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https://www.readbyqxmd.com/read/28812466/florid-intussusceptive-like-microvascular-dysangiogenesis-in-a-preterm-lung
#1
Monique E De Paepe, Merline Kocheekkaran V Benny, Lauren Priolo, Francois I Luks, Svetlana Shapiro
The cellular mechanisms underlying the microvascular dysangiogenesis of bronchopulmonary dysplasia (chronic lung disease of the newborn) remain largely undetermined. We report unusual pulmonary vascular findings in a 27-week-gestation male newborn who died on the second day of life from intractable respiratory failure, following a pregnancy complicated by prolonged membrane rupture and persistent severe oligohydramnios. As expected, postmortem examination revealed pulmonary hypoplasia (lung/body weight ratio: 2...
September 2017: Pediatric and Developmental Pathology
https://www.readbyqxmd.com/read/28805973/experimental-and-clinical-evidence-of-differential-effects-of-magnesium-sulfate-on-neuroprotection-and-angiogenesis-in-the-fetal-brain
#2
Matthieu Lecuyer, Marina Rubio, Clément Chollat, Maryline Lecointre, Sylvie Jégou, Philippe Leroux, Carine Cleren, Isabelle Leroux-Nicollet, Loic Marpeau, Denis Vivien, Stéphane Marret, Bruno J Gonzalez
Clinical studies showed beneficial effects of magnesium sulfate regarding the risk of cerebral palsy. However, regimen protocols fluctuate worldwide and risks of adverse effects impacting the vascular system have been reported for human neonates, keeping open the question of the optimal dosing. Using clinically relevant concentrations and doses of magnesium sulfate, experiments consisted of characterizing, respectively, ex vivo and in vivo, the effects of magnesium sulfate on the nervous and vascular systems of mouse neonates by targeting neuroprotection, angiogenesis, and hemodynamic factors and in measuring, in human fetuses, the impact of a 4-g neuroprotective loading dose of magnesium sulfate on brain hemodynamic parameters...
August 2017: Pharmacology Research & Perspectives
https://www.readbyqxmd.com/read/28804232/acute-beneficial-effects-of-muscular-counterpulsation-in-patients-with-coronary-heart-diseases
#3
Larry V Lapanashvili, Michael D Alshibaya, Julia Veselova, Leo A Bockeria
This prospective pilot study was designed to investigate the acute hemodynamic effects and clinical applicability of muscular counterpulsation (MCP), a one-shot procedure for biomechanical circulatory support. The study included 17 consecutive patients with coronary artery disease (CAD) and impaired ejection fraction (EF ≤45%) who underwent elective coronary artery bypass grafting (CABG). Patients were divided into control ( n  = 7) and treatment ( n  = 10) groups. MCP was applied through adhesive skin electrodes to the thighs and calves with a battery-powered, portable, ECG-triggered device for 15 minutes prior to general anesthesia...
September 2017: International Journal of Angiology: Official Publication of the International College of Angiology, Inc
https://www.readbyqxmd.com/read/28802997/prophylactic-use-of-an-intra-aortic-balloon-pump-in-a-high-risk-patient-with-peripartum-cardiomyopathy-requiring-cesarean-delivery
#4
R S Samalavicius, L Puodziukaite, I Radaviciute, I Norkiene, K Urbonas, I Misiuriene, V Janusauskas, A Zorinas, K Rucinskas, P Serpytis
The use of intra-aortic balloon counter-pulsation for circulatory support in pregnant women with cardiac failure is limited to several case reports. Few publications have addressed the use of intra-aortic balloon counter-pulsation during delivery. We report a case using prophylactic intra-aortic counter-pulsation during the management of a cesarean delivery in a patient with peripartum cardiomyopathy. A 28-year-old primigravid female at 37weeks of gestation was admitted with signs of worsening heart failure, and transthoracic echocardiography revealed a decreased left ventricular ejection fraction of 25%...
