Zohreh Nozarian; Alireza Abdollahi
Abstract
Background and Objectives: Urinary tract infections (UTI) are one of the most common infectious diseases with different microbial agent and antimicrobial resistant pattern in hospitalized patients and outpatients. In order to assess the adequacy of therapy, knowledge of prevalence and resistance pattern ...
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Background and Objectives: Urinary tract infections (UTI) are one of the most common infectious diseases with different microbial agent and antimicrobial resistant pattern in hospitalized patients and outpatients. In order to assess the adequacy of therapy, knowledge of prevalence and resistance pattern of the bacteria is necessary. The main aim of this study was to evaluate the prevalence and the antimicrobial resistance pattern of main bacterial responsible for UTI in order to establish an appropriate empirical therapy. Methods: All urine samples were referred to Imam Hospital Laboratory, Tehran, Iran during 2011-2012, urine culture isolated and bacteria were identified and the profile of antibiotic susceptibility was characterized. Result: From 1851 urine cultures, UTI was more frequent in woman (68%) E. coli was as usual the most common pathogen implicated in UTI. Most susceptibility was to imipenem (98.9%). nitroforantoin (96%) and amikacin (94.1%) and increased resistance to penicillin (66.6%), nalidixic acid (62.1%) ampicilin (60.1%) and cotrimoxazole 54.3%. Discussion: The most common isolated pathogen was E. coli. According to antibiogram susceptibility, the recommended antimicrobial drugs are nitroforantoin and imipenem. nalidixic acid and cotrimoxazole are not recommended because drug resistance is high.
Alireza Abdollahi
Volume 9, Issue 3 , July 2014, , Pages 167-180
Abstract
Plasmapheresis, which is defined as the removal of plasma, can be either "adjusted plasma" or “exchange of plasma”. The former is defined as selective withdrawal of certain (un)-pathological plasma components in different ways such as perfusion and then returning the remained donor plasma ...
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Plasmapheresis, which is defined as the removal of plasma, can be either "adjusted plasma" or “exchange of plasma”. The former is defined as selective withdrawal of certain (un)-pathological plasma components in different ways such as perfusion and then returning the remained donor plasma to him, the latter is non-selective removal of all components of plasma to provide blood products for injection into patients or to be used as the input of blood transfusion refinery or to remove the pathogen contained plasma before compensating for the volume losses with an equal volume of plasma or more commonly, replacing plasma with a substitute fluid (colloid or crystalloid) such as albumin. Plasmapheresis was divided generally into two groups:
1- Plasma products by donor plasmapheresis
2- Therapeutic plasmapheresis
Therapeutic plasma exchange or TPE are often attributed to plasma that exit from the body of patient then compensated by any kind of replacement fluid volumes to support neurmolemic situation of patients. Plasmapheresis is currently used as a therapeutic modality in a wide array of conditions. Generally, plasmapheresis is used when a substance in the plasma, such as immunoglobulin, is acutely toxic and can be efficiently removed. Myriad conditions fall under this category, including neurologic, hematologic, metabolic, dermatologic, rheumatologic, and renal diseases, as well as intoxications, that can be treated with plasmapheresis.
Fatemeh Nili; Reza Shahsiah; Farid Azmoudeh Ardalan; Mohsen Nassiri Toosi; Alireza Abdollahi
Volume 9, Issue 1 , January 2014, , Pages 17-22
Abstract
Background and Objectives: HBV DNA monitoring is important in management of chronic viral hepatitis B infection. HBV DNA measurements are carried out over period of months to years. So the analytical system must be stable and reproducible. The aim of this study was to determine the performance ...
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Background and Objectives: HBV DNA monitoring is important in management of chronic viral hepatitis B infection. HBV DNA measurements are carried out over period of months to years. So the analytical system must be stable and reproducible. The aim of this study was to determine the performance characteristics and to plan a statistical quality control system of a laboratory-developed real-time quantitative PCR assay for HBV DNA quantification. Methods: Values of systematic and random error at two clinical decision points;4.2 Log IU/mL (20000 IU/mL) and 3.2 Log IU/mL (2000 IU/mL) were determined. Candidate quality control procedures were selected and performance of the method by application of normalized operational process specification (OPSpecs) charts was determined. Results: The performance of the assay at level of 4.2 Log IU/mL and 3.2 Log IU/mL were excellent and good respectively. Moreover, a13.5S rule with two measurements offered 90% probability of error detection at level of 4.2 Log IU/mL, while no rule offered 90% probability of error detection at level of 3.2 Log IU/mL. Conclusion: Minimizing the formation of primer-dimer and nonspecific products and concentrating the target DNA during the purification process are proposed for accurate quantitative PCR particularly when CT values are high.
