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2016 ; 89
(1060
): 20150654
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The usefulness of low-dose CT scan in elderly patients with suspected acute lower
respiratory infection in the emergency room
#MMPMID26861744
Park JE
; Kim Y
; Lee SW
; Shim SS
; Lee JK
; Lee JH
Br J Radiol
2016[]; 89
(1060
): 20150654
PMID26861744
show ga
OBJECTIVE: To evaluate the usefulness of low-dose CT (LDCT) for the diagnosis of
acute lower respiratory infection (ALRI) in elderly patients in the emergency
room (ER). METHODS: A total of 160 consecutive patients (mean age: 75.9?±?9.2
years; range: 60-97 years), who were diagnosed to have ALRI by LDCT in the ER,
were enrolled in this study. Initial chest radiograph (CR) and CT patterns of
ALRI were analysed, and clinical courses of patients were assessed. RESULTS: 49
patients showed negative CR, in whom the main CT patterns were diffuse bronchial
wall thickening (n?=?23), ground-glass opacity (n?=?6), mixed centrilobular
nodules and ground-glass opacity (n?=?3), small consolidation (n?=?8) or
consolidation in the dependent lung (n?=?9), while the other 111 patients with
the main CT pattern of consolidation demonstrated pulmonary abnormality on CR.
Pulmonary oedema (12.5%) and pleural effusion (23.1%) were associated. The rate
of hospitalization, care in the intensive care unit, mortality and comorbidity
were significantly higher in the CR(+)LDCT(+) group (88.3%, 36.1%, 18.2% and
59.5%) than in the CR(-)LDCT(+) group (55.1%, 8.2%, 2.0% and 38.8%; p???0.05).
CONCLUSION: LDCT was useful for the early diagnosis of ALRI in elderly patients
who showed negative initial CR. The patients with negative initial CR had main CT
patterns of diffuse bronchial wall thickening, ground-glass opacity,
centrilobular nodules, small consolidation or consolidation in the dependent lung
on LDCT. ADVANCES IN KNOWLEDGE: The use of LDCT may be considered for the early
diagnosis of ALRI in elderly patients who have high comorbidity.
|Acute Disease
[MESH]
|Aged
[MESH]
|Aged, 80 and over
[MESH]
|Emergency Service, Hospital/statistics & numerical data
[MESH]