ABSTRACT
Abstract: Objective: To evaluate the impact of diabetic status on outcome of patients undergoing carotid artery stenting (CAS). Background: Diabetes has been demonstrated to be a strong predictor of adverse outcome in patients undergoing coronary revascularization. Its significance in predicting outcome of patients undergoing carotid interventions has not been ascertained. Methods: This research is an observational, retrospective, comparative, descriptive study. Results: 279/341 patients/lesions were evaluated for carotid stenosis undergoing stenting. Non-diabetics versus diabetics were compared. Of the diabetic group, 59.5% were men, mostly hypertensive and with hypercholesterolemia. More than 40% of both groups had a prior percutaneous coronary intervention (PCI), 68.2% were asymptomatic and a half was high risk, greater comorbidity in the diabetic group with an EuroSCORE > 3, 46 vs 21.4% p = 0.000. No statistically significant difference was found in terms of major adverse cardiovascular events (MACE) at 30 days and accumulated six months in the non-diabetic group (non-DM) versus the diabetic (DM): nine patients (5.4%) versus eight (4.8%), p = 0.756 OR, 95% CI 0.857 (0.322-2.27) and 14 (8.3%) versus nine (5.3%), p = 0.249 OR, 95% CI 0.604 (0254-1435), respectively. Diabetic patients treated with carotid stent who underwent cardiovascular surgery showed a higher intrahospitalary mortality (4.6 vs 0.6%, p = 0.02). There was a higher rate of restenosis (1.9 vs 0%, p = 0.077) in non-diabetic patients. An increased incidence of TIA (transient ischemic attack) was observed in diabetic patients (8.7 vs 3.6%, p = 0.05). Conclusion: Diabetics undergoing CAS are more likely to have associated co-morbidities. However despite this handicap, their short term outcome after CAS is similar to that of non diabetics. Endovascular treatment of carotid stenosis may be a good alternative to surgical treatment.(AU)
Resumen: Objetivo: Evaluar el impacto del estado diabético sobre el resultado de los pacientes que se someten a la colocación de stents en la arteria carótida (CAS). Antecedentes: Se ha demostrado que la diabetes es un fuerte predictor de resultados adversos en pacientes sometidos a revascularización coronaria. No se ha determinado su importancia para predecir el resultado de los pacientes que se someten a intervenciones carotídeas. Métodos: Esta investigación es un estudio observacional, retrospectivo, comparativo y descriptivo. Resultados: Se evaluaron 279/341 pacientes/lesiones para la estenosis carotídea sometida a colocación de stents. Se compararon los no diabéticos versus los diabéticos. Del grupo diabético, 59.5% fueron hombres, la mayoría hipertensos y con hipercolesterolemia. Más del 40% de ambos grupos tuvieron una intervención coronaria percutánea (ICP) previa, el 68.2% fueron asintomáticos y la mitad de ellos de alto riesgo, mayor comorbilidad en el grupo diabético con un EuroSCORE > 3, 46 vs 21.4% p = 0.000. No se encontraron diferencias estadísticamente significativas en cuanto a los eventos cardiovasculares adversos mayores (MACE) a los 30 días y acumulados a los seis meses en el grupo no diabético (no DM) versus diabético (DM): nueve pacientes (5.4%) versus ocho (4.8%), p = 0.756 OR; IC 95%: 0.857 (0.322-2.27) y 14 (8.3%) versus nueve (5.3%), p = 0.249 OR; IC 95%: 0.604 (0254-1435), respectivamente. Los pacientes diabéticos tratados con endoprótesis carotídea sometidos a cirugía cardiovascular mostraron una mortalidad intrahospitalaria mayor (4.6 vs 0.6%, p = 0.02). Hubo una mayor tasa de reestenosis (1.9 vs 0%, p = 0.077) en pacientes no diabéticos. Se observó una mayor incidencia de AIT (ataque isquémico transitorio) en pacientes diabéticos (8.7 vs 3.6%, p = 0.05). Conclusión: Los diabéticos que se someten a la CAS son más propensos a tener comorbilidades asociadas. Sin embargo, a pesar de esta desventaja, su resultado a corto plazo después del CAS es similar al de los no diabéticos. El tratamiento endovascular de la estenosis carotídea puede ser una buena alternativa al tratamiento quirúrgico.(AU)
