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L Kumar, A Mehta, A Gudgeon
No abstract text is available yet for this article.
March 15, 2018: Annals of the Royal College of Surgeons of England
Ji Young Bang, Udayakumar Navaneethan, Muhammad K Hasan, Robert Hawes, Shyam Varadarajulu
BACKGROUND & AIMS: Outcomes of endoscopic ultrasound-guided fine needle aspiration (EUS-FNA) evaluation vary with technique, needles, and methods of specimen evaluation. We performed a direct comparison of diagnostic yields of EUS-FNA samples collected using different gauge needles (22- vs 25-gauge), with or without suction. METHODS: We performed a randomized controlled study of 352 patients with suspected pancreatic masses, referred for EUS-FNA at a tertiary referral center...
March 10, 2018: Clinical Gastroenterology and Hepatology
Mohsen Bakouri
In this study, the physiological control algorithm using sliding mode control method is implemented to track the reference input signal. The controller is developed using feed-forward part, reference model, and steady-state flow estimator. The proposed control method is evaluated using a dynamic heart-pump interaction model incorporating descriptions of the cardiovascular system - rotary blood pump. The immediate response of the controller to preload as well as afterload was studied. Stability and feasibility of the control system were demonstrated through the tests...
April 2018: IET Systems Biology
Hasong Jeong, Hye Ra Jung, Ilseon Hwang, Sun Young Kwon, Misun Choe, Yu Na Kang, Eunyoung Jung, Sang Pyo Kim
BACKGROUND: Acetylcholinesterase (AchE) histochemistry has been established as an accurate diagnostic tool for Hirschsprung's disease (HD). In addition, calretinin immunohistochemistry is also reported as a reliable and adjunctive method to diagnose HD. We investigated the diagnostic value of combined AchE histochemistry and calretinin immunohistochemistry in rectal suction biopsies from HD and non-HD patients. METHODS: We retrospectively reviewed 99 rectal suction biopsy specimens including 4 repeat biopsies from 95 patients (34 HD and 61 non-HD)...
March 1, 2018: International Journal of Surgical Pathology
Francesco Macrì, Simona Di Pietro, Cyndi Mangano, Michela Pugliese, Giuseppe Mazzullo, Nicola M Iannelli, Vito Angileri, Simona Morabito, Massimo De Majo
BACKGROUND: In veterinary medicine, contrast-enhanced ultrasonography allowed the accurate quantification of liver, splenic and kidney vascularization in healthy dogs and the differentiation between malignant and benign hepatic, renal, and splenic nodules in dogs and cats based on perfusion patterns. The utility of contrast-enhanced ultrasonography in other applications is still under study. The aim of this study was to develop diagnostic criteria by contrast-enhanced ultrasonography in 8 client-owned adult dogs affected by urinary bladder transitional cell carcinoma with definitive diagnosis made by cytopathologic evaluation after suction biopsy...
March 12, 2018: BMC Veterinary Research
David L Diehl, Shaffer R S Mok, Harshit S Khara, Amitpal S Johal, H Lester Kirchner, Fan Lin
Background and study aims:  Endoscopic ultrasound (EUS)-guided fine-needle aspiration (FNA) or biopsy (FNB) is an indispensable diagnostic tool. Improvements in needling technique have led to increasing tissue yields. Blood clogging of the needle can cause difficulties with specimen handling and stylet passage, which improves when the needle is primed with heparin before use. However, the effect of heparin on cytology, histology or immunochemistry (IHC) of FNA and FNB specimens is unknown...
March 2018: Endoscopy International Open
Noam Smorgick, Avital Mittler, Ido Ben-Ami, Ron Maymon, Zvi Vaknin, Moty Pansky
OBJECTIVE: To investigate whether women who were surgically treated for retained products of conception (RPOC) by either suction curettage or hysteroscopy are at risk for recurrent RPOC on their subsequent pregnancies. STUDY DESIGN: Retrospective analysis of 442 women surgically treated for RPOC following delivery or abortion by suction curettage (N = 63, 14.3%) or hysteroscopy (N = 379, 85.7%). Information on subsequent pregnancies and their outcomes was available for 161 (36...
