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Cardiology Research

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https://www.readbyqxmd.com/read/30116458/myocardial-stunning-after-electrocution-with-complete-reversibility-within-24-hours-role-of-repeat-transthoracic-echocardiograms-in-potential-cardiac-transplant-donors
#1
Hassan Tahir, Sarina Sachdev, Landai Nguyen, Nikky Bardia, Bassam Omar, Michael V Cohen
Despite the development of ventricular assist devices, cardiac transplantation remains an important procedure for patients with advanced heart failure. The number of transplants done annually has remained stable because of lack of of donors. Left ventricular systolic dysfunction remains one of the most important reasons for seeking a donor heart. Myocardial stunning is an important cause of reversible systolic dysfunction. Electrical injury is a recognized cause of myocardial stunning with variable duration ranging from days to weeks...
August 2018: Cardiology Research
https://www.readbyqxmd.com/read/30116457/congenital-absence-of-the-left-circumflex-artery-with-super-dominant-right-coronary-artery-extremely-rare-coronary-anomaly
#2
Shakil Sattar Ahmed Shaikh, Vikrant Deshmukh, Vishal Patil, Zahidullah Khan, Rahul Singla, Narender Omprakash Bansal
Among the congenital anomalies of the coronary arteries, absent left circumflex artery (LCX) defect is extremely rare. Only a few cases have been reported in the literature. We report a case of a 48-year-old female who presented with a 4-month history of exertional chest pain with positive stress (treadmill) test. Conventional coronary angiogram showed a normal left anterior descending, absent LCX and a super-dominant right coronary artery (RCA) with prominent branches. Aortography also failed to show a separate ostium for the left circumflex artery...
August 2018: Cardiology Research
https://www.readbyqxmd.com/read/30116456/technical-considerations-in-transradial-unprotected-left-main-stem-rotational-atherectomy-assisted-and-ivus-guided-percutaneous-coronary-intervention-using-the-7-5f-eaucath-sheathless-guiding-catheter-system
#3
George Kassimis, Nicholas Weight, Nestoras Kontogiannis, Tushar Raina
Rotational atherectomy-assisted percutaneous coronary intervention (PCI) on unprotected left main stem (LMS) bifurcation lesions is technically challenging. Intravascular ultrasound (IVUS) has become a standard part of the PCI procedure for the treatment of LMS disease. There is limited experience in performing these cases via a transradial approach using a sheathless guiding catheter (SGC) system. We report a case of a symptomatic octogenarian patient with restrictive angina and significant LMS bifurcation disease, who was successfully treated transradially with the use of the 7...
August 2018: Cardiology Research
https://www.readbyqxmd.com/read/30116455/-superdominant-left-anterior-descending-artery-continuing-as-posterior-descending-artery-extremely-rare-coronary-artery-anomaly
#4
Shakil Sattar Ahmed Shaikh, Kalyan Munde, Vishal Patil, Mukund Phutane, Rahul Singla, Zahidullah Khan, Narender Omprakash Bansal
The posterior descending artery (PDA) supplying the posterior one-third of the inter-ventricular septum usually arises from the right coronary artery (RCA) or the left circumflex artery (LCX). PDA arising from the left anterior descending artery (LAD) is an extremely rare anomaly. Here we report a rare type of left dominant circulation in which a large LAD is continuing as PDA after winding round the apex in the presence of a diminutive RCA. Such a large LAD continuing as PDA is referred as "hyperdominant" or "superdominant"...
August 2018: Cardiology Research
https://www.readbyqxmd.com/read/30116454/a-case-of-pseudoinfarction-pattern-in-diabetic-ketoacidosis-a-diagnostic-and-therapeutic-dilemma
#5
Eliza Sharma, Suyash Dahal, Pratibha Sharma, Dipesh Kc Ghimire, Sumit Dahal
Diabetic ketoacidosis (DKA) is regularly associated with hyperkalemia that results in well-described changes on the electrocardiogram (EKG). However, ST-segment elevations on EKG mimicking acute myocardial infarction have rarely been described in the setting of DKA. Here we present a case of a 43-year-old male with DKA who had pseudoinfarction pattern of ST-segment elevation on EKG that resolved with treatment of DKA and discuss the diagnostic and therapeutic dilemma around the condition.