July 14, 2017: International Journal of Obstetric Anesthesia
https://www.readbyqxmd.com/read/28802543/outcomes-and-predictors-of-failure-of-non-invasive-ventilation-in-patients-with-community-acquired-pneumonia-in-the-emergency-department
#5
Amjad Al-Rajhi, Anwar Murad, P Z Li, Jason Shahin
OBJECTIVE: We set out to describe the use and analyze the predictors of non-invasive ventilation failure in patients with community-acquired pneumonia who receive non-invasive ventilation as first line ventilatory therapy in the emergency department. METHODS: A retrospective cohort study was conducted among consecutive patients with community acquired pneumonia requiring ventilator support presenting to two tertiary care university-affiliated emergency departments...
August 7, 2017: American Journal of Emergency Medicine
https://www.readbyqxmd.com/read/28801937/in-situ-split-liver-splitting-under-extra-corporeal-membrane-oxygenation-in-brain-dead-donor
#6
Assalino Michela, Pietro Majno, Christian Toso, Thierry Berney, Raphaël Giraud, Philipp Dutkowski, Axel Andres, Barbara Wildhaber, Laure Elkrief
Hemodynamic instability is generally considered as a contraindication to liver splitting, in particular when using an in-situ technique. We describe the cases of two young donors with brain death in whom refractory cardiac arrest and hemodynamic instability were supported by veno-arterial extracorporeal membrane oxygenation (VA-ECMO), allowing uneventful in situ splitting. Two adult and two pediatric liver recipients were successfully transplanted with immediate graft function. Favorable outcomes were also observed for the other transplanted organs, including one heart, two lungs and four kidneys...
August 12, 2017: American Journal of Transplantation
https://www.readbyqxmd.com/read/28800178/outcomes-of-catheter-ablation-of-ventricular-tachycardia-with-mechanical-hemodynamic-support-an-analysis-of-the-medicare-database
#7
Arash Aryana, André d'Avila, Christina L Cool, Marc A Miller, Fermin C Garcia, Gregory E Supple, Srinivas R Dukkipati, Dhanunjaya Lakkireddy, T Jared Bunch, Mark R Bowers, Padraig Gearoid O'Neill, Vivek Y Reddy, Francis E Marchlinski
INTRODUCTION: There is a paucity of data in favor of mechanical support during catheter ablation of ventricular tachycardia (VT). This study investigated the outcomes of VT ablation associated with mechanical support using percutaneous ventricular assist device (PVAD) versus intra-aortic balloon pump (IABP). METHODS AND RESULTS: We retrospectively examined the outcomes of patients who underwent VT ablation associated with PVAD versus IABP from 2010-2013, captured by the Medicare Inpatient Standard Analytic File database...
August 11, 2017: Journal of Cardiovascular Electrophysiology
https://www.readbyqxmd.com/read/28795676/-design-and-application-of-medical-electric-leg-raising-machine
#8
Jintang Liang, Jinyuan Chen, Zixian Zhao, Jinfeng Lin, Juanhong Li, Jingliang Zhong
Passive leg raising is widely used in clinic, but it lacks of specialized mechanical raise equipment. It requires medical staff to raise leg by hand or requires a multi-functional bed to raise leg, which takes time and effort. Therefore we have developed a new medical electric leg-raising machine. The equipment has the following characteristics: simple structure, stable performance, easy operation, fast and effective, safe and comfortable. The height range of the lifter is 50-120 cm, the range of the angle of raising leg is 10degree angle-80degree angle, the maximum supporting weight is 40 kg...
