Nosocomial Infections Incidence Rates, Bulgaria, 1999-2011Todorova-Christova M1*, Vatcheva R2, Filipova R3, Kamenova T3, Arnaudov Y4, Radulova Y4, Ivanov I1 and Dobreva E1
- *Corresponding Author:
- Todorova-Christova M
National Center of Public Health and Analyses
Tel: +359 2 94 46 99
E-mail: [email protected]
Received date: November 29, 2014; Accepted date: March 04, 2015; Published date: March 09, 2015
Citation: Todorova-Christova M, Vatcheva R, Filipova R, Kamenova T, Arnaudov Y, et al. (2015) Nosocomial Infections Incidence Rates, Bulgaria, 1999-2011. J Bacteriol Parasitol 6:218. doi: 10.4172/2155-9597.1000218
Copyright: © 2015 Todorova-Christova M, et al. This is an open-access article distributed under the terms of the Creative Commons Attribution License, which permits unrestricted use, distribution, and reproduction in any medium, provided the original author and source are credited.
The study presents an analysis in two parts of the officially registered NI in the country by the computerized information system (CIS-NI) in the course of a 13-year period (1999-2011). The system employs two types of indicesincidence rate (morbidity, recalculatred in the study per 1000 patients discharged) and percentage distribution (frequency distribution, relative frequency distribution) by infection sites and microbial agents. This part discusses the overall NI incidence rates by hospital and wards categories, accentuating upon pediatric and intensive care wards-anesthesiology and resuscitation, intensive therapy.
The average incidence rate is 10% at the following distribution by infection sites: VAP-5%, surgical site infections (SSI) and pulmonary infections (the latter including bronchitis, bronchiolitis, pneumonia, non-associated with procedure of endotracheal intubation) of 16-18% each; urinary tract infections (UTI) 13-15%; sepsis 4-5%, enteric, skin infections, of the sense organs, intraabdominal and cardiovascular system infections-approximately 2% of each group, endometritis and other gynecologic infections-1%, mastitis in young mothers-0.1%. Microbiologically diagnosed are 50-60% ?f the infections as a total and in 40-50% unconfirmed and unexamined microbiologically.
E. coli and S. aureus are identified in about one third of the total number of infections, the rest isolates pertain to opportunistic bacterial species, known for their multiresistence: Klebsiella spp, Pseudomonas spp, Acinetobacter spp etc.
The incidence rate of infections ranges within low limits, e.g, LRTIs (pulmonary infections)-pediatric wards-upto 3%; VAP/ pulmonary infections-resuscitation (A&R) 15-19%, intensive therapy (IT) 5-8%; UTIs-resuscitation, urology-13%; SSIs-burn units-38%, septic surgery-23%, vascular surgery-11%; sepsis-burn units-22%, resuscitation-8%, cardiovascular surgery-6%, ICUs-5%.
The official registration system provides reliable information on a national level for the purpose of NI surveillance and control. The system interpretes the original data of the wards in basic indices as incidence and microbial isolates‘ distribution. This official database reflects the efforts in the sphere of NI prevention and control. Possible additional links to the system would contribute to direct comparisons of indices regarding the care for patients undergoing risk procedures.