keyword
MENU ▼
Read by QxMD icon Read
search

Extracorporeal circulation

keyword
https://www.readbyqxmd.com/read/29682144/periodic-and-simultaneous-quantification-of-blood-viscosity-and-red-blood-cell-aggregation-using-a-microfluidic-platform-under-in-vitro-closed-loop-circulation
#1
Yang Jun Kang
To evaluate variations of blood circulating in closed loops, hemorheological properties including blood viscosity and red blood cells (RBCs) are quantitatively measured with independent in-vitro instruments after collecting blood from a closed loop. But, most previous methods require periodic blood collections which induce several problems such as geometric differences between the fluidic channel and the in-vitro method, hemodilution, storage time, and unspecific blood flow rates. To resolve these issues, in this study, blood viscosity and RBC aggregation of blood circulating within a closed loop are measured with a microfluidic platform periodically and simultaneously...
March 2018: Biomicrofluidics
https://www.readbyqxmd.com/read/29667097/an-elevated-respiratory-quotient-predicts-complications-after-cardiac-surgery-under-extracorporeal-circulation-an-observational-pilot-study
#2
J Piot, A Hébrard, M Durand, J F Payen, P Albaladejo
Following cardiac surgery, hyperlactatemia due to anaerobic metabolism is associated with an increase in both morbidity and mortality. We previously found that an elevated respiratory quotient (RQ) predicts anaerobic metabolism. In the present study we aimed to demonstrate that it is also associated with poor outcome following cardiac surgery. This single institution, prospective, observational study includes all those patients that were consecutively admitted to the intensive care unit (ICU) after cardiac surgery with cardiopulmonary bypass, that had also been monitored using pulmonary artery catheter...
April 17, 2018: Journal of Clinical Monitoring and Computing
https://www.readbyqxmd.com/read/29659843/a-computed-tomography-based-planning-tool-for-predicting-difficulty-of-minimally-invasive-aortic-valve-replacement
#3
Mustafa A Elattar, Abdullah Kaya, Nils R Planken, Jan Baan, Ed T Vanbavel, Bas A J M de Mol, Henk A Marquering
OBJECTIVES: Minimally invasive aortic valve replacement has proven its value over the last decade by its significant advancement and reduction in mortality, morbidity and admission time. However, minimally invasive aortic valve replacement is associated with some on-site difficulties such as limited aortic annulus exposure. Currently, computed tomography scans are used to evaluate the anatomical relationship among the intercostal spaces, ascending aorta and aortic valve prior to surgery...
April 12, 2018: Interactive Cardiovascular and Thoracic Surgery
https://www.readbyqxmd.com/read/29644151/trans-cranial-doppler-as-an-ancillary-study-supporting-irreversible-brain-injury-in-a-post-cardiac-arrest-patient-on-extracorporeal-membrane-oxygenation
#4
Naresh Mullaguri, Aarti Sarwal, Nakul Katyal, Premkumar Nattanamai, Pravin George, Christopher R Newey
Obtaining neuroimaging in patients on cardiopulmonary support devices such as extracorporeal membrane oxygenation (ECMO) can be challenging, given the complexities in monitoring, instrumentation, and associated hemodynamic lability. Transcranial Doppler (TCD) is used as an ancillary test for the assessment of cerebral circulatory arrest, but its use in non-pulsatile blood flow in venoarterial (VA) ECMO is not well described. We report the use of TCD in a patient on VA ECMO post-cardiac arrest for evaluation of death by neurological criteria...
February 6, 2018: Curēus
https://www.readbyqxmd.com/read/29628594/an-unusual-case-of-a-parturient-with-uncorrected-pentalogy-of-fallot-presenting-for-elective-cesarean-section-delivery-of-twins
#5
Ying Ci Ho, Sek Koon Boey, Abey Matthew Varughese Mathews, Hooi Geok See, Nian Chih Hwang
We present a 31-year-old primigravida with uncorrected pentalogy of Fallot, pregnant with monochorionic-diamniotic twins, undergoing elective lower segment cesarean section at 36 weeks gestation. Preoperative workup included a transthoracic echocardiogram which revealed a large ventricular septal defect of 1.8 cm with bidirectional shunting, a moderate size atrial septal defect of 1.8 cm with predominant left-to-right shunting, an overriding aorta, moderate right ventricular hypertrophy, and severe pulmonary valve stenosis...
