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Sarah H Peterson, Joshua T Ackerman, Collin A Eagles-Smith, Mark P Herzog, C Alex Hartman
Predators sample the available prey community when foraging; thus, changes in the environment may be reflected by changes in predator diet and foraging preferences. We examined Forster's tern (Sterna forsteri) prey species over an 11-year period by sampling approximately 10,000 prey fish returned to 17 breeding colonies in south San Francisco Bay, California. We compared the species composition among repeatedly-sampled colonies (≥ 4 years), using both relative species abundance and the composition of total dry mass by species...
2018: PloS One
Rolando Robert, Kenneth Francis Rodrigues, Zarinah Waheed, Subbiah Vijay Kumar
This study is aimed at establishing a baseline on the genetic diversity of the Acropora corals of Sabah, North Borneo based on variations in the partial COI and CYB nucleotide sequences. Comparison across 50 shallow-water Acropora morphospecies indicated that the low substitution rates in the two genes were due to negative selection and that rate heterogeneity between them was asymmetric. CYB appeared to have evolved faster than COI in the Acropora as indicated by differences in the rate of pairwise genetic distance, degrees of transition bias (Ts /Tv ), synonymous-to-nonsynonymous rate ratio (dN /dS ), and substitution patterns at the three codon positions...
March 9, 2018: Mitochondrial DNA. Part A. DNA Mapping, Sequencing, and Analysis
Engin Kaya, Turgay Ebiloğlu, Murat Zor, Serdar Yalçın, Adem Emrah Coğuplugil, Selahattin Bedir
Objective: To determine the success rate of percutaneous nephrolithotomy (PNL) in kidney stones over 50 milimeters. Material and methods: Twenty-four patients with a renal stone size of >50 mm between January 2007 and December 2016 were enrolled. Stone-free and complication rates were investigated. Results: Twenty-one (87.5%) patients were male and 3 (12.5%) were female. Fifteen (62.5%) stones were located in the right, and 9 (37.5%) in the left kidney...
March 2018: Turkish Journal of Urology
Hikmat Jabrayilov, Murat Yavuz Koparal, Serhat Gürocak, Bora Küpeli, Mustafa Özgür Tan
In this study, we aimed to determine factors affecting the success rate of percutaneous nephrolithotomy (PNL) in children. The series consisted of 41 consecutive children operated on by the same surgical team for renal calculi with PNL between June 2002 and May 2015 in our institution. A single calyx or pelvic stone was described as simple, while calculi located in more than one location (calyx and pelvis or more than one calices) or staghorn stones were described as complex. The procedure was deemed successful if the patient was completely stone-free (SF) or had residual fragments <4 mm...
March 4, 2018: Journal of Clinical Medicine
Tara Nikonow Morgan, Mohammed Shahait, Avinash Maganty, Michael C Ost, Stephen V Jackman, Timothy D Averch, Michelle Jo Semins
BACKGROUND: To describe the clinical characteristics, infectious and kidney function patterns, and overall outcomes in a cohort of patients with staghorn calculi treated conservatively. METHODS: Staghorn calculi treated non-operatively between January 2009 and January 2017 were identified. A retrospective analysis was completed. RESULTS: Twenty-nine patients were identified with median age of 74 (IQR 61-81). Mean follow-up was 24 months. Fifty nine percent (17/29) had complete staghorn calculi with 6/29 (21%) bilateral...
March 1, 2018: Journal of Endourology
Zainal Adwin Zainal Abidin, Firdaus Hayati, Guan Hee Tan, Eng Hong Goh, Jasman Hafidzul, Md Zainuddin Zulkifli
A 46-year gentleman presented with a left-sided lumbar region pain without fever or dysuria. He denied episodes of acute urinary retention. There was a hard mass at the distal urethra with normal laboratory blood tests. Computed tomography urogram revealed a concurrent left renal staghorn calculus and large distal urethral stone. The urethral stone was fragmented via endourologic technique successfully. We report a case of a non-obstructing large urethral calculus in a gentleman with concurrent left renal staghorn calculus and discuss the literature review...
March 2018: Journal of the College of Physicians and Surgeons—Pakistan: JCPSP
Ahmad Awan, Fasil Tiruneh, Hasan Iftikhar, Gbeminyi Samuel, Ahmed Awan
Gastric duplication cyst is an uncommon anomaly typically found in the greater curvature of the stomach. It is usually diagnosed in children and quite difficult to diagnose in adult because of variable presentation. We present a 76-year woman who was admitted for abdominal pain of few weeks' duration. Her X-ray showed calcification in the region of left kidney, and she was subsequently managed with a presumptive diagnosis of staghorn calculus. Computerized Tomography (CT) scan of her abdomen disclosed calcification in the gastric wall for which an endoscopic ultrasound and biopsy was done...
