Incidence and Risk Factors for Pneumonia in the Chronic Phase of Cervical Spinal Cord Injury with Complete Motor Paralysis

Introduction: Pneumonia is one of the leading causes of acute- and chronic-phase mortality in patients with cervical spinal cord injury (CSCI) with quadriplegia. The risk factors for chronic-phase pneumonia recurrence in CSCI are still unknown. This study aimed to investigate the incidence of pneumo...

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Main Authors: Chikara Ushiku, Kota Suda, Takehiro Michikawa, Satoko Matsumoto Harmon, Miki Komatsu, Osahiko Tsuji, Masahiko Takahata, Mitsuru Saito, Norimasa Iwasaki, Akio Minami
Format: Article
Language:English
Published: The Japanese Society for Spine Surgery and Related Research 2023-07-01
Series:Spine Surgery and Related Research
Subjects:
Online Access:https://www.jstage.jst.go.jp/article/ssrr/7/4/7_2022-0254/_pdf/-char/en
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author Chikara Ushiku
Kota Suda
Takehiro Michikawa
Satoko Matsumoto Harmon
Miki Komatsu
Osahiko Tsuji
Masahiko Takahata
Mitsuru Saito
Norimasa Iwasaki
Akio Minami
author_facet Chikara Ushiku
Kota Suda
Takehiro Michikawa
Satoko Matsumoto Harmon
Miki Komatsu
Osahiko Tsuji
Masahiko Takahata
Mitsuru Saito
Norimasa Iwasaki
Akio Minami
author_sort Chikara Ushiku
collection DOAJ
description Introduction: Pneumonia is one of the leading causes of acute- and chronic-phase mortality in patients with cervical spinal cord injury (CSCI) with quadriplegia. The risk factors for chronic-phase pneumonia recurrence in CSCI are still unknown. This study aimed to investigate the incidence of pneumonia in the chronic phase after injury and to identify its risk factors. Methods: This retrospective clinical observational study included patients with CSCI with American Spinal Injury Association Impairment Scale grades of A or B admitted to our center within 72 h of CSCI injury who started treatment and were available for follow-up for at least 90 days. The patients were assessed for incidences of pneumonia and its associations with clinical characteristics, including risk factors at the time of injury. Patients in whom pneumonia developed within 30 days postadmission and those after 30 days of hospitalization were comparatively examined using univariate and multivariate analyses. Results: Pneumonia occurred in 36% of the 69 enrolled patients throughout the study period and in 20% of all patients after 30 days of hospitalization. Multivariate analysis of risk factors for pneumonia showed that atelectasis (adjusted OR [aOR], 95% confidence interval [CI]: 4.9, 1.2-20.0), enteral feeding (aOR [95% CI]: 13.3 [3.0-58.9]), mechanical ventilation (aOR [95% CI]: 4.0 [1.0-15.0]), and tracheotomy (aOR [95% CI]: 14.6 [2.3-94.6]) within 30 days of admission were significantly associated with the occurrence of pneumonia even after 30 days of hospitalization. Conclusions: The risk factors for developing pneumonia in the chronic phase were atelectasis, enteral feeding, mechanical ventilation, and tracheotomy within 30 days of hospitalization. This study suggests that treatment of atelectasis, long-term respiratory muscle rehabilitation, and training to improve swallowing function are essential to prevent the recurrence of pneumonia after 30 days of hospitalization.
