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https://www.readbyqxmd.com/read/28529384/the-pelskin-project-part-v-towards-the-control-of-the-flow-around-aerofoils-at-high-angle-of-attack-using-a-self-activated-deployable-flap
#1
Marco E Rosti, Laura Kamps, Christoph Bruecker, Mohammad Omidyeganeh, Alfredo Pinelli
During the flight of birds, it is often possible to notice that some of the primaries and covert feathers on the upper side of the wing pop-up under critical flight conditions, such as the landing approach or when stalking their prey (see Fig. 1) . It is often conjectured that the feathers pop up plays an aerodynamic role by limiting the spread of flow separation . A combined experimental and numerical study was conducted to shed some light on the physical mechanism determining the feathers self actuation and their effective role in controlling the flow field in nominally stalled conditions...
2017: Meccanica
https://www.readbyqxmd.com/read/28529059/a-review-of-human-neuroimaging-investigations-involved-with-central-autonomic-regulation-of-baroreflex-mediated-cardiovascular-control
#2
Derek S Kimmerly
Effective regulation of central blood volume and arterial pressure is critical for optimal cardiovascular homeostasis. Inadequate regulation of mean arterial pressure has important pathophysiological implications including syncope, end organ damage, and stroke. Such regulation requires appropriate central integration of barosensory afferents and reflex autonomic control of the heart and blood vessels. The neural pathways involved with the baroreflex include brainstem nuclei that receive modulatory input from higher brain centres...
May 15, 2017: Autonomic Neuroscience: Basic & Clinical
https://www.readbyqxmd.com/read/28524041/-effect-of-endotracheal-tube-with-subglottic-suction-line-to-stop-tracheostomy-bleeding-in-critical-patients
#3
Qiaoke Li
OBJECTIVE: To observe the effect of endotracheal tube with subglottic suction line on tracheostomy bleeding in critical patients. METHODS: This procedure was utilized for 35 critical patients with tracheostomy bleeding. With the help of bronchoscope, the endotracheal tube with subglottic suction line was inserted during tracheostomy to 0.5-1.0 cm above the carina. Then aerocyst of the tube was inflated, vacuum was set up for continuous suction via suction port, and hemocoagulase was injected to the opening of tracheostomy...
May 2017: Zhonghua Wei Zhong Bing Ji Jiu Yi Xue
https://www.readbyqxmd.com/read/28523061/duel-stage-treatment-for-biliary-cysts-with-cholangitis-during-pregnancy
#4
Baoxing Jia, Ludong Tan, Zhe Jin, Yahui Liu
BACKGROUND & OBJECTIVE: Biliary cysts in pregnant women are a complex medical issue, especially when complicated with cholangitis. It is a serious and life-threatening diagnosis that can seriously endanger both the expectant mother and the fetus. However, during pregnancy, surgical treatment would lead to further complications and higher fetal mortality. Here, we propose a novel therapeutic approach that would be safe for both mother and child during pregnancy, with a definitive treatment postponed until after delivery...
March 2017: Pakistan Journal of Medical Sciences Quarterly
https://www.readbyqxmd.com/read/28521473/diagnostic-accuracies-of-endoscopic-ultrasound-guided-fine-needle-aspiration-with-distinct-negative-pressure-suction-techniques-in-solid-lesions-a-retrospective-study
#5
Ronghua Wang, Jinlin Wang, Yawen Li, Yaqi Duan, Xiaoli Wu, Bin Cheng
Endoscopic ultrasound (EUS)-guided fine-needle aspiration (EUS-FNA) is highly accurate in obtaining specific diagnoses for various diseases. The present study aimed to evaluate the diagnostic yields, accuracies and sampling adequacies, of slow-pull, 5 ml suction and 10 ml suction techniques in EUS-FNA of solid lesions. The present study was a retrospective comparative study, which was performed in tertiary academic centers, recognized for their expertise in EUS and EUS-guided FNA. The present study involved 149 patients who underwent EUS-FNA of solid masses...
