Journal of Research in Medical Sciences
Volume:19 Issue: 2, Feb 2014

With regard to large number of mobile users especially among college students in Iran, addiction to mobile phone is attracting increasing concern. There is an urgent need for reliable and valid instrument to measure this phenomenon. This study examines validity and reliability of the Persian version of mobile phone addiction scale (MPAIS) in college students. this methodological study was down in Isfahan University of Medical Sciences. One thousand one hundred and eighty students were selected by convenience sampling. The English version of the MPAI questionnaire was translated into Persian with the approach of Jones et al. (Challenges in language, culture, and modality: Translating English measures into American Sign Language.Nurs Res 2006; 55: 75-81). Its reliability was tested by Cronbach’s alpha and its dimensionality validity was evaluated using Pearson correlation coefficients with other measures of mobile phone use and IAT. Construct validity was evaluated using Exploratory subscale analysis. Cronbach’s alpha of 0.86 was obtained for total PMPAS, for subscale1 (eight items) was 0.84, for subscale 2 (five items) was 0.81 and for subscale 3 (two items) was 0.77. There were significantly positive correlations between the score of PMPAS and IAT (r = 0.453, P < 0.001) and other measures of mobile phone use. Principal component subscale analysis yielded a three-subscale structure including: inability to control craving; feeling anxious and lost; mood improvement accounted for 60.57% of total variance. The results of discriminate validity showed that all the item’s correlations with related subscale were greater than 0.5 and correlations with unrelated subscale were less than 0.5. Considering lack of a valid and reliable questionnaire for measuring addiction to the mobile phone, PMPAS could be a suitable instrument for measuring mobile phone addiction in future research.

Parents of children with developmental problems are always bearing a load of stress. The aim of this study is to compare the stress in mothers of children with different disabilities to each other, considering their demographic background. This was a cross-sectional study conducted in Isfahan, Iran during 2012 on 285 mothers of 6-12 years old children with chronic physical disease, psychological disorder, and sensory-motor and mental problems. Abedin’s parenting stress questionnaire was used and obtained data were analyzed using multivariate analysis of variance or covariance as appropriate. Mothers of children with sensory-motor mental and chronic physical problems experience more stress than mothers of children with psychological disorders (P < 0.05). The stress score of mothers of children with psychological disorders was lower than the other two groups. Also there was a significant difference between the score of mothers of children with chronic physical problems and mothers of children with psychological disorders regarding parent-child dysfunctional interaction (P < 0.01). A significant difference was observed in terms of stress among mothers of children with sensory-motor mental problems with different number of children (P < 0.05); also mothers of children with chronic physical problems in different levels of education have experienced different levels of parenting stress (P < 0.05) Due to high level of parenting stress among our studied samples, special education and early intervention are needed for parents in our study population in order to deepening their diagnostic knowledge and professional consultation on stress management.

To assess the endothelial function via noninvasive method, in pregnant women with preeclampsia compared to normotensive pregnant women. Brachial artery diameter was measured via ultrasound, in 28 women with preeclampcia in case group and normotensive pregnant women in control group, at rest, after inflation of sphygmomanometer cuff up to 250-300 mmHg, immediately after deflation of the cuff, 60-90 minutes later and 5 min after administration of sublingual trinitroglycerin (TNG). Results of these measurements as well as demographic characteristics of participants in both groups were recorded in special forms. Data were analyzed via Statistical Package for Social Sciences (SPSS), using t-test and repeated measures analysis of variance (ANOVA). P-value < 0.05 was considered statistically significant. The results were presented as mean ± standard deviation (SD). The mean of brachial artery diameter at rest in the case and control groups was 4.49 ± 0.39 and 4.08 ± 0.38 mm, respectively (P = 0.1). Also the results showed that the brachial artery diameter, immediately after deflation of the cuff, was 4.84 ± 0.4 and 4.37 ± 0.30 mm in the case and control groups (P < 0.001), respectively. The mean brachial artery diameter, 60-90 s after deflation of the cuff, was 4.82 ± 0.41 and 4.42 ± 0.38 mm in the case and control groups (P < 0.00), respectively. The brachial artery diameter, 5 min after sublingual NO administration, was 4.95 ± 0.6 and 4.40 ± 0.45 mm in case and control groups (P < 0.001), respectively. Applying of repeated measures ANOVA showed that the mean difference between case and control groups was statistically significant (P < 0.001). Current study concluded that there is no difference in endothelium-dependent vasodilation between women with preeclampsia and pregnant women with normal blood pressure.

