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https://www.readbyqxmd.com/read/29210774/liberal-right-ventricular-assist-device-extracorporeal-membrane-oxygenation-support-for-right-ventricular-failure-after-implantable-left-ventricular-assist-device-placement
#1
Quentin Fischer, Matthias Kirsch
Refractory right ventricular failure (RVF) after implantation of left ventricular assist device (LVAD) is a dramatic complication. The addition of right ventricular assist device (RVAD) may improve RV recovery and lead to improve outcomes. From February 2012 to September 2014, 44 patients received a HeartMate II. These patients were retrospectively compared in two groups according to early liberal implantation of an extracorporeal membrane oxygenation (ECMO) used as a RVAD established between a femoral vein and the pulmonary artery...
November 27, 2017: ASAIO Journal: a Peer-reviewed Journal of the American Society for Artificial Internal Organs
https://www.readbyqxmd.com/read/29196275/global-risk-mapping-for-major-diseases-transmitted-by-aedes-aegypti-and-aedes-albopictus
#2
Samson Leta, Tariku Jibat Beyene, Eva M De Clercq, Kebede Amenu, Crawford Revie
OBJECTIVES: The objective of this study was to map the global risk of the major arboviral diseases transmitted by Aedes aegypti and Ae. albopictus by identifying areas where the diseases are reported either through active transmission or travel related outbreaks, as well as areas where the diseases are not currently reported but are nonetheless suitable for the vector. METHODS: This study extracts data from some of the largest contemporary databases relating to five arboviral diseases (Zika, dengue fever, chikungunya, yellow fever and RVF) and pairs these data with the known distribution of their vectors, Ae...
November 28, 2017: International Journal of Infectious Diseases: IJID
https://www.readbyqxmd.com/read/29172742/the-risk-of-right-ventricular-failure-with-current-continuous-flow-left-ventricular-assist-devices
#3
Antonio Loforte, Francesco Grigioni, Giuseppe Marinelli
Right ventricular failure (RVF) still results as the major cause of morbidity and mortality after left ventricular assist device (LVAD) implantation. Despite overall improved outcomes and lower rates of RVF with the use of the newer, continuous-flow (CF) LVADs over pulsatile-flow devices, and development of clinical prediction scores to facilitate preoperative identification of patients at risk for RVF after implantation, RVF occurs in 13% to 40% of continuous-flow device. Areas covered: In this article, a review has been carried out on the current evidence for preoperative assessment of RV function and RVF risk for appropriate patient selection mainly focusing on current imaging and invasive assessment tools...
November 25, 2017: Expert Review of Medical Devices
https://www.readbyqxmd.com/read/29167748/genetic-stability-of-rift-valley-fever-virus-mp-12-vaccine-during-serial-passages-in-culture-cells
#4
Nandadeva Lokugamage, Tetsuro Ikegami
Rift Valley fever (RVF) is a mosquito-borne zoonotic disease endemic to Africa which affects both ruminants and humans. RVF causes serious damage to the livestock industry and is also a threat to public health. The Rift Valley fever virus has a segmented negative-stranded RNA genome consisting of Large (L)-, Medium (M)-, and Small (S)-segments. The live-attenuated MP-12 vaccine is immunogenic in livestock and humans, and is conditionally licensed for veterinary use in the U.S. The MP-12 strain encodes 23 mutations (nine amino acid substitutions) and is attenuated through a combination of mutations in the L-, M-, and S-segments...
2017: NPJ Vaccines
https://www.readbyqxmd.com/read/29151490/ppar%C3%AE-alleviates-right-ventricular-failure-secondary-to-pulmonary-arterial-hypertension-in-rats
#5
Ying Xu, Qin Gu, Ning Liu, Yan Yan, Xilan Yang, Yingying Hao, Chen Qu
Pulmonary arterial hypertension (PAH) is characterized by pulmonary vascular remodeling leading to right ventricular hypertrophy (RVH) and failure. Peroxisome proliferator-activated receptor γ (PPARγ), a member of nuclear receptors, has been proved to ameliorate PAH. However, its effect on PAH-induced right ventricular failure (RVF) remains unknown. Therefore, we investigated the therapeutic potential of PPARγ in preventing monocrotaline (MCT) -induced RV dysfunction. The PAH model was induced by MCT administration...
