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Lin X, Shi H, Zheng F, Zeng J. Simple and sensitive sandwich-like voltammetric immunosensing of procalcitonin. ANAL SCI 2024; 40:541-547. [PMID: 38227088 DOI: 10.1007/s44211-023-00485-4] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/25/2023] [Accepted: 11/29/2023] [Indexed: 01/17/2024]
Abstract
Procalcitonin (PCT) is a reliable biomarker in the early diagnosis of septicemia, pyemia and stroke-associated pneumonia. In this work, through preparing β-cyclodextrin/graphene (CD/GN) nanohybrid as carrier and amplifier simultaneously to band antibodies and probe molecules, a simple and innovative sandwich-like voltammetric immunosensor was proposed for the sensitive and effective determination of PCT. Owing to the host-guest recognition property, the antibodies of PCT can enter into the CD cavities to generate a stable complex; meanwhile, aminopyrene (AP) were introduced as the signal probe and it was adsorbed on the surface of GN via aminopyrine π-πinteraction. Based on the signal change from AP as a response signal which exhibits linearity to the concentration of PCT, a highly sensitive sandwich-type voltammetric immunosensor was developed successfully after optimizing various key parameters. The results demonstrated that the developed sensor had a considerably low detection limit (0.003 pg mL-1) and wide linearity of 0.01 pg mL-1 to 20.0 ng mL-1. This work offered a very simple and sensitive sensing strategy for PCT and other biomarkers via altering the specific antibodies simply, showing great potential applications.
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Affiliation(s)
- Xinfeng Lin
- Department of Respiratory and Critical Care Medicine, Fuzhou First Hospital Affiliated With Fujian Medical University, Fuzhou, People's Republic of China.
| | - Honghui Shi
- Department of Respiratory and Critical Care Medicine, Fuzhou First Hospital Affiliated With Fujian Medical University, Fuzhou, People's Republic of China
| | - Fu Zheng
- Department of Respiratory and Critical Care Medicine, Fuzhou First Hospital Affiliated With Fujian Medical University, Fuzhou, People's Republic of China
| | - Jiajun Zeng
- Department of Respiratory and Critical Care Medicine, Fuzhou First Hospital Affiliated With Fujian Medical University, Fuzhou, People's Republic of China
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2
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Li M, Liu H, Xu M, Yu B, Guo M, Wang X, Shi G, Zhou R. Glial Fibrillary Acidic Protein as a Potential Indicator for Symptomatic Intracranial Hemorrhage in Acute Ischemic Patients Undergoing Endovascular Thrombectomy. Clin Interv Aging 2024; 19:123-132. [PMID: 38283765 PMCID: PMC10813222 DOI: 10.2147/cia.s448180] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/04/2023] [Accepted: 01/17/2024] [Indexed: 01/30/2024] Open
Abstract
Background The correlation between glial fibrillary acidic protein (GFAP) and symptomatic intracranial hemorrhage (sICH) in acute ischemic stroke (AIS) patients undergoing endovascular thrombectomy (EVT) treatment remains uncertain. We aimed to assess the association between levels of GFAP in the bloodstream and the occurrence of sICH. Methods Between June 2019 and May 2023, 142 consecutive AIS patients undergoing EVT at Stroke Center and 35 controls from the Physical Examination Center were retrospectively included. The levels of GFAP in the bloodstream were quantified using enzyme-linked immunosorbent assay prior to endovascular treatment (T1) and 24 h after the procedure (T2). The identification of sICH was based on the Heidelberg Bleeding Classification. Results Serum GFAP levels at T1 in AIS patients were significantly higher than those in the controls (0.249 [0.150-0.576] versus 0.065 [0.041-0.110] ng/mL, p = 0.001), and there was a notably elevation in GFAP levels at T2 compared to T1 (3.813 [1.474, 5.876] versus 0.249 [0.150-0.576] ng/mL, p = 0.001). Of the 142 AIS patients, 18 (14.5%) had sICH after EVT. Serum GFAP levels at T2 showed significant associations with sICH in both the unadjusted model (OR 1.513, 95% CI 1.269-1.805, p = 0.001) and multivariable adjusted model (OR 1.518, 95% CI 1.153-2.000, p = 0.003). Furthermore, the addition of GFAP at T2 to conventional model resulted in a significant enhancement of risk reclassification for sICH (integrated discrimination improvement [IDI] 0.183, 95% CI 0.070-0.295, p = 0.001). Conclusion Serum GFAP levels were notably increased in AIS patients 24 h after EVT. Elevated GFAP levels were correlated to an elevated risk of sICH. GFAP could potentially serve as a dependable indicator for sICH in AIS individuals who treated with EVT.
