scholarly journals Aortic atherosclerotic plaques: the role of anticoagulation

2021 ◽  
Vol 42 (Supplement_1) ◽  
Author(s):  
P Silverio Antonio ◽  
T Rodrigues ◽  
N Cunha ◽  
S Couto Pereira ◽  
J Brito ◽  
...  

Abstract Introduction Aortic atherosclerotic plaques (AAPs) are one of the major causes of spontaneous and iatrogenic stroke and peripheral emboli, carrying an high morbidity and mortality. Transoesophageal echocardiography (TOE) plays a key rule on detecting AAP. The therapeutic approach of this patients (pts) is not well stablished. Purpose To evaluate the impact of anticoagulation (ACO) therapy on major events in asymptomatic pts with AAP detected in TOE. Methods Single-center retrospective study of consecutive patients submitted to TOE between 2010 and 2019 with documentation of AAP. Plaques were described as complex (1) >4mm, (2) ulcerated and (3) mobile thrombi. The plaque location was also documented. We consulted pts data charts for clinical characterization and events recording during the follow up. Major events were defined as stroke, bleeding, hospital admissions (either cardiovascular (CV) and non-CV) and death. Statistical analysis was performed using Cox regression and Chi-square tests. Results We enrolled 177 pts with a mean age of 70±10.5 years, 63.8% males, 31.1% diabetic, 73.4% hypertensive, 54.2% with dyslipidaemia, 62.7% obese, 25.4% with peripheral arterial disease, 25.9% with previous stroke and 55.4% with supraventricular arrhythmia. Most of pts had plaques >4mm (80.8%), mobile thrombi in 11.9% and ulcerated plaques in 7.3%; most of the plaques were located in proximal descending aorta (50.3%) and aortic cross (38.4%). Regarding baseline therapy, 52% were under ACO and 50.3% under statin. The main indication of ACO was atrial fibrillation (45.8%). During follow up (mean time: 1613±1255 days), 61.5% pts died (10.7% from CV causes, 13% with unknown cause), 17.5% had a stroke, 5.7% had other embolic event (lower limbs emboli, unilateral amaurosis and ischemic colitis). Bleeding occurred in 18.3% pts; 47% pts were hospitalized (28.3% from CV cause). Adjusting for age and comorbidities, there were no significant differences between the group with and without ACO. ACO therapy prevented death from any cause, being also an independent predictor (p=0.08, OR 0.489, IC 95% 0.288–0.831) when adjusted for comorbidities and age. ACO was associated with bleeding events (p=0.003), but not with stroke or hospitalization from any cause (p=NS). Conclusion In this subset of pts, ACO therapy prevented death from any cause in pts with AAP. This may have therapeutic implications when approaching this pts, although larger studies to confirm these results are needed. FUNDunding Acknowledgement Type of funding sources: None. Non-CV death and anticoagulation

2020 ◽  
Vol 133 (1) ◽  
pp. 182-189
Author(s):  
Tae-Jin Song ◽  
Seung-Hun Oh ◽  
Jinkwon Kim

OBJECTIVECerebral aneurysms represent the most common cause of spontaneous subarachnoid hemorrhage. Statins are lipid-lowering agents that may expert multiple pleiotropic vascular protective effects. The authors hypothesized that statin therapy after coil embolization or surgical clipping of cerebral aneurysms might improve clinical outcomes.METHODSThis was a retrospective cohort study using the National Health Insurance Service–National Sample Cohort Database in Korea. Patients who underwent coil embolization or surgical clipping for cerebral aneurysm between 2002 and 2013 were included. Based on prescription claims, the authors calculated the proportion of days covered (PDC) by statins during follow-up as a marker of statin therapy. The primary outcome was a composite of the development of stroke, myocardial infarction, and all-cause death. Multivariate time-dependent Cox regression analyses were performed.RESULTSA total of 1381 patients who underwent coil embolization (n = 542) or surgical clipping (n = 839) of cerebral aneurysms were included in this study. During the mean (± SD) follow-up period of 3.83 ± 3.35 years, 335 (24.3%) patients experienced the primary outcome. Adjustments were performed for sex, age (as a continuous variable), treatment modality, aneurysm rupture status (ruptured or unruptured aneurysm), hypertension, diabetes mellitus, household income level, and prior history of ischemic stroke or intracerebral hemorrhage as time-independent variables and statin therapy during follow-up as a time-dependent variable. Consistent statin therapy (PDC > 80%) was significantly associated with a lower risk of the primary outcome (adjusted hazard ratio 0.34, 95% CI 0.14–0.85).CONCLUSIONSConsistent statin therapy was significantly associated with better prognosis after coil embolization or surgical clipping of cerebral aneurysms.