August 2017: Zhonghua Wei Zhong Bing Ji Jiu Yi Xue
https://www.readbyqxmd.com/read/28793822/dose-response-head-to-head-comparison-of-inodilators-dobutamine-milrinone-and-levosimendan-in-chronic-experimental-pulmonary-hypertension
#9
Marta Tavares-Silva, Mohamed Alaa, Sara Leite, José Oliveira-Pinto, Lucas Lopes, Adelino F Leite-Moreira, André P Lourenço
The choice of inodilator drug in the acute management of patients with pulmonary hypertension (PH) having right ventricular (RV) failure remains unsettled and challenging. Comprehensive experimental evaluations may provide further insight and fundamental translational research clues to support inodilator selection and clinical trial design. Our aim was to compare acute dose-response hemodynamic effects of inodilators dobutamine (DOB), milrinone (MIL), and levosimendan (LEV) in chronic experimental PH. Seven-week-old male Wistar rats were randomly injected with 60 mg·kg(-1) monocrotaline (MCT) or vehicle (Ctrl, n = 7) and underwent systemic and pulmonary artery (PA) pressure and RV pressure-volume (PV) hemodynamic evaluation under halogenate anesthesia 24 to 30 days after injection...
September 2017: Journal of Cardiovascular Pharmacology and Therapeutics
https://www.readbyqxmd.com/read/28792509/regional-citrate-anticoagulation-for-continuous-renal-replacement-therapy-in-pediatric-patients-with-liver-failure
#10
Keila Rodriguez, Poyyapakkam R Srivaths, Leyat Tal, Mary N Watson, Alyssa A Riley, Ryan W Himes, Moreshwar S Desai, Michael C Braun, Ayse Akcan Arikan
Pediatric liver failure patients frequently develop multiple organ failure and require continuous renal replacement therapy (CRRT) as part of supportive therapy in the pediatric intensive care unit. While many centers employ no anticoagulation for fear of bleeding complications, balanced coagulation disturbance predisposes these patients to clotting as well as bleeding, making maintenance of longer circuit life to deliver adequate dialysis clearance challenging. Regional citrate anticoagulation (RCA) is an attractive option as it avoids systemic anticoagulation, but since citrate metabolism is impaired in liver failure, concerns about toxicity has limited its use...
2017: PloS One
https://www.readbyqxmd.com/read/28790293/-critical-care-managements-after-lung-transplantation
#11
Masaki Anraku
Lung transplantation is a viable treatment option for patients with end-stage lung diseases such as interstitial pneumonia/pulmonary fibrosis, emphysema, pulmonary hypertension, and so on. Collecting available clinical, physiological, serological, and surgical information of both donor and recipient is vital when planning relevant postoperative managements. The goal of the managements is to keep the transplanted lung (s) functional while preventing/treating infection, rejection, and ischemiareperfusion lung injury...
July 2017: Kyobu Geka. the Japanese Journal of Thoracic Surgery
https://www.readbyqxmd.com/read/28779782/future-research-directions-to-improve-fistula-maturation-and-reduce-access-failure
#12
REVIEW
Haidi Hu, Sandeep Patel, Jesse J Hanisch, Jeans M Santana, Takuya Hashimoto, Hualong Bai, Tambudzai Kudze, Trenton R Foster, Jianming Guo, Bogdan Yatsula, Janice Tsui, Alan Dardik
With the increasing prevalence of end-stage renal disease, there is a growing need for hemodialysis. Arteriovenous fistulae (AVF) are the preferred type of vascular access for hemodialysis, but maturation and failure continue to present significant barriers to successful fistula use. AVF maturation integrates outward remodeling with vessel wall thickening in response to drastic hemodynamic changes in the setting of uremia, systemic inflammation, oxidative stress, and pre-existent vascular pathology. AVF can fail due to both failure to mature adequately to support hemodialysis and development of neointimal hyperplasia that narrows the AVF lumen, typically near the fistula anastomosis...