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Affiliation(s)
- Minghao Li
- Stroke Center, Taixing People’s Hospital, Taixing, Jiangsu, People’s Republic of China
- Department of Vascular Surgery, Taixing People’s Hospital, Taixing, Jiangsu, People’s Republic of China
| | - Hua Liu
- Stroke Center, Taixing People’s Hospital, Taixing, Jiangsu, People’s Republic of China
- Department of Neurology, Taixing People’s Hospital, Taixing, Jiangsu, People’s Republic of China
| | - Mingyang Xu
- Stroke Center, Taixing People’s Hospital, Taixing, Jiangsu, People’s Republic of China
- Department of Neurology, Taixing People’s Hospital, Taixing, Jiangsu, People’s Republic of China
| | - Baiyang Yu
- Department of Neurology, Taixing People’s Hospital, Taixing, Jiangsu, People’s Republic of China
- Department of Neurology, Taixing Clinical College of Bengbu Medical College, Bengbu, Anhui, People’s Republic of China
| | - Minwang Guo
- Stroke Center, Taixing People’s Hospital, Taixing, Jiangsu, People’s Republic of China
- Department of Neurology, Taixing People’s Hospital, Taixing, Jiangsu, People’s Republic of China
| | - Xiaorong Wang
- Stroke Center, Taixing People’s Hospital, Taixing, Jiangsu, People’s Republic of China
- Department of Neurology, Taixing People’s Hospital, Taixing, Jiangsu, People’s Republic of China
| | - Guomei Shi
- Stroke Center, Taixing People’s Hospital, Taixing, Jiangsu, People’s Republic of China
- Department of Neurology, Taixing People’s Hospital, Taixing, Jiangsu, People’s Republic of China
| | - Rujuan Zhou
- Stroke Center, Taixing People’s Hospital, Taixing, Jiangsu, People’s Republic of China
- Department of Neurology, Taixing People’s Hospital, Taixing, Jiangsu, People’s Republic of China
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3
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Wang X, Xia J, Shan Y, Yang Y, Li Y, Sun H. Predictive value of the Oxford Acute Severity of Illness Score in acute stroke patients with stroke-associated pneumonia. Front Neurol 2023; 14:1251944. [PMID: 37731859 PMCID: PMC10507346 DOI: 10.3389/fneur.2023.1251944] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/03/2023] [Accepted: 08/14/2023] [Indexed: 09/22/2023] Open
Abstract
Background Stroke-associated pneumonia (SAP) is associated with a poor prognosis and a high mortality rate in stroke patients. However, the accuracy of early prediction of SAP is insufficient, and there is a lack of effective prognostic evaluation methods. Therefore, in this study, we investigated the predictive value of the Oxford Acute Severity of Illness Score (OASIS) in SAP to provide a potential reference index for the incidence and prognosis of SAP. Methods We recruited a total of 280 patients with acute ischemic stroke who had been diagnosed and treated in the Zhumadian Central Hospital between January 2021 and January 2023. These patients were divided into an SAP group (86 cases) and a non-SAP group (194 cases) according to SAP diagnostic criteria by expert consensus on the diagnosis and treatment of SAP. We collated general and clinical data from all patients, including the survival of SAP patients during the follow-up period. Multivariate logistic regression was used to analyze the risk factors for SAP. Kaplan-Meier and multivariate COX regression analyses were used to investigate the relationship between OASIS and the prognosis of SAP, and a receiver operating characteristic (ROC) curve was drawn to analyze the predictive value of OASIS for SAP. Results Our analyses identified body temperature, C-reactive protein, procalcitonin, OASIS, and a prolonged length of intensive care unit (ICU) stay as the main risk factors for SAP (all Ps < 0.05). Advanced age and an elevated OASIS were identified as the main risk factors for death in SAP patients (all Ps < 0.05). The risk of death in patients with OASIS of 31-42 points was significantly higher than that in patients with OASIS of 12-20 points (HR = 5.588, 95% CI = 1.531-20.401, P = 0.009). ROC curve analysis further showed that OASIS had a high predictive value for morbidity and the incidence of death in SAP patients. Conclusion OASIS can effectively predict the onset and death of SAP patients and provides a potential reference index for early diagnosis and the prediction of prognosis in patients with SAP. Our findings should be considered in clinical practice.