2021 ◽  
Vol 19 (1) ◽  
Author(s):  
Antonio Leon-Justel ◽  
Jose I. Morgado Garcia-Polavieja ◽  
Ana Isabel Alvarez-Rios ◽  
Francisco Jose Caro Fernandez ◽  
Pedro Agustin Pajaro Merino ◽  
...  

Abstract Background Heart failure (HF) is a major and growing medical and economic problem, with high prevalence and incidence rates worldwide. Cardiac Biomarker is emerging as a novel tool for improving management of patients with HF with a reduced left ventricular ejection fraction (HFrEF). Methods This is a before and after interventional study, that assesses the impact of a personalized follow-up procedure for HF on patient’s outcomes and care associated cost, based on a clinical model of risk stratification and personalized management according to that risk. A total of 192 patients were enrolled and studied before the intervention and again after the intervention. The primary objective was the rate of readmissions, due to a HF. Secondary outcome compared the rate of ED visits and quality of life improvement assessed by the number of patients who had reduced NYHA score. A cost-analysis was also performed on these data. Results Admission rates significantly decreased by 19.8% after the intervention (from 30.2 to 10.4), the total hospital admissions were reduced by 32 (from 78 to 46) and the total length of stay was reduced by 7 days (from 15 to 9 days). The rate of ED visits was reduced by 44% (from 64 to 20). Thirty-one percent of patients had an improved functional class score after the intervention, whereas only 7.8% got worse. The overall cost saving associated with the intervention was € 72,769 per patient (from € 201,189 to € 128,420) and €139,717.65 for the whole group over 1 year. Conclusions A personalized follow-up of HF patients led to important outcome benefits and resulted in cost savings, mainly due to the reduction of patient hospitalization readmissions and a significant reduction of care-associated costs, suggesting that greater attention should be given to this high-risk cohort to minimize the risk of hospitalization readmissions.


2021 ◽  
Vol 80 (Suppl 1) ◽  
pp. 733.2-734
Author(s):  
I. Flouri ◽  
N. Kougkas ◽  
N. Avgustidis ◽  
A. Repa ◽  
A. Eskitzis ◽  
...  

Background:Long-term observational studies of patients under biologic disease-modifying anti-rheumatic drug (bDMARD) therapies in routine clinical practice can provide us with important data regarding patients with comorbidities, who are usually excluded from randomized controlled studies.Objectives:To study the impact of comorbidities in the outcome (response and persistence to therapy) of patients with spondyloarthritis (SpA) receiving bDMARDs in real-world clinical practice.Methods:Prospective study of all patients who start a bDMARD in a tertiary centre University Hospital after their consent. All patient comorbidities [among a list of approximately 100 pre-specified major comorbidities] are registered by treating physicians at baseline and during follow-up.Comorbidities were studied as total Comorbidities Count (CC) and rheumatic disease comorbidity index (RDCI). Statistical analyses were performed using logistic and Cox regression models, adjusting for the potential confounding of age, sex, disease duration, diagnosis (axial vs. peripheral SpA), number of previous conventional synthetic and biologic DMARDs, year of therapy start, and co-administered methotrexate and corticosteroids (yes/no). Analyses of response to therapy also included baseline BASDAI or ASDAS indices as confounding variables.Results:A total of 603 biologic treatments (1st: 298, 2nd: 157, ≥3rd: 148) were analyzed. Half (51%) of the patients were female, 413 patients had axial SpA (AxSpA) and 190 peripheral SpA (perSpA). At baseline, median (IQR) age: 48 (38-57) years, disease duration: 11 (4-19) years, CC: 2 (1-4) and RDCI: 1 (0-2). Both comorbidity indices were significantly higher in perSpA compared to AxSpA (p<0.001).At 6 months of therapy, 31% of patients with AxSpA achieved BASDAI50 and 39% had ASDAS-ESR < 2.1. Higher CC was an independent predictor of insufficient response according to BASDAI50 [OR (95%) = 0.70 (0.52-0.94), p=0.019] and higher RDCI was predicting failure to achieve ASDAS-ESR < 2.1 [OR (95%) = 0.59 (0.37-0.94), p=0.027]. Other independent predictors of non-response were age, longer disease duration and (for ASDAS-ESR<2.1) higher baseline disease activity.During 1405 patient-years of follow-up, 349 (58%) treatments were discontinued. The adjusted hazard ratio for bDMARD discontinuation within the first 2 years of treatment due to insufficient response was doubled in patients with CC ≥2 versus those with CC ≤1 [HR = 2.27 (1.14-4.53), p=0.020] or with RDCI ≥1 (vs. RDCI = 0) [HR = 2.23 (1.22-4.07), p=0.009]. Comorbidities’ indices were not significant predictors of treatment discontinuations due to adverse events.Conclusion:The presence of comorbidities in patients with SpA is an independent predictor for insufficient 6-month response to bDMARDs and resultant treatment discontinuation due to failure.Acknowledgements:This research is co-financed by Greece and the European Union (European Social Fund- ESF) through the Operational Programme «Human Resources Development, Education and Lifelong Learning» in the context of the project “Reinforcement of Postdoctoral Researchers - 2nd Cycle” (MIS-5033021), implemented by the State Scholarships Foundation (ΙΚΥ).Disclosure of Interests:None declared


