scholarly journals Incidence and Risk Factors for Bilateral Nephrolithiasis: A Large Case-retrospective Study

2021 ◽  
Author(s):  
Xiong Yang ◽  
Zhi Li ◽  
Shiyong Qi ◽  
Linguo Xie ◽  
Qiduo Shi ◽  
...  
Keyword(s):  
Diabetes Mellitus ◽  
Risk Factors ◽  
Multivariate Analysis ◽  
Kidney Stones ◽  
Statistical Significance ◽  
Univariate Analysis ◽  
Renal Stones ◽  
Urinary Stones ◽  
Preoperative Imaging ◽  
History Of

Abstract To determine the incidence and risk factors of bilateral kidney stones. Utilized the retrospective analysis method on demographic characteristics and clinical data of patients with renal stones in the Second Hospital of Tianjin Medical University. Grouped patients into unilateral and bilateral renal stones according to preoperative imaging and ultrasound examination. Univariate and multivariate analysis methods were used to evaluate the factors that may cause bilateral stones. The study included 7587 patients with kidney stones in total, of whom 4983 had unilateral kidney stones (including 2719 left stones and 2264 right stones), and 2604 had bilateral kidney stones (34.3%). By comparing the unilateral stones group with the bilateral stones group, the univariate analysis demonstrated that weight, body mass index (BMI), history of nephrolithiasis, diabetes mellitus (DM), hypertension, gout, and the maximal stone diameter had statistical significance. Binary logistic regression multivariate analysis demonstrated that BMI, history of nephrolithiasis, diabetes mellitus, hypertension, gout, and the maximal stone diameter were independent risk factors for bilateral urinary stones. This study shows that 34.3% of patients with kidney stones were diagnosed as having bilateral kidney stones; BMI and the maximal stone diameter are positively correlated with the incidence of bilateral kidney stones; Patients with a history of nephrolithiasis, diabetes, hypertension, and gout have a significantly higher risk of having bilateral kidney stones.

scholarly journals Risk Factor Analysis for Infection after Medial Open Wedge High Tibial Osteotomy

2021 ◽  
Vol 10 (8) ◽  
pp. 1727
Author(s):  
Ta-Wei Liu ◽  
Chih-Hao Chiu ◽  
Alvin Chao-Yu Chen ◽  
Shih-Sheng Chang ◽  
Yi-Sheng Chan
Keyword(s):  
Diabetes Mellitus ◽  
Risk Factors ◽  
Multivariate Analysis ◽  
High Tibial Osteotomy ◽  
Univariate Analysis ◽  
Arthroscopic Surgery ◽  
Underlying Disease ◽  
Tibial Osteotomy ◽  
Open Wedge ◽  
Wedge High Tibial Osteotomy

Background: Medial open wedge high tibial osteotomy (MOWHTO) is a well-established treatment for osteoarthritis of the medial tibiofemoral compartment. Surgical site infection (SSI) after MOWHTO is a devastating complication that may require further surgery. In this study, we aimed to identify the risk factors for infection after MOWHTO over 1 to 4 years of follow-up. Methods: Fifty-nine patients who underwent MOWHTO combined with knee arthroscopic surgery were included in this prospective study. Artificial bone grafts were used in all cases. Possible risk factors, including sex, age, body mass index (BMI), underlying disease, hospitalization length, correction angle, and surgery time, were recorded. Both univariate and multivariate analysis were used. Results: A total of 59 patients who underwent 61 operations were included. Eleven patients (18.0%) were reported to have SSI. Univariate analysis showed that smoking and diabetes mellitus were positively associated with SSI. Multivariate analysis showed that smoking and age were positively associated with SSI. Three patients (4.9%) were reported to suffer from deep SSI, requiring surgical debridement, all of whom were male smokers. Conclusion: Smoking, diabetes mellitus, and old age were identified to be possible risk factors of SSI after MOWHTO. These findings are common risk factors of SSI after orthopedic surgery according to the literature. Patient selection should be performed cautiously, and postoperative prognosis for MOWHTO should be carefully explained to patients who smoke.

