Maryam Amini; Ali Davati; Masomeh Piri
Volume 8, Issue 1 , January 2013, , Pages 21-26
Abstract
Background and Objective: Diabetes mellitus is one of the main problems in health systems in the world. Diabetic Foot infections (DFI) is one of the main complications and the most cause of non-traumatic lower limb amputation .This study aimed to determine the prevalence of bacteria involved in ...
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Background and Objective: Diabetes mellitus is one of the main problems in health systems in the world. Diabetic Foot infections (DFI) is one of the main complications and the most cause of non-traumatic lower limb amputation .This study aimed to determine the prevalence of bacteria involved in DFI and their antibiotic resistance in patients with DFI diagnosis.
Patients and Methods: This descriptive-analytical and cross-sectional study was designed in 4 years period from April 2007 to March 2010 on 90 patient in Shahid Mostafa Khomeini Hospital,Tehran, Iran .For bacteriological analysis, all wound samples culture grown by standard methods bacteriology and Disk diffusion method was used for antibiogram. Patient’s clinical and epidemiologic data were collected from recorded file. The data were analyzed by using SPSS16 statistical software.
Results: 104 bacteria were isolated from 90 patients. 57.70% were gram-positive and 42.30% were gram-negative. Among gram-positive bacteria Staphylococcus aureus (60%) and enteroccoci spp.(33.3%) and among gram-negative bacteria E. coli (47.73%), Pseudomonas Aeroginosa (22.73%) and Proteus spp.(18.18%) were the most common isolates respectively. 75% of isolates were resistant to two antibiotics or more. Previous antibiotic therapy was significant risk factor for multidrug resistant (MDR) infections (P: 0.003). All gram-positive isolates were sensitive to Vancomycin. Imipenem and Amikacin had good activity against gram-negative bacteria.
Conclusion:Infection with MDR bacteria in patients with diabetic foot ulcers is high and have significant association with recent antibiotic therapy. So the proper use of antibiotics in order to prevent the creation of multi-drug resistant bacteria is recommended.
Maryam Amini; Ali Davati; Mahdieh Golestanifard
Volume 7, Issue 4 , September 2012, , Pages 241-245
Abstract
Background and Objective:Acinetobacter spp.a Gram-negative coccobacillus is increasingly reported as important cause of nosocomial infections. Multi-drug resistance (MDR) ofAcinetobacterspp., raises concerns over our ability to treat serious infections with these organisms. The aim of this study was ...
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Background and Objective:Acinetobacter spp.a Gram-negative coccobacillus is increasingly reported as important cause of nosocomial infections. Multi-drug resistance (MDR) ofAcinetobacterspp., raises concerns over our ability to treat serious infections with these organisms. The aim of this study was to determine the frequency and associated risk factors for infections with MDR Acinetobacter spp. in ICU patients ofShahid Mostafa Khomeini Hospital, Tehran, Iran.
Patients and Methods:This descriptive-analytical andcross-sectional study was designed in 3 years period from April 2008 to March 2010 on 130 patients. For bacteriological analysis, sputum, blood, urine and wound specimens were used from patients within >48 hr after admission. Patient’s clinical and epidemiologic data were collected, from recordedfile, and correlated to Acinetobacter spp. infection. The data were analyzed using SPSS16 statistical software,chi-square, and Mann-Whitney test.
Results: The frequency of Acinetobacterspp. infection separately by years was 21.5%, 30.8% and 47.7% in 2008, 2009, 2010, respectively. All isolateswere resistant to carbnicillin, piperacillin, cefotaxime and cephalotin, 99.2% to ciprofloxacin, cotrimoxazole and chloramphenicol, 97.7% to imipenem, 95.4% to tetracycline and 91.5% to gentamicin. The highest sensitivity was to amikacin 14.6%.
Conclusion:Nosocomialinfections with Acinetobacter spp. during the three years, was a growing trend, and all isolates were MDR and highest susceptibility was to Amikacin. Most important risk factors wereincorrect diagnosis, inappropriate usage, doses, andtime of antibiotic therapy, inappropriate formulation of some antibiotics.
Mohammad Hossein Ghaini; Shaghayegh Sadat Esmailnejad; Ali Davati
Volume 7, Issue 3 , July 2012, , Pages 145-150
Abstract
Background and Aims: Immunohistochemical tests are one of the most important tests, which are under study to determine the prognosis of the cancers such as transitional cell carcinoma. By the time, flexible cystoscopy and urine cytology are the routine tests for following up the patients with transitional ...
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Background and Aims: Immunohistochemical tests are one of the most important tests, which are under study to determine the prognosis of the cancers such as transitional cell carcinoma. By the time, flexible cystoscopy and urine cytology are the routine tests for following up the patients with transitional cell carcinoma, which are both operator dependent. On the other hand, cystoscopy is an invasive method, and urine cytology is a method with low sensitivity. The aim of this study was to determine CK20 in patients with transitional cell carcinoma of bladder and its relation with prognostic factors, which are the stage and the grade of the tumor.
Materials and Methods: Our study was done in Mostafa Khomeini Hospital from 2007 to 2010 on the 2001 to 2009 stored information files, included 53 patients diagnosed as transitional cell carcinoma of bladder (TCC) of different stages and grades that were underwent total cystectomy. Immunohistochemical staining was performed on tissue sections with specific CK20 antibody. Then the samples were studied by light microscope so positive and negative cases were identified.
Results: According to statistical analysis there were significant reverse relationship between CK20 and stage, and significant reverse relationship between CK20 and grade (P= 0.000).
Conclusion: Immunohistochemical study of patients with transitional cell carcinoma of bladder in order to identify CK20 can be a useful method to determine the prognosis of these patients.
Mohammad Hassan Ghosian Moghaddam; Hossin Ayatollahi; Fatemeh Ghafarirad; Maryam Maleki; Ali Davati
Volume 5, Issue 4 , September 2010, , Pages 173-177
Abstract
Background and Objective: Prostate cancer is a prevalent disease around the world. The prostatic specific Antigen (PSA) test has recently proved itself as a useful method for the diagnosis and examination of patients with prostatic cancer. The objective of this study was to compare the stability of free ...
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Background and Objective: Prostate cancer is a prevalent disease around the world. The prostatic specific Antigen (PSA) test has recently proved itself as a useful method for the diagnosis and examination of patients with prostatic cancer. The objective of this study was to compare the stability of free PSA and total PSA in different storage settings. Materials and Methods: Samples were obtained from 12 men, within the range of 50-70 yr old, who referred to Hazrat-e-Ghaem Hospital, Mashhad, Iran . The sera were separated via centrifuge and stored at room temperature (21-24ºC) for 3, 6, and 9 hours; at 4ºC for 24, 48, and 72 hours; and at -20ºC for 1, 2, and 3 months. Finally, the stability of PSA was compared to that of the control group. The data were analyzed using the statistical software SPSS and paired t-test and repeated measure. Results:In comparison with the average of the control samples, after 3 hours of storage at room temperature, the free PSA concentration had a 30% drop; and after 72 hours of storage in the refrigerator, the average of free PSA had a 34% fall. In addition, the average of the free PSA concentration kept in the freezer for 3 months exhibited an 11% drop. However, the average of total PSA kept in the refrigerator for 72 hours dropped by 6.9%. Finally, over 2 months of storage in the freezer, the average of the total PSA concentration exhibited a decrease of 10.6%. Conclusion: Free PSA, when compared to total PSA in terms of time and storage temperature, shows less stability.