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Perioperative troponin

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https://www.readbyqxmd.com/read/28207554/isolated-cardiac-troponin-rise-does-not-modify-the-prognosis-in-elderly-patients-with-hip-fracture
#1
Hélène Vallet, Alice Breining, Yannick Le Manach, Judith Cohen-Bittan, Anthony Mézière, Mathieu Raux, Marc Verny, Bruno Riou, Frédéric Khiami, Jacques Boddaert
Perioperative myocardial infarction remains a life-threatening complication in noncardiac surgery and even an isolated troponin rise (ITR) is associated with significant mortality. Our aim was to assess the prognostic value of ITR in elderly patients with hip fracture.In this cohort study, all patients admitted between 2009 and 2013 in our dedicated geriatric postoperative unit after hip fracture surgery with a cardiac troponin I determination were included and divided into Control, ITR, and acute coronary syndrome (ACS) groups...
February 2017: Medicine (Baltimore)
https://www.readbyqxmd.com/read/28152655/inflammatory-cytokine-response-and-cardiac-troponin-i-changes-in-cardiopulmonary-bypass-using-two-cardioplegia-solutions-del-nido-and-modified-st-thomas-a-randomized-controlled-trial
#2
Farhad Gorjipour, Maziar Gholampour Dehaki, Ziae Totonchi, Seyed Javad Hajimiresmaiel, Rasoul Azarfarin, Hamidreza Pazoki-Toroudi, Mohammad Mahdavi, Mahtab Korbi, Mahyar Gholampour Dehaki, Behrouz Soltani, Fazel Gorjipour
BACKGROUND: Long intervals of del Nido (DN) solution administration, 90 minutes, may result in rewarming of the myocardial tissue and elevate metabolic demand and hypoxia. This will potentially increase inflammatory response due to ischemia-reperfusion injury. We conducted this study to compare the inflammatory response between patients receiving DN and multi-dose St Thomas' cardioplegia solution (MST) in cardiopulmonary bypass (CPB) surgery for the correction of tetralogy of Fallot (TF)...
February 1, 2017: Perfusion
https://www.readbyqxmd.com/read/28131774/high-sensitivity-troponin-release-profile-after-cardiac-surgery
#3
Phuong L Markman, John-Paul Tantiongco, Jayme S Bennetts, Robert A Baker
BACKGROUND: Postoperative serum troponin levels and perioperative myocardial infarction (MI) rates correlate with mortality and morbidity following cardiac surgery. The objective of this study was to document the release profile of high sensitivity troponin T (hsTnT) following different cardiac operations. METHODS: Patients undergoing one of five different isolated cardiac surgical procedures (eligible preoperative hsTnT <29ng/L, serum creatinine < 0.2mmol/L) were recruited prospectively...
December 23, 2016: Heart, Lung & Circulation
https://www.readbyqxmd.com/read/28062620/application-of-cardiac-troponin-in-cardiovascular-diseases-other-than-acute-coronary-syndrome
#4
REVIEW
Kai M Eggers, Bertil Lindahl
BACKGROUND: Increased cardiac troponin concentrations in acute coronary syndrome (ACS) identify patients with ongoing cardiomyocyte necrosis who are at increased risk. However, with the use of more precise assays, cardiac troponin increases are commonly noted in other cardiovascular conditions as well. This has generated interest in the use of cardiac troponin for prognostic assessment and clinical management of these patients. In this review, we have summarized the data from studies investigating the implications of cardiac troponin concentrations in various acute and chronic conditions beyond ACS, i...
