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https://www.readbyqxmd.com/read/28885437/cellular-angiofibroma-of-the-nasopharynx
#1
Zülküf Burak Erdur, Haydar Murat Yener, Mehmet Yilmaz, Ayşegül Batioğlu Karaaltin, Hakki Caner Inan, Elvin Alaskarov, Emine Deniz Gozen
Angiofibroma is a common tumor of the nasopharynx region but cellular type is extremely rare in head and neck. A 13-year-old boy presented with frequent epistaxis and nasal obstruction persisting for 6 months. According to the clinical symptoms and imaging studies juvenile angiofibroma was suspected. Following angiographic embolization total excision of the lesion by midfacial degloving approach was performed. Histological examination revealed that the tumor consisted of staghorn blood vessels and irregular fibrous stroma...
September 6, 2017: Journal of Craniofacial Surgery
https://www.readbyqxmd.com/read/28861224/genomic-patterns-in-acropora-cervicornis-show-extensive-population-structure-and-variable-genetic-diversity
#2
Crawford Drury, Stephanie Schopmeyer, Elizabeth Goergen, Erich Bartels, Ken Nedimyer, Meaghan Johnson, Kerry Maxwell, Victor Galvan, Carrie Manfrino, Diego Lirman
Threatened Caribbean coral communities can benefit from high-resolution genetic data used to inform management and conservation action. We use Genotyping by Sequencing (GBS) to investigate genetic patterns in the threatened coral, Acropora cervicornis, across the Florida Reef Tract (FRT) and the western Caribbean. Results show extensive population structure at regional scales and resolve previously unknown structure within the FRT. Different regions also exhibit up to threefold differences in genetic diversity (He), suggesting targeted management based on the goals and resources of each population is needed...
August 2017: Ecology and Evolution
https://www.readbyqxmd.com/read/28845937/-laparoscopic-pyelolithotomy-for-staghorn-kidney-stones-multi-center-study
#3
A D Kochkin, E A Gallyamov, V L Medvedev, R G Biktimirov, A G Martov, F A Sevryukov, A B Novikov, A E Sanzharov, V P Sergeev
AIM: To analyze the effectiveness and safety of laparoscopic pyelolithotomy (LP) in treating staghorn stones. MATERIALS AND METHODS: A multicentre retrospective analysis of the results of LP performed from January 2004 to December 2016 was conducted. INCLUSION CRITERIA: patients with staghorn calculi K3-K4, who underwent LP as an alternative to percutaneous nephrolithotripsy. The analysis included the incidence and structure of intra- and postoperative complications, the causes of access conversion, operating time, duration of postoperative hospital stay and stone clearance...
July 2017: Urologii︠a︡
https://www.readbyqxmd.com/read/28836969/the-application-of-a-novel-integrated-rigid-and-flexible-nephroscope-in-percutaneous-nephrolithotomy-for-renal-staghorn-stones
#4
Huan Yang, Jianxing Li, Gang Long, Shaogang Wang
BACKGROUND: Renal staghorn stones are challenging for urologists to ensure maximum stone clearance and minimal morbidity. Percutaneous nephrolithotomy (PCNL) has become the gold standard treatment for renal staghorn stones. To assess the safety and efficacy of a novel integrated rigid and flexible percutaneous nephroscope(Rigi-flex nephroscope) in PCNL for renal staghorn stones.We present our initial experience with this new technique. METHODS: From March to July 2016, a prospective analysis of 3 patients with staghorn stones treated with Rigi-flex nephroscope in PCNLunder totally ultrasound guidance by paravertebral block (PVB) anesthesia was done...
August 24, 2017: BMC Urology
https://www.readbyqxmd.com/read/28816278/-analysis-of-development-safety-and-efficacy-of-percutaneous-nephrolithotomy-for-management-of-upper-urinary-tract-calculi-in-pediatric-patients
#5
L P Yu, T Xu
OBJECTIVE: To evaluate the development, safety and efficacy of percutaneous nephrolithotomy(PNL) for management of upper urinary tract calculi in pediatric patients. METHODS: In the study, 77 pediatric patients undergoing 87 PNLs through mini or standard tract for upper urinary tract calculi between January 2005 and December 2016 in Peking University People's hospital were reviewed, including 69 renal calculi, 6 upper ureteral calculi, 12 renal and upper ureteral calculi, 35 single calculi, 43 multiple calculi and 9 staghorn calculi...
