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Urgent Endarterectomy for Symptomatic Carotid Occlusion is Associated with a High Mortality

Schlacter, Jamie A; Ratner, Molly; Siracuse, Jeffrey; Patel, Virendra; Johnson, William; Torres, Jose; Chang, Heepeel; Jacobowitz, Glenn; Rockman, Caron; Garg, Karan
OBJECTIVE:Interventions for carotid occlusions are infrequently undertaken and the outcomes are poorly defined. We sought to study patients undergoing urgent carotid revascularization for symptomatic occlusions. METHODS:The Society for Vascular Surgery Vascular Quality Initiative database was queried from 2003 to 2020 to identify patients with carotid occlusions undergoing carotid endarterectomy (CEA). Only symptomatic patients undergoing urgent interventions within 24 hours of presentation were included. Patients were identified based on CT and MRI imaging. This cohort was compared to symptomatic patients undergoing urgent intervention for severe stenosis (≥80%). Primary endpoints were perioperative stroke, death, myocardial infarction (MI) and composite outcomes as defined by the SVS reporting guidelines. Patient characteristics were analyzed to determine predictors of perioperative mortality and neurological events. RESULTS:inhibitor (32.0%), aspirin (77.9%) and renin-angiotensin inhibitor (43.7%) preoperatively. When compared to patients undergoing urgent endarterectomy for severe stenosis (≥80%), those with symptomatic occlusion were well matched with regards to risk factors, but the severe stenosis cohort appeared better medically managed and less likely to present with cortical stroke symptoms. Perioperative outcomes were significantly worse for the carotid occlusion cohort, primarily driven by higher perioperative mortality (2.8% vs 0.9%, P<.001). The composite endpoint of stroke/death/MI was also significantly worse in the occlusion cohort (7.7% vs 4.9%, P=.014). On multivariate analysis, carotid occlusion was associated with increased mortality (OR, 3.028; 95% CI, 1.362-6.730; P=.007) and composite outcome of stroke, death, or MI (OR, 1.790; 95% CI, 1.135-2.822, P=.012). CONCLUSIONS:Revascularization for symptomatic carotid occlusion constitutes approximately 2% of carotid interventions captured in the VQI, affirming the rarity of this undertaking. These patients have acceptable rates of perioperative neurologic events but are at an elevated risk of overall perioperative adverse events, primarily driven by higher mortality, compared to those with severe stenosis. Carotid occlusion appears to be the most significant risk factor for the composite endpoint of perioperative stroke, death, or MI. While intervention for a symptomatic carotid occlusion may be performed with acceptable rate of perioperative complications, judicious patient selection is warranted in this high-risk cohort.
PMID: 37076104
ISSN: 1097-6809
CID: 5466232

Contemporary Treatment of the Asymptomatic Carotid Patient

Rockman, Caron B; Garg, Karan
Stroke is a persistent leading cause of morbidity and mortality, and carotid artery atherosclerosis remains a treatable cause of future stroke. Although most patients with asymptomatic carotid artery disease may be at a relatively low risk for future stroke, most completed strokes are unheralded; thus, the identification and appropriate treatment of patients with asymptomatic carotid artery disease remains a critical part of overall stroke prevention. Select patients with asymptomatic carotid artery stenosis with an increased risk of future stroke based on the degree of stenosis and other imaging or patient-related characteristics are appropriate to consider for carotid artery intervention.
PMID: 37455029
ISSN: 1558-3171
CID: 5535362

Postoperative disability and one-year outcomes for patients suffering a stroke after carotid endarterectomy

