Azem Akilli

The Role of Tilt Training in Preventing Recurrent Syncope in Patients with Vasovagal Syncope: A Prospective and Randomized Study

Background: Recurrent vasovagal syncope (VVS) can be a severely disabling disorder that may lead to an important deterioration of quality of life because of the severity and recurrence of episodes. This study sought to investigate the effectiveness of repeated orthostatic self‐training in preventing syncope in patients with recurrent VVS.

Effect of levosimendan on right ventricular systolic and diastolic functions in patients with ischaemic heart failure.

Objectives:  Levosimendan is a novel positive inotropic calcium sensitiser agent used in acute left heart failure. In this study, the effect of levosimendan on the right ventricular systolic and diastolic functions was evaluated by tissue Doppler comparing them with dobutamine in patients with ischaemic heart failure.

Impaired Endothelial Function in Patients with Myocardial Bridge

Objective: The relationship between myocardial bridging (MB) and ischemic heart disease is still controversial. In this study, we aimed to evaluate the existing atherosclerosis and noninvasive endothelial function of brachial artery in patients with MB. Methods: The present study included 50 patients (group I) who had MB in left anterior descending (LAD) on coronary angiography. All of the coronary artery segments were evaluated by intravascular ultrasound (IVUS). Endothelial function was assessed with measurement of flow‐mediated dilatation (FMD) and nitrate‐dependent dilatation in the brachial artery. The study also included 30 healthy control subjects (group II). Patients in the group I were further subdivided into two subgroups based on the findings on IVUS: group IA included 20 patients without atherosclerotic lesions and group IB included 30 patients with atherosclerotic coronary artery disease in addition to MB. Results: FMD values were found to be significantly lower in the patients with MB (group I) than in the control (6.4 ± 3% vs 11 ± 4%, P <0.001). In regard to FMD values in subgroups, FMD was 7 ± 2% in the group IA and 5.8 ± 1% in the group IB (P = 0.023). On IVUS, atherosclerotic plaque was found proximal to the bridge in the same coronary artery segment in addition to MB in 75% of the patients in group I (group IB). No atherosclerotic plaque was found in within or distal segments of MB. Conclusion: Endothelial function is impaired in patients with MB and there is an increased tendency for atherosclerosis proximal to the bridge in the patients with MB. Endothelial dysfunction is more severe in the patients with atherosclerosis proximal to the bridge.

A rare indication for stenting: Persistent coronary artery spasm

SummaryA 34-year-old man presenting with angina both at rest and on exertion was investigated. He developed severe ST segment elevation and a brief period of ventricular tachycardia during an exercise tolerance test. On coronary angiography, 60% fixed luminal narrowing was observed in the proximal left anterior descending coronary artery and a severe spasm developed at this site, leading to temporary total occlusion of the vessel. Successful coronary angioplasty (PTCA) was performed on this lesion, with a residual 15% narrowing. However, the patient had a recurrence of angina 3 weeks later, despite being administered high doses of nitrate and calcium antagonist. During control angiography, the lesion severity was unchanged, but spasm developed again following contrast injection. At this time, a Palmaz-Schatz stent was implanted. Calcium antagonist, nitrate, Ticlopidine and low molecular weight heparin therapy was started. There was no recurrence of symptoms during a 3-month follow-up. The exercise tolerance test, and myocardial perfusion scintigraphy findings were normal and the stent was patent without restenosis at the end of the 3-month follow-up. Intracoronary stent implantation for persistent coronary spasm refractory to conventional medical therapy can be considered a feasible and attractive treatment modality for the control of symptoms.

Takayasu arteritis in Turkey

Takayasu arteritis is a non-specific inflammatory process of unknown etiology affecting the aorta and its branches. A retrospective study was done in 14 patients diagnosed as Takayasu arteritis. Eleven patients were female and three were male. Ages ranged from 12 to 30 years. Seven patients had type I arteritis, three patients type II arteritis, and four patients type III Takayasu arteritis. Successful angioplasty was performed in five cases.

Effects of Levosimendan on Left Atrial Functions in Patients with Ischemic Heart Failure

With further progression of left ventricular (LV) dysfunction, the left atrial (LA) contribution to LV filling gradually decreases, and LA dysfunction deteriorates the decreased LV filling in patients with heart failure (HF).

Circadian and Infradian Rhythms of Vasovagal Syncope in Young and Middle‐Aged Subjects

Background: The most cardiovascular physiological and pathophysiological events show a circadian rhythm. It is thought that the autonomic nervous system and biologic factors play a key role in the pathogenesis of vasovagal syncope (VVS). In this study, we investigated the circadian and infradian variation of VVS.

Decreased soluble cell adhesion molecules after tirofiban infusion in patients with unstable angina pectoris.

AimThe inflammatory response, initiated by neutrophil and monocyte adhesion to endothelial cells, is important in the pathogenesis of acute coronary syndromes. Platelets play an important role in inflammatory process by interacting with monocytes and neutrophils. In this study, we investigated the effect of tirofiban on the levels of cell adhesion molecules (soluble intercellular adhesion molecule-1, sICAM-1, and vascular cell adhesion molecule-1, sVCAM-1) in patients with unstable angina pectoris (AP).MethodsThirty-five patients with unstable AP (Group I), ten patients with stable AP (Group II) and ten subjects who had angiographycally normal coronary arteries (Group III) were included the study. Group I was divided into two subgroups for the specific treatment regimens: Group IA (n = 15) received tirofiban and Group IB (n = 20) did not. Blood samples for investigating the cell adhesion molecules were drawn at zero time (baseline; 0 h) in all patients and at 72 h in Group I.ResultsThe baseline levels of sICAM-1 and sVCAM-1 were higher in Group I than in Groups II and III. They were higher in Group IA than in Group IB. However, the sICAM-1 and sVCAM-1 levels decreased significantly in Group IA after tirofiban infusion. In contrast, these levels remained unchanged or were increased above the baseline value in Group IB at 72 h.ConclusionThe levels of cell adhesion molecules in patients with unstable AP decreased significantly after tirofiban infusion. Inhibition of platelet function by specific glycoprotein IIb/IIIa antagonists may decrease platelet-mediated inflammation and the ischemic end-point.

Comparison of Ischemic Side Effects of Levosimendan and Dobutamine with Integrated Backscatter Analysis

Levosimendan improves cardiac contractility without increasing oxygen consumption. However, its effects on ischemia were not supported with the utilization of a noninvasive parameter of myocardial characterization.

Is a drug-challenge test with propafenone adequate to exclude Brugada syndrome? : case report - online article

Brugada syndrome is associated with sudden cardiac death in patients with a structurally normal heart. The electrocardiogram (ECG) pattern of Brugada syndrome is characterised by complete or incomplete right bundle branch block and ST-segment elevation in the right precordial leads. These ECG signs may not always be apparent but can be unmasked with certain anti-arrhythmia agents. We report here a case of a 26-year-old woman without detectable structural heart disease but with a history of syncope, cardiac arrest, intubation and defibrillation for ventricular fibrillation. We performed challenge tests with propafenone and ajmaline. After infusion of propafenone, there were minimal ECG changes which were not diagnostic for Brugada syndrome. One week later the provocation test was repeated with ajmaline. During infusion of ajmaline, prominent J waves and ST-segment elevation appeared in the right precordial leads (V1-3). Premature ventricular complexes were seen on a 12-lead ECG. The patients ECG showed Brugada type 1 pattern. She received an internal cardioverter/defibrillator and was discharged with a beta-blocker.