August 18, 2017: Beijing da Xue Xue Bao. Yi Xue Ban, Journal of Peking University. Health Sciences
https://www.readbyqxmd.com/read/28794587/predictive-factors-for-fever-and-sepsis-following-percutaneous-nephrolithotomy-a-review-of-580-patients
#6
Sumit Suresh Bansal, Prakash Wamanrao Pawar, Ajit S Sawant, Ashwin Sunil Tamhankar, Sunil Raghunath Patil, Gaurav Vinod Kasat
AIMS: There has been much speculation and discussion about the infective complications of percutaneous nephrolithotomy (PCNL). While fever is common after PCNL, the incidence of it progressing to urosepsis is fortunately less. Which patient undergoing PCNL is at risk of developing urosepsis and in whom aggressive treatment of fever postoperatively may prevent the progression to severe sepsis becomes a very important question. This study aims to answer these vital questions. SETTINGS AND DESIGN: This is a single institutional, retrospective study over a period of 3 years...
July 2017: Urology Annals
https://www.readbyqxmd.com/read/28783266/complications-after-prone-pcnl-in-pediatric-adult-and-geriatric-patients-a-single-center-experience-over-7-years
#7
Sumit Kumar, Ramaiah Keshavamurthy, Vilvapathy Senguttuvan Karthikeyan, Ashwin Mallya
INTRODUCTION: CROES-Clavien system (CCS) for grading complications in percutaneous nephrolithotomy (PCNL) is a step towards standardization of outcomes. We categorized complications based on CCS and predicted risk factors across the entire cohort and individually for pediatric (P: ≤18 years), adult (A: 19-65 years) and geriatric (G: ≥65 years) subgroups to assess the risk factors in each subset. We assessed association of complications with length of hospitalization (LOH) and operation time (OT)...
July 2017: International Braz J Urol: Official Journal of the Brazilian Society of Urology
https://www.readbyqxmd.com/read/28782573/percutaneous-nephrolithotomy-in-solitary-kidneys-17-years-of-experience
#8
Hakan Bahadır Haberal, Burak Çitamak, Ali Cansu Bozaci, Mustafa Sertaç Yazici, Fazıl Tuncay Aki, Cenk Yücel Bilen
OBJECTIVE: To compare demographics and results of patients underwent percutaneous nephrolithotomy (PCNL) with solitary and bilateral kidneys. MATERIALS AND METHODS: Between January 1998 and August 2014, 2268 patients underwent PCNL at Hacettepe University Hospital. We retrospectively analyzed the data of 91 patients with a solitary kidney and 2177 patients with bilateral kidneys treated by PCNL. We compared the success and complication rates between solitary and bilateral kidney patients...
August 3, 2017: Urology
https://www.readbyqxmd.com/read/28766960/the-acceptable-criteria-of-stone-burden-and-the-significant-factors-to-choose-retrograde-intrarenal-stone-surgery-or-miniaturized-percutaneous-nephrolithotomy-for-the-treatment-of-renal-stones-10-mm
#9
Juhyun Park, Sohee Oh, Min Chul Cho, Hwancheol Son, Hyeon Jeong, Chang Wook Jeong, Jong Jin Oh, Sung Yong Cho
Objective We investigated the surgical efficiency and cut-off criteria to determine whether retrograde intrarenal surgery (RIRS) or supine miniaturized percutaneous nephrolithotomy (MPCNL) is appropriate for managing renal stones with a mean size > 10 mm. Materials and Methods Data of a single session RIRS or supine MPCNL was collected in a prospective, observational study. Change point analysis with a cumulative sum of ordered value of fragmentation efficiency and stone size was used to detect the point at which the statistical properties of a sequence of observation changes...
August 2, 2017: Journal of Endourology
https://www.readbyqxmd.com/read/28764245/bilateral-staghorn-calculus-with-forgotten-double-j-stent-in-ileal-conduit-patient-a-rare-urological-challenge
#10
Rupesh Gupta, Ranjan Kumar Dey, Rakesh Sharma, Sweta Gupta
Forgotten DJ stent associated stone formation is not an uncommon entity. Here we are reporting the uncommon case of bilateral staghorn calculus due to forgotten DJ stent who had undergone radical cystectomy with ileal conduit diversion six years back. Management of these cases is a challenging urological situation due to inaccessible ureteric orifices. Patient was successfully treated with minimally invasive therapy in the form of combined bilateral PCNL (Percutaneous Nephrolithotomy) and ESWL (Extracorporeal Shock Wave Lithotripsy) therapy...
