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Kremer C, Lorenzano S, Bejot Y, Lal A, Epple C, Gdovinova Z, Mono ML, Karapanayiotides T, Jovanovic D, Dawson J, Caso V. Sex differences in outcome after carotid revascularization in symptomatic and asymptomatic carotid artery stenosis. J Vasc Surg 2023; 78:817-827.e10. [PMID: 37055001 DOI: 10.1016/j.jvs.2023.03.502] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/22/2022] [Revised: 03/11/2023] [Accepted: 03/19/2023] [Indexed: 04/15/2023]
Abstract
OBJECTIVE Sex differences regarding the safety and efficacy of carotid revascularization in carotid artery stenosis have been addressed in several studies with conflicting results. Moreover, women are underrepresented in clinical trials, leading to limited conclusions regarding the safety and efficacy of acute stroke treatments. METHODS A systematic review and meta-analysis was performed by literature search including four databases from January 1985 to December 2021. Sex differences in the efficacy and safety of revascularization procedures, including carotid endarterectomy (CEA) and carotid artery stenting (CAS), for symptomatic and asymptomatic carotid artery stenoses were analyzed. RESULTS Regarding CEA in symptomatic carotid artery stenosis, the stroke risk in men (3.6%) and women (3.9%) based on 99,495 patients (30 studies) did not differ (P = .16). There was also no difference in the stroke risk by different time frames up to 10 years. Compared with men, women treated with CEA had a significantly higher stroke or death rate at 4 months (2 studies, 2565 patients; 7.2% vs 5.0%; odds ratio [OR], 1.49; 95% confidence interval [CI], 1.04-2.12; I2 = 0%; P = .03), and a significantly higher rate of restenosis (1 study, 615; 17.2% vs 6.7%; OR, 2.81; 95% CI, 1.66-4.75; P = .0001). For CAS in symptomatic artery stenosis, data showed a non-significant tendency toward higher peri-procedural stroke in women, whereas for asymptomatic carotid artery stenosis, data based on 332,344 patients showed that women (compared with men) after CEA had similar rates of stroke, stroke or death, and the composite outcome stroke/death/myocardial infarction. The rate of restenosis at 1 year was significantly higher in women compared with men (1 study, 372 patients; 10.8% vs 3.2%; OR, 3.71; 95% CI, 1.49-9.2; P = .005). Furthermore, CAS in asymptomatic patients was associated with low risk of a postprocedural stroke in both sexes, but a significantly higher risk of in-hospital myocardial infarction in women than men (8445 patients, 1.2% vs 0.6%; OR, 2.01; 95% CI, 1.23-3.28; I2 = 0%; P = .005). CONCLUSIONS A few sex-differences in short-term outcomes after carotid revascularization for symptomatic and asymptomatic carotid artery stenosis were found, although there were no significant differences in the overall stroke. This indicates a need for larger multicenter prospective studies to evaluate these sex-specific differences. More women, including those aged over 80 years, need to be enrolled in randomized controlled trials, to better understand if sex differences exist and to tailor carotid revascularization accordingly.
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Affiliation(s)
- Christine Kremer
- Neurology Department, Skåne University Hospital, Department Clinical Sciences Lund University, Malmö, Sweden.
| | - Svetlana Lorenzano
- Department of Human Neurosciences, Sapienza University of Rome, Rome, Italy
| | - Yannick Bejot
- Dijon Stroke Registry, EA7460, Pathophysiology and Epidemiology of Cerebro-Cardiovascular diseases (PEC2), University Hospital of Dijon, University of Burgundy, UBFC, Dijon, France
| | - Avtar Lal
- European Stroke Organisation (ESO), Basel, Switzerland
| | - Corina Epple
- Neurology Department, Klinikum Hanau, Hanau, Germany
| | - Zuzana Gdovinova
- Neurology Department, Faculty of Medicine P.J. Safarik University Košice, Košice, Slovakia
| | - Marie-Luise Mono
- Department of Neurology, Municipal Hospital Waid und Triemli, Zürich, Switzerland; University Hospital and University of Bern, Bern, Switzerland
| | - Theodore Karapanayiotides
- Second Department of Neurology, School of Medicine, Faculty of Health Sciences, Aristotle University of Thessaloniki, Thessaloniki, Greece
| | - Dejana Jovanovic
- Department of Emergency Neurology, Neurology Clinic, Clinical Center of Serbia, Medical Faculty, University of Belgrade, Belgrade, Serbia
| | - Jesse Dawson
- Institute of Cardiovascular and Medical Sciences, College of Medical, Veterinary, and Life Sciences, University of Glasgow, Glasgow, Scotland
| | - Valeria Caso
- Stroke Unit, Santa Maria della Misericordia Hospital, University of Perugia, Perugia, Italy
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Nejim B, Alshwaily W, Dakour-Aridi H, Locham S, Goodney P, Malas MB. Age modifies the efficacy and safety of carotid artery revascularization procedures. J Vasc Surg 2019; 69:1490-1503.e3. [DOI: 10.1016/j.jvs.2018.07.062] [Citation(s) in RCA: 16] [Impact Index Per Article: 3.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/01/2018] [Accepted: 07/22/2018] [Indexed: 10/27/2022]
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Abstract
In this study the operative and postoperative results in 84 patients older than seventy-five years who underwent 106 surgical interventions of the carotid system are compared with those of 320 patients aged less than seventy-five who underwent 413 similar procedures. The authors encountered 2 (2.4%) permanent and 1 (1.2%) transient central nervous system ischemic events in patients older than seventy-five, whereas in younger patients there were 4 (1.3%) permanent and 5 (1.6%) transient events. In addition there were 2 deaths (2.4%) in the older group and 5 (1.6%) in the younger group. These differences are not statistically significant and suggest that age alone should not be a contraindica tion to surgical interventions of the carotid system.