November 17, 2017: International Heart Journal
https://www.readbyqxmd.com/read/29145262/management-of-radiation-induced-rectovesical-fistula-in-a-woman-using-ileum-a-case-report-and-review-of-the-literature
#6
Qiqi Mao, Jindan Luo, Jiajie Fang, Hai Jiang
BACKGROUND: Radiation-induced rectovesical fistulas (RVFs) require the most demanding treatment. We presented a rare case of postradiation RVF in a woman repaired with ileum. CASE PRESENTATION: A 49-year-old women was referred to our department for fecaluria and dysuria after radiation for cervical cancer. The voiding cystourethrography demonstrated a large RVF. A segment of ileum was separated into 2 parts for the simultaneous reconstruction of bladder and rectum, which led to a permanently closed fistula...
November 2017: Medicine (Baltimore)
https://www.readbyqxmd.com/read/29141494/influence-of-script-direction-on-word-processing-modes-in-left-and-right-visual-fields
#7
Eric Siéroff, Yael Slama
Word processing in left (LVF) and right (RVF) visual fields may be affected by left hemisphere activation during reading and by script direction. We evaluated the effect of script direction by presenting words in left-to-right (French) and right-to-left (Hebrew) scripts to bilingual French participants. Words of different lengths were presented in the LVF and the RVF in a naming task. Results showed (1) a stronger word length effect in the LVF than in the RVF in French, and no difference of word length effect between LVF and RVF in Hebrew; (2) a first-letter advantage only in the LVF in French and in the RVF in Hebrew, showing an effect of script direction on letter processing; and (3) a stronger advantage of external over internal letters in words presented in the LVF than in the RVF for both languages, showing a left hemisphere influence on letter activation...
November 15, 2017: Laterality
https://www.readbyqxmd.com/read/29126956/effect-of-graduated-compression-stockings-on-venous-lower-limb-hemodynamics-in-healthy-amateur-runners
#8
Oswaldo Teno Castilho Junior, Nei Rodrigues Alves Dezotti, Marcelo Bellini Dalio, Edwaldo Edner Joviliano, Carlos Eli Piccinato
OBJECTIVE: The objective of this study was to analyze the effect of graduated compression stockings (GCS) on venous lower limb hemodynamics in healthy amateur runners. METHODS: Ten runners were evaluated during rest and after a 10-km run without and with knee-high GCS of 20 to 30 mm Hg. Air plethysmography evaluated venous filling index (VFI), ejection fraction, and residual volume fraction (RVF) in both limbs. Capillary lactate level and heart rate were also measured...
November 7, 2017: Journal of Vascular Surgery. Venous and Lymphatic Disorders
https://www.readbyqxmd.com/read/29118127/peripheral-blood-biomarkers-of-disease-outcome-in-a-monkey-model-of-rift-valley-fever-encephalitis
#9
Elizabeth R Wonderlich, Amy L Caroline, Cynthia M McMillen, Aaron W Walters, Douglas S Reed, Simon M Barratt-Boyes, Amy L Hartman
Rift Valley Fever (RVF) is an emerging arboviral disease of livestock and people. Although a mosquito-borne virus, humans are infected through contact with or inhalation of virus-laden particles from contaminated animal carcasses. Some individuals infected with RVF virus (RVFV) develop meningoencephalitis resulting in morbidity and mortality. Little is known about the pathogenic mechanisms that lead to neurologic sequelae, and thus animal models that represent human disease are needed. African green monkeys (AGM) exposed to aerosols containing RVFV develop a reproducibly lethal neurological disease that resembles human illness...
November 8, 2017: Journal of Virology
https://www.readbyqxmd.com/read/29096198/face-inversion-reveals-holistic-processing-of-peripheral-faces
#10
Petra Kovács, Balázs Knakker, Petra Hermann, Gyula Kovács, Zoltán Vidnyánszky
Face perception is accomplished by face-selective neural processes, involving holistic processing that enables highly efficient integration of facial features into a whole-face representation. It has been shown that in face-selective regions of the ventral temporal cortex (VTC), neural resources involved in holistic processing are primarily dedicated to the central portion of the visual field. These findings raise the intriguing possibility that holistic processing might be the privilege of centrally presented faces and could be strongly diminished in the case of peripheral faces...