August 2018: Cardiology Research
https://www.readbyqxmd.com/read/30116453/takotsubo-cardiomyopathy-induced-cardiac-free-wall-rupture-a-case-report-and-review-of-literature
#6
Mina Iskander, Ashraf Abugroun, Kerolus Shehata, Fady Iskander, Ayman Iskander
Takotsubo cardiomyopathy (TCM) is an acquired form of cardiomyopathy that is commonly seen among post-menopausal women. It is characterized by left ventricular apical ballooning, electrocardiographic changes and mild elevation of cardiac enzymes in the absence of significant coronary artery stenosis. TCM usually has benign course. However, on rare instance, it can result in life-threatening and fatal complications including acute cardiogenic shock, ventricular arrhythmias and ventricular wall rupture. We herein report a case of a 77-year-old female who developed TCM complicated with massive pericardial effusion and cardiac arrest...
August 2018: Cardiology Research
https://www.readbyqxmd.com/read/30116452/a-community-level-sample-survey-to-determine-currentunderstanding-about-medical-recycling-of-cardiovascular-implantableelectronic-devices
#7
Milan Mahesh, Munish Sharma, Daniel An Mascarenhas
Background: Medical recycling and reutilization of cardiovascular implantableelectronic devices (CIEDs) have a significant impact not only in patientsof low-income countries but may also in certain patients in the UnitedStates who do not have sufficient medical insurance coverage. Themain determining factor for future utility and popularity of recycledmedical devices is thorough understanding about this topic amongstpublic and healthcare professional. To the best of our knowledge,there has been no study conducted so far at a community level to determinethe understanding in public and healthcare personnel about recyclingof medical devices including CIEDs...
August 2018: Cardiology Research
https://www.readbyqxmd.com/read/30116451/usefulness-of-the-whole-blood-passage-time-as-a-predictor-of-primary-cardiovascular-events-in-patients-with-traditional-cardiovascular-risk-factors
#8
Takashi Hitsumoto
Background: Recent clinical studies have reported that impaired hemorheology is a significant cardiovascular risk factor, but there has been no prospective study of its relationship with cardiovascular events. The aim of this prospective study was to assess the efficacy of whole blood passage time (WBPT), measured by a microchannel array flow analyzer (MC-FAN), as a predictor of primary cardiovascular events in patients with traditional cardiovascular risk factors. Methods: The study enrolled 1,134 outpatients with traditional cardiovascular risk factors but no history of cardiovascular events (438 men and 696 women; mean ± standard deviation age, 67 ± 11 years)...
August 2018: Cardiology Research
https://www.readbyqxmd.com/read/30116450/ivabradine-versus-beta-blockers-in-mitral-stenosis-in-sinus-rhythm-an-updated-meta-analysis-of-randomized-controlled-trials
#9
John Daniel A Ramos, Elleen L Cunanan, Lauro L Abrahan, Marc Denver A Tiongson, Felix Eduardo R Punzalan
Background: Symptoms of mitral stenosis (MS) are worsened during tachycardia and exercise. Beta-blockers are used in controlling heart rate (HR) in MS, resulting in symptom improvement, but coming with significant side effects. Ivabradine has a selective action on the sinus node devoid of the usual side effects of beta-blockers. Small studies have recently investigated the role of ivabradine in MS in sinus rhythm. Our aim was to determine the efficacy of ivabradine, compared to beta-blockers, in terms of exercise duration, maximum HR achieved, resting HR, mean gradient, and working capacity among patients with MS in sinus rhythm...
