Vessel Embolization: Transcatheter Embolization of Pulmonary Arteriovenous Malformations and Aortopulmonary Collateral Arteries

2014 ◽  
pp. 527-548 ◽  
Author(s):  
Liang Tang ◽  
Zhen-fei Fang ◽  
Sheng-hua Zhou
Keyword(s):  
Arteriovenous Malformations ◽  
Transcatheter Embolization ◽  
Pulmonary Arteriovenous Malformations ◽  
Collateral Arteries ◽  
Aortopulmonary Collateral

scholarly journals Evaluation of percutaneous transcatheter embolization for pulmonary arteriovenous malformations

2021 ◽  
Vol 21 (1) ◽  
Author(s):  
ZhengZhong Wu ◽  
JunQing Lin ◽  
WeiZhu Yang ◽  
Na Jiang ◽  
Ning Huang ◽  
...  
Keyword(s):  
New York ◽  
Success Rate ◽  
Arteriovenous Malformations ◽  
Heart Association ◽  
Transcatheter Embolization ◽  
Pulmonary Arteriovenous Malformations ◽  
Technical Success ◽  
Arterial Blood Gas ◽  
Technical Success Rate ◽  
Arterial Blood

Abstract Background The purpose of this study was to assess the safety and efficacy of percutaneous transcatheter embolization (TCE) for the treatment of pulmonary arteriovenous malformations (PAVMs). Methods Forty-three consecutive patients (n = 17 males; n = 26 females) with 72 untreated PAVMs underwent coil and/or plug embolization between January 2010 and February 2018. The mean patient age was 42 ± 14 years (range 19–71 years). The median size of the feeding artery was 7.9 ± 2.9 mm (range 3.5–14.0 mm). The arterial blood gas level and cardiac function of all patients were analysed. The technical success rate, recanalization rate, and complications were evaluated. Computed tomography angiography (CTA) examinations were scheduled for 12 months after treatment and every 2–4 years thereafter. Results Twenty-five PAVMs were treated with coils alone, twenty-one were treated with plugs alone, and twenty-six were treated with both coils and plugs. The technical success rate was 100%. There were no complications during operation. However, one patient (2.3%) had pulmonary thrombosis and embolism post-operation. The patients’ pre-operative and post-operative PaO2 and SaO2 levels were significantly different (p < 0.01). A comparison of the New York Heart Association (NYHA) grade before and after embolization in all patients showed a significant decrease in the post-operative grade (p < 0.01). The 72 PAVMs were divided into three groups (coils only group [n = 25], plugs only group [n = 21], and coils/plugs combined group [n = 26]). After 12 months of follow-up, there were seven reperfusion PAVMs in the coil group, seven reperfusion PAVMs in the plug group, and 1 reperfusion PAVM in the combined group. There were significant differences between the two groups and the combined group. Conclusion Percutaneous TCE is safe and effective for the treatment of PAVMs. A combination of coils and vascular plugs may be useful for preventing recanalization after the embolization of PAVMs.

Transcatheter embolization of pulmonary arteriovenous malformations in Rendu-Osler-Weber disease

Respirology ◽  
1998 ◽  
Vol 3 (4) ◽  
pp. 277-280 ◽  
Author(s):  
Takanobu SHIOYA ◽  
Masa-Aki SANO ◽  
Manabu KAGAYA ◽  
Nobuaki ITO ◽  
Akiko WATANABE ◽  
...  
Keyword(s):  
Arteriovenous Malformations ◽  
Transcatheter Embolization ◽  
Pulmonary Arteriovenous Malformations

Coil embolization of aortopulmonary collateral arteries as an emergency in infants and children

1993 ◽  
Vol 3 (2) ◽  
pp. 141-143 ◽  
Author(s):  
Ugo Vairo ◽  
Luigi Ballerini ◽  
Duccio di Carlo ◽  
Luciano Pasquini ◽  
Roberto Di Donato ◽  
...  
Keyword(s):  
Tetralogy Of Fallot ◽  
Pulmonary Stenosis ◽  
Pulmonary Atresia ◽  
Right Ventricular Outflow Tract ◽  
Transcatheter Embolization ◽  
Ventricular Outflow Tract ◽  
Pulmonary Congestion ◽  
Major Aortopulmonary Collateral Arteries ◽  
Collateral Arteries ◽  
Aortopulmonary Collateral