October 6, 2017: Cortex; a Journal Devoted to the Study of the Nervous System and Behavior
https://www.readbyqxmd.com/read/29076322/double-sided-folded-internal-pudendal-artery-perforator-flap-for-the-repair-of-a-recurrent-rectovaginal-fistula
#11
Sang Gun Lee, Yong Seok Lee, Seung Yong Song, Won Jae Lee, Dong Won Lee
Rectovaginal fistula (RVF) is not common, but represents a challenge to both patients and surgeons. Various surgical techniques have been introduced for repair of RVF, such as local flap rearrangement, muscle transposition, or the use of an artificial mesh. Despite these treatments, recurrence of RVF has been frequently reported. This report presents the case of a 53-year-old woman who suffered from a recurrent RVF that first developed 32 years ago, 2 years after a vaginal delivery with an episiotomy. A satisfactory good result was achieved following a method using a double-sided folded internal pudendal artery perforator flap...
October 27, 2017: Archives of Plastic Surgery
https://www.readbyqxmd.com/read/29073547/rectovaginal-fistula-after-low-anterior-resection-for-rectal-cancer-healed-by-nonoperative-treatment
#12
Shigenobu Emoto, Hiroaki Nozawa, Satomi Yoneyama, Koji Murono, Manabu Kaneko, Kazuhito Sasaki, Kensuke Otani, Takeshi Nishikawa, Toshiaki Tanaka, Keisuke Hata, Tomomichi Kiyomatsu, Kazushige Kawai, Kanako Omata, Tatsuki Noguchi, Koichi Masuda, Hiroki Sakata, Yusuke Tajima, Akio Hidemura, Hiroyuki Suzuki, Masahiro Ishimaru, Toshiaki Watanabe
BACKGROUND: Rectovaginal fistula (RVF) is a serious complication after colorectal anastomosis using a double-stapling technique. RVF following this procedure has been considered to be refractory to conservative treatment. CASE PRESENTATION: A 75-year-old woman who underwent laparoscopy-assisted low anterior resection for early rectal cancer developed RVF on the 12th postoperative day. Conservative treatment was chosen and was successful. She was discharged from the hospital after 3 weeks with a normal oral diet...
October 18, 2017: International Journal of Surgery Case Reports
https://www.readbyqxmd.com/read/29069855/rectovaginal-fistula-after-low-anterior-resection-in-chinese-patients-with-colorectal-cancer
#13
Hongtu Zheng, Tianan Guo, Yuchen Wu, Cong Li, Sanjun Cai, Fangqi Liu, Ye Xu
Rectovaginal fistula is a postoperative complication of low anterior resection. We investigated the incidence of rectovaginal fistula (RVF) after low anterior resection, its risk factors and its optimal treatment. We analyzed data from 1,493 female patients who underwent low anterior resection for colorectal cancer between January 2006 and March 2016. We calculated the incidence of RVF and performed univariate and multivariate logistic regression analyses to identify risk factors. Twenty-four patients experienced RVF, giving an incidence of 1...
September 22, 2017: Oncotarget
https://www.readbyqxmd.com/read/29061350/attenuation-and-protective-efficacy-of-rift-valley-fever-phlebovirus-rmp12-gm50-strain
#14
Hoai J Ly, Shoko Nishiyama, Nandadeva Lokugamage, Jennifer K Smith, Lihong Zhang, David Perez, Terry L Juelich, Alexander N Freiberg, Tetsuro Ikegami
Rift Valley fever (RVF) is a mosquito-borne zoonotic disease endemic to Africa and the Arabian Peninsula that affects sheep, cattle, goats, camels, and humans. Effective vaccination of susceptible ruminants is important for the prevention of RVF outbreaks. Live-attenuated RVF vaccines are in general highly immunogenic in ruminants, whereas residual virulence might be a concern for vulnerable populations. It is also important for live-attenuated strains to encode unique genetic markers for the differentiation from wild-type RVFV strains...
December 4, 2017: Vaccine
https://www.readbyqxmd.com/read/29032225/right-ventricular-dysfunction-in-acute-myocardial-infarction-complicated-by-cardiogenic-shock-a-hemodynamic-analysis-of-the-should-we-emergently-revascularize-occluded-coronaries-for-cardiogenic-shock-shock-trial-and-registry
#15
Anuradha Lala, Yu Guo, Jinfeng Xu, Michele Esposito, Kevin Morine, Richard Karas, Stuart D Katz, Judith S Hochman, Daniel Burkhoff, Navin K Kapur
BACKGROUND: The prevalence and significance of right ventricular dysfunction (RVD) in patients with cardiogenic shock due to acute myocardial infarction (AMI-CS) has not been well characterized. We hypothesized that RVD is common in AMI-CS and associated with worse clinical outcomes. METHODS AND RESULTS: We retrospectively analyzed patients with available hemodynamics enrolled in the SHould we emergently revascularize Occluded coronaries for Cardiogenic shocK (SHOCK) Trial (n=139) and Registry (n=258) to identify RVD in AMI-CS...
