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1.
Int. j. morphol ; 42(1): 52-58, feb. 2024. ilus
Article in English | LILACS | ID: biblio-1528829

ABSTRACT

SUMMARY: In bovines, anatomical observations of the coronary vascular tree describe qualitative characteristics. The objective of this study was to morphometrically characterize the coronary veins and their tributaries in cattle. An arcuate application with 2.0 silk was performed around the ostium of the coronary sinus of 28 bovine hearts and a number 14 catheter was placed, through which semi- synthetic polyester resin and mineral blue color was perfused. In 22 hearts (78.6 %) the great cardiac vein was originated at the cardiac apex. The configuration of the arteriovenous trigone was mainly closed inferior and superior types (50 %). The caliber of the great cardiac vein at the level of the atrioventricular sulcus was 6.7 +/- 1.2 mm. The origin of the left marginal vein was observed in the lower third of the left cardiac margin (53.6 %), its distal caliber was 4.1 +/- 0.8 mm and its drainage was at the level of the great cardiac vein. The middle cardiac vein originated from the cardiac apex in 78.6 % of the samples, emptied mainly into the coronary sinus (82.1 %) and its distal caliber was 4.7 +/- 0.9 mm. Anastomoses occurred in 28.6 % of the hearts, being found in most cases between the middle cardiac vein and the great cardiac vein (50 %), which was significant compared to other anastomoses (p<0.001). The length of the coronary sinus was 42.2 +/- 5.1 mm, its distal caliber was 13.8 +/- 2 mm, and its shape was cylindrical. Myocardial bridges were found in 3 hearts (10.7 %) mainly in the lower third of the middle cardiac vein (66.6 %). Most of the main coronary veins drained into the coronary sinus, with some cases with atypical outlets and the presence of a high percentage of anastomosis that serves to improve cardiac venous drainage in case of venous compression or obstruction.


En bovinos, las observaciones anatómicas de árbol vascular coronario describen características cualitativas. El objetivo de este estudio fue caracterizar morfométricamente las venas coronarias y sus tributarias en bovinos. Se realizó una aplicatura arciforme con seda 2.0 alrededor del ostium del seno coronario de 28 corazones de bovino y se colocó un catéter número 14, a través del cual se perfundió resina de poliéster semisintética y color azul mineral. La vena cardiaca magna se originó en 22 corazones (78,6 %) en el ápex cardiaco. La configuración del trígono arteriovenoso fue principalmente cerrado inferior y superior (50 %). El calibre de la vena cardiaca magna a nivel del surco atrioventricular fue 6,7 +/- 1,2 mm. El origen de la vena marginal izquierda se observó en el tercio inferior del margen izquierdo cardiaco (53,6 %), su calibre distal fue 4,1 +/- 0,8 mm y su desembocadura fue a nivel de la vena cardiaca magna. La vena cardiaca media se originó en el ápex cardiaco en el 78,6 % de las muestras, desembocó principalmente en el seno coronario (82.1 %) y su calibre distal fue 4,7 +/- 0,9 mm. Se presentó anastomosis en el 28,6 % de los corazones, encontrándose en la mayoría de los casos entre la vena cardiaca media y la vena cardiaca magna (50 %), lo cual fue significativo en comparación con otras anastomosis (p<0,001). La longitud del seno coronario fue 42,2 +/- 5,1 mm, su calibre distal fue 13,8 +/- 2 mm y su forma fue cilíndrica. Se encontró puentes miocárdicos en 3 corazones (10,7 %) y en el tercio inferior de la vena cardiaca media (66,6 %). La mayoría de las venas coronarias principales desembocan en el seno coronario, con algunos casos con desembocaduras atípicas y la presencia de un alto porcentaje de anastomosis que sirve para mejorar el drenaje venoso cardiaco en caso de compresión u obstrucción venosa.


Subject(s)
Animals , Cattle , Cattle/anatomy & histology , Coronary Vessels/anatomy & histology , Veins , Cross-Sectional Studies , Coronary Sinus/anatomy & histology
2.
Int. j. morphol ; 41(2): 333-342, abr. 2023. ilus, tab
Article in English | LILACS | ID: biblio-1440309

ABSTRACT

SUMMARY: Changes in the microcirculation of multiple tissues and organs have been implicated as a possible mechanism in physiological aging. In particular, vascular endothelial growth factor is a secretory protein responsible for regulating angiogenesis via altering endothelial proliferation, survival, migration, extracellular matrix degradation and cell permeability. The aim of the present study was to evaluate the role of vascular endothelial growth factor in the progression of morphological alterations caused by physiological aging in the heart and kidney and to examine its relation to changes in capillary density. We used two age groups of healthy Wistar rats - 6- and 12-month- old. The expression of vascular endothelial growth factor was examined through immunohistochemistry and immunofluorescence and assessed semi-quantitatively. Changes in capillary density were evaluated statistically and correlated with the expression of vascular endothelial growth factor. We reported stronger immunoreactivity for vascular endothelial growth factor in the left compared to the right ventricle and also observed an increase in its expression in both ventricles in older animals. Contrasting results were reported for the renal cortex and medulla. Capillary density decreased statistically in all examined structures as aging progressed. The studied correlations were statistically significant in the two ventricles in 12-month-old animals and in the renal cortex of both age groups. Our results shed light on some changes in the microcirculation that take place as aging advances and likely contribute to impairment in the function of the examined organs.