January 2017: Clinical Chemistry
https://www.readbyqxmd.com/read/27932153/a-heartbreaking-renal-transplantation-is-norepinephrine-the-culprit-to-blame
#5
M G Vailas, S Vernadakis, K Kakavia, I Paizis, J Bokos, J Boletis, G Zavos
INTRODUCTION: Takotsubo cardiomyopathy (TCM), also known as "broken heart syndrome," "apical ballooning syndrome," and "stress-induced cardiomyopathy," was first described in Japanese patients in 1990 by Sato et al. TCM is an increasingly recognized syndrome characterized by transient and reversible systolic dysfunction of the apical and middle segments of the left ventricle. This syndrome resembles acute myocardial infarction in the absence of evident coronary artery occlusion. Herein, we present a case of a 51-year-old male who underwent his second deceased-donor renal transplantation for end-stage-renal-disease due to a work-related accident...
November 2016: Transplantation Proceedings
https://www.readbyqxmd.com/read/27919716/postoperative-cardiac-ischemia-detection-by-continuous-12-lead-electrocardiographic-monitoring-in-vascular-surgery-patients-a-prospective-observational-study
#6
Aino Ollila, Juha Virolainen, Joonas Vanhatalo, Pirkka Vikatmaa, Ilkka Tikkanen, Maarit Venermo, Markku Salmenperä, Ville Pettilä, Leena Vikatmaa
OBJECTIVES: Elderly patients undergoing vascular surgery are at major risk for perioperative cardiac complications. The authors investigated continuous electrocardiographic Holter monitoring in a postoperative setting to determine the degree of postoperative ischemic load and its possible associations with perioperative myocardial infarction. DESIGN: A prospective, observational study. SETTING: One university hospital. PARTICIPANTS: The study comprised 51 patients aged 65 years or older undergoing peripheral arterial surgery...
September 28, 2016: Journal of Cardiothoracic and Vascular Anesthesia
https://www.readbyqxmd.com/read/27882105/a-pilot-study-of-perioperative-esmolol-for-myocardial-protection-during-on-pump-cardiac-surgery
#7
Xue Liu, Fengxia Shao, Liu Yang, Youhai Jia
The protective effects of preprocedural esmolol on myocardial injury and hemodynamics have not, to date, been investigated in patients who were scheduled for cardiac surgeries under a cardiopulmonary bypass (CPB). A pilot randomized controlled trial was performed at The First Affiliated Hospital of Dalian Medical University (Dalian, China). Patients scheduled for elective open-heart surgeries under CBP were included, and were randomized to esmolol and control groups. For patients in the esmolol groups, intravenous esmolol (70 µg/kg/min) was administered at the time of incision until CPB was performed...
November 2016: Experimental and Therapeutic Medicine
https://www.readbyqxmd.com/read/27870734/incremental-value-of-preoperative-copeptin-for-predicting-myocardial-injury
#8
Eckhard Mauermann, Daniel Bolliger, Esther Seeberger, Christian Puelacher, Sydney Corbiere, Miodrag Filipovic, Manfred Seeberger, Christian Mueller, Giovanna Lurati Buse
BACKGROUND: Copeptin, a novel marker of endogenous stress, has shown diagnostic and prognostic value in nonsurgical patients with a suspected coronary event. We aimed to assess the incremental value of copeptin in addition to established preoperative risk indices to predict the occurrence of postoperative myocardial injury. METHODS: This secondary analysis of prospectively collected data included adults undergoing noncardiac surgery with risk factors for adverse perioperative cardiac events based on preoperative risk stratification...