Safety of pediatric cerebral angiography

2021 ◽  
pp. 1-8
Author(s):  
David C. Lauzier ◽  
Joshua W. Osbun ◽  
Arindam R. Chatterjee ◽  
Christopher J. Moran ◽  
Akash P. Kansagra
Keyword(s):  
Risk Factors ◽  
Ischemic Stroke ◽  
Cerebral Angiography ◽  
Statistical Significance ◽  
Univariate Analysis ◽  
Information Criterion ◽  
Fisher Exact Test ◽  
Femoral Access ◽  
Increased Risk ◽  
History Of

OBJECTIVE Catheter-based cerebral angiography is commonly used for neurovascular diagnosis in children. In this work, the authors aimed to quantify the complication rate of cerebral angiography in children, characterize these complications, and identify risk factors for complications. METHODS Relevant clinical data were retrospectively obtained for 587 consecutive cerebral angiography procedures performed in 390 children from March 2002 to March 2020. Complications were categorized as neurological or nonneurological, and severity was graded using a standard schema. Incidences of complications were reported as point estimates. Associations between risk factors and complications were characterized in univariate analysis using the two-tailed Fisher exact test and in multivariate analysis using multiple logistic regression with bidirectional elimination based on the Akaike information criterion. In both univariate and multivariate analyses, statistical significance was corrected for multiple comparisons using the Benjamini-Hochberg method. RESULTS Complications occurred in 6.5% of procedures, including neurological complications in 1.9% and nonneurological complications in 4.8%. Permanent deficits occurred in only 0.2% of cases. Overall, 0.5% of procedures resulted in major complications, while 6.0% resulted in minor complications. Female sex and a history of hypertension or ischemic stroke were associated with an increased risk of complications, while femoral artery access was associated with a decreased risk of complications. CONCLUSIONS Pediatric cerebral angiography was shown to have a low rate of major or permanent complications. Children who were female and those with a history of hypertension or ischemic stroke were shown to be at higher risk of complications, while the use of femoral access carried a lower risk of complications.

Hypomagnesuria is Associated With Nephrolithiasis in Patients With Asymptomatic Primary Hyperparathyroidism

2020 ◽  
Vol 105 (8) ◽  
pp. e2789-e2795
Author(s):  
Federica Saponaro ◽  
Claudio Marcocci ◽  
Matteo Apicella ◽  
Laura Mazoni ◽  
Simona Borsari ◽  
...  
Keyword(s):  
Risk Factors ◽  
Multivariate Analysis ◽  
Primary Hyperparathyroidism ◽  
Kidney Stones ◽  
Univariate Analysis ◽  
Urine Volume ◽  
Urinary Stone ◽  
Urinary Calcium ◽  
Categorical Variables ◽  
Urinary Parameters