Alireza Abdollahi; Saeed Shoar; Hiva Saffar; Hana saffar; Azita Yazdi
Volume 9, Issue 1 , January 2014, , Pages 38-44
Abstract
Background and Objectives:Infection of pleural fluid is a common disease and because of antibiotic administration, the microbiology of this fluid has changed. The aim of this study was to determine the common bacteria and suitable antibiotics for treatment in pleural effusion (PE).
Materials ...
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Background and Objectives:Infection of pleural fluid is a common disease and because of antibiotic administration, the microbiology of this fluid has changed. The aim of this study was to determine the common bacteria and suitable antibiotics for treatment in pleural effusion (PE).
Materials and Methods: In this cross sectional study, 1210 samples with exudative features were cultured for possible growth of microbial pathogens and then examined for antibiotics sensitivity. Samples’ characteristics were then analyzed according to the age and sex difference.
Results: Among 1210 exudative pleural effusions, 38.2% were obtained from females and 61.8% from males. Of 142 pleural fluid samples, 11.7% had a positive culture. Aerobic gram negative organism was the most common type among the other samples with a prevalence of 52% followed by aerobic gram positive (25.3%), non- aerobic gram negative (15.7%), non- aerobic gram positive (6.2%) and fungi (0.8%). E. coli, Staphylococcus Aureus and Acinetobacter baumannii were the most common types of organism among adult population.
Conclusion:Aerobic gram positive bacteria had the highest prevalence among the pathogens, and cephalosporins, aminopenicillins and β-lactams were the most effective antibiotics for their treatment.
Alireza Abdollahi; Sara Sheikhbahaei; Somaye Safinejad; Issa Jahanzad
Volume 8, Issue 3 , July 2013, , Pages 147-152
Abstract
Background and Objectives: The most prevalent malignancy among women is known to be breast cancer (BC). Several factors contribute to determining tumor prognosis and treatment strategies. In this study, the frequency and relevance of these factors are discussed.
Materials and Methods: This cross-sectional ...
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Background and Objectives: The most prevalent malignancy among women is known to be breast cancer (BC). Several factors contribute to determining tumor prognosis and treatment strategies. In this study, the frequency and relevance of these factors are discussed.
Materials and Methods: This cross-sectional study was carried out on 214 patients with BC, who referred to the Cancer Institute of Imam Hospital complex, Tehran, Iran in 2010 and 2011. The data about biomarkers (ER, PR, P53, HER-2) status and clinic pathologic features were extracted from patients files.
Results: Invasive ductal carcinoma (90.7%) was the most common pathology of BC. The frequency of estrogen receptor (ER), progesterone receptor (PR), P53 and HER2 was estimated as 63.6%, 58.9%, 37.4% and 21.9% respectively. None of these markers had significant relationship with age, tumor size, tumor pathology, vascular invasion, calcification, nipple invasion, benign component, skin invasion and mitosis. Between low grade histology of tumor and ER, PR significant positive relationship was found (P=0.001). Lymph node involvement was positively associated with P53 expression. A positive relationship found between ER and PR (P=0.001). Both P53 and HER-2 inversely correlate with ER, PR (P=0.001). HER2 and P53 had no significant relationship.
Conclusion: We found a significantly higher PR(+), ER(+) expression in low grade tumors. Although P53 and HER2 expressions were not found to be correlated with tumor grade, P53 expression was associated with poorer prognosis due to higher lymph node involvement and perineural invasion.
Afsaneh Rajabiani1; Fatemeh Kamrani Kanafi; Naser Kamalian; Saeed Shoar; Alireza Abdollahi; Sara Sheikhbahaei
Volume 8, Issue 3 , July 2013, , Pages 189-193
Abstract
Salivary gland tumors accounts for less than 1% of all tumors. Minor salivary gland tumors (MSGTs) are uncommon and make up about 10% of all salivary gland neoplasms. The clinical and histopathological distribution ...