Conducted researches show that psychological factors may have a very important role in the etiology, continuity and consequences of coronary heart diseases. This study has drawn the psychological risk and protective factors and their effects in patients with coronary heart diseases (CHD) in a structural model. It aims to determine the structural relations betweenpsychological risk and protective factors with quality of life in patients with coronary heart disease. The present cross-sectional and correlational studies were conducted using structural equation modeling. The study sample included 398 patients of coronary heart disease in the university referral Hospital, as well as other city health care centers in Isfahan city. They were selected based on random sampling method. Then, in case, they were executed the following questionnaires: Coping with stressful situations (CISS- 21), life orientation (LOT-10), general self-efficacy (GSE-10), depression, anxiety and stress (DASS-21), perceived stress (PSS-14), multidimensional social support (MSPSS-12), alexithymia (TAS-20), spiritual intelligence (SQ-23) and quality of life (WHOQOL-26). The results showed that protective and risk factors could affect the quality of life in patients with CHD with factor loadings of 0.35 and −0.60, respectively. Moreover, based on the values of the framework of the model such as relative chi-square (CMIN/DF = 3.25), the Comparative Fit Index (CFI = 0.93), the Parsimony Comparative Fit Index (PCFI = 0.68), the Root Mean Square Error of Approximation (RMSEA = 0.07) and details of the model (significance of the relationships) it has been confirmed that the psychocardiological structural model of the study is the good fitting model. This study was among the first to research the different psychological risk and protective factors of coronary heart diseases in the form of a structural model. The results of this study have emphasized the necessity of noticing the psychological factors in primary prevention by preventive programs and in secondary prevention by rehabilitation centers to improve the quality of life of the people with heart diseases.

Statins have anti-inflammatory effects in patients with chronic obstructive pulmonary disease (COPD). This study designed to evaluate the effects of atorvastatin on serum highly sensitive C-reactive protein (hs-CRP) and pulmonary function in sulfur mustard exposed patients with COPD. Fifty patients with chronic obstructive pulmonary disease due to sulfur mustard and high serum hs-CRP entered in this study. Participants were randomized to receive 40 mg atorvastatin or placebo in a double-blind clinical trial. Forty-five patients completed the study (n = 23 atorvastatin and n = 22 placebo). Pulse oximetry (SpO2), pulmonary function test (PFT), and 6 min walk distance test (6MWD) was measured. COPD assessment test (CAT) and St.George’s respiratory questionnaire (SGRQ) were also completed by patients at the beginning of trial and after 9 weeks of prescription of 40 mg/day atorvastatin or placebo. At fourth week, SpO2, PFT, and 6MWD were again measured. After 9 weeks serum hs-CRP was re-measured. There was no significant difference between atorvastatin and the placebo group in SpO2, FEV1, and 6MWD after fourth week (P = 0.79, P = 0.12, P = 0.12, respectively). The difference between baseline and ninth week was calculated for two groups of trial and control in term of serum hs-CRP, SpO2, FEV1, and 6MWD. Significant improvement was not observed between two groups in above mentioned variables (P = 0.35, P = 0.28, P = 0.94, P = 0.43, respectively). However, the quality of life was improved by administration of atorvastatin using the CAT score (P < 0.001) and SGRQ total score (P = 0.004). Atorvastatin does not alter serum hs-CRP and lung functions but may improve quality of life in SM-injured patients with COPD.