May 2017: Oncology Letters
https://www.readbyqxmd.com/read/28516110/large-bowel-obstruction-following-endoscopic-spray-cryotherapy-for-palliation-of-rectal-cancer-bleeding
#6
Ravi Prakash, Digant Gupta, Pankaj Vashi
We report a unique case of a 79-year-old woman with metastatic rectal cancer who developed bowel obstruction following endoscopic cryotherapy with liquid nitrogen for palliation of bleeding in the rectum. She developed abdominal distention and pain following the procedure. Computed tomography of the abdomen revealed a paraumbilical hernia containing a segment of transverse colon resulting in partial bowel obstruction. It appears that the recurrent freeze-thaw cycles with poor decompression of the colon despite active venting suction during cryotherapy may have resulted in bowel distention and collapse, causing conformational changes resulting in partial bowel obstruction due to a paraumbilical hernia...
2017: ACG Case Reports Journal
https://www.readbyqxmd.com/read/28515754/traumatic-tension-pneumopericardium-and-amputation-of-the-left-main-bronchus
#7
Lech Krawczyk, Tomasz P Byrczek, Agata Łuczyk, Bogusz D Jagoda, Rafał Kazanowski, Michał J Stasiowski
A 27-year-old woman sustained a blunt chest trauma after a car accident. Computed tomography revealed tension pneumopericardium, bilateral pneumothorax, and a suspected rupture of the left main bronchus. Emergent pericardial needle aspiration was successfully performed. Bronchial amputation was confirmed by bronchofiberoscopy. Despite total detachment of the distal part of the bronchial tree, the ventilation of the left lung was maintained without air leakage by use of pleural drains. Bronchial obturation resulted from the injury, and was effectively treated by bronchoscopic sputum suction at the distal end of the bronchus...
March 2017: Kardiochirurgia i Torakochirurgia Polska, Polish Journal of Cardio-Thoracic Surgery
https://www.readbyqxmd.com/read/28511699/does-intraoperative-closed-suction-drainage-influence-the-rate-of-pancreatic-fistula-after-pancreaticoduodenectomy
#8
Ophélie Aumont, Aurélien Dupré, Adeline Abjean, Bruno Pereira, Julie Veziant, Bertrand Le Roy, Denis Pezet, Emmanuel Buc, Johan Gagnière
BACKGROUND: Although drainage of pancreatic anastomoses after pancreaticoduodenectomy (PD) is still debated, it remains recommended, especially in patients with a high risk of post-operative pancreatic fistula (POPF). Modalities of drainage of pancreatic anastomoses, especially the use of passive (PAD) or closed-suction (CSD) drains, and their impact on surgical outcomes, have been poorly studied. The aim was to compare CSD versus PAD on surgical outcomes after PD. METHODS: Retrospective analysis of 197 consecutive patients who underwent a standardized PD at two tertiary centers between March 2012 and April 2015...
May 16, 2017: BMC Surgery
https://www.readbyqxmd.com/read/28511175/flexible-19-gauge-endobronchial-ultrasound-guided-transbronchial-needle-aspiration-needle-first-experience
#9
Chung Tyan, Priya Patel, Kasia Czarnecka, Daniela Gompelmann, Ralf Eberhardt, Marc Fortin, Paul MacEachern, Christopher A Hergott, Elaine Dumoulin, Alain Tremblay, Samuel V Kemp, Pallav L Shah, Felix J F Herth, Kazuhiro Yasufuku
BACKGROUND: Endobronchial ultrasound-guided transbronchial needle aspiration (EBUS-TBNA) is a well-established first-line invasive modality for mediastinal lymph node staging in lung cancer patients and in the diagnostic workup of patients with mediastinal adenopathy. With the current 21- and 22-gauge (G) EBUS-TBNA needles, the procedure can be limited by the degree of flexibility in the needle and the size of the lumen in tissue acquisition. OBJECTIVE: We report our initial experience with a first-generation flexible 19-G EBUS-TBNA (Flex 19G; Olympus Respiratory America, Redmond, WA, USA) needle with regards to efficacy and safety...
May 17, 2017: Respiration; International Review of Thoracic Diseases
https://www.readbyqxmd.com/read/28508893/south-american-plate-advance-and-forced-andean-trench-retreat-as-drivers-for-transient-flat-subduction-episodes
#10
Gerben Schepers, Douwe J J van Hinsbergen, Wim Spakman, Martha E Kosters, Lydian M Boschman, Nadine McQuarrie
At two trench segments below the Andes, the Nazca Plate is subducting sub-horizontally over ∼200-300 km, thought to result from a combination of buoyant oceanic-plateau subduction and hydrodynamic mantle-wedge suction. Whether the actual conditions for both processes to work in concert existed is uncertain. Here we infer from a tectonic reconstruction of the Andes constructed in a mantle reference frame that the Nazca slab has retreated at ∼2 cm per year since ∼50 Ma. In the flat slab portions, no rollback has occurred since their formation at ∼12 Ma, generating 'horse-shoe' slab geometries...