Levin, Scott R; Farber, Alik; Kobzeva-Herzog, Anna; King, Elizabeth G; Eslami, Mohammad H; Garg, Karan; Patel, Virendra I; Rockman, Caron B; Rybin, Denis; Siracuse, Jeffrey J
OBJECTIVE:Although post-carotid endarterectomy (CEA) strokes are rare, they can be devastating. The degree of disability that patients develop after such events and its effects on long-term outcomes are unclear. Our goal was to assess the extent of postoperative disability in patients suffering strokes after CEA and evaluate its association with long-term outcomes. METHODS:The Vascular Quality Initiative CEA registry (2016-2020) was queried for CEAs performed for asymptomatic or symptomatic indications in patients with preoperative modified Rankin Scale (mRS) scores of 0 to 1. The mRS grades stroke-related disability as 0 (none), 1 (not significant), 2 to 3 (moderate), 4 to 5 (severe), and 6 (dead). Patients suffering postoperative strokes with recorded mRS scores were included. Postoperative stroke-related disability based on mRS and its association with long-term outcomes were analyzed. RESULTS:Among 149,285 patients undergoing CEA, there were 1178 patients without preoperative disability who had postoperative strokes and reported mRS scores. Mean age was 71 ± 9.2 years, and 59.6% of patients were male. Regarding ipsilateral cortical symptoms within 6 months preoperatively, 83.5% of patients were asymptomatic, 7.3% had transient ischemic attacks, and 9.2% had strokes. Postoperative stroke-related disability was classified as mRS 0 (11.6%), 1 (19.5%), 2 to 3 (29.4%), 4 to 5 (31.5%), and 6 (8%). One-year survival stratified by postoperative stroke-related disability was 91.4% for mRS 0, 95.6% for mRS 1, 92.1% for mRS 2 to 3, and 81.5% for mRS 4 to 5 (P < .001). Multivariable analysis demonstrated that while severe postoperative disability was associated with increased death at 1 year (hazard ratio [HR], 2.97; 95% confidence interval [CI], 1.5-5.89; P = .002), moderate postoperative disability had no such association (HR, 0.95; 95% CI, 0.45-2; P = .88). One-year freedom from subsequent ipsilateral neurological events or death stratified by postoperative stroke-related disability was 87.8% for mRS 0, 93.3% for mRS 1, 88.5% for mRS 2 to 3, and 77.9% for mRS 4 to 5 (P < .001). Severe postoperative disability was independently associated with increased ipsilateral neurological events or death at 1 year (HR, 2.34; 95% CI, 1.25-4.38; P = .01). However, moderate postoperative disability exhibited no such association (HR, 0.92; 95% CI, 0.46-1.82; P = .8). CONCLUSIONS:The majority of patients without preoperative disability who suffered strokes after CEA developed significant disability. Severe stroke-related disability was associated with higher 1-year mortality and subsequent neurological events. These data can improve informed consent for CEA and guide prognostication after postoperative strokes.
PMID: 37040850
ISSN: 1097-6809
CID: 5591742

Young Patients Undergoing Carotid Endarterectomy Have Increased Rates of Recurrent Disease and Late Neurologic Events

Ratner, Molly; Garg, Karan; Chang, Heepeel; Johnson, William; Sadek, Mikel; Maldonado, Thomas; Cayne, Neal; Siracuse, Jeffrey; Jacobowitz, Glenn; Rockman, Caron
OBJECTIVES/OBJECTIVE:There is a paucity of data regarding outcomes of patients with premature cerebrovascular disease (age ≤ 55 years) who undergo carotid endarterectomy (CEA). The objective of this study was to analyze the demographics, presentation, perioperative and later outcomes of younger patients undergoing CEA. METHODS:The Society for Vascular Surgery Vascular Quality Initiative was queried for CEA cases between 2012-2022. Patients were stratified based on age ≤ 55 or age > 55 years. Primary endpoints were periprocedural stroke, death, myocardial infarction and composite outcomes. Secondary endpoints included restenosis (≥80%) or occlusion, late neurologic events and re-intervention. RESULTS:Of 120,549 patients undergoing CEA, 7,009 (5.5%) were ≤ 55 years old (mean age of 51.3 years). Younger patients were more likely to be African American (7.7% vs 4.5%, p < .001), female (45.2% vs 38.9%, p < .001) and active smokers (57.3% vs 24.1%, p < .001). They were less likely than older patients to have hypertension (82.5% vs 89.7%, p < .001), coronary artery disease (25% vs 27.3%, p < .001) and CHF (7.8% vs 11.4%, p<.001). Younger patients were significantly less likely than older patients to be on aspirin, anti-coagulation, statins, or beta-blockers but were more likely to be taking P2Y12 inhibitors (37.2 vs 33.7%, p <.001). Younger patients were more likely to present with symptomatic disease (35.1% vs 27.6%, p<.001) and were more likely to undergo non-elective CEA (19.2% vs 12.8%; P < .001). Younger and older patients had similar rates of perioperative stroke/death (2% vs 2%, p= NS) and post-operative neurologic events (1.9% vs 1.8%, p = NS). However, younger patients had lower rates of overall postoperative complications compared to their older counterparts (3.7% vs 4.7%, p<.001). 72.6% of patients had recorded follow-up (mean 13 months). During follow-up, younger patients were significantly more likely than older patients to experience a late failure, defined as significant (≥80%) restenosis or complete occlusion of the operated artery (2.4% vs 1.5%, p <.001) and were more likely to experience any neurologic event (3.1% vs 2.3%, p<.001). Re-intervention rates did not significantly differ between the two cohorts. After controlling for co-variates using a logistic regression model, age ≤ 55 years was independently associated with increased odds of late re-stenosis/occlusion (OR 1.591, 95% CI 1.221-2.073, p<.001) as well as late neurologic events (OR 1.304, 95% CI 1.079-1.576, p = 0.006). CONCLUSIONS:Young patients undergoing CEA are more likely to be African American, female, and active smokers. They are more likely to present symptomatically and undergo non-elective CEA. Although perioperative outcomes are similar, younger patients are more likely to experience carotid occlusion or restenosis as well as subsequent neurological events, during relatively short follow-up. These data suggest that younger CEA patients may require more diligent follow-up, and a continued aggressive approach to medical management of atherosclerosis to prevent future events related to the operated artery, given the particularly aggressive nature of premature atherosclerosis.
PMID: 36870458
ISSN: 1097-6809
CID: 5432472