March 5, 2018: European Journal of Obstetrics, Gynecology, and Reproductive Biology
Justine Dol, Marsha Campbell-Yeo, Gail Tomblin Murphy, Megan Aston, Douglas McMillan, Brianna Richardson
OBJECTIVE: The objective of this review was to evaluate the impact of the Helping Babies Survive program on neonatal outcomes and healthcare provider knowledge and skills. INTRODUCTION: The Helping Babies Survive program consists of three modules: Helping Babies Breathe, Essential Care for Every Baby, and Essential Care for Small Babies. It was developed to reduce preventable newborn deaths through skill-based learning using simulation, learning exercises, and peer-to-peer training of healthcare providers in low-resource areas...
March 2018: JBI Database of Systematic Reviews and Implementation Reports
Eoin J White, Muireann McMahon, Michael T Walsh, J Calvin Coffey, Leonard W O'Sullivan
The aim of this study was to quantify laparoscopic instrument use and actions of both limbs during a sample of common colorectal surgical procedures. A method was devised using Observer XT software to code video recordings. Anonymised HD video recordings of nine laparoscopic colorectal procedures performed by a single surgeon were analysed. We determined the percentage and frequency of instrument use and limb actions throughout the total laparoscopic surgical duration, as well as the duration of instrument inactivity...
March 5, 2018: Applied Ergonomics
Meiqiang Cai, Jian-Qiang Hu, George F Wells, Youngwoo Young Seo, Richard Spinney, Shih-Hsin Ho, Dionysios D Dionysiou, Jie Su, Ruiyang Xiao, Zongsu Wei
Enhancing activated sludge dewaterability is of scientific and engineering importance in the face of accelerated urbanization and stringent environmental regulations. In this study, we investigated the integration of acidification and ultrasound (A/US) treatments for improving sludge dewaterability at both bench‒ and pilot‒scales. Our results showed that the A/US system exhibited significantly improved sludge dewatering performance, characterized by capillary suction time, cake moisture, and water/solid content of sludge cake...
March 8, 2018: Environmental Science & Technology
Laura R Rich, Angus M Brown
The stimulus evoked compound action potential (CAP), recorded using suction electrodes, provides an index of the relative number of conducting axons within a nerve trunk. As such the CAP has been used to elucidate the diverse mechanisms of injury resulting from a variety of metabolic insults to central nervous white matter, whilst also providing a model with which to assess the benefits of clinically relevant neuro-protective strategies. In addition the technique lends itself to the study of metabolic cell-to-cell signalling that occurs between glial cells and neurones, and to exploring the ability of non-glucose substrates to support axon conduction...
March 8, 2018: Journal of Physiology
Ester Comellas, Facundo J Bellomo, Iván Rosales, Luis F Del Castillo, Ricardo Sánchez, Pau Turon, Sergio Oller
Endoluminal vacuum-assisted closure (E-VAC) is a promising therapy to treat anastomotic leakages of the oesophagus and bowel which are associated with high morbidity and mortality rates. An open-pore polyurethane foam is introduced into the leakage cavity and connected to a device that applies a suction pressure to accelerate the closure of the defect. Computational analysis of this healing process can advance our understanding of the biomechanical mechanisms at play. To this aim, we use a dual-stage finite-element analysis in which (i) the structural problem addresses the cavity reduction caused by the suction and (ii) a new constitutive formulation models tissue healing via permanent deformations coupled to a stiffness increase...
February 2018: Royal Society Open Science
Martin Luquet, Maurice Hullé, Jean-Christophe Simon, Nicolas Parisey, Christelle Buchard, Bruno Jaloux
Insect populations are prone to respond to global changes through shifts in phenology, distribution and abundance. However, global changes cover several factors such as climate and land use, the relative importance of these being largely unknown. Here, we aim at disentangling the effects of climate, land use and geographical drivers on aphid abundance and phenology in France, at a regional scale and over the last 40 years. We used aerial data obtained from suction traps between 1978 and 2015 on five aphid species varying in their degree of specialization to legumes, along with climate, legume crop area and geographical data...
March 7, 2018: Insect Science
Corrine Jacobs, Roi Holzman
Suction feeding is a widespread prey capture strategy among aquatic vertebrates. It is almost omnipresent across fishes, and has repeatedly evolved in other aquatic vertebrates. By rapidly expanding the mouth cavity, suction-feeders generate a fluid flow outside of their mouth, drawing prey inside. Fish and other suction feeding organisms display remarkable trophic diversity, echoed in the diversity of their skull and mouth morphologies. Yet, it is unclear how variable suction flows are across species, and whether variation in suction flows supports trophic diversity...