May 16, 2017: Nature Communications
https://www.readbyqxmd.com/read/28505731/dewetting-mediated-pattern-formation-inside-the-coffee-ring
#11
Weibin Li, Ding Lan, Yuren Wang
The rearrangement of particles in the final stage of droplet evaporation has been investigated by utilizing differential interference contrast microscopy and the formation mechanism of a network pattern inside a coffee ring has been revealed. A tailored substrate with a circular hydrophilic domain is prepared to obtain thin liquid film containing monolayer particles. Real-time bottom-view images show that the evolution of a dry patch could be divided into three stages: rupture initiation, dry patch expansion, and drying of the residual liquid...
April 2017: Physical Review. E
https://www.readbyqxmd.com/read/28504504/-cornelia-de-lange-syndrome-and-multiple-hormonal-deficiency-an-unusual-association-clinical-case
#12
Víctor M Mora-Bautista, Víctor Mendoza-Rojas, Gustavo A Contreras-García
Cornelia de Lange syndrome is a genetic disease characterized by distinctive facial features, failure to thrive, microcephaly and several malformations associated. Its main endocrinological features are anomalies of the genitalia. We present a 13-year-old boy, who suffered from complicated aspiration pneumonia and showed Cornelia de Lange syndrome phenotype, with global developmental delay, suction-swallowing abnormalities, short stature and abnormal genitalia associated. His bone age was delayed, so he underwent full endocrinological panel...
June 1, 2017: Archivos Argentinos de Pediatría
https://www.readbyqxmd.com/read/28504452/effect-of-co2-concentration-on-mosquito-collection-rate-using-odor-baited-suction-traps
#13
Lee McPhatter, Alec C Gerry
Carbon dioxide (CO2 ) has been used for decades to enhance capture of host-seeking mosquitoes when released in association with traps commonly used by mosquito and vector control agencies. However, there is little published work evaluating the effect of altering CO2 release rates relative to the number of mosquitoes captured in these traps. This study investigated how varying CO2 concentration altered the mosquito collection rate at a freshwater wetlands in southern California. Host-seeking mosquitoes were captured in CDC-style traps baited with one of six CO2 release rates ranging from 0-1,495 ml/min from gas cylinders...
June 2017: Journal of Vector Ecology: Journal of the Society for Vector Ecology
https://www.readbyqxmd.com/read/28503328/phrenic-pacing-compared-with-mechanical-ventilation
#14
Morten Packert Andersen, Michael Laub, Fin Biering-Sørensen
STUDY DESIGN: Comparable case series. OBJECTIVES: High-cervical spinal cord injury (SCI) may disrupt the ability to breathe sufficiently. To restore respiration a phrenic nerve pacer can be implanted. The aims of this study were to describe the use of phrenic nerve pacing in tetraplegics in Denmark and compare the users with a population of ventilator dependent tetraplegics. SETTING: Clinics for Spinal Cord Injuries, and Respiratory Centre East, Rigshospitalet, University of Copenhagen, Copenhagen, Denmark...
2017: Spinal Cord Series and Cases
https://www.readbyqxmd.com/read/28502655/earliest-mysticete-from-the-late-eocene-of-peru-sheds-new-light-on-the-origin-of-baleen-whales
#15
Olivier Lambert, Manuel Martínez-Cáceres, Giovanni Bianucci, Claudio Di Celma, Rodolfo Salas-Gismondi, Etienne Steurbaut, Mario Urbina, Christian de Muizon
Although combined molecular and morphological analyses point to a late middle Eocene (38-39 million years ago) origin for the clade Neoceti (Odontoceti, echolocating toothed whales plus Mysticeti, baleen whales, and relatives), the oldest known mysticete fossil dates from the latest Eocene (about 34 million years ago) of Antarctica [1, 2]. Considering that the latter is not the most stemward mysticete in recent phylogenies and that Oligocene toothed mysticetes display a broad morphological disparity most likely corresponding to contrasted ecological niches, the origin of mysticetes from a basilosaurid ancestor and its drivers are currently poorly understood [1, 3-8]...