Heart ◽  
2017 ◽  
Vol 104 (6) ◽  
pp. 487-493 ◽  
Author(s):  
Ekrem Yasa ◽  
Fabrizio Ricci ◽  
Martin Magnusson ◽  
Richard Sutton ◽  
Sabina Gallina ◽  
...  

ObjectiveTo investigate the relationship of hospital admissions due to unexplained syncope and orthostatic hypotension (OH) with subsequent cardiovascular events and mortality.MethodsWe analysed a population-based prospective cohort of 30 528 middle-aged individuals (age 58±8 years; males, 40%). Adjusted Cox regression models were applied to assess the impact of unexplained syncope/OH hospitalisations on cardiovascular events and mortality, excluding subjects with prevalent cardiovascular disease.ResultsAfter a median follow-up of 15±4 years, 524 (1.7%) and 504 (1.7%) participants were hospitalised for syncope or OH, respectively, yielding 1.2 hospital admissions per 1000 person-years for each diagnosis. Syncope hospitalisations increased with age (HR, per 1 year: 1.07, 95% CI 1.05 to 1.09), higher systolic blood pressure (HR, per 10 mm Hg: 1.06, 95% CI 1.01 to 1.12), antihypertensive treatment (HR: 1.26, 95% CI 1.00 to 1.59), use of diuretics (HR: 1.77, 95% CI 1.31 to 2.38) and prevalent cardiovascular disease (HR: 1.59, 95% CI 1.14 to 2.23), whereas OH hospitalisations increased with age (HR: 1.11, 95% CI 1.08 to 1.12) and prevalent diabetes (HR: 1.82, 95% CI 1.23 to 2.70). After exclusion of 1399 patients with prevalent cardiovascular disease, a total of 473/464 patients were hospitalised for unexplained syncope/OH before any cardiovascular event. Hospitalisation for unexplained syncope predicted coronary events (HR: 1.85, 95% CI 1.49 to 2.30), heart failure (HR: 2.24, 95% CI 1.65 to 3.04), atrial fibrillation (HR: 1.84, 95% CI 1.50 to 2.26), aortic valve stenosis (HR: 2.06, 95% CI 1.28 to 3.32), all-cause mortality (HR: 1.22, 95% CI 1.09 to 1.37) and cardiovascular death (HR: 1.72, 95% CI 1.23 to 2.42). OH-hospitalisation predicted stroke (HR: 1.66, 95% CI 1.24 to 2.23), heart failure (HR: 1.78, 95% CI 1.21 to 2.62), atrial fibrillation (HR: 1.89, 95% CI 1.48 to 2.41) and all-cause mortality (HR: 1.14, 95% CI 1.01 to 1.30).ConclusionsPatients discharged with the diagnosis of unexplained syncope or OH show higher incidence of cardiovascular disease and mortality with only partial overlap between these two conditions.


2021 ◽  
Vol 39 (15_suppl) ◽  
pp. 11548-11548
Author(s):  
Olga Vornicova ◽  
Jay Wunder ◽  
Peter W. M. Chung ◽  
Abha A. Gupta ◽  
Rebecca Anne Gladdy ◽  
...  

