Reduction in mean platelet volume in children with acute bronchiolitis

Role of Serum Endocan Levels in Children with Bacterial and Viral Pneumonia: A Prospective, Case-Control Study

Introduction and Objective: Endocan has been used as a biomarker in the differential diagnosis of pulmonary diseases in adults. However, there are only a limited number of studies on its use in children. In this context, the objective of this study is to evaluate the relationship between serum endocan levels in children with bacterial and viral pneumonia. Materials and Methods: The population of this prospective case-control study consisted of hospitalized children aged 1 month to 15 years diagnosed with pneumonia between August 2020 and July 2021, whereas the control group consisted of randomly selected healthy children. The demographic and clinical characteristics of all participants were recorded. Participants' endocan levels, white blood cell (WBC) and neutrophil counts, and C-reactive protein (CRP) and procalcitonin (PCT) levels were measured within the scope of the laboratory tests. Results: The study sample consisted of 41 children, of whom 21 had bacterial pneumonia and 20 had viral pneumonia, whereas the control group consisted of 47 healthy children. Serum endocan levels, WBC and neutrophil counts, and PCT and CRP levels were significantly higher in children with bacterial pneumonia than in children with viral pneumonia and healthy children (P < 0.05). Additionally, serum endocan levels were significantly higher in children with viral pneumonia than in healthy children (P < 0.001). The endocan levels in children with bacterial pneumonia were significantly associated with the need for intensive care (P = 0.004) and correlated with the length of hospital stay (LoS) (r = 0.592, P = 0.005). Conclusion: The findings of this study indicated that serum endocan levels can be used in the differential diagnosis of bacterial and viral pneumonias. Additionally, it was found that the need for intensive care and LoS were significantly correlated with endocan levels in children with bacterial pneumonia.

Salivary C-Reactive Protein and Mean Platelet Volume in the Diagnosis and Follow-Up of Community-Acquired Pneumonia in Infants

Background: Community-acquired pneumonia (CAP) in infants is a major cause of morbidity and mortality, especially in developing countries. Increased salivary C-reactive protein (CRP) levels have been demonstrated in neonatal pneumonia and other diseases. We investigated the applicability of CRP and mean platelet volume (MPV) in the diagnosis and follow-up of CAP in infants. Methods: This prospective observational study included 45 infants admitted for CAP. We measured serum and salivary CRP levels via ELISA, while MPV was measured using an automated blood cell counter. Results: Both salivary and serum CRP values were significantly different in the studied population between admission and follow-up (P = 0.001 and P < 0.0001, respectively). The same was observed for MPV (P < 0.0001). We found significant positive correlations between serum and salivary CRP (r = 0.652, P < 0.0001) and between serum CRP and MPV (r = 0.495, P = 0.001), as well as between salivary CRP and MPV (r = 0.439, P = 0.003). Receiver operating curve analysis showed that salivary CRP at a cutoff value of 3.2 ng/L had a sensitivity of 97.2% and specificity of 90%, while MPV at a cutoff value of 8.4 fL showed 91% sensitivity and 90% specificity. Conclusions: The present study showed that both salivary CRP and MPV are reliable diagnostic markers of CAP in infants.

Comparison of clinically related factors and treatment approaches in patients with acute bronchiolitis

Aim:

Acute bronchiolitis is a lower respiratory tract infection caused by viral agents in children aged under two years. Treatment includes hydration, oxygen, nebulized salbutamol, and intravenous steroids. This study aimed to determine the clinically related factors, the effect of viral agents on the clinical picture, and the efficacy of treatment methods in patients admitted with acute bronchiolitis.

Material and Methods:

Patients aged under two years of age who were hospitalized with a diagnosis of moderate/severe acute bronchiolitis between March 2015 and March 2019 were included in the study. Demographic data, hospitalization time, body temperature, presence of congenital heart disease, history of atopy, acute-phase reactants, mean platelet volume values, and respiratory virus panel results were recorded. The treatment modalities, length of hospitalization, intensive care hospitalization, and high-flow nasal cannula oxygen therapy (HFNC) were recorded.

Results:

Four hundred twenty-two patients were included in the study. The duration of hospitalization was found to be significantly longer in patients aged under one year and in patients with acyanotic congenital heart disease. A single viral agent was detected in 69 (51.9%) patients. Rhinovirus was detected in 70 patients and RSV was detected in 37. The duration of hospitalization was found to be significantly shorter in patients who received only oxygen and/or intravenous fluid treatment compared with those who received nebulized salbutamol and/or intravenous steroids. In addition, and there was no significant difference between the groups in terms of HFNC and hospitalization in the intensive care unit.

Conclusion:

Rhinovirus was the most common cause of acute bronchiolitis in our study. It was observed that congenital heart disease prolonged the length of hospitalization. In the treatment approaches, it was observed that hydration and oxygen therapy were sufficient treatment methods for the patients, in accordance with the recommendations of the American Academy of Pediatrics, and giving nebulized therapy prolonged the hospitalization period due to the treatment discontinuation steps.