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https://www.readbyqxmd.com/read/29692065/-responses-of-stem-hydraulic-traits-in-salix-psammophila-and-caragana-korshinskii-to-manipulated-precipitation-variation
#1
Li Ru Chen, Yang Yang Li
With a precipitation manipulation experiment (Control, +45% and -50%), the responses of stem hydraulic traits in two dominant shrubs (Salix psammophila and Caragana korshinskii) of water-wind erosion crisscross region of the Loess Plateau to projected precipitation variation were examined to elucidate their adaptability to future precipitation changes. Results showed that the specific hydraulic conductivity (Ks ), leaf specific conductivity (Kl ) and Huber value in S. psammophila increased significantly by irrigation but showed no responses to drought...
February 2018: Ying Yong Sheng Tai Xue Bao, the Journal of Applied Ecology
https://www.readbyqxmd.com/read/29692047/-divergence-between-ring-and-diffuse-porous-wood-types-in-broadleaf-trees-of-changbai-mountains-results-in-substantial-differences-in-hydraulic-traits
#2
Xiao Han Yin, Guang You Hao
Hydraulic characteristics of trees are strongly influenced by their xylem structures. The divergence in wood type between ring-porous and diffuse-porous species is expected to lead to significantly different hydraulic architecture between these two functional groups. However, there is a lack of comprehensive comparative studies in hydraulic traits between the two groups, in that no study has compared the whole-shoot level hydraulic conductance and detailed pit-level xylem anatomy has not been reported yet. In the present study, detailed hydraulic related traits were stu-died in three ring-porous and four diffuse-porous tree species commonly found in the broadleaf tree species of the Changbai Mountains, including whole-shoot hydraulic conductance (Kshoot ), resis-tance to drought-induced embolism (P50 ), and detailed tissue- and pit-level anatomical characteristics...
February 2018: Ying Yong Sheng Tai Xue Bao, the Journal of Applied Ecology
https://www.readbyqxmd.com/read/29691809/standardization-of-simple-auxiliary-method-beneficial-to-total-endoscopic-thyroidectomy-on-patients-with-ptc-based-on-retrospective-study-of-356-cases
#3
Shouyi Yan, Wenxin Zhao, Bo Wang, Liyong Zhang
OBJECTIVE: Total endoscopic thyroidectomy (TET) is paid increasing attention to by patients, especially those with thyroid carcinoma. The aim of this study is to evaluate the clinic feasibility of standardization of simple auxiliary method (SOSAM) involved in operating bed adjustment, location of skin traction points and thyroid retractor points for the TET via bilateral breast approach. METHODS: A retrospective study was performed on 356 patients with thyroid carcinoma, who had undergone the TET...
April 24, 2018: Endocrine
https://www.readbyqxmd.com/read/29691787/the-role-of-circle-of-willis-anatomy-variations-in-cardio-embolic-stroke-a-patient-specific-simulation-based-study
#4
Debanjan Mukherjee, Neel D Jani, Jared Narvid, Shawn C Shadden
We describe a patient-specific simulation based investigation on the role of Circle of Willis anatomy in cardioembolic stroke. Our simulation framework consists of medical image-driven modeling of patient anatomy including the Circle, 3D blood flow simulation through patient vasculature, embolus transport modeling using a discrete particle dynamics technique, and a sampling based approach to incorporate parametric variations. A total of 24 (four patients and six Circle anatomies including the complete Circle) models were considered, with cardiogenic emboli of varying sizes and compositions released virtually and tracked to compute distribution to the brain...
April 24, 2018: Annals of Biomedical Engineering
https://www.readbyqxmd.com/read/29691614/catheter-embolization-of-type-ii-congenital-extrahepatic-portosystemic-shunt-with-hematochezia-a-case-series-and-review-of-the-literature
#5
Bo Zhang, Ke-Tong Wu, Lin Li, Hai-Yang Lai
Hematochezia is a rare clinical presentation of congenital extrahepatic portosystemic shunt (CEPS). We describe a series of three patients with type II CEPS presenting as hematochezia that were treated by catheter embolization, followed by a brief review of published articles. Hematochezia of the patients was due to the giant inferior mesenteric vein, superior rectal vein and colonic varices. The catheter embolization was successfully accomplished in all of the patients. After a mean follow-up of 27 months, no serious adverse effects were observed...