Los cambios en la microcirculación de múltiples tejidos y órganos se han implicado como un posible mecanismo en el envejecimiento fisiológico. En particular, el factor de crecimiento endotelial vascular es una proteína secretora responsable de regular la angiogénesis mediante la alteración de la proliferación endotelial, la supervivencia, la migración, la degradación de la matriz extracelular y la permeabilidad celular. El objetivo del presente estudio fue evaluar el papel del factor de crecimiento del endotelio vascular en la progresión de las alteraciones morfológicas causadas por el envejecimiento fisiológico en el corazón y riñón y examinar su relación con los cambios en la densidad capilar. Utilizamos dos grupos de ratas Wistar sanas: 6 y 12 meses de edad. La expresión del factor de crecimiento del endotelio vascular se examinó mediante inmunohistoquímica e inmunofluorescencia y se evaluó semicuantitativamente. Los cambios en la densidad capilar se evaluaron estadísticamente y se correlacionaron con la expresión del factor de crecimiento del endotelio vascular. Informamos una inmunorreactividad más fuerte para el factor de crecimiento endotelial vascular en el ventrículo izquierdo en comparación con el derecho y también observamos un aumento en su expresión en ambos ventrículos en animales mayores. Se informaron resultados contrastantes para la corteza renal y la médula. La densidad capilar disminuyó estadísticamente en todas las estructuras examinadas a medida que avanzaba el envejecimiento. Las correlaciones estudiadas fueron estadísticamente significativas en los dos ventrículos en animales de 12 meses y en la corteza renal de ambos grupos de edad. Nuestros resultados arrojan luz sobre algunos cambios en la microcirculación que tienen lugar a medida que avanza el envejecimiento y probablemente contribuyan a un deterioro en la función de los órganos examinados.


Subject(s)
Animals , Rats , Aging , Coronary Vessels/anatomy & histology , Heart/anatomy & histology , Kidney/blood supply , Capillaries/anatomy & histology , Immunohistochemistry , Fluorescent Antibody Technique , Rats, Wistar , Coronary Vessels/physiology , Vascular Endothelial Growth Factors/metabolism , Heart/physiology , Kidney/anatomy & histology , Kidney/physiology , Microcirculation
3.
Chinese Journal of Contemporary Pediatrics ; (12): 238-243, 2023.
Article in Chinese | WPRIM | ID: wpr-971066

ABSTRACT

Kawasaki disease (KD) is a febrile disease mainly observed in children aged <5 years, with medium- and small-vessel vasculitis as the main lesion. Although KD has been reported for more than 50 years and great progress has been made in the etiology and pathology of KD in recent years, there is still a lack of specific indicators for the early diagnosis of KD, especially with more difficulties in the diagnosis of incomplete Kawasaki disease (IKD). At present, there are no clear diagnostic criteria for IKD, which leads to the failure of the timely identification and standardized treatment of IKD in clinical practice and even induce the development of coronary artery lesion. This article reviews the concept, epidemiological features, diagnosis, treatment, and follow-up management of IKD, in order to deepen the understanding of IKD among clinical workers and help to improve the clinical diagnosis and treatment of KD in China.


Subject(s)
Child , Humans , Infant , Mucocutaneous Lymph Node Syndrome/therapy , Coronary Vessels , China
4.
Journal of Biomedical Engineering ; (6): 171-179, 2023.
Article in Chinese | WPRIM | ID: wpr-970688

ABSTRACT

Coronary artery fractional flow reserve (FFR) is a critical physiological indicator for assessment of impaired blood flow caused by coronary artery stenosis. The wire-based invasive measurement of blood flow pressure gradient across stenosis is the gold standard for clinical measurement of FFR. However, it has the risk of vascular injury and requires the use of vasodilators, increasing the time and overall cost of interventional examination. Coronary imaging is playing an important role in clinical diagnosis of stenotic lesions, evaluation of severity of lesions, and planning of therapies. In recent years, the computation of FFR based on the physiological information of blood flow obtained from routinely collected coronary image data has become a research focus in this field. This technique reduces the cost of physiological assessment of coronary lesions and the use of pressure wires. It is beneficial to strengthen the physiological guidance in interventional therapy. In order to better understand this emerging technique, this paper highlights its implementation principle and diagnostic performance, analyzes practical problems and current challenges in clinical applications, and discusses possible future development.


Subject(s)
Humans , Coronary Vessels/diagnostic imaging , Fractional Flow Reserve, Myocardial , Heart , Constriction, Pathologic , Coronary Stenosis/diagnostic imaging
5.
Chinese Journal of Cardiology ; (12): 136-142, 2023.
Article in Chinese | WPRIM | ID: wpr-969755