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Affiliation(s)
- Ximei Wang
- Department of General Critical Care Medicine, Zhumadian Central Hospital, Zhumadian, China
| | - Jianhua Xia
- Department of Neurology, Zhumadian Central Hospital, Zhumadian, China
| | - Yanhua Shan
- Department of General Critical Care Medicine, Zhumadian Central Hospital, Zhumadian, China
| | - Yang Yang
- Department of Scientific Research Management, Zhumadian Central Hospital, Zhumadian, China
| | - Yun Li
- Department of General Critical Care Medicine, Zhumadian Central Hospital, Zhumadian, China
| | - Haiyan Sun
- Department of Neurology, Jilin Province First Auto Work General Hospital, Jilin, China
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4
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Li D, Liu Y, Jia Y, Yu J, Li F, Li H, Ye L, Liao X, Wan Z, Zeng Z, Cao Y. Association between malnutrition and stroke-associated pneumonia in patients with ischemic stroke. BMC Neurol 2023; 23:290. [PMID: 37537542 PMCID: PMC10399066 DOI: 10.1186/s12883-023-03340-1] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/23/2022] [Accepted: 07/20/2023] [Indexed: 08/05/2023] Open
Abstract
BACKGROUND Malnutrition is associated with a high risk of mortality in adults with ischemic stroke (IS). This study aimed to investigate the relationship between malnutrition and the risk of stroke-associated pneumonia (SAP) as only a few studies examined the relationship between malnutrition and the risk of SAP in IS. METHODS Patients were included from emergency departments of five tertiary hospitals in the REtrospective Multicenter study for Ischemic Stroke Evaluation (REMISE) study from January 2020 to December 2020. Malnutrition was defined according to the Controlling Nutritional Status (CONUT), Geriatric Nutritional Risk Index (GNRI), and Prognostic Nutritional Index (PNI) systems. Multivariable logistic regression analysis was used to explore the association between malnutrition and risk of SAP. RESULTS We enrolled 915 patients with IS, 193 (14.75%), 495 (54.1%), and 148 (16.2%) of whom were malnourished according to the PNI, CONUT, and GNRI scores, respectively. SAP occurred in 294 (32.1%) patients. After adjusting for confounding influencing factors in the logistic regression analysis, malnutrition (moderate and severe risk vs. absent malnutrition) was independently associated with an increased risk of SAP based on the PNI (odds ratio [OR], 5.038; 95% confidence interval [CI] 2.435-10.421, P < 0.001), CONUT (OR, 6.941; 95% CI 3.034-15.878, P < 0.001), and GNRI (OR, 2.007; 95% CI 1.186-3.119, P = 0.005) scores. Furthermore, adding malnutrition assessment indices to the A2DS2 score significantly improved the ability to predict SAP by analysis of receiver operating characteristic curves and net reclassification improvement. CONCLUSION Malnutrition was notably prevalent in patients with IS and independently associated with an increased risk of SAP. Further studies are required to identify the effect of interventions on malnutrition to reduce the risk of SAP.