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Salivary gland tumors accounts for less than 1% of all tumors. Minor salivary gland tumors (MSGTs) are uncommon and make up about 10% of all salivary gland neoplasms. The clinical and histopathological distribution of these tumors vary geographically. A case of a 38 yr old man with a minor salivary gland mass at chin region isreported here. The tumor invaded into the anterior surface of the mandible bone and the surrounding soft tissues. The tumor was resected completely with a safe surgical margin of soft tissue and adjacent bone. Histologically, the tumor is characterized by a biphasic pattern, composed of admixture of epithelial and stromal components, associated with cytological atypia and prominent mitoses. The stromal elements are myxoid, chondroid, and osteoid. The chondroid component is more abundant and shows more atypical changes. Overall, the findings were interpreted as malignant pleomorphic adenoma of minor salivary glands of buccal mucosa.
Alireza Abdollahi; Saeed Shoar; Sara Sheikhbahaei; Siroos Jafari
Volume 8, Issue 2 , April 2013, , Pages 81-88
Abstract
Background and Objective: Opportunistic infections are the leading cause of death among patients subjected to the human immunodeficiency virus (HIV) infection and acquired immune deficiency syndrome (AIDS). The aim of this study was to compare the seroprevalence of Cytomegalovirus (CMV) and toxoplasmosis ...
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Background and Objective: Opportunistic infections are the leading cause of death among patients subjected to the human immunodeficiency virus (HIV) infection and acquired immune deficiency syndrome (AIDS). The aim of this study was to compare the seroprevalence of Cytomegalovirus (CMV) and toxoplasmosis infection in newly diagnosed HIV infected patients with healthy controls and it’s correlation with CD4+ cell counts (CD4+).
Materials and Methods: A case controlled study was carried out to investigate CMV and toxoplasmosis serology among newly diagnosed HIV infected patients referred to University affiliated hospital in Tehran and compared them to healthy subjects as control. A total of 100 HIV positive patients and 100 healthy controls were recruited. Clinical characteristics and CD4+ cell counts were evaluated. The statistical package SPSS 17 for windows was used for analysis.
Results: Patients with HIV infection had a significantly higher positive serology for CMV than healthy controls (100% vs. 93% P<0.05). There was no significant difference between HIV positive and HIV negative patients in terms of toxoplasmosis serology. There was no significant difference between males and females with respect to CMV or toxoplasmosis serology.
Conclusion: CMV and toxoplasmosis infection are highly prevalent among HIV infected patients and also healthy controls, with a higher seropositive rate of CMV in HIV cases.
Fatemeh Fattahi; Alireza Mirvaghefi; Hamid Farahmand; Gholamreza Rafiee; Alireza Abdollahi
Volume 8, Issue 1 , January 2013, , Pages 36-44
Abstract
Objectives: The presence of E.coli in fish intended for human consumption may constitute a potential danger, not only in causing disease, but also because of the possible transfer of antibiotic resistance from aquatic bacteria to those infecting humans. The objective of this study was to develop ...
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Objectives: The presence of E.coli in fish intended for human consumption may constitute a potential danger, not only in causing disease, but also because of the possible transfer of antibiotic resistance from aquatic bacteria to those infecting humans. The objective of this study was to develop an improved PCR method based on species – specific 16 S rRNA gene primers (FES, RES) for detection of E. coli from agar plates and fish tissues.
Materials and Methods: In this study, For the rapid detection of E .coli from fish a set of primers (FES, RES), targeting 16S rRNA gene sequences of the specific microorganism was designed, and fifty two rainbow trout were obtained from Karaj fish farm. Then 1mL of bacterial concentration of 106CFU/ml was injected into intraperitoneal cavity. Samples were collected from liver and kidney after 48h injection. The PCR reaction conditions were optimized to permit detection of organism from agar plates and fish tissue in a day.
Results: All tissue samples were positive for microbiological and PCR identification. DNA was successfully extracted by a boiled – extraction method or by phenol – chloroform – isoamyl alcohol. The BLAST analysis from sequencing of 4 amplicons randomly selected showed similar results, with the match being E .coli with a 100% similarity (not shown here).