Subject(s)
Humans , Carotid Artery, Internal , Carotid Stenosis/therapy , Angioplasty/instrumentation , Diabetes Mellitus/physiopathology , Epidemiology, Descriptive , Retrospective StudiesABSTRACT
Objective To evaluate the feasibility and safety of simultaneous carotid endarterectomy (CEA) and carotid stenting (CAS) for bilateral carotid stenosis.Methods From Jan 2012 to Aug 2014,8 patients underwent simultaneous CEA and CAS.The surgical plan was based on clinical features and imaging findings.CEA before CAS was done in 5 patients,CAS before CEA was done in 3 patients.One patient also underwent simultaneous coronary artery bypass grafting due to unstable angina.Results Operation success rate was 100％.Intraoperative carotid shunts,patches and embolic protection devices were used in all patients.One patient developed post-procedural hyperperfusion syndrome and returned to normal after symptomatic treatment.The remaining patients recovered uneventfully,there were no cerebrovascular accident,nerve injury or wound complications.Follow-up period was 18-48 months,follow-up rate was 100％.During the follow-up,all patients were relatively stable,no re-stenosis,death or cardiovascular events.Conclusions Through thorough evaluation,careful preparation,and strict management,simultaneous CEA and CAS is a technically feasible and safe treatment strategy for bilateral carotid stenosis.
ABSTRACT
Objective: To describe gender differences in adult patients undergoing carotid angioplasty and its relation to morbidity and mortality at 30 days and 6 months. Material and methods: An observational study from the WHO database comprehending all patients underwent carotid angioplasty in the Department of Hemodynamics Coronary and Peripheral Artery Intervention, Cardiology Hospital 34, IMSS, Monterrey, was conducted in order to ASSESS the differences between genders and their relationship to primary end points within 30 days after the intervention, which were defined as the presence of death related to the procedure, major cerebrovascular event, or myocardial infarction. Results: 279/341 patients/lesions were included for analysis. Within baseline characteristics, women had significantly higher prevalence of type 2 diabetes mellitus (61.4 versus 45.4%, p = 0.006), prior renal angioplasty (21.9 versus 11.5%, p = 0.015), right carotid condition (65.8 versus 53.7%, p = 0.03), prior stroke (20.2 versus 34.4%, p = 0.007) and higher EuroSCORE (3.13 ± 1.72 versus 2.4 ± 1.26, p < 0.001). The masculine gender was only associated with smoking (69.2 versus 35.1%, p < 0.001). In univariate analysis, the female gender was associated with major fatal and non-fatal stroke (4.4 versus 0.9%, p = 0.031). According to symptomatology and subgroups, we found a significant association between women with asymptomatic Increased risk of major cardiovascular events when compared to asymptomatic diseases (9.5 versus 1.4%, p = 0.004). Conclusions: In our center, women who underwent carotid angioplasty present more comorbidities and higher risk in comparison with the male gender. However, these differences do not impact on most adverse cardiovascular events (MACVE) at 30 days. In the subgroup of asymptomatic patients, the risk of major cardiovascular events is significantly higher in the female gender.