Abstract Context The pathogenesis of nephrolithiasis in primary hyperparathyroidism (PHPT) remains to be elucidated. The latest guidelines suggest parathyroidectomy in patients with asymptomatic PHPT with hypercalciuria (> 400 mg/d) and increased stone risk profile. Objective The objective of this work is to evaluate the association of urinary stone risk factors and nephrolithiasis in patients with asymptomatic sporadic PHPT and its clinical relevance. Design A total of 157 consecutive patients with sporadic asymptomatic PHPT were evaluated by measurement of serum and 24-hour urinary parameters and kidney ultrasound. Results Urinary parameters were tested in the univariate analysis as continuous and categorical variables. Only hypercalciuria and hypomagnesuria were significantly associated with nephrolithiasis in the univariate and multivariate analysis adjusted for age, sex, body mass index, estimated glomerular filtration rate, parathyroid hormone, 25-hydroxyvitamin D, serum calcium, and urine volume (odds ratio, OR 2.14 [1.10-4.56]; P = .04; OR 3.06 [1.26-7.43]; P = .013, respectively). Hypomagnesuria remained associated with nephrolithiasis in the multivariate analysis (OR 6.09 [1.57-23.5], P = .009) even when the analysis was limited to patients without concomitant hypercalciuria. The urinary calcium/magnesium (Ca/Mg) ratio was also associated with nephrolithiasis (univariate OR 1.62 [1.27-2.08]; P = .001 and multivariate analysis OR 1.74 [1.25-2.42], P = .001). Hypomagnesuria and urinary Ca/Mg ratio had a better, but rather low, positive predictive value compared with hypercalciuria. Conclusions Hypomagnesuria and urinary Ca/Mg ratio are each associated with silent nephrolithiasis and have potential clinical utility as risk factors, besides hypercalciuria, for kidney stones in asymptomatic PHPT patients. The other urinary indices that have been commonly thought to be associated with kidney stones in PHPT are not supported by our results.

Conjunctival melanoma: Risk factors for recurrent or new tumor in 540 patients at a single ocular oncology center

2020 ◽  
pp. 112067212097039
Author(s):  
Sarangdev Vaidya ◽  
Lauren A Dalvin ◽  
Antonio Yaghy ◽  
Richard Pacheco ◽  
Jerry A Shields ◽  
...  
Keyword(s):  
Risk Factors ◽  
Multivariate Analysis ◽  
Univariate Analysis ◽  
Tumor Location ◽  
Tumor Formation ◽  
Older Age ◽  
Conjunctival Melanoma ◽  
Secondary Tumor ◽  
Unit Increase ◽  
History Of

Purpose: To investigate risk factors for recurrent or new tumor in patients with conjunctival melanoma. Methods: Retrospective review of patients with conjunctival melanoma managed on the Ocular Oncology Service, Wills Eye Hospital from 1974 to 2019. Results: There were 540 patients with mean follow-up of 57.6 months, of whom 176 (33%) had recurrent or new tumor formation. Risk factors for recurrent or new tumor on univariate analysis included presentation at older age (OR: 1.02 [1.01–1.03] per 1-year increase in age, p = 0.002), history of prior conjunctival surgery (OR: 1.62 [1.05–2.49], p = 0.03), worse visual acuity at presentation (OR: 1.76 [1.04–2.98] per 1 log-unit increase, p = 0.04), more advanced AJCC clinical T-subcategory (OR: 1.08 [1.02–1.14] per 1 subcategory increase, p = 0.01), tumor primary location in tarsal conjunctiva (OR: 1.80 [1.09–2.98], p = 0.02), and secondary tumor involvement of the fornix (OR: 1.68 [1.06–2.65], p = 0.03), and eyelid (OR: 1.92 [1.07–3.43], p = 0.03). Risk factors on multivariate analysis using all demographics, clinical features, and tumor location included presentation at older age (OR: 1.02 [1.00–1.03], p = 0.01), history of prior conjunctival surgery (OR: 1.84 [1.16–2.94], p = 0.01), and more advanced AJCC clinical T-subcategory (OR: 1.07 [1.01–1.13] per one subcategory increase, p = 0.03). Conclusion: On multivariate analysis, the strongest predictors of recurrent or new tumor formation following treatment of conjunctival melanoma included older age, history of prior conjunctival surgery, and advanced AJCC T-subcategory. These results suggest that earlier detection and the first surgery in conjunctival melanoma management are critical for prevention of recurrent or new tumor, and we recommend prompt referral to an experienced surgeon.