ABSTRACT

Objective: To evaluate the protective effect of jailed balloon technique on side branch (SB) ostium using three-dimensional optical coherence tomography(OCT). Methods: This is a retrospective study. Consecutive coronary disease patients with coronary artery bifurcation lesions who underwent percutaneous coronary intervention (PCI) and completed pre-and post-procedural OCT examinations at the Chinese People's Liberation Army General Hospital from September 2019 to March 2022 were enrolled. Patients were divided into the jailed balloon technique group and the unprotected group according to the options applied for the SB. The SB ostium area difference was calculated from OCT images (SB ostium area difference=post-PCI SB ostium area-pre-PCI SB ostium area). The SB ostium area differences were compared between the two groups and compared further in the subgroup of true bifurcation lesions and non-true bifurcation lesions. In the jailed balloon group, the SB ostium area difference was compared between the active jailed balloon technique and the conventional jailed balloon technique, between the jailed balloon>2.0 mm diameter and the jailed balloon≤2.0 mm diameter, and between the higher balloon pressure (>4 atm, 1 atm=101.325 kPa) and the lower balloon pressure (≤4 atm). Multivariate linear regression analysis was used to explore the correlation between the technical parameters of the jailed balloon technique and the SB protection effect. Results: A total of 176 patients with 236 bifurcation lesions were enrolled, aged (60.7±9.3) years, and there were 128 male patients (72.7%). There were 67 patients in the jailed balloon technique group with 71 bifurcation lesions and 123 patients in the unprotected group with 165 bifurcation lesions. Fourteen patients had 2 to 3 lesions, which were treated in different ways, so they appeared in the unprotected group and the jailed balloon technique group at the same time. The area difference in SB ostium was greater in the jailed balloon group than in the unprotected group (0.07 (-0.43, 1.05)mm2 vs.-0.33 (-0.83, 0.26)mm2, P<0.001), and the results were consistent in the true bifurcation lesion subgroup (0.29 (-0.35, 0.96)mm2 vs.-0.26 (-0.64, 0.29)mm2, P=0.004), while the difference between the two groups in the non-true bifurcation lesion subgroup was not statistically significant (P=0.136). In the jailed balloon technique group, the SB ostium area difference was greater in patients treated with the active jailed balloon technique than in those treated with the conventional jailed balloon technique ((0.43±1.36)mm2 vs. (-0.22±0.52)mm2, P=0.013). The difference in SB ostium area was greater in those using>2.0 mm diameter jailed balloons than in those using≤2.0 mm diameter jailed balloons (0.25 (-0.51, 1.31) mm2 vs.-0.01 (-0.45, 0.63) mm2, P=0.020), while SB ostium area difference was similar between those endowed with higher balloon pressure (>4 atm) compared to those with lower balloon pressure (≤4 atm) (P=0.731). Multivariate linear regression analysis showed that there was a positive correlation between jailed balloon diameter and SB ostium area difference (r=0.344, P=0.019). Conclusions: The jailed balloon technique significantly protects SB ostium, especially in patients with true bifurcation lesions. The active jailed balloon technique and larger diameter balloons may provide more protection to the SB.


Subject(s)
Humans , Male , Angioplasty, Balloon, Coronary/methods , Percutaneous Coronary Intervention , Tomography, Optical Coherence/methods , Retrospective Studies , Treatment Outcome , Stents , Coronary Artery Disease/therapy , Coronary Vessels/pathology , Coronary Angiography
6.
Chinese Critical Care Medicine ; (12): 658-661, 2023.
Article in Chinese | WPRIM | ID: wpr-982649

ABSTRACT

OBJECTIVE@#To summarize the application experience and clinical effect of radial artery in total arterial coronary revascularization (TAR) in elderly patients.@*METHODS@#Retrospectively analyzed the clinical data of patients who underwent TAR at the University of Hong Kong Shenzhen Hospital from July 1, 2020 to May 30, 2022. Patients were divided into ≥ 65-year-old group and < 65-year-old group according to age. The radial artery blood flow, diameter, intimal integrity and Allen test were evaluated by ultrasound before operation. The distal ends of radial artery were collected for pathological examination during operation. Coronary artery CT angiography (CTA) was examined postoperatively and follow up. The safety and reliability of ultrasonic assessment of radial artery and application of radial artery in elderly patients with TAR were summarized and analyzed.@*RESULTS@#A total of 101 patients received TAR, including 35 cases aged ≥ 65 years old, 66 cases aged < 65 years old; 78 cases used bilateral radial arteries, and 23 cases used unilateral radial arteries. 4 cases of bilateral internal mammary arteries. All the proximal ends of the radial artery were anastomosed to the proximal end of the ascending aorta, 34 cases were performed of "Y" grafts, and 4 cases were sequential anastomoses. There was no in-hospital death and perioperative cardiovascular events. Perioperative cerebral infarction occurred in 3 patients. 1 patients was reoperated for bleeding. Intra-aortic balloon pump (IABP) assistance was used in 21 patients. Poor wound healing occurred in 2 cases and healed well after debridement. Follow-up of 2 to 20 months after discharge showed no internal mammary artery occlusion and 4 radial artery occlusions; no major adverse cardiovascular and cerebrovascular event (MACCE) occurred, and the survival rate was 100%. There was no significant difference in the above perioperative complications and follow-up endpoints between the two age groups.@*CONCLUSIONS@#By adjusting the order of bypass anastomosis and optimizing the preoperative evaluation method, radial artery combined with internal mammary artery can obtain better outcome early in TAR, and can be safely and reliably applied to elderly patients.