December 2016: Anesthesia and Analgesia
https://www.readbyqxmd.com/read/27865641/canadian-cardiovascular-society-guidelines-on-perioperative-cardiac-risk-assessment-and-management-for-patients-who-undergo-noncardiac-surgery
#9
Emmanuelle Duceppe, Joel Parlow, Paul MacDonald, Kristin Lyons, Michael McMullen, Sadeesh Srinathan, Michelle Graham, Vikas Tandon, Kim Styles, Amal Bessissow, Daniel I Sessler, Gregory Bryson, P J Devereaux
The Canadian Cardiovascular Society Guidelines Committee and key Canadian opinion leaders believed there was a need for up to date guidelines that used the Grading of Recommendations Assessment, Development, and Evaluation (GRADE) system of evidence assessment for patients who undergo noncardiac surgery. Strong recommendations included: 1) measuring brain natriuretic peptide (BNP) or N-terminal fragment of proBNP (NT-proBNP) before surgery to enhance perioperative cardiac risk estimation in patients who are 65 years of age or older, are 45-64 years of age with significant cardiovascular disease, or have a Revised Cardiac Risk Index score ≥ 1; 2) against performing preoperative resting echocardiography, coronary computed tomography angiography, exercise or cardiopulmonary exercise testing, or pharmacological stress echocardiography or radionuclide imaging to enhance perioperative cardiac risk estimation; 3) against the initiation or continuation of acetylsalicylic acid for the prevention of perioperative cardiac events, except in patients with a recent coronary artery stent or who will undergo carotid endarterectomy; 4) against α2 agonist or β-blocker initiation within 24 hours before surgery; 5) withholding angiotensin-converting enzyme inhibitor and angiotensin II receptor blocker starting 24 hours before surgery; 6) facilitating smoking cessation before surgery; 7) measuring daily troponin for 48 to 72 hours after surgery in patients with an elevated NT-proBNP/BNP measurement before surgery or if there is no NT-proBNP/BNP measurement before surgery, in those who have a Revised Cardiac Risk Index score ≥1, age 45-64 years with significant cardiovascular disease, or age 65 years or older; and 8) initiating of long-term acetylsalicylic acid and statin therapy in patients who suffer myocardial injury/infarction after surgery...
January 2017: Canadian Journal of Cardiology
https://www.readbyqxmd.com/read/27833481/cardiac-and-renal-protective-effects-of-dexmedetomidine-in-cardiac-surgeries-a-randomized-controlled-trial
#10
A S Ammar, K M Mahmoud, Z A Kasemy, M A Helwa
BACKGROUND: Cardiac and renal injuries are common insults after cardiac surgeries that contribute to perioperative morbidity and mortality. Dexmedetomidine has been shown to protect several organs against ischemia/reperfusion-(I/R) induced injury. We performed a randomized controlled trial to assess the effect of dexmedetomidine on cardiac and renal I/R injury in patients undergoing cardiac surgeries. MATERIALS AND METHODS: Fifty patients scheduled for elective cardiac surgeries were randomized to dexmedetomidine group that received a continuous infusion of dexmedetomidine initiated 5 min before cardiopulmonary bypass (1 μg/kg over 15 min, followed by 0...
October 2016: Saudi Journal of Anaesthesia
https://www.readbyqxmd.com/read/27775784/serum-troponin-i-concentrations-assessed-18-24-hours-after-coronary-artery-bypass-grafting-are-significant-predictors-of-early-patient-prognosis
#11
Q-L Ma, H-J Wang, M-N Shi, J-H An, J Ma, D Yu, M Tang, F-W Shi
OBJECTIVE: Coronary heart disease (CHD) is a frequent medical condition in developed countries and is one of the most serious diseases threatening patients' lives. Perioperative myocardial infarction is the major cause of perioperative cardiac death and cardiac arrest, but is difficult to be precisely identified by observing clinical symptoms or assessing cardiac enzyme levels or by ECG examination. Therefore, assessment of patient prognosis requires reliable predictors. In this regard, we tested the prognostic value of serum troponin I (TnI) concentrations...
October 2016: European Review for Medical and Pharmacological Sciences
https://www.readbyqxmd.com/read/27738245/perioperative-myocardial-infarction-in-non-cardiac-surgery-patients-a-prospective-observational-study
#12
A Ollila, L Vikatmaa, J Virolainen, P Vikatmaa, A Leppäniemi, A Albäck, M Salmenperä, V Pettilä
BACKGROUND AND AIMS: Perioperative myocardial infarction is an underdiagnosed complication causing morbidity, mortality, and considerable costs. However, evidence of preventive and therapeutic options is scarce. We investigated the incidence and outcome of perioperative myocardial infarction in non-cardiac surgery patients in order to define a target population for future interventional trials. MATERIAL AND METHODS: We conducted a prospective single-center study on non-cardiac surgery patients aged 50 years or older...
