RESUMO
Pelvic venous disorder (PeVD) is a term that encompasses all the interrelated causes of chronic pelvic pain (CPP) and perineal/lower extremity varicose veins of pelvic venous origin historically known as nutcracker syndrome, pelvic congestion syndrome, and May-Thurner syndrome, resulting in a more precise diagnosis that accounts for the underlying pathophysiology and anatomy. PeVD manifests as CPP with associated vulvar and lower-extremity varicosities, left flank pain and hematuria, and lower extremity pain and swelling secondary to obstruction or reflux in the left renal, ovarian, or iliac veins. This article will focus specifically on the most current nomenclature, evaluation, and management of CPP of venous origin.
RESUMO
Interventional Radiology residency training programs experienced significant impacts secondary to the COVID-19 pandemic. Prospective resident recruitment and resident education were particularly affected due to limitations on in-person gatherings in effort to curb exposure. Finding ways to mitigate the pandemic's effect on recruitment and education was a challenge faced by residency programs across the nation. This article discusses a single Interventional Radiology program's approach to adapting to the reality of limited interpersonal interaction as well as efforts to maintain engagement for resident recruitment and education in a virtual setting.
Assuntos
COVID-19 , Internato e Residência , Humanos , Pandemias , Estudos Prospectivos , Radiologia Intervencionista/educação , SARS-CoV-2RESUMO
Image-guided biopsies are one of the most common requests received by radiologists, and while most are straightforward, some lesions are not amenable to percutaneous sampling due to location or depth. Advances in intravascular ultrasound combined with the principles of non-targeted transvenous solid organ biopsy allow for direct visualization and successful targeted transvenous biopsies of solid organ and perivascular lesions. Here, we present our technique and three example cases of transvenous biopsies.
Assuntos
Biópsia Guiada por Imagem , Humanos , UltrassonografiaRESUMO
The goal of thoracic endograft placement in type B aortic dissection is to prevent aneurysmal degeneration and other complications. Although TEVAR is a highly effective tool for managing type B aortic dissection, many patients will require additional interventions. In this article, we present a case-based review of techniques for the management of persistent false lumen perfusion and stent-graft induced new entry tears after TEVAR for aortic dissection.
Assuntos
Aneurisma da Aorta Torácica , Dissecção Aórtica , Implante de Prótese Vascular , Procedimentos Endovasculares , Dissecção Aórtica/diagnóstico por imagem , Dissecção Aórtica/cirurgia , Aneurisma da Aorta Torácica/diagnóstico por imagem , Aneurisma da Aorta Torácica/cirurgia , Prótese Vascular , Implante de Prótese Vascular/efeitos adversos , Procedimentos Endovasculares/efeitos adversos , Humanos , Estudos Retrospectivos , Stents , Fatores de Tempo , Resultado do TratamentoAssuntos
Procedimentos Endovasculares , Leiomiossarcoma/complicações , Neoplasias Retroperitoneais/complicações , Doenças Vasculares/terapia , Veia Cava Inferior , Adulto , Veia Ázigos/fisiopatologia , Circulação Colateral , Procedimentos Endovasculares/instrumentação , Feminino , Humanos , Leiomiossarcoma/diagnóstico por imagem , Leiomiossarcoma/patologia , Estadiamento de Neoplasias , Fluxo Sanguíneo Regional , Neoplasias Retroperitoneais/diagnóstico por imagem , Neoplasias Retroperitoneais/patologia , Stents , Resultado do Tratamento , Doenças Vasculares/diagnóstico por imagem , Doenças Vasculares/etiologia , Doenças Vasculares/fisiopatologia , Grau de Desobstrução Vascular , Veia Cava Inferior/diagnóstico por imagem , Veia Cava Inferior/fisiopatologiaAssuntos
Veias Braquiocefálicas , Carcinoma Pulmonar de Células não Pequenas/complicações , Procedimentos Endovasculares/instrumentação , Neoplasias Pulmonares/complicações , Stents , Síndrome da Veia Cava Superior/terapia , Veia Cava Superior , Idoso de 80 Anos ou mais , Veias Braquiocefálicas/diagnóstico por imagem , Veias Braquiocefálicas/fisiopatologia , Carcinoma Pulmonar de Células não Pequenas/diagnóstico por imagem , Carcinoma Pulmonar de Células não Pequenas/secundário , Humanos , Neoplasias Pulmonares/diagnóstico por imagem , Neoplasias Pulmonares/patologia , Masculino , Síndrome da Veia Cava Superior/diagnóstico por imagem , Síndrome da Veia Cava Superior/etiologia , Síndrome da Veia Cava Superior/fisiopatologia , Resultado do Tratamento , Veia Cava Superior/diagnóstico por imagem , Veia Cava Superior/fisiopatologiaRESUMO
Viewed through the lenses of Catholic social teaching and solidarity, the 2014 Ebola epidemic was a failure of both, because health equity is at the center of the Catholic understanding of health care as a basic human right of all persons, regardless of ability to pay or citizenship status.
Assuntos
Catolicismo , Equidade em Saúde , Justiça Social , Doença pelo Vírus Ebola/tratamento farmacológico , HumanosRESUMO
A series of three- and four-coordinate iron(II) complexes with nitrogen, chlorine, oxygen, and sulfur ligands is presented. The electronic variation is explored by measuring the association constant of the neutral ligands and the reduction potential of the iron(II) complexes. Varying the neutral ligand gives large changes in K(eq), which decrease in the order CN(t)Bu > pyridine >2-picoline > DMF > MeCN > THF > PPh(3). These differences can be attributed to a mixture of steric effects and electronic effects (both sigma-donation and pi-backbonding). The binding constants and the reduction potentials are surprisingly insensitive to changes in an anionic spectator ligand. This suggests that three-coordinate iron(II) complexes may have similar binding trends as proposed three-coordinate iron(II) intermediates in the FeMoco of nitrogenase, even though the anionic spectator ligands in the synthetic complexes differ from the sulfides in the FeMoco.
Assuntos
Ferro/química , Compostos Organometálicos/química , Catálise , Eletroquímica , Eletrólitos/química , Ligantes , Metaloporfirinas/química , Especificidade por SubstratoRESUMO
The crystal structure of the title compound, deca-methyl-cobaltocene, [Co(C(10)H(15))(2)], has been determined. High-quality single crystals were grown from a cold saturated hexa-methyl-disiloxane solution. The structure is related to the manganese and iron analogs. The molecule has D(5d) symmetry, with the Co atom in a crystallographic 2/m position. The cobalt-centroid(C(5)) distance is 1.71Å and the centroid(C(5))-Co-centroid(C(5)) angle is 180°, by symmetry.