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https://www.readbyqxmd.com/read/29335617/cardiovascular-function-of-modern-pigs-does-not-comply-with-allometric-scaling-laws
#1
Gerard J van Essen, Maaike Te Lintel Hekkert, Oana Sorop, Ilkka Heinonen, Jolanda van der Velden, Daphne Merkus, Dirk J Duncker
Growing concerns have been expressed regarding cardiovascular performance in modern farm pigs, which has been proposed as a critical factor contributing to the reduced adaptability of modern pigs to stress. Here we tested the hypothesis that cardiac dimensions and pump function in modern heavy farm pigs are disproportionally low for their body weight, and investigated potential underlying mechanisms. The results from the present study indeed demonstrate disproportionally low values for stroke volume and cardiac output in pigs with bodyweights over 150 kg...
January 15, 2018: Scientific Reports
https://www.readbyqxmd.com/read/29324494/myocardial-protection-by-glucose-insulin-potassium-in-moderate-to-high-risk-patients-undergoing-elective-on-pump-cardiac-surgery-a-randomized-controlled-trial
#2
Christoph Ellenberger, Tornike Sologashvili, Lukas Kreienbühl, Mustafa Cikirikcioglu, John Diaper, Marc Licker
BACKGROUND: Low cardiac output syndrome is a main cause of death after cardiac surgery. We sought to assess the impact of glucose-insulin-potassium (GIK) to enhance myocardial protection in moderate- to high-risk patients undergoing on-pump heart surgery. METHODS: A randomized controlled trial was performed in adult patients (Bernstein-Parsonnet score >7) scheduled for elective aortic valve replacement and/or coronary artery bypass surgery. Patients were randomized to GIK (20 IU of insulin, 10 mEq of potassium chloride in 50 mL of glucose 40%) or saline infusion given over 60 minutes on anesthetic induction...
January 9, 2018: Anesthesia and Analgesia
https://www.readbyqxmd.com/read/29324489/comparing-methods-for-cardiac-output-intraoperatively-doppler-derived-cardiac-output-measured-with-3-dimensional-echocardiography-is-not-interchangeable-with-cardiac-output-by-pulmonary-catheter-thermodilution
#3
Karin Graeser, Mikhail Zemtsovski, Klaus F Kofoed, Matilde Winther-Jensen, Jens C Nilsson, Jesper Kjaergaard, Hasse Møller-Sørensen
BACKGROUND: Estimation of cardiac output (CO) is essential in the treatment of circulatory unstable patients. CO measured by pulmonary artery catheter thermodilution is considered the gold standard but carries a small risk of severe complications. Stroke volume and CO can be measured by transesophageal echocardiography (TEE), which is widely used during cardiac surgery. We hypothesized that Doppler-derived CO by 3-dimensional (3D) TEE would agree well with CO measured with pulmonary artery catheter thermodilution as a reference method based on accurate measurements of the cross-sectional area of the left ventricular outflow tract...
January 9, 2018: Anesthesia and Analgesia
https://www.readbyqxmd.com/read/29301460/inert-gas-rebreathing-helpful-tool-in-the-management-of-left-ventricular-assist-device-patients
#4
Nils Reiss, Thomas Schmidt, Stephanie Mommertz, Christina Feldmann, Jan Dieter Schmitto
In patients with left ventricular assist devices (LVAD), exercise capacity is a decisive factor regarding the quality of life. When evaluating exercise capacity, precise information about the total cardiac output generated is crucial. To date, complex measurements using a right-heart catheter were necessary in order to determine total cardiac output. The inert gas rebreathing method facilitates non-invasive, direct and valid measurement of total cardiac output as well as associated parameters, like the difference in arteriovenous oxygen saturation, both at rest and during exercise...
January 1, 2018: Perfusion
https://www.readbyqxmd.com/read/29259660/postoperative-narrow-complex-tachycardia-presenting-with-low-cardiac-output
#5
Priyadarshini Arunakumar, Krishna Kumar Mohanan Nair, Ajitkumar Valaparambil
No abstract text is available yet for this article.
2017: Heart Asia
https://www.readbyqxmd.com/read/29250516/use-of-therapeutic-plasma-exchange-during-extracorporeal-life-support-in-critically-ill-cardiac-children-with-thrombocytopenia-associated-multi-organ-failure
#6
Mei Chong, Alejandro J Lopez-Magallon, Lucas Saenz, Mahesh S Sharma, Andrew D Althouse, Victor O Morell, Ricardo Munoz
Background: Thrombocytopenia-associated multi-organ failure (TAMOF) in children is a well-described factor for increased hospital mortality. Low cardiac output syndrome (LCOS) and the effects of cardiopulmonary bypass may manifest with several adverse physiologic and immunologic effects, with varying degrees of thrombocytopenia and multi-organ dysfunction, sometimes very similar to TAMOF. LCOS is a common occurrence in children with critical heart disease, presenting in as much as 23...