Considering the dramatic increasing rate of diabetes and consequently its related complications, most importantly diabetic peripheral neuropathy (DPN), challenges regarding proper treatment of DPN and its effect on the quality-of-life and care of diabetic patients, the aim of this current study is to evaluate the effect of intradermal botulinum toxin type A (BTX-A) injections on pain symptoms of patients with diabetic neuropathic pain. In this randomized double-blind placebo controlled clinical trial study, diabetic patients aged

The adipose tissue is deemed as an ideal source of adipose-derived stem cells (ADSCs). Previous studies have reported that ADSCs can be isolated from several organs and locations; however, slight attention has been paid to the breast. We would like to report our experiences in isolating breast ADSCs (bADSCs). Adipose tissues were harvested from the breasts of seven hypertrophic breast patients. Collagenase I was used to isolate the primary ADSCs. Surface markers were analyzed by flowcytometry. Cellular morphologies were observed. Proliferations of different passages were compared. Viabilities after the cryopreservation were evaluated. Adipogenic and osteogenic differentiation was induced. Primary cultured cells showed morphologies similar to fibroblasts, and expressed surface markers including CD13, CD44, CD90, and CD105. There was no statistical difference of proliferation between different passages (P > 0.05) and between with and without cryopreservation (P > 0.05). Additionally, isolated cells were differentiated into adipocytes and osteoblasts. bADSCs may represent an alternative candidate for tissue engineering. Further studies are needed to obtain more comprehensive understanding on bADSCs.

Although giant cell tumor (GCT) is considered to be a primary benign bone tumor, its aggressive behavior makes its diagnosis and treatment, difficult and challenging. This is especially true in distal radius where GCT appears to be more aggressive and difficult to control locally. We report our clinical outcome of en-block resection and reconstruction with non-vascularized fibular autograft in 15 patients with distal radius GCT. We retrospectively reviewed 15 patients with GCT (Grade 2 and 3) of distal radius who were treated with en-block resection and non-vascularized fibular autograft. Five of 15 were recurrent GCT treated initially with extended curettage; local adjuvant therapy and filling the cavity with cement or bone graft. We followed the patients for mean 7.2 years post operation (range: 4-11 years). Patients were evaluated post operation with clinical examination, plain radiography of distal radius and chest X-ray and/or computed tomography scan. Furthermore pain, function, range of motion and grip strength of the affected limb were evaluated and mMayo wrist score was assessed. A total of 11 patients were women and 4 were men. Mean age of patients was 29 years (range: 19-48). We had no lung metastasis and bony recurrence occurred in one patient (6.6%). Nearly 53.3% of patients had excellent or good functional wrist score, 80% of the patients were free of pain or had only occasional pain and 80% of patients returned to work. Mean range of motion of the wrist was 77° of fl exion-extension and mean grip strength was 70% of the normal hand. En-block resection of distal radius GCT and reconstruction with nonvascularized fibular autograft is an effective technique for treatment in local control of the tumor and preserving function of the limb.

Opiate is used in patient-controlled intravenous analgesia pumps (PCIA) for controlling pain in post-surgical patients.Other drugs are remarkably added to opioid pumps to enhance quality, lengthen analgesia, and reduce side effects. Lidocaine, a local anesthetic which inhibits sodium channels, has anesthetic and analgesic effects when injected locally or intravenously. The objective of this study is to evaluate the analgesic effects of adding lidocaine 1% to different doses of morphine via IV pump to patient-controlled analgesia (PCA) after orthopedic surgeries. In a randomized clinical trial, 60 patients who had undergone orthopedic surgery of lower extremities were divided into three equal groups to control postoperative pain. Intravenous pump with 5 ml/h flow rate was used as the analgesic method. The solution consisted of lidocaine 1% plus 20 mg morphine for the first group, lidocaine 1% plus 10 mg morphine for the second group, and only 20 mg morphine for the third group (control group). Patients were checked every 12 h, and Visual Analog Scale (VAS), extra opioid doses, nausea/vomiting, and sedation scale were examined. Pain score was lower in the fi rst group compared to the other two groups. Mean VAS was 2.15 ± 0.2, 2.75 ± 0.2, and 2 ± 0.25 on the first day and 1.88 ± 0.1, 2.74 ± 0.3, and 2.40 ± 0.3 on the second day, respectively, in the three groups and the difference was statistically significant (P < 0.01)