Objetivo: Describir las diferencias de género en pacientes adultos sometidos a angioplastia carotídea y su relación con la morbimortalidad a 30 días y seis meses. Material y métodos: Estudio observacional de la base de datos que comprende los casos sometidos a angioplastia carotídea en el Departamento de Hemodinámica e Intervención Coronaria Periférica del Hospital de Cardiología No. 34, IMSS, Monterrey. Se analizaron las diferencias entre géneros y su relación con los puntos finales primarios dentro de los 30 días posteriores a la intervención, los cuales fueron definidos como la presencia de muerte relacionada con procedimiento, evento vascular cerebral o infarto agudo de miocardio. Resultados: Se incluyeron 279/341 pacientes/lesiones. Dentro de las características basales se encontró que las mujeres presentaban una mayor prevalencia de diabetes mellitus tipo 2 (61.4 versus 45.4%, p = 0.006), angioplastia renal previa (21.9 versus 11.5%, p = 0.015), afección de carótida derecha (65.8 versus 53.7%, p = 0.03), evento vascular cerebral (EVC) previo (34.4 versus 20.2%, p = 0.007) y EuroSCORE más alto (3.13 ± 1.72 versus 2.4 ± 1.26, p < 0.001). El género masculino sólo se asoció con mayor tabaquismo (69.2 versus 35.1%, p < 0.001). En el análisis univariado, el género femenino se asoció significativamente con EVC (fatal y no fatal) (4.4 versus 0.9%, p = 0.031). Al dividir en subgrupos de acuerdo con la sintomatología, se encontró una fuerte asociación entre las mujeres asintomáticas con más elevado riesgo de eventos cardiovasculares mayores en comparación con el grupo masculino asintomático (9.5 versus 1.4%, p = 0.004). Conclusiones: En nuestro centro, las mujeres sometidas a angioplastia carotídea presentan más comorbilidades y se encuentran en un riesgo mayor en comparación con el género masculino. Sin embargo, estas diferencias no impactan en la incidencia de eventos adversos cardiovasculares mayores (EACVM) a 30 días. En el subgrupo de pacientes asintomáticos el riesgo de eventos cardiovasculares mayores es significativamente más alto en el género femenino.
ABSTRACT
Objective To analyze the clinical features of hyperperfusion syndrome occurring after carotid artery stenting, and to discuss its nursing measures. Methods Among 220 patients who received carotid artery stenting, nine developed hyperperfusion syndrome after stent implantation. Their clinical materials were retrospectively analyzed. The nursing measures, including properly controlling blood pressure, relieving brain edema, monitoring cerebral blood flow, medication with sedation drug, stopping or reducing antiplatelet therapy, close observation of blood pressure and clinical symptoms, cooperation with physicians to control the blood pressure and to dynamically make reexamination, etc. Results Of the nine patients with hyperperfusion syndrome, complete recovery was achieved in eight at the time of discharge and death due to intracranial hemorrhage occurred in one. Conclusion The key point of nursing for patients with hyperperfusion syndrome is close cooperation with physicians to control the patient ’s blood pressure so as to ensure a proper cerebral blood flow.
ABSTRACT
The authors present a case in which macro-embolus from the ruptured atheromatous plaque developed during carotid artery stenting (CAS). A 63-year-old man who had suffered a left middle cerebral artery territory infarction had significant proximal left internal carotid artery stenosis required CAS procedure. Immediate after stent deployment, the patient showed abrupt neurological deterioration with 12 x 3 mm sized macro-embolus which was caught by the embolus protection device (EPD). Retrieval of the macro-embolus was performed safely and the patient recovered to pre-procedure status. Macro-embolus can be resulted during the CAS. The EPD can capture the macro-embolus and safe removal is technically feasible.