August 2018: Cardiology Research
https://www.readbyqxmd.com/read/30116449/association-of-tp-te-qt-ratio-with-ventricular-tachycardia-in-patients-with-idiopathic-outflow-tract-ventricular-premature-contraction
#10
Arina Prihestri Nugraheni, Irsad Andi Arso, Erika Maharani
Background: Idiopathic outflow tract ventricular premature contraction (VPC) can evolve into ventricular tachycardia (VT) via triggered activity mechanism. Transmural dispersion of repolarization (TDR) might play a role in idiopathic outflow tract VT by inducing phase 2 early afterdepolarization (EAD) and serve as the functional substrate for VT. Tp-Te/QT ratio as an arrhythmogenesis index has been reported to be associated with the incidence of ventricular arrhythmia. This study aims to investigate the association between Tp-Te/QT ratio with VT incidence in idiopathic outflow tract VPC...
August 2018: Cardiology Research
https://www.readbyqxmd.com/read/30116448/appropriate-and-inappropriate-implantable-cardioverter-defibrillators-therapies-in-arrhythmogenic-right-ventricular-cardiomyopathy-dysplasia-patients
#11
Bandar Al-Ghamdi, Yaseen Mallawi, Azam Shafquat, Nadiah AlRuwaili, Ayman Alhazaymeh, Waleed Al-Manea, Majid Al-Fayyadh
Background: Arrhythmogenic right ventricular cardiomyopathy/dysplasia (ARVC/D) is an inherited cardiomyopathy characterized histologically by the replacement of ventricular myocardium with fibrous and fatty tissue, and clinically by ventricular tachycardia arrhythmias primarily of right ventricular (RV) origin. Implantable cardioverter defibrillator (ICD) is the only proven therapy to reduce mortality in ARVC/D patients. However, it has the risk of inappropriate anti-tachycardia pacing (ATP) or shocks...
August 2018: Cardiology Research
https://www.readbyqxmd.com/read/30116447/utilization-of-echocardiogram-carotid-ultrasound-and-cranial-imaging-in-the-inpatient-investigation-of-syncope-its-impact-on-the-diagnosis-and-the-patient-s-length-of-hospitalization
#12
Glenmore Lasam, Jaimin Dudhia, Sharen Anghel, Jeffrey Brensilver
Background: Although guidelines suggest that the best strategy for evaluating syncope is clinical history and physical examination, the inappropriate utilization of diagnostic imaging is common. Methods: A single center retrospective analysis conducted in adult patients admitted for evaluation and management of syncope for a period of 12 months. Charts were reviewed to abstract demographic data, admitting and discharge diagnosis, diagnostic investigatory tests including imaging modalities (echocardiogram, carotid ultrasound, and cranial computed tomography (CT)) ordered, subspecialty consultation requested, treatment rendered and hospital length of stay (LOS)...
August 2018: Cardiology Research
https://www.readbyqxmd.com/read/29904460/regarding-the-case-of-postpartum-sudden-cardiac-death-after-spontaneous-coronary-artery-dissection-in-a-patient-with-fibromuscular-dysplasia
#13
Brandon W Calenda, Jeffrey W Olin
No abstract text is available yet for this article.
June 2018: Cardiology Research
https://www.readbyqxmd.com/read/29904459/unusual-presentation-of-spontaneous-coronary-artery-dissection-in-an-older-male
#14
Rajveer Joea, Sarah J Strube, Todd K Zynda
Spontaneous coronary artery dissection (SCAD) is a variant of acute coronary syndrome (ACS) that is poorly understood. SCAD has been linked to fibromuscular dysplasia (FMD), connective tissue disease (CTD), pregnancy and hormonal imbalance, systemic inflammatory conditions (e.g. IBD, vasculitis), and coronary artery vasospasm rather than traditional cardiac risk factors. Symptomology generally accompanying SCAD is indistinguishable from ACS making the timely recognition and diagnosis vital for prompt treatment...