June 2017: Journal of Clinical and Diagnostic Research: JCDR
https://www.readbyqxmd.com/read/28764017/chemical-composition-and-biological-activity-of-staghorn-sumac-rhus-typhina
#11
REVIEW
Sunan Wang, Fan Zhu
Staghorn sumac (Rhus typhina) is native to North America, and has been used by indigenous peoples for food and non-food applications for a long time. It has been adapted to the other parts of the world for cultivation as a potential source of functional food ingredients. This review summarises the updated information on the chemical composition and diverse biological activities of staghorn sumac. Various factors affect the chemical composition, function retention during processing, and nutritional properties of staghorn sumac-derived products...
December 15, 2017: Food Chemistry
https://www.readbyqxmd.com/read/28751431/a-rare-case-of-persistent-nephropleural-fistula-following-percutaneous-nephrolithotomy
#12
Devanshu Bansal, Brusabhanu Nayak, Prabhjot Singh, Prashant Srivastava
Nephropleural fistula following percutaneous nephrolithotomy (PCNL) is a very rare complication and there are only a few case reports available in the literature. We present a case of a 65-year-old male patient with a right staghorn renal calculus and a left upper ureteric calculus who developed a right nephropleural fistula following right-sided PCNL. The patient required intercostal tube drainage. The cause of the fistula was identified to be a superior calyceal infundibular obstruction due to tiny residual stone fragments and oedema, which was endoscopically dilated, and the fistula subsequently healed...
July 27, 2017: BMJ Case Reports
https://www.readbyqxmd.com/read/28728438/supine-percutaneous-nephrolithotomy-in-the-galdako-modified-valdivia-position-a-high-volume-single-center-experience
#13
David Curry, Rohit Srinivasan, Raj Kucheria, Anuj Goyal, Darrell Allen, Antony Goode, Dominic Yu, Leye Ajayi
OBJECTIVE: To describe the technique and outcomes of supine percutaneous nephrolithotomy (PCNL) in the Galdako-modified Valdivia position. MATERIALS AND METHODS: Prospective data were collected from 303 patients undergoing PCNL in the Galdako-modified Valdivia position at our institution between 2007 and 2015. We report our technique with outcomes of operative times, stone-free rate (SFR), and complications. RESULTS: A total of 202 solitary stones with a mean size of 17...
August 23, 2017: Journal of Endourology
https://www.readbyqxmd.com/read/28710877/quality-attributes-of-bread-fortified-with-staghorn-sumac-extract
#14
Sunan Wang, Fan Zhu
Staghorn sumac (Rhus typhina) is rich in polyphenols and may be used as an innovative ingredient in maintaining and enhancing food quality. In this report, aqueous extracts of sumac fruit powder were added up to 10% in wheat bread formulation. The extract concentration-dependently delayed the mold growth (up to 5 log reduction in 7-day storage) and the staling of bread. Adding sumac extracts dose-dependently increased the total phenolic and anthocyanin contents of the breads. Minimal changes were observed in loaf volume, water activity, moisture content, texture (cohesiveness, springiness, and adhesive), and aroma of breads containing extracts of less than 4%...
July 15, 2017: Journal of Texture Studies
https://www.readbyqxmd.com/read/28702679/predictive-factors-of-bleeding-among-pediatric-patients-undergoing-percutaneous-nephrolithotomy
#15
Cagri Senocak, Ridvan Ozbek, Omer Faruk Bozkurt, Ali Unsal
The purpose of this study is to determine the perioperative risk factors for increased blood loss in children undergoing percutaneous nephrolithotomy (PCNL).We retrospectively reviewed the data on pediatric patients who had undergone PCNL for stone disease in our department. Blood loss estimation was quantified by measuring the changes in hematocrit plus the volume of red blood cells transfused. Univariate and multivariate linear regression analyses were performed to evaluate risk factors associated with increased blood loss after pediatric PCNL...
July 12, 2017: Urolithiasis
https://www.readbyqxmd.com/read/28702412/megakaryocytic-morphology-in-janus-kinase-2-v617f-positive-myeloproliferative-neoplasm
#16
Shuchi Ghai, Sharada Rai
CONTEXT: Alterations in megakaryocyte morphology are the hallmark of myeloproliferative neoplasms (MPNs). These neoplasm are also associated with Janus kinase 2 (JAK2) V617F mutation in nearly 95% patients with polycythemia vera (PV), 40% patients of essential thrombocythemia (ET) and 50% patients of myelofibrosis (MF). The utility of megakaryocyte morphology in these disorders in correlation with JAK2 V617F remains unresolved. AIMS: The aim of the study was to assess the morphology of megakaryocytes in bone marrow aspirates (BMAs) and bone marrow biopsies of patients of BCR-ABL negative MPNs with JAK2 V617F mutation...