Aortobifemoral reconstruction in open AAA repair is associated with increased morbidity and mortality

King, Benjamin; Rockman, Caron; Han, Sukgu; Siracuse, Jeffrey J; Patel, Virendra I; Johnson, William S; Chang, Heepeel; Cayne, Neal; Maldonado, Thomas; Jacobowitz, Glenn; Garg, Karan
OBJECTIVE:Much attention has been given to the influence of anatomic and technical factors, such as maximum abdominal aortic aneurysm diameter and proximal clamp position, in open abdominal aortic aneurysm repair (OSR). However, no studies have rigorously examined the correlation between site of distal anastomosis and OSR outcomes despite conventional wisdom that more proximal sites of anastomosis are preferrable when technically feasible. This study aimed to test the association between sites of distal anastomosis and clinical outcomes for patients undergoing primary elective OSR. METHODS:Our study included 5683 patients undergoing primary elective OSR at 233 centers from 2014 to 2020. Using a variety of statistical methods to account for potential confounders, including multivariable logistic regression and Cox proportional hazards modeling, as well as subgroup analysis, we examined the association between site of distal anastomosis and clinical outcomes in elective OSR. Primary outcomes were major in-hospital complication rate, 30-day mortality, and long-term survival. RESULTS:Patients undergoing elective aortobifemoral reconstruction (n = 672) exhibited significantly increased rates of smoking, chronic obstructive pulmonary disease, and peripheral artery disease in comparison to patients undergoing elective OSR with distal anastomosis to the aorta (n = 2298), common iliac artery (n = 2163), or external iliac artery (n = 550). Patients undergoing aorto-aortic tube grafting were significantly less likely to exhibit iliac aneurysmal disease and significantly more likely to be undergoing elective OSR with a suprarenal or supraceliac proximal clamp position. Using multivariable logistic regression and Cox proportional hazards analysis to control for important confounders, such as age, smoking status, and medical history, we found that distal anastomosis to the common femoral artery was associated with increased odds of major in-hospital complications (adjusted odds ratio, 1.79; 95% confidence interval, 1.46-2.18; P < .001) and reduced long-term survival (adjusted hazard ratio, 1.44; 95% confidence interval, 1.09-1.89; P = .010). We observed no significant differences in 30-day mortality across sites of distal anastomosis in our study population. CONCLUSIONS:It is generally accepted that more proximal sites of distal anastomosis should be selected in OSR when technically feasible. Our findings support this hypothesis by demonstrating that distal anastomosis to the common femoral artery is associated with increased perioperative morbidity and reduced long-term survival. Careful diligence regarding optimization of preoperative health status, perioperative care, and long-term follow-up should be applied to mitigate major complications in this patient population.
PMID: 36918104
ISSN: 1097-6809
CID: 5502402

Positive Preoperative Cardiac Stress Test Associated With Higher Late Mortality in Patients Undergoing Elective Carotid Endarterectomy [Meeting Abstract]