Pulmonary function tests (PFTs) are used in assessing physiological to clinical status of the respiratory system, which is expressed as a percentage of predicted values. Predicted PFTs values are varies in different ethnics. Predicted PFTs values were studied in a sample of Iranian children. Prediction equations for PFTs were derived from urban children in the city of Mashhad (northeast Iran). Regression analysis using height and age as independent variables was applied to provide predicted values for both sexes. PFT values were measured in 414 healthy children (192 boy and 222 female, aged 4-10 years). Forced vital capacity (FVC), forced expiratory volume in one second (FEV1), maximal mid-expiratory flow (MMEF), peak expiratory flow (PEF), MEF at 75%, 50% and 25% of the FVC (MEF75, MEF50 and MEF25 respectively) were measured. There were positive correlations between each pulmonary function variable with height and age. The largest positive correlations were found for FVC (r = 0.712, P < 0.0001) and FEV1(r = 0.642, P < 0.0001) in boys and girls respectively with height and for PEF (0.698,P < 0.0001) and MEF (r = 0.624, P < 0.0001) with age. Comparison of PFTs derived from the equations of the present study showed significant differences with those of several previous studies (P < 0.001 for most cases). A set of PFT reference values and prediction equations for both sexes has been derived using relatively large, healthy, Iranian children for the first time, which the generated results were differ from several prediction equations.

Coronary computed tomography angiography (CCTA) is a well-known method for evaluating anatomic coronary stenosis, but the reliability of CCTA to predict cardiovascular events is an issue of controversy. In this prospective observational study, 58 patients with acute chest pain and low-to-moderate risk were selected and CCTA was performed on them. During follow up, the occurrence of major adverse cardiac events (MACE), defined as, cardiac death, myocardial infarction or coronary revascularization, were evaluated. Sensitivity, specificity, and positive and negative predictive values of CCTA for the occurrence of MACE, at the six-month follow up, were also evaluated. A total of nine (15.5 %) were positive in terms of the MACE criteria and they all had positive CCTA results. It seemed that there was 100% sensitivity for CCTA in predicting the occurrence of MACE. Forty-nine patients had no MACE, among whom 48 patients had negative CCTA. The specificity of CCTA in predicting the occurrence of MACE was 98%. All patients with positive CCTA showed significant stenosis in angiography. It appears that CCTA allows us to predict the prognosis of patients with acute chest pain and low-to moderate-risk in terms of MACE occurrence.

Snakebite in Iran has been a health concern. However, management of snakebite is not standardized and varies from center to center. This study is aimed at devising an evidence-based comprehensive protocol for snakebite management in Iran, to reduce unnecessary variations in practice. A narrative search in electronic databases was performed. Fifty peer-reviewed articles, guidelines, and textbooks were reviewed and practical details were extracted. Our currently used protocol in the Mashhad Toxicology Center was supplemented with this information. Consequently an improved wide-range protocol was developed. The protocol was then discussed and amended within a focus group comprised of medical toxicologists and internal medicine specialists. The amended version was finally discussed with expert physicians specialized in different areas of medicine, to be optimized by supplementing other specific considerations. During a one-year process, the protocol was finalized. The final version of the protocol, which was designed in six steps, comprised of three components: A schematic algorithm, a severity grading scale, and instructions for supportive and adjunctive treatments. The algorithm pertains to both Viperidae and Elapidae snakebite envenomations and consists of a planned course of action and dosing of antivenom, based on the severity of the envenomation. Snakebite envenomation is a clinical toxicologic emergency, which needs to be treated in a timely and organized manner. Hence, a multi-aspect protocol was designed to improve the clinical outcomes, reduce unnecessary administration of antivenom, and help physicians make more proper clinical judgments.

