[Significance of adipose tissue mass for the clinical course of pneumonia associated with decompensated CHF].

BACKGROUND: Pneumonia is one of most important causes of in-hospital mortality in patients with decompensated chronic heart failure (CHF). AIM: To evaluate the effect of adipose tissue mass and body weight index (BWI) on prognosis for patients with communityacquired pneumonia and decompensated CHF. MATERIALS AND METHODS: The study included 286 patients aged 53-90 with BWI 18.5-24.9 kg/m2 who were hospitalized in cardiology and therapy departments of an emergency care hospital for decompensated CHF and pneumonia, which was verified within the first day of admission. Body composition was analyzed using a bioimpedance analyzer of body water sectors (ABC-01, Medass); BWI was calculated for all patients. Sputum samples collected with proper observation of sterility rules were analyzed in a specialized microbiological laboratory. Statistical analysis was performed with methods of binary logistic regression, Kaplan-Meier, Cox regression, and two-step cluster analysis using the IBM SPSS Statistics 20 software. RESULTS: Assessing the body composition showed that groups with sputum Str. Pneumonia and mixed infection differed in indexes of lean body mass and adipose tissue mass but not in BWI. In-the mixed group, the in-hospital mortality was 38.71% and the one-year mortality - 95.16%. In the group with Str. Pneumonia in the sputum culture, the in-hospital mortality was 18.52% and the one-year mortality - 42.59%. The two-step cluster analysis allowed to isolate two clusters in the structure of the studied totality. All patients of the first cluster died during the first 9 months of the year following hospitalization. They were distinguished by lower values of lean body mass and BWI, older age, and the presence of mixed infection in the sputum culture in 39.1% of cases. CONCLUSION: In the structure of the studied totality, the most important risk factor for in-hospital mortality and one-year death was the value of adipose tissue mass.

[Prognostic role of body composition in patients with pneumonia associated with decompensated CHF].

AIM: To evaluate the effect of body composition on prediction of community-acquired pneumonia caused by Str. pneumoniae in patients with decompensated CHF. MATERIALS AND METHODS: The study included 216 patients. The pneumonia agent was identified by sputum culture. Body composition with determining lean body mass and fat mass was evaluated using a bio-impedance analysis; body mass index (BMI) was calculated. Patients with BMI 18.5-24.9 kg/m2 were included into the study. Statistical analysis of obtained data was performed using the IBM SPSS Statistics 20 software. RESULTS: The in-hospital mortality was 13.4 %; the one-year mortality was 29.6 %. Fat mass strongly, negatively correlated with a fatal outcome within a year, and the degree of lean body mass shortage moderately, positively correlated with the life span of patients. CONCLUSION: Body composition is significantly predictive for patients with decompensated CHF and community-acquired pneumonia caused by Str. pneumoniae.