[Decreased Heart Rate Variability in Sickle Cell Anemia as Effect of Pulmonary Arterial Hypertension].

Decreased heart rate variability (HRV) is associated with increased mortality risk in various diseases. The objective of this investigation:to study HRV in patients with sickle cell anemia (SCA) and to assess the effect of pulmonary arterial hypertension (PAH) on HRV in these patients. Materials and methods.

A randomized controlled study evaluating the effects of the temperature of insufflated CO2 on core body temperature and blood gases (an experimental study).

Background: Heated carbon dioxide (CO2) was used for pneumoperitoneum (Pp) to prevent hypothermia. This study aimed to investigate the relationship between the temperature of the insufflated CO2 and blood gases together with the core body temperature (CBT).

Methods: A prospective controlled study was performed with 24 pigs weighing approximately 20 kg randomized into four groups of 6 pigs each.

Increased QT dispersion in sickle cell disease: effect of pulmonary hypertension.

Background: QT dispersion has been proposed to be a predictor of adverse outcomes in a variety of cardiac disease states. The objective of this study was to examine QT dispersion in patients with sickle cell disease (SCD) and to assess the effect of pulmonary hypertension (PHT) on QT dispersion.

Methods: We performed Doppler echocardiographic assessments of pulmonary artery systolic pressure in 73 (mean age 18.

Subclinical left ventricular dysfunction in multiple sclerosis.

Objectives: To investigate the left (LV) and right ventricular (RV) function in multiple sclerosis (MS) using standard echocardiography and Doppler tissue imaging (DTI).

Materials And Methods: A total of 41 patients with definite MS and 32 healthy controls were included in the study.

Results: LV end-systolic dimension was increased and LV ejection fraction was decreased in MS patients compared with controls (P < 0.

Right ventricular and pulmonary function in sickle cell disease patients with pulmonary hypertension.

The effects of sickle cell disease (SCD) on right ventricular (RV) and pulmonary function in SCD patients with pulmonary hypertension is not well-known. The aim of this study was to investigate RV and pulmonary functions in patients suffering from SCD with or without pulmonary hypertension using color tissue Doppler imaging and spirometry. We evaluated 48 asymptomatic patients with SCD.

Right ventricular diastolic abnormalities in rheumatoid arthritis and its relationship with left ventricular and pulmonary involvement. A tissue Doppler echocardiographic study.

Objectives: To investigate right ventricular diastolic function in rheumatoid arthritis (RA) and its relationship with left ventricular and pulmonary involvement.

Methods: Thirty-five RA patients and 30 healthy subjects were submitted to conventional Doppler (CE) and tissue Doppler echocardiography (TDE) to assess left and right systolic and diastolic function and to estimate maximal arterial systolic pulmonary pressure (PAP). To detect pulmonary involvement, pulmonary function tests and high-resolution computed tomography (HRCT) scans were performed in all RA patients.

[The effect of left ventricular geometry on myocardial performance index in hypertensive patients].

Objective: The aim of this study was to investigate the relationship between the myocardial performance index (MPI) and left ventricular (LV) geometry in hypertensive patients.

Methods: The MPI, which is a marker of systolic and diastolic ventricular function, was measured in 64 hypertensive patients and in 15 healthy persons (Control). According to the value of relative wall thickness (RWT) and LV mass index (LVMI), hypertensive patients were subdivided into four groups: normal (N), 17 patients (26.