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Cardiopulmonary interactions

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https://www.readbyqxmd.com/read/28431165/corrigendum-to-glial-fibrillary-acidic-protein-plasma-levels-are-correlated-with-degree-of-hypothermia-during-cardiopulmonary-bypass-in-congenital-heart-disease-surgery-interact-cardiovasc-thorac-surg-2017-%C3%A2
#1
Luca Vedovelli, Massimo Padalino, Sara D'Aronco, Giovanni Stellin, Carlo Ori, Virgilio P Carnielli, Manuela Simonato, Paola Cogo
No abstract text is available yet for this article.
April 17, 2017: Interactive Cardiovascular and Thoracic Surgery
https://www.readbyqxmd.com/read/28423997/do-lipid-microemboli-induce-acute-kidney-injury-during-cardiopulmonary-bypass
#2
Richard Issitt, Tim James, Bronagh Walsh, David Voegeli
BACKGROUND: Acute kidney injury (AKI) following cardiopulmonary bypass affects 5% of patients, representing significant postoperative morbidity and mortality. Animal models have shown an increased uptake of lipid microemboli (LME) into the renal vasculature, potentially indicating ischaemic causation. This study tested a new lipid filtration system (RemoweLL) against a conventional system with no lipid-depleting capacity to determine the efficacy of the filtration system and its effects on renal function...
April 1, 2017: Perfusion
https://www.readbyqxmd.com/read/28394978/-salivary-immunoglobulin-a-siga-kinetics-in-young-adults-with-an-average-or-excellent-aerobic-capacity-before-and-after-a-cardiopulmonary-graded-exercise-test
#3
Paulina Yesica Ochoa-Martínez, Javier Arturo Hall-López, Marco Antonio Martínez-García, Raúl Díaz-Molina, Ana María Miranda Botelho Teixeira, José Antonio Moncada-Jiménez
BACKGROUND: Aim: To compare the concentration of secretory immunoglobulin-A (sIgA) in young adults with average or excellent aerobic capacity before and after a cardiopulmonary graded exercise test. METHODS: Participants were nine apparently healthy physically active males (Mean age = 21.3 ± 2.1 yr.), randomly allocated in two groups based on their VO2max: a) average aerobic capacity (AEC, n = 5) or b) excellent aerobic capacity (EAC, n = 4). Participants performed the Bruce protocol to determine their aerobic capacity...
February 2017: Revista Chilena de Infectología: órgano Oficial de la Sociedad Chilena de Infectología
https://www.readbyqxmd.com/read/28392712/evaluation-of-the-cardiotoxicity-and-resuscitation-of-rats-of-a-newly-developed-mixture-of-a-qx-314-analog-and-levobupivacaine
#4
Qi Wang, Qinqin Yin, Jun Yang, Bowen Ke, Linghui Yang, Jin Liu, Wensheng Zhang
OBJECTIVE: This study was designed to evaluate the cardiotoxicity of a QX-314 analog (QX-OH) and a mixture of QX-OH and levobupivacaine (LL-1) and to compare the ability to resuscitate rats after asystole induced by levobupivacaine (Levo-BUP), QX-314, QX-OH, and LL-1. METHODS: First, we used the "up-and-down" method to determine median dose resulting in appearance of cardiotoxicity (CD50C) and asystole (CD50A) of Levo-BUP, QX-314, QX-OH, and LL-1 in rats. Safety index (SI; ratio of CD50C compared with 2-fold median effective dose needed to produce sensory blockade) of the 4 drugs was calculated...
2017: Journal of Pain Research
https://www.readbyqxmd.com/read/28384426/simultaneously-occurring-elevated-metabolic-states-expose-constraints-in-maximal-levels-of-oxygen-consumption-in-the-oviparous-snake-lamprophis-fuliginosus
#5
Alexander Garrett Schavran Jackson, Szu-Yun Leu, James W Hicks
African house snakes (Lamprophis fuliginosus) were used to compare the metabolic increments associated with reproduction, digestion, and activity both individually and when combined simultaneously. Rates of oxygen consumption ([Formula: see text]) and carbon dioxide production ([Formula: see text]) were measured in adult female (nonreproductive and reproductive) and adult male snakes during rest, digestion, activity while fasting, and postprandial activity. We also compared the endurance time (i.e., time to exhaustion) during activity while fasting and postprandial activity in males and females...