Rokosh, R S; Rockman, C; Jacobowitz, G; Cayne, N; Maldonado, T S; Patel, V I; Siracuse, J J; Veith, F; Chang, H; Garg, K
Objectives: This study compared outcomes in patients with and without preoperative cardiac stress testing undergoing carotid endarterectomy (CEA).
Method(s): Patients in the Vascular Quality Initiative Vascular Implant Surveillance and Interventional Outcomes Network database who underwent elective carotid revascularization between 2016 and 2019 were included. Patients were analyzed by group based upon whether they underwent cardiac stress testing within two years preceding revascularization without subsequent coronary intervention. Subset analysis was performed comparing outcomes between those with negative and positive results, defined as evidence of ischemia or myocardial infarction (MI). Outcomes of interest were periprocedural MI/stroke, 90-day readmission rates, as well as late-term mortality.
Result(s): We analyzed 14,470 patients who underwent elective CEA. Of these, 5411 (37.4%) underwent preoperative stress testing and 1231 (29.4%) were positive. Comorbidities were significantly higher among patients undergoing CEA with preoperative stress test compared to those without stress testing. For patients with positive stress test undergoing CEA, there was a significant increase in postoperative MI (1.7% vs 0.6%; P <.001) and 90-day readmission rates (19.6% vs 15.8%; P =.003), but no significant change in postoperative stroke or congestive heart failure incidence. In 3-year follow-up after CEA, those with a positive stress test were more likely to undergo coronary artery bypass graft/percutaneous coronary intervention (adjusted hazard ratio [HR], 1.87; 95% confidence interval [CI], 1.42-2.27; P <.0001) and also exhibited a 28% increase in mortality (adjusted HR, 1.28; 95% CI, 1.03-1.58; P =.03) in follow-up compared to those patients with a negative preoperative stress test (Figure). Conversely, those patients with a negative stress test compared to no stress test undergoing CEA experienced a 14% reduction in follow-up mortality (adjusted HR, 0.86; 95% CI, 0.76-0.98; P =.02) despite no difference in in-hospital MI/stroke or follow-up coronary artery bypass graft/percutaneous coronary intervention (adjusted HR, 0.94; 95% CI, 0.78-1.14; P =.53).
Conclusion(s): Our study highlights that cardiac stress testing in appropriately selected patients can facilitate risk stratification and identify patients at higher risk of postoperative adverse cardiac events. Furthermore, judicious patient selection for elective CEA is warranted in patients with a positive preoperative stress test given the increased late mortality. [Formula presented]
Copyright
EMBASE:2024650331
ISSN: 1097-6809
CID: 5514382

Natural History and Long-term Follow-up of 890 Splenic Artery Aneurysms [Meeting Abstract]

Zhang, J C; Ratner, M; Harish, K; Speranza, G; Hartwell, A; Garg, K; Maldonado, T S; Sadek, M; Jacobowitz, G; Rockman, C
Objectives: Though splenic artery aneurysms (SAAs) are the most common visceral aneurysm, there is a paucity of literature on the natural history of SAAs. The objective of this study was to review the natural history of patients with SAA.
Method(s): This single-institution retrospective analysis studied all patients with SAA diagnosed by computed tomography imaging between 2015 and 2019, identified by our radiology database. Imaging, demographic, and clinical data was obtained via the electronic medical record.
Result(s): The cohort consists of 853 patients with 894 SAA; 693 were female (81.2%), with 37 (5.3%) of them of childbearing age (15-50 years). Mean age at diagnosis was 70.9 years (range, 28-100 years). Medical comorbidities included hypertension (70.2%), prior smoking (32.2%), and hypercholesterolemia (54.7%) (Table I). Imaging indications included abdominal pain (37.3%), unrelated follow-up (28.0%) and follow-up of a previously noted visceral artery aneurysm (8.6%). Mean diameter at diagnosis was 13.3 +/- 6.3 mm. Eighty-one patients (9.0%) had more than one SAA. Anatomical locations included the splenic hilum (36.0%), distal splenic artery (30.3%), mid splenic artery (23.9%), and proximal splenic artery (9.7%). Radiographically, the majority were saccular aneurysms (72.4%). Additional characteristics included calcification (88.5%) and thrombus (13.9%). Associated imaging findings included aortic atherosclerosis (58.7%), abdominal aortic aneurysms (7.0%), and additional visceral aneurysms (4.1%). One patient (a 38-year-old female) was initially diagnosed at the time of rupture of a 25-mm aneurysm; this patient underwent immediate endovascular intervention with no complications. Mean clinical follow-up among 812 patients was 4.1 +/- 4.0 years. Mean radiological follow-up among 514 patients was 3.8 +/- 6.8 years. Of these, 122 patients (23.7%) experienced growth, with mean growth of 2.5mm. Aneurysm growth rates for initial sizes <10 mm (n = 123), 10 to 19 mm (n = 353), 20 to 29 mm (n = 34), and >30 mm (n = 4) were 0.166 mm/y, 0.172 mm/y, 0.383 mm/y, and 0.246 mm/y, respectively. Of the entire cohort, 27 patients (3.2%) eventually underwent intervention (81.5% endovascular), with the most common indications including size/growth criteria (70.4%) and symptom development (18.5%). On multivariate analysis, only prior tobacco use (P =.028) was significantly associated with aneurysm growth. Data stratified by sex and childbearing age are presented in Table II.
Conclusion(s): The majority of SAAs in this cohort remained stable in size, with few patients requiring intervention over mean follow-up of 4 years. Current guidelines recommending treatment of asymptomatic aneurysms >30 mm appear appropriate given their slow progression. Despite societal recommendations for intervention for all SAAs among women of childbearing age, only a minority underwent intervention in this series, indicating that these recommendations may not be well known in the general medical community. [Formula presented] [Formula presented]
Copyright
EMBASE:2024650289
ISSN: 1097-6809
CID: 5514392