Subject(s)
Aged , Humans , Radial Artery/transplantation , Coronary Vessels , Coronary Artery Bypass/methods , Retrospective Studies , Reproducibility of Results , Treatment Outcome
7.
Lima; Perú. ESSALUD. Instituto de Evaluación de Tecnologías en Salud e Investigación; 1 ed; May. 2022. 125 p. ilus.(GPC, 51).
Monography in Spanish | MINSAPERU, LILACS, LIPECS | ID: biblio-1373372

ABSTRACT

La presente publicación en versión extensa, describe las recomendaciones para el manejo infarto agudo de miocardio con elevación persistente del segmento ST (IMCEST) dentro de las primeras 12 horas de inicio de los síntomas, con el fin de contribuir a reducir la mortalidad, mejorar la calidad de vida, y reducir las complicaciones de los pacientes con esta condición, la población a la cual se aplicará la GPC:, o sea los pacientes con infarto agudo de miocardio con elevación persistente del segmento ST (IMCEST) dentro de las primeras 12 horas de inicio de los síntoma. El infarto agudo de miocardio con elevación persistente del segmento ST (IMCEST) es una emergencia médica, producto de la oclusión de las arterias coronarias, que conllevan a la isquemia miocárdica transmural, y que de persistir lleva a una lesión miocárdica o necrosis. Se ha reportado una mortalidad de la enfermedad del 23 % antes de llegar al hospital, 13% durante el ingreso hospitalario, y de 10% posterior al alta. Lo cual, inclusive, puede aumentar en ausencia de tratamiento entre un 5 a 10% (2). En el caso de Perú, se ha reportado una por IMCEST de aproximadamente 9%, pero con una incidencia de insuficiencia cardíaca posinfarto fue de 28% y de choque cardiogénico de 12% (3). Esta alta tasa de mortalidad y morbilidad hace hincapié en la necesidad de garantizar una evaluación y manejo adecuado de la enfermedad. Por ello, el Seguro Social de Salud (EsSalud) priorizó la realización de la presente guía de práctica clínica (GPC) para establecer lineamientos basados en evidencia para gestionar de la mejor manera los procesos y procedimientos asistenciales de la presente condición


Subject(s)
Patients , Shock, Cardiogenic , Wounds and Injuries , Myocardial Ischemia , Coronary Vessels , Diagnostic Techniques and Procedures , ST Elevation Myocardial Infarction , Heart Failure , Myocardial Infarction
8.
Lima; Perú. ESSALUD. Instituto de Evaluación de Tecnologías en Salud e Investigación; 1 ed; May. 2022. 24 p. ilus.(GPC, 51).
Monography in Spanish | MINSAPERU, LILACS, LIPECS | ID: biblio-1373371

ABSTRACT

La publicación en versión corta, describe las recomendaciones para el manejo infarto agudo de miocardio con elevación persistente del segmento ST (IMCEST) dentro de las primeras 12 horas de inicio de los síntomas, con el fin de contribuir a reducir la mortalidad, mejorar la calidad de vida, y reducir las complicaciones de los pacientes con esta condición.


Subject(s)
Patients , Shock, Cardiogenic , Myocardial Ischemia , Coronary Vessels , Diagnostic Techniques and Procedures , Absenteeism , ST Elevation Myocardial Infarction , Heart Failure
9.
Medicina UPB ; 41(1): 75-79, mar. 2022. Ilus
Article in Spanish | LILACS, COLNAL | ID: biblio-1362712

ABSTRACT

Los aneurismas de las arterias coronarias (AAC) son poco comunes, con una incidencia de 0.3-5.3%. Se definen como una dilatación 1.5 veces mayor al diámetro interno de la arteria normal adyacente. La arteria coronaria derecha es la más comúnmente afectada. Su fisiopatología es poco clara, pero se cree que una de sus principales causas es la aterosclerosis. Los AAC son generalmente asintomáticos o pueden estar asociados a isquemia miocárdica. Su tratamiento aún no está bien establecido, debido al desconocimiento general sobre su historia natural, e incluye desde un manejo conservador hasta el tratamiento quirúrgico. A continuación, se reporta el caso de un paciente con infarto agudo de miocardio y elevación del segmento ST, llevado a coronariografía que evidenció aneurisma de la coronaria derecha, que requirió trombectomía, angioplastia y manejo médico vitalicio ambulatorio.


Coronary artery aneurysms (CAA) are a rare entity with an incidence of 0.3-5.3%. They are dilations of 1.5 times larger than normal adjacent artery, with the right coronary artery as the most affected vessel. Its pathophysiology is unclear but atherosclerosis is believed to be the main cause. CAA are generally asymptomatic but can cause coronary ischemia. Its treatment is yet to be established due to general ignorance about its nature. It ranges from conservative management to surgery. In the following text, we report a case of a patient with acute myocardial infarction presenting ST-segment elevation, who showed a right coronary artery aneurysm in coronary angiography. The patient required thrombectomy, angioplasty and subsequent lifetime outpatient medical management.


Os aneurismas das artérias coronárias (AAC) são pouco comuns, com uma incidência de 0.3-5.3%. Se definem como uma dilatação 1.5 vezes maior ao diâmetro interno da artéria normal adjacente. A artéria coronária direita é a mais comumente afetada. Sua fisiopatologia é pouco clara, mas se crê que uma das suas principais causas é a aterosclerose. Os AAC são geralmente assintomáticos ou podem estar associados a isquemia miocárdica. Seu tratamento ainda não está bem estabelecido, devido ao desconhecimento geral sobre sua história natural, e inclui desde um manejo conservador até o tratamento cirúrgico. A continuação, se reporta o caso de um paciente com infarto agudo de miocárdio e elevação do segmento ST, levado a coronariografia que evidenciou aneurisma da coronária direita, que requereu trombectomia, angioplastia e manejo médico vitalício ambulatório.


