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[A clinical analysis of 31 cases with pulmonary damage caused by scrub typhus]
Y Qu1
1Department of Respiratory Diseases, Xiamen First Hospital, Xiamen 361003, China.
Objective:
To deepen the understanding of pulmonary damage caused by scrub typhus.
Methods:
31 cases of pulmonary damage caused by scrub typhus from 1993 to 1998 were reviewed with chest radiographs, chest B-ultrasound, etc.
Results:
44% cases with scrub typhus showed a pulmonary damage (31/70), in which 66% (20/31) had cough, 53% (16-31) had sputum, 53% (16/31) had rales and the most symptoms were mild. Chest X-rays: 45% (14/31) showed pulmonary interstitial lesion, 53%(16/31) pulmonary effusion lesion and 8 cases pleural lesion. 26% (8/31) of pleural effusion was confirmed by chest B-ultrasound. Respiratory failure was found in 5 cases. All cases were treated with chloramphenicol and(or) doxycyclinum and made a good recovery.
Conclusion:
The pulmonary damage caused by scrub typhus should be paid more attention to for avoiding misdiagnosis.
Insights
Scrub typhus frequently causes pulmonary damage, including interstitial lesions and pleural effusion, though symptoms are often mild. Early recognition is crucial to prevent misdiagnosis and ensure effective treatment with antibiotics like doxycycline.
Area of Science:
- Infectious Diseases
- Pulmonology
- Radiology
Background:
- Scrub typhus, a zoonotic disease caused by Orientia tsutsugamushi, can lead to significant organ involvement.
- Pulmonary complications are a recognized but often underestimated manifestation of scrub typhus.
Purpose of the Study:
- To enhance understanding of the spectrum and characteristics of pulmonary damage associated with scrub typhus.
- To highlight the importance of recognizing pulmonary manifestations for accurate diagnosis and management.
Main Methods:
- Retrospective review of 31 scrub typhus cases with pulmonary involvement between 1993 and 1998.
- Analysis of clinical symptoms, chest radiographs, and chest B-ultrasound findings.
Main Results:
- Pulmonary damage was observed in 44% of scrub typhus patients, with cough, sputum, and rales being common symptoms.
- Radiographic findings included interstitial lesions (45%), pleural effusion (53%), and pleural lesions (8 cases).
- Respiratory failure occurred in 5 cases, and all patients recovered with antibiotic treatment (chloramphenicol and/or doxycycline).
Conclusions:
- Pulmonary involvement in scrub typhus is a significant clinical entity that warrants greater attention.
- Timely diagnosis and appropriate antibiotic therapy are essential for favorable outcomes in patients with scrub typhus-related lung injury.