May 2017: Physiological and Biochemical Zoology: PBZ
https://www.readbyqxmd.com/read/28376849/effect-of-an-interactive-cardiopulmonary-resuscitation-assist-device-with-an-automated-external-defibrillator-synchronised-with-a-ventilator-on-the-cpr-performance-of-emergency-medical-service-staff-a-randomised-simulation-study
#6
Rainer Nitzschke, Christoph Doehn, Jan F Kersten, Julian Blanz, Tobias J Kalwa, Norman A Scotti, Jens C Kubitz
BACKGROUND: The present study evaluates whether the quality of advanced cardiac life support (ALS) is improved with an interactive prototype assist device. This device consists of an automated external defibrillator linked to a ventilator and provides synchronised visual and acoustic instructions for guidance through the ALS algorithm and assistance for face-mask ventilations. METHODS: We compared the cardiopulmonary resuscitation (CPR) quality of emergency medical system (EMS) staff members using the study device or standard equipment in a mannequin simulation study with a prospective, controlled, randomised cross-over study design...
April 4, 2017: Scandinavian Journal of Trauma, Resuscitation and Emergency Medicine
https://www.readbyqxmd.com/read/28367771/the-effect-of-step-stool-use-and-provider-height-on-cpr-quality-during-pediatric-cardiac-arrest-a-simulation-based-multicentre-study
#7
Adam Cheng, Yiqun Lin, Vinay Nadkarni, Brandi Wan, Jonathan Duff, Linda Brown, Farhan Bhanji, David Kessler, Nancy Tofil, Kent Hecker, Elizabeth A Hunt
OBJECTIVES: We aimed to explore whether a) step stool use is associated with improved cardiopulmonary resuscitation (CPR) quality; b) provider adjusted height is associated with improved CPR quality; and if associations exist, c) determine whether just-in-time (JIT) CPR training and/or CPR visual feedback attenuates the effect of height and/or step stool use on CPR quality. METHODS: We analysed data from a trial of simulated cardiac arrests with three study arms: No intervention; CPR visual feedback; and JIT CPR training...
April 3, 2017: CJEM
https://www.readbyqxmd.com/read/28367686/biomechanical-metabolic-and-cardiopulmonary-responses-of-masters-recreational-runners-during-running-at-different-speeds
#8
Hallie Hahn, Kevin R Vincent, Daniel C Herman, Cong Chen, Laura Ann Zdziarski, Christine Morgan, Heather K Vincent
This study tested interactions between age and running speed on biomechanics, metabolic responses and cardiopulmonary responses. Three-hundred participants ran at preferred and standardized speeds. Age group (younger, masters [≥40 years]) by speed (self-selected 8.8 km/h, 11.2 km/h and 13.6 km/h) interactions were tested on main outcomes of sagittal kinematic, temporal spatial, metabolic and cardiopulmonary parameters. At all speeds, angular displacements of the ankle, pelvis and knee were less in masters than younger runners (Hedges g effect size range = 0...
April 2017: Research in Sports Medicine
https://www.readbyqxmd.com/read/28360123/impact-of-positive-pressure-ventilation-on-mean-systemic-filling-pressure-in-critically-ill-patients-after-death
#9
Xavier Repessé, Cyril Charron, Guillaume Geri, Alix Aubry, Alexis Paternot, Julien Maizel, Michel Slama, Antoine Vieillard-Baron
Introduction Mean systemic filling pressure (Pms) defines the pressure measured in the venous-arterial system when the cardiac output is nil. Its estimation has been proposed in patients with beating hearts by building the venous return curve, using different pairs of right atrial pressure/cardiac output during mechanical ventilation. We raised the hypothesis according to which the Pms is altered by tidal ventilation and PEEP, which would challenge this extrapolation method based on cardiopulmonary interactions...
March 30, 2017: Journal of Applied Physiology
https://www.readbyqxmd.com/read/28272227/effects-of-pulmonary-static-inflation-with-50-xenon-on-oxygen-impairment-during-cardiopulmonary-bypass-for-stanford-type-a-acute-aortic-dissection-a-pilot-study
#10
Mu Jin, Yanwei Yang, Xudong Pan, Jiakai Lu, Zhiquan Zhang, Weiping Cheng
BACKGROUND: The goal of this study was to investigate the effects of pulmonary static inflation with 50% xenon on postoperative oxygen impairment during cardiopulmonary bypass (CPB) for Stanford type A acute aortic dissection (AAD). METHODS: This prospective single-center nonrandomized controlled clinical trial included 100 adult patients undergoing surgery for Stanford type A AAD at an academic hospital in China. Fifty subjects underwent pulmonary static inflation with 50% oxygen from January 2013 to January 2014, and 50 underwent inflation with 50% xenon from January 2014 to December 2014...