Subject(s)
Humans , Angioplasty , Carotid Arteries , Carotid Stenosis , Embolic Protection Devices , Embolism , Infarction , Middle Cerebral Artery , StentsABSTRACT
OBJECTIVES: A duplex ultrasound study was performed to investigate morphological and hemodynamic patterns of carotid stenoses treated by endarterectomy with patch closure versus stenting. MATERIALS AND METHOD: Twenty-nine carotid stenoses were treated with stenting and 65 with patch closure. Duplex ultrasound parameters (luminal diameter, mm; peak systolic velocity and end-diastolic velocity, cm/s) were measured 24 hours after the procedures and also at 12 months post-procedure. Residual stenoses (immediately postprocedure) and restenoses (within 12 months of procedure) were defined as narrowings of >50 percent on duplex ultrasound examination. RESULTS: In stented patients, the luminal diameter of the proximal internal carotid artery increased in the interval between the 24-hour and 12-month post-procedure studies, while in the patch closure patients, the diameter decreased. Carotid hemodynamics normalized immediately after both patching and stenting and remained relatively stable thereafter up to 12 months. No statistically elevated flow velocities (in the absence of residual stenosis or restenosis) were observed in the patched or stented carotid arteries. No significant differences in residual stenosis rates were observed between the stenting group (3 cases, 10.34 percent) and the patch closure group (1 case, 1.53 percent, P = 0.08). At 12 months, 2 stenting patients (6.88 percent) and 2 patch closure patients (3.07 percent) had $50 percent restenosis (P = 0.58). One case of late stroke due to restenosis was observed in the stenting group; the patient died 12 months postoperatively, before receiving new intervention. CONCLUSION: Measurements over time in luminal diameter signalized differences in arterial remodeling mechanisms between patched and stented carotids. Both stenting and patch closure were associated with carotid patency and flow restoration. This study does not support a general approach to new velocity criteria indiscriminately applied to stented or patched carotids.
Subject(s)
Adult , Aged , Aged, 80 and over , Female , Humans , Male , Middle Aged , Carotid Artery, Internal , Carotid Stenosis , Endarterectomy, Carotid/methods , Hemodynamics/physiology , Blood Vessel Prosthesis , Chi-Square Distribution , Carotid Artery, Internal/physiopathology , Carotid Artery, Internal/surgery , Carotid Stenosis/physiopathology , Carotid Stenosis/surgery , Stents , Treatment Outcome , Ultrasonography, Doppler, DuplexABSTRACT
We describe two cases of branch retinal artery occlusion (BRAO) after carotid artery (CA) stenting. Case 1: A 57-year-old man diagnosed with left neovascular glaucoma was admitted to our department for trabeculectomy (He had complained of decreased visual acuity (VA) in the left eye for a month). A preoperative neck angio CT scan showed bilateral CA stenosis. After CA stenting, he contracted visual defects on the right superior area of his right eye. Upon examination, VA with correction was found to be 1.0 (OD), but right fundoscopy revealed ischemic retina whitening along the inferior temporal arcade. Case 2: A 64-year-old man received left CA stenting for severe stenosis in the Department of Neurology. The next day, he was referred to us for acute onset of a left naso-inferior visual field defect. Upon initial examination, his VA with correction was 0.8/0.16 (OD/OS) and fundoscopy revealed ischemic retina whitening at the superior posterior pole in the left eye. It was not necessary to treat the BRAO in these cases because the foveal capillary network was not invaded at 2 month follow ups, VA was preserved in both cases. In conclusion, ophthalmic evaluation is important after CA stenting because of a possible embolic occlusion of the retinal artery.
Subject(s)
Humans , Male , Middle Aged , Angiography , Carotid Stenosis/diagnostic imaging , Fibrinolytic Agents/therapeutic use , Fluorescein Angiography , Follow-Up Studies , Fundus Oculi , Retinal Artery Occlusion/diagnosis , Stents/adverse effects , Visual Acuity , Visual FieldsABSTRACT
Carotid angioplasty with stenting (CAS) under the distal embolic protection provides the effective and safe non-surgical treatment of significant carotid bulb stenosis with lower complication rates than carotid endarterectomy (CEA), especially for high surgical risk groups, in the prevention and management of ischemic stroke. Nowadays many clinical fields, such as radiologist, neurologist, neurosurgeon, cardiologist, and vascular surgeon, perform the CAS procedure with independent or multidisciplinary approach. Thus we need uniform reporting system and guidlinelines for the effective management and randomized clinical trials of the extracranial carotid stenosis. In this report, we (practice guideline taskforce team in the korean society of interventional neuroradiology) review the recent published guidelines and reporting systems for CAS and propose diagnostic, therapeutic, and follow-up guidelines and standards for the CAS practices in the Korea.
