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1.
Rev. méd. Chile ; 147(9): 1122-1127, set. 2019. tab, graf
Artigo em Espanhol | LILACS | ID: biblio-1058654

RESUMO

Background: Spontaneous dissections of visceral arteries are rare and usually secondary to other disease. There is paucity of information about their natural course. Aim: To describe the imaging, clinical characteristics and follow-up of spontaneous visceral artery dissections diagnosed at our institution. Material and Methods: We report a series of 14 patients in whom a spontaneous dissection of a visceral artery was diagnosed on abdominal angio-CT between 2010 and 2018. Clinical features and evolution were recorded. Results: Isolated lesions of the celiac axis were the most common finding. Multiple territories were involved in 14% of cases. A dissection flap was observed in four cases, a hematoma-dissection complex in seven and an aneurysmal dilatation associated with the dissection in three. Of the 10 patients who were followed at our institution, 90% had stabilization or partial regression of the imaging findings. In the remaining case, new dissection events were observed. All cases were managed conservatively, and no death was reported. Conclusions: In this series of patients, spontaneous dissection of visceral arteries had a benign, favorable course, requiring only conservative management.


Assuntos
Humanos , Dissecção Aórtica/diagnóstico por imagem , Tomografia Computadorizada por Raios X , Artéria Celíaca/diagnóstico por imagem , Dissecação , Hematoma
2.
Rev. méd. Chile ; 147(9): 1206-1209, set. 2019. graf
Artigo em Espanhol | LILACS | ID: biblio-1058665

RESUMO

Adventitial cystic disease of the popliteal artery is a rare condition of uncertain etiology, which presents as intermittent claudication of the lower extremity in middle-age patients. We report a 44-year-old man presenting with intermittent claudication of his left leg. MR angiography showed cystic parietal lesions that caused compression with partial occlusion of the left popliteal artery. Surgical resection of the affected segment was performed, with venous graft interposition. The histopathological analysis of the surgical specimen was consistent with cystic adventitial disease.


Assuntos
Humanos , Masculino , Adulto , Pessoa de Meia-Idade , Cistos/complicações , Cistos/diagnóstico por imagem , Claudicação Intermitente/etiologia , Artéria Poplítea/diagnóstico por imagem , Angiografia , Perna (Membro)
3.
Rev Med Chil ; 147(9): 1122-1127, 2019 Sep.
Artigo em Espanhol | MEDLINE | ID: mdl-33625445

RESUMO

BACKGROUND: Spontaneous dissections of visceral arteries are rare and usually secondary to other disease. There is paucity of information about their natural course. AIM: To describe the imaging, clinical characteristics and follow-up of spontaneous visceral artery dissections diagnosed at our institution. MATERIAL AND METHODS: We report a series of 14 patients in whom a spontaneous dissection of a visceral artery was diagnosed on abdominal angio-CT between 2010 and 2018. Clinical features and evolution were recorded. RESULTS: Isolated lesions of the celiac axis were the most common finding. Multiple territories were involved in 14% of cases. A dissection flap was observed in four cases, a hematoma-dissection complex in seven and an aneurysmal dilatation associated with the dissection in three. Of the 10 patients who were followed at our institution, 90% had stabilization or partial regression of the imaging findings. In the remaining case, new dissection events were observed. All cases were managed conservatively, and no death was reported. CONCLUSIONS: In this series of patients, spontaneous dissection of visceral arteries had a benign, favorable course, requiring only conservative management.


Assuntos
Dissecção Aórtica , Dissecção Aórtica/diagnóstico por imagem , Artéria Celíaca/diagnóstico por imagem , Dissecação , Hematoma , Humanos , Tomografia Computadorizada por Raios X
4.
Rev Med Chil ; 147(9): 1206-1209, 2019 Sep.
Artigo em Espanhol | MEDLINE | ID: mdl-33625456

RESUMO

Adventitial cystic disease of the popliteal artery is a rare condition of uncertain etiology, which presents as intermittent claudication of the lower extremity in middle-age patients. We report a 44-year-old man presenting with intermittent claudication of his left leg. MR angiography showed cystic parietal lesions that caused compression with partial occlusion of the left popliteal artery. Surgical resection of the affected segment was performed, with venous graft interposition. The histopathological analysis of the surgical specimen was consistent with cystic adventitial disease.


Assuntos
Cistos , Claudicação Intermitente , Adulto , Angiografia , Cistos/complicações , Cistos/diagnóstico por imagem , Humanos , Claudicação Intermitente/etiologia , Perna (Membro) , Masculino , Pessoa de Meia-Idade , Artéria Poplítea/diagnóstico por imagem
5.
In. Zaratti Sacchetti, Francesco; Forno Gisbert, Ricardo. La radiación ultravioleta en Bolivia. La Paz, OPS, 2003. p.15-25, ilus, graf.
Monografia em Espanhol | LILACS | ID: lil-342725

RESUMO

El ozono es un gas presente en la atmósfera en muy pequeñas cantidades,aproximadamente una parte en un millon en volumen.Desde hace casi dos décadas, con la llegada de la primavera austral,los medios de comunicacion alertan sobre la aparicion de un nuevo agujero de ozono sobre la Antartida.(au)


Assuntos
Ozônio , Bolívia
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