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Medicina (B.Aires) ; 81(2): 282-285, June 2021. graf
Article in English | LILACS | ID: biblio-1287281


Abstract Total anomalous pulmonary venous drainage is a rare and diverse anomaly, accounting for 1% to 3% of patients with congenital heart disease. Newborns with diagnosis of an obstructed total anomalous pulmonary venous dainage are extremely ill soon after birth and often present with severe cyanosis, pulmonary hypertension and low cardiac output requiring urgent surgical intervention. Transcatheter palliative stenting of the obstructive vertical vein can be an acceptable alternative as a bailout intervention before complete surgical correction is undertaken. This report of two cases highlights the feasibility, safety and effectiveness of the inter ventional palliative procedure and confirms that this technique can be an acceptable and attractive bridge in the algorithm of medical decisions during the evaluation of these critical patients.

Resumen El drenaje venoso pulmonar anómalo total es una enfermedad poco frecuente y de presentación diversa y se observa en el 1% a 3% de las cardiopatías congénitas. Si se asocia a obstrucción, se convierte en una afección grave en el recién nacido, mostrando cianosis intensa, hipertensión arterial pulmonar y bajo gasto cardíaco con indicación de intervención quirúrgica de urgencia. El implante de stent por cateterismo de forma paliativa para aliviar la obstrucción puede ser una alternativa aceptable de tratamiento como intervención de rescate antes de la corrección quirúrgica definitiva. Presentamos dos casos de intervención percutánea paliativa mostrando que esta técnica puede ser eficaz como puente al tratamiento quirúrgico definitivo para ser incorporado en la toma de decisiones de estos pacientes críticos.

Humans , Infant, Newborn , Pulmonary Veins/surgery , Pulmonary Veins/diagnostic imaging , Heart Defects, Congenital , Hypertension, Pulmonary , Stents , Drainage
Int. braz. j. urol ; 47(3): 574-583, May-June 2021. tab, graf
Article in English | LILACS | ID: biblio-1154511


ABSTRACT Purpose: To describe our experience in the management of retained encrusted ureteral stents using a single session combined endourological approach. Materials and Methods: Patients with retained encrusted ureteral stents who had been submitted to a single session combined endourological approach from June 2010 to June 2018 were prospectively evaluated. Patients were divided according to the Forgotten-Encrusted-Calcified (FECal) classification. The stone burden, surgical intervention, number of interventions until stone free status, operation time, hospital stay, complications, stone analysis, and stone-free rate were compared between groups. ANOVA was used to compare numerical variables, and the Mann-Whitney or Chi-square test to compare categorical variables between groups. Results: We evaluated 50 patients with a mean follow-up of 2.9±1.4 years (mean±SD). The groups were comparable in terms of age, sex, laterality, BMI, comorbidities, ASA, reason for stent passage, and indwelling time. The stone burden was higher for grades IV and V (p=0.027). Percutaneous nephrolithotomy was the most common procedure (p=0.004) for grades IV and V. The number of procedures until the patients were stone-free was 1.92±1.40, and the hospital stay (4.2±2.5 days), complications (22%), and stone analysis (66% calcium oxalate) were similar between groups. The stone-free rate was lower in grades III to V (60%, 54.5%, and 50%). Conclusions: The endoscopic combined approach in the supine position is a safe and feasible technique that allows removal of retained and encrusted stents in a single procedure. The FECal classification seems to be useful for surgical planning.

Humans , Ureter , Ureteral Calculi/surgery , Stents , Retrospective Studies , Device Removal
Int. braz. j. urol ; 47(3): 596-609, May-June 2021. tab, graf
Article in English | LILACS | ID: biblio-1154501