Conclusion: It is concluded that this method is fast, specific and sensitive to detect E.coli in infected and asymptomatic animals, fish product, and may have a positive impact on public and environmental health.
Alireza Abdollahi; Saeed Shoar
Volume 7, Issue 4 , September 2012, , Pages 209-214
Abstract
Background & Objective: There are many common infections and inflammations among people over the world. This demands an affordable and reliable test with high sensitivity/specificity to predict or confirm the diagnosis of such cases in routinely clinical practice. In the present study, we aimed to ...
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Background & Objective: There are many common infections and inflammations among people over the world. This demands an affordable and reliable test with high sensitivity/specificity to predict or confirm the diagnosis of such cases in routinely clinical practice. In the present study, we aimed to find any potential correlation between serum levels of GGT and CRP- Q and/or hs- CRP and WBC count as the well- known markers of inflammation in human body.
Materials and Methods: Through a cross- sectional study, serum levels of CRP-Q, hs- CRP, and GGT, in addition to WBC count were measured in 1,500 healthy people, referred to Blood Transfusion Organization from across the country. Data were analyzed after the patients were checked by physical examination for ruling out the presence of any inflammation or other illness. Serum levels of GGT, CRP- Q, hs- CRP, and WBC count were analyzed by SPSS for windows version 16.
Results: Analysis showed a positive linear correlation between CRP- Q and hs- CRP with GGT also confirmed by non- parametric tests.
Conclusion: Serum GGT may be an inflammatory index and a useful marker in approaching to inflammatory diseases.
Alireza Abdollahi; Sanam Mahmoudzadeh
Volume 7, Issue 3 , July 2012, , Pages 177-182
Abstract
Background and Aims:Nosocomial infections cause considerable morbidity and mortality and pose high financial burden on healthcare systems. Although surface contact, surgical incisions, wounds and catheters are responsible for a high percentage of nosocomial infections, bacterial and fungal ...
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Background and Aims:Nosocomial infections cause considerable morbidity and mortality and pose high financial burden on healthcare systems. Although surface contact, surgical incisions, wounds and catheters are responsible for a high percentage of nosocomial infections, bacterial and fungal air contaminations in hospitals have an important role in development of hospital infections. The purpose of this study was to determine the microbial profile of air contamination in some hospital wards. Furthermore, we compared the results with cultures obtained from hospitalized patients. Materials and Methods:We performed a cross-sectional analysis at Imam Hospital, Tehran, Iran. Active (Quick Take 30 pump) and passive air samplings were performed in different wards of the hospital. Air samples were cultured to detect fungi and microorganisms. The results were compared with cultures obtained from hospitalized patients at the same time. Air microbial profiles of various wards were also compared. Results: The microbial profile of air samples showed that Micrococcus was the most common bacteria. Cladosporium was the most frequent fungi found while Aspergillus niger and Alternaria were the least frequent ones. Conclusion:In some wards, the results of blood cultures were similar to microbial profile of air samples. Thus, utilizing air purification systems and air sterilization is recommended. Our findings emphasized the role of regular monitoring of the biological risk for both patient and health care workers. The results would be useful in planning for employing appropriate strategies to reduce air burden in this hospital and other hospitals with similar conditions.
Amirfarhang Zand Parsa; Sara Ashoori; Alireza Abdollahi
Volume 7, Issue 2 , April 2012, , Pages 101-106
Abstract
Background and Objectives: Lipoprotein-a potentially represents a useful tool for risk stratification in cardiovascular accidents. The aim of this study was to evaluate the atorvastatin effect on serum lipid profile & lipoprotein A.
Material & Methods: In 2009, 405 patients with acute ...
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Background and Objectives: Lipoprotein-a potentially represents a useful tool for risk stratification in cardiovascular accidents. The aim of this study was to evaluate the atorvastatin effect on serum lipid profile & lipoprotein A.
Material & Methods: In 2009, 405 patients with acute coronary syndrome randomly were divided into 2 groups, taking 20 & 40 mg atorvastatin daily for 3 months. Lipid profile & lipoprotein-A serum levels were checked at the beginning of the study and also one and three months later.