Factors associated with diagnosis and operability of chronic thromboembolic pulmonary hypertension

2013 ◽  
Vol 110 (07) ◽  
pp. 83-91 ◽  
Author(s):  
Gérald Simonneau ◽  
Joanna Pepke-Zaba ◽  
Eckhard Mayer ◽  
David Ambrož ◽  
Isabel Blanco ◽  
...  
Keyword(s):  
Diabetes Mellitus ◽  
Risk Factors ◽  
Pulmonary Hypertension ◽  
Venous Thromboembolism ◽  
Univariate Analysis ◽  
Chronic Thromboembolic Pulmonary Hypertension ◽  
Factors Associated ◽  
Thromboembolic Pulmonary Hypertension ◽  
History Of ◽  
Acute Venous Thromboembolism

SummaryChronic thromboembolic pulmonary hypertension (CTEPH) and idiopathic pulmonary hypertension (IPAH) share a similar clinical presentation, and a differential diagnosis requires a thorough workup. Once CTEPH is confirmed, patients who can be safely operated have to be identified. We investigated risk factors associated with CTEPH and IPAH, and the criteria for the selection of operable CTEPH patients. This case-control study included 436 consecutive patients with CTEPH and 158 with IPAH in eight European centres, between 2006 and 2010. Conditions identified as risk factors for CTEPH included history of acute venous thromboembolism (p < 0.0001), large size of previous pulmonary embolism (p = 0.0040 in univariate analysis), blood groups non-O (p < 0.0001 in univariate analysis), and older age (p = 0.0198), whereas diabetes mellitus (p = 0.0006), female gender (p = 0.0197) and higher mean pulmonary artery pressure (p = 0.0103) were associated with increased likelihood for an IPAH diagnosis. Operability of CTEPH patients was associated with younger age (p = 0.0108), proximal lesions (p ≤ 0.0001), and pulmonary vascular resistance below 1200 dyn.s.cm-5 (p = 0.0080). Non-operable CTEPH patients tended to be less differentiable from IPAH patients by risk factor analysis than operable patients. This study confirmed the association of CTEPH with history of acute venous thromboembolism and blood groups non-O, and identified diabetes mellitus and higher mean pulmonary artery pressure as factors suggesting an IPAH diagnosis. Non-operable CTEPH is more similar to IPAH than operable CTEPH regarding risk factors.

scholarly journals Analysis of the Influence of Risk Factors of Type 2 DM on Outpatients at DKT Bandar Hospital Lampung, 2020

2021 ◽  
Vol 4 (2) ◽  
pp. 4-14
Author(s):  
Feby Esmiralda ◽  
Aila Karyus ◽  
Kodrat Pramudho
Keyword(s):  
Physical Activity ◽  
Diabetes Mellitus ◽  
Risk Factors ◽  
Type 2 Diabetes ◽  
Type 2 Diabetes Mellitus ◽  
Univariate Analysis ◽  
Bivariate Analysis ◽  
P Value ◽  
History Of

DM is a chronic metabolic disease characterized by hyperglycemia and cause serious complications with an increasing prevalence rate. Control of risk factors that affect the incidence of DM is needed to prevent the emergence of DM and delay disease complications. The purpose of this study is to determine the risk factors that influence the incidence of type 2 diabetes outpatients at the DKT Bandar Lampung Hospital. This type of research is quantitative observational analytic with a case control approach. The population came from all patients undergoing outpatient treatment at the Internal Medicine Department of the DKT Hospital in Bandar Lampung with 44 case samples and 44 control samples. Data analysis used univariate analysis with percentages, bivariate analysis with Chi Square and multivariate analysis with multiple logistic regression. The results showed that there was a significant influence between the risk factors for age (p value 0.017), hereditary history of diabetes (p value 0.03), physical activity (p value 0.002) and obesity (p value 0.001) with the incidence of type 2 diabetes, while a history of hypertension has no effect on the incidence of type 2 diabetes mellitus (p value 0.135). Meanwhile, the most dominant variable influencing the incidence of outpatient type 2 diabetes mellitus at DKT Bandar Lampung Hospital is physical activity with OR 5.29. Maximum promotive, preventive, curative and rehabilitative efforts are needed to control risk factors for type 2 diabetes

scholarly journals The relationship between contact to cat and the development of asthma in children