December 2016: Seminars in Vascular Surgery
https://www.readbyqxmd.com/read/28777391/design-and-numerical-evaluation-of-an-axial-partial-assist-blood-pump-for-chinese-and-other-heart-failure-patients
#13
Guang-Mao Liu, Dong-Hai Jin, Jian-Ye Zhou, Xi-Hang Jiang, Han-Song Sun, Yan Zhang, Hai-Bo Chen, Sheng-Shou Hu, Xing-Min Gui
A fully implantable axial left ventricular assist device LAP31 was developed for Chinese or other heart failure patients who need partial support. Based on the 5-Lpm total cardiac blood output of Chinese without heart failure disease, the design point of LAP31 was set to a flow rate of 3 Lpm with 100-mmHg pressure head. To achieve the required pressure head and good hemolytic performance, a structure that includes a spindly rotor hub and a diffuser with splitter and cantilevered main blades was developed. Computational fluid dynamics (CFD) was used to analyze the hydraulic and hemodynamic performance of LAP31...
August 2, 2017: International Journal of Artificial Organs
https://www.readbyqxmd.com/read/28777197/elabela-improves-cardio-renal-outcome-in-fatal-experimental-septic-shock
#14
David Coquerel, Frédéric Chagnon, Xavier Sainsily, Lauralyne Dumont, Alexandre Murza, Jérôme Côté, Robert Dumaine, Philippe Sarret, Éric Marsault, Dany Salvail, Mannix Auger-Messier, Olivier Lesur
OBJECTIVES: Apelin-13 was recently proposed as an alternative to the recommended β-adrenergic drugs for supporting endotoxin-induced myocardial dysfunction. Since Apelin-13 signals through its receptor (Apelin peptide jejunum) to exert singular inotropic/vasotropic actions and to optimize body fluid balance, this candidate pathway might benefit septic shock management. Whether the newly discovered ELABELA (ELA), a second endogenous ligand of the Apelin peptide jejunum receptor highly expressed in the kidney, further improves cardio-renal impairment remains unknown...
August 2, 2017: Critical Care Medicine
https://www.readbyqxmd.com/read/28777134/retrospective-analysis-of-transcranial-doppler-patterns-in-veno-arterial-extracorporeal-membrane-oxygenation-patients-feasibility-of-cerebral-circulatory-arrest-diagnosis
#15
Marinella Marinoni, Giovanni Cianchi, Sara Trapani, Maria L Migliaccio, Manuela Bonizzoli, Letizia Gucci, Antonella Cramaro, Andrea Gallerini, Fabio Picciafuochi, Serafina Valente, Adriano Peris
Transcranial Doppler (TCD) is able to detect cerebral hemodynamic changes in real-time. Impairment of cerebral blood flow during veno-arterial (VA) extracorporeal membrane oxygenation (ECMO) treatment is referred to in the literature. Several cerebrovascular complications can affect VA ECMO patients, eventually leading to brain death (BD). Transcranial Doppler is a worldwide accepted technique for cerebral circulatory arrest (CCA) diagnosis for BD confirmation, and in Italy, it is mandatory in certain clinical conditions...
August 1, 2017: ASAIO Journal: a Peer-reviewed Journal of the American Society for Artificial Internal Organs
https://www.readbyqxmd.com/read/28772351/the-influence-of-functional-warm-ischemia-time-on-dcd-liver-transplant-recipients-outcomes
#16
Jessica C Coffey, Kerollos N Wanis, Diethard Monbaliu, Nicholas Gilbo, Markus Selzner, Neeta Vachharajani, Mark A Levstik, Max Marquez, Mb Majella Doyle, Jacques Pirenne, David Grant, Julie K Heimbach, William Chapman, Kelly Vogt, Roberto Hernandez-Alejandro
BACKGROUND: Duration of functional warm ischemia (f-WIT) is thought to have a causal effect on outcomes in controlled donation after circulatory death (DCD) liver transplantation (LT). METHODS: A retrospective cohort study was conducted at five centers. Data were extracted on donor and recipient characteristics, with attention to parameters recorded during withdrawal of life support to in-situ cold perfusion. F-WIT was the time elapsed from any of the hemodynamic and oxygenation parameters to the start of in-situ cold perfusion...
