Hekim Karapinar

Cardiac findings in children with Crimean-Congo hemorrhagic fever

Summary Background Crimean-Congo hemorrhagic fever (CCHF) involves the multi-organ systems. The involvement of the heart in adult patients has been described previously. We investigated the electrocardiographic and echocardiographic findings of pediatric patients with CCHF. Material/Methods Patients younger than 16 years of age diagnosed with CCHF were enrolled in the study. The diagnosis of CCHF infection was based upon typical clinical and epidemiological findings and serological tests. All patients underwent a thorough cardiologic evaluation. A standard 12-lead electrocardiography and echocardiography were performed. Results Twenty-three consecutive patients who were hospitalized with diagnosis of CCHF were enrolled in the study (mean age: 12±2 years, 6 female). All electrocardiographic parameters were within normal ranges according to age. Seven patients (30%) had minimal (<1 cm) pericardial effusion. Fifteen (65%) patients had segmental wall motion abnormalities (hypokinesia). A second echocardiography revealed that all wall motion abnormalities had disappeared; the pericardial effusion persisted in only 2 of 7 patients (28%). Conclusions Cardiac involvement appears to be more frequent in children with CCHF disease than in adults, but it is slighter and almost totally reversible; however, the course of the disease in children is milder than it is in adults.

Acute effects of passive smoking on endothelial function.

Impairment of endothelial functions has been shown to occur after acute and chronic exposure to passive smoking (PS), as assessed by flow-mediated dilatation (FMD) of the brachial artery. A total of 61 participants, 30 male and 31 female, mean ages 26 (18-36) were enrolled in the study. All were clinically well and nonsmokers. All participants stayed for 30 minutes in the smoking room. Carbon monoxide (CO) level was 7.42 ± 0.98 ppm (4.71-10.50). Mean carboxyhemoglobin (COHb) levels of participants were significantly elevated after PS. Mean FMD was 18.6% ± 9% and decreased to 12.4% ± 7% after PS (P < .001). In the current study, with more number of participants at lower CO concentrations (7.42 ppm) and with smaller increase in COHb (51%) significant reduction (33%, P < .001) in FMD was observed.

Neutrophil to Lymphocyte Ratio is Predictor of Atrial Fibrillation Recurrence After Cardioversion With Amiodarone

Background: In this study, our aim is to examine the role of the neutrophil to lymphocyte ratio (NLR) in the predictions of recurrence under long-term follow-up in patients whose sinus rhythms (SRs) were restored with amiodarone in acute atrial fibrillation (AF). Methods: Retrospectively, patients with acute AF, which successfully converted to the SR with amiodarone treatment, were recruited into the study. Patients experiencing the first AF attack were enrolled to the study and followed up for 5 years (median 23 months, 25-75 percentiles 12-24 months). Neutrophil to lymphocyte ratio was computed as absolute neutrophil count divided by lymphocyte count. Results: A total of 218 patients were recruited into the study and followed up for 21.6 ± 13.9 months; 87 (40%) patients had ≥1 recurrent AF attack within this period. The follow-up of 131 (60%) patients resulted in persisted SR without any other AF attack. Groups were similar in terms of age and gender. Left atrium (LA) diameter and NLR were increased, and platelet count and lymphocyte count were decreased in patients with AF recurrence in univariate analysis (P < .05 for all). Only LA diameter (for per mm, 1.077 [1.021-1.136], P = .006) and NLR (1.584 [1.197-2.095], P = .001) were independent predictors of AF recurrence in the multivariate analysis. Conclusion: Increased NLR is a marker of increased inflammation and may serve as simple, cheap, and readily available predictors of recurrence in the long-term follow-up of patients admitted with acute AF and successfully converted to SR with amiodarone.