October 13, 2016: Scandinavian Journal of Surgery: SJS
https://www.readbyqxmd.com/read/27726853/frequency-of-increase-in-cardiac-troponin-levels-after-peripheral-arterial-operations-carotid-endarterectomy-abdominal-aorta-procedure-distal-bypass-and-their-effect-on-medical-management
#13
Yader Sandoval, Marina Zakharova, Thomas S Rector, Emmanouil S Brilakis, Todd Drexel, Edward O McFalls, Santiago Garcia
The utility of measuring cardiac troponins (cTn) in asymptomatic patients during the perioperative period has been controversial. In the present substudy of the Cardiac Remote Ischemic Preconditioning Prior to Elective Vascular Surgery Trial (NCT01558596), we hypothesized that surveillance of myocardial injury with cTnI in the perioperative period would lead to initiation or intensification of medical therapies for coronary artery disease. Increases in cTnI ≥0.01 μg/l in the perioperative period were considered clinically significant...
September 15, 2016: American Journal of Cardiology
https://www.readbyqxmd.com/read/27688236/cardiac-remote-ischemic-preconditioning-prior-to-elective-vascular-surgery-cripes-a-prospective-randomized-sham-controlled-phase%C3%A2-ii-clinical-trial
#14
Santiago Garcia, Thomas S Rector, Marina Zakharova, Rebekah R Herrmann, Selcuk Adabag, Stefan Bertog, Yader Sandoval, Steve Santilli, Emmanouil S Brilakis, Edward O McFalls
BACKGROUND: Remote ischemic preconditioning (RIPC) has been shown to reduce infarct size in animal models. We hypothesized that RIPC before an elective vascular operation would reduce the incidence and amount of a postoperative rise of the cardiac troponin level. METHODS AND RESULTS: Cardiac Remote Ischemic Preconditioning Prior to Elective Vascular Surgery (CRIPES) was a prospective, randomized, sham-controlled phase 2 trial using RIPC before elective vascular procedures...
September 29, 2016: Journal of the American Heart Association
https://www.readbyqxmd.com/read/27687420/surgical-apgar-score-is-associated-with-myocardial-injury-after-noncardiac-surgery
#15
L McLean House, Khensani N Marolen, Paul J St Jacques, Matthew D McEvoy, Jesse M Ehrenfeld
STUDY OBJECTIVE: To assess the impact of intraoperative hemodynamics in the development of perioperative myocardial infarction (MI) and myocardial ischemia after noncardiac surgery. DESIGN: Single-center retrospective cohort study of surgical patients from 2007 to 2012. SETTING: Postanesthesia care unit, intensive care unit, and medical-surgical ward at an academic tertiary medical center. PATIENTS: A total of 46,799 adult noncardiac, nonthoracic surgery patients, for which 2290 peak cardiac troponin (cTn) levels were available...
November 2016: Journal of Clinical Anesthesia
https://www.readbyqxmd.com/read/27631445/-the-perioperative-myocardial-infarction-an-interdisciplinary-task
#16
Konstantinos Karatolios, Caroline Rolfes, Hinnerk Wulf, Bernhard Schieffer
Cardiovascular complications, particularly perioperative myocardial infarction (PMI), are major contributors to mortaliyt after noncardiac surgery. PMI often occurs unnoticed without symptoms or ECG changes. Despite ist silent presentation, PMI is associated with increased mortality. The combination of high associated mortality and diagnostic challenges mandates increased awareness of PMI. Perioperative myocardial infarction may result from plaque rupture (PMI type I) or be caused by a myocardial supply-demand imbalance of oxygen without plaque rupture (PMI type II)...