August 3, 2017: Clinical Transplantation
https://www.readbyqxmd.com/read/28769781/enhancing-classification-performance-of-functional-near-infrared-spectroscopy-brain-computer-interface-using-adaptive-estimation-of-general-linear-model-coefficients
#17
Nauman Khalid Qureshi, Noman Naseer, Farzan Majeed Noori, Hammad Nazeer, Rayyan Azam Khan, Sajid Saleem
In this paper, a novel methodology for enhanced classification of functional near-infrared spectroscopy (fNIRS) signals utilizable in a two-class [motor imagery (MI) and rest; mental rotation (MR) and rest] brain-computer interface (BCI) is presented. First, fNIRS signals corresponding to MI and MR are acquired from the motor and prefrontal cortex, respectively, afterward, filtered to remove physiological noises. Then, the signals are modeled using the general linear model, the coefficients of which are adaptively estimated using the least squares technique...
2017: Frontiers in Neurorobotics
https://www.readbyqxmd.com/read/28763463/recellularization-of-a-novel-off-the-shelf-valve-following-xenogenic-implantation-into-the-right-ventricular-outflow-tract
#18
Ryan S Hennessy, Jason L Go, Rebecca R Hennessy, Brandon J Tefft, Soumen Jana, Nicholas J Stoyles, Mohammed A Al-Hijji, Jeremy J Thaden, Sorin V Pislaru, Robert D Simari, John M Stulak, Melissa D Young, Amir Lerman
Current research on valvular heart repair has focused on tissue-engineered heart valves (TEHV) because of its potential to grow similarly to native heart valves. Decellularized xenografts are a promising solution; however, host recellularization remains challenging. In this study, decellularized porcine aortic valves were implanted into the right ventricular outflow tract (RVOT) of sheep to investigate recellularization potential. Porcine aortic valves, decellularized with sodium dodecyl sulfate (SDS), were sterilized by supercritical carbon dioxide (scCO2) and implanted into the RVOT of five juvenile polypay sheep for 5 months (n = 5)...
2017: PloS One
https://www.readbyqxmd.com/read/28762228/-a-systematic-review-and-meta-analysis-of-the-pros-and-cons-of-consuming-liquids-preoperatively
#19
Fang-Tzu Lin, Tsai-Rung Lin, Chia-Wei Liao, Shu-Hui Chen
BACKGROUND: Preoperative anesthesia long time fasting, may increase patient hemodynamic instability during surgery and may affect the patient's post-surgery electrolyte balance. No meta-analysis has been conducted to explore the effects of preoperative liquid intake amount on gastric fluid PH, gastric fluid volume, surgery inhalation of pulmonary complications, and patient self-perceptions quality of care systematic review and meta-analysis of the literature. PURPOSE: To assess the pros and cons of preoperative liquid intake using a systematic review of the literature...
August 2017: Hu Li za Zhi the Journal of Nursing
https://www.readbyqxmd.com/read/28760462/histone-modification-is-correlated-with-reverse-lv-remodeling-in-nonischemic-dilated-cardiomyopathy
#20
Emiko Ito, Shigeru Miyagawa, Satsuki Fukushima, Yasushi Yoshikawa, Shunsuke Saito, Tetsuya Saito, Akima Harada, Maki Takeda, Noriyuki Kashiyama, Yuki Nakamura, Motoko Shiozaki, Koichi Toda, Yoshiki Sawa
BACKGROUND: Although implantation of a left ventricular assist device (LVAD) induces reverse remodeling of the left ventricle in end-stage nonischemic dilated cardiomyopathy (DCM), the underlying mechanism is not fully understood. It has been shown that epigenetic modification, such as methylation or acetylation of the histone, is one of the most important upstream signals in cardiac failure. This study hypothesized that histone profiles may be modified by LVAD implantation for end-stage nonischemic DCM, in association with reverse left ventricular remodeling...
July 28, 2017: Annals of Thoracic Surgery
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