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Affiliation(s)
- Dongze Li
- West China School of Nursing, Sichuan University/ Department of Emergency Medicine, West China School of Medicine, West China Hospital, Sichuan University, Chengdu, China
- Laboratory of Emergency Medicine, Disaster Medical Center, West China School of Medicine, West China Hospital, Sichuan University, Chengdu, China
| | - Yi Liu
- West China School of Nursing, Sichuan University/ Department of Emergency Medicine, West China School of Medicine, West China Hospital, Sichuan University, Chengdu, China
- Laboratory of Emergency Medicine, Disaster Medical Center, West China School of Medicine, West China Hospital, Sichuan University, Chengdu, China
| | - Yu Jia
- Department of General Practice, General Practice Medical Centre, West China School of Medicine, West China Hospital, Sichuan University, Chengdu, China
| | - Jing Yu
- West China School of Nursing, Sichuan University/ Department of Emergency Medicine, West China School of Medicine, West China Hospital, Sichuan University, Chengdu, China
| | - Fanghui Li
- West China School of Nursing, Sichuan University/ Department of Emergency Medicine, West China School of Medicine, West China Hospital, Sichuan University, Chengdu, China
| | - Hong Li
- West China School of Nursing, Sichuan University/ Department of Emergency Medicine, West China School of Medicine, West China Hospital, Sichuan University, Chengdu, China
| | - Lei Ye
- West China School of Nursing, Sichuan University/ Department of Emergency Medicine, West China School of Medicine, West China Hospital, Sichuan University, Chengdu, China
| | - Xiaoyang Liao
- Department of General Practice, General Practice Medical Centre, West China School of Medicine, West China Hospital, Sichuan University, Chengdu, China
| | - Zhi Wan
- West China School of Nursing, Sichuan University/ Department of Emergency Medicine, West China School of Medicine, West China Hospital, Sichuan University, Chengdu, China
| | - Zhi Zeng
- West China School of Nursing, Sichuan University/ Department of Emergency Medicine, West China School of Medicine, West China Hospital, Sichuan University, Chengdu, China.
- Laboratory of Emergency Medicine, Disaster Medical Center, West China School of Medicine, West China Hospital, Sichuan University, Chengdu, China.
- Department of Emergency Medicine, West China School of Medicine, West China Hospital, Sichuan University, 37 Guoxue Road, Chengdu, Sichuan, 610041, China.
| | - Yu Cao
- West China School of Nursing, Sichuan University/ Department of Emergency Medicine, West China School of Medicine, West China Hospital, Sichuan University, Chengdu, China.
- Laboratory of Emergency Medicine, Disaster Medical Center, West China School of Medicine, West China Hospital, Sichuan University, Chengdu, China.
- Department of Emergency Medicine, West China School of Medicine, West China Hospital, Sichuan University, 37 Guoxue Road, Chengdu, Sichuan, 610041, China.
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Xie M, Yuan K, Zhu X, Chen J, Zhang X, Xie Y, Wu M, Wang Z, Liu R, Liu X. Systemic Immune-Inflammation Index and Long-Term Mortality in Patients with Stroke-Associated Pneumonia. J Inflamm Res 2023; 16:1581-1593. [PMID: 37092129 PMCID: PMC10120842 DOI: 10.2147/jir.s399371] [Citation(s) in RCA: 2] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/01/2022] [Accepted: 03/02/2023] [Indexed: 04/25/2023] Open
Abstract
Background Systemic immune inflammation has been investigated as a prognostic marker of different diseases. This study is designed to assess the association of systemic immune-inflammation index (SII) with long-term mortality of stroke-associated pneumonia (SAP) patients. Methods Patients aged ≥18 years with SAP were selected from the Nanjing Stroke Registry Program in China. We retrospectively evaluated systemic immune-inflammation response with SII and pneumonia severity with the pneumonia severity index and the confusion, uremia, elevated respiratory rate, hypotension, and aged 65 years or older score. To explore the correlation between SII and mortality in SAP patients, multivariable Cox regressions and competing risk regressions were conducted. Mediation analysis was also performed to assess the role of pneumonia severity. Results Among 611 patients in the SAP population, death occurred in 164 patients (26.8%) during the median follow-up of 3.0 (1.2-4.6) years. In multivariate analysis, higher SII scores could predict increased mortality in patients with SAP (adjusted hazard ratio 2.061; 95% confidence interval, 1.256-3.383; P = 0.004), and the association was mediated by pneumonia severity. Moreover, adding SII to traditional models improved their predictive ability for mortality. Conclusion Our study displayed that SII was characterized in SAP patients with different prognoses. Elevated SII scores increased the risk of mortality. Further research is required for the clinical practice of the index among SAP patients.
