background: controlling the hemodynamic situation of patients who have spinal operation is of prime importance, and maintaining the heart rate and blood pressure in normal or low- normal levels in these patients can reduce their bleeding loss. one of the commonly used drugs for this purpose is remifentanil. another sedative-hypnotic-analgesic drug, with acceptable effects is dexmedetomidine. th...

aims: it was aimed to investigate postoperative conformal radiotherapy planning that provides the best target volume and the least dose for critical organs in cancers of stomach. methods: this study was conducted on the ct simulation images of thirty patients diagnosed with gastric cancer. target volumes and the organs at risk were contoured. ap-pa reciprocal parallel field conventional plan an...

BACKGROUND The purpose of this study is to determine the usefulness of exercise treadmill testing (ETT) among asymptomatic persons in predicting coronary heart disease (CHD) events over and above the Framingham CHD risk score. METHODS AND RESULTS Subjects included 3043 members of the Framingham Heart Study offspring cohort without CHD (1431 men and 1612 women; age, 45+/-9 years) who underwent...

In patients with new-onset atrial fibrillation and symptom onset within 48 hours, rhythm control is preferred over rate control if the patient is younger than 65 years. For patients with congestive heart failure, valvular heart disease, hypertension, or permanent atrial fibrillation, rate control remains the favored strategy.

background: controversy persists over the potential benefits/harms of opium consumption in coronary heart disease. this study investigated the association between 12 months' major adverse cardiac events (mace) and pre-procedural opium consumption among patients undergoing percutaneous coronary intervention (pci). methods: retrospectively, 1545 consecutive men who underwent pci between 21 st   j...

conclusions the loss of hrc at the onset of admission may predict mortality in patients with blunt trauma. lower entropy, in recently admitted patients with intra-abdominal bleeding, may indicate laparotomy when the vital signs are stable. background nonlinear analysis of heart rate variability (hrv) has been recently used as a predictor of prognosis in trauma patients. objectives we applied no...

in this paper the main objective is to quantify and compare the instantaneous value of heart rate for normal breathing patterns during meditation and non meditation conditions. this paper involves analysis of variance (anova) technique for the analysis of the heart rate variability patterns during the meditative and non meditative states. the analysis is divided into three stages i.e. data acqu...

ramadan is a holy month for muslims and fasting in this month is the rule for any healthy matured person. nutritional and behavioral changes occurred during ramadan fasting may lead to several physiological change, such as blood pressure (2). studies evaluated the effects of ramadan fasting on blood pressure in hypertensive patients, are scarce and reported inadequate results. in this paper a s...