Severe virus associated community acquired pneumonia: predictors of lethality

Despite the fact that the influenza virus pathogenicity factors have been well studied in vitro, in vivo lack is presented in understanding of the those risk factors, objective and laboratory parameters, which related most of all to the fatal virus-associated community-aquired pneumonia (CAP). Th...

Full description

Bibliographic Details
Main Authors: T. O. Pertseva, T. V. Kireyeva, K. O. Bielosludtseva, S. V. Boltyanskiy, O. P. Nazarenko
Format: Article
Language:English
Published: Zaporozhye State Medical University 2016-06-01
Series:Zaporožskij Medicinskij Žurnal
Subjects:
Online Access:http://zmj.zsmu.edu.ua/article/view/76924/73883
_version_ 1818959774037835776
author T. O. Pertseva
T. V. Kireyeva
K. O. Bielosludtseva
S. V. Boltyanskiy
O. P. Nazarenko
author_facet T. O. Pertseva
T. V. Kireyeva
K. O. Bielosludtseva
S. V. Boltyanskiy
O. P. Nazarenko
author_sort T. O. Pertseva
collection DOAJ
description Despite the fact that the influenza virus pathogenicity factors have been well studied in vitro, in vivo lack is presented in understanding of the those risk factors, objective and laboratory parameters, which related most of all to the fatal virus-associated community-aquired pneumonia (CAP). That is why the purpose of the study was to study the clinical and laboratory characteristics of patients with severe virus-associated CAP during the 2015–2016 influenza epidemic and their role as predictors of patients’ mortality. To do this, patients with severe virus-associated CAP were examined. They were divided into 2 groups depending on the outcome of treatment: 1st- deaths from the virus-associated severe CAP and 2nd - patients with successful treatment of the severe virus-associated CAP. Special statistical method was used – one-dimensional analysis of variance to compare individual parameters between the two groups of patients (surviving and deceased). Pearson χ2 test (contingency table) was used for categorical variables. Factors that were significant predictors of mortality as a result of univariate analysis were tested using multifactorial analysis using logistic regression. In the final model, each parameter must have had a significant impact on mortality. It was found that risk factors for death in patients with severe virus-associated CAP according to univariate analysis were: presence of obesity, disorders of consciousness, BH≥35 min, SaO2<80%, PaO2<50 mm Hg, mmHg PaCO2 ≥50 mmHg during hospitalization. Independent predictors of mortality according to the logistic regression are the presence of obesity, disorders of consciousness, PaO2<50 mm Hg, mmHg PaCO2 ≥50 mmHg. Given that among clinical and laboratory parameters key parameters that significantly influence the outcome, are indicators of the severity of hypoxia and hypoxemia, a major step in determining the severity of the patients with virus-associated severe emergency is diagnostics of blood gas composition, and during treatment – early sufficient and adequate oxygen therapy with regular monitoring of its effectiveness and timely correction.
first_indexed 2024-12-20T11:46:59Z
format Article
id doaj.art-ed13a942b2bf4716a83bbdc4fee1ca72
institution Directory Open Access Journal
issn 2306-4145
2310-1210
language English
last_indexed 2024-12-20T11:46:59Z
publishDate 2016-06-01
publisher Zaporozhye State Medical University
record_format Article
series Zaporožskij Medicinskij Žurnal
spelling doaj.art-ed13a942b2bf4716a83bbdc4fee1ca722022-12-21T19:41:51ZengZaporozhye State Medical UniversityZaporožskij Medicinskij Žurnal2306-41452310-12102016-06-0133845Severe virus associated community acquired pneumonia: predictors of lethalityT. O. Pertseva T. V. KireyevaK. O. Bielosludtseva S. V. BoltyanskiyO. P. NazarenkoDespite the fact that the influenza virus pathogenicity factors have been well studied in vitro, in vivo lack is presented in understanding of the those risk factors, objective and laboratory parameters, which related most of all to the fatal virus-associated community-aquired pneumonia (CAP). That is why the purpose of the study was to study the clinical and laboratory characteristics of patients with severe virus-associated CAP during the 2015–2016 influenza epidemic and their role as predictors of patients’ mortality. To do this, patients with severe virus-associated CAP were examined. They were divided into 2 groups depending on the outcome of treatment: 1st- deaths from the virus-associated severe CAP and 2nd - patients with successful treatment of the severe virus-associated CAP. Special statistical method was used – one-dimensional analysis of variance to compare individual parameters between the two groups of patients (surviving and deceased). Pearson χ2 test (contingency table) was used for categorical variables. Factors that were significant predictors of mortality as a result of univariate analysis were tested using multifactorial analysis using logistic regression. In the final model, each parameter must have had a significant impact on mortality. It was found that risk factors for death in patients with severe virus-associated CAP according to univariate analysis were: presence of obesity, disorders of consciousness, BH≥35 min, SaO2<80%, PaO2<50 mm Hg, mmHg PaCO2 ≥50 mmHg during hospitalization. Independent predictors of mortality according to the logistic regression are the presence of obesity, disorders of consciousness, PaO2<50 mm Hg, mmHg PaCO2 ≥50 mmHg. Given that among clinical and laboratory parameters key parameters that significantly influence the outcome, are indicators of the severity of hypoxia and hypoxemia, a major step in determining the severity of the patients with virus-associated severe emergency is diagnostics of blood gas composition, and during treatment – early sufficient and adequate oxygen therapy with regular monitoring of its effectiveness and timely correction.http://zmj.zsmu.edu.ua/article/view/76924/73883PneumoniaMortalityInfluenza Viruses
spellingShingle T. O. Pertseva
T. V. Kireyeva
K. O. Bielosludtseva
S. V. Boltyanskiy
O. P. Nazarenko
Severe virus associated community acquired pneumonia: predictors of lethality
Zaporožskij Medicinskij Žurnal
Pneumonia
Mortality
Influenza Viruses
title Severe virus associated community acquired pneumonia: predictors of lethality
title_full Severe virus associated community acquired pneumonia: predictors of lethality
title_fullStr Severe virus associated community acquired pneumonia: predictors of lethality
title_full_unstemmed Severe virus associated community acquired pneumonia: predictors of lethality
title_short Severe virus associated community acquired pneumonia: predictors of lethality
title_sort severe virus associated community acquired pneumonia predictors of lethality
topic Pneumonia
Mortality
Influenza Viruses
url http://zmj.zsmu.edu.ua/article/view/76924/73883
work_keys_str_mv AT topertseva severevirusassociatedcommunityacquiredpneumoniapredictorsoflethality
AT tvkireyeva severevirusassociatedcommunityacquiredpneumoniapredictorsoflethality
AT kobielosludtseva severevirusassociatedcommunityacquiredpneumoniapredictorsoflethality
AT svboltyanskiy severevirusassociatedcommunityacquiredpneumoniapredictorsoflethality
AT opnazarenko severevirusassociatedcommunityacquiredpneumoniapredictorsoflethality