ABSTRACT Background: Many medical therapies have been tested to deal with urinary stent-related symptoms (USRS). Several preventive and pharmaceutical methods have been already used for better compatibility of stents. However, the existing evidence for pharmacological treatment is still controversial. This study aims to evaluate the effects of pregabalin, solifenacin, and combination therapy on ureteral double-J stent-related symptoms following ureteroscopy and transureteral lithotripsy (TUL). Materials and methods: In a randomized controlled clinical trial, from November 2017 to March 2019, 256 patients who underwent ureteroscopy were enrolled. Patients were randomly divided into four groups including: group A received pregabalin 75mg BID (twice daily), group B received solifenacin 5mg orally once daily, group C received combination of pregabalin and solifenacin and the group D (control) given no drugs. Results: One hundred and fifty-one (58.9%) males and 101 (41.1%) females were enrolled in this study with a mean age of 43.47±7 (p=0.32, p=0.67). USSQ domains score such as urinary symptoms, pain, general condition, work performance, sexual matters and additional problems were significantly differenced during second and fourth week of follow-up among study groups (p <0.0001). In Tukey's multiple comparison test, urinary symptoms (p=0.735), pain (p=0.954) and sexual matters (p=0.080) in second week and work performance in forth week in group B was not significantly better than group D. Only group C in all indexes of USSQ showed significantly beneficial effects over group D (p <0.0001). Conclusion: Combination therapy of pregabalin and solifenacin has a significant effect on stent-related symptoms and is preferred over monotherapy of the respected medications.

Humans , Male , Female , Adult , Ureter , Stents/adverse effects , Solifenacin Succinate/therapeutic use , Quality of Life , Pregabalin/therapeutic use , Middle Aged
Arq. gastroenterol ; 58(1): 71-76, Jan.-Mar. 2021. tab, graf
Article in English | LILACS | ID: biblio-1248986


ABSTRACT BACKGROUND: Hepatobiliary surgery and hepatic trauma are frequent causes of bile leaks and this feared complication can be safely managed by endoscopic retrograde cholangiopancreatography (ERCP). The approach consists of sphincterotomy alone, biliary stenting or a combination of the two but the optimal form remains unclear. OBJECTIVE: The aim of this study is to compare sphincterotomy alone versus sphincterotomy plus biliary stent placement in the treatment of post-surgical and traumatic bile leaks. METHODS: We retrospectively analyzed 31 patients with the final ERCP diagnosis of "bile leak". Data collected included patient demographics, etiology of the leak and the procedure details. The treatment techniques were divided into two groups: sphincterotomy alone vs. sphincterotomy plus biliary stenting. We evaluated the volume of the abdominal surgical drain before and after each procedure and the number of days needed until cessation of drainage post ERCP. RESULTS: A total of 31 patients (18 men and 3 women; mean age, 51 years) with bile leaks were evaluated. Laparoscopic cholecystectomy was the etiology of the leak in 14 (45%) cases, followed by conventional cholecystectomy in 9 (29%) patients, hepatic trauma in 5 (16%) patients, and hepatectomy secondary to neoplasia in 3 (9.7%) patients. The most frequent location of the leaks was the cystic duct stump with 12 (38.6%) cases, followed by hepatic common duct in 10 (32%) cases, common bile duct in 7 (22%) cases and the liver bed in 2 (6.5%) cases. 71% of the patients were treated with sphincterotomy plus biliary stenting, and 29% with sphincterotomy alone. There was significant difference between the volume drained before and after both procedures (P<0.05). However, when comparing sphincterotomy alone and sphincterotomy plus biliary stenting, regarding the volume drained and the days needed to cessation of drainage, there was no statistical difference in both cases (P>0.005). CONCLUSION: ERCP remains the first line treatment for bile leaks with no difference between sphincterotomy alone vs sphincterotomy plus stent placement.

