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Trop. Med. Infect. Dis. 2017, 2(3), 28; doi:10.3390/tropicalmed2030028

Five-Year Antimicrobial Susceptibility of Pseudomonas aeruginosa from a Local Tertiary Hospital in Bacolod City, Philippines

1
Clinical Laboratory, Dr. Pablo O. Torre Memorial Hospital, Bacolod City 6100, Philippines
2
Medical Technology Program, Colegio San Agustin, Bacolod City 6100, Philippines
*
Author to whom correspondence should be addressed.
Received: 22 May 2017 / Revised: 4 July 2017 / Accepted: 6 July 2017 / Published: 12 July 2017
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Abstract

Over five years, a total of 646 P. aeruginosa isolates was acquired from different clinical specimens and their resistance to the commonly used anti-pseudomonal antibiotics was determined. The majority of the isolates were from respiratory (60.99%) and urinary sources (23.22%) while the least came from transudates and exudates (2.01%). Most of the samples were acquired from older adults (77.55%), most of whom were admitted (67.03%). Amikacin was found to be the most effective drug with a resistance rate of 7.5%, followed by piperacillin/tazobactam (8.5%) and gentamicin (13.5%). On the other hand, 26.7% of the isolates were resistant to levofloxacin. Almost 100% of the isolates were screened positive for AmpC production, which may suggest inducible resistance against expanded spectrum beta-lactamase. Furthermore, for the last three years, P. aeruginosa isolates from this area have been noted to have decreasing resistance only to aztreonam and gentamicin. Also, for five years, a mean MAR index of 0.17 was noted which indicates either proper antibiotic use or most isolates did not come from high-risk areas. Moreover, there was no significant difference in the resistance of P. aeruginosa when compared by specimen source (p = 0.662), but significant when compared by year band (p = 0.02). View Full-Text
Keywords: antibiotic susceptibility; Pseudomonas aeruginosa; local tertiary hospital; Bacolod City antibiotic susceptibility; Pseudomonas aeruginosa; local tertiary hospital; Bacolod City
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Juayang, A.C.; Lim, J.P.T.; Bonifacio, A.F.V.; Lambot, A.V.L.; Millan, S.M.; Sevilla, V.Z.J.N.; Sy, J.K.T.; Villanueva, P.J.; Grajales, C.P.; Gallega, C.T. Five-Year Antimicrobial Susceptibility of Pseudomonas aeruginosa from a Local Tertiary Hospital in Bacolod City, Philippines. Trop. Med. Infect. Dis. 2017, 2, 28.

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