Abstract
Objectives
To investigate the clinical characteristics and outcomes on the success of bronchial arterial embolization (BAE) in patients with and without systemic artery-to-pulmonary vessel fistula (SA-PF) and to evaluate the feasibility of CTA in the assessment of SA-PF.
Methods
We retrospectively enrolled 420 consecutive patients that underwent BAE for hemoptysis control in our hospital from September 2011 to May 2019. The clinical characteristics, preprocedural CTA findings, BAE procedural findings, and follow-up outcomes were collected. Patients were divided into two groups according to DSA findings: patients with SA-PF and those without.
Results
A total of 184 (43.7%) patients presented with SA-PF. Pneumonia was less likely to be the concomitant condition in patients with SA-PF (p < 0.001). The mean number of culprit arteries per patient was significantly higher in patients with SA-PF compared to that in patients without SA-PF (p = 0.017). The SA-PF patients saw a greater probability of recurrence (HR: 2.782, 95% CI: 1.617–4.784, p < 0.001). SA-pulmonary venous fistula (SA-PVF) favored lower hemoptysis recurrence rate (HR: 0.199, 95%CI: 0.052–0.765, p = 0.019). SA-pulmonary artery fistula (SA-PAF) can be detected by optimized CTA protocol with a detection rate of 65.3% (49/75).
Conclusions
The presence of SA-PF is an independent risk factor predicting early recurrence of hemoptysis after BAE. SA-PVF seems to be a protective factor for longer hemoptysis control compared to SA-PAF. Optimized preprocedural CTA is a reliable examination to identify SA-PAF.
Key Points
• The appearance of SA-PF is associated with a greater probability of early recurrent hemoptysis after bronchial artery embolization.
• The presence of SA-PVF seems to be a protective factor for longer hemoptysis control after BAE compared to SA-PAF.
• Optimized CTA protocol seems to be a promising auxiliary examination to detect SA-PAF.
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Abbreviations
- BA:
-
Bronchial artery
- BAE:
-
Bronchial artery embolization
- CTA:
-
Computerized tomography angiography
- DSA:
-
Digital subtraction angiography
- NBSA:
-
Non-bronchial systemic arteries
- PA:
-
Pulmonary artery
- PV:
-
Pulmonary vein
- PVA:
-
Polyvinyl alcohol particles
- SA-PAF:
-
Systemic artery-to-pulmonary artery fistula
- SA-PF:
-
Systemic artery-to-pulmonary vessel fistula
- SA-PVF:
-
Systemic artery-to-pulmonary venous fistula
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Funding
This study has received funding from the 1·3·5 Project for Disciplines of Excellence, Clinical Research Incubation Project (18HXFH036), West China Hospital, Sichuan University.
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The scientific guarantor of this publication is Ye Wang.
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Zhang, CJ., Jiang, FM., Zuo, ZJ. et al. Clinical characteristics and postoperative outcomes of systemic artery-to-pulmonary vessel fistula in hemoptysis patients. Eur Radiol 32, 4304–4313 (2022). https://doi.org/10.1007/s00330-021-08484-7
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DOI: https://doi.org/10.1007/s00330-021-08484-7