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Affiliation(s)
| | - Dusan Dragojevic
- Vascular and Thoracic Surgical Clinic of the Municipal "Heidehaus" Hospital, Hannover, Germany
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Luebke T, Brunkwall J. Meta- analysis and meta-regression analysis of the associations between sex and the operative outcomes of carotid endarterectomy. BMC Cardiovasc Disord 2015; 15:32. [PMID: 25956903 PMCID: PMC4432947 DOI: 10.1186/s12872-015-0029-x] [Citation(s) in RCA: 18] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/16/2015] [Accepted: 04/21/2015] [Indexed: 12/26/2022] Open
Abstract
Background Subgroup analyses from randomized controlled trials (RCT) of carotid endarterectomy (CEA) for both symptomatic and asymptomatic carotid stenosis suggest less benefit in women compared to men, due partly to higher age-independent peri-operative risk. However, a meta-analysis of case series and databases focussing on CEA-related gender differences has never been investigated. Methods A systematic review of all available publications (including case series, databases and RCTs) reporting data on the association between sex and procedural risk of stroke and/or death following CEA from 1980 to 2015 was investigated. Pooled Peto odds ratios of the procedural risk of stroke and/or death were obtained by Mantel-Haenszel random-effects meta-analysis. The I2 statistic was used as a measure of heterogeneity. Potential publication bias was assessed with the Egger test and represented graphically with Begg funnel plots of the natural log of the OR versus its standard error. Additional sensitivity analyses were undertaken to evaluate the potential effect of key assumptions and study-level factors on the overall results. Meta-regression models were formed to explore potential heterogeneity as a result of potential risk factors or confounders on outcomes. A tria sequential analysis (TSA) was performed with the aim to maintain an over- all 5 % risk of type I error, being the standard in most meta- analyses and systematic reviews. Results 58 articles reported combined stroke and mortality rates within 30 days of treatment. In the unselected overall meta-analysis, the incidence of stroke and death in the male and female groups differed significantly (Peto OR, 1,162; 95 % CI, 1.067-1.266; P = .001), revealing a worse outcome for female patients. Moderate heterogeneity among the studies was identified (I2 = 36 %), and the possibility of publication bias was low (P = .03). In sensitivity analyses the meta-analysis of case series with gender aspects as a secondary outcome showed a significantly increased risk for 30-day stroke and death in women compared to men (Peto OR, 1.390; 95 % CI, 1.148-1.684; P = .001), In contrast, meta-analysis of databases (Peto OR, 1.025; 95 % CI, 0.958-1.097; P = .474) and case series with gender related outcomes as a primary aim (Peto OR, 1.202; 95 % CI, 0.925-1.561; P = .168) demonstrated no increase in operative risk of stroke and death in women compared to men. Conclusions Metanalyses of case series and databases dealing with CEA reveal inconsistent results regarding gender differences related to CEA-procedure and should not be transferred into clinical practice.
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Affiliation(s)
- Thomas Luebke
- Department of Vascular and Endovascular Surgery, University Hospital of Cologne, Kerpener Str. 62, 50937, Cologne, Germay.
| | - Jan Brunkwall
- Department of Vascular and Endovascular Surgery, University Hospital of Cologne, Kerpener Str. 62, 50937, Cologne, Germay.