March 2018: Journal of the College of Physicians and Surgeons—Pakistan: JCPSP
James P Meador, Andrew Yeh, Evan P Gallagher
Several metabolic parameters were assessed in juvenile Chinook salmon (Oncorhynchus tshawytscha) and staghorn sculpin (Leptocottus armatus) residing in two estuaries receiving wastewater treatment effluent and one reference estuary. We also conducted a laboratory study with fish dosed for 32 days with 16 of the most common contaminants of emerging concern (CECs) detected in feral fish. Several blood chemistry parameters and other indicators of health were measured in fish from the field and laboratory study that were used to assess potential metabolic disruption...
February 19, 2018: Environmental Pollution
Mohammad Hossein Soltani, Sepehr Hamedanchi, Behnam Shakiba, Hassan Hoshyar
A 40-year-old man was referred to our urology clinic due to vague abdominal pain and hematuria. Computed tomography (CT) without contrast material visualized an ectopic kidney in the left iliac fossa with a complete staghorn stone. Under general anesthesia, operation was done in supine position with a gentle lateral elevation on the right side. The surgeon stands on the right side of the patient. First, a 12 mm port was inserted at the umbilicus using the Hasson technique. After creation of pneumoperitoneum, operation was done by three 5 mm trocars were arranges as paraumbilical, the point between umbilicus and inguinal canal at left and right side...
February 18, 2018: Urology Journal
Marios Hadjipavlou, Vincent Lam, Jai Seth, Faqar Anjum, Seshadri Sriprasad
INTRODUCTION AND OBJECTIVES: Stone formers often have a chronic exposure to significant quantities of ionising radiation from radiological investigations and interventions. Predicting radiation exposure would allow the clinician to quantify expected cumulative radiation and find strategies to minimise exposure. We evaluated radiation exposure during ureteroscopy and laser lithotripsy (URS + LL) for a single stone episode and correlated the results to stone characteristics. METHOD: Data was collected retrospectively for all patients undergoing URS + LL in our institution over a 1 year period...
February 13, 2018: Urologia Internationalis
Patrick Feasel, Alyaa Al-Ibraheemi, Karen Fritchie, Riyam T Zriek, Wei-Lien Wang, Elizabeth Demicco, Marcela Saeb-Lima, John R Goldblum, Brian P Rubin, Jesse K McKenney, Jennifer S Ko, Steven D Billings
While superficial (cutaneous/subcutaneous) solitary fibrous tumor (SFT) have been described, definitive diagnosis is difficult due to overlapping features with other tumors. We describe the largest series to date of superficial SFT. For inclusion, SFT had to arise in dermis or subcutis. Twenty-six cases were identified. Patients ranged from 16 to 80 years (mean, 47 y) with a marked female predominance (19 F; 7 M). Tumors involved the head (11), thigh (7), back (3), shoulder (2), upper arm (1), ankle (1), and great toe (1)...
February 12, 2018: American Journal of Surgical Pathology
Sergio Landa-Juárez, Bárbara M Rivera-Pereira, Ana M Castillo-Fernández
BACKGROUND: Minimally invasive procedures have become the standard option for treatment of urinary stones; the use of more invasive techniques is not a common practice currently. This emergent technology is not always available and laparoscopy is the alternative option. There are few reports of laparoscopic management for urinary lithiasis in pediatric patients. This study is about the use of laparoscopic surgery combined with pyeloscopy as a feasible first-line treatment for pediatric urolithiasis in renal and proximal ureteral locations...
February 6, 2018: Journal of Laparoendoscopic & Advanced Surgical Techniques. Part A
Mohammed Kamil Quraishi, Yih Chyn Phan, Wael Asaad, Naing Lynn
A staghorn calculus is a calculus accommodating the majority of a renal calyx extending into the renal pelvis. A conservative approach to its treatment may lead to high morbidity and mortality rates. Such morbidity usually manifests with renal failure, obstructed upper urinary tractand/or life-threatening sepsis. Prostatic abscesses have never been associated with staghorn calculi in the literature. We report a case of a 70-year-old man who presented with sepsis, which was found to originate from a complex prostatic abscess...
