Correlation of nosocomial infection with prolonged hospital stay in Kano Nigeria

Nosocomial infections or Health Care prolonged hospital stay and has been implicated in increase in socio-economic disturbance, long term disability, and increased mortality rate. There is paucity information on the burden of HCAIs because of poorly developed surveillance systems and inexistent control methods. We aimed to investigate the prevalence of nosocomial infection due to prolonged hospital stay in selected tertiary hospitals of Kano metropolis. Retrospective data  were collected from three hospitals with a total number of admitted patients and the number of prolonged hospital stays during the month of study. A total of 401 clinical samples collected from patients admitted for ≥14 days and the age of ≥18 years from all study sites. Examples include wound swabs, urine samples, urine catheters, and nasal intubation. All the samples were processed by the standard bacteriological laboratory procedure of the Clinical laboratory standard institute. The results showed that the percentage of prolonged hospital stay in Kano 40.34%, Murtala Muhammad Specialist Hospital (MMSH) 50.54% with the least at Muhammad Abdullahi Wase Specialist (MAWSH) 28.91%. Age served as significant factors for acquired HCAIs; participants aged were 41- 70 years have a higher prevalence of nosocomial infections. From 138 positive isolates observed, Murtala Muhammad Specialist Hospital (MMSH) has height nosocomial infection of 41.4%, with the least Aminu Kano Teaching Hospital (AKTH) has 29%. Among the Site of infection, 34.8% isolates were wounds Swabs (SSIs), urine (UTI) 31.2%, an least was nasal intubation 11.6%. Among pathogens isolated E. coli is the most prominent organism with 26.1% and the least Streptococcus pyogenes (7.9%). This study showed that the prevalence of Prolong hospital stay in Kano was 40.34%, AKTH 39.53% and MAWSH 28.91%. The prevalence of nosocomial infection was 34.3%. Gram-negative  bacteria were the predominant isolates.