RESUMO CONTEXTO: Cirurgia hepatobiliar e trauma hepático são causas frequentes de fístulas biliares, e esta temida complicação pode ser manejada de forma segura através da colangiopancreatografia retrógrada endoscópica (CPRE). O procedimento consiste em esfincterotomia isolada, passagem de prótese biliar ou combinação das duas técnicas, porém a forma ideal permanece incerta. OBJETIVO: O objetivo desse estudo é comparar a realização de esfincterotomia isolada versus locação de prótese biliar no tratamento de fístulas pós-cirúrgicas e traumáticas. MÉTODOS: Foram analisados de forma retrospectiva 31 CPREs com diagnóstico final de "fístula biliar". A informação colhida incluía dados demográficos dos pacientes, etiologia das fístulas e detalhes dos procedimentos. As técnicas de tratamentos foram divididas em dois grupos: esfincterotomia isolada vs esfincterotomia associada a locação de prótese biliar. Foram analisados os volumes dos drenos abdominais cirúrgicos antes e depois de cada procedimento e o número de dias necessários para que ocorresse cessação da drenagem pelo dreno abdominal cirúrgico após a CPRE. RESULTADOS: Um total de 31 pacientes (18 homens e 3 mulheres; idade média de 51 anos) com fístulas biliares foram avaliados. Colecistectomia laparoscópica foi a etiologia da fístula em 14 (45%) casos, seguida de colecistectomia convenvional em 9 (29%) pacientes, trauma hepático em 5 (16%) pacientes, e hepatectomia secundária a neoplasia em 3 (9,7%) pacientes. As localizações mais frequentes das fístulas foram: coto do ducto císticos com 12 (38,6%) casos, seguido de ducto hepático comum em 10 (32%) casos, ducto colédoco em 7 (22%) cases e leito hepático em 2 (6,5%) casos. 71% dos pacientes foram tratados com esfincterotomia associada a passagem de prótese biliar e 29% com esfincterotomia isolada. Houve diferença estatística em relação ao volume drenado antes e depois de ambos os procedimentos (P<0,05). Entretanto, quando comparada esfincterotomia isolada e esfincterotomia associada a passagem de prótese biliar, em relação ao volume drenado e ao número de dias necessários para cessação da drenagem, não houve diferença estatística em ambos os casos (P>0,005). CONCLUSÃO: A CPRE permanece como tratamento de primeira linha no tratamento de fístulas biliares, sem diferença entra a esfincterotomia isolada versus esfincterotomia associada a passagem de prótese biliar.

Humans , Male , Female , Cholecystectomy, Laparoscopic , Sphincterotomy , Postoperative Complications/surgery , Bile , Stents , Sphincterotomy, Endoscopic/adverse effects , Hospitals , Middle Aged
Article in English | WPRIM | ID: wpr-880652


OBJECTIVES@#To analyze the effect of hyperlipoproteinemia (α) on immediate expansion after coronary stent implantation guided by intravascular ultrasound (IVUS).@*METHODS@#A total of 160 patients (175 lesions) with coronary heart disease diagnosed by coronary artery angiography, who were performed percutaneous intervention guided by IVUS in the Department of Cardiology, Third Xiangya Hospital, Central South University, were enrolled retrospectively.According to the concentration of lipoproteina, the patients were divided into 2 groups: a hyperlipoproteinemia (α) group and a control group. Cardiac ejection fraction was measured with echocardiography. Logistic regression was used to analyze the influential factors for hyperlipoproteinemia (α). The target vessel was examined by IVUS to analyze the immediate expansion effect of hyperlipoproteinemia (α) after stent implantation.@*RESULTS@#The mean stent expansion index, lesion length, stent number, stent symmetry index and posterior balloon diameter were (94.73±18.9)%, (52.92±29.1) mm, (2.11±0.85), (83.62±13.07)%, and (9.46±2.00) mm in the hyperlipoproteinemia (α) group, respectively. Compared with the control group, there were significantly difference (all @*CONCLUSIONS@#Hyperlipoproteinemia (α) appears to be a predictor of stent underexpansion, and the decreased creatinine clearance rate is an independent risk factor for hyperlipoproteinemia (α).

