ABSTRACT
Abstract: We present a case of an acute coronary ischemic syndrome associated with anomalous origin of the circumflex artery, with a right coronary sinus origin independent of the right coronary artery, which has a prevalence of 0.1 to 8.4%. This type of anomaly is classified according to the international guidelines as low-risk, however, at high risk of presenting atheroma, coronary complications,(1) and acute coronary ischemic syndrome due to its occasionally intraarterial pathway. The treatment depends on the complexity of the coronary anatomy. In this case with the presence of total obstruction the correct therapy was to perform a percutaneous coronary angioplasty with drug-eluting stent (DES) placement, which improves the survival and is therapeutic at the acute phase, as in the case of this patient.
Resumen: Presentamos un caso de síndrome isquémico coronario agudo asociado al origen anómalo de la arteria circunfleja, a partir del seno coronario derecho independiente de la arteria coronaria derecha, que tiene una prevalencia de 0.1 a 8.4%. Este tipo de anomalía se clasifica según las guías internacionales como de bajo riesgo; sin embargo, con alto riesgo de presentar desarrollo de ateroma y complicaciones coronarias, síndrome isquémico coronario agudo debido a su trayecto en ocasiones intraarterial. El tratamiento depende de la complejidad de la anatomía coronaria. En este caso de obstrucción total, la terapéutica correcta fue realizar angioplastia coronaria percutánea con la colocación de stent fármaco activo, lo que mejora la sobrevida y es terapéutico en el momento agudo, como en el caso de este paciente.
ABSTRACT
Organic thermoelectrics are attractive for the fabrication of flexible and cost-effective thermoelectric generators (TEGs) for waste heat recovery, in particular by exploiting large-area printing of polymer conductors. Efficient TEGs require both p- and n-type conductors: so far, the air instability of polymer n-type conductors, which typically lose orders of magnitude in electrical conductivity (σ) even for short exposure time to air, has impeded processing under ambient conditions. Here we tackle this problem in a relevant class of electron transporting, naphthalene-diimide copolymers, by substituting the imide oxygen with sulfur. n-type doping of the thionated copolymer gives rise to a higher σ with respect to the non-thionated one, and most importantly, owing to a reduced energy level of the lowest-unoccupied molecular orbital, σ is substantially stable over 16 h of air exposure. This result highlights the effectiveness of chemical tuning to improve air stability of n-type solution-processable polymer conductors and shows a path toward ambient large-area manufacturing of efficient polymer TEGs.
ABSTRACT
La poliangeítis microscópica (PAM) es una enfermedad sistémica incluida en la clasificación de Chapel Hill 2012 como vasculitis necrosante que afecta capilares, vénulas y arteriolas. Usualmente expresa anticuerpos anti-citoplasma de neutrófilo (ANCA), con patrón perinuclear en la inmunofluorescencia, y correlación con los anticuerpos anti-mieloperoxidasa (MPO). La capilaritis con hemorragia alveolar es la manifestación más usual de afección pulmonar. La enfermedad pulmonar intersticial (EPI) es infrecuente, siendo la neumonía intersticial común el patrón predominante, sin embargo, otros patrones como la neumonía organizada han sido descritos. No existen pautas de tratamiento de los pacientes con EPI y vasculitis asociada a ANCA (VAA); actualmente son tratados con las bases de las vasculitis de vasos pequeños. El pronóstico de esta asociación es incierto, con posibilidad de recaídas y de curso fatal. A continuación se presenta un caso en el que neumopatía intersticial fue la primera manifestación de una PAM, sin hemorragia alveolar, con posterior involucro renal, y con el tratamiento instaurado presenta mejoría clínica significativa (AU)
Microscopic polyangiitis (MPA) is a systemic disease included in the Chapel Hill 2012 Classification as necrotizing vasculitis affecting capillaries, venules and arterioles. It usually expresses antineutrophil cytoplasmic antibodies (ANCA) and has a perinuclear immunofluorescence pattern and correlation with anti-myeloperoxidase (MPO) antibodies. Capillaritis with alveolar hemorrhage is the most common manifestation of lung disease. Interstitial lung disease (ILD) is uncommon, with usual interstitial pneumonia being the predominant pattern. However, other patterns such as organizing pneumonia have been described. No guidelines exist for treating patients with ILD and, currently, ANCA-associated vasculitis (AAV) is managed along the lines of small vessel vasculitis. The prognosis with this association is uncertain, with possibilities of relapse and a fatal outcome. We present a case in which ILD was the first manifestation of MPA, without alveolar hemorrhage, with subsequent renal involvement and, in which, the established treatment produced a significant clinical improvement (AU)
Subject(s)
Humans , Male , Middle Aged , Microscopic Polyangiitis/complications , Lung Diseases, Interstitial/complications , Cryptogenic Organizing Pneumonia/diagnosis , Anti-Neutrophil Cytoplasmic Antibody-Associated Vasculitis/diagnosis , Diagnosis, Differential , BiopsyABSTRACT
Microscopic polyangiitis (MPA) is a systemic disease included in the Chapel Hill 2012 Classification as necrotizing vasculitis affecting capillaries, venules and arterioles. It usually expresses antineutrophil cytoplasmic antibodies (ANCA) and has a perinuclear immunofluorescence pattern and correlation with anti-myeloperoxidase (MPO) antibodies. Capillaritis with alveolar hemorrhage is the most common manifestation of lung disease. Interstitial lung disease (ILD) is uncommon, with usual interstitial pneumonia being the predominant pattern. However, other patterns such as organizing pneumonia have been described. No guidelines exist for treating patients with ILD and, currently, ANCA-associated vasculitis (AAV) is managed along the lines of small vessel vasculitis. The prognosis with this association is uncertain, with possibilities of relapse and a fatal outcome. We present a case in which ILD was the first manifestation of MPA, without alveolar hemorrhage, with subsequent renal involvement and, in which, the established treatment produced a significant clinical improvement.