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Affiliation(s)
- Mengdi Xie
- Department of Neurology, Jinling Hospital, Nanjing Medical University, Nanjing, People’s Republic of China
| | - Kang Yuan
- Department of Neurology, Affiliated Jinling Hospital, Medical School of Nanjing University, Nanjing, People’s Republic of China
| | - Xinyi Zhu
- Department of Neurology, Affiliated Jinling Hospital, Medical School of Nanjing University, Nanjing, People’s Republic of China
| | - Jingjing Chen
- Department of Neurology, Changhai Hospital, Navy Medical University, Shanghai, People’s Republic of China
| | - Xiaohao Zhang
- Department of Neurology, Nanjing First Hospital, Nanjing Medical University, Nanjing, People’s Republic of China
| | - Yi Xie
- Department of Neurology, Affiliated Jinling Hospital, Medical School of Nanjing University, Nanjing, People’s Republic of China
| | - Min Wu
- Department of Neurology, Jinling Hospital, Nanjing Medical University, Nanjing, People’s Republic of China
| | - Zhaojun Wang
- Department of Neurology, Affiliated Jinling Hospital, Medical School of Nanjing University, Nanjing, People’s Republic of China
| | - Rui Liu
- Department of Neurology, Affiliated Jinling Hospital, Medical School of Nanjing University, Nanjing, People’s Republic of China
- Rui Liu, Department of Neurology, Affiliated Jinling Hospital, Medical School of Nanjing University, No. 305 East Zhongshan Road, Nanjing, 210000, Jiangsu Province, People’s Republic of China, Tel +86 2584801861, Fax +86 2584805169, Email
| | - Xinfeng Liu
- Department of Neurology, Jinling Hospital, Nanjing Medical University, Nanjing, People’s Republic of China
- Department of Neurology, Affiliated Jinling Hospital, Medical School of Nanjing University, Nanjing, People’s Republic of China
- Stroke Center & Department of Neurology, Division of Life Sciences and Medicine, The First Affiliated Hospital of USTC, University of Science and Technology of China, Hefei, Anhui, People’s Republic of China
- Correspondence: Xinfeng Liu, Department of Neurology, Jinling Hospital, Nanjing Medical University, No. 305 East Zhongshan Road, Nanjing, Jiangsu Province, 210000, People’s Republic of China, Tel +86 2584801861, Fax +86 2584805169, Email
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6
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Xu Y, Qiao H, Yang S, Zhou L, Zhao Y, Xu Q, Miao S, Yuan D, Zhao J, Liu Y. 15-Hydroxyprostaglandin Dehydrogenase Is a Predictor of Stroke-Associated Pneumonia. Front Neurol 2022; 13:893624. [PMID: 35720081 PMCID: PMC9202497 DOI: 10.3389/fneur.2022.893624] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/10/2022] [Accepted: 04/27/2022] [Indexed: 12/25/2022] Open
Abstract
Background and Purpose Stroke is a serious fatal and disabling disease. Stroke-associated pneumonia (SAP) is the most common complication of stroke, which may further aggravate the stroke. The prevention and early prediction of SAP is a key clinical strategy. 15-hydroxyprostaglandin dehydrogenase (15-PGDH) is involved in pneumonia, while its relationship with SAP has yet to be determined. Therefore, we investigated the predictive value of 15-PGDH for SAP and visualized their relationship. Methods Stroke patients were recruited and divided into SAP group and Non-SAP group. Baseline demographic and clinical data were obtained from the medical record system, blood samples were collected to detect relevant variables and 15-PGDH levels. Patient characteristics were compared with a t-test. Binary logistic regression analysis was performed to determine the predictive value of 15-PGDH for SAP. Restricted cubic splines (RCS) were performed to visualize the relationship between 15-PGDH and SAP risk. Finally, the SAP patient characteristics between the severe group and mild group were compared. Results 50 patients were enrolled and divided into SAP group (n = 26) and Non-SAP group (n = 24). 15-PGDH in the SAP group was lower than that in the Non-SAP group (0.258 ± 0.275 vs. 0.784 ± 0.615, p = 0.025). Binary logistic regression analysis revealed that the lower 15-PGDH, the higher the risk of SAP (OR = 0.04, 95%CI, 0.010–0.157, p < 0.001). The RCS model showed the L-shaped relationship between 15-PGDH and SAP. Conclusions In stroke patients, serum 15-PGDH is a valuable biomarker for predicting SAP. There is an L-shaped relationship between the level of 15-PGDH and the risk of SAP.
