Metson
OBJECTIVES/HYPOTHESIS: The number of surgical procedures performed for frontal sinusitis and the associated costs have increased dramatically over the past decade. The purpose of this study was to evaluate the cost-effectiveness of endoscopic frontal sinusotomy (EFS) in patients with chronic rhinosinusitis with nasal polyposis (CRSwNP). STUDY DESIGN: Cohort-style Markov decision-tree economic model with a 36-year time horizon. METHODS: Matched cohorts of CRSwNP patients who underwent endoscopic sinus surgery (ESS) with (n = 139) and without (n = 49) EFS were compared to each other and to patients (n = 139) from the Medical Expenditures Survey Panel database who underwent medical management for chronic rhinosinusitis...
August 16, 2017: Laryngoscope
https://www.readbyqxmd.com/read/28815039/predicting-adr-from-pdr-and-individual-adenoma-to-polyp-detection-rate-ratio-for-screening-and-surveillance-colonoscopies-a-new-approach-to-quality-assessment
#7
C Schramm, I Scheller, J Franklin, M Demir, F Kuetting, D Nierhoff, T Goeser, U Toex, H M Steffen
BACKGROUND AND AIMS: Adenoma detection rate (ADR) has been established as a quality indicator for screening colonoscopy. Because ADR is cumbersome to obtain in routine practice, polyp detection rate (PDR), polypectomy rate (PR) and adenoma-to-polyp-detection-rate-ratio (APDRR) have been proposed to estimate ADR. This study aimed to evaluate APDRR in order to estimate ADR (ADRest) in different settings. METHODS: Average risk screening and surveillance colonoscopies from a community-based private practice and a tertiary academic hospital setting were retrospectively evaluated...
August 2017: United European Gastroenterology Journal
https://www.readbyqxmd.com/read/28814902/orbital-apex-cyst-a-rare-cause-of-compressive-optic-neuropathy-post-functional-endoscopic-sinus-surgery
#8
Yi Ni Koh, Shu Fen Ho, Letchumanan Pathma, Harvinder Singh, Embong Zunaina
There are various causes that can lead to compressive optic neuropathy. We present here orbital apex cyst as an unusual cause of compressive optic neuropathy in a 49-year-old male. He presented with 2 weeks painless loss of vision in the left eye with left-sided headache. He had had left functional endoscopic sinus surgery for left nasal polyps 4 years earlier. Magnetic resonance imaging of brain and orbit revealed a left discrete orbital nodule, possibly orbital cyst or mucocele, which was compressing on the left optic nerve...
2017: International Medical Case Reports Journal
https://www.readbyqxmd.com/read/28814353/pre-and-postoperative-blood-neutrophil-to-lymphocyte-and-eosinophil-to-lymphocyte-ratios-in-patients-with-sinonasal-polyps-a-preliminary-investigation
#9
Giuseppe Brescia, Umberto Barion, Claudia Zanotti, Daniela Parrino, Gino Marioni
BACKGROUND: Identifying specific endotypes within the broad picture of chronic rhinosinusitis with nasal polyps (CRSwNP), by using biomarkers for instance, remains a challenge. The prognostic role of the neutrophil-to-lymphocyte ratio (NLR) and the eosinophil-to-lymphocyte ratio (ELR) as potential markers of inflammation has already been discussed. OBJECTIVE: The aim of the present study was to compare NLR and ELR before and after endoscopic sinus surgery (ESS) and nasal mometasone furoate for CRSwNP by stratifying patients by their clinical and histologic features...
September 1, 2017: Allergy and Asthma Proceedings:
https://www.readbyqxmd.com/read/28812188/comparative-efficacy-of-cold-polypectomy-techniques-for-diminutive-colorectal-polyps-a-systematic-review-and-network-meta-analysis
#10
Yoon Suk Jung, Chan Hyuk Park, Eunwoo Nam, Chang Soo Eun, Dong Il Park, Dong Soo Han
BACKGROUND: Although cold polypectomy techniques are preferred over polypectomy with electrocautery in the management of diminutive polyps, comprehensive comparisons among various cold polypectomy techniques have not yet been fully performed. METHODS: We searched for all relevant randomized controlled trials published up until October 2016 examining the efficacy of cold polypectomy techniques for diminutive polyps. Cold polypectomy techniques were classified as cold forceps polypectomy (CFP), jumbo forceps polypectomy (JFP), traditional cold snare polypectomy (CSP), and dedicated CSP, according to the type of device...