January 2018: Anesthesia, Essays and Researches
https://www.readbyqxmd.com/read/29617804/feasibility-of-transcatheter-aortic-valve-implantation-in-patients-with-coronary-heights-%C3%A2-7-mm-insights-from-the-transcatheter-aortic-valve-implantation-karlsruhe-tavik-registry
#6
Lars O Conzelmann, Alexander Würth, Gerhard Schymik, Holger Schröfel, Tonic Anusic, Stefanie Temme, Panagiotis Tzamalis, Jan Gerhardus, Chirojit Mukherjee, Bernd-Dieter Gonska, Claus Schmitt, Uwe Mehlhorn
OBJECTIVES: Transcatheter aortic valve implantation (TAVI) in patients with low coronary heights is generally denied but is not impossible. Information about these high-risk procedures is sparse. METHODS: Since May 2008, data of more than 3000 patients who had TAVI were prospectively collected in the institutional TAVI Karlsruhe registry. Characteristics, peri- and postoperative outcome of patients with low coronary heights of ≤7 mm were analysed according to the Valve Academic Research Consortium-2...
April 2, 2018: European Journal of Cardio-thoracic Surgery
https://www.readbyqxmd.com/read/29617504/hemolysis-and-inflammatory-response-to-extracorporeal-circulation-during-on-pump-cabg-comparison-between-roller-and-centrifugal-pump-systems
#7
Andréia Cristina Passaroni, Marcello Laneza Felicio, Nelson Leonardo Kerdahi Leite de Campos, Marcos Augusto de Moraes Silva, Winston Bonida Yoshida
OBJECTIVE: To compare the perioperative incidence rates of hemolysis and inflammatory response in patients undergoing coronary artery bypass grafting with the two main types of cardiopulmonary bypass, centrifugal and roller pumps, and establish correlations among hemolytic and inflammatory changes. METHODS: This was a prospective, randomized trial of 60 patients assigned to either roller pump (G1, n=30) or centrifugal pump (G2, n=30) bypass. Markers of hemolysis (serum haptoglobin, lactate dehydrogenase [LDH]) and inflammation (interleukin [IL]1ß, IL-6, and TNF-α) were measured and analyzed...
January 2018: Brazilian Journal of Cardiovascular Surgery
https://www.readbyqxmd.com/read/29617503/postoperative-bleeding-following-preoperative-clopidogrel-administration-in-patients-with-haemoglobin-level-above-110-g-l-undergoing-urgent-cabg
#8
Sasa Milan Kacar, Aleksandar Mikic, Mirjana Božidar Kačar
INTRODUCTION: Patients with acute coronary syndrome usually receive dual antiplatelet therapy (DAPT) (usually clopidogrel + aspirin) prior to coronary catheterization, and approximately 10% of these patients require coronary artery bypass grafting (CABG). DAPT has favorable effects on prevention of thrombus formation, but it can have deleterious effects on surgical hemostasis. Anaemia, if present, gives additional risk to such patients. The aim of this study was to examine if DAPT affects postoperative bleeding in patients with haemoglobin levels above 110 g/L, who underwent urgent or emergent CABG, less than five days after stopping DAPT therapy...
January 2018: Brazilian Journal of Cardiovascular Surgery
https://www.readbyqxmd.com/read/29615357/use-of-extracorporeal-bypass-is-associated-with-improved-outcomes-in-open-thoracic-and-thoracoabdominal-aortic-aneurysm-repair
#9
Jahan Mohebali, Stephanie Carvalho, R Todd Lancaster, Emel A Ergul, Mark F Conrad, W Darrin Clouse, Richard P Cambria, Virendra I Patel
OBJECTIVE: There is no consensus on the use or benefit of extracorporeal circulation (EC) during aneurysm repair of the descending thoracic aorta (DTA) or thoracoabdominal aorta (TAA). We evaluated the role of EC during DTA or TAA aneurysm repair using U.S. Medicare data. METHODS: Medicare (2004-2007) patients undergoing open repair of nonruptured DTA or TAA aneurysm were identified by International Classification of Diseases, Ninth Revision code. Specific exclusions included ascending aortic or arch repairs, concomitant cardiac procedures, and procedures employing deep hypothermic circulatory arrest...
March 31, 2018: Journal of Vascular Surgery
https://www.readbyqxmd.com/read/29605581/hematological-complications-in-children-subjected-to-extracorporeal-membrane-oxygenation
#10
M J Santiago, C Gómez, I Magaña, V Muñoz, P Saiz, A Sánchez, J López-Herce