April 24, 2018: Cardiovascular and Interventional Radiology
https://www.readbyqxmd.com/read/29691186/does-micropuncture-technique-really-help-reduce-vascular-complications
#6
Hari Bogabathina, Sampath Singireddy, Runhua Shi, Liam Morris, Abdulrahman Abdulbaki, Henock Zabher, Pavan Katikaneni, Kalgi Modi
BACKGROUND: Micropuncture technique (MPT) is being adapted nationally to reduce vascular complications (VC). We initiated a quality improvement project in our cath lab to reduce VCs utilizing MPT. METHODS: We utilized MPT on all of our non-STEMI femoral artery (FA) access cases starting September 2016. As a comparator group, we collected data from April to August 2016. Anatomic localization of FA and fluoroscopic marking of femoral head was utilized in all cases...
March 26, 2018: Cardiovascular Revascularization Medicine: Including Molecular Interventions
https://www.readbyqxmd.com/read/29691178/a-higher-altitude-is-an-independent-risk-factor-for-venous-thromboembolisms-after-total-hip-arthroplasty
#7
Dhanur Damodar, Chester J Donnally, Jonathan I Sheu, Tsun Y Law, Martin W Roche, Victor H Hernandez
BACKGROUND: High altitudes lead to physiological changes that may predispose to venous thromboembolisms (VTEs) including deep vein thrombosis and pulmonary embolism (PE). No prior study has evaluated if there is also a higher risk of VTEs for total hip arthroplasties (THAs) performed at higher elevations. The purpose of this retrospective study was to identify if undergoing THA at a higher altitude center (>4000 feet above sea level) is an independent risk factor for a postoperative VTE...
March 27, 2018: Journal of Arthroplasty
https://www.readbyqxmd.com/read/29690892/the-efficacy-and-safety-of-topical-administration-of-tranexamic-acid-in-spine-surgery-a-meta-analysis
#8
Wei Luo, Ru-Xin Sun, Han Jiang, Xin-Long Ma
BACKGROUND: We conducted a meta-analysis from randomized controlled trials (RCTs) and non-RCTs to assess the efficacy and safety of tranexamic acid (TXA) in spine surgery. METHODS: Potentially relevant academic articles were identified from the Cochrane Library, MEDLINE (1966-2017.11), PubMed (1966-2017.11), Embase (1980-2017.11), and ScienceDirect (1985-2017.11). Secondary sources were identified from the references of the included literature. The pooled data were analyzed using RevMan 5...
April 24, 2018: Journal of Orthopaedic Surgery and Research
https://www.readbyqxmd.com/read/29689593/transcatheter-technologies-for-valvular-replacement-an-update
#9
Antonio Nenna, Sanjeet Singh Avtaar Singh, Simone Morganti, Laura Mazzocchi, Ferdinando Auricchio, Massimo Chello, Francesco Nappi
This report provides a brief overview of the basic principles, recent advances, and recommendations for the treatment of severe aortic stenosis with transcatheter aortic valve replacement (TAVR) in adults. Approaches that avoid neurological, cardiac and peripheral vascular complications have been developed. In addition, TAVR can be performed in intermediate- and low-risk patients. However, these procedures require specialized training and may not allow for complete resolution of the underlying issue. Even if cardiologists learn to perform the procedure and despite advancements in device technology, TAVR is still susceptible to structural valve degeneration, thrombosis and late cerebral embolization...
April 23, 2018: Surgical Technology International
https://www.readbyqxmd.com/read/29689391/risk-factors-for-in-hospital-seizures-and-new-onset-epilepsy-in-coil-embolization-of-aneurysmal-subarachnoid-hemorrhage
#10
Suresh K Nathan, Neel Brahme, Ahmed Kashkoush, Katherine Anetakis, Brian T Jankowitz, Parthasarathy D Thirumala
OBJECTIVE: The study aims to determine risk factors for inpatient seizures and long-term epilepsy in patients receiving coil embolization for aneurysm associated subarachnoid hemorrhage. METHODS: A retrospective chart review was conducted for patients admitted at University of Pittsburgh Medical Center from 2010 - 2014 for subarachnoid hemorrhage. Only patients with coil embolization were included. Variables such as subdural hematoma, cerebral infarction, post-operative vasospasm, cerebral edema, and mass effect were collected...
April 21, 2018: World Neurosurgery
https://www.readbyqxmd.com/read/29688933/radiologic-aspects-of-the-diagnosis-of-pulmonary-embolism-in-pregnancy
#11
Benjamin S Harris, Katherine C Bishop, Jeffrey A Kuller
Pulmonary embolism in pregnancy is a leading cause of maternal mortality. The clinical presentation is often nonspecific, making imaging essential for accurate diagnosis. After reviewing the literature on the radiologic diagnosis of pulmonary embolism in pregnancy, we concluded that both computed tomography pulmonary angiography and lung perfusion scintigraphy are sensitive with high positive predictive values in the presence of high clinical suspicion, but lung perfusion scintigraphy is recommended given lower maternal breast exposure to ionizing radiation and lower fetal contrast exposure...
