Postoperative pulmonary arteriovenous fistula resulting in recurrent cryptogenic stroke

2007 ◽  
Vol 117 (1) ◽  
pp. e43-e45
Author(s):  
Suzanne Fateh-Moghadam ◽  
Rainer Dietz ◽  
Wolfgang Bocksch
2017 ◽  
Vol 9 (3) ◽  
pp. 293-298 ◽  
Author(s):  
Sandra Sousa ◽  
Nuno Vasco Costa ◽  
Cátia Carmona ◽  
Élia Coimbra ◽  
Fernando Pita

Introduction: Cryptogenic stroke is present in about 40% of ischemic stroke patients. Extracardiac shunt related to pulmonary arteriovenous fistula (PAVF) could be a rare potential risk factor for embolic stroke. Most PAVFs are multiple, congenital, and associated with hereditary conditions. On the other hand, isolated PAVFs are rare conditions and an uncommon cause of cryptogenic stoke. Case Report: We describe a case of a young woman without history of respiratory diseases or vascular risk factors, who presented with acute onset of transitory aphasia and right hemiplegia. She had a history of a transient ischemic attack, 3 years before, and migraine headaches. Brain MRI showed an acute cortical ischemic lesion and a chronic ischemic lesion. Diagnostic workup with transcranial Doppler ultrasonography revealed a significant right-to-left shunt with curtain pattern, and echocardiogram did not show structural abnormalities. An isolated small PAVF was diagnosed on pulmonary angiogram. Despite the rare association between isolated small PAVF and stroke, we decided to treat it with coil embolization because of recurrence of stroke, cortical lesions suggestive of embolic source, significant right-left shunt, and risk of future complications. Conclusions: This case highlights the importance of search, identification, and interpretation of causes of cryptogenic strokes to better choose therapy to reduce the stroke recurrence risk. Although unusual, PAVF detection is a treatable cause of stroke and the therapeutic decisions should take into account the characteristics of the PAVF and the degree of suspicion regarding the cause-effect relationship between PAVF and stroke.


2020 ◽  
Vol 2020 ◽  
pp. 1-5
Author(s):  
Huiqin Zhang ◽  
Wenyan Huang ◽  
Tingyu Lan ◽  
Meng Zhang ◽  
Jing Yang ◽  
...  

Purpose. To analyze the characteristics of right-to-left shunt (RLS) in patients with cryptogenic stroke and migraine by contrast-enhanced transesophageal echocardiography (c-TEE). Methods. The study population consisted of 330 patients with cryptogenic stroke and 330 patients with migraine who suspected PFO. All of them received c-TEE examination successfully. In terms of c-TEE analyses, RLS could be diagnosed when microbubbles were visualized in the transition from the right atrium to the left atrium. For semiquantitative analysis, a small amount of RLS was grade 1, indicating 1-10 microvesicles per frame could be seen in the left atrium, a moderate amount of RLS was grade 2, indicating 11-30 microvesicles per frame could be seen in the left atrium, and a large amount of RLS was grade 3, indicating more than 30 microvesicles per frame, or the left atrium is filled with microvesicles. Results. A total of 660 patients were analyzed in the study. PFO-RLS was detected in 348 (348/660, 52.7%) cases by TEE, while in 392 (392/660, 59.3%) cases by c-TEE. Simultaneously, P-RLS was detected in 239 (239/660, 36.2%) cases by c-TEE. Among 330 patients with cryptogenic stroke, PFO-RLS was detected in 198 cases; according to the c-TTE method (198/330, 60.0%), concurrently, 83 participants suffered from PFO-RLS and P-RSL (83/330, 25.1%), including 1 case with PFO and pulmonary arteriovenous fistula. Among 330 patients with migraine, PFO-RLS was detected in 194 cases; according to the c-TTE method (194/330, 58.7%), specifically, 90 participants suffered from PFO-RLS and P-RSL (90/330, 27.2%). There was no statistical significance between the two groups. P-RLS singly was detected in 28 cases with cryptogenic stroke, while in 38 cases with migraine, excluding from pulmonary arteriovenous fistula by CTA examination. In addition, semiquantitative results on c-TTE grading of RLS were compared between the two groups: grade 1 RLS in the migraine group (144/322) was significantly higher than that in the cryptogenic stroke group (71/309) ( P < 0.05 ). Grade 3 RLS in the cryptogenic stroke group (113/309) was significantly higher than that in the migraine group (67/322) ( P < 0.05 ). For grade 2 RLS, there was no statistical difference between the two groups ( P = 0.12 ). Conclusions. c-TEE can increase the positive rate of PFO diagnosis compared with TEE color Doppler. There is no significant difference in the incidence of PFO-PLS and P-RLS between the cryptogenic stroke group and the migraine group. The grades 2-3 RLS are mainly detected in the cryptogenic stroke group, while grades 1-2 RLS are mostly detected in the migraine group.


Heart ◽  
2011 ◽  
Vol 97 (24) ◽  
pp. 2093-2093 ◽  
Author(s):  
K. T. Ahn ◽  
J.-H. Choi ◽  
S. W. Park

Respiration ◽  
1997 ◽  
Vol 64 (5) ◽  
pp. 367-370 ◽  
Author(s):  
F. Marchesani ◽  
L. Cecarini ◽  
R. Pela ◽  
G. Catalini ◽  
A. Sabbatini ◽  
...  

1979 ◽  
Vol 77 (5) ◽  
pp. 674-676 ◽  
Author(s):  
Edward C. Loebl ◽  
Melvin R. Platt ◽  
Lawrence J. Mills ◽  
Aaron S. Estrera

1996 ◽  
Vol 61 (6) ◽  
pp. 1821-1823
Author(s):  
Makoto Sugita ◽  
Hirokazu Aikawa ◽  
Shigefumi Fujimura ◽  
Takashi Kondo ◽  
Gunji Okaniwa

1984 ◽  
Vol 8 (1) ◽  
pp. 155-157 ◽  
Author(s):  
W. Richard Webb ◽  
Gordon Gamsu ◽  
Jeffrey A. Golden ◽  
Larry E. Crooks

2009 ◽  
Vol 57 (06) ◽  
pp. 373-375 ◽  
Author(s):  
Q.-Z. Li ◽  
F. Yao ◽  
L.-X. Yang ◽  
Z. Xu

1983 ◽  
Vol 76 (7) ◽  
pp. 884-886
Author(s):  
MAJ TERRY L. KILGORE ◽  
COL MARVIN H. CHASEN

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