August 15, 2017: Surgical Endoscopy
https://www.readbyqxmd.com/read/28812156/accredited-residents-perform-colonoscopy-to-the-same-high-standards-as-consultants
#11
Dedrick Kok Hong Chan, Reuben Kong Min Wong, Khay Guan Yeoh, Ker-Kan Tan
BACKGROUND: Endoscopy remains a critical component of General Surgery and Gastroenterology training. Whilst residents need to gain experience, the quality of endoscopy which patients receive cannot be compromised. We conducted this study to compare quality indicators between consultants and residents with regards to colonoscopy. METHODS: A review of colonoscopies from a prospectively collected database was performed from September 2011 to February 2016. Quality indicators such as caecum intubation rate, adenoma detection rate, adherence to a 6-min withdrawal rule, mean number of polyps detected per colonoscope, and complications were collected and compared between the two groups...
August 15, 2017: Surgical Endoscopy
https://www.readbyqxmd.com/read/28812147/can-polyp-detection-rate-be-used-prospectively-as-a-marker-of-adenoma-detection-rate
#12
Brent Murchie, Kanwarpreet Tandon, Shamiq Zackria, Steven D Wexner, Colin O'Rourke, Fernando J Castro
BACKGROUND: Adenoma detection rate (ADR) is a quality indicator for screening colonoscopy, but its calculation is time-consuming. Polyp detection rate (PDR) has been found to correlate with ADR; however, its use as a quality indicator has been criticized out of concern for endoscopists artificially inflating the PDR. We aim to evaluate whether active monitoring affects PDR. METHODS: In March 2015, 14 endoscopists were made aware that their personal PDRs would be tracked monthly as a quality improvement project...
August 15, 2017: Surgical Endoscopy
https://www.readbyqxmd.com/read/28811715/sex-influenced-association-of-non-alcoholic-fatty-liver-disease-with-colorectal-adenomatous-and-hyperplastic-polyps
#13
Qin-Fen Chen, Xiao-Dong Zhou, Yang-Jie Sun, Dan-Hong Fang, Qian Zhao, Jun-Hua Huang, Yin Jin, Jian-Sheng Wu
AIM: To investigate the relationship between non-alcoholic fatty liver disease (NAFLD) and colorectal adenomatous and hyperplastic polyps. METHODS: A retrospective cross-sectional study was conducted on 3686 individuals undergoing health checkups (2430 males and 1256 females). All subjects underwent laboratory testing, abdominal ultrasonography, colonoscopy, and an interview to ascertain the baseline characteristics and general state of health. Multinomial logistic regression analysis was performed to examine the association between NAFLD and the prevalence of colorectal adenomatous and hyperplastic polyps...
July 28, 2017: World Journal of Gastroenterology: WJG
https://www.readbyqxmd.com/read/28811712/association-between-cyp24a1-polymorphisms-and-the-risk-of-colonic-polyps-and-colon-cancer-in-a-chinese-population
#14
Xue-Qi Chen, Jia-Yu Mao, Wen-Bin Li, Jian Li, Hong Yang, Jia-Ming Qian, Jing-Nan Li
AIM: To determine the pathogenesis and potential single nucleotide polymorphisms (SNPs) as screening sites for colonic polyps, colon cancer and ulcerative colitis, and to analyze the possible association between these genetic polymorphisms and the three diseases. METHODS: We evaluated genetic polymorphisms in 144 newly diagnosed colonic polyp patients, 96 colon cancer patients and 44 ulcerative colitis patients. The four SNPs genotyped were rs4809957, rs6068816, rs6091822 and rs8124792...
July 28, 2017: World Journal of Gastroenterology: WJG
https://www.readbyqxmd.com/read/28807078/the-relationship-between-lung-function-and-the-clinical-and-histopathological-features-in-chinese-patients-with-nasal-polyps
#15
Q L Zhao, L Yu, L L Zhi, P Jin, X X Zi, L Zhao, A Li, Y Y Tu, L Shi, H P Zhang
OBJECTIVE: To investigate lung function in Chinese patients suffering from chronic rhinosinusitis with nasal polyps and examine its association with histopathological features. METHODS: The lung function of 99 patients with nasal polyps was measured. Haematoxylin and eosin and immunohistochemistry staining were performed to evaluate any inflammatory cells and epithelial tissue remodelling. RESULTS: Predicted maximal expiratory flow rate at 25 per cent vital capacity was reduced (p < 0...