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Affiliation(s)
- Yunfei Xu
- Department of Pathophysiology, Xiangya School of Medicine, Central South University, Changsha, China.,Department of Neurosurgery, Xiangya Hospital, Central South University, Changsha, China.,Sepsis Translational Medicine Key Lab of Hunan Province, Central South University, Changsha, China.,China-Africa Research Center of Infectious Diseases, Central South University, Changsha, China
| | - Haoduo Qiao
- Department of Pathophysiology, Xiangya School of Medicine, Central South University, Changsha, China.,Department of Neurosurgery, Xiangya Hospital, Central South University, Changsha, China.,Sepsis Translational Medicine Key Lab of Hunan Province, Central South University, Changsha, China.,China-Africa Research Center of Infectious Diseases, Central South University, Changsha, China
| | - Shun Yang
- Department of Pathophysiology, Xiangya School of Medicine, Central South University, Changsha, China
| | - Lin Zhou
- Department of Pathophysiology, Xiangya School of Medicine, Central South University, Changsha, China.,Department of Neurosurgery, Xiangya Hospital, Central South University, Changsha, China.,Sepsis Translational Medicine Key Lab of Hunan Province, Central South University, Changsha, China.,China-Africa Research Center of Infectious Diseases, Central South University, Changsha, China
| | - Yao Zhao
- Department of Pathophysiology, Xiangya School of Medicine, Central South University, Changsha, China.,Department of Neurosurgery, Xiangya Hospital, Central South University, Changsha, China.,Sepsis Translational Medicine Key Lab of Hunan Province, Central South University, Changsha, China.,China-Africa Research Center of Infectious Diseases, Central South University, Changsha, China
| | - Qing Xu
- Department of Pathophysiology, Xiangya School of Medicine, Central South University, Changsha, China.,Department of Neurosurgery, Xiangya Hospital, Central South University, Changsha, China.,Sepsis Translational Medicine Key Lab of Hunan Province, Central South University, Changsha, China.,China-Africa Research Center of Infectious Diseases, Central South University, Changsha, China
| | - Shuying Miao
- China-Africa Research Center of Infectious Diseases, Central South University, Changsha, China.,Department of Pathology, Nanjing Drum Tower Hospital, Nanjing University Medical School, Nanjing, China
| | - Dun Yuan
- Department of Pathophysiology, Xiangya School of Medicine, Central South University, Changsha, China
| | - Jie Zhao
- Department of Pathophysiology, Xiangya School of Medicine, Central South University, Changsha, China
| | - Ying Liu
- Department of Pathophysiology, Xiangya School of Medicine, Central South University, Changsha, China.,Department of Neurosurgery, Xiangya Hospital, Central South University, Changsha, China.,Sepsis Translational Medicine Key Lab of Hunan Province, Central South University, Changsha, China.,China-Africa Research Center of Infectious Diseases, Central South University, Changsha, China
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7
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Zhao J, Li LQ, Zhen NX, Du LL, Shan H, Yu Y, Zhang ZC, Cui W, Tian BP. Microbiology and Outcomes of Institutionalized Patients With Stroke-Associated Pneumonia: An Observational Cohort Study. Front Microbiol 2021; 12:720051. [PMID: 34925251 PMCID: PMC8678279 DOI: 10.3389/fmicb.2021.720051] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/28/2021] [Accepted: 11/03/2021] [Indexed: 11/26/2022] Open
Abstract