June 2018: Clinical Obstetrics and Gynecology
https://www.readbyqxmd.com/read/29688745/evaluation-of-dual-energy-computed-tomography-iodine-mapping-within-the-myocardial-blood-pool-for-detection-of-acute-myocardial-infarction-correlation-with-histopathologic-findings-in-a-porcine-model
#12
Kai Sun, Ruijuan Han, Ruiping Zhao, Shuancheng Bai, Junyan Wang, Jiang Hu, Bin Lu
OBJECTIVE: We assessed the diagnostic value of "one-step" dual-energy computed tomography (DECT) in combination with coronary CT angiography and iodine mapping within the myocardial blood pool in detecting AMI. METHODS: Five minipigs were subjected to transcatheter embolization of coronary artery with a gelatin sponge to induce AMI. Arterial-phase myocardial DECT imaging was carried out 1 h before and 24 h after embolism of the coronary. Color-coded iodine maps were used to evaluate myocardial blood pool deficits in the 17-segment model...
April 24, 2018: British Journal of Radiology
https://www.readbyqxmd.com/read/29688312/a-prospective-5-year-follow-up-after-population-based-systematic-screening-for-atrial-fibrillation
#13
Johan Engdahl, Anders Holmén, Mårten Rosenqvist, Ulf Strömberg
Aims: Thrombo-embolic stroke risk in atrial fibrillation (AF) is significantly reduced with oral anticoagulant (OAC) treatment. Atrial fibrillation is often asymptomatic (silent) and therefore undiagnosed. The long-term course of silent AF as well as OAC treatment adherence after AF screening is not known. We aim at studying long-term adherence to OAC treatment, AF symptoms, and stroke incidence on population level after systematic AF screening. Methods and results: All inhabitants in a Swedish municipality who were born in 1934 and 1935 (n = 1335) were invited to participate in an AF screening trial between 2010 and 2012...
April 24, 2018: Europace: European Pacing, Arrhythmias, and Cardiac Electrophysiology
https://www.readbyqxmd.com/read/29688026/incidental-pulmonary-embolism-in-oncology-patients-with-current-macroscopic-malignancy-incidence-in-different-tumour-type-and-impact-of-delayed-treatment-on-survival-outcome
#14
Maung Maung Myat Moe, Sridhar Redla
OBJECTIVES: To evaluate the incidence and outcome of incidental PE (iPE) in patients with current macroscopic malignancy and delayed anticoagulation due to late reporting of CT scan. METHODS: Reports of CT thorax with iv contrast done on oncology patients between 01.01.15 and 31.12.15 in two district general hospitals in UK were reviewed. Electronic patient records of iPE patients were reviewed for demographic and treatment information. RESULTS: 26 iPEs were reported in 1,604 scans (731 patients), incidence 1...
April 24, 2018: British Journal of Radiology
https://www.readbyqxmd.com/read/29687957/colonic-endoscopic-mucosal-resection-in-patients-taking-anticoagulants-is-heparin-bridging-therapy-necessary
#15
Minoru Fujita, Takahisa Murao, Motoyasu Osawa, Shinsuke Hirai, Shinya Fukushima, Syogen Yo, Rui Nakato, Manabu Ishii, Hiroshi Matsumoto, Takahiko Tamaki, Takashi Sakakibara, Akiko Shiotani
AIM: Heparin bridging therapy (HBT) reportedly increases the risk of post-procedural bleeding, and the safety of HBT during endoscopic interventions remains unclear. We evaluated the effects of peri-procedural HBT in patients taking anticoagulants who underwent colonic endoscopic mucosal resection (EMR). METHODS: Patients who underwent colonic EMR while taking a single anticoagulant agent were enrolled in this study. All patients underwent short-term cessation of anticoagulants either without HBT (non-HBT group, prospectively enrolled) or with HBT (HBT group, retrospectively enrolled)...