August 15, 2017: Journal of Laryngology and Otology
https://www.readbyqxmd.com/read/28806820/didactic-training-vs-computer-based-self-learning-in-the-prediction-of-diminutive-colon-polyp-histology-by-trainees-a-randomized-controlled-study
#16
Taimur Khan, Birtukan Cinnor, Neil Gupta, Lindsay Hosford, Ajay Bansal, Mojtaba S Olyaee, Sachin Wani, Amit Rastogi
Background and study aim Experts can accurately predict diminutive polyp histology, but the ideal method to train nonexperts is not known. The aim of the study was to compare accuracy in diminutive polyp histology characterization using narrow-band imaging (NBI) between participants undergoing classroom didactic training vs. computer-based self-learning. Participants and methods Trainees at two institutions were randomized to classroom didactic training or computer-based self-learning. In didactic training, experienced endoscopists reviewed a presentation on NBI patterns for adenomatous and hyperplastic polyps and 40 NBI videos, along with interactive discussion...
August 14, 2017: Endoscopy
https://www.readbyqxmd.com/read/28805452/birt-hogg-dube-syndrome-with-a-novel-mutation-in-the-flcn-gene
#17
Gulsum Kayhan, Nilgun Yılmaz Demirci, Haluk Turktas, Mehmet Ali Ergun
BACKGROUND: Birt-Hogg-Dube syndrome (BHDS) is an autosomal dominant disease characterized by hair follicle hamartomas, kidney tumors, and spontaneous pneumothorax; its cause is a heterozygous mutation in the FLCN gene. Colorectal polyps and carcinoma have also been reported in BHDS. FLCN mutations can be detected in patients with isolated primary spontaneous pneumothorax (PSP), so PSP may present as part of BHDS. The aim of this report is to enhance awareness that patients presenting with spontaneous PSP should be evaluated for FLCN mutations...
August 14, 2017: Genetic Testing and Molecular Biomarkers
https://www.readbyqxmd.com/read/28804754/use-of-the-full-thickness-resection-device-ftrd-to-prevent-bleeding-after-colonic-polypectomy-in-a-patient-with-a-left-ventricular-assist-device
#18
Richard F Knoop, Hans-Juergen Richer-Schrag, Robert Thimme, Andreas Fischer
Background and study aims  Treatment of colorectal polyps in patients undergoing permanent anticoagulation is associated with a significantly increased risk of peri-interventional bleeding. This specifically applies to polyps > 1 cm where endoscopic full-thickness resection (EFTR) with the full-thickness-resection device (FTRD) can be taken into consideration as an alternative approach to classical snare polypectomy. For these indications, EFTR appears to be superior to conventional techniques especially in terms of sufficient hemostasis due to the mechanical tissue compression achieved by the FTRD's integrated Over-The-Scope Clip (OTSC)...
August 2017: Endoscopy International Open
https://www.readbyqxmd.com/read/28804222/chemical-chaperone-of-endoplasmic-reticulum-stress-inhibits-epithelial-mesenchymal-transition-induced-by-tgf-%C3%AE-1-in-airway-epithelium-via-the-c-src-pathway
#19
Heung-Man Lee, Ju-Hyung Kang, Jae-Min Shin, Seoung-Ae Lee, Il-Ho Park
Epithelial-mesenchymal transition (EMT) is a biological process that allows epithelial cells to assume a mesenchymal cell phenotype. EMT is considered as a therapeutic target for several persistent inflammatory airway diseases related to tissue remodeling. Herein, we investigated the role of endoplasmic reticulum (ER) stress and c-Src in TGF-β1-induced EMT. A549 cells, primary nasal epithelial cells (PNECs), and inferior nasal turbinate organ cultures were exposed to 4-phenylbutylic acid (4PBA) or PP2 and then stimulated with TGF-β1...
2017: Mediators of Inflammation
https://www.readbyqxmd.com/read/28803775/pulmonary-function-in-patients-with-eosinophilic-chronic-rhinosinusitis
#20
Kensuke Uraguchi, Shin Kariya, Seiichiro Makihara, Mitsuhiro Okano, Takenori Haruna, Aiko Oka, Rumi Fujiwara, Yohei Noda, Kazunori Nishizaki
OBJECTIVE: There is a close relationship between upper and lower respiratory tract diseases. Chronic rhinosinusitis patients frequently have lung diseases including asthma and chronic obstructive pulmonary disease. Eosinophilic chronic rhinosinusitis is considered a refractory and intractable subtype of chronic rhinosinusitis. However, there has been no report on pulmonary function in patients with eosinophilic chronic rhinosinusitis. The purpose of this study is to examine the pulmonary function in eosinophilic chronic rhinosinusitis patients and non-eosinophilic chronic rhinosinusitis patients, and evaluate clinical factors associated with the pulmonary function of these patients...
August 10, 2017: Auris, Nasus, Larynx
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