Coronary Angiography , Coronary Artery Disease/surgery , Humans , Lipoproteins , Percutaneous Coronary Intervention/adverse effects , Retrospective Studies , Risk Factors , Stents/adverse effects , Treatment Outcome , Ultrasonography, Interventional
Article in English | WPRIM | ID: wpr-880647


Type A aortic dissection (AD) is a critical and severe disease with high mortality. The Sun's operation is a standard surgical method for this kind of disease at present. For the procedure, an elephant trunk stent is inserted into the true lumen of the descending aorta and the aortic arch is replaced. A patient was admitted to the First Hospital of Lanzhou University due to sudden chest and back pain for 6 days. Computed tomography angiography (CTA) showed type A AD. Ascending aorta replacement, Sun's operation, and ascending aorta to right femoral artery bypass grafting were performed. After surgery, the patient's condition was worsened. The digital subtraction angiography (DSA) showed the elephant trunk stent was inserted into the false lumen of AD, leading to the occlusion of the large blood vessel at the distal part of the abdominal aorta and below. Although we performed intima puncture and endovascular aortic repair, the patient was still dead.

Aneurysm, Dissecting/surgery , Aorta, Abdominal , Aorta, Thoracic/surgery , Blood Vessel Prosthesis Implantation/adverse effects , Humans , Stents/adverse effects , Treatment Outcome
Article in Chinese | WPRIM | ID: wpr-880448


Biliary stent has been widely used in the treatment of biliary stricture and obstruction, it can relieve the pain of patients effectively, but bacterial infection and stent obstruction are still troublesome after surgery. We introduce the mechanism of infection and stent blockage caused by bacterial invasion after biliary stent implantation, and expound the formation mechanism of bacterial biofilm and bile sludge in this review. Antibacterial biliary stent is an effective way to inhibit biliary tract infection, the literatures on antibacterial modification of biliary stent with different antibacterial methods in domestic and abroad are reviewed, and the research prospect of antibacterial biliary stent is summarized and prospected.

Anti-Bacterial Agents/pharmacology , Bile , Biliary Tract , Cholestasis , Humans , Stents
Article in Chinese | WPRIM | ID: wpr-880436


Effects of heat treatment conditions (including temperature and time) on the shape memory recovery and corrosion resistance of NiTi self-expanding vascular stents were studied based on working mechanism and clinical use. The

Alloys , Corrosion , Hot Temperature , Materials Testing , Stents , Surface Properties , Temperature , Titanium
Clinics ; 76: e2812, 2021. tab, graf
Article in English | LILACS | ID: biblio-1249575


OBJECTIVES: We sought to analyze the hemodynamic effects of the multilayer flow-modulated stent (MFMS) in Thoracoabdominal aortic aneurysms (TAAAs). METHODS: The hemodynamic effects of MFMS were analyzed in aortic thoracoabdominal aneurysms in experimental swine models. We randomly assigned 18 pigs to the stent or control groups and underwent the creation of an artificial bovine pericardium transrenal aneurysm. In the stent group, an MFMS (Cardiatis, Isnes, Belgium) was immediately implanted. After 4 weeks, we evaluated aneurysm sac thrombosis and renal branch patency by angiography, duplex scan, and morphological analysis. RESULTS: All the renal arteries remained patent after re-evaluation in both groups. Aneurysmal sac thrombosis was absent in the control group, whereas in the stent group it was present in 66.7% of aneurysmal sacs (p=0.061). The mean final aneurysm sac diameter was significantly lower in the stent group (mean estimated reduction, 6.90 mm; p=0.021). The proximal neck diameter decreased significantly in the stent group (mean difference, 2.51 mm; p=0.022) and grew significantly in the control group (mean difference, 3.02 mm; p=0.007). The distal neck diameter increased significantly in the control group (mean difference, 3.24 mm; p=0.017). There were no significant findings regarding distal neck measurements in the stent group. CONCLUSION: The MFMSs remained patent and did not obstruct the renal arteries within 4 weeks. In the stent group, the device was also associated with a significant decrease in aneurysmal sac diameter and a large proportion (albeit non-significant) of aneurysmal sac thrombosis.

Animals , Aortic Aneurysm , Aortic Aneurysm, Abdominal/surgery , Blood Vessel Prosthesis Implantation , Endovascular Procedures , Prosthesis Design , Renal Artery/surgery , Renal Artery/diagnostic imaging , Swine , Blood Vessel Prosthesis , Cattle , Stents , Treatment Outcome , Models, Theoretical
Einstein (Säo Paulo) ; 19: eRC5521, 2021. graf
Article in English | LILACS | ID: biblio-1154093


ABSTRACT Sophisticated imaging systems have helped to redefine the clinical presentation of acute macular neuroretinopathy and have markedly enhanced diagnostic sensitivity. The proposed mechanism of paracentral acute middle maculopathy is related to ischemia at the level of the superficial and deep retinal capillary plexi. This is a case report of a patient who developed an acute macular neuroretinopathy after an uneventful angioplasty with stents in the coronary artery.

