Presentation
Presents a new chapter on recording and interpreting heart rhythms in patients with pacemakers. Includes new material on interpreting ECG findings associated with implantable cardioverter-defibrillators. [books.google.com]
C as e presentation A 50-year-old female presented to the community hospital after several episo de s of loss of consciousness which were treated by her husband with resuscitative efforts and chest compressions. [yumpu.com]
The correlation between the type of clinical presentation and the timing of R on T was not statistically significant (P value 0.47). Interestingly, 6 patients from 7 who presented with VF degeneration had R on Tasc. [ncbi.nlm.nih.gov]
Case presentation A 64-year-old man with a history of severe ischemic cardiomyopathy, prior coronary artery bypass graft surgery, and a single chamber ICD insertion for primary prevention of arrhythmic death presented to the emergency room with increasing [innovationsincrm.com]
Entire Body System
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Congestive Heart Failure
The patient had previously been in stable, class I–II, chronic systolic congestive heart failure symptoms. [innovationsincrm.com]
Normal ventricular function versus congestive heart failure. See comment in PubMed Commons below Circulation 94: 3161-3167. [omicsonline.org]
Cardiovascular
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Heart Failure
Features new chapters on pediatric electrocardiography that explore rhythm problems associated with pediatric obesity, heart failure, and athletic activity. [books.google.com]
The patient improved rapidly and was discharged on conventional heart failure therapy. A few weeks later, heart failure symptoms were resolved. [innovationsincrm.com]
Keywords: Toxins; Electrolyte imbalance; Hypothermia; Myocardial ischemia; Heart failure Subscription required Not yet a registered user? Please Register Here [scitechnol.com]
failure Left ventricular hypertrophy Hypothermia Subarachnoid hemorrhage Hypothyroidism Diagnosis The ECG tracing in torsades demonstrates a polymorphic ventricular tachycardia with a characteristic illusion of a twisting of the QRS complex around the [ipfs.io]
Neurologic
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Meningism
Ferri’s popular "5 books in 1" format provides quick guidance on short QT syndrome, microscopic polyangiitis, fungal meningitis, and much more. This medical reference makes the answers you need even easier to find - anytime, anywhere. [books.google.com]
Workup
QT, RR, ST Intervals
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Short QT Interval
Gussak I, Brugada P, Brugada J, Wright RS, Kopecky SL, et al. (2000) Idiopathic short QT interval: a new clinical syndrome? See comment in PubMed Commons below Cardiology 94: 99-102. [omicsonline.org]
Other ECG Findings
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Abnormal ECG
Comprehensively and expertly describes how to capture and interpret all normal and abnormal ECG findings in adults and children. [books.google.com]
Treatment
Long-term treatment is required for patients with a congenital long QT-interval syndrome. Treatment choices include beta-blockers, permanent pacing, implantable cardioverter-defibrillator (ICD), or a combination. [merckmanuals.com]
The efficacy of treatment with class I,I,I antiarrhythmic drugs was not apparent but verapamil had an excellent therapeutic effect for it. [link.springer.com]
Treatment was begun with amiodarone, which she took irregularly. [readbyqxmd.com]
Prognosis
Prognosis and therapeutic management in IVF Among survivors of SCD due to IVF, the reported rate of recurrent VF ranges between 22 and 37 percent at two to four years. [omicsonline.org]
Etiology
There are some interesting findings that shed some light into the understanding of the mechanism and etiology of IVF. At almost 8 decades after the original description of IVF [ 1 ], the etiology of this disorder still remains a mystery. [omicsonline.org]
October 2013: Intensive Care Medicine # 11 Giulio Conte, Lucia Coppini, Maria Antonietta Demola, Diego Ardissino Short-coupled variant of torsade de pointes (TdP) is an uncommon variant of polymorphic ventricular tachycardia with unknown etiology. [readbyqxmd.com]
After rhythm stability was achieved, the etiological study was completed by performing cardiac magnetic resonance imaging, which was normal ( Figure 3 ). [elsevier.pt]
The authors stated that this is a good example of the power of genetic diagnosis to direct the selection of appropriate therapy for patients with diseases of heterogeneous genetic etiology. [genome.jp]
Etiology, warning signs and therapy of Torsade de Pointes. A study of 10 patients Circulation 1981 ; 64 : 1167 -1174. [3], Plumb VJ, Arciniegas JG, et al. [academic.oup.com]
Pathophysiology
[…] polymorphic ventricular tachycardia which displays on the electrocardiogram (ECG) as a characteristic feature of beat-to-beat varying QRS morphology prone to revert spontaneously. 1,2 Prolongation of the QT interval as a consequence of congenital or acquired pathophysiological [yumpu.com]
Further review of the causes of QT prolongation Pathophysiology of TdP A prolonged QT reflects prolonged myocyte repolarisation due to ion channel malfunction. [lifeinthefastlane.com]
[…] medical citation needed ] Hypokalemia (low blood potassium) Hypomagnesemia (low blood magnesium) Hypocalcemia (low blood calcium) Bradycardia (slow heartbeat) Heart failure Left ventricular hypertrophy Hypothermia Subarachnoid hemorrhage Hypothyroidism Pathophysiology [en.wikipedia.org]
The pathophysiological basis of long-QT syndrome (LQTS) is prolongation of cardiac ventricular repolarization by acquired factors such as drug exposure or genetic variation in the proteins controlling transmembrane ion-concentration gradients ( 8, 9 ) [pnas.org]
The QT interval, a global index of ventricular repolarization, varies among individuals and is influenced by diverse physiologic and pathophysiologic stimuli such as gender, age, heart rate, electrolyte concentrations, concomitant cardiac disease, and [pubfacts.com]
Prevention
Rapidly find the answers you need with separate sections on diseases and disorders, differential diagnosis, clinical algorithms, laboratory results, and clinical preventive services, plus an at-a-glance format that uses cross-references, outlines, bullets [books.google.com]
Prevention of torsade de pointes in the congenital long QT syndrome: use of a pause prevention pacing algorithm. Heart 1998; 79:417–419. Viskin S, Glikson M, Fish R, et al. Rate smoothing with cardiac pacing for preventing torsade de pointes. [innovationsincrm.com]
ACC/AHA/ESC 2006 guidelines for management of patients with ventricular arrhythmias and the prevention of sudden cardiac death--executive summary: A report of the American College of Cardiology/American Heart Association Task Force and the European Society [en.ecgpedia.org]
Overdrive ventricular pacing could not prevent malignant TdP, but exposed a pause-related TdP initiation pattern. [yumpu.com]
Unlike the other types of antiarrhythmic agents including beta-blockers and amiodarone, verapamil is in our experience the only drug apparently active on the arrhythmias; however, it does not prevent sudden death. [ncbi.nlm.nih.gov]