OBJECTIVES: To analyze the hematological complications and need for transfusions in children receiving extracorporeal life support (ECLS). DESIGN: A retrospective study was carried out. SETTING: A pediatric intensive care unit. PATIENTS: Children under 18 years of age treated with ECLS between September 2006 and November 2015. INTERVENTIONS: None. VARIABLES OF INTEREST: Patient and ECLS characteristics, anticoagulation, hematological and coagulation parameters, transfusions and clinical course...
March 29, 2018: Medicina Intensiva
https://www.readbyqxmd.com/read/29588078/pulsed-doppler-evaluation-of-renal-perfusion-during-pulsatile-extracorporeal-circulation-a-pilot-study
#11
B Carretero de la Encarnación, E Mateo Rodríguez, C S Romero García, M A Revert Ros
INTRODUCTION: Acute renal failure (ARF) after cardiac surgery is a risk factor associated with mortality and use of resources. Some studies have reported beneficial effects of pulsatile flow on cardiopulmonary bypass (CPB) on renal function. The aim of this study is to describe the echographic morphology of the renal arterial wave modifying the parameters of pulsatile CPB. MATERIAL AND METHOD: Descriptive study was performed on 10 patients without previous AFR and undergoing cardiac surgery with CPB...
March 24, 2018: Revista Española de Anestesiología y Reanimación
https://www.readbyqxmd.com/read/29587915/-application-and-prospect-of-extracorporeal-circulation-in-general-thoracic-surgery
#12
Haitao Ma
No abstract text is available yet for this article.
April 20, 2018: Zhongguo Fei Ai za Zhi, Chinese Journal of Lung Cancer
https://www.readbyqxmd.com/read/29579880/complex-congenital-heart-disease-is-heart-transplantation-an-option
#13
I Esteve-Ruiz, A Grande-Trillo, D Rangel-Sousa, A Adsuar-Gómez, M Sobrino-Márquez, E Lage-Gallé
INTRODUCTION: Within the heart transplant (HT) population, few patients have complex congenital heart disease (CHD) underlying disease. Our objective is to assess the complications and follow-up of patients with CHD transplanted in our center (1991-present). MATERIAL AND METHODS: Retrospective analysis of patients older than 14 years old with CHD and HT. Clinical and surgical variables were analyzed. RESULTS: Ten patients (age 25 ± 7 years old, 60% male) were analyzed, which represents 2...
March 2018: Transplantation Proceedings
https://www.readbyqxmd.com/read/29572879/patient-specific-atrial-hemodynamics-of-a-double-lumen-neonatal-cannula-in-correct-caval-position
#14
Jamil Muhammad, Mohammad Rezaeimoghaddam, Bilgesu Cakmak, Reza Rasooli, Ece Salihoglu, Yahya Yıldız, Kerem Pekkan
Clinical success of pediatric veno-venous (VV) extracorporeal membrane oxygenation (ECMO) is associated with the double lumen cannula cardiovascular device design as well as its anatomic orientation in the atrium. The positions of cannula ports with respect to the vena cavae and the tricuspid valve are believed to play a significant role on device hemodynamics. Despite various improvements in ECMO catheters, especially for the neonatal and congenital heart patients, it is still challenging to select a catalogue size that would fit to most patients optimally...
March 23, 2018: Artificial Organs
https://www.readbyqxmd.com/read/29568750/the-effect-of-dexmedetomidine-on-cognitive-function-and-protein-expression-of-a-%C3%AE-p-tau-and-psd95-after-extracorporeal-circulation-operation-in-aged-rats
#15
Ying Zhang, Yong Lin, Qing Liu, Xuemei Yuan, Anqiong Mao, Yuexin Liu, Qun Li, Jie Zheng, Bin Hu, Fengxu Yu
Postoperative cognitive dysfunction (POCD) is a kind of serious neurologic complications and dexmedetomidine has a certain effect on POCD. However, functional mechanism of dexmedetomidine on POCD still remains unclear, so the research mainly studied the effect of dexmedetomidine on cognitive function and protein expression in hippocampus and prefrontal cortex cerebrospinal fluid after extracorporeal circulation operation in aged rats. We Found that, compared with POCD group, the cognitive function was improved in POCD + Dex group...
2018: BioMed Research International
https://www.readbyqxmd.com/read/29562937/cerebral-microembolism-in-the-critically-ill-with-acute-kidney-injury-comet-aki-trial-study-protocol-for-a-randomized-controlled-clinical-trial
#16
Gabor Erdoes, Dominik E Uehlinger, Beatrice Kobel, Monika P Stucki, Roland Wiest, Frank Stueber, Niklaus Fankhauser, Stephan M Jakob, Joerg C Schefold