Subject(s)
Humans , Adult , Middle Aged , Aged , Aged, 80 and over , Aneurysm , Coronary Angiography , Myocardial Ischemia , Angioplasty , Coronary Vessels , Myocardial Infarction
11.
Int. j. morphol ; 40(4): 1147-1151, 2022. ilus, tab
Article in English | LILACS | ID: biblio-1405244

ABSTRACT

SUMMARY: The ongoing advances in the technology of coronary artery angiograms have put high demands on the basic knowledge of coronary arteries. This study describes the angiographic morphology of the ostium (orifice) of the left coronary artery among Sudanese with respect to sex, age, length, and BMI. The study design is a cross-sectional retrospective hospital-based conducted from 2014 to 2016. The inclusion criterion of participants is adult males and females presented to the cardiac centers for elective angiograms. The exclusion criteria are age below 18 years, documented congenital heart disease, and previous coronary bypass. Angiograms were done using a digital radiographic system. Data was collected through a predesigned data collection sheet. The data were entered and analyzed using SPSS v27. A test of correlation was done between the different variables. The data were presented in the form of tables. A P-value of <0.05 was considered statistically significant. The total number of participants was 441; males and females represent 42.9 % and 57,1 %, respectively. The mean age of participants was 56.24±8.68 years. The left coronary artery originated from the left aortic sinus. The mean diameter and length of the left coronary artery were 3.8±0.70 mm and 8.1576±4.32 mm, respectively. A significant negative correlation was reported between the diameter of the orifice and both age and length of the left coronary artery. A non-significant difference between males and females in the diameter of the left coronary artery at ostium (P=0.058) and a significant difference in the length (P=0.00). Sudanese have the smallest diameter of the orifice of the left coronary artery among Africans. Sudanese males have a smaller diameter of orifice than females; females have the longest arteries. A wider orifice of the left coronary artery is associated with a short arterial length.


RESUMEN: Los avances en la tecnología de los angiogramas de las arterias coronarias constituyen importantes exigencias al conocimiento básico de las arterias coronarias. Este estudio describe la morfología angiográfica del ostio de la arteria coronaria izquierda (ACI) entre los sudaneses respecto al sexo, la edad, la longitud y el IMC. El estudio es un diseño hospitalario retrospectivo transversal realizado entre 2014 y 2016. El criterio de inclusión de los participantes, hombres y mujeres adultos, fue aquellos que se realizaron angiografías electivas en los centros cardiológicos Los criterios de exclusión fueron: edad menor de 18 años, cardiopatía congénita documentada y bypass coronario previo. Los angiogramas se realizaron utilizando un sistema radiográfico digital. Los datos se obtuvieron a través de una ficha de datos prediseñada. Estos fueron ingresados y analizados con SPSS v27. Se realizó una prueba de correlación entre las diferentes variables. Los datos se presentaron en forma de tablas. Un valor P de <0,05 se consideró estadísticamente significativo. El número total de participantes fue de 441; Hombres y mujeres representanron el 42,9 % y 57,1 %, respectivamente. La edad media de los participantes fue de 56,24±8,68 años. La arteria coronaria izquierda se originaba en el seno aórtico izquierdo. El diámetro medio y la longitud de la arteria coronaria izquierda fueron 3,8±0,70 mm y 8,1576±4,32 mm, respectivamente. Se encontró una correlación negativa significativa entre el diámetro del ostio, la edad y la ACI. Además se encontró una diferencia no significativa entre hombres y mujeres en el diámetro del ostio de la ACI (P=0,058) y una diferencia significativa en la longitud (P=0,00). Los sudaneses tienen el diámetro del ostio de la arteria coronaria izquierda más pequeño entre los africanos. Los hombres sudaneses tienen un diámetro del ostio de la arteria coronaria izquierda más pequeña y las mujeres tienen las arterias más largas. Un ostio más ancho de la arteria coronaria izquierda se asocia con una longitud arterial corta.


Subject(s)
Humans , Male , Female , Adult , Middle Aged , Coronary Vessels/diagnostic imaging , Sudan , Angiography , Cross-Sectional Studies , Retrospective Studies , Coronary Vessels/anatomy & histology
12.
Rev. colomb. radiol ; 33(1): 5689-5696, mar. 2022. imag
Article in English, Spanish | LILACS, COLNAL | ID: biblio-1428759