11548 Background: The mainstay therapy of operable STS remains surgery, which may include (neo)adjuvant therapies. Within the TSP, marginally inoperable STS are often treated with sequential chemo (CTX) and radiation (RT) therapy, followed by surgery (SX). Herein we present our experience of multi-modality therapies for marginally inoperable STS patients (pts). Methods: This was a dual-center, single program, retrospective review. Pts were included if deemed to have marginally inoperable primary or recurrent STS, as determined at the TSP tumor board. Pts included must have had CTX with the intent of having RT and SX after. Pts demographics, treatment details and clinical outcomes data were collected. Relapse free survival (RFS) and overall survival (OS) were estimated using the Kaplan-Meier method. Multivariate analysis of the influence of disease characteristics and treatment on outcomes was assessed using Cox regression. Results: From June 2005 to May 2019, 75 pts were identified. Median age was 52 years (range 16-72). Pts were predominantly male (55%). Histological subtypes included dedifferentiated liposarcoma (29%), leiomyosarcoma (27%), synovial sarcoma (19%) and others (25%). Primary tumor was located in the retroperitoneum (48%), extremity (23%), pelvis (12%), thorax (9%), and other sites (8%). All pts had doxorubicin and ifosfamide CTX (median 4 cycles; range 1-6), while RT dose delivered was 50.4Gy/28 fractions in 58 (77%) of cases. Twenty three pts (31%) achieved partial response, 40 pts (53%) had stable disease and 12 pts (16%) had progression of disease (PD) on CTX, of which half (8%) did not undergo further treatment. Nine pts (12%) underwent CTX followed by SX due to significant response, 9 pts (12%) underwent CTX and RT without SX due to persistent tumor unresectability or PD. The final 50 pts (67%) completed multi-modality treatment (CTX, RT & SX). Overall, 59 pts (79%) had SX; negative margins were achieved in 53 (71%). 19 pts (25%) had postoperative complications, causing death in 2 pts (2.7%). With a median follow-up of 72 months, median RFS and OS were 26.9 months (95% CI: 0-86.0), and 65 months (95% CI: 13.5-116.4). Extremity location was associated with superior RFS (median not reached [NR], HR 0.28 95% CI 0.09-0.83, p = 0.022), and OS (median NR, HR 0.29 95% CI 0.09-0.90, p = 0.032). Receipt of RT was associated with superior RFS (median NR, HR 0.23 95% CI 0.10-0.52, p < 0.001); and OS (median NR, HR 0.21 95% CI 0.09-0.50, p < 0.001). Pts who had PD after CTX were associated with poor outcomes - RFS (median 4.7 months, HR 2.03 95% CI 0.61-6.76, p = 0.24); and OS (median 21.9 months, HR 2.48 95% CI 0.73-8.47, P = 0.144). Conclusions: Multi-modality approach resulted in successful resection for most pts with marginally inoperable STS. Extremity location and RT administration were associated with better RFS and OS, while progression on CTX confers worse survival outcomes.


2019 ◽  
Author(s):  
Marica Cassarino ◽  
Katie Robinson ◽  
Íde O’Shaughnessy ◽  
Eimear Smalle ◽  
Stephen White ◽  
...  

Abstract Background : Older people are frequent Emergency Department (ED) users who present with complex issues that are linked to poorer health outcomes post-index visit, often have increased ED length of stay and tend to have raised healthcare costs. Encouraging evidence suggests that ED teams involving health and social care professionals (HSCPs) can contribute to enhanced patient flow and improved patient experience by improving care decision-making and thus promoting timely and effective care. However, the evidence supporting the impact of HSCPs teams assessing and intervening with older adults in the ED is limited and identifies important methodological limitations, highlighting the need for more robust and comprehensive investigations of this model of care. This study aims to evaluate the impact of a dedicated ED-based HSCP team on the quality, safety, clinical and cost-effectiveness of care of older adults when compared to usual care. Methods : The study is a single-site randomised controlled trial whereby patients aged ≥65 years who present to the ED of a large Irish hospital will be randomised to the experimental group (ED-based HSCP assessment and intervention) or the control group (usual ED care). The recruitment target is 320 participants. The HSCP team will provide a comprehensive functional assessment as well as interventions to promote a safe discharge for the patient. The primary outcome is ED length of stay (from arrival to discharge). Secondary outcomes include: rates of hospital admissions from the ED, ED re-visits, unplanned hospital admissions and healthcare utilisation at 30-days, four and six-month follow-up; patient functional status and quality of life (at baseline and follow-up); patient satisfaction; costs-effectiveness in terms of costs associated with ED-based HSCP compared to usual care; and perceptions on implementation by ED staff members. Discussion : This is the first randomised controlled trial testing the impact of HSCPs working in teams in the ED on the quality, safety, clinical and cost-effectiveness of care for older patients. The findings of the study will provide important information on the effectiveness of this model of care for future implementation. Trial registration : ClinicalTrials.gov, NCT03739515; registered on 12 th November 2018. Protocol version 1. URL: https://clinicaltrials.gov/ct2/show/NCT03739515