March 2017: Medicine (Baltimore)
https://www.readbyqxmd.com/read/28219918/clinical-outcomes-of-remote-ischemic-preconditioning-prior-to-cardiac-surgery-a-meta-analysis-of-randomized-controlled-trials
#11
REVIEW
Brian Pierce, Indra Bole, Vaiibhav Patel, David L Brown
BACKGROUND: Multiple randomized controlled trials of remote ischemic preconditioning (RIPC) prior to cardiac surgery have failed to demonstrate clinical benefit. The aim of this updated meta-analysis was to evaluate the effect of RIPC on outcomes following cardiac surgery. METHODS AND RESULTS: Searches of PubMed, Cochrane, EMBASE, and Web of Science databases were performed for 1970 to December 13, 2015. Randomized controlled trials comparing RIPC with a sham procedure prior to cardiac surgery performed with cardiopulmonary bypass were assessed...
February 20, 2017: Journal of the American Heart Association
https://www.readbyqxmd.com/read/28187046/effect-of-hydroxyethyl-starch-priming-on-the-systemic-inflammatory-response-and-lung-edema-following-cardiopulmonary-bypass-in-a-rat-model
#12
Yutaka Fujii, Takayuki Tanabe, Tsubasa Yamashiro, Mikiyasu Shirai, Yoshiaki Takewa, Eisuke Tatsumi
Cardiopulmonary bypass (CPB) preserves patients' lives during open heart surgery by providing sufficient oxygen delivery and blood supply to vital organs. However, previous studies have suggested that the interaction of hemodilution and vascular hyperpermeability induces tissue edema and an inflammatory response during CPB. In this study, we hypothesized that suppression of the systemic inflammatory response and tissue edema during CPB by a plasma substitute (hydroxyethyl starch: HES).Rats (450-500 g) were divided into a SHAM group (n=5), a Ringer's acetate CPB group (n=7), and an HES CPB group (n=7)...
February 7, 2017: ASAIO Journal: a Peer-reviewed Journal of the American Society for Artificial Internal Organs
https://www.readbyqxmd.com/read/28138311/specific-networks-of-plasma-acute-phase-reactants-are-associated-with-the-severity-of-chronic-obstructive-pulmonary-disease-a-case-control-study
#13
Elena Arellano-Orden, Carmen Calero-Acuña, Juan Antonio Cordero, María Abad-Arranz, Verónica Sánchez-López, Eduardo Márquez-Martín, Francisco Ortega-Ruiz, José Luis López-Campos
Objectives. A detailed understanding of the intricate relationships between different acute phase reactants (APRs) in chronic obstructive pulmonary disease (COPD) can shed new light on its clinical course. In this case-control study, we sought to identify the interaction networks of a number of plasma APRs in COPD, with a special focus on their association with disease severity. Methods. COPD cases and healthy smoking controls (3:1 ratio) were recruited in our outpatient pulmonary clinic. Cardiopulmonary exercise testing was used to rule out the presence of ischemic heart disease...
2017: International Journal of Medical Sciences
https://www.readbyqxmd.com/read/28103120/compassionate-options-for-pediatric-ems-cope-addressing-communication-skills
#14
Aaron W Calhoun, Erica R H Sutton, Anita P Barbee, Beth McClure, Carrie Bohnert, Richard Forest, Peter Taillac, Mary E Fallat
INTRODUCTION: Each year, 16,000 children suffer cardiopulmonary arrest, and in one urban study, 2% of pediatric EMS calls were attributed to pediatric arrests. This indicates a need for enhanced educational options for prehospital providers that address how to communicate to families in these difficult situations. In response, our team developed a cellular phone digital application (app) designed to assist EMS providers in self-debriefing these events, thereby improving their communication skills...
January 19, 2017: Prehospital Emergency Care
https://www.readbyqxmd.com/read/28100967/anesthetic-management-in-radiofrequency-catheter-ablation-of-ventricular-tachycardia
#15
REVIEW
Yi Deng, Payam S Naeini, Mehdi Razavi, Charles D Collard, Daniel A Tolpin, James M Anton
Radiofrequency catheter ablation is increasingly being used to treat patients who have ventricular tachycardia, and anesthesiologists frequently manage their perioperative care. This narrative review is intended to familiarize anesthesiologists with preprocedural, intraprocedural, and postprocedural implications of this ablation. Ventricular tachycardia typically arises from structural heart disease, most often from scar tissue after myocardial infarction. Many patients thus affected will benefit from radiofrequency catheter ablation in the electrophysiology laboratory to ablate the foci of arrhythmogenesis...