RESUMO Sistemas de imagem sofisticados ajudaram a redefinir a apresentação clínica da neurorretinopatia macular aguda e têm sensibilidade diagnóstica marcadamente aumentada. A maculopatia média aguda paracentral tem sido relacionada à isquemia ao nível dos plexos capilares superficial e profundo da retina. Este é um relato de caso de paciente que desenvolveu uma neurorretinopatia macular aguda após uma cirurgia de angioplastia com stents da artéria coronária sem complicações.

Humans , Female , Stents/adverse effects , Angioplasty/adverse effects , Coronary Vessels/surgery , Atherosclerosis/surgery , Fluorescein Angiography , Acute Disease , Tomography, Optical Coherence , White Dot Syndromes/etiology , White Dot Syndromes/diagnostic imaging , Macular Degeneration , Middle Aged
Repert. med. cir ; 30(1): 68-71, 2021. ilus.
Article in English, Spanish | LILACS, COLNAL | ID: biblio-1349138


Introducción: El síndrome de limb-shaking o sacudida de extremidades como presentación de un ataque isquémico transitorio es raro y suele asociarse con estenosis de las arterias carótidas internas. El principal diagnóstico diferencial es con crisis convulsivas. Presentación del caso: presentamos el caso de un paciente con estenosis carotídea intracraneal bilateral que cursó con sacudidas en extremidades y tuvo mejoría clínica satisfactoria tras un procedimiento con stent.

Limb-shaking syndrome or involuntary shaking movements of the affected limbs as a manifestation of a transient ischemic attack is rare and often is associated with internal carotid artery stenosis. The main differential diagnosis is a convulsive seizure. We present the case of a patient with bilateral intracranial carotid artery stenosis presenting as limb shaking syndrome, showing satisfactory clinical improvement after undergoing stent revascularization.

Humans , Male , Aged , Carotid Stenosis , Stroke , Ischemic Stroke , Stents , Ischemic Attack, Transient , Dyskinesias
Article in Chinese | WPRIM | ID: wpr-879278


Lower extremity movement is a complex and large range of limb movement. Arterial stents implanted in lower extremity are prone to complex mechanical deformation, so the stent is required to have high comprehensive mechanical properties. In order to evaluate the mechanical property of different stents, in this paper, finite element method was used to simulate and compare the mechanical properties of six nitinol stents (Absolute Pro, Complete SE, Lifestent, Protégé EverFlex, Pulsar-35 and New) under different deformation modes, such as radial compression, axial compression/tension, bending and torsion, and the radial support performance of the stents was verified by experiments. The results showed that the comprehensive performance of New stent was better than other stents. Among which the radial support performance was higher than Absolute Pro and Pulsar-35 stent, the axial support performance was better than Complete SE, Lifestent and Protégé EverFlex stent, the flexibility was superior to Protégé Everflex stent, and the torsion performance was better than Complete SE, Lifestent and Protégé Everflex stent. The TTR2 type radial support force tester was used to test the radial support performance of 6 types, and the finite element analysis results were verified. The mechanical properties of the stent are closely related to the structural size. The result provides a reference for choosing a suitable stent according to the needs of the diseased location in clinical applications.