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spelling doaj.art-dc8c6f606f7f4221bee1575962befac32023-10-16T00:32:24ZengThe Japanese Society for Spine Surgery and Related ResearchSpine Surgery and Related Research2432-261X2023-07-017433334010.22603/ssrr.2022-02542022-0254Incidence and Risk Factors for Pneumonia in the Chronic Phase of Cervical Spinal Cord Injury with Complete Motor ParalysisChikara Ushiku0Kota Suda1Takehiro Michikawa2Satoko Matsumoto Harmon3Miki Komatsu4Osahiko Tsuji5Masahiko Takahata6Mitsuru Saito7Norimasa Iwasaki8Akio Minami9Department of Orthopedic Surgery, Hokkaido Spinal Cord Injury CenterDepartment of Orthopedic Surgery, Hokkaido Spinal Cord Injury CenterDepartment of Environmental and Occupational Health, School of Medicine, Toho UniversityDepartment of Orthopedic Surgery, Hokkaido Spinal Cord Injury CenterDepartment of Orthopedic Surgery, Hokkaido Spinal Cord Injury CenterDepartment of Orthopedic Surgery, Hokkaido Spinal Cord Injury CenterDepartment of Orthopedic Surgery, Faculty of Medicine and Graduate School of Medicine, Hokkaido UniversityDepartment of Orthopedic Surgery, The Jikei University School of MedicineDepartment of Orthopedic Surgery, Faculty of Medicine and Graduate School of Medicine, Hokkaido UniversityDepartment of Orthopedic Surgery, Hokkaido Spinal Cord Injury CenterIntroduction: Pneumonia is one of the leading causes of acute- and chronic-phase mortality in patients with cervical spinal cord injury (CSCI) with quadriplegia. The risk factors for chronic-phase pneumonia recurrence in CSCI are still unknown. This study aimed to investigate the incidence of pneumonia in the chronic phase after injury and to identify its risk factors. Methods: This retrospective clinical observational study included patients with CSCI with American Spinal Injury Association Impairment Scale grades of A or B admitted to our center within 72 h of CSCI injury who started treatment and were available for follow-up for at least 90 days. The patients were assessed for incidences of pneumonia and its associations with clinical characteristics, including risk factors at the time of injury. Patients in whom pneumonia developed within 30 days postadmission and those after 30 days of hospitalization were comparatively examined using univariate and multivariate analyses. Results: Pneumonia occurred in 36% of the 69 enrolled patients throughout the study period and in 20% of all patients after 30 days of hospitalization. Multivariate analysis of risk factors for pneumonia showed that atelectasis (adjusted OR [aOR], 95% confidence interval [CI]: 4.9, 1.2-20.0), enteral feeding (aOR [95% CI]: 13.3 [3.0-58.9]), mechanical ventilation (aOR [95% CI]: 4.0 [1.0-15.0]), and tracheotomy (aOR [95% CI]: 14.6 [2.3-94.6]) within 30 days of admission were significantly associated with the occurrence of pneumonia even after 30 days of hospitalization. Conclusions: The risk factors for developing pneumonia in the chronic phase were atelectasis, enteral feeding, mechanical ventilation, and tracheotomy within 30 days of hospitalization. This study suggests that treatment of atelectasis, long-term respiratory muscle rehabilitation, and training to improve swallowing function are essential to prevent the recurrence of pneumonia after 30 days of hospitalization.https://www.jstage.jst.go.jp/article/ssrr/7/4/7_2022-0254/_pdf/-char/encervical spinal cord injurycomplete motor paralysischronic phasepneumonia
spellingShingle Chikara Ushiku
Kota Suda
Takehiro Michikawa
Satoko Matsumoto Harmon
Miki Komatsu
Osahiko Tsuji
Masahiko Takahata
Mitsuru Saito
Norimasa Iwasaki
Akio Minami
Incidence and Risk Factors for Pneumonia in the Chronic Phase of Cervical Spinal Cord Injury with Complete Motor Paralysis
Spine Surgery and Related Research
cervical spinal cord injury
complete motor paralysis
chronic phase
pneumonia
title Incidence and Risk Factors for Pneumonia in the Chronic Phase of Cervical Spinal Cord Injury with Complete Motor Paralysis
title_full Incidence and Risk Factors for Pneumonia in the Chronic Phase of Cervical Spinal Cord Injury with Complete Motor Paralysis
title_fullStr Incidence and Risk Factors for Pneumonia in the Chronic Phase of Cervical Spinal Cord Injury with Complete Motor Paralysis
title_full_unstemmed Incidence and Risk Factors for Pneumonia in the Chronic Phase of Cervical Spinal Cord Injury with Complete Motor Paralysis
title_short Incidence and Risk Factors for Pneumonia in the Chronic Phase of Cervical Spinal Cord Injury with Complete Motor Paralysis
title_sort incidence and risk factors for pneumonia in the chronic phase of cervical spinal cord injury with complete motor paralysis
topic cervical spinal cord injury
complete motor paralysis
chronic phase
pneumonia
url https://www.jstage.jst.go.jp/article/ssrr/7/4/7_2022-0254/_pdf/-char/en
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