ABSTRACT

Objetivo:El conocimiento de la anatomía venosa coronaria (AVC) tiene importancia crítica para planificar y realizar procedimientos electrofisiológicos como la terapia de resincronización cardiaca (TRC), la terapia de ablación del ventrículo izquierdo y la aurícula derecha y el mapeo de arritmias por catéter. El objetivo es evaluar la viabilidad y las aplicaciones de la resonancia magnética (RM) cardiaca realizada en 3T para la representación no invasiva de la AVC empleando una secuencia tridimensional de realce tardío con gadolinio (RTG-3D). Metodología:Se evaluaron 138 pacientes consecutivos que se sometieron a RM cardiaca 3 T mediante una secuencia RTG-3D durante un año, entre 2016 y 2017. Se identificaron diferentes estructuras venosas coronarias, así como su relación con la fibrosis miocárdica, y otras variables clínicas relevantes. La evaluación de la calidad se realizó mediante tres grupos (óptimos, buenos, malos) de acuerdo con la evaluación visual de cada estudio individual. Se realizaron pruebas de asociación (Chi-cuadrado y Kruskall-Wallis). Resultados:El estudio incluyó 62 mujeres y 76 hombres con una edad promedio de 48 (29-61) años. La secuencia RTG-3D arrojó una calidad diagnóstica (óptima-buena) para la evaluación del AVC en el 76 % de los pacientes (p < 0,001). Se identificaron las siguientes estructuras (pacientes, %): vena interventricular anterior: 110 (79,7 %), gran vena cardiaca: 109 (79 %), vena interventricular posterior: 106 (76,8 %), vena marginal: 53 pacientes (38,4 %) y vena posterolateral: 74 (53,6 %). Se identificó fibrosis miocárdica en 42 pacientes y se registró afectación fibrótica epicárdica de al menos un trayecto en una de las venas coronarias en el 12 % de los pacientes de este subgrupo. Los periodos de adquisición más cortos (p < 0,02) y la realización del estudio bajo anestesia general (p < 0,03) dieron como resultado una calidad del estudio significativamente mejor. Conclusiones:La evaluación no invasiva de la AVC es factible con la secuencia RTG-3D obtenida en 3T RM cardiaca. Este enfoque puede ofrecer una valiosa herramienta clínica para la planificación de procedimientos electrofisiológicos.


Objetivo:El conocimiento de la anatomía venosa coronaria (AVC) tiene importancia crítica para planificar y realizar procedimientos electrofisiológicos como la terapia de resincronización cardiaca (TRC), la terapia de ablación del ventrículo izquierdo y la aurícula derecha y el mapeo de arritmias por catéter. El objetivo es evaluar la viabilidad y las aplicaciones de la resonancia magnética (RM) cardiaca realizada en 3T para la representación no invasiva de la AVC empleando una secuencia tridimensional de realce tardío con gadolinio (RTG-3D). Metodología:Se evaluaron 138 pacientes consecutivos que se sometieron a RM cardiaca 3 T mediante una secuencia RTG-3D durante un año, entre 2016 y 2017. Se identificaron diferentes estructuras venosas coronarias, así como su relación con la fibrosis miocárdica, y otras variables clínicas relevantes. La evaluación de la calidad se realizó mediante tres grupos (óptimos, buenos, malos) de acuerdo con la evaluación visual de cada estudio individual. Se realizaron pruebas de asociación (Chi-cuadrado y Kruskall-Wallis). Resultados:El estudio incluyó 62 mujeres y 76 hombres con una edad promedio de 48 (29-61) años. La secuencia RTG-3D arrojó una calidad diagnóstica (óptima-buena) para la evaluación del AVC en el 76 % de los pacientes (p < 0,001). Se identificaron las siguientes estructuras (pacientes, %): vena interventricular anterior: 110 (79,7 %), gran vena cardiaca: 109 (79 %), vena interventricular posterior: 106 (76,8 %), vena marginal: 53 pacientes (38,4 %) y vena posterolateral: 74 (53,6 %).


Subject(s)
Coronary Vessels , Magnetic Resonance Imaging , Cicatrix , Cardiac Imaging Techniques
13.
Repert. med. cir ; 31(2): 161-169, 2022. ilus., tab.
Article in English, Spanish | LILACS, COLNAL | ID: biblio-1382276

ABSTRACT

Introducción: un evento de muerte súbita supone un gran impacto para la sociedad, siendo importante su estudio para aportar conocimiento y fortalecer estrategias de promoción y prevención. Objetivo: determinar la prevalencia de los diagnósticos anatomopatológicos cardiacos definitivos y los hallazgos histopatológicos asociados con la muerte súbita de origen cardíaco en los pacientes sometidos a autopsias clínicas realizadas en el Hospital de San José de Bogotá DC, Colombia, durante el período 2015 a 2018. Métodos: estudio descriptivo de corte transversal retrospectivo en pacientes a quienes se les realizó autopsia con diagnóstico de muerte súbita de origen cardiovascular en el servicio de patología del Hospital de SanJosé, Bogotá DC, Colombia. Resultados: se incluyeron 178 autopsias con diagnóstico de muerte súbita cardíaca. El promedio global de edad fue 56.1 años (DE: 15.06) con una relación hombre-mujer de 3:1. El hallazgo macroscópico más frecuente fue cardiomegalia (promedio 428.1 g (DE 112.8), acompañado de la presencia de coronariopatía esclerótica (p=0.000) con obstrucción de la luz de las arterias coronarias mayores de 80% (p=0.037). Conclusiones: los diagnósticos anatomopatológicos definitivos prevalentes en la muerte súbita cardiaca fueron cardiopatía isquémica crónica complicada (65%) e infarto agudo de miocardio (16%), datos similares a los reportados a nivel mundial. La cardiomegalia es un hallazgo frecuente que debe valorarse en forma cuidadosa.


Introduction: a sudden death incident has a great impact on society and its study is important to provide understanding for strengthening promotion and prevention strategies. Objective: to determine the prevalence of definitive anatomopathological cardiac diagnoses and histopathological findings associated with sudden death due to a cardiovascular cause based on autopsies performed at Hospital de San José in Bogotá DC, Colombia, during the period between 2015 and 2018. Methods: retrospective descriptive cross-sectional study of cases of sudden cardiac death of cardiovascular origin diagnosed in autopsies performed at the pathology service of Hospital de San José, Bogotá DC, Colombia. Results: 178 autopsies with a diagnosis of sudden cardiac death were included. The overall mean age was 56.1 years (SD: 15.06). Male/female ratio was 3:1. The most frequent macroscopic finding was cardiomegaly (average 428.1 g (SD 112.8), with the presence of sclerotic coronary artery disease (p=0.000) with a blockage greater than 80% (p=0.037) in the major coronary arteries. Conclusions: the prevalent definitive anatomopathological diagnoses in SCD were complicated chronic ischemic heart disease (65%) and acute myocardial infarction (16%). Data obtained in this study is similar to that reported worldwide. Cardiomegaly is a frequent finding that should be carefully evaluated.