April 2017: South Asian Journal of Cancer
https://www.readbyqxmd.com/read/28700441/leiomyoma-with-bizarre-nuclei-clinical-and-pathologic-features-of-30-patients
#17
Mehmet Kefeli, Sultan Caliskan, Emel Kurtoglu, Levent Yildiz, Arif Kokcu
Leiomyoma with bizarre nuclei (LBN) have significant cytologic atypia, but high mitotic rate and tumor cell necrosis are absent. Although it is a benign leiomyoma variant, recurrent cases have been described. In this study, we investigated the clinical and pathologic features of LBN and compared them with related studies. A total of 30 patients diagnosed with LBN in our department were included in this study. In all cases, clinical data (age, complaint, surgery type), macroscopic features (size, location, number of leiomyomas, necrosis, and hemorrhage), microscopic features (bizarre cell distribution, bizarre cell density, cellularity, mitotic rate, tumor margin, necrosis, nuclear pseudoinclusions, karyorrhectic nuclei, prominent eosinophilic nucleoli with perinucleolar clearing, cytoplasmic eosinophilic inclusions, staghorn vessels, and alveolar-type edema), and follow-up data (recurrence and survival period) were evaluated...
July 11, 2017: International Journal of Gynecological Pathology
https://www.readbyqxmd.com/read/28664937/leiomyoma-with-bizarre-nuclei-a-morphological-immunohistochemical-and-molecular-analysis-of-31-cases
#18
Jennifer A Bennett, Britta Weigelt, Sarah Chiang, Pier Selenica, Ying-Bei Chen, Ann Bialik, Rui Bi, Anne M Schultheis, Raymond S Lim, Charlotte K Y Ng, Vicente Morales-Oyarvide, Robert H Young, Victor E Reuter, Robert A Soslow, Esther Oliva
Leiomyomas associated with hereditary leiomyomatosis and renal cell carcinoma syndrome and leiomyomas with bizarre nuclei often show overlapping morphological features, in particular cells with prominent eosinophilic nucleoli, perinucleolar halos, and eosinophilic cytoplasmic inclusions. Although hereditary leiomyomatosis and renal cell carcinoma syndrome is defined by fumarate hydratase (FH) germline mutations, resulting in S-(2-succino)-cysteine (2SC) formation, it is unknown whether leiomyomas with bizarre nuclei show similar alterations...
June 30, 2017: Modern Pathology: An Official Journal of the United States and Canadian Academy of Pathology, Inc
https://www.readbyqxmd.com/read/28663245/large-prostatic-stones-with-staghorn-renal-calculus-in-a-61-year-old-man-an-unusual-presentation-of-uncommon-disease
#19
Fouad Hajji, Khalid Lmezguidi, Abdellatif Janane, Ahmed Ameur
Prostatic parenchymal calculi are common in ageing men who are evaluated for benign prostatic hyperplasia or prostate cancer. Giant prostatic calculi are very rare, usually associated with local predisposing factors for urinary stasis and infections, and traditionally managed by open surgery. We present the first case of its kind to be associated with a concurrent staghorn nephrolithiasis, and removed successfully by endoscopic approach using an access sheath through the urethra.
June 29, 2017: BMJ Case Reports
https://www.readbyqxmd.com/read/28658843/anatrophic-nephrolithotomy-in-the-management-of-large-staghorn-calculi-a-single-centre-experience
#20
Ramaiah Keshavamurthy, Vilvapathy Senguttuvan Karthikeyan, Ashwin Mallya, Jayaram Sreenivas, Girish Gurubasappa Nelivigi, Ananth Janarthan Kamath
INTRODUCTION: With advances in endourology, open stone surgery for staghorn calculi has markedly diminished. Anatrophic Nephrolithotomy (AN) is performed for complex staghorn stones which cannot be cleared by a reasonable number of Percutaneous Nephrolithotomy (PNL) attempts. AIM: To assess the indications and outcomes of AN in the modern era. MATERIALS AND METHODS: Between April 2008 and July 2015, AN was done in 14 renal units in 13 patients...
May 2017: Journal of Clinical and Diagnostic Research: JCDR
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