SummaryEmbolization of major aortopulmonary collateral arteries by coils introduced via catheterization is a well-established procedure for the control of excessively high pulmonary blood flow in patients with tetralogy of Fallot and pulmonary stenosis or atresia. Under special circumstances, this procedure can be life-saving. Between October 1987 and February 1992, four patients with tetralogy of Fallot and pulmonary atresia and one patient with pulmonary stenosis rather than atresia underwent transcatheter embolization of major aortopulmonary collateral arteries as an emergency. Their ages ranged from 41 days to 13 years, with a mean of 45 months. Two patients had recently undergone surgical repair of tetralogy of Fallot while one had been palliated by enlarging the right ventricular outflow tract without closing the ventricular septal defect. All three had been dependent on mechanical ventilation in the postoperative period with signs of pulmonary congestion or intraparenchymal hemorrhage. Eight embolizations were attempted with 0.025 or 0.038 inch coils; seven collateral arteries were completely occluded and one was partially occluded. Thirteen coils were used in total. The systemic saturation rose in one postsurgical patient, with radiological evidence of decreased pulmonary congestion and regression of hemorrhage. In the other cases, the systemic saturation was unchanged. Peak pulmonary arterial pressures dropped in two patients but remained unchanged in three. Our experience suggests that embolization of major aortopulmonary collateral arteries can be beneficial in critical patients, thus avoiding the risks of surgical reexploration.

scholarly journals Pulmonary Arteriovenous Malformations: Current Technique of Transcatheter Embolization and Subsequent Management

2017 ◽  
Vol 2 (3) ◽  
pp. 116-121 ◽  
Author(s):  
Masashi Shimohira ◽  
Tatsuya Kawai ◽  
Takuya Hashizume ◽  
Kengo Ohta ◽  
Kazushi Suzuki ◽  
...  
Keyword(s):  
Arteriovenous Malformations ◽  
Transcatheter Embolization ◽  
Pulmonary Arteriovenous Malformations ◽  
Current Technique

scholarly journals Pulmonary arteriovenous malformations: diagnostic and treatment characteristics

2019 ◽  
Vol 45 (4) ◽  
Author(s):  
William Salibe-Filho ◽  
Bruna Mamprim Piloto ◽  
Ellen Pierre de Oliveira ◽  
Marcela Araújo Castro ◽  
Breno Boueri Affonso ◽  
...  
Keyword(s):  
Arteriovenous Malformations ◽  
Case Series ◽  
Transcatheter Embolization ◽  
Pulmonary Angiography ◽  
Clinical Findings ◽  
Pulmonary Arteriovenous Malformations ◽  
Vascular Abnormalities ◽  
Computed Tomographic ◽  
Clinical Complications ◽  
The Mean

ABSTRACT Objective: To present a case series of pulmonary arteriovenous malformations (PAVMs), describing the main clinical findings, the number/location of pulmonary vascular abnormalities, the clinical complications, and the treatment administered. Methods: This was a retrospective observational study evaluating patients with PAVM divided into two groups: hereditary hemorrhagic telangiectasia (HHT); and idiopathic PAVM (iPAVM). Results: A total of 41 patients were selected for inclusion, but only 33 had PAVMs. After clinical evaluation, 27 and 6 were diagnosed with HHT and iPAVM, respectively. In the HHT group, the mean age was 49.6 years and 88.9% were female. In that group, 4 patients had an SpO2 of < 90% and the most common clinical finding was epistaxis. In the iPAVM group, the mean age was 48.1 years and 83.3% were female. In that group, 3 patients had an SpO2 of < 90%. Computed tomographic pulmonary angiography showed that most of the PAVMs were in the lower lobes: 56.4% in the HHT group and 85.7% in the iPAVM group. Embolization was performed in 23 patients (in both groups). At this writing, 10 patients are scheduled to undergo the procedure. One of the patients who underwent embolization was subsequently referred for pulmonary resection. Conclusions: In both of the PAVM groups, there was a predominance of women and of fistulas located in the lower lobes. Few of the patients had respiratory symptoms, and most had an SpO2 > 90%. The treatment chosen for all patients was percutaneous transcatheter embolization.

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