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Title

CENTRAL NERVOUS SYSTEM DEPRESSANTS POISONING AND VENTILATOR ASSOCIATED PNEUMONIA: AN UNDERRATED RISK FACTOR AT THE TOXICOLOGICAL INTENSIVE CARE UNIT

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Abstract

 Background: VENTILATOR-ASSOCIATED PNEUMONIA (VAP) is the main cause of nosocomial infection at INTENSIVE CARE UNITs (ICUs), which causes high mortality and morbidity.Objectives: The objective of the present survey was to identify the VAP risk and prognostic factors among poisoned patients, who were admitted to the toxicological ICU (TICU), especially central nervous system (CNS) depressants due to their prevalence and importance.Patients and Methods: A case-control study was conducted at the Loghman Hakim hospital between March 2013 and March 2014. Among 300 poisoned patients with mechanical ventilator³48 hours, 150 patients, who had developed microbiologically-confirmed VAP were considered as the VAP group and 150 without VAP were defined as the control group. The following data were collected; age, gender, type of poisoning, glasgow coma score, Acute physiology and chronic health evaluation (APACHE) II score, length of hospital stay, previous antibiotic use, microbial culture of the trachea, body temperature, leukocyte count, and patients’ outcome. Based on the type of poisoning, patients were divided into three groups including: opioid, CNS depressants and others. All data were expressed as means (SD) for continuous variables and frequencies for categorical variables. Logistic regression was used to determine the relationship between RISK FACTORS and VAP.Results: The mean age of the patients was 33.9±14.3 years. The probable VAP incidence and mortality were 22% and 18.6%, respectively. The rate of CNS depressant versus opioid use (odds ratio, 3.74; P<0.027), APACHE II (odds ratio, 1.28; P<0.000) and length of hospital stay (odds ratio, 2.15; P<0.000) were the independent RISK FACTORS for VAP. While, the APACHE II score (odds ratio, 1.12; P<0.044) and length of hospital stay (odds ratio, 2.15; P<0.000) were the independent predictors of VAP mortality among these patients. The most common microorganisms in VAP cases were Methicillin-Resistant Staphylococcus aureus (MRSA) and Acinetobacter sp. (56.7% and 12.7%, respectively).Conclusions: Central nervous system depressant was an important risk factor for VAP among poisoned patients. Hypoventilation due to CNS depression can lead to VAP. The APACHE II and length of hospital stay were shown as independent predictors of VAP and mortality among these patients.

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    APA: Copy

    HASHEMIAN, MORTEZA, TALAIE, HALEH, AKBARPOUR, SAMANEH, MAHDAVINEJAD, AREZOU, & MOZAFARI, NASER. (2016). CENTRAL NERVOUS SYSTEM DEPRESSANTS POISONING AND VENTILATOR ASSOCIATED PNEUMONIA: AN UNDERRATED RISK FACTOR AT THE TOXICOLOGICAL INTENSIVE CARE UNIT. IRANIAN RED CRESCENT MEDICAL JOURNAL (IRCMJ), 18(1), 0-0. SID. https://sid.ir/paper/293395/en

    Vancouver: Copy

    HASHEMIAN MORTEZA, TALAIE HALEH, AKBARPOUR SAMANEH, MAHDAVINEJAD AREZOU, MOZAFARI NASER. CENTRAL NERVOUS SYSTEM DEPRESSANTS POISONING AND VENTILATOR ASSOCIATED PNEUMONIA: AN UNDERRATED RISK FACTOR AT THE TOXICOLOGICAL INTENSIVE CARE UNIT. IRANIAN RED CRESCENT MEDICAL JOURNAL (IRCMJ)[Internet]. 2016;18(1):0-0. Available from: https://sid.ir/paper/293395/en

    IEEE: Copy

    MORTEZA HASHEMIAN, HALEH TALAIE, SAMANEH AKBARPOUR, AREZOU MAHDAVINEJAD, and NASER MOZAFARI, “CENTRAL NERVOUS SYSTEM DEPRESSANTS POISONING AND VENTILATOR ASSOCIATED PNEUMONIA: AN UNDERRATED RISK FACTOR AT THE TOXICOLOGICAL INTENSIVE CARE UNIT,” IRANIAN RED CRESCENT MEDICAL JOURNAL (IRCMJ), vol. 18, no. 1, pp. 0–0, 2016, [Online]. Available: https://sid.ir/paper/293395/en

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