2021 ◽  
Vol 2021 ◽  
pp. 1-7
Author(s):  
Wei Xiang Qi ◽  
Lu Cao ◽  
Cheng Xu ◽  
Jiayi Chen

Background. To investigate the outcomes of primary squamous cell carcinoma (PSCC) of the breast undergoing radical surgery with or without adjuvant radiotherapy (RT). Materials and Methods. A population cohort with histologically diagnosed PSCC of the breast was identified from the SEER database. The Kaplan–Meier method and Cox-regression proportional hazards model was used to assess the impact of surgical types with or without adjuvant RT on the cause-specific survival (CSS) and overall survival (OS). A retrospective analysis of PSCC between Jan 2010 and Dec 2018 from our institute was performed. Results. A total of 515 patients with PSCC of the breast were included, 254 patients treated with mastectomy (MAST) alone, 78 with MAST + RT, 87 with lumpectomy (LUMP) alone, and 96 with LUMP + RT. The median follow-up time was 118 months (range: 0–379 months). In the multivariate Cox analyses, LUMP + adjuvant RT was an independent prognostic factor for CSS (p = 0.028) and OS (p = 0.048). Patients treated with LUMP + RT had better survival rates than patients who underwent lumpectomy (CSS, p = 0.034; OS, p = 0.0004), MAST alone (CSS, p = 0.0001; OS, p < 0.0001), and MAST + RT (CSS, p = 0.0001; OS, p = 0.0078), while postmastectomy RT did not significantly improve OS (p = 0.062) and CSS (p = 0.67) when compared to MAST alone. In addition, a total of 28 patients with PSCC of the breast were identified from our institute. All of these patients presented with estrogen receptor-negative type, and three of them had HER-2-positive PSCC; the median tumor size was 3 cm (range: 0.5–15 cm). Eight patients were treated with LUMP + adjuvant RT, thirteen with MAST, and seven with MAST + RT. Until the last follow-up of Sep 2021, 26 patients with PSCC were still alive and free of breast cancer, excepting that one patient treated with MAST and one patient with MAST + RT died from breast cancer. Conclusion. PSCC of the breast after radical surgery has a poor prognosis. Adjuvant RT after LUMP significantly improves survival of patients with PSCC of the breast. Further studies are still needed to investigate the role of adjuvant RT in PSCC of the breast after mastectomy.


2019 ◽  
Vol 29 (Supplement_4) ◽  
Author(s):  
M Bonaccio ◽  
A Di Castelnuovo ◽  
S Costanzo ◽  
M Persichillo ◽  
A De Curtis ◽  
...  

Abstract Background We aimed to explore the association of combined healthy lifestyles with risk of first hospitalization for all-cause, cardiovascular disease (CVD), ischemic heart disease (IHD) and stroke in a southern Italian population-based cohort. We also investigated several biological mechanisms possibly on the pathway between lifestyles and health outcomes. Methods Longitudinal analysis on 23,161 men and women (aged≥35 y) recruited in the Moli-sani Study (2005-2010). We defined 4 healthy lifestyle factors as abstention from smoking; high adherence to Mediterranean diet; physical activity; absence of abdominal obesity. First hospital admissions for any and CVD-related causes were recorded by direct linkage with hospital discharge form registry. Hazard ratios (HR) with 95% confidence interval (95%CI) were calculated by multivariable Cox-regression. Results Over a median follow up of 7.2 y, we ascertained a total of 9,482 hospitalizations, 3,556 CVD, 939 IHD and 589 stroke-related hospital admissions. Adherence to all four healthy lifestyles, compared with none or 1, was associated with lower risk of hospitalization for any cause (HR = 0.82; 0.74-0.90), CVD (HR = 0.81;0.69-0.95) and IHD (HR = 0.63; 0.44-0.90) and, to a less extent, with stroke hospitalizations. Inflammatory biomarkers (e.g. C-reactive protein) were likely to partly explain the association between lifestyles and all-cause (14%) or CVD (15%) hospitalizations, while inflammation played a leading role towards risk of IHD (30%) and stroke-related hospital admissions (21%). Conclusions The impact of combined 4 healthy lifestyles on first hospitalization risk was considerable. Inflammatory biomarkers explained a large proportion of this association. Key messages Improvements to lifestyle reduce the risk of hospitalizations in a general adult population. Achieving a greater number of healthy behaviours has the potential to reduce the burden of hospitalizations and the associated healthcare costs.