2009 ◽  
Vol 49 (6) ◽  
pp. 379
Author(s):  
Made Lndah Nastiti Utami Budha ◽  
Roni Naning ◽  
Ketut Dewi Kumara Wati
Keyword(s):  
Risk Factors ◽  
Multivariate Analysis ◽  
Univariate Analysis ◽  
Significant Risk ◽  
Significant Risk Factor ◽  
Stepwise Logistic Regression ◽  
Passive Smoker ◽  
History Of ◽  
Asthma In Children ◽  
The Relationship

Background Data suggesting history of direct or indirect contactto cats are either protective, has no effect or increase risk ofsensitization and asthma development.Objective To determine the relationship between childhoodcontact to cat and the development of asthma in children.Methods A case control study was conducted in Denpasar sinceDecember 2006 until Juli 2008. In this study, subjects withasthma (cases group) were selected for comparisons to a series of healthy subjects without asthma (controls group). Forty-sevensubjects (3-12 years) with asthma were recruited and matched(age and sex) with 4 7 healthy and non asthma controls. Data were collected using two kinds of questionnaires, i.e: ISAAC, ATS 78, and Robertson modification questionnaire from Medical School, University of Indonesia, which had been validated to determine asthma and asthma risk factors questionnaire. Data were analyzed as univariate by using chi-square or Fisher's exact test, and multivariate analysis by stepwise logistic regression model.Results Result of univariate analysis showed that there were seven significant risk factors of asthma. Using multivariate analysis, contact to cat was significant risk factor for asthma [OR: 4.5 (95% CI 1.3 to 16.0), P= 0.020]. Other significant risk factors were; contact to cockroach [OR: 11.7 (95% CI 2.6 to 51.6), P= 0.001], use of kapok mattress [OR: 6.4 (95% CI 1.4 to 29.0), P= 0.015], passive smoker [OR: 4.7 (95% CI 1.3 to 17.0), P= 0.018], and atopic history [OR: 9.2 (95% CI 2.3 to 36.7), P= 0.002].Conclusions There was a relationship between childhood contactto cat and the development of asthma in children. Risk factors that statistically significant were; contact to cockroach, use of kapok mattress, passive smoker, and history of allergy in study subject.

Long-Term Capd Survival and Analysis of Mortality Risk Factors: 12-Year Experience of a Single Mexican Center

2001 ◽  
Vol 21 (2) ◽  
pp. 148-154 ◽  
Author(s):  
Alfonso M. Cueto–Manzano ◽  
Eduardo Quintana–Piña ◽  
Ricardo Correa–Rotter
Keyword(s):  
Diabetes Mellitus ◽  
Risk Factors ◽  
Multivariate Analysis ◽  
Old Age ◽  
Mortality Risk ◽  
Patient Survival ◽  
Univariate Analysis ◽  
Technique Survival ◽  
Technique Failure ◽  
Low Serum

Objective To evaluate patient and technique survival, and to analyze mortality risk factors in a large Mexican single-center continuous ambulatory peritoneal dialysis (CAPD) program. Design Cohort study. Setting Tertiary care, teaching hospital located in Mexico City. Patients All patients from our CAPD program (1985 – 1997) were retrospectively studied. Interventions Clinical and biochemical variables at the start of dialysis were recorded and considered in the analysis of risk factors. Main Outcome Measures End points were patient (alive, dead, or lost to follow-up) and technique status at the end of the study (December 1997). Results 627 patients, 37% with diabetes mellitus (DM), were included. Median patient survival (± SE) was 5.1 ± 0.6 years. In the univariate analysis, the following variables were associated ( p < 0.05) with mortality: DM, old age, hypoalbuminemia, low serum creatinine, low serum phosphate, and lymphopenia. In the multivariate analysis, the only significant mortality risk factors were DM (RR 2.56, p < 0.0001), old age (RR 1.01, p = 0.01), hypoalbuminemia (RR 0.77, p = 0.04), and lymphopenia (RR 0.98, p = 0.05). Median technique survival was 4.0 ± 0.2 years. Peritonitis, hypoalbuminemia, lymphopenia, old age, and DM were all significantly associated ( p < 0.05) with technique failure in the univariate analysis, while in the multivariate analysis, only DM (RR 1.78, p = 0.001), peritonitis (RR 1.13, p = 0.004), lymphopenia (0.98, p = 0.04), and hypoalbuminemia (RR 0.80, p = 0.06) were technique failure predictors. Conclusions Patient survival in our setting is similar to that reported in other series. Diabetes mellitus, lymphopenia, and hypoalbuminemia were the strongest predictive factors for mortality and technique failure on CAPD. Our 12-year CAPD program is one of the largest single-centers reported in CAPD literature.