Subject(s)
Humans , Male , Female , Middle Aged , Death, Sudden, Cardiac , Coronary Vessels , Autopsy , Heart
14.
Femina ; 50(1): 61-64, 2022. ilus
Article in Portuguese | LILACS | ID: biblio-1358222

ABSTRACT

O infarto agudo do miocárdio no período gravídico-puerperal é uma condição rara em que a principal causa é a dissecção espontânea da artéria coronária. É um evento comumente subdiagnosticado, com pouca literatura disponível e elevado índice de morbimortalidade. Esse relato descreve o caso de uma gestante de 36 semanas de gravidez gemelar, monocoriônica-diamniótica, com infarto agudo do miocárdio secundário à dissecção espontânea da artéria coronária. As equipes de cirurgia cardíaca e obstetrícia optaram pela realização de parto cesariano e histerectomia subtotal, seguido da revascularização da artéria mamária descendente anterior. Discutem-se as orientações adotadas na dissecção espontânea da artéria coronária, bem como a abordagem terapêutica e a conduta obstétrica, quando essa condição ocorre durante a gravidez.(AU)


Acute myocardial infarction in the pregnancy-puerperal period is a rare condition the main cause of which is the spontaneous coronary artery dissection. A commonly underdiagnosed event with little available literature and a high rate of morbidity and mortality. This case reports a 36-week pregnant woman of mono-chorionic-diamniotic pregnancy who had a myocardial infarction secondary to a spontaneous coronary artery dissection. In a joint discussion between the team of cardiac surgery and obstetrics, it was decided to perform a cesarean delivery and subtotal hysterectomy followed by revascularization of the mammary anterior descendant. It discusses the conducts to be adopted in a case of spontaneous coronary artery dissection as well as therapeutic approaches and obstetric conducts to be taken in a case of dissection during pregnancy.(AU)


Subject(s)
Humans , Female , Pregnancy , Pregnancy Complications/surgery , Coronary Vessels/pathology , Dissection/adverse effects , Acute Coronary Syndrome/pathology , Myocardial Infarction/complications , Cesarean Section , Pregnancy, High-Risk , Pregnancy, Twin , Heart Disease Risk Factors , Hysterectomy , Myocardial Infarction/etiology
16.
Chinese Journal of Contemporary Pediatrics ; (12): 681-686, 2022.
Article in Chinese | WPRIM | ID: wpr-939648

ABSTRACT

OBJECTIVES@#To summarize the clinical features of liver damage in children in the acute stage of Kawasaki disease (KD), and to investigate the clinical value of liver damage in predicting coronary artery lesion and no response to intravenous immunoglobulin (IVIG) in children with KD.@*METHODS@#The medical data were collected from 925 children who were diagnosed with KD for the first time in Beijing Children's Hospital from January 1, 2016 to December 31, 2017. According to the presence or absence of abnormal alanine aminotransferase (ALT) level on admission, the children were divided into a liver damage group (n=284) and a non-liver damage group (n=641). A logistic regression analysis was used to investigate the clinical value of the indicators including liver damage in predicting coronary artery lesion and no response to IVIG in children with KD.@*RESULTS@#Compared with the non-liver damage group, the liver damage group had a significantly earlier admission time and significantly higher serum levels of inflammatory indicators (P<0.05). The liver damage group had a significantly higher incidence rate of coronary artery lesion on admission than the non-liver damage group (P=0.034). After initial IVIG therapy, the liver damage group had a significantly higher proportion of children with no response to IVIG than the non-liver damage group (P<0.001). In children with KD, coronary artery lesion was associated with the reduction in the hemoglobin level and the increases in platelet count, C-reactive protein, and ALT (P<0.05), and no response to IVIG was associated with limb changes, the reduction in the hemoglobin level, the increases in platelet count, C-reactive protein, and ALT, and coronary artery lesion (P<0.05).@*CONCLUSIONS@#Compared with those without liver damage, the children in the early stage of KD with liver damage tend to develop clinical symptoms early and have higher levels of inflammatory indicators, and they are more likely to have coronary artery lesion and show no response to IVIG treatment.


Subject(s)
Child , Humans , C-Reactive Protein/analysis , Coronary Vessels/pathology , Hemoglobins/analysis , Immunoglobulins, Intravenous/therapeutic use , Liver Diseases , Mucocutaneous Lymph Node Syndrome/drug therapy , Retrospective Studies
17.
Chinese Journal of Contemporary Pediatrics ; (12): 597-603, 2022.
Article in Chinese | WPRIM | ID: wpr-939636

ABSTRACT

Kawasaki disease (KD) is one of the common acquired heart diseases in children aged <5 years and is an acute systemic vasculitis. After nearly 60 years of research, intravenous immunoglobulin combined with oral aspirin has become the first-line treatment for the prevention of coronary artery lesion in acute KD; however, there are still controversies over the role and optimal dose of aspirin. The consensus was formulated based on the latest research findings of KD treatment in China and overseas and comprehensive discussion of pediatric experts in China and put forward recommendations on the dose, usage, and course of aspirin treatment in the first-line treatment of KD.