It is well-known that deficiency or over exposure to various elements has noticeable effects on human health. The effect of an element is determined by several characteristics, including absorption, metabolism, and degree of interaction with physiological processes. Iron is an essential element for almost all living organisms as it participates in a wide variety of metabolic processes, including oxygen transport, DNA synthesis, and electron transport. However, as iron can form free radicals, its concentration in body tissues must be tightly regulated because in excessive amounts, it can lead to tissue damage. Disorders of iron metabolism are among the most common diseases of humans and encompass a broad spectrum of diseases with diverse clinical manifestations, ranging from anemia to iron overload, and possibly to neurodegenerative diseases. In this review, we discuss the latest progress in studies of iron metabolism and bioavailability, and our current understanding of human iron requirement and consequences and causes of iron deficiency. Finally, we discuss strategies for prevention of iron deficiency.

Hemophagocytic syndrome (HPS) is an uncommon manifestation in systemic lupus erythematosus (SLE). Clinical features of HPS include fever, pancytopenia, abnormal liver enzyme, hepatosplenomegaly, lymphadenopathy, and coagulation disorder. HPS comprises primary and reactive forms. Herein, we describe a case of untreated SLE with HPS as one of the first manifestations of systemic Lupus.

Bone marrow abnormalities in HIV infected adults include hypocellularity, myelodysplasia and poor marrow recovery. Data in children is limited. We report a series of three HIV infected with varied bone marrow abnormalities. First child was a 7-year-old boy with pulmonary tuberculosis, anemia, thrombocytopenia and bone marrow examination showed hypoplastic marrow. He succumbed to his disease within seven days of hospitalization. Second child was a three and a half year old girl who had severe anemia and her bone marrow examination showed dyserythropoiesis. Third child was a 7-year-old boy who had splenic abscesses and pancytopenia and bone marrow examination showed myelofibrosis with increased plasma cells. He also succumbed due to a fatal pulmonary bleed. Thus, advanced HIV disease in children can lead to bone marrow suppression in form of hypoplasia or myelofibrosis which can be fatal.

Tuberculosis (TB) is still a major worldwide concern. There is no pathognomonic clinical feature or imaging findings for definite diagnosis of extra pulmonary TB. Therefore, TB involvement of Gastrointestinal or Genitourinary tract can be easily confused with peritoneal carcinomatosis and advanced ovarian carcinoma. Our aim is to emphasize the importance of considering the disease based upon the epidemiologic clues of the patients, while interpreting the positive results for a suspicious ovarian malignancy. Cases: This paper illustrates 8 cases of ovarian or peritoneal tuberculosis, whose initial diagnoses were malignant processes of the GU tract. Tuberculosis (TB) should be always being considered in the differential diagnosis of advanced ovarian cancer,especially in the regions that are endemic for the disease.

This study describes a rare case of Human Immunodeficiency Virus and Human Herpes Virus 8 (HHV-8) negative primary effusion lymphoma (PEL)-like lymphoma in a patient with hepatitis B virus-related liver cirrhosis, diagnosed in a 66-year-old male who rapidly progressed to a sense of abdominal fullness. Cytological analysis of the pleural effusion demonstrated large atypical lymphoid cells with rounded nuclei, prominent nucleoli, and abundant cytoplasm. Immunocytochemistry of the pleural effusion detected atypical CD20+ lymphoid cells. The patient was hospitalized, and died following sepsis and multi-organ failure. Our case highlights that HHV-8-unrelated PEL-like lymphoma patients have different pathogenetic mechanisms of causality at the biological level,immunophenotype, clinical behavior, and prognosis.

Acute appendicitis secondary to hernia incarceration presenting as scrotal swelling is exceptionally rare in neonates. We report a neonate who presented with tender swelling in the right scrotum. Ultrasonography detected features of a rare Amyand’s hernia.Surgical exploration and histopathological examination confirmed the diagnosis.