February 1, 2018: BMJ Case Reports
Jaspreet Singh Sandhu, Vishal Varma, Makarand Mishra
Large staghorn calculi in unascended pelvic kidneys and in normally located kidneys with anatomy unsuitable for percutaneous nephrolithotomy have to be treated via pyelolithotomy. When performed laparoscopically, the extraction of these staghorn calculi, without extending skin incision at the port site is challenging. We describe the successful use of laparoscopic laser lithotripsy, intracorporeally, with the entrapped calculus inside the endocatch bag, for fragmentation and retrieval without extension of skin incision...
January 2018: Medical Journal, Armed Forces India
Ricardo Manuel de Oliveira Soares, Alexander Paul Glaser, Jason Evan Cohen, Obianuju Okocha, Robert Brewster Nadler
Background: Percutaneous nephrolithotomy (PCNL) is a procedure typically performed under general anesthesia (GA); however, many patients might be considered unfit for GA and locoregional anesthesia is their only chance to have the procedure done. Case Presentation: A 60-year-old Middle-Eastern female with end-stage lung disease underwent evaluation for lung transplant; she was found to have severe restrictive pattern on steroid and continuous oxygen therapy, pulmonary hypertension with dilated right ventricle, chronic anemia, and asthma...
2018: Journal of Endourology Case Reports
L D Arustamov, M I Katibov, D S Merinov, Sh Sh Gurbanov, A V Artemov, V A Epishov
RELEVANCE: Management of patients with large and staghorn stones of a solitary kidney is widely debated among urologists and has not been sufficiently investigated, which determined the relevance of this study. MATERIALS AND METHODS: The study comprised 80 patients with large (>20 mm) and staghorn stones of an anatomically or functionally solitary kidney. Of them, 58 patients underwent percutaneous nephrolithotripsy (PNL), and 22 had open surgery. The criterion of the treatment effectiveness was the complete stone clearance or small residual fragments sized less than 3 mm...
December 2017: Urologii︠a︡
Liang Huang, Yong Lin, Zhengyan Tang, Dongjie Lie, Zhao Wang, Hequn Chen, Guilin Wang
The aim of the present study was to summarize the management of upper urinary tract calculi in crossed fused renal ectopia (CFRE). Two patients were retrospectively studied in Xiangya Hospital (Changsha, China) and all relevant literature published in English between 1996 and 2016 was reviewed. All patients, including those reported in the literature, were characterized by age, sex, manifestation, therapy history, ectopic side, stone location, surgery and outcome. The patients had a mean age of 42.3±18.5 years, a male: Female ratio of 5:4 and the ratio of renal ectopic side was 9:8 (left:right)...
January 2018: Experimental and Therapeutic Medicine
Xiaobo Ding, Wenqi Wu, Yuchuan Hou, Chunxi Wang, Yanbo Wang
OBJECTIVE: To evaluate the effect of prepuncture on the double-tract percutaneous nephrolithotomy (PCNL) under ultrasound guidance for renal staghorn calculi. METHOD: Double-tract or even multi-tract is necessary for the treatment of staghorn calculi. However, intraoperative injury, exudation, bleeding, and influence of original tract might lead to difficulty in second puncture, thus prolonging operating time, and even lead to puncture failure. We retrospectively reviewed the records of 178 patients with renal staghorn calculi who received double-tract PCNL in our department...
January 31, 2018: Urology
Dinesh Pradhan, Gabriela Quiroga-Garza, Ronald Hrebinko, Rajiv Dhir, Anil V Parwani
Epidermoid cyst of the renal pelvis is exceptionally rare. The histogenetic mechanism has not been well characterized. Herein, we report a case of intrarenal epidermoid cyst in a 62-year-old woman who had undergone left nephrolithotomy for a staghorn calculus. She was being followed up for bilateral renal cysts when a complex mass was noted arising from the lower pole of the left kidney. Renal ultrasound showed a small left kidney with a solid vascular echogenic mass. A laparoscopic radical nephrectomy was performed...
October 2017: Indian Journal of Pathology & Microbiology
Ryan Kendrick Flannigan, Andrew Battison, Shubha De, Mitchell R Humphreys, Markus Bader, Ekaterina Lellig, Manoj Monga, Ben H Chew, Dirk Lange
INTRODUCTION: Struvite stones account for 15% of urinary calculi and are typically associated with urease-producing urinary tract infections and carry significant morbidity. This study aims to characterize struvite stones based on purity of stone composition, bacterial speciation, risk factors, and clinical features. METHODS: Retrospective data was collected from patients diagnosed with infection stones between 2008 and 2012. Stone analysis, perioperative urine cultures, bacterial speciation, and clinical data were collected and analyzed...
December 22, 2017: Canadian Urological Association Journal, Journal de L'Association des Urologues du Canada
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