June 2018: Cardiology Research
https://www.readbyqxmd.com/read/29904458/left-main-coronary-artery-diverticulum-case-report-and-review-of-the-literature
#15
Hassan Tahir, Timothy Kennedy, M Umer Awan, Bassam Omar, Christopher Malozzi, G Mustafa Awan
Coronary artery disease is a major cause of morbidity and mortality, and while most commonly is atherosclerotic, it can present with variable manifestations, both congenital and acquired. One such manifestation is coronary aneurysm, which is a localized dilatation of a coronary artery wall segment to greater than 1.5 times the adjacent normal segments. While a dilated outpouching of a coronary artery has been commonly classified as a coronary aneurysm, a non-dilated outpouching is rare and is referred to as a diverticulum, with only one previous case report in the literature...
June 2018: Cardiology Research
https://www.readbyqxmd.com/read/29904457/atrial-metastasis-of-renal-cell-carcinoma-a-rare-presentation
#16
Shilpi Shah, Poornima Vinod, Mohamed Khayata, Jason L Lane, Vinayak Hegde, Rupesh Raina
Renal cell carcinoma (RCC) is an aggressive and lethal tumor that has a high frequency of metastatic spread to unpredictable sites. One quarter of patients have either distant metastases or significant local-regional disease with atypical symptoms on presentation. We present a 41-year-old patient with symptoms of right heart failure and was found to have metastatic renal cell carcinoma with enhancing tumor from left renal vein up to right atrium.
June 2018: Cardiology Research
https://www.readbyqxmd.com/read/29904456/brockenbrough-braunwald-morrow-sign-an-evaluative-hemodynamic-maneuver-for-left-ventricular-outflow-tract-obstruction
#17
Glenmore Lasam
A case of a 77-year-old woman with a history of hypertrophic cardiomyopathy (HCM) presented with intermittent episodes of exertional dyspnea and chest discomfort. Her coronary angiogram revealed normal coronary arteries but with hypertrophic obstructive cardiomyopathy with an increasing left ventricular-aortic gradient on isoproterenol provocation. Likewise, an intensified gradient was observed after a premature ventricular contraction (PVC) that is distinguished as the Brockenbrough-Braunwald-Morrow sign substantiating confirmation of left ventricular outflow tract (LVOT) obstruction...
June 2018: Cardiology Research
https://www.readbyqxmd.com/read/29904455/high-grade-atrioventricular-block-in-von-recklinghausen-disease-a-rare-phenomenon
#18
Glenmore Lasam, Marcelina Lasam
A case of a 73-year-old woman with a history of von Recklinghausen disease (neurofibromatosis type 1) who presented initially with a gradual onset of shortness of breath and lightheadedness with no associated fever, chills, angina, palpitations, cough, weight loss, night sweats, nausea, vomiting, or constipation. She was found to be severely bradycardic and in third degree atrioventricular block by her primary care physician. She was admitted in the hospital because of intermittent bouts of lightheadedness and progression of the shortness of breath...
June 2018: Cardiology Research
https://www.readbyqxmd.com/read/29904454/a-rare-case-of-native-mitral-valve-bacillus-cereus-endocarditis-culminating-into-a-cerebrovascular-infarction
#19
Bibai Ren, Glenmore Lasam
We report a case of a 56-year-old man who presented initially with a sudden onset of right-sided facial droop and weakness, aphasia, and confusion with no associated fever, chills, syncope, fatigue, weight loss, night sweats, nausea, vomiting, diarrhea, odontalgia, palpitations, cough, or dyspnea. Code stroke was called and the patient received tissue plasminogen activator (tPA) with subsequent resolution of his symptoms. Cranial magnetic resonance imaging showed left frontal punctate cortical restricted diffusion consistent with subacute to acute infarction...
June 2018: Cardiology Research
https://www.readbyqxmd.com/read/29904453/rotablation-for-stent-underexpansion-an-effective-alternative
#20
Michael Spartalis, Diamantis I Tsilimigras, Demetrios Moris, Christos Kontogiannis, Dimitrios C Iliopoulos, Eleftherios Spartalis
A 75-year old female was evaluated for recurrent angina. She had an underexpanded stent. Conventional methods failed to achieve a full stent expansion. Rotablation resulted in an excellent angiographic outcome and full stent deployment. The patient remains angina-free at 1-year follow-up.
June 2018: Cardiology Research
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