Blood pressure response to exercise is exaggerated in normotensive diabetic patients

Abstract Introduction. The aim of this study was to investigate the blood pressure (BP) response to exercise in normotensive patients with type II diabetes mellitus (DM). Materials and methods. A cross-sectional study was carried out on 75 normotensive subjects with type 2 DM (group 1), and 70 age-gender matched normotensive healthy volunteers (group 2). Treadmill exercise test, 24-h ambulatory BP monitoring (ABPM) were performed for each patients and healthy volunteers. Results. There were 67 patients (mean age 52 ± 9 years and 42% male) in group 1 and 68 healthy volunteers (mean age 51 ± 7 years and 43% male) in group 2. Eight patients from group 1 and 2 subjects from group 2 were excluded because of high BP on ABPM. Groups were similar for systolic BP (SBP) and diastolic BP (DBP) on office measurements and on ABPM. Groups were similar for rest SBP, DBP, heart rate, exercise duration on exercise test. Peak SBP was significantly higher in group 1 than in group 2, but peak DBP was not (196.9 ± 18 vs 165.9 ± 18.6 mmHg, p 0.001; 88.1 ± 11.6 vs 86.2 ± 8.7 mmHg, p = 0.283, respectively). Hypertensive response to exercise (HRE) was more frequent in group 1 than in group 2 [39 (58%) vs 6 (9%), p 0.001]. Independent predictors of peak SBP were DM, office SBP and male gender, while independent predictors of HRE were DM, office SBP and age in multivariate analysis. Conclusions. SBP response to exercise is exaggerated in normotensive diabetic patients compared with non-diabetic subjects. DM, office SBP and male gender are independent predictors of peak SBP. DM, office SBP and age are independent predictors of HRE.

Abnormal Heart Rate Recovery in Stable Heart Failure Patients

Heart rate decrease after exercise, that is associated with reactivation of parasympathetic system, is important, as it is also associated with mortality. Previous studies have shown that this is an independent mortality predictor in patients having no coronary artery disease and having normal left ventricular function. In our study, we aimed to study heart rate recovery (HRR) after exercise in patients having impaired left ventricular function.

Preconditioning, postconditioning, stunning and hibernation: Towards an integrated insight into the mechanisms of hypoperfusion/reperfusion

2006;64:226–33. [12] Mehta S, Giovannucci E, Mugusi FM, et al. Vitamin D status of HIV-infected women and its association with HIV disease progression, anemia, and mortality. PLoS ONE 2010;5:e8770. [13] Mueller NJ, Fux CA, Ledergerber B, et al, Swiss HIV Cohort Study. High prevalence of severe vitamin D deficiency in combined antiretroviral therapy-naive and successfully treated Swiss HIV patients. AIDS 2010;24:1127–34. [14] Bang UC, Shakar SA, HitzMF, et al. Deficiency of 25-hydroxyvitamin D inmale HIVpositive patients: a descriptive cross-sectional study. Scand J Infect Dis 2010;42:306–10. [15] Van Den Bout-Van Den Beukel CJ, Fievez L, Michels M, et al. Vitamin D deficiency among HIV type 1-infected individuals in the Netherlands: effects of antiretroviral therapy. AIDS Res Hum Retroviruses 2008;24:1375–82. [16] MelamedML, Michos ED, PostW, Astor B. 25-hydroxyvitamin D levels and the risk of mortality in the general population. Arch Intern Med 2008;168:1629–37. [17] Giovannucci E, Liu Y, Hollis BW, Rimm EB. 25-hydroxyvitamin D and risk of myocardial infarction in men: a prospective study. Arch Intern Med 2008;168:1174–80. [18] Shewan LG, Coats AJ. Ethics in the authorship and publishing of scientific articles. Int J Cardiol 2010;144:1–2. [19] Coats AJ. Ethical authorship and publishing. Int J Cardiol 2009;131:149–50.