BACKGROUND: Microembolism is a frequent pathological event during extracorporeal renal replacement therapy (RRT). Some previous data indicate that microemboli are generated in patients who are undergoing RRT and that these may contribute to increased cerebrovascular and neurocognitive morbidity in patients with end-stage renal disease. The current trial aims to quantify the microembolic load and respective qualitative composition that effectively reaches the intracerebral circulation in critically ill patients treated with different RRT modalities for acute kidney injury (AKI)...
March 21, 2018: Trials
https://www.readbyqxmd.com/read/29547575/optical-and-electrical-characterization-of-biocompatible-polymeric-lines-for-hemodialysis-applications
#17
Enrico Ravagli, Stefano Severi
During hemodialysis (HD), blood is circulated through an extracorporeal tubing system (bloodline) made of medical-grade polymeric material. Sensors of various types that do not come into contact with blood (optical, electromagnetic, etc.) are applied directly across the bloodline for clinical purposes and for therapy customization. Thus, a detailed knowledge of the bloodline's physical properties is useful for the development of next-generation HD sensors. In this work, we performed a novel comparative analysis of the materials used by the manufacturers of the bloodlines...
March 16, 2018: Materials
https://www.readbyqxmd.com/read/29534846/lung-transplantation-in-cystic-fibrosis-and-the-impact-of-extracorporeal-circulation
#18
Alberto Jauregui, Maria Deu, Laura Romero, Antonio Roman, Antonio Moreno, Manuel Armengol, Juan Solé
INTRODUCTION: Lung disease is the major cause of death among cystic fibrosis (CF) patients, affecting 80% of the population. The impact of extracorporeal circulation (ECC) during transplantation has not been fully clarified. This study aimed to evaluate the outcomes of lung transplantation for CF in a single center, and to assess the impact of ECC on survival. METHODS: We performed a retrospective observational study of all trasplanted CF patients in a single center between 1992 and 2011...
March 10, 2018: Archivos de Bronconeumología
https://www.readbyqxmd.com/read/29533448/prehospital-medicine-and-the-future-will-ecmo-ever-play-a-role
#19
David Macku, Pavel Hedvicak, John Quinn, Vladimir Bencko
Due to the hybrid warfare currently experienced by multiple NATO coalition and NATO partner nations, the tactical combat casualty care (TCCC) paradigm is greatly challenged. One of the major challenges to TCCC is the ad hoc extension phase in resource-poor environments, referred to as prolonged field care (PFC) and forward resuscitative care (FRC). The nuanced clinical skills with limited resources required by warfighters and auxiliary health care professionals to mitigate death on the battlefield and prevent morbidity and mortality in the PFC phase represent a balance that is still under review...
December 0: Journal of Special Operations Medicine: a Peer Reviewed Journal for SOF Medical Professionals
https://www.readbyqxmd.com/read/29530072/circulating-stem-cells-hif-1-and-sdf-1-in-septic-abdominal-surgical-patients-randomized-controlled-study-protocol
#20
Antonella Cotoia, Lucia Mirabella, Sabrina Altamura, Rachele Villani, Flavia Marchese, Giuseppe Ferrara, Karim Mariano, Tullo Livio, Gilda Cinnella
BACKGROUND: Sepsis caused by complicated intra-abdominal infection is associated with high mortality. Loss of endothelial barrier integrity, inflammation, and impaired cellular oxygen have been shown to be primary contributors to sepsis. To date, little is known regarding the pathway for the mobilization of endothelial progenitor cells (EPCs) from the bone marrow in sepsis whereas stromal-cell-derived factor 1a (SDF-1a) and hypoxia inducible factor 1 (HIF-1) seem to have a role in the EPC response to hypoxic microenvironments...
March 12, 2018: Trials
keyword
keyword
18140
1
2
Fetch more papers »
Fetching more papers... Fetching...
Read by QxMD. Sign in or create an account to discover new knowledge that matter to you.
Remove bar
Read by QxMD icon Read
×

Search Tips

Use Boolean operators: AND/OR

diabetic AND foot
diabetes OR diabetic

Exclude a word using the 'minus' sign

Virchow -triad

Use Parentheses

water AND (cup OR glass)

Add an asterisk (*) at end of a word to include word stems

Neuro* will search for Neurology, Neuroscientist, Neurological, and so on

Use quotes to search for an exact phrase

"primary prevention of cancer"
(heart or cardiac or cardio*) AND arrest -"American Heart Association"