Results: There was no statistical difference between the two groups in all measurements except in patients with unstable angina. The difference lay in the change of LP-a level after one month (P=0.045) and in apo-A level in all patients in the second and the third measurements compared with the first one (P=0.001 & P=0.002).
Discussion: It appears that the two doses (20mg and 40mg) of atorvastatin have a reduction effect on lipoprotein-A and serum lipid levels, but no difference is seen in the level of reduction. The 40 mg atorvastatin leaves more effects on reduction of apo-A than on the 20 mg after one and three months.
Mohammadreza Jalali-Nadoushan; Alireza Abdollahi
Volume 6, Issue 3 , June 2011, , Pages 107-109
Amir Farhang Zand-Parsa; Mahsa Sedaghati-Hagh; Mitra Mahdavi-Mazdeh; Alireza Abdollahi
Volume 6, Issue 3 , June 2011, , Pages 133-138
Abstract
Background and Objectives: The aim of this study was to survey the relationship between the level of creatinine,cardiac troponins serum and the function of the left ventricle in patients with kidney insufficiency,without acute coronary syndrome. Materialsand Methods:The sample ...
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Background and Objectives: The aim of this study was to survey the relationship between the level of creatinine,cardiac troponins serum and the function of the left ventricle in patients with kidney insufficiency,without acute coronary syndrome. Materialsand Methods:The sample was150 patients with nondialysis chronic kidney disease without acute coronary syndrome, hospitalized at Imam Khomeini Center through 2008-2009. All the patients had serum creatinine (cr) 1.5mgor greater and no symptoms of acute coronary syndrome in the first month. Serum Cr and troponin T and I were measured in blood samples and patients left ventricular function (LVEF) were estimated by echocardiography. Then based on the objectives, the findings were analyzed with SPSS soft ware. Results:Serum troponin T levels were significantly higher in patients with greater Cr levels but there was no significant relationship between troponin I and Cr levels. Patients with greater degrees of LV dysfunction had significantly upper levels of troponin T(P=0.0001). In this category, patients with diabetes, old age, cigarette smokers, greater levels of Cr, advanced stages of chronic kidney disease and greater degrees of LV dysfunction showedsignificantly higher levels of troponin T(P=0.0001). Conclusion:To identify chronic kidney disease patients at increased risk for cardiovascular events, serum troponin T can be used. In high-riskpatients, the evaluation for cardiovascular diseases could be done earlier in the course of chronic kidney disease.
Alireza Abdollahi; Hedieh Moradi-Tabriz; Baharak Mehdipour Aghabagher
Volume 6, Issue 3 , June 2011, , Pages 139-142
Abstract
Newborns’ bacterial infections due to group B Streptococcus (GBS) happen in two forms including early-onset disease or late-onset disease. In this paper, we report a case of early-onset GBS infection in a male infant. A 22-year-old primigravid woman delivers a term normal looking male infant. Nasal ...
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Newborns’ bacterial infections due to group B Streptococcus (GBS) happen in two forms including early-onset disease or late-onset disease. In this paper, we report a case of early-onset GBS infection in a male infant. A 22-year-old primigravid woman delivers a term normal looking male infant. Nasal flaring, grunting, and poor feeding presented soon after birth. An empiric treatment with intravenous ampicillin and amikacin initiated. On the second day, he was transferred to Newborn Intensive Care Unit (NICU). The intravenous antibiotics were changed to tazocin and vancomycin in NICU. The blood culture (BC) was positive for GBS. After 48 hours, respiratory distress symptoms disappeared, BC was negative, and ABG and CBC became normal. Finally, the infant was discharged after 15 days.GBS is a normal flora of women's gastrointestinal and genitourinary tracts. Infants with early-onset GBS sepsis need very close observation including repeated vital signs evaluation.
Alireza Abdollahi; Mohammad Reza Jalali Nadoushan
Volume 6, Issue 2 , April 2011, , Pages 53-55
Alireza Abdollahi; Mohammad Reza Jalali Nadoushan
Volume 6, Issue 1 , January 2011, , Pages 201-201
Hedieh Moradi-Tabriz; Alireza Abdollahi; Baharak Mehdipour; Saeideh Mahfoozi
Volume 5, Issue 4 , September 2010, , Pages 194-198
Abstract
Background and Objectives: A. baumannii is a cause of various infections with significant morbidity and mortality in the world. The aim of this study was to determine infection rate and antimicrobial susceptibility of A. baumannii in an Iranian tertiary care Hospital.