2017: Frontiers in Pediatrics
https://www.readbyqxmd.com/read/29250136/%C3%AE-klotho-and-anemia-in-patients-with-chronic-kidney-disease-patients-a-new-perspective
#7
Yang Xu, Hao Peng, Ben Ke
Normocytic normochromic anemia is a common complication of chronic kidney disease (CKD) and is associated with numerous adverse consequences. Certain symptoms previously attributed to CKD are now known to be a consequence of anemia. Anemia contributes to an increased cardiac output, and the development of left ventricular hypertrophy, angina and congestive heart failure, leading to high morbidity and mortality in patients with CKD. The multifunctional α-klotho (KL) protein, which is predominantly expressed in the kidneys, is associated with the occurrence of anemia in patients with CKD...
December 2017: Experimental and Therapeutic Medicine
https://www.readbyqxmd.com/read/29246551/comparative-effectiveness-of-coronary-screening-in-heart-valve-surgery-computed-tomography-versus-conventional-coronary-angiography
#8
Wonjae Lee, Joon Bum Kim, Dong Hyun Yang, Cherry Kim, Jihoon Kim, Min Ho Ju, Ho Jin Kim, Joon-Won Kang, Sung-Ho Jung, Young-Hak Kim, Suk Jung Choo, Cheol Whan Lee, Cheol Hyun Chung, Jae Won Lee, Tae-Hwan Lim
BACKGROUND: Although conventional coronary angiography (CAG) is considered the gold standard for coronary artery disease (CAD) screening in the setting of heart valve surgery, coronary artery computed tomography angiography (CCTA) has emerged as an alternative modality. This study was conducted to evaluate the clinical outcomes of CCTA compared with conventional CAG for CAD screening in patients undergoing heart valve surgery. METHODS: A total of 3150 consecutive patients aged >40 years or with coronary risk factors undergoing elective valve operations between 2001 and 2015 were evaluated...
November 14, 2017: Journal of Thoracic and Cardiovascular Surgery
https://www.readbyqxmd.com/read/29234197/echocardiographic-and-electrocardiographic-predictors-of-adverse-outcomes-in-spontaneous-bacterial-peritonitis
#9
Mahek Shah, Soumya Patnaik, Obiora Maludum, Shantanu Patil, Toni Anne De Venecia, Vincent M Figueredo
Background: Patients with cirrhosis who develop Spontaneous Bacterial Peritonitis (SBP) suffer from cirrhotic cardiomyopathy which is characterized by impaired contractility in response to stress despite a relatively normal resting cardiac output. We hypothesized that electrocardiographic and echocardiographic information would help prognosticate patients developing SBP in addition to existing scoring systems. Methods: Cirrhotic patients admitted to Einstein Medical Center from 01/01/2005 to 6/30/2012 for SBP, and did not receive a transplant within one year, were included...
December 2017: Journal of Clinical and Experimental Hepatology
https://www.readbyqxmd.com/read/29224651/role-of-doppler-echocardiography-for-cardiac-output-assessment-in-fontan-patients
#10
Alexander Egbe, Arooj R Khan, Sana F Khan, Nandan S Anavekar, Sameh M Said, Philip M Young, Emmanuel Akintoye, William R Miranda, Mohamad N Al-Otaibi, Gruschen R Veldtman, Heidi M Connolly
BACKGROUND: To determine (1) correlation between Doppler stroke volume index (SVI) and cardiac magnetic resonance imaging (CMRI) SVI and (2) association between Doppler SVI and Fontan-associated diseases (FAD) and Fontan failure. METHODS: Review of Fontan patients who underwent same-day CMRI and transthoracic echocardiography (TTE), 2005 to 2015. We defined FAD as cardiac thrombus, protein-losing enteropathy, arrhythmia, and hospitalization for heart failure. Fontan failure was defined as Fontan conversion or revision, heart transplantation or listing, or death...
January 2018: American Heart Journal
https://www.readbyqxmd.com/read/29221742/early-experience-with-robotic-mitral-valve-repair-with-intra-aortic-occlusion
#11
Risto Kesävuori, Peter Raivio, Janne J Jokinen, Antero Sahlman, Kari Teittinen, Antti Vento
OBJECTIVE: To report the learning curve and early results of robotic mitral valve repairs in comparison with propensity score-matched sternotomy controls after the adoption of a robotic mitral valve surgery program in a university teaching hospital. METHODS: A total of 142 patients underwent robotic mitral valve repair due to degenerative mitral regurgitation between May 2011 and December 2015. Control patients operated on via the conventional sternotomy approach were selected by the use of propensity score analysis resulting in 2 well-matched study groups...
