scholarly journals Epidemiology of Adenovirus Pneumonia and Risk Factors for Bronchiolitis Obliterans in Children During an Outbreak in Jilin, China

2021 ◽  
Vol 9 ◽  
Author(s):  
Xiuhua Yu ◽  
Yucong Ma ◽  
Yang Gao ◽  
Hailong You

Background: Jilin Province, located in northeastern China, recently experienced a human adenovirus (HAdV) epidemic. Few studies involving hospitalized pediatric patients with pneumonia caused by HAdV in our region exist. HAdV pneumonia can lead to severe long-term respiratory sequelae, such as post-infectious bronchiolitis obliterans (PIBO), which has a poor prognosis and greatly influences the quality of life of pediatric patients. However, studies on the risk factors for PIBO are limited.Objective: To describe the HAdV pneumonia prevalence and determine potential risk factors for PIBO development among hospitalized children in Jilin Province, China.Methods: The data of 187 children with HAdV pneumonia (10 months−12 years old) admitted to the First Hospital of Jilin University during an outbreak between October 2018 and January 2020 were retrospectively studied. We analyzed the epidemiological characteristics of HAdV pneumonia, focusing on severe HAdV pneumonia (66 cases). The risk factors for BO development were determined by comparing the demographic and clinical data of the BO and non-BO groups.Results: The largest number of HAdV pneumonia cases occurred in January 2019 (severe n = 18, general n = 21), followed by December 2018 (severe n = 14, general n = 11), June 2019 (general n = 17), July 2019 (general, n = 14), and May 2019 (general, n = 13). In total, 91.98% of the children with HAdV pneumonia were <6 years old (172/187), and 50% of the pediatric patients with severe HAdV pneumonia were <2 years old (33/66). We found that 30.3% of the severe cohort developed BO (20/66), and the strongest independent risk factors for PIBO were persistent wheezing (OR 181.776, 95% CI, 3.385–9,761.543) and acute respiratory failure (OR 51.288, 95% CI, 1.858–1,415.441) during a severe pneumonia episode.Conclusions: The largest number of HAdV pneumonia cases, especially severe cases, occurred in winter in Northeast China, followed by summer. The majority of children admitted with HAdV pneumonia were <6 years old, and half of severe HAdV pneumonia patients were <2 years old. Children who had persistent wheezing or acute respiratory failure during the acute phase of severe HAdV pneumonia were prone to the development of BO.

2021 ◽  
pp. 088506662198924
Author(s):  
Matthew Schrader ◽  
Matheni Sathananthan ◽  
Niranjan Jeganathan

Introduction: Idiopathic pulmonary fibrosis (IPF) patients admitted to the ICU with acute respiratory failure (ARF) are known to have a poor prognosis. However, the majority of the studies published to date are older and had small sample sizes. Given the advances in ICU care since the publication of these studies, we sought to reevaluate the outcomes and risk factors associated with mortality in these patients. Methods: Retrospective study using a large multi-center ICU database. We identified 411 unique patients with IPF admitted with ARF between 2014-2015. Results: Of all IPF patients admitted to the ICU with ARF, 81.3% required mechanical ventilation (MV): 48.9% invasive and 32.4% non-invasive alone. The hospital mortality rate was 34.5% for all patients; 48.8% in patients requiring invasive MV, 21.8% in those requiring non-invasive MV and 19.5% with no MV. In multiple regression analyses, age, APACHE score, invasive MV, and hyponatremia at admission were associated with increased mortality whereas post-op status was associated with lower mortality. In patients requiring invasive MV, baseline PaO2/FiO2 ratio was also predictive of mortality. Non-pulmonary organ failures were present in less than 20% of the patients. Conclusions: Although the overall mortality rate for IPF patients admitted to the ICU with ARF has improved, the mortality rates for patients requiring invasive MV remains high at approximately 50%. Older age, high APACHE score, and low baseline PaO2/FiO2 ratio are factors predictive of increased mortality in this population.