Materials and Methods:
This ...
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Background and Objectives: A. baumannii is a cause of various infections with significant morbidity and mortality in the world. The aim of this study was to determine infection rate and antimicrobial susceptibility of A. baumannii in an Iranian tertiary care Hospital.
Materials and Methods:
This study was performed on 166 positive blood cultures for A. baumannii, received from different wards of Imam Hospitals complex in Tehran, during two years. Disk diffusion method was used to survey several antibiotics resistance. Data were analyzed by spss software, chi square test.
Results: A. baumannii was resistant to imipenem (26.9%), gentamicine (32.2%), carbenicillin (36.4%), cephotaxime(41.7%), ampicillin (66.7%), amikacine (69.4%), ciprofloxacin (74.3%), cotrimoxazol (86.3%),piperacillin (91%), Ceftriaxone (92.5%), cefixime (99.2%), amoxiclave (100%), cefepime(100%), ceftazidime (100%). ICUs (50.6%) and Pediatrics Wards (2.4%) were the most and the least frequent wards in which A. baumannii were isolated.
Conclusions: Due to antibiotic resistance pattern change among A. baumannii and its consequences, it is recommended to control infection associated risk factors as well as further researches aiming identification of different of patterns in resistance and sensitivity to antibiotic.
Alireza Abdollahi; Hedieh Moradi-Tabriz; Mehrnaz Rasoulinejad
Volume 5, Issue 4 , September 2010, , Pages 208-211
Abstract
HIV-related Immunosuppression significantly increases the risk of acquiring opportunistic infections. This report describes a 69-year-old man, referred to hospital with decreased consciousness and productive cough. This man was a known case of human immunodeficiency virus positive. The sputum of this ...
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HIV-related Immunosuppression significantly increases the risk of acquiring opportunistic infections. This report describes a 69-year-old man, referred to hospital with decreased consciousness and productive cough. This man was a known case of human immunodeficiency virus positive. The sputum of this patient was positive for Salmonella typhimurium. Pulmonary auscultation signaled brief and scattered crackles especially in the lung bases. Lung graphy showed bronchopulmonary infiltration. Diagnosed with pneumonia due to Salmonella, the patient underwent treatment but he succumbed after 48 hours in septic shock. This case report demonstrates the importance of including general medical causes of immunosuppression and their treatment in the differential diagnosis and aetio-pathogenesis of HIV-infected patients with unusual clinical presentations.
Alireza Abdollahi
Volume 5, Issue 4 , September 2010, , Pages 216-217
Hedieh Moradi Tabriz; Alireza Abdollahi; Saeideh Mahfoozi
Volume 5, Issue 3 , June 2010, , Pages 143-149
Abstract
Background and Objectives: Blood stream infections cause significant morbidity and mortality in the world. In this study, we aimed at describing the organisms responsible for septicemia in 2006-2007 and their antimicrobial susceptibility that might lead to proper selection of antimicrobial agents ...
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Background and Objectives: Blood stream infections cause significant morbidity and mortality in the world. In this study, we aimed at describing the organisms responsible for septicemia in 2006-2007 and their antimicrobial susceptibility that might lead to proper selection of antimicrobial agents in hospitalized patients with suspected sepsis. Materials and Methods: Microbiology reports of 1753 blood specimens collected from inpatients of a referral hospital in Iran were retrospectively reviewed. Specimen culture, bacterial identification, and disk diffusion susceptibility testing were performed according to The Clinical and Laboratory Standards Institute guidelines. Data were analyzed by SPSS, X² Test and the fisher exact Test. Results: Coagulase-negative Staphylococci accounted for most isolated bacteria (24.61%), in both genders. The second and third most frequent isolated bacteria in adults were staphylococcus aureus and Stenotrophomonas maltophilia, and in children were Klebsiella pneumoniae and S. aureus. Among the all Gram – positive cocci, vancomycin was the most effective agent. The most effective antibiotic varied among the Gram-Negative isolates, for example 95.65% of S. maltophilia were susceptible to co-Trimoxazole, and amikacin were suitable antibiotic in 85.29% of E. coli. Conclusion: As the degree of antibiotic resistance rate for blood stream pathogens is alarming, it is mandatory to monitor the susceptibility of these isolates in order to avoid inappropriate use of antibiotics in hospital wards
Alireza Abdollahi; Hayedeh Haeri; Alireza Alaie Alamooti
Volume 5, Issue 1 , January 2010, , Pages 40-42
Abstract
Lipomas of the gasterointestinal Tract are relatively uncommon in clinical practice. Most cases are asymptomatic with small tumor size and do not need any special treatment but the large ones are known to cause symptoms such as abdominal pain, obstruction, intussusceptions, and bleeding. The ...
