ABSTRACT
Aims and objectives: To identify the prevalence of bacteremia and the spectrum of antimicrobial sensitivity in our community, because it will guide the clinician to institute proper antimicrobial therapy. Background: Bacteremia originates from either intravascular sites or extraVascular sites. In case of bloodstream infection, either Gram-positive or Gram-negative bacteria are responsible. Of these bacterial isolates, Gram-negative bacteria are responsible for higher mortality and morbidity. Since 20 to 30 years, coagulase-negative Staphylococci are responsible for most infection. Materials and methods: In this retrospective study, blood samples were collected aseptically from 11,581 patients and were injected into the bottles containing bile-broth and brainheart infusion broth and allowed to be incubated at 37°. Then subculture was done on blood agar, chocolate agar, as well as MacConkey agar media and was kept for 7 days or till the appearance of growth of the organism. After identification of isolates, Kirby Bauer disk diffusion test on Mueller-Hinton agar II was performed to detect antimicrobial sensitivity. Results: Our study documented 8.58% positive cultures in the last 7 years. Gram-negative bacterial isolates were significantly higher than Gram-positive isolates (64.19% vs 34.80%, p = 0.00). Lowest number of positivity was seen in Morganella (0.40%) followed by Proteus (0.50%) and Enterococcus faecium (0.90%) in ascending order. Males were significantly more culture positive than females (549/994 vs 445/994, p = 0.00). Most common bacterial isolates were (coagulase negative Staphylococci) CoNS (239, 24.04%) followed by Klebsiella including ESBL (extended spectrum beta-lactamase), carbapenamase producer (234, 23.74%) and Escherichia coli (110, 11.06%). E. coli was >75% sensitive to imipenem group, polymyxin B (98.18%), colistin (96.36%), and amikacin (80.9%). Coagulase negativeStaphylococci showed more than 60% sensitivity to levofloxacin (76.98%), amikacin (82.84%), tigecycline (87.44%), vancomycin (94.45%), teicoplanin (91.63%), linezolid (91.21%), gentamicin (76.56%), netilmicin (74.47%), and tetracycline (75.31%). Klebsiella (non-ESBL and carbapenemase producer) was highly sensitive to polymyxin B (93.06%), colistin (91.90%), meropenem (65.31%), and imipenem (94.73%). Extended spectrum beta-lactamase-producing Klebsiella showed increased sensitivity to meropenem (89.47%), imipenem (94.73%), ertapenem (81.57%), polymyxin B, and colistin (97.36% each). Conclusion: Positive cultures were 8.58% in the last 7 years. Gram negative bacterial isolates were significantly higher. Males were more culture positive. Most common bacterial isolates were CoNS followed by Klebsiella species and E. coli. Gram-negative bacterial isolates were highly sensitive to piperacillin, cefoperazone, imipenem, meropenem, aminoglycoside group of antibiotics, tigecycline, polymyxin B and colistin. Gram-positive bacterial isolates were sensitive to piperacillin, cefoparazone, vancomycin, teicoplanin, linezolid and clindamycin. Salmonella typhi were sensitive to ampicillin, cefoparazone, cefepime, azithromycin, chloramphenicol, and fluoroquinolones. Acinetobacter showed > 50% sensitivity to cefepime and Pseudomonas showed > 50% sensitivity to cefotaxime and levofloxacin. So to prevent resistance of bacterial isolates, a proper antibiotic guideline should be maintained.
ABSTRACT
Duodenal diverticulum is the second most common diverticulum of gastrointestinal tract. Among duodenal diverticulum, incidence of intramural duodenal diverticulum is 100 as per report till date. It is usually asymptomatic, but in middle or adult age, it may present with postprandial abdominal discomfort, often complicates in the form of bleeding, perforation or rarely neoplasm. So, this congenital duodenal deformity requires urgent definitive treatment. Here we presented a case presenting with postprandial abdominal discomfort with occasional vomiting. He was advised upper gastrointestinal endoscopy. It showed evidence of duodenal septa at the junction of 1st and 2nd part. Scope was negotiated through one channel. He was advised barium meal of stomach, duodenum and follow through, which ultimate demonstrated presence of a rare abnormality, duodenal intramural diverticulum, which if not treated, can produce severe complication in future.