Background: The attributable mortality and microbial etiology of stroke-associated pneumonia (SAP) vary among different studies and were inconsistent. Purpose: To determine the microbiology and outcomes of SAP in the lower respiratory tract (LRT) for patients with invasive mechanical ventilation (MV). Methods: In this observational study, included patients were divided into SAP and non-SAP based on a comprehensive analysis of symptom, imaging, and laboratory results. Baseline characteristics, clinical characteristics, microbiology, and outcomes were recorded and evaluated. Results: Of 200 patients, 42.5% developed SAP after the onset of stroke, and they had a lower proportion of non-smokers (p = 0.002), lower GCS score (p < 0.001), higher serum CRP (p < 0.001) at ICU admission, and a higher proportion of males (p < 0.001) and hypertension (p = 0.039) than patients with non-SAP. Gram-negative aerobic bacilli were the predominant organisms isolated (78.8%), followed by Gram-positive aerobic cocci (29.4%). The main pathogens included K. pneumoniae, S. aureus, H. influenzae, A. baumannii, P. aeruginosa, E. aerogenes, Serratia marcescens, and Burkholderia cepacia. SAP prolonged length of MV (p < 0.001), duration of ICU stay (p < 0.001) and hospital stay (p = 0.027), shortened MV-free days by 28 (p < 0.001), and caused elevated vasopressor application (p = 0.001) and 60-day mortality (p = 0.001). Logistic regression analysis suggested that patients with coma (p < 0.001) have a higher risk of developing SAP. Conclusion: The microbiology of SAP is similar to early phase of HAP and VAP. SAP prolongs the duration of MV and length of ICU and hospital stays, but also markedly increases 60-day mortality.
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Affiliation(s)
| | | | | | | | | | | | | | | | - Bao-ping Tian
- Department of Critical Care Medicine, The Second Affiliated Hospital, Zhejiang University School of Medicine, Hangzhou, China
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8
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Shi G, Chen W, Gong P, Wang M, Zhou J, Wang X, Guo M, Lu J, Li Y, Feng H, Fu X, Zhou R, Xue S. The Relationship Between Serum YKL-40 Levels on Admission and Stroke-Associated Pneumonia in Patients with Acute Ischemic Stroke. J Inflamm Res 2021; 14:4361-4369. [PMID: 34511972 PMCID: PMC8422031 DOI: 10.2147/jir.s329612] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/26/2021] [Accepted: 08/26/2021] [Indexed: 11/23/2022] Open
Abstract
Background Stroke-associated pneumonia (SAP) is a standout complication after acute ischemic stroke (AIS), with a prevalence of 7–38%. The aim of this prospective study was to investigate the relationship between serum YKL-40 levels at admission and SAP. Methods Between August 2020 and February 2021, consecutive AIS patients from two centers were enrolled prospectively. Serum YKL-40 concentrations were measured via enzyme-linked immunosorbent assay. We performed logistic regression analyses to explore the relationship between YKL-40 and SAP. Receiver operating characteristic curve was also used to assess the predictive ability of YKL-40 in predicting SAP. Results Ultimately, a total of 511 AIS patients were recruited. Multivariate logistic regression analysis showed that YKL-40 was independently related to SAP, whether as a continuous variable or as quartiles (P=0.001). The area under curve of YKL-40 to predict SAP was 0.765. The optimal cutoff value of YKL-40 as a predictor of SAP was determined to be 206.4 ng/mL, where the sensitivity was 63.1% and the specificity was 82.0%. Conclusion Our study demonstrated that YKL-40 might be considered as a useful biomarker to predict SAP in AIS patients.
