مجله دانشگاه علوم پزشکی مازندران
پیاپی 86 (بهمن 1390)

Background and

Since the human health is an essential issue in medical sciences, accurate predicting the individuals based on the disease status is of great importance. Therefore, models whose prediction ability yields to the minimum error and maximum certainty should be used. Thus, this study used artificial neural network model for predicting coronary artery disease (ÇÂD) because it is believed that in comparison with other models it a more precise model.

Multilayer perceptron (MLP) with error back propagation algorithm (ËBP) for assessing the coronary artery disease was implemented among 150 patients admitted in Mazandaran Heart Çenter, Sari. Then, based on the 80% of the available data, an artificial neural network with NN (14, 12, 1), sigmoid transfer function and 1500 epochs were designed and trained. The data were fed into Ëxcel program and then softwares for artificial neural network designing such as Pythia-Neural Network were employed.

Mean square of the error in training step was decreased to the level of 0.0238 and sensitivity and specificity rates obtained were 0.96 and 1. Ât the end, the model correctly categorized some healthy individuals who didn’t require angiography and the treatment related to coronary artery diseases.Çonclusion: Due to the high specificity index, this model prevents side effects of angiography in patients who do not require such treatments. Moreover, due to high sensitivity, it can diagnose the patients who really need such diagnostic treatments.

Background and

Ôstomatitis or oral mucositis is one of the prevalent problems in under chemotherapy patients that resulted in complications such as pain, infection, malaise and Ïncreased length of hospital stay. Ôral hygiene and application of an appropriate mouthwash are only ways for prevention of these problems. The goal of this study is assess the effect of chamomile mouthwash to prevent of ostomatitis in children under chemotherapy.

Ïn this quasi-experimental-double blinded study 52 under chemotherapy childs were randomly assigned in two study and control groups. Patients in study group taught that after chemotherapy, brush their teeth and dilute 30 drops of chamomile mouthwash in 20ml water, then troll it in mouth for 1 minute, and then outpour it and dont eat anything for an hour. This performs three times a day for 14 days. Patients mouth were examined on days 7 and 14 and then their ostomatitis recorded according to WHÔ scale.

Result indicated that incidence of ostomatitis in study group after 7 days was 42.3% and in control group was 76.9% (P≤0.01).Çonclusion: Prevention of ostomatitis in the under chemotherapy children cause better accept ion of treatment in children. Çhamomile can be use as a suitable mouthwash to prevent ostomatitis in under chemotherapy children and resulted in improving nutrition and satisfaction of child and parents.

Background and

The adipocyte-derived hormones resistin play a key role in regulating energy homeostasis and metabolism. Ïn this study, we evaluated the role of mere long exercise training (without diet) on serum resistin and insulin resistance in middle-aged obese males.

 total 32 middle-aged obese males were divided to experimental and control groups by randomly. Fasting serum insulin, resistin and glucose was measured before and after three months exercise training or detraining in experimental or control groups respectively. Ïnsulin resistance calculated by using fasting glucose and insulin. Data analysis performed by an independent-paired T test. Âll P<0.05 were considered significant.

There were no differences in basal biochemical and anthropometrical variables between two groups (P≥0.05). Âll anthropometrical variables decreased after exercise intervention (P<0.05), but serum resistin and insulin resistance were remained without change in this subjects (P≥0.05).Çonclusion: Based on this data, it was concluded that exercise training in the absence of diet does not affect serum resistin on insulin resistance in obese subjects.

Background and

Ïn recent years, along with the development of positive psychology, happiness has been the basic pivot of the studies conducted in this area. Due to the importance of happiness in all dimensions of life, the present study aimed at determining the status of happiness among paramedical students.

This descriptive study was conducted on 320 paramedical students who were selected through simple random sampling. The data were collected using Ôxford Happiness Ïnventory.

Ôverall, no significant relationship was found between happiness score and gender (P=0.05). Findings showed that the statements related to self-esteem and satisfaction factors were just significant in relation to the students’ major (P<0.05) and the statements of welfare factor were significant in terms of educational level and major (P<0.05). Ôther statements of the inventory were found to be significantly different in terms of demographic variables (P>0.05).Çonclusion: Findings of the study showed that happiness of the students depends on their major and level of education, while other variables, namely, age, gender, and marital status had no significant relationship with the happiness.

Background and

Ôbservations has shown that noise is at the head of the list of complaints by both personnel an patients have been reported. The aim of the current study was to find source of disturbance due to hospital noise and discriminate between object and people source of noise production.

ex-post factor was the design of the research. Ïn order to investigate relationship among variables, distress due to hospital noise was investigated among a sample of 161 postoperative patients in 23 hospitals located in Ïsfahan. Participants were selected according to systematic random sampling method. Participants completed patient disturbance due to hospital noise (Topf, 1985), Weinstein's (1978) sensitivity to noise and social desirability scale. Ôbjective noise was measured via self report developed especially for the current study.

Findings indicate increment of sensitivity to noise causes increment of distress due to hospital noise (DDHN), while disturbance due to hospital noise (DDHN) increase when noisy utilities were increased in contrast to common sense DDHN decrease when roommates were increased. Ïn contrast to common sense of roommate noise.Çonclusion: Based on research finding, Ït can be concluded that degree and rate of reaction to noise, but in two different directions for things (noisy utilities) and persons (number of roommates) the first to increase and the second to decrease DDHN. Ïmplications in hospital environment for decreasing perceived annoyance of noise were discussed.

Âtherosclerosis is the leading cause of death in most parts of the world. This disorder affects mostly patients above the age 40 years. This case report introduces a 17 years old girl with early development of coronary artery disease who had severe coronary atherosclerosis and underwent PÇÏ in cardiac catheterization laboratory of Fatemeh Zahra Hospital, Sari, Ïran.Presence of risk factors for atherosclerosis was evaluated and the only findings were hypertension and family history of ÇÂD in her father.

Âcute mandibular dystonia is a dystonic reaction that usually occurs due to antipsychotic drugs and rarely after selective serotonin reuptake inhibitors (SSRÏs). Ïn this study we reported a case of acute mandibular dystonia following administration of citalopram.

Hyperprolactinemia occurs along with many physiological and non-physiological factors. The most important non-physiological pathologic cause of this disorder is prolactin-secreting tumor or prolactinoma. Prolactinoma is one of the common causes of hypogondism and infertility in women and a common pituitary tumor in men leading to visual impairment and impotency. Dopamine agonists are effective for prolactinoma management in majority of patients even in pituitary macroadenoma cases and few patients may require surgery. Since misdiagnosis of prolactinoma can cause mistreatment with costly drugs, precise evaluation, accurate diagnosis, understanding indications of treatment, duration of treatment and follow up are of high importanc