Alloys , Femoral Artery , Finite Element Analysis , Lower Extremity , Mechanical Phenomena , Prosthesis Design , Stents , Stress, Mechanical
Rev. bras. cir. cardiovasc ; 35(6): 934-941, Nov.-Dec. 2020. tab, graf
Article in English | LILACS, SES-SP | ID: biblio-1143992


Abstract Introduction: The aim of this study is to compare postoperative outcomes and follow-up of two different modifications facilitating surgical technique of frozen elephant trunk (FET) procedure for complex thoracic aortic diseases - zone 0 (fixation with total arch debranching) and zone 3 (fixation with islet-shape arch repair). Methods: From May 2012 to December 2018, data were collected from 139 patients who had been treated with FET procedure for complex thoracic aortic diseases. According to Ishimaru arch map, patients with proximal anastomotic site of hybrid graft at zone 0 and zone 3 were grouped as Group A (n=58, 41.7%) and Group B (n=81, 58.3%), respectively. Mean age of study population was 54.7±11.4 years, and 111 patients were male (79.9%). Results: In-hospital mortality was observed in 20 (14.4%) patients (n=12, acute type A aortic dissection, and n=4, previous aortic dissection surgery). There was no significant difference between both groups in terms of in-hospital mortality. Four patients from Group A and three patients from Group B had permanent neurological deficit (P=0.32). Three patients from both groups had transient spinal cord ischemia (P=0.334). Although mean total perfusion time was longer in Group A, duration of visceral ischemia, when compared with Group B, was shorter (P<0.001). Five-year survival rate was 82.8% in Group A and 81.5% in Group B (P=0.876). Conclusion: FET procedure is a feasible repair technique in the treatment of complex aortic diseases, providing satisfactory early results. Because of its advantageous aspects, zone 0 fixation with debranching is the preferred technique in our clinic.

Humans , Male , Female , Adult , Middle Aged , Aged , Aortic Aneurysm, Thoracic/surgery , Aortic Aneurysm, Thoracic/diagnostic imaging , Blood Vessel Prosthesis Implantation , Aneurysm, Dissecting/surgery , Aneurysm, Dissecting/diagnostic imaging , Aorta, Thoracic/surgery , Blood Vessel Prosthesis , Stents , Retrospective Studies , Treatment Outcome
Rev. Assoc. Med. Bras. (1992) ; 66(11): 1521-1525, Nov. 2020. graf
Article in English | LILACS, SES-SP | ID: biblio-1143633


SUMMARY INTRODUCTION: EUS-guided gastroenterostomy (EUS-GE) is a novel procedure for palliation of malignant gastric outlet obstruction (GOO). Our aim was to evaluate the outcomes of this technique in our initial experience. METHODS: Patients with GOO from our institute were included. Technical success was defined as the successful creation of a gastroenterostomy. Clinical success was defined as the ability to tolerate a soft diet after the procedure. We assessed adverse events and diet tolerance 1 month after the procedure. RESULTS: Three patients were included. Technical and clinical success was achieved in all cases. There were no adverse events and good diet tolerance was observed 1 month after the procedure in the included patients. CONCLUSION: EUS-GE is a promising treatment for patients with GOO.

RESUMO INTRODUÇÃO: A gastroenterostomia ecoguiada é um novo procedimento para paliação da obstrução maligna gastroduodenal. Nosso objetivo foi avaliar os resultados dessa técnica em nossa experiência inicial. MÉTODOS: Foram incluídos pacientes com obstrução maligna gastroduodenal de nossa instituição. O sucesso técnico foi definido como a realização adequada de uma gastroenterostomia. O sucesso clínico foi definido como boa aceitação de dieta pastosa durante a internação. Os eventos adversos e a aceitação alimentar foram avaliados um mês após o procedimento. RESULTADOS: Três pacientes foram incluídos. Os sucessos técnico e clínico foram alcançados em todos os casos. Não houve eventos adversos e a aceitação alimentar permaneceu adequada um mês após o procedimento nos pacientes incluídos. CONCLUSÃO: O EUS-GE é um tratamento promissor para pacientes com obstrução maligna gastroduodenal.

