《Chinese Journal of Rehabilitation Theory and Practice》 ›› 2023, Vol. 29 ›› Issue (6): 708-713.doi: 10.3969/j.issn.1006-9771.2023.06.012

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Risk factors of stroke-associated pneumonia for patients with mild to moderate acute ischemic stroke

DENG Ting1a, CHEN Jingmian1a, LIU Xiaomeng1a, YAO Xiaohua1a, LIU Lushan1a, HE Wei1a, ZHANG Tong1b(), LU Haitao1b()   

  1. 1. a. Department of Emergency; b. Department of Neurology, Beijing Bo'ai Hospital, China Rehabilitation Research Center, Beijing 100068, China
  • Received:2022-08-26 Revised:2023-05-29 Published:2023-06-25 Online:2023-07-14
  • Contact: ZHANG Tong, E-mail: tommzhang@163.com; LU Haitao, E-mail: 13051760807@163.com

Abstract:

Objective To explore the risk factors of stroke-associated pneumonia (SAP) for patients with mild to moderate acute ischemic stroke (AIS).
Methods From October, 2016 to December, 2019, 321 patients with mild to moderate AIS in Beijing Bo'ai Hospital were collected and divided into SAP group (n = 71) and non-SAP group (n = 250) according to whether they were complicated with SAP. Gender, age, time from symptom onset to admission, systolic pressure, diastolic pressure, scores of National Institutes of Health Stroke Scale (NIHSS) at admission, and medical history were recorded. Laboratory indexes including the count of white blood cell and platelet, levels of D-dimer, hypersensitive C-reactive protein (hs-CRP) and α-hydroxybutyrate dehydrogenase (α-HBDH) were measured.
Results Univariate analysis showed that age, NIHSS score, history of hypertension, atrial fibrillation, prior cerebral infarction, the count of white blood cell and platelet, the levels of D-dimer, hs-CRP and α-HBDH were the influencing factors of SAP (P < 0.2). Multivariate Logistic regression showed that age > 70 years old (OR = 7.121, 95%CI 3.493 to 14.514, P < 0.001), NIHSS score > 4 (5 to 10, OR = 4.861, 95% CI 2.412 to 9.797, P < 0.001), the count of platelet > 300×109/L (OR = 6.978, 95% CI 1.864 to 26.128, P = 0.004), and the level of D-dimer > 1.0 mg/L (OR = 3.036, 95% CI, 1.518 to 6.071, P = 0.002) were the risk factors of SAP. The model fitted the original data well (HL = 1.509,P = 0.680) and appeared a good prediction (AUC = 0.847, 95% CI 0.796 to 0.898, P < 0.001).
Conclusion Age > 70 years old, NIHSS score > 4 (5 to 10), the count of platelet > 300×109/L and the level of D-dimer > 1.0 mg/L were the risk factors of SAP for patients with mild to moderate AIS.

Key words: acute ischemic stroke, stroke-associated pneumonia, risk factors

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