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Lipomas of the gasterointestinal Tract are relatively uncommon in clinical practice. Most cases are asymptomatic with small tumor size and do not need any special treatment but the large ones are known to cause symptoms such as abdominal pain, obstruction, intussusceptions, and bleeding. The majority (90%) of these lesions are submucosal with predominantly right sided with a slight preponderance in females. Recurrence or malignant transformation has not documented in these lesions. We present a case of giant submucosal lipoma in a 33 years old male in sigmoid colon presenting with abdominal pain and rectal bleeding from Imam Hospitals’ complex, Tehran-Iran. In patients with gastrointestinal symptoms and large mass in sigmoid and with non-specific findings in colonoscopy, this disease has to be taken into consideration.
Alireza Abdollahi; Mehrnaz Rasoulinejad; Seyed Jalil Mousavi; Fatemeh Fattahi; Akram Sarbiaei
Volume 4, Issue 3 , June 2009, , Pages 113-117
Abstract
Background and Objective: Brucellosis is a main transmittable zoonotic disease, which is endemic, and a common health burden in Iran. Adenosine deaminase (ADA) is an essential enzyme which is involved in purine metabolism and its role in immune system is very important. The aim of this study ...
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Background and Objective: Brucellosis is a main transmittable zoonotic disease, which is endemic, and a common health burden in Iran. Adenosine deaminase (ADA) is an essential enzyme which is involved in purine metabolism and its role in immune system is very important. The aim of this study was to determine serum changes of ADA and C-reactive protein (CRP) levels in patients with brucellosis. Patients and Methods: The study was a case-control one on 36 patients and 36 controls. The serum level of ADA and quantitative CRP was measured in both patients and controls. We also measured the Wright, Coomb,s Wright and 2-mecapto ethanol (2ME) in two participants groups. Statistical analysis was performed using SPSS for windows Version 11.5 Results: ADA serum level in patients group showed a significant difference compared to control group (31.64±25.1 vs. 13.97±3.9, P<0.0001). Quantitative CRP level in patients group was higher than control group significantly (25 ±20.7 vs 6.9±4.4 , P,s Wright, and 2ME with serum ADA and CRP levels (P=NS). Conclusion: This finding shows the serum level of ADA and CRP are two important parameters in diagnosis, treatment of brucellosis with the considering of the clinical manifestations and other paraclinic findings. However it is advisable to perform more studies.
Alireza Abdollahi; Hedieh Moradi Tabriz; Ebrahim Razmpa
Volume 4, Issue 3 , June 2009, , Pages 118-122
Abstract
Background and Objective: Approximately 45% of benign peripheral nerve sheath tumors (PNST) occur in head and neck regions. Malignant peripheral nerve sheath tumors (MPNST) are less common and only 8-15% of these tumors occur in head and neck region. In this study, we aimed at evaluating the ...