March 6, 2018: Journal of Experimental Biology
Dmitry Telyshev, Maxim Denisov, Alexander Pugovkin, Sergey Selishchev, Igor Nesterenko
In this work, the study results of an implantable pediatric rotary blood pump (PRBP) are presented. They show the results of the numerical simulation of fluid flow rates in the pump. The determination method of the backflows and stagnation regions is represented. The operating points corresponding to fluid flow rates of 1, 3, and 5 L/min for 75-80 mm Hg pressure head are investigated. The study results have shown that use of the pump in the 1 L/min operating point can potentially lead to the appearance of backflows and stagnation regions...
March 6, 2018: Artificial Organs
Abimbola Adike, Matthew R Buras, Suryakanth R Gurudu, Jonathan A Leighton, Douglas O Faigel, Kevin C Ruff, Sarah B Umar, Francisco C Ramirez
Background: The impact of Boston bowel preparation scale (BBPS) scores on the adenoma detection rate (ADR) in each segment has not been adequately addressed. The aim of this study was to determine the association between segmental or overall ADR and serrated polyp detection rate (SDR) with segmental and total BBPS scores. Methods: All outpatient screening colonoscopies with documented BBPS scores were retrospectively reviewed at a tertiary institution from January to December 2013...
March 2018: Annals of Gastroenterology: Quarterly Publication of the Hellenic Society of Gastroenterology
Stacy Keough, Jonathan Danielson, Jordan M Marshall, Doris Lagos-Kutz, David J Voegtlin, Rajagopalbabu Srinivasan, Punya Nachappa
Thrips-infesting soybeans were considered of minor economic importance, but recent evidence of their ability to transmit a newly identified soybean virus, Soybean vein necrosis virus (SVNV), has raised their profile as pests. Season-long surveys were conducted using suction traps to determine the effects of temperature and precipitation on the spatiotemporal patterns of three vector species of SVNV, Neohydatothrips variabilis (Beach) (Thysanoptera: Thripidae) (soybean thrips), Frankliniella tritici (Fitch) (Thysanoptera: Thripidae) (eastern flower thrips), and Frankliniella fusca (Hinds) (Thysanoptera: Thripidae) (tobacco thrips) in soybean fields in Indiana in 2013 and 2014...
March 1, 2018: Environmental Entomology
Dorota Konietzko-Meier, Kamil Gruntmejer, Jordi Marcé-Nogué, Adam Bodzioch, Josep Fortuny
Finite Element Analysis (FEA) is a useful method for understanding form and function. However, modelling of fossil taxa invariably involves assumptions as a result of preservation-induced loss of information in the fossil record. To test the validity of predictions from FEA, given such assumptions, these results could be compared to independent lines of evidence for cranial mechanics. In the present study a new concept of using bone microstructure to predict stress distribution in the skull during feeding is put forward and a correlation between bone microstructure and results of computational biomechanics (FEA) is carried out...
2018: PeerJ
Quoc Tran, Ryo Mizumoto, Daniel Mehanna
INTRODUCTION: Subcutaneous emphysema (SE) is a frequent and often self-limiting complication of tube thoracostomy or other cardiothoracic procedures. On rare occasions, severe and extensive surgical emphysema marked by palpable cutaneous tension, dysphagia, dysphonia, palpebral closure or associated with pneumoperitoneum, airway compromise, "tension phenomenon" and respiratory failure require treatment. PRESENTATION OF CASE: A 67 year old lady presented with a large spontaneous pneumothorax on the background of end-stage chronic obstructive pulmonary disease (COPD) and newly diagnosed lung cancer, developed extensive surgical emphysema following insertion of a chest drain...
February 9, 2018: International Journal of Surgery Case Reports
Tsunemasa Matsubara, Kei Yamada, Kimiaki Sato, Masafumi Gotoh, Kensei Nagata, Naoto Shiba
BACKGROUND CONTEXT: Patients with infective spondylodiscitis who failed conservative treatment are generally indicated for open surgery. However, some patients are poor candidates for standard surgery, hence the need to evaluate less invasive approaches. Good outcomes were previously reported for percutaneous suction aspiration and drainage (PSAD) in the treatment of infective spondylodiscitis resistant to conservative therapy. We recently extended the surgical approach of PSAD to allow drainage of paravertebral or epidural abscesses in patients with progressive infective spondylodiscitis...
February 26, 2018: Spine Journal: Official Journal of the North American Spine Society
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