December 2016: Texas Heart Institute Journal
https://www.readbyqxmd.com/read/28065471/mutations-in-atp6v1e1-or-atp6v1a-cause-autosomal-recessive-cutis-laxa
#16
Tim Van Damme, Thatjana Gardeitchik, Miski Mohamed, Sergio Guerrero-Castillo, Peter Freisinger, Brecht Guillemyn, Ariana Kariminejad, Daisy Dalloyaux, Sanne van Kraaij, Dirk J Lefeber, Delfien Syx, Wouter Steyaert, Riet De Rycke, Alexander Hoischen, Erik-Jan Kamsteeg, Sunnie Y Wong, Monique van Scherpenzeel, Payman Jamali, Ulrich Brandt, Leo Nijtmans, G Christoph Korenke, Brian H Y Chung, Christopher C Y Mak, Ingrid Hausser, Uwe Kornak, Björn Fischer-Zirnsak, Tim M Strom, Thomas Meitinger, Yasemin Alanay, Gulen E Utine, Peter K C Leung, Siavash Ghaderi-Sohi, Paul Coucke, Sofie Symoens, Anne De Paepe, Christian Thiel, Tobias B Haack, Fransiska Malfait, Eva Morava, Bert Callewaert, Ron A Wevers
Defects of the V-type proton (H(+)) ATPase (V-ATPase) impair acidification and intracellular trafficking of membrane-enclosed compartments, including secretory granules, endosomes, and lysosomes. Whole-exome sequencing in five families affected by mild to severe cutis laxa, dysmorphic facial features, and cardiopulmonary involvement identified biallelic missense mutations in ATP6V1E1 and ATP6V1A, which encode the E1 and A subunits, respectively, of the V1 domain of the heteromultimeric V-ATPase complex. Structural modeling indicated that all substitutions affect critical residues and inter- or intrasubunit interactions...
February 2, 2017: American Journal of Human Genetics
https://www.readbyqxmd.com/read/28032572/postoperative-sepsis-prediction-in-patients-undergoing-major-cancer-surgery
#17
Akshay Sood, Firas Abdollah, Jesse D Sammon, Nivedita Arora, Matthew Weeks, James O Peabody, Mani Menon, Quoc-Dien Trinh
BACKGROUND: Cancer patients are at increased risk for postoperative sepsis. However, studies addressing the issue are lacking. We sought to identify preoperative and intraoperative predictors of 30-d sepsis after major cancer surgery (MCS) and derive a postoperative sepsis risk stratification tool. METHODS: Patients undergoing one of nine MCSs (gastrointestinal, urological, gynecologic, or pulmonary) were identified within the American College of Surgeons National Surgical Quality Improvement Program (2005-2011, n = 69,169)...
March 2017: Journal of Surgical Research
https://www.readbyqxmd.com/read/28029591/cardiorespiratory-interactions-in-paediatrics-it-s-almost-always-the-circulation-stupid
#18
REVIEW
M L Rigby, M Rosenthal
The interaction of the heart and lungs is probably the most important aspect of life and survival. Fortunately, it is not difficult to understand the fundamentals. The purpose of the lungs and their ventilation is to present oxygen to the circulation via the alveoli and to receive carbon dioxide from the circulation and then expel it. The relations of the heart and lungs and the matching of blood flow to the various organs with ventilation and lung perfusion may be disrupted by a variety of congenital or acquired heart malformations...
March 2017: Paediatric Respiratory Reviews
https://www.readbyqxmd.com/read/28018896/factors-influencing-neurodevelopment-after-cardiac-surgery-during-infancy
#19
REVIEW
Hedwig Hubertine Hövels-Gürich
Short- and long-term neurodevelopmental (ND) disabilities with negative impact on psychosocial and academic performance, quality of life, and independence in adulthood are known to be the most common sequelae for surviving children after surgery for congenital heart disease (CHD). This article reviews influences and risk factors for ND impairment. For a long time, the search for independent risk factors was focused on the perioperative period and modalities of cardiopulmonary bypass (CPB). CPB operations to ensure intraoperative vital organ perfusion and oxygen supply with or without circulatory arrest or regional cerebral perfusion bear specific risks...
2016: Frontiers in Pediatrics
https://www.readbyqxmd.com/read/27933732/hypothesis-driven-physical-examination-curriculum
#20
Sharon Allen, Andrew Olson, Jeremiah Menk, James Nixon
BACKGROUND: Medical students traditionally learn physical examination skills as a rote list of manoeuvres. Alternatives like hypothesis-driven physical examination (HDPE) may promote students' understanding of the contribution of physical examination to diagnostic reasoning. We sought to determine whether first-year medical students can effectively learn to perform a physical examination using an HDPE approach, and then tailor the examination to specific clinical scenarios. Medical students traditionally learn physical examination skills as a rote list of manoeuvres CONTEXT: First-year medical students at the University of Minnesota were taught both traditional and HDPE approaches during a required 17-week clinical skills course in their first semester...
December 9, 2016: Clinical Teacher
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