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A five-month-old, male Brazilian fila presented with a three-day history of a focal swelling in the left superior palpebra and a focal, subcutaneous swelling over the dorsal cervical region. Both lesions initially responded to warm compresses and a two-week course of oral amoxicillin-clavulanic acid therapy. The eyelid swelling recurred after discontinuation of the oral antibiotic therapy. The lesion was progressive and was refractory to trimethoprim-sulfadiazine therapy. Culture and sensitivity performed from a surgical biopsy sample of the eyelid mass identified Actinomyces viscosus and other bacterial genera. A combination of surgical debulkment, Penrose drain placement, and a one-month course of oral oxacillin therapy has resulted in clinical regression of the lesion at a six-month postoperative evaluation.
Acute sinusitis is a common upper respiratory tract infection worldwide, which can be severely complicated if inappropriate treatment is applied. The aim of this study was to assess and compare efficacy of cefuroxime and co-amoxiclav in the treatment of acute sinusitis in an Iranian sample population.
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Numerous beta-lactamase inhibitors have been developed to overcome the problems of bacterial resistance to beta-lactam antibiotics. One such agent, clavulanic acid, has been combined with amoxicillin, and the combination is effective against many amoxicillin-resistant organisms. Clinical studies have demonstrated the efficacy of amoxicillin/clavulanate in a variety of infections, however, comparative studies are few and have not demonstrated sufficiently the superiority of the combination over conventional antibiotic therapy. In addition, side effects appear to be more frequent than with amoxicillin alone. The place in therapy of amoxicillin/clavulanate is discussed.
Sixty-nine percent of patients carried beta-lactamase-producing anaerobes, with a mean of one to two strains per patient. Seventy isolates of the beta-lactamase- producing strains formed 4% of the total cultivable anaerobic flora. Prevotella was the most prevalent beta-lactamase-producing species, followed by Capnocytophaga, Veillonella and Bacteroides.
This study determined the microbiota of the mucosa- and implant-facing parts of expanded polytetrafluoro ethylene augmentation material, and the influence of major periodontopathogens on the healing process associated with guided bone regeneration around dental implants. Seventeen patients with nine dehiscence and eight extraction defects were studied. Prior to surgery and at membrane removal, microbial morphotypes, total viable counts, and the occurrence of selected microbial species were examined by phase-contrast microscopy, nonselective and selective cultures, and DNA probes. Nine sites with submerged barrier membranes throughout the 9-month study were free of cultivable microorganisms and experienced significantly more osseous healing than eight sites with prematurely exposed membrane. Patients with few or no deep periodontal pockets demonstrated significantly fewer residual osseous defects than patients showing several pockets of increased depths. In addition, patients with prematurely exposed membranes revealed several deep periodontal pockets. Three patients with less than 1 mm of osseous gain yielded either Porphyromonas gingivalis or Actinobacillus actinomycetemcomitans. Peptostreptococcus micros occurred in high proportions in seven of the eight patients with premature membrane exposure and inadequate osseous healing. These findings associate putative periodontal pathogens with unsuccessful guided bone regeneration. The control of periodontal pathogens in the oral cavity prior to placement of barrier membranes around implants might increase the prognosis of osseous regeneration.
RO 23-6240 (fleroxacin), pefloxacin, augmentin, cefaclor, cef-uroxime, ceftazidime, vancomycin, piperacillin and amikacin were tested against a wide variety of gram-positive and gram-negative bacteria. The MICs of fleroxacin were very similar to those of pefloxacin. Against all the bacterial groups tested, the quinolones compared favorably with the other antimicrobials tested, particularly against the more resistant species such as Corynebacterium group JK and D2 and methicillin-resistant staphylococci.
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A prospective single-center study including 48 patients who underwent laparoscopic appendectomy was conducted between August 2010 and September 2011. Two peritoneal samples were obtained from each patient in the pre- and post-appendectomy period. Aerobic and anaerobic microbiological cultures were obtained from the samples. The data were analyzed with statistical methods.
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A rapid, capillary electrophoresis method was evaluated for determination of amoxicillin and clavulanic acid in Augmentin as well as ampicillin and sulbactam in Unasyn preparations for injections. Phosphate-borate buffer at pH 8.66 containing 14.4% sodium dodecyl sulfate was used as a mobile phase. The method was validated. Reproducibility, precision, accuracy and assay linearity in concentration of amoxicillin 0.05-3.03 mg/ml and ampicillin 0.05-3.08 mg/ml, as well as clavulanic acid 0.02-2.02 mg/ml and sulbactam 0.05-2.08 mg/ml were established. This new method is fast, inexpensive and limits consumption of organic solvents when compared with alternative high performance liquid chromatography (HPLC) method, used for drug analysis. Statistical analysis by Student's t-test showed no significant differences between the results obtained by the two methods t(calculated) 0.32 and 1.69 for amoxicillin and clavulanic acid and 0.67 and 1.93 for ampicillin and sulbactam were smaller than t(tabulated).
To examine study entry microbiology in patients stratified by disease severity in a clinical trial in acute bacterial exacerbation of chronic bronchitis (ABECB).