Subject(s)
Angioplasty , Carotid Stenosis , Constriction, Pathologic , Endarterectomy, Carotid , Follow-Up Studies , Korea , Stents , StrokeABSTRACT
Carotid balloon angioplasty and stenting has been suggested to be a safer and more cost-effective alternative to carotid endarterectomy for the management of carotid artery stenosis, especially in high risk patients or poor candidates for standard carotid endarterectomy. We conducted anesthetic management in patients receiving carotid balloon angioplasty and stenting. General anesthesia was performed in 2 cases and anesthesia care was monitored in 5 cases to ensure hemodynamic stability. No severe complications such as major stroke occurred during the procedures. One case with monitored anesthesia care showed a rapid decrease in arterial pressure and transient bradycardia during balloon inflation, but these immediately resolved.
Subject(s)
Humans , Anesthesia , Anesthesia, General , Angioplasty, Balloon , Arterial Pressure , Bradycardia , Carotid Stenosis , Endarterectomy, Carotid , Hemodynamics , Inflation, Economic , Stents , StrokeABSTRACT
Carotid artery stenting (CAS) for treating carotid artery stenosis is a recent developed technique which is less invasive and complications. This paper reviewed the progress, procedure, and complications of carotid artery stenting.
ABSTRACT
BACKGROUND: Surgical endarterectmy has been known to be the stendard treatment modality in management of carotid stenosis. However, endarterectomy has several limitations in high-risk patients, particulary with coronary artery disease. Percutaneous angioplasty and stenting have the patential to be less traumatic and safer, they may overcome the limitations of surgery. Early results of carotid stenting and it's safety and feasibility were analysed. METHODS: Twenty two carotid arteries from 16 patients with significant stenosis (% diameter stenosis> or = 60%) in both symptomatic and asymptomatic patients were stented. Of the 14 patients (19 arteries) with atherosclerosis, ten patient represented which a high-risk subset with old myocardial infarction, previous coronary artery bypass graft, previous ipsilateral carotid endarterectomy, and coronary artery stenosis, and Takayasu's arteritis in 2 patients (3 arteries) Target vessels were in internal carotid arteries in 17, external in 1, and common carotid in 4. Among the 22 stents, vascular Wallstents (Schneider Co Ltd) were inserted in 19, biliary Palmaz stents (Jonhson and Johnson) in 2, and coronary Microstent II (AVE) stent in 1. RESULTS: 1) Angiographic and procedural success rates were 100%, and there were no acute or subacute stent thrombosis. 2) Immediately after initial stenting mean percent diameter reduced from 72+/-11% to 7+/-16%, and minimal luminal diameter was increased from 1.6+/-1.1mm to 4.8+/-1.8mm corresponding to an acute gain of 3.3mm. 3) Simularneous bilateral carotid stengings in 5 patients and combined stentings for coroanary and carotid arteries in 5 patients were performd. Carotid stentings were performed in 3 patients with total obstruction of contralateral carotid arteries. 4) There were no major strokes or myocardial infarctions during the procedures. There were 4 patients with contralateral total obstructions or bilateral stenosis of carotid arteries who had generalized seizures during balloon inflation; they were immediately resolved without sequele. One patient who underwent carotid endarterectomy died 3 days after stenting from intracranial hemorrhage due to uncontrolled hypertension. CONCLUSIONS: Percutaneous carotid angioplasty with stenting is a safe and feasible procedure. It is associated with high immediate success rates and relatively low complications in the management of carotid artery stenosis. This interventional measure is especially recommended in combined high risk patients such as coronary artery disease and other comorbid diseases. Larger population study and follow-up data are warranted.