D Katritsis

..Fractional flow reserve (FFR) may yield false-negative results in up to 12% of lesions tested, and there is a zone of uncertainty at borderline values...

..The aim of this study was to compare a superior PV isolation approach with isolation of all PVs for treatment of PAF...

..The prognostic value of NSVT in conditions such as the long-QT syndromes, primary ventricular fibrillation, and Brugada syndrome, as well as in patients with hypertension and valvular disease, has not been established...

..Such a staged approach might offer slightly lower success rates but with a significantly lower radiation exposure and procedural time and at a smaller risk of ablation induced PV stenosis...

..The clinical significance of conduction recurrences in isolated pulmonary veins of patients with atrial fibrillation is not established...

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..Thus, the coronary sinus may serve both as a bystander to arrhythmia circuits as well as an original source of cardiac arrhythmia...

..The purpose of this study was to investigate the electrophysiologic characteristics of the inferior extensions of the human atrioventricular (AV) node and their possible relationship to slow pathway conduction...

..Intracoronary transplantation of MSCs and EPCs is feasible, safe, and may contribute to regional regeneration of myocardial tissue early or late following MI...

..To investigate the prognostic significance and electrophysiological characteristics of dobutamine stress echo (DSE)-induced sustained monomorphic ventricular tachycardia (VT)...

..Longitudinal studies on lone AF are rare and the incidence of hypertension in this population unknown. This study aimed at investigating the incidence of arterial hypertension in patients with apparently lone atrial fibrillation (AF)...

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..ECG monitoring during initiation of quinolone treatment is indicated only in patients with conditions known to predispose to torsades or to those receiving concomitant medications that prolong the QT interval...

..This aim of this study was to investigate the conduction properties and potential arrhythmogenicity of CS and left atrial myocardial connections in patients with and patients without paroxysmal atrial fibrillation (PAF)...

..The pattern of circumferential activation in the CS has not been investigated. Furthermore, no data exist on conduction characteristics within the great cardiac vein (GCV) or the middle cardiac vein (MCV)...

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..The ligament of Marshall is a left atrial neuromuscular bundle with sympathetic innervation that may be a source of atrial fibrillation (AF)-inducing automatic activity...

..The efficacy and safety of this approach are currently evaluated in several ongoing trials...

..91 or larger than 0.94. Overall, IVUS and FFR have substantial concordance with respect to slotted-tube stent deployment. However, FFR values between 0.91 and 0.94 after inflation are difficult to interpret...

..Our method can be used for calculation of radiation risk to patients and radiation dose to coronary arteries by using external dosimeters. Cathet. Cardiovasc. Intervent. 51:259-264, 2000...

..CONCLUSIONS: Among patients with suspected CAD undergoing coronary angiography, increased CRP is strongly associated with unstable angina and with specific high-risk features of the culprit coronary lesions...

..The combination of these factors may increase the risk of plaque rupture and thrombus formation at these sites...

..Predictions indicate that myocardial motion has only a minor effect on flow distribution within the arterial tree relative to the effect of the blood pressure pulse...

..This case underlines the possible need for long term antiplatelet medication among patients receiving sirolimus eluting stents...

..CFD simulations in a reconstructed model of stenotic LAD segments indicate that specific anatomic characteristics create zones of vortices and flow recirculation that promote thrombus formation and potentially myocardial infarction...

..This study aimed at comparing three-dimensional (3-D) reconstruction with two-dimensional coronary angiograms with respect to anatomical parameters that might affect plaque formation and rupture...

..Failure to achieve left ventricular pacing remains one of the obstacles to cardiac resynchronisation therapy...

..This study was designed to compare direct stenting with balloon predilatation followed by stent placement using only drug-eluting stents...

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..In conclusion, QCA does not predict the functional significance of coronary lesions. FFR shows modest concordance with noninvasive imaging tests. The prognostic implications of discordant FFR and imaging results need further study...

..A hydrophilic angioplasty wire is then utilized for the negotiation of the inferior left ventricular vein and successful placement of the left ventricular pacing lead...

..To study retrograde slow pathway conduction by means of right- and left-sided septal mapping...

..A detailed analysis of the anatomic relationships of the site of culprit lesions that have resulted in acute coronary syndromes (ACS) has not been reported...

..The mechanism and relevance of these concepts remain speculative...

..To investigate the prevalence of underlying, inducible supraventricular arrhythmias in patients referred for ablation of atrial fibrillation (AF)...

..In the present article, we summarize the available evidence and propose a comprehensive model of the tachycardia circuit for all forms of atrioventricular nodal reentrant tachycardia based on the concept of atrionodal inputs...

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..Exposure optimization though should be constantly sought through continuous review of procedures...

..8%, P =.017). CONCLUSIONS: Vitamin C is a potent acute vasodilator in both smokers and nonsmokers and is superior to diltiazem in preoperative coronary patients who need protection from vasospasm of the radial conduit...

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..36 to 0.81; P=0.003) and, if deaths during the first 12 months were excluded, 0.46 (95% CI, 0.27 to 0.76; P=0.003). CONCLUSIONS: Patients subjected to CABG within 7 days after thrombolysis demonstrated increased long-term survival...

..We compared two consecutive series of patients treated with sirolimus-eluting stents (SES) or paclitaxel-eluting stents (PES)...

..The aim of this study was to assess whether small creatine kinase-MB isoenzyme (CK-MB) elevations after percutaneous coronary intervention (PCI) affect the subsequent mortality risk...

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..02 [95% CI 0.85 to 1.24]). CONCLUSIONS: In patients undergoing PCI, GP IIb/IIIa receptor antagonists confer a significant and sustained decrease (20% to 30%) in the risk of death...

..Electrogram-guided and combined approaches are also used, particularly in patients with persistent atrial fibrillation, whereas new methods such as autonomic denervation are under investigation...

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..86) lower risk of relapse of AF compared with patients in the bisoprolol group, although results were statistically insignificant (p = 0.661) after controlling for patient age, gender, baseline heart rate, and left atrial diameter...

..Operators should take into account long-term consequences of adopted techniques rather than immediate angiographic results. We review existing evidence and provide our recommendations in this setting...

..Coronary doses and total radiation risk of fatal cancer are also calculated, and a method for establishing dose reference level values is proposed...

..001; grade of inflammation, P <.001). CONCLUSION: Early ischemic preconditioning without hypotension protects against spinal cord injury after aortic occlusion, as confirmed by using the Tarlov score and histopathology...

..Results of randomized trials that have compared mechanical coronary artery recanalization versus medical therapy for total occlusion late after myocardial infarction (MI) have been conflicting...

..001; and grade of inflammation, P <.001). CONCLUSION: Ischemic preconditioning (late phase, 48 hours after the first occlusion) reduces spinal cord injury after aortic occlusion, as estimated with Tarlov's score and histopathology...

..We report on a family with a mutation of the lamin A/C gene (c.908-909delCT)...