Giant Left Atrium

A 58-year-old woman with a history of mitral valve replacement (MVR) 17 years ago was admitted to our outpatient clinic with shortness of breath and a nonproductive cough. On physical examination, her blood pressure was 90/ 60 mmHg, and heart rate was 122 beats/min. Distended neck veins were noted, basal crepitations were heard in lungs, and there was grade I peripheral edema. A prosthetic valve sound and a grade III pansystolic murmur were present along the left mid-clavicular line. ECG (Cardioline Delta 60 Plus CP/1 version, Remco Italy Cardioline, Milan, Italy) showed atrial fibrillation with a ventricular rate of 110 beats/min. Laboratory evaluation revealed a creatinine level of 1.36 mg/dL (0.4–1.0), an albumin level of 3.8 mg/dL (3.2– 4.8), and pro-brain natriuteric peptide level of 3050 ng/L (12–133). Chest x-ray revealed marked cardiomegaly (Fig. 1). Echocardiographic examination (Vivid 7 pro, GE, Horten, Norway) showed normal functioning MVR with massive biatrial enlargement (left larger than right), moderate mitral regurgitation, severe tricuspid regurgitation, and mildly depressed left ventricular systolic function. The left atrium, measuring 209 9 96 mm, was so large that it was not possible to fit it to the screen in its entirety (Fig. 2). Giant left atrium is a condition in which the left atrial diameter exceeds 65 mm or one that touches the right lateral thoracic wall. This condition is commonly caused by rheumatic mitral disease and malfunctioning replaced mitral valve. Dilatation is the left atrial compensation mechanism due to the chronic pressure overload in mitral stenosis, to balance pulmonary capillary wedge pressure. It may be misdiagnosed as pleural effusion or a mass, so the clinician must be alert to avoid from further invasive examinations like pleurocentesis or biopsy, which may be associated with dangerous complications. References 1. Hurst JW: Memories of patients with giant left atrium. Circulation 2001;104:2630–2631. 2. Akdemir I, Davutoglu V, Aksoy M: Giant left atrium, giant thrombus, and left atrial prolapse in a patient with mitral valve replacement. Echocardiography 2002;19(8):691– 692. Figure 1. Increased cardiothoracic index and left atrial size in x-ray.

Red cell distribution width and hypertensive response to exercise in patients with type 2 diabetes mellitus

Abstract Objective: There is no study about hypertensive response to exercise (HRE), which is a marker of unborn hypertension (HT), and red cell distribution width (RDW) association, in diabetic normotensive patients. So, we aimed to investigate any correlation among RDW and HRE in normotensive type 2 diabetic patients. Methods: Consecutive type 2 diabetic patients without history of HT and with normal blood pressure (BP) on ambulatory BP monitoring were included to the study. We divided the patients into two groups depending on their peak systolic BP on exercise; HRE (Group 1) or normal response to exercise (Group 2). Results: Data of 75 diabetic patients (51.9 ± 9.7) were analyzed (31 male (48%)). Their mean RDW was 13.11 ± 0.46. Patients with HRE were significantly older than patients without HRE. Smoking was more frequent in Group 2. Gender distribution and body mass index were similar between the groups. Else hemoglobin, hematocrit, red blood cell count and RDW values were not significantly different. Office systolic BP and diastolic BP, daytime and 24-h systolic BP were significantly higher in Group 1 but heart rate was similar between the groups. Conclusions: This study revealed that RDW do not differ between diabetic normotensive patients with HRE or not.

Hypertensive response to exercise in dipper and non-dipper normotensive diabetics.

Abstract Non-dipper blood pressure (NDP) as an indicator of autonomic dysfunction could be associated with hypertensive response to exercise (HRE) in diabetic patients. HRE was determined as a predictor of development of unborn hypertension. We aimed to investigate if any correlation among NDP and HRE in normotensive type 2 diabetic patients. A total of 59 consecutive type 2 diabetic patients without history of hypertension and with normal blood pressure (BP) on ambulatory blood pressure monitoring (ABPM) were enrolled to the study. We divided the study population in to two groups depending on their BP on ABPM as dipper (group 1) or non-dipper (group 2). There were 22 patients (mean age 49.5 ± 7 and 10 male) in group 1 and 37 patients (mean age 53.1 ± 10 and 14 male) in group 2. Daytime diastolic and mean BP of dippers and night time systolic and mean BP of non-dippers were significantly higher. HRE was not significantly different between groups (59% vs. 62%, p = 0.820). Hemodynamic parameters during the exercise test were similar. At multivariate linear regression analysis, resting office systolic blood pressure (SBP) (r = 0.611, p < 0.001), male sex (r = 0.266, p = 0.002) and age (r = 0.321, p = 0.010) were independently correlated with peak exercises SBP. Logistic regression analyses identified the resting office SBP (OR 1.191, 95% CI 1.080–1.313; p < 0.001) and age (OR 1.161, 95% CI 1.038–1.298; p = 0.012) were independent predictors of HRE. This study revealed that HRE is not related with non-dipper BP in diabetic patients. This study could inspire to further studies to explore the main reasons of HRE in diabetes mellitus.