May 5, 2017: Current Biology: CB
https://www.readbyqxmd.com/read/28499668/a-multicenter-feasibility-study-on-ultrafiltration-via-a-single-peripheral-venous-access-in-acute-heart-failure-with-overt-fluid-overload
#16
Marco Morpurgo, Mario Pasqualini, Maria Cristiana Brunazzi, Gabriele Vianello, Roberto Valle, Loris Roncon, Fulvio Fiorini, Nadia Aspromonte, Mario Barbiero, Marco Goldoni, Giancarlo Marenzi
OBJECTIVES: The need for a central venous catheter has limited the widespread use of ultrafiltration in daily clinical practice for the treatment of acute heart failure (AHF) with overt fluid overload. We evaluated the feasibility of a new ultrafiltration device, the CHIARA (Congestive Heart Impairment Advanced Removal Approach) system, that utilizes a single-lumen cannula (17G, multi-hole) inserted in a peripheral vein of the arm. METHODS: In this multicenter, prospective, feasibility study, consecutive ultrafiltration treatments (lasting ≥6 hours and with an ultrafiltration rate ≥100ml/h) with the CHIARA device and a single peripheral venous approach were performed at 6 Italian hospitals...
May 2, 2017: International Journal of Cardiology
https://www.readbyqxmd.com/read/28498646/cook-cervical-ripening-balloon-successfully-prevents-excessive-hemorrhage-combined-with-ultrasound-guided-suction-curettage-in-the-treatment-of-cesarean-scar-pregnancy
#17
Chaoying Wu, Yong Li, Wenfeng Ye, Wenqin Ma, Danmei Zhao
AIM: Cesarean scar pregnancy (CSP) is a rare occurrence of ectopic pregnancy. CSP incidence has increased significantly as a result of the increase in cesarean section rates. At present, there are no standard treatment guidelines for CSP; therefore, we report a minimally invasive treatment method for patients diagnosed with CSP. METHODS: This study included 15 women who were diagnosed with CSP. Ultrasound-guided suction curettage was performed on all patients. The Cook Cervical Ripening Balloon was used to tamponade and prevent hemorrhage during the procedure...
May 12, 2017: Journal of Obstetrics and Gynaecology Research
https://www.readbyqxmd.com/read/28497247/-medial-closed-wedge-osteotomy-of-the-distal-femur-in-biplanar-technique-and-a-specific-plate-fixator
#18
REVIEW
P Lobenhoffer, K Kley, D Freiling, R van Heerwaarden
OBJECTIVE: Correction of distal femur deformity by closed-wedge biplanar osteotomy. INDICATIONS: Metaphyseal frontal plane deformities of the femur. CONTRAINDICATIONS: Osteoarthritis of the contralateral compartment, total loss of the contralateral meniscus, acute/chronic infection, limited range-of-motion, poor soft-tissue conditions at site of surgery. SURGICAL TECHNIQUE: Skin incision at metaphyseal area of femur...
May 11, 2017: Operative Orthopädie und Traumatologie
https://www.readbyqxmd.com/read/28497007/accuracy-of-blood-loss-measurement-during-cesarean-delivery
#19
Sahar V Doctorvaladan, Andrea T Jelks, Eric W Hsieh, Robert L Thurer, Mark I Zakowski, David C Lagrew
Objective This study aims to compare the accuracy of visual, quantitative gravimetric, and colorimetric methods used to determine blood loss during cesarean delivery procedures employing a hemoglobin extraction assay as the reference standard. Study Design In 50 patients having cesarean deliveries blood loss determined by assays of hemoglobin content on surgical sponges and in suction canisters was compared with obstetricians' visual estimates, a quantitative gravimetric method, and the blood loss determined by a novel colorimetric system...
April 2017: American Journal of Perinatology Reports
https://www.readbyqxmd.com/read/28496930/percutaneous-vacuum-assisted-thrombectomy-device-used-for-removal-of-large-vegetations-on-infected-pacemaker-and-defibrillator-leads-as-an-adjunct-to-lead-extraction
#20
Raymond H M Schaerf, Sasan Najibi, John Conrad
This case series reports our early experience with a minimally invasive percutaneous method of safely removing large vegetations during lead extraction in septic cardiac implantable electronic devices (CIED). Debate exists concerning the management of vegetations involving these devices. Lead extraction is mandated for infections, but vegetations may embolize, causing complications. Surgical debridement is recommended; alternatives include cardiopulmonary bypass, minimally invasive thoracotomy, or transatrial approaches...
October 2016: Journal of Atrial Fibrillation
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