scholarly journals Extramedullary Relapse after Chemotherapy-Only Conditioning in Latin-Americans with Acute Leukemia: A Common Problem

Blood ◽  
2020 ◽  
Vol 136 (Supplement 1) ◽  
pp. 31-32
Author(s):  
Christianne Bourlon De Los Rios ◽  
Aldo A. Acosta-Medina ◽  
Luis Arias-Espinosa ◽  
Perla R Colunga Pedraza ◽  
Jose Angel Hawing-Zarate ◽  
...  
Keyword(s):  
Risk Factors ◽  
Multivariate Analysis ◽  
Acute Leukemia ◽  
Latin American ◽  
Univariate Analysis ◽  
Disease Stage ◽  
Extramedullary Relapse ◽  
History Of ◽  
Conditioning Regimens ◽  
Relapse Therapy

Background Allogeneic hematopoietic stem cell transplantation (allo-HSCT) is an effective therapy for acute leukemia (AL) with the potential to achieve long-term remission. Nevertheless, relapse remains the main cause of mortality after allo-HSCT. Isolated extramedullary relapse (iEMR) is defined as the presence of clonal blasts in tissues other than the medullary compartment, in the absence of bone marrow relapse (BMR) and with full donor chimerism. Reports on its prevalence and risk factors are rare and its implications on prognosis and treatment continue to be an area of active study. Our aim was to describe the rates, clinical characteristics, and outcomes of patients with iEMR in the post-allo-HSCT setting. Methods Retrospective multicenter study that included patients ≥15-years-old diagnosed with AL who underwent allo-HSCT with chemotherapy-only conditioning regimens between 1999-2019. Patients referred to participating centers after HSCT and those with incomplete medical records were excluded. The Kaplan-Meier method was used to construct survival curves, differences between groups were analyzed using the log-rank test, and a standard Cox-regression was carried out for multivariate analysis. Results One hundred twenty-four patients were included with a median follow-up of 12 months (1-158) after allo-HSCT. The most common AL phenotype was lymphoblastic (ALL) in 66.1% (n=82). High-risk cytogenetics were present in 23.9% (n= 28). Twenty-three patients (18.5%) had a history of extramedullary disease (EMD) prior to allo-HSCT, CNS being the most common site in 52.2% (n=12). Additional baseline characteristics are presented in Table 1. Median overall survival (OS) for the cohort was 15 months (1-158). Factors related to decreased OS on univariate analysis are shown in Table 2. Independent risk factors for mortality were: belonging to the non-AYA group (HR 4.7,95%CI 1.6-13.3; p=0.004), grade III-IV acute GVHD (HR 3.9, 95%CI 1.6-9.8; p=0.003), and absence of chronic GHVD (HR 10.3, 95%CI 3.4-30.9; p&lt;0.001). Sixty-seven patients (54%) relapsed after allo-HSCT with a median time to relapse of 13 months (1-158). Of these, 19 (28.4%) had EM involvement, of which 16 (23.9%) had iEMR. All cases of iEMR occurred in patients with ALL. The most commonly involved EM sites were CNS in 47.3% (n=9), skin in 26.3% (n=5), and breast in 15.8% (n=3). Of patients with post-allo-HSCT CNS relapse, 85.7% (n=6) had prior history of pre-HSCT CNS EMD. Post-relapse therapy was administered to 76.1% (n=51), including a second allo-HSCT in 25.5% (n=13), the remaining patients transitioned to palliative care. Median relapse free survival (RFS) was 13 months (1-124). Factors demonstrating a protective role are described in Table 2. On multivariate analysis, early disease stage at time of HSCT (HR 0.35, 95% CI 0.18-0.71; p=0.003) and the development of chronic GVHD (HR 0.29, 95% CI 0.15-0.54; p&lt;0.001) had a positive impact on RFS. The median OS after relapse was 4 months (2.6-5.3). Factors related to increased survival on univariate analysis are described in Table 2 and in Figure 1. On multivariate analysis, an iEMR (HR 0.13, 95% CI 0.026-0.67; p= 0.015), as compared to a relapse with a medullary component, and a complete remission after post-relapse therapy (HR 0.095, 95%CI 0.039-0.233; p&lt;0.001) positively impacted OS. Conclusion Isolated EMR was highly prevalent in our population as compared to historical cohorts. This reflects differences in Latin American AL epidemiologic distribution, with high representation of ALL, and our limited access to conditioning regimens based on total body irradiation. Patients that had an iEMR and achieved treatment response had improved survival outcomes which may reflect a more indolent biology allowing the clinician time to implement therapy intensification interventions. Additionally, in our setting, escalation of pre-HSTC therapy to achieve deeper responses and tailoring HSCT, in combination with post-HSCT CNS prophylaxis, are potential strategies that should be pursued further. Disclosures No relevant conflicts of interest to declare.

