Davood Yadegarynia

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Actinomycosis is an infectious disease caused by a gram-positive anaerobic or microaerophilic Actinomyces species that causes both chronic suppurative and granulomatous inflammation. The following study reports a 48-year-old Iranian woman presenting with a spontaneous discharging sinus on the hard palate for 8months. The patient has no past medical history(More)
Despite a decline in the frequency of gram-negative infections in cancer patients, there has been an increase in the proportion of such infections caused by nonfermentative gram-negative bacilli (NFGNB). We tested the in vitro activity of several quinolones against NFGNB isolated from cancer patients between February 2000 and February 2003, using a broth(More)
OBJECTIVES To determine the current spectrum of Gram-positive bloodstream infections (BSI) in patients with hematologic malignancies at our institution, and to determine the in vitro activity of various fluoroquinolones against clinical Gram-positive isolates collected from such patients. METHODS Institutional microbiology records from 493 consecutive(More)
BACKGROUND Neutropenic patients are vulnerable to a wide spectrum of infectious agents. The aim of this study was to determine the current frequency of bacterial infections in patients with nosocomial fever and neutropenia. METHODS In a retrospective study, the neutropenic patients' specimens with nosocomial fever were cultured on blood and MacConkey agar(More)
BACKGROUND The rates of postneurosurgical infections, particularly meningitis and the most common pathogens have been reported variable during the recent years. The aim of this research was to determine the prevalence of postneurosurgical meningitis and its current spectrum of infectious agent. METHODS In a descriptive study, the postneurosurgical(More)
INTRODUCTION The aim of this study was to determine hepatitis B surface antigen (HBsAg) seroclearance rate among patients treated with lamivudine at a specialized tertiary care referral hospital in Tehran, Iran. METHODS All patients on lamivudine (biovudin®) therapy at a dose of 100 mg/day, who showed seroclearnace between March 2001 and September 2011(More)
Free-living amoebae (FLA) of the genus Acanthamoeba are opportunistic pathogenic agents able to cause life-threatening infections in immunosuppressed patients. Chronic kidney disease impairs adaptive and innate immunity. Thus, patients with chronic kidney disease are prone to opportunistic infections by potentially pathogenic FLA. Therefore, in the present(More)
BACKGROUND New data indicates that vancomycin may be less effective against methicillin-resistant Staphylococcus aureus (MRSA) infections with minimum inhibition concentration (MIC) within a sensitive range. OBJECTIVES The aim of this study was to determine the distribution of the vancomycin MIC between MRSA strains and observe the difference in mortality(More)
Tuberculosis (TB) is a serious public health problem worldwide, particularly in developing countries. The most common presentation of TB is the pulmonary form; however, extrapulmonary manifestations are not uncommon, particularly in the immunocompromised patients. TB of the central nervous system is the most severe extrapulmonary presentation. We report a(More)