2020 ◽  
Vol 7 (1) ◽  
pp. e000366 ◽  
Author(s):  
Claudia Elera-Fitzcarrald ◽  
Cristina Reátegui-Sokolova ◽  
Rocio Violeta Gamboa-Cardenas ◽  
Mariela Medina ◽  
Francisco Zevallos ◽  
...  

IntroductionSerum uric acid levels have been reported as predictors of cardiovascular, pulmonary, neurological and renal morbidity in patients with SLE. However, their role in cumulative global damage in these patients has not yet been determined.ObjectiveTo determine whether serum uric acid levels are associated with new damage in patients with SLE.MethodsThis is a longitudinal study of patients with SLE from the Almenara Lupus Cohort, which began in 2012. At each visit, demographic and clinical characteristics were evaluated, such as activity (Systemic Lupus Erythematosus Disease Activity Index-2K or SLEDAI-2K) and cumulative damage (Systemic Lupus International Collaborating Clinics/American College of Rheumatology Damage Index or SDI). Treatment (glucocorticoids, immunosuppressive drugs and antimalarials) was also recorded. Univariable and multivariable Cox regression models were used to determine the impact of serum uric acid levels on the risk of new damage.ResultsWe evaluated 237 patients, with a mean age (SD) at diagnosis of 35.9 (13.1) years; 220 patients (92.8%) were women, and the duration of the disease was 7.3 (6.6) years. The mean SLEDAI-2K and SDI scores were 5.1 (4.2) and 0.9 (1.3), respectively. Serum uric acid level was 4.5 (1.4) mg/dL. Follow-up time was 3.1 (1.3) years, and 112 (47.3%) patients accrued damage during follow-up. In univariable and multivariable analyses, serum uric acid levels were associated with new damage (HR=1.141 (95% CI 1.016 to 1.282), p=0.026; HR=1.189 (95% CI 1.025 to 1.378), p=0.022, respectively).ConclusionHigher serum uric acid levels are associated with global damage in patients with SLE.


2019 ◽  
Vol 40 (Supplement_1) ◽  
Author(s):  
S Kano ◽  
K Nasu ◽  
M Habara ◽  
T Shimura ◽  
M Yamamoto ◽  
...  

Abstract Background For recanalization of coronary chronic total occlusion (CTO) lesions, subintimal guidewire tracking in both antegrade and retrograde approaches are commonly used. Purpose This study aimed to assess the impact of subintimal tracking on long-term clinical outcomes after recanalization of CTO lesions. Methods Between January 2009 and December 2016, 474 CTO lesions (434patients) were successfully recanalized in our center. After guidewire crossing in a CTO lesion, those lesions were divided into intimal tracking group (84.6%, n=401) and subintimal tracking group (15.4%, n=73) according to intravascular ultrasound (IVUS) findings. Long-term clinical outcomes including death, target lesion revascularization (TLR), target vessel revascularization (TVR) were compared between the two groups. In addition, the rate of re-occlusion after successful revascularization was also evaluated. Results The median follow-up period was 4.7 years (interquartile range, 2.8–6.1). There was no significant difference of the rate of cardiac death between the two groups (intimal tracking vs. subintimal tracking: 7.0% vs. 4.1%; hazard ratio, 0.61; 95% confidence interval [CI], 0.19 to 2.00; p=0.41), TLR (14.3% vs. 16.2%; hazard ratio, 1.34; 95% CI, 0.71 to 2.53; p=0.37), and TVR (17.5% vs. 20.3%; hazard ratio, 1.27; 95% CI, 0.72 to 2.23; p=0.42). However, the rate of re-occlusion was significantly higher in the subintimal tracking group than intimal tracking group at 3-years re-occlusion (4.2% vs. 14.5%; log-rank test, p=0.002, Figure). In the multivariate COX regression, subintimal guidewire tracking was an independent predictor of re-occlusion after CTO recanalization (HR: 5.40; 95% CI: 2.11–13.80; p<0.001). Figure 1 Conclusions Subintimal guidewire tracking for recanalization of coronary CTO was associated with significantly higher incidence of target lesion re-occlusion during long-term follow-up period.


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