September 2016: Anästhesiologie, Intensivmedizin, Notfallmedizin, Schmerztherapie: AINS
https://www.readbyqxmd.com/read/27595528/efficacy-of-different-perioperative-statin-regimens-on-protection-against-post-coronary-artery-bypass-grafting-major-adverse-cardiac-and-cerebral-events
#17
Aya G Elmarsafawi, Maggie M Abbassi, Sameh Elkaffas, Hassan M Elsawy, Nirmeen A Sabry
OBJECTIVES: Comparing different perioperative statin regimens for the prevention of post-coronary artery bypass grafting adverse events. DESIGN: A randomized, prospective study. SETTING: Cardiothoracic surgical units in a government hospital. PARTICIPANTS: The study comprised 94 patients scheduled for elective, isolated on- or off- pump coronary artery bypass grafting. INTERVENTIONS: Patients were assigned randomly to 1 of the following 3 treatment groups: group I (80 mg of atorvastatin/day for 2 days preoperatively), group II (40 mg of atorvastatin/day for 5-9 days preoperatively), or group III (80 mg of atorvastatin/day for 5-9 days preoperatively)...
December 2016: Journal of Cardiothoracic and Vascular Anesthesia
https://www.readbyqxmd.com/read/27443427/percutaneous-intervention-for-myocardial-infarction-after-noncardiac-surgery-patient-characteristics-and-outcomes
#18
Akhil Parashar, Shikhar Agarwal, Amar Krishnaswamy, Karan Sud, Kanhaiya L Poddar, Mehak Bassi, Stephen Ellis, E Murat Tuzcu, Venu Menon, Samir R Kapadia
BACKGROUND: Few studies have explored percutaneous coronary intervention (PCI) in perioperative myocardial infarction (PMI), even though PMI is a major cause of mortality in patients undergoing urgent/emergent noncardiac surgery. OBJECTIVES: This study sought to describe the angiographic characteristics and outcomes in patients presenting to the cardiac catheterization laboratory for myocardial infarction sustained after undergoing noncardiac surgery, with a detailed analysis of those undergoing PCI...
July 26, 2016: Journal of the American College of Cardiology
https://www.readbyqxmd.com/read/27403189/acute-fulminant-myocarditis-successfully-bridged-to-recovery-with-left-ventricular-assist-device-and-complicated-by-flail-mitral-valve
#19
Pınar Türker Duyuler, Serkan Duyuler, Ekrem Şahan, Şeref Alp Küçüker
Acute fulminant myocarditis is a life-threatening inflammatory disease of the myocardium characterized by the rapid deterioration of the hemodynamic status of the affected individual. With prompt recognition and appropriate management, complete recovery of ventricular function is likely within a few weeks. We introduce a 28-year-old man with acute fulminant myocarditis, who experienced circulatory collapse following acute angina and dyspnea. The patient had high troponin levels with low ejection fraction and normal coronary arteries...
January 13, 2016: Journal of Tehran Heart Center
https://www.readbyqxmd.com/read/27397448/short-term-prognostic-value-of-perioperative-coronary-sinus-derived-serum-cardiac-troponin-i-creatine-kinase-mb-lactate-pyruvate-and-lactate-pyruvate-ratio-in-adult-patients-undergoing-open-heart-surgery
#20
Ujjwal Kumar Chowdhury, Avneesh Sheil, Poonam Malhotra Kapoor, Rajiv Narang, Parag Gharde, Vishwas Malik, Mani Kalaivani, Arindam Chaudhury
OBJECTIVES: To investigate the release pattern of different cardiac metabolites and biomarkers directly from the coronary sinus (CS) and to establish the diagnostic discrimination limits of each marker protein and metabolites to evaluate perioperative myocardial injury in patients undergoing cardiac surgery under cardiopulmonary bypass (CPB). PATIENTS AND METHODS: Sixty-eight patients undergoing first mitral and/or aortic valve replacements with/without coronary artery bypass grafting and Bentall procedure under CPB and blood cardioplegic arrest were studied...
July 2016: Annals of Cardiac Anaesthesia
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