Renal transplant recipients undergoing endovascular abdominal aortic aneurysm repair have increased risk of perioperative acute kidney injury but no difference in late mortality: Presented at the 2022 Vascular Annual Meeting of the Society for Vascular Surgery; Boston, Massachusetts, June 15-18, 2022 [Meeting Abstract]

Chang, H; Veith, F J; Laskowski, I; Maldonado, T S; Butler, J R; Jacobowitz, G R; Rockman, C B; Zeeshan, M; Ventarola, D J; Cayne, N S; Lui, A; Mateo, R; Babu, S; Goyal, A; Garg, K
Objective: Renal transplant is associated with substantial survival advantage in patients with end-stage renal disease. However, little is known about the outcomes of renal transplant recipients (RTRs) after endovascular abdominal aortic aneurysm repair (EVAR). This study aimed to study the effect of renal transplant on perioperative outcomes and long-term survival after elective infrarenal EVAR.
Method(s): The Vascular Quality Initiative database was queried for all patients undergoing elective EVAR from 2003 to 2021. Functioning RTRs were compared with non-renal transplant recipients without a diagnosis of end-stage renal disease (non-RTRs). The outcomes included 30-day mortality, acute kidney injury (AKI), new renal failure requiring renal replacement therapy (RRT), endoleak, aortic-related reintervention, major adverse cardiac events, and 5-year survival. A logistic regression analysis was used to assess the association between RTRs and perioperative outcomes.
Result(s): Of 60,522 patients undergoing elective EVAR, 180 (0.3%) were RTRs. RTRs were younger (median, 71 years vs 74.5 years; P <.001), with higher incidence of hypertension (92% vs 84%; P =.004) and diabetes (29% vs 21%; P =.005). RTRs had higher median preoperative serum creatinine (1.3 mg/dL vs 1.0 mg/dL; P <.001) and lower estimated glomerular filtration rate (51.6 mL/min vs 69.4 mL/min; P <.001). There was no difference in the abdominal aortic aneurysm diameter and incidence of concurrent iliac aneurysms. Procedurally, RTRs were more likely to undergo general anesthesia with lower amount of contrast used (median, 68.6 mL vs 94.8 ml; P <.001) and higher crystalloid infusion (median, 1700 mL vs 1500 mL; P =.039), but no difference was observed in the incidence of open conversion, endoleak, operative time, and blood loss. Postoperatively, RTRs experienced a higher rate of AKI (9.4% vs 2.7%; P <.001), but the need for new RRT was similar (1.1% vs 0.4%; P =.15). There was no difference in the rates of postoperative mortality, aortic-related reintervention, and major adverse cardiac events. After adjustment for potential confounders, RTRs remained associated with increased odds of postoperative AKI (odds ratio, 3.33; 95% confidence interval, 1.93-5.76; P <.001) but had no association with other postoperative complications. A subgroup analysis identified that diabetes (odds ratio, 4.21; 95% confidence interval, 1.17-15.14; P =.02) is associated with increased odds of postoperative AKI among RTRs. At 5 years, the overall survival rates were similar (83.4% vs 80%; log-rank P =.235).
Conclusion(s): Among patients undergoing elective infrarenal EVAR, RTRs were independently associated with increased odds of postoperative AKI, without increased postoperative renal failure requiring RRT, mortality, endoleak, aortic-related reintervention, or major adverse cardiac events. Furthermore, 5-year survival was similar. As such, while EVAR may confer comparable benefits and technical success perioperatively, RTRs should have aggressive and maximally optimized renal protection to mitigate the risk of postoperative AKI. Keywords: End-stage renal disease, Endovascular abdominal aortic aneurysm, Multi-institutional study, Renal transplant, Renal transplant recipient, Vascular Quality Initiative database
Copyright
EMBASE:2024574649
ISSN: 1532-2165
CID: 5514402