December 5, 2017: Journal of Thoracic and Cardiovascular Surgery
https://www.readbyqxmd.com/read/29211225/off-pump-versus-on-pump-coronary-artery-bypass-grafting-in-frail-patients-study-protocol-for-the-fragile-multicenter-randomized-controlled-trial
#12
Omar Asdrúbal Vilca Mejía, Michel Pompeu Barros Oliveira Sá, Maurilio Onofre Deininger, Luís Roberto Palma Dallan, Rodrigo Coelho Segalote, Marco Antonio Praça de Oliveira, Fernando Antibas Atik, Magaly Arrais Dos Santos, Pedro Gabriel Melo de Barros E Silva, Rodrigo Mussi Milani, Alexandre Ciappina Hueb, Rosangela Monteiro, Ricardo Carvalho Lima, Luiz Augusto Ferreira Lisboa, Luís Alberto Oliveira Dallan, John Puskas, Fabio Biscegli Jatene
INTRODUCTION: Advances in modern medicine have led to people living longer and healthier lives. Frailty is an emerging concept in medicine yet to be explored as a risk factor in cardiac surgery. When it comes to CABG surgery, randomized controlled clinical trials have primarily focused on low-risk (ROOBY, CORONARY), elevated-risk (GOPCABE) or high-risk patients (BBS), but not on frail patients. Therefore, we believe that off-pump CABG could be an important technique in patients with limited functional capacity to respond to surgical stress...
September 2017: Brazilian Journal of Cardiovascular Surgery
https://www.readbyqxmd.com/read/29202698/safety-and-applicability-of-a-pre-stage-public-access-ventilator-for-trained-laypersons-a-proof-of-principle-study
#13
Patricia Fuchs, Juliane Obermeier, Svend Kamysek, Martin Degner, Hannes Nierath, Henning Jürß, Hartmut Ewald, Jens Schwarz, Martin Becker, Jochen K Schubert
BACKGROUND: Contemporary resuscitation guidelines for basic life support recommend an immediate onset of cardiac compressions in case of cardiac arrest followed by rescue breaths. Effective ventilation is often omitted due to fear of doing harm and fear of infectious diseases. In order to improve ventilation a pre-stage of an automatic respirator was developed for use by laypersons. METHODS: Fifty-two healthy volunteers were ventilated by means of a prototype respirator via a full-face mask in a pilot study...
December 4, 2017: BMC Emergency Medicine
https://www.readbyqxmd.com/read/29201841/the-combined-use-of-cardiac-output-and-intracranial-pressure-monitoring-to-maintain-optimal-cerebral-perfusion-pressure-and-minimize-complications-for-severe-traumatic-brain-injury
#14
Jin Shup So, Jung-Ho Yun
Objective: To show the effect of dual monitoring including cardiac output (CO) and intracranial pressure (ICP) monitoring for severe traumatic brain injury (TBI) patiens. We hypothesized that meticulous treatment using dual monitoring is effective to sustain maintain minimal intensive care unit (ICU) complications and maintain optimal ICP and cerebral perfusion pressure (CPP) for severe TBI patiens. Methods: We included severe TBI, below Glasgow Coma Scale (GCS) 8 and head abbreviation injury scale (AIS) >4 and performed decompressive craniectomy at trauma ICU of our hospital...
October 2017: Korean Journal of Neurotrauma
https://www.readbyqxmd.com/read/29200842/hemodynamic-and-gas-exchange-effects-of-inhaled-iloprost-in-patients-with-copd-and-pulmonary-hypertension
#15
Lan Wang, Yuan-Zhe Jin, Qin-Hua Zhao, Rong Jiang, Wen-Hui Wu, Su-Gang Gong, Jing He, Jin-Ming Liu, Zhi-Cheng Jing
Studies have shown that vasodilators such as iloprost can be useful for treating pulmonary hypertension (PH). However, in patients with COPD, vasodilators may inhibit hypoxic pulmonary vasoconstriction and impair gas exchange. The efficacy and safety of iloprost inhalation was assessed in 67 patients with PH associated with COPD (COPD-PH), diagnosed by right heart catheterization. Of these, 37 patients had severe PH (mean pulmonary arterial pressure [mPAP] >35 mmHg or mPAP 25-35 mmHg with low cardiac index [<2...