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Patel ST, Patil SV, Chamberlain RS. A United States Population-Based Study on Clinical Outcomes Following Primary Carotid Endarterectomy: Who and When? ACTA ACUST UNITED AC 2012. [DOI: 10.4236/ss.2012.312117] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/20/2022]
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Bremner AK, Katz SG. Are Octogenarians at High Risk for Carotid Endarterectomy? J Am Coll Surg 2008; 207:549-53. [DOI: 10.1016/j.jamcollsurg.2008.05.002] [Citation(s) in RCA: 11] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/10/2008] [Revised: 05/05/2008] [Accepted: 05/06/2008] [Indexed: 11/25/2022]
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Bond R, Rerkasem K, Cuffe R, Rothwell PM. A Systematic Review of the Associations between Age and Sex and the Operative Risks of Carotid Endarterectomy. Cerebrovasc Dis 2005; 20:69-77. [PMID: 15976498 DOI: 10.1159/000086509] [Citation(s) in RCA: 116] [Impact Index Per Article: 6.1] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/24/2005] [Accepted: 04/08/2005] [Indexed: 11/19/2022] Open
Abstract
BACKGROUND Randomized trials of carotid endarterectomy (CEA) for both symptomatic and asymptomatic carotid stenosis have demonstrated that benefit is decreased in women, due partly to a high operative risk, which is independent of age. However, it is uncertain whether these trial-based observations are generalisable to routine clinical practice. METHODS We performed a systematic review of all publications reporting data on the association between age and/or sex and procedural risk of stroke and/or death following CEA from 1980 to 2004. RESULTS 62 eligible papers reported relevant data. Females had a higher rate of operative stroke and death (25 studies, OR = 1.31, 95% CI = 1.17-1.47, p < 0.001) than males, but no increase in operative mortality (15 studies, OR = 1.05, 95% CI = 0.81-0.86, p = 0.78). Compared with younger patients, operative mortality was increased at > or =75 years (20 studies, OR = 1.36, 95% CI = 1.07-1.68, p = 0.02), at age > or =80 years (15 studies, OR = 1.80, 95% CI = 1.26-2.45, p < 0.001) and in older patients overall (35 studies, OR = 1.50, 95% CI = 1.26-1.78, p < 0.001). In contrast, risk of non-fatal stroke did not increase with age and so the combined perioperative risk was only slightly increased at age > or =75 years (21 studies, OR = 1.18, 95% CI = 0.94-1.44, p = 0.06), at age > or =80 years (10 studies, OR = 1.14, 95% CI = 0.92-1.36, p = 0.34) and in older patients overall (36 studies, OR = 1.17, 95% CI = 1.04-1.31, p = 0.01). CONCLUSIONS The effects of age and sex on the operative risk of CEA in published case series are consistent with those observed in the trials. Operative risk of stroke is increased in women and operative mortality is increased in patients aged > or =75 years.
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Affiliation(s)
- R Bond
- Stroke Prevention Research Unit, University Department of Clinical Neurology, Radcliffe Infirmary, Oxford, UK
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Maxwell JG, Taylor AJ, Maxwell BG, Brinker CC, Covington DL, Tinsley E. Carotid endarterectomy in the community hospital in patients age 80 and older. Ann Surg 2000; 231:781-8. [PMID: 10816620 PMCID: PMC1421066 DOI: 10.1097/00000658-200006000-00001] [Citation(s) in RCA: 43] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/23/2023]
Abstract
OBJECTIVE To determine whether the rates of death and complications of carotid endarterectomy (CE) were different in the octogenarian population than in patients younger than age 80. SUMMARY BACKGROUND DATA The utility of CE depends on the ability of the surgeon and hospital to attain low rates of death and complications, including all subgroups of the patient population. In the past 30 years, the number of people age 85 and older has increased 274%. METHODS Detailed chart review was carried out on all CE procedures done from 1979 through 1998. Descriptive demographic data, risk factors, surgical details, length of stay, deaths, and complications were recorded. RESULTS A total of 2,398 CEs were performed in 1,970 patients; 2,180 procedures were performed in 1,783 patients younger than 80, and 218 CEs were performed in 187 patients age 80 and older. Sixty-five percent of the octogenarians and 67% of patients younger than age 80 had neurologic symptoms. Among asymptomatic patients, 89% had stenosis of 75% or more. There were 62 strokes in the 2,180 procedures in the younger group, for a stroke rate of 2.8%, and 7 strokes in the 218 procedures in the older group, for a stroke rate of 3.2%. The death rates were 0.9% for the octogenarians and 1.4% for the younger group. CONCLUSIONS Carotid endarterectomy can be safely performed in a community hospital in patients age 80 and older. Outcomes in octogenarians were not significantly different than those of younger patients and were within the range required for CE to be considered beneficial in the prevention of stroke.