April 24, 2018: Journal of Digestive Diseases
https://www.readbyqxmd.com/read/29687675/massive-spontaneous-hemothorax-in-patients-with-neurofibromatosis-type-1
#16
Pedro José Gil Vázquez, Andrés Del Amor Arroyo Tristán, Jesús Martínez Baños, Juan Torres Lanzas
Spontaneous hemothorax is an uncommon event that can occur in patients with a history of neurofibromatosis type 1 because of intrathoracic vascular malformations that predispose to aneurysms or bleeding from thoracic tumors. Only 53 cases of this rare association have been reported in the literature since 1975. We described 2 cases: one patient was a 73-year-old man with a right hemothorax secondary to an intercostal neurofibroma; the other was a 35-year-old woman with a left hemothorax secondary to a neurofibroma that compromised the internal mammary artery...
June 2018: Emergencias: Revista de la Sociedad Española de Medicina de Emergencias
https://www.readbyqxmd.com/read/29687263/a-stepwise-embolization-strategy-for-a-bronchial-arterial-aneurysm-proximal-coil-and-distal-glue-with-the-optional-use-of-a-microballoon-occlusion-system
#17
Takahiko Mine, Tomohiro Matsumoto, Toshihiko Hayashi, Kosuke Tomita, Kimihiko Masuda, Masahiro Kawashima, Fumio Sakamaki, Terumitsu Hasebe
PURPOSE: This study aimed to demonstrate a transcatheter embolization strategy for bronchial artery aneurysms (BAAs) using coils for the proximal lesion and glue (n-butyl-2-cyanoacrylate [NBCA]) embolization for the distal lesion with or without the use of a microballoon occlusion catheter. MATERIALS AND METHODS: Five patients with BAAs presenting with hemoptysis were enrolled in this study. A bronchial angiogram indicated a mediastinal BAA near the orifice, accompanied by dilated distal branches with or without intrapulmonary BAA...
April 23, 2018: Cardiovascular and Interventional Radiology
https://www.readbyqxmd.com/read/29687262/portal-vein-embolization-utilizing-n-butyl-cyanoacrylate-for-contralateral-lobe-hypertrophy-prior-to-liver-resection-a-systematic-review-and-meta-analysis
#18
Ethan Wajswol, Tarek Jazmati, Sohail Contractor, Abhishek Kumar
PURPOSE: To evaluate the safety and effectiveness of n-butyl cyanoacrylate (NBCA) for portal vein embolization (PVE) when used to induce contralateral future liver remnant (FLR) hypertrophy in patients undergoing planned hepatic resection for hepatic malignancy. MATERIALS AND METHODS: The PubMed database (including articles indexed by MEDLINE) was searched for articles published from 1970 to 2018 describing patients treated with PVE utilizing NBCA to induce hypertrophy of the FLR prior to contralateral hepatic lobe resection...
April 23, 2018: Cardiovascular and Interventional Radiology
https://www.readbyqxmd.com/read/29687259/successful-embolization-of-bleeding-ileal-varices-with-n-butyl-cyanoacrylate-via-a-recanalized-paraumbilical-vein
#19
Yasuyuki Onishi, Hiroyuki Kimura, Mitsunori Kanagaki, Shojiro Oka, Genki Fukumoto, Tomoaki Otani, Naoko Matsubara, Kazuna Kawabata, Mio Namikawa, Takeshi Matsumura, Toshiyuki Kimura
A 48-year-old woman with alcoholic liver cirrhosis was admitted to our hospital because of hematochezia and severe anemia. She had been hospitalized many times over the past year for hematochezia of unknown etiology. Contrast-enhanced CT demonstrated ileal varices, which were fed by several ileal veins. These feeding veins were selectively embolized with N-butyl cyanoacrylate (NBCA) via a recanalized paraumbilical vein. The paraumbilical vein instead of the portal vein was punctured to decrease the risk of bleeding complications because she had coagulopathy and ascites...
April 23, 2018: Cardiovascular and Interventional Radiology
https://www.readbyqxmd.com/read/29686907/diagnosis-and-thrombolytic-management-of-massive-intraoperative-pulmonary-embolism-guided-by-point-of-care-transthoracic-echocardiography
#20
Roman Dudaryk, Julio Benitez Lopez, Jack Louro
Perioperative pulmonary embolism can go undetected until the sudden onset of cardiopulmonary collapse. Point of care echocardiography in such setting can narrow the differential diagnosis of precipitous instability and facilitate tailored, rather than empiric, therapy in the event of a massive pulmonary embolism. We describe the diagnosis and successful multidisciplinary management of intraoperative massive pulmonary embolism aided by both transthoracic and transesophageal echocardiography. Key aspects regarding the classification and treatment of pulmonary embolism are subsequently reviewed...
2018: Case Reports in Anesthesiology
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