2016 ◽  
Vol 60 (4) ◽  
pp. 142-143
Author(s):  
Martha A. Q. Curley ◽  
David Wypij ◽  
R. Scott Watson ◽  
Mary Jo C. Grant ◽  
Lisa A. Asaro ◽  
...  

2009 ◽  
Vol 67 (2a) ◽  
pp. 229-234 ◽  
Author(s):  
Kátia Regina Penha da Silva ◽  
Regina Maria Papais Alvarenga ◽  
Oscar Fernandez y Fernandez ◽  
Hélcio Alvarenga ◽  
Luiz Claudio Santos Thuler

PURPOSE: To evaluate potential risk factors for the development of multiple sclerosis in Brazilian patients. METHOD: A case control study was carried out in 81 patients enrolled at the Department of Neurology of the Hospital da Lagoa in Rio de Janeiro, and 81 paired controls. A standardized questionnaire on demographic, social and cultural variables, and medical and family history was used. Statistical analysis was performed using descriptive statistics and conditional logistic regression models with the SPSS for Windows software program. RESULTS: Having standard vaccinations (vaccinations specified by the Brazilian government) (OR=16.2; 95% CI=2.3-115.2), smoking (OR=7.6; 95% CI=2.1-28.2), being single (OR=4.7; 95% CI=1.4-15.6) and eating animal brain (OR=3.4; 95% CI=1.2-9.8) increased the risk of developing MS. CONCLUSIONS: RESULTS of this study may contribute towards better awareness of the epidemiological characteristics of Brazilian patients with multiple sclerosis.


2020 ◽  
Author(s):  
Shiyao Wang ◽  
Xinran Zhang ◽  
Yanhong Ren ◽  
Yi Zhang ◽  
Ye Tian ◽  
...  

Abstract Background: This study aims to identify prognostic factors for mortality of patients with anti-melanoma differentiation-associated protein 5 (anti-MDA5) or anti-aminoacyl-RNA synthetase (anti-ARS) antibodies positive and acute respiratory failure in the intensive care unit.Methods: Clinical characteristics, laboratory test findings, imaging performance, and management were retrospectively collected in all cases with anti-MDA5 and anti-ARS antibodies positive, as well as follow-up survival data. Risk factors related to prognosis were identified by Cox regression analysis.Results: The 28-day mortality of all patients was 68.8% (n=44/64). The patients who died were more likely to have anti-MDA5 antibody(p<0.001), presented more Gottron papules(p=0.021) or heliotrope rash(p=0.008), had a relatively lower level of WBC(p=0.038), CRP(p=0.004), and had a higher level of LDH(p=0.029), serum ferritin(p=0.002). The main risk factors associated with 28-day mortality were anti-MDA5 antibody positive [HR 10.827 (95% CI: 4.261-27.514), p<0.001], presence of Gottron papules [2.299 (1.203-4.394), p=0.012], heliotrope rash [3.423 (1.773-6.606), p<0.001], and arthritis/arthralgia [2.365 (1.130-4.948), p=0.022). At a median of 14 (IQR 6.33-35.0) months of follow-up, the overall mortality of all patients was 75.0% (n=48/64). The non-survivors were more likely to own anti-MDA5 antibody(p<0.001), had a higher rate of Gottron papules(p=0.020) or heliotrope rash(p=0.014), had lower PFR(p=0.032) while ICU admission, and existed a higher level of serum ferritin(p=0.005). Main risk factors associated with overall mortality were consistent with risk factors for 28-day mortality. Conclusions: Anti-MDA5 antibody positive, presence of Gottron papules, heliotrope rash, or arthritis/arthralgia were the main independent risk factors of poor prognosis for IIM patients admitted to the ICU due to acute respiratory failure.