Humans , Gastroenterostomy , Endosonography , Brazil , Stents , Gastric Outlet Obstruction/surgery , Gastric Outlet Obstruction/etiology , Gastric Outlet Obstruction/diagnostic imaging , Tertiary Care Centers
Rev. bras. cir. cardiovasc ; 35(5): 781-788, Sept.-Oct. 2020. tab, graf
Article in English | LILACS, SES-SP | ID: biblio-1137328


Abstract We performed a review of the literature (until August 01, 2019) on the occasion of the first transcaval approach for transcatheter aortic valve implantation in our hospital. This review focuses mainly on the indications of this alternative access route to the aorta. It may be useful for vascular surgeons in selected cases, such as the treatment of endoleaks after endovascular aneurysm repair and thoracic endovascular aneurysm repair. We describe historical aspects of transcaval access to the aorta, experimental studies, available case series and outcomes. Finally, we summarize the most significant technical aspects of this little-known access.

Humans , Male , Aortic Aneurysm, Abdominal/surgery , Blood Vessel Prosthesis Implantation , Endovascular Procedures , Surgeons , Aorta, Abdominal/surgery , Blood Vessel Prosthesis , Stents , Treatment Outcome
Rev. colomb. cardiol ; 27(5): 380-387, sep.-oct. 2020. tab, graf
Article in English | LILACS, COLNAL | ID: biblio-1289246


Abstract Objective: To determine the association between body mass index and indication of angioplasty with stent implantation in women over 50 years of age. Material and methods: Retrospective analytical study, cross-sectional. It were evaluated 83 clinical records of women older than 50 years of age who underwent angiography due to coronary artery disease and were hospitalized in Peruvian Naval Medical Center between 2010 and 2017. A Poisson regression analysis was performed to determine the association. Results: The mean ± standard deviation of age was 66.51 ± 8.94 years. 81.93% had two or more comorbidities. The frequency of angioplasties with stent implantation was 58%. Body mass index in range of obesity (45.83%) was more frequent in patients who received the implant. In the adjusted regression model, overweight patients had lower probability (PR 0.83, 95% CI 0.68 - 0.98) to have the indication of implantation as compared to patients with body mass index less than 25 kg/m2. Conclusions: Although obesity paradox relationship between body mass index and angioplasty with stent indication has been demonstrated by the multivariate analysis of this study, it is necessary to evaluate obesity with better markers than body mass index before assuming that obesity is a good prognostic factor for coronary artery disease in our patient.

Resumen Objetivo: Determinar la asociación entre índice de masa corporal e indicación de angioplastia con implantación de stent en mujeres mayores de 50 años. Material y métodos: Estudio analítico retrospectivo y transversal. Se evaluaron 83 historias clínicas de mujeres mayores de 50 años, a quienes se les practicó angiografía debido a cardiopatía coronaria y fueron hospitalizadas en el Centro Médico Naval de Perú entre 2010 y 2017. Se realizó un análisis de regresión de Poisson para determinar la asociación. Resultados: La media ± desviación estándar de la edad fue de 66,51 ± 8,94 años. El 81,93% de los casos tenía dos o más comorbilidades. La frecuencia de angioplastias con implantación de stent fue del 58%. El índice de masa corporal en rango de obesidad (45,83%) fue más frecuente en las pacientes que recibieron el implante. En el modelo de regresión ajustado, las pacientes con sobrepeso tuvieron menor probabilidad (PR 0,83, 95% IC 0,68 - 0,98) de indicación de implantación, en comparación con las pacientes con índice de masa corporal inferior a 25 kg/m2. Conclusiones: Aunque la paradoja de la relación de la obesidad entre índice de masa corporal y angioplastia con indicación de stent ha sido demostrada por el análisis multivariante de este estudio, es necesario evaluar la obesidad con mejores marcadores que el índice de masa corporal, antes de asumir que la obesidad es un buen factor pronóstico de cardiopatía coronaria en las pacientes.