Predictors of restenosis after carotid artery stenting in 241 cases

2015 ◽  
Vol 8 (7) ◽  
pp. 677-679 ◽  
Author(s):  
Badih Daou ◽  
Nohra Chalouhi ◽  
Robert M Starke ◽  
Richard Dalyai ◽  
Adam Polifka ◽  
...  
Keyword(s):  
Risk Factors ◽  
Cardiovascular Disease ◽  
Multivariate Analysis ◽  
Carotid Artery ◽  
Cerebrovascular Accident ◽  
Carotid Artery Stenting ◽  
Univariate Analysis ◽  
Multivariate Logistic Regression ◽  
History Of

BackgroundVariable rates of restenosis after carotid artery stenting (CAS) have been reported, and few predictors have been suggested. Because CAS is being performed with increasing frequency, more data are needed to evaluate the rate and predictors of restenosis and possibly identify new risk factors for restenosis after CAS. The aim of this study was to analyze the rate and predictors of restenosis after CAS.Methods241 patients with carotid artery stenosis treated with stenting were analyzed retrospectively to identify patients who had restenosis after stenting. Univariate analysis and multivariate logistic regression were conducted to determine the predictors of restenosis.ResultsMean patient age was 67.5 years. 8.3% of patients who underwent CAS had carotid restenosis of ≥50% during follow-up. 3.7% of patients required retreatment. Mean duration from CAS to retreatment was 11 months. In multivariate analysis, the predictors of restenosis included history of cardiovascular disease (OR=8.88, p<0.001) and having a cerebrovascular accident (CVA) prior to stenting (OR=1.87, p=0.034). A higher percentage of preoperative carotid stenosis was associated with higher odds of restenosis in univariate analysis (p=0.04, OR stenosis ≥80%=5.7).ConclusionsOur results suggest that the rate of carotid restenosis after stenting is low. Patients with cardiovascular disease, patients who had a CVA prior to stenting, and patients with higher percentages of preoperative stenosis had higher odds of restenosis. Higher rates of restenosis should be kept in mind when opting for CAS in these patients.

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