2017: International Journal of Chronic Obstructive Pulmonary Disease
https://www.readbyqxmd.com/read/29185616/incremental-prognostic-value-of-conventional-echocardiography-in-patients-with-acutely-decompensated-heart-failure
#16
Fabio Luis de Jesus Soares, Janine Magalhães Garcia de Oliveira, Gabriel Neimann da Cunha Freire, Lucas Carvalho Andrade, Marcia Maria Noya-Rabelo, Luis Claudio Lemos Correia
BACKGROUND: Acutely decompensated heart failure (ADHF) presents high morbidity and mortality in spite of therapeutic advance. Identifying factors of worst prognosis is important to improve assistance during the hospital phase and follow-up after discharge. The use of echocardiography for diagnosis and therapeutic guidance has been of great utility in clinical practice. However, it is not clear if it could also be useful for risk determination and classification in patients with ADHF and if it is capable of adding prognostic value to a clinical score (OPTIMIZE-HF)...
November 27, 2017: Arquivos Brasileiros de Cardiologia
https://www.readbyqxmd.com/read/29183331/four-successful-pregnancies-in-a-patient-with-fontan-palliation-and-congenital-heart-disease-a-case-report
#17
Khalid S Al Najashi, Syed Mehdi, Shazia Mohsin, Merna Atiyah, Hafez A Abdullah, Jassim Abdulhameed, Ahmed M Al Zahrani
BACKGROUND: Fontan is a palliative procedure in patients with single ventricle. Single ventricle supports systemic cardiac output and pulmonary blood flow is passively directed to the right pulmonary artery. Women with Fontan palliation are reported to have increased maternal risk during pregnancy. There are few reports of successful pregnancies in such cases. However data on these pregnancies is lacking, we consider this to be the first reported from kingdom of Saudi Arabia. CASE PRESENTATION: We present a 35-year-old woman from the Kingdom of Saudi Arabia who had Fontan surgery and who had four successful pregnancies and multiple miscarriages...
November 28, 2017: Journal of Cardiothoracic Surgery
https://www.readbyqxmd.com/read/29183138/-experimental-model-for-cardiogenic-shock-with-pericardial-tamponade
#18
Gábor Bari, Szilárd Szűcs, Dániel Érces, Melinda Ugocsai, Noémi Bozsó, Dóra Balog, Mihály Boros, Gabriella Varga
INTRODUCTION: Pericardial tamponade (PT) is a life-threatening condition, with low cardiac output. The hemodynamic consequences of PT can severely affect the circulation of all tissues, including the microcirculation of the kidneys and the intestinal mucosa. Our aim was to develop a hemodynamically stable and controllable large animal model of PT to study the consequences of cardiogenic shock. METHODS: Two groups of anesthetized vietnamese minipigs (n = 6, both groups) were used...
December 2017: Magyar Sebészet
https://www.readbyqxmd.com/read/29176374/intraoperative-vasoplegia-methylene-blue-to-the-rescue
#19
Sharon L McCartney, Lorent Duce, Kamrouz Ghadimi
PURPOSE OF REVIEW: To evaluate the efficacy, dosing, and safety of methylene blue (MTB) in perioperative vasoplegic syndrome (VS). RECENT FINDINGS: Vasoplegic syndrome is a state of persistent hypotension with elevated cardiac output, low filling pressures, and low systemic vascular resistance (SVR). It occurs in up to 25% of patients undergoing cardiac surgery with cardiopulmonary bypass, can last up to 72 h, and is associated with a high mortality rate. MTB has been found to increase SVR and decrease vasopressor requirements in vasoplegic syndrome by inhibiting nitric oxide synthase, thus limiting the generation of nitric oxide, while inhibiting activation of soluble guanylyl cyclase and preventing vasodilation...
February 2018: Current Opinion in Anaesthesiology
https://www.readbyqxmd.com/read/29176136/plasma-neuropeptide-y-levels-in-vasovagal-syncope-in-children
#20
Ying Liao, Wen-Rui Xu, Hong-Xia Li, Chao-Shu Tang, Hong-Fang Jin, Jun-Bao Du
BACKGROUND: Vasovagal syncope (VVS) is the most common cause of syncope in children. Neuropeptide Y (NPY) plays an important role in the regulation of blood pressure (BP), as well as myocardial contractility. This study aimed to explore the role of plasma NPY in VVS in children. METHODS: Fifty-six children who were diagnosed with VVS (VVS group) using head-up tilt test (HUT) and 31 healthy children who were selected as controls (control group) were enrolled. Plasma NPY concentrations were detected...
December 5, 2017: Chinese Medical Journal
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