October 11, 2017: Journal of Cardiac Failure
https://www.readbyqxmd.com/read/28985319/rift-valley-fever-does-wildlife-play-a-role
#16
Melinda K Rostal, Janice E Liang, David Zimmermann, Roy Bengis, Janusz Paweska, William B Karesh
Rift Valley fever (RVF) virus (RVFV) is an emerging vector-borne pathogen that causes sporadic epizootics and epidemics with multi-year, apparently quiescent, inter-epidemic periods. The epidemiology and ecology of the virus during these inter-epidemic periods is poorly understood. There is evidence for low-level circulation of the virus in livestock and wild ruminants; however, as of yet there is no evidence to identify a specific mammalian reservoir host. Using a systematic approach, this review synthesizes results from serosurveys, attempts at viral detection, and experimental infection of wildlife...
August 31, 2017: ILAR Journal
https://www.readbyqxmd.com/read/28957536/role-of-cardiac-inflammation-in-right-ventricular-failure
#17
Xiao-Qing Sun, Antonio Abbate, Harm-Jan Bogaard
Right ventricular failure (RVF) is the main determinant of mortality in patients with pulmonary arterial hypertension (PAH). Although the exact pathophysiology underlying RVF remains unclear, inflammation may play an important role, as it does in left heart failure. Perivascular pulmonary artery and systemic inflammation is relatively well studied and known to contribute to the initiation and maintenance of the pulmonary vascular insult in PAH. However, less attention has been paid to the role of cardiac inflammation in RVF and PAH...
October 1, 2017: Cardiovascular Research
https://www.readbyqxmd.com/read/28926632/risk-analysis-of-inter-species-reassortment-through-a-rift-valley-fever-phlebovirus-mp-12-vaccine-strain
#18
Hoai J Ly, Nandadeva Lokugamage, Shoko Nishiyama, Tetsuro Ikegami
Rift Valley fever (RVF) is a mosquito-borne zoonotic disease endemic to Africa and the Arabian Peninsula. The causative agent, Rift Valley fever phlebovirus (RVFV), belongs to the genus Phlebovirus in the family Phenuiviridae and causes high rates of abortions in ruminants, and hemorrhagic fever, encephalitis, or blindness in humans. Viral maintenance by mosquito vectors has led to sporadic RVF outbreaks in ruminants and humans in endemic countries, and effective vaccination of animals and humans may minimize the impact of this disease...
2017: PloS One
https://www.readbyqxmd.com/read/28925970/current-status-of-rift-valley-fever-vaccine-development
#19
REVIEW
Bonto Faburay, Angelle Desiree LaBeaud, D Scott McVey, William C Wilson, Juergen A Richt
Rift Valley Fever (RVF) is a mosquito-borne zoonotic disease that presents a substantial threat to human and public health. It is caused by Rift Valley fever phlebovirus (RVFV), which belongs to the genus Phlebovirus and the family Phenuiviridae within the order Bunyavirales. The wide distribution of competent vectors in non-endemic areas coupled with global climate change poses a significant threat of the transboundary spread of RVFV. In the last decade, an improved understanding of the molecular biology of RVFV has facilitated significant progress in the development of novel vaccines, including DIVA (differentiating infected from vaccinated animals) vaccines...
September 19, 2017: Vaccines
https://www.readbyqxmd.com/read/28888700/surgical-repair-of-rectovaginal-fistula-using-the-modified-martius-procedure-a-step-by-step-guide
#20
Dan Wang, Juan Chen, Lan Zhu, Mingchen Sang, Fan Yu, Qing Zhou
STUDY OBJECTIVE: to demonstrate the surgical repair of rectovaginal fistula by the modified Martius procedure. DESIGN: step by step presentation of the procedure using video. SETTING: Rectovaginal fistula (RVF) is abnormal epithelialized connections between the vagina and rectum. Causes of rectovaginal fistula include obstetrical trauma, Crohn disease, pelvic irradiation and postsurgical complications. Many surgical interventions have been developed, from laparoscopic technique to muscle transposition and even rectal resection...
September 6, 2017: Journal of Minimally Invasive Gynecology
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