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Affiliation(s)
- J G Maxwell
- Departments of Surgery, University of North Carolina at Chapel Hill New Hanover Regional Medical Center, Wilmington, North Carolina, USA
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Maxwell JG, Rutledge R, Covington DL, Churchill MP, Clancy TV. A statewide, hospital-based analysis of frequency and outcomes in carotid endarterectomy. Am J Surg 1997; 174:655-60; discussion 660-1. [PMID: 9409592 DOI: 10.1016/s0002-9610(97)00202-x] [Citation(s) in RCA: 21] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/05/2023]
Abstract
BACKGROUND For more than 40 years carotid endarterectomy (CE) has been used in the treatment of extracranial carotid disease for the prevention of stroke. Recent prospective clinical trials have confirmed the benefit of CE for both symptomatic and asymptomatic patients. Our purpose was to examine statewide trends in the numbers of CE over a 6-year time period and to evaluate outcomes. METHODS Using data from the North Carolina Medical Database Commission (NCMDC) all CE procedures from 1988 to 1993 were identified. Numbers of CE were compared with the population and hospital admissions. Variables of length of stay, hospital charges, discharge disposition, and occurrence of stroke and death were analyzed. RESULTS A total of 11,973 CE were performed in 6 years. Compared by admissions, population, and the proportion of elderly, the number of CE increased yearly. The stroke rate was 1.7% and the death rate 1.2% for an overall in-hospital stroke plus mortality rate of only 2.7%. CONCLUSIONS From a diverse group of hospitals and a large number of surgeons and patients, this hospital-based study documents the acceptance and safety of CE in the treatment of extracranial carotid disease.
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Affiliation(s)
- J G Maxwell
- Department of Surgery, University of North Carolina, Chapel Hill, USA
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Nunnelee JD, Kurgan A, Auer AI. Carotid endarterectomy in elderly vascular patients: experience in a community hospital. Geriatr Nurs 1995; 16:121-3. [PMID: 7782004 DOI: 10.1016/s0197-4572(05)80042-4] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/27/2023]
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Abstract
Risk factors for stroke and for carotid stenosis in the Japanese population are reviewed and the variations between rates of carotid endarterectomy in different populations discussed. The evolution of carotid plaques and the involvement of intraplaque hemorrhage in embolism and hemodynamic inadequacy in causing focal cerebral ischemic events are described. The indications for operation are presented together with an assessment of fitness for operation, with particular emphasis on the influence of heart disease on perioperative morbidity and late survival. Combined carotid and coronary reconstruction is carried out when severe disease of both systems is present (138 patients). The technique of carotid endarterectomy involves minimal dissection posterior to the common and internal carotid arteries to avoid vagal nerve injury. The pathology and symptoms of disease of the proximal great vessel together with techniques for revascularization are also presented.
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Affiliation(s)
- R S Lord
- University of New South Wales St. Vincent's Hospital, Darlinghurst, Sydney, Australia
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Treiman RL, Wagner WH, Foran RF, Cossman DV, Levin PM, Cohen JL, Treiman GS. Carotid endarterectomy in the elderly. Ann Vasc Surg 1992; 6:321-4. [PMID: 1390018 DOI: 10.1007/bf02008787] [Citation(s) in RCA: 44] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/26/2022]
Abstract
The records of 146 patients 80 years of age or older who underwent 183 carotid endarterectomy operations from 1964 through 1990 were reviewed to determine surgical risk. The indications for operation were asymptomatic patients with carotid stenosis (n = 36); ipsilateral transient ischemic attacks (n = 46); ipsilateral stroke (n = 28); ipsilateral retinal embolus (n = 15); nonlateralizing symptoms (n = 40); and asymptomatic side in patients with contralateral symptoms (n = 18). Postoperatively, three patients (1.6% of operations) had a stroke with a residual deficit and three (1.6%) died. All deaths were from myocardial infarction. For comparison, during the same time period, the combined stroke with residual deficit and death rate for patients less than 80 operated upon for similar indications was 3.5%. Since 80-year-old patients have a life expectancy of at least five years, the authors conclude that elderly patients should be evaluated for carotid endarterectomy using criteria similar to that used for younger patients.
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Affiliation(s)
- R L Treiman
- Department of Surgery, Cedars-Sinai Medical Center, Los Angeles, California
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