Subject(s)
Child , Humans , Aspirin/therapeutic use , Consensus , Coronary Vessels/pathology , Immunoglobulins, Intravenous/therapeutic use , Mucocutaneous Lymph Node Syndrome/pathology
18.
Journal of Biomedical Engineering ; (6): 339-346, 2022.
Article in Chinese | WPRIM | ID: wpr-928230

ABSTRACT

To explore the influence of bionic texture coronary stents on hemodynamics, a type of bioabsorbable polylactic acid coronary stents was designed, for which a finite element analysis method was used to carry out simulation analysis on blood flow field after the implantation of bionic texture stents with three different shapes (rectangle, triangle and trapezoid), thus revealing the influence of groove shape and size on hemodynamics, and identifying the optimal solution of bionic texture groove. The results showed that the influence of bionic texture grooves of different shapes and sizes on the lower wall shear stress region had a certain regularity. Specifically, the improvement effect of grooves above 0.06 mm on blood flow characteristics was poor, and the effect of grooves below 0.06 mm was good. Furthermore, the smaller the size is, the better the improvement effect is, and the 0.02 mm triangular groove had the best improvement effect. Based on the results of this study, it is expected that bionic texture stents have provided a new method for reducing in-stent restenosis.


Subject(s)
Bionics , Computer Simulation , Coronary Vessels , Hemodynamics/physiology , Models, Cardiovascular , Stents , Stress, Mechanical
19.
Ibom Medical Journal ; 15(2): 159-165, 2022. tables, figures
Article in English | AIM | ID: biblio-1379854

ABSTRACT

Background: Peripheral artery disease (PAD) is a progressive disorder characterized by stenosis and/or occlusion of large and medium-sized arteries, other than those that supply the heart (coronary artery disease, CAD) or the brain (cerebrovascular disease). It is increasingly becoming a challenge in developing countries owing to poverty and ignorance. Objective: To review the scourge of peripheral artery diseases in our institution in a low-income setting with a view to determining the role of a vascular surgeon. Materials and method: Over a period of 15 years (2006 to 2021), patients with documented PAD were reviewed. Data of the patients were retrieved from the record department and such data included demography, aetiology/risk factors, clinical features and investigative parameters as well as modes of treatment especially vascular surgery. Results: There were 35 patients which comprised 20 males and 15 females with male to female ratio of 4:3. Age range affected most was 71-80 years. Aetiologically, artherosclerosis was dominant. Leriche Fontaine classification used in clinical evaluation showed that type III was dominant. 6 Ps (pain, pulselessness, paralysis, paraesthesie, pallor and poikilothermia) of vascular ischemia were evident. Doppler/duplex ultrasound and computer angiography were used in diagnosis. Medical and or surgical treatments were used in patients' management. Vascular and or orthopedic surgery played significant role. Conclusion: PAD affects the lower extremities more commonly than the upper extremity vessels especially in the elderly leading to intermittent claudicationn which is the most recognized symptomatic subset of lower extremity PAD. Morbidity and mortality emanating from inadequate revascularization are burden to emerging economy like ours.


Subject(s)
Humans , Male , Female , Angioplasty, Laser , Coronary Vessels , Vascular Surgical Procedures , Cerebrovascular Disorders , Endarterectomy, Carotid , Cardiovascular Nursing
20.
Ann. afr. méd. (En ligne) ; 16(1): 4931-4938, 2022. tales, figures
Article in French | AIM | ID: biblio-1410559

ABSTRACT

Contexte et objectif. La maladie athéromateuse dont la coronaropathie étant une pathologie diffuse peut être prévenue par le contrôle des facteurs de risqué cardiovasculaire. Le but de cette étude était de décrire les caractéristiques pharmaco doppler pénien des patients coronariens souffrant de dysfonction érectile. Méthodes. Il s'agissait d'une série analytique des cas suivie entre juin 2020 et février 2021. Elle concernait des patients ayant des lésions athéromateuses significatives à la coronographie et souffrant de dysfonction érectile. Nous avons évalué les caractéristiques pharmaco doppler pénien. La qualité d'érection était appréciée par le score de rigidité Erectile Hardness Score (EHS). Résultats. Trente-six patients étaient inclus. L'âge moyen était de 56 ± 8,4 ans. le pic de Vitesse systolique au repos (PSVr) moyen des patients était de 13,7 cm/s ± 5,9. Le pic de vitesse systolique post injection (PSV pi) moyen des patients était de 23,9 cm/s ± 5,4. Les causes étaient principalement artérielles de 75%. La qualité d'érection était appréciée selon le score EHS : E1 (83%), E2 (22%), E3 (5%) et E4 (3%). Conclusion. La dysfunction érectile est associée aux facteurs de risque cardiovasculaire selon plusieurs études. L'echodoppler pénien avait occupé une place importante dans le diagnostic étiologique. Les causes retrouvées étaient principalement artérielles avec une baisse de PSVpi<25 cm/s.


Subject(s)
Humans , Coronary Artery Disease , Heart Disease Risk Factors , Blood Pressure , Coronary Vessels , Erectile Dysfunction
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