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Background and Objective: Approximately 45% of benign peripheral nerve sheath tumors (PNST) occur in head and neck regions. Malignant peripheral nerve sheath tumors (MPNST) are less common and only 8-15% of these tumors occur in head and neck region. In this study, we aimed at evaluating the demographic characteristics, pathologic findings, locations, main clinical presentations and family history of these tumors in head and neck regions. Patients and Methods: In a cross sectional and retrospective study, we analyzed head and neck peripheral nerve sheath tumors in patients who referred to Amir-Aalam Hospital affiliated to Tehran University of Medical Sciences for 10 years (1996 to 2005). Results: There were 113 cases with a kind of nerve sheath tumor; the female/male ratio was 1.09. The frequency of schwannoma, neurofibroma and MPNST was 66.37%, 30.1% and 3.53%, respectively including 39 cases of acoustic neuroma, 18 cases of cervical nerve trunk involvement, 12 cases of facial nerve involvement, 11 cases of the 10th cranial nerve PNST and only one case of cervical sympathetic nerve involvement. Conclusion: Schwannomas are the most common types of PNSTs seen in head and neck regions, and aucoustic neuroma comprises the majority of them. About 25- 45% of extracranial schwannomas also occur in head and neck regions that usually present a slow growing of the mass lesion and various mass effects. Although neurofibroma and MPNSTs are less common, they must be kept in mind as differential diagnoses of other benign and malignant lesions in this region.
Nehzat Akiash; Younes Nozari; Naser EbrahimiDaryani; Alireza Abdollahi
Volume 4, Issue 1 , January 2009, , Pages 1-4
Abstract
Background and Objectives: Cardiovascular disease is the most common cause of death in developed countries. In addition to traditional risk factors for cardiovascular disease, nowadays, accumulating evidence indicates that a variety of infections contribute to pathogenesis of atherosclerosis, ...
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Background and Objectives: Cardiovascular disease is the most common cause of death in developed countries. In addition to traditional risk factors for cardiovascular disease, nowadays, accumulating evidence indicates that a variety of infections contribute to pathogenesis of atherosclerosis, (We investigated whether Helicobacter pylori infection is related to Prevalence of coronary heart disease) there is controversy concerning the impact of H. pylori infections in atherosclerosis. Materials and Methods: This case-control study was carried out on 130 subjects who underwent coronary angiography in the School of Medicine, Tehran University of Medical Sciences, Iran, from Oct 2006 to Oct 2007. According to angiography findings, the patients were grouped into cases (n=70) with Coronary Artery Disease (CAD), and normal control group (n=60). Then, using ELISA method, specific anti H. pylori IgGs were measured in all subjects. The connection between CAD and H. pylori infection was studied. Results: Among the 130 patients, anti-H. pylori IgGs were detected in 80% of cases and 65% of control subjects (p=0.05). The investigation shows that CAD correlated significantly with hypertension, diabetes, and smoking (p<0.05) although there was no associations between these traditional risk factors, and H. pylori infection. Conclusion: These findings raise the possibility that exposure to H. pylori may lead to an increased risk of coronary artery disease independent of other risk factors.
Alireza Abdollahi; Sedighe Borna; Fatemeh Mirzaei; Akram Sarbiaei
Volume 4, Issue 1 , January 2009, , Pages 5-8
Abstract
Background and Objectives: Preterm labor is a serious problem in obstetrics, accounting for 70% of perinatal mortality. High sensitive C - reactive protein (HS-CRP) is a sensitive marker of Inflammation. Our aim in this study was to determine Amniotic fluid hs-CRP concentration and its correlation ...
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Background and Objectives: Preterm labor is a serious problem in obstetrics, accounting for 70% of perinatal mortality. High sensitive C - reactive protein (HS-CRP) is a sensitive marker of Inflammation. Our aim in this study was to determine Amniotic fluid hs-CRP concentration and its correlation with pre-Term delivery. Materials and methods: This prospective study was conducted on 90 pregnant women who underwent genetic amniocentesis between the 15th and 20th weeks of gestation. All patients were followed until delivery. Pateints with abnormal karyotype and iatrogenic preterm delivery for fetal and maternal indications were excluded. The samples were carried immediately to the laboratory of Imam Khomaini Hospital Complex, Tehran, Iran for cytogenetic examination and tested for HS-CRP by turbidimetric method. Non parametric tests and receiver-operating characteristics curve analysis were used for statistical purpose. Results: The study showed no correlation between amniotic fluid HS-CRP concentrations with preterm delivery. Maternal serum alpha-fetoprotein (AFP) levels were higher in patients delivered preterm compared with term deliveries (P=0.036). Conclusion: Our results implicated that HS-CRP like other acute phase response markers was not as a possible risk marker of preterm delivery.