2020 ◽  
pp. 219256822096007
Author(s):  
Nathan J. Lee ◽  
Michael Fields ◽  
Venkat Boddapati ◽  
Justin Mathew ◽  
Daniel Hong ◽  
...  

Study Design: Retrospective cohort. Objective: To provide a national-level assessment of the short-term outcomes after spinal deformity surgery in pediatric patients with cerebral palsy. Methods: A national, prospectively collected database was queried to identify pediatric (≤18 years) patients with cerebral palsy, who underwent spinal fusion surgery from 2012 to 2017. Separate multivariate analyses were performed for the primary outcomes of interest including extended length of stay (>75th percentile, >8 days), and readmissions within 90 days after the index admission. Results: A total of 2856 patients were reviewed. The mean age ± standard deviation was 12.8 ± 2.9 years, and 49.4% of patients were female. The majority of patients underwent a posterior spinal fusion (97.0%) involving ≥8 levels (79.9%) at a teaching hospital (96.6%). Top medical complications (24.5%) included acute respiratory failure requiring mechanical ventilation (11.4%), paralytic ileus (8.2%), and urinary tract infections (4.6%). Top surgical complications (40.7%) included blood transfusion (35.6%), wound complication (4.9%), and mechanical complication (2.7%). The hospital cost for patients with a length of hospital stay >8 days ($113 669) was nearly double than that of those with a shorter length of stay ($68 411). The 90-day readmission rate was 17.6% (mean days to readmission: 30.2). The most common reason for readmission included wound dehiscence (21.1%), surgical site infection (19.1%), other infection (18.9%), dehydration (16.9%), feeding issues (14.5%), and acute respiratory failure (13.1%). Notable independent predictors for 90-day readmissions included preexisting pulmonary disease (odds ratio [OR] 1.5), obesity (OR 3.4), cachexia (OR 27), nonteaching hospital (OR 3.5), inpatient return to operating room (OR 1.9), and length of stay >8 days (OR 1.5). Conclusions: Efforts focused on optimizing the perioperative pulmonary, hematological, and nutritional status as well as reducing wound complications appear to be the most important for improving clinical outcomes.


2017 ◽  
Vol 15 (3) ◽  
pp. 152-159 ◽  
Author(s):  
Li Huang ◽  
Yaping Xie ◽  
Huifeng Fan ◽  
Gen Lu ◽  
Jialu Yu ◽  
...  

Bronchiolitis obliterans (BO) is in general a rare and life-threatening form of non-reversible obstructive lung disease in which the bronchioles are compressed and narrowed by fibrosis and/or inflammation. The purpose of this study was to evaluate the clinical features of BO in pediatric patients and explore its risk factors. The medical records of 35 pediatric patients with BO at Guangzhou Women and Children’s Medical Center were evaluated. The age at onset of symptoms was 2–42 months (mean 13.3 ± 8.9 months), with age at diagnosis of 5 months–4 years (mean 17.8 ± 9.0 months). High-resolution computed tomography findings included mosaic pattern (100%), atelectasis (37.1%), air trapping (31.4%), and bronchiectasis (20.0%). Three patients received lung biopsies and mainly exhibited an inflammatory process surrounding the lumen of bronchioles. BO predominantly resulted from post-infectious causes (91.4%) which were primarily caused by adenovirus (50%), followed by Mycoplasma pneumoniae (46.7%) and influenza (20%). Pulmonary function tests (PFTs) showed severe and fixed airflow obstruction, decreased compliance, and increased resistance. No significant difference was found between before and after steroid treatment ( P > 0.05). Two patients died owing to severe pulmonary complications, one of whom had inherent immunodeficiency. Our study suggests that the occurrence of BO, especially post-infectious BO, in China is relatively high and might result from primary immunodeficiency diseases in severe cases. Recurrent aspiration pneumonia caused by congenital dysplasia of the larynx and vaccination not on schedule might be potential risk factors for persistent and recurrent BO.


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