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Affiliation(s)
- Guomei Shi
- Department of Neurology, The Taixing People's Hospital, Taixing, Jiangsu, People's Republic of China.,Department of Neurology, The First Affiliated Hospital of Soochow University, Suzhou, Jiangsu, People's Republic of China
| | - Wenxiu Chen
- Department of Critical Care Medicine, Nanjing First Hospital, Nanjing Medical University, Nanjing, Jiangsu, People's Republic of China
| | - Pengyu Gong
- Department of Neurology, Nanjing First Hospital, Nanjing Medical University, Nanjing, Jiangsu, People's Republic of China
| | - Meng Wang
- Department of Neurology, Nanjing First Hospital, Nanjing Medical University, Nanjing, Jiangsu, People's Republic of China
| | - Junshan Zhou
- Department of Neurology, Nanjing First Hospital, Nanjing Medical University, Nanjing, Jiangsu, People's Republic of China
| | - Xiaorong Wang
- Department of Neurology, The Taixing People's Hospital, Taixing, Jiangsu, People's Republic of China
| | - Minwang Guo
- Department of Neurology, The Taixing People's Hospital, Taixing, Jiangsu, People's Republic of China
| | - Jingye Lu
- Department of Neurology, The Taixing People's Hospital, Taixing, Jiangsu, People's Republic of China
| | - Yan Li
- Department of Neurology, The Taixing People's Hospital, Taixing, Jiangsu, People's Republic of China
| | - Hongxuan Feng
- Department of Neurology, The First Affiliated Hospital of Soochow University, Suzhou, Jiangsu, People's Republic of China.,Department of Neurology, The Affiliated Suzhou Hospital of Nanjing Medical University (Suzhou Municipal Hospital), Suzhou, Jiangsu, People's Republic of China
| | - Xuetao Fu
- Department of Neurology, The First Affiliated Hospital of Soochow University, Suzhou, Jiangsu, People's Republic of China.,Department of Neurology, Affiliated Hospital of Yangzhou University, Yangzhou, Jiangsu, People's Republic of China
| | - Rujuan Zhou
- Department of Neurology, The Taixing People's Hospital, Taixing, Jiangsu, People's Republic of China
| | - Shouru Xue
- Department of Neurology, The First Affiliated Hospital of Soochow University, Suzhou, Jiangsu, People's Republic of China
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Mortality rate and biomarker expression within COVID-19 patients who develop acute ischemic stroke: a systematic review and meta-analysis. Future Sci OA 2021; 7:FSO713. [PMID: 34254031 PMCID: PMC8114837 DOI: 10.2144/fsoa-2021-0036] [Citation(s) in RCA: 11] [Impact Index Per Article: 3.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/15/2021] [Accepted: 04/14/2021] [Indexed: 12/11/2022] Open
Abstract
Objective: To describe the mortality difference between acute ischemic stroke (AIS) and non-AIS groups within COVID-19 patients. Materials & methods: We included observational studies through September 2020 that categorized COVID-19 patients into two groups (with and without AIS). Results: Eight studies with a total sample size of 19,399 COVID-19 patients were included. The pooled risk difference showed that patients with COVID-19 who developed AIS had significantly higher mortality than those without AIS by a risk difference of 24% (95% CI: 0.10–0.39; p = 0.001). In two studies, the COVID-19+AIS group had significantly higher lymphocytes, procalcitonin and creatinine levels. Conclusion: Developing AIS significantly adds to the mortality of COVID-19. Timely interventions to manage those patients are strongly recommended. We systematically searched for COVID-19 studies that categorized patients into two groups: with and without acute ischemic stroke (AIS). Of 5100 unique records, eight studies with a total of 19,399 COVID-19 patients were included. The overall mortality rate of COVID-19 patients who developed AIS was 29.6% compared with 2.6% in those without AIS. We therefore conclude that development of AIS increases the mortality rate of COVID-19, and recommend timely intervention for such patients.
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