Humans , Male , Middle Aged , Angioplasty , Coronary Disease , Peru , Coronary Artery Disease , Angiography , Stents , Cross-Sectional Studies
Arq. bras. oftalmol ; 83(5): 417-423, Sept.-Oct. 2020. tab, graf
Article in English | LILACS | ID: biblio-1131620


ABSTRACT Purposes: To evaluate changes in ocular blood flow and subfoveal choroidal thickness in patients with symptomatic carotid artery stenosis after carotid artery stenting. Methods: We included 15 men (mean age, 63.6 ± 9.1 years) with symptomatic carotid artery stenosis and 18 healthy volunteers (all men; mean age, 63.7 ± 5.3 years). All participants underwent detailed ophthalmologic examinations including choroidal thickness measurement using enhanced depth-imaging optic coherence tomography. The patients also underwent posterior ciliary artery blood flow measurements using color Doppler ultrasonography before and after carotid artery stenting. Results: Patients lacked ocular ischemic symptoms. Their peak systolic and end-diastolic velocities increased to 10.1 ± 13.1 (p=0.005) and 3.9 ± 6.3 (p=0.064) cm/s, respectively, after the procedure. Subfoveal choroidal thicknesses were significantly thinner in patients with carotid artery stenosis than those in the healthy controls (p=0.01). But during the first week post-procedure, the subfoveal choroidal thicknesses increased significantly (p=0.04). The peak systolic velocities of the posterior ciliary arteries increased significantly after carotid artery stenting (p=0.005). We found a significant negative correlation between the mean increase in peak systolic velocity values after treatment and the mean preprocedural subfoveal choroidal thickness in the study group (p=0.025, r=-0.617). Conclusions: In patients with carotid artery stenosis, the subfoveal choroid is thinner than that in healthy controls. The subfoveal choroidal thickness increases after carotid artery stenting. Carotid artery stenting treatment increases the blood flow to the posterior ciliary artery, and the preprocedural subfoveal choroidal thickness may be a good predictor of the postprocedural peak systolic velocity of the posterior ciliary artery.

RESUMO Objetivos: Avaliar alterações no fluxo sanguíneo ocular e na espessura da coroide subfoveal em pacientes com estenose sintomática da artéria carótida, após implante de stent nessa artéria. Métodos: Foram incluídos 15 homens (idade média de 63,6 ± 9,1 anos) com estenose sintomática da artéria carótida e 18 voluntários saudáveis (todos homens; idade média de 63,7 ± 5,3 anos). Todos os participantes foram submetidos a exames oftalmológicos detalhados, incluindo d medição da espessura da coroide, usando tomografia de coerência óptica com imagem de profundidade aprimorada. Os pacientes também foram submetidos a medidas do fluxo sanguíneo das artérias ciliares posteriores, usando ultrassonografia com Doppler colorido, antes e após o implante do stent na artéria carótida. Resultados: Os pacientes não apresentaram sintomas isquêmicos oculares. O pico de velocidade sistólica e diastólica final aumentou para 10,1 ± 13,1 (p=0,005) e 3,9 ± 6,3 (p=0,064) cm/s, respectivamente, após o procedimento. As espessuras da coroide subfoveais foram significativamente mais finas nos pacientes com estenose da artéria carótida do que nos controles saudáveis (p=0,01). Porém, durante a primeira semana pós-procedimento, as espessuras das coroides subfoveais aumentaram significativamente (p=0,04). O pico de velocidade sistólica das artérias ciliares posteriores aumentou significativamente após o stent na artéria carótida (p=0,005). Encontramos uma correlação negativa significativa entre o aumento médio dos valores máximos de velocidade sistólica após o tratamento e a espessura da coroide subfoveal pré-procedimento média no grupo de estudo (p=0,025, r=-0,617). Conclusões: Em pacientes com estenose da artéria carótida, a coroide subfoveal é mais fina que a dos controles saudáveis. A espessura da coroide subfoveal aumenta após o stent na artéria carótida. O tratamento com stent na artéria carótida aumenta o fluxo sanguíneo para a artéria ciliar posterior, e a espessura coroidal subfoveal pré-procedimento pode ser um bom preditor da velocidade sistólica de pico pós-procedimento da artéria ciliar posterior.

Humans , Male , Middle Aged , Aged , Ophthalmic Artery , Blood Flow Velocity , Carotid Arteries , Choroid , Regional Blood Flow , Stents , Choroid/anatomy & histology , Choroid/diagnostic imaging , Carotid Stenosis/surgery , Carotid Stenosis/diagnostic imaging , Tomography, Optical Coherence