Renal transplant recipients undergoing endovascular abdominal aortic aneurysm repair have increased risk of perioperative acute kidney injury but no difference in late mortality

Chang, Heepeel; Veith, Frank J; Laskowski, Igor; Maldonado, Thomas S; Butler, Jonathan R; Jacobowitz, Glenn R; Rockman, Caron B; Zeeshan, Muhammad; Ventarola, Daniel J; Cayne, Neal S; Lui, Aiden; Mateo, Romeo; Babu, Sateesh; Goyal, Arun; Garg, Karan
OBJECTIVE:Renal transplant is associated with substantial survival advantage in patients with end-stage renal disease. However, little is known about the outcomes of renal transplant recipients (RTRs) after endovascular abdominal aortic aneurysm repair (EVAR). This study aimed to study the effect of renal transplant on perioperative outcomes and long-term survival after elective infrarenal EVAR. METHODS:The Vascular Quality Initiative database was queried for all patients undergoing elective EVAR from 2003 to 2021. Functioning RTRs were compared with non-renal transplant recipients without a diagnosis of end-stage renal disease (non-RTRs). The outcomes included 30-day mortality, acute kidney injury (AKI), new renal failure requiring renal replacement therapy (RRT), endoleak, aortic-related reintervention, major adverse cardiac events, and 5-year survival. A logistic regression analysis was used to assess the association between RTRs and perioperative outcomes. RESULTS:Of 60,522 patients undergoing elective EVAR, 180 (0.3%) were RTRs. RTRs were younger (median, 71 years vs 74.5 years; P < .001), with higher incidence of hypertension (92% vs 84%; P = .004) and diabetes (29% vs 21%; P = .005). RTRs had higher median preoperative serum creatinine (1.3 mg/dL vs 1.0 mg/dL; P < .001) and lower estimated glomerular filtration rate (51.6 mL/min vs 69.4 mL/min; P < .001). There was no difference in the abdominal aortic aneurysm diameter and incidence of concurrent iliac aneurysms. Procedurally, RTRs were more likely to undergo general anesthesia with lower amount of contrast used (median, 68.6 mL vs 94.8 ml; P < .001) and higher crystalloid infusion (median, 1700 mL vs 1500 mL; P = .039), but no difference was observed in the incidence of open conversion, endoleak, operative time, and blood loss. Postoperatively, RTRs experienced a higher rate of AKI (9.4% vs 2.7%; P < .001), but the need for new RRT was similar (1.1% vs 0.4%; P = .15). There was no difference in the rates of postoperative mortality, aortic-related reintervention, and major adverse cardiac events. After adjustment for potential confounders, RTRs remained associated with increased odds of postoperative AKI (odds ratio, 3.33; 95% confidence interval, 1.93-5.76; P < .001) but had no association with other postoperative complications. A subgroup analysis identified that diabetes (odds ratio, 4.21; 95% confidence interval, 1.17-15.14; P = .02) is associated with increased odds of postoperative AKI among RTRs. At 5 years, the overall survival rates were similar (83.4% vs 80%; log-rank P = .235). CONCLUSIONS:Among patients undergoing elective infrarenal EVAR, RTRs were independently associated with increased odds of postoperative AKI, without increased postoperative renal failure requiring RRT, mortality, endoleak, aortic-related reintervention, or major adverse cardiac events. Furthermore, 5-year survival was similar. As such, while EVAR may confer comparable benefits and technical success perioperatively, RTRs should have aggressive and maximally optimized renal protection to mitigate the risk of postoperative AKI.
PMID: 36626957
ISSN: 1097-6809
CID: 5434342

Variations in Practice Patterns for Peripheral Vascular Interventions Across Clinical Settings

Haqqani, Maha H; Alonso, Andrea; Kobzeva-Herzog, Anna; Farber, Alik; King, Elizabeth G; Meltzer, Andrew J; Eslami, Mohammad H; Garg, Karan; Rybin, Denis; Siracuse, Jeffrey J
BACKGROUND:Peripheral vascular interventions (PVIs) for lower extremity peripheral artery disease have been increasing, particularly in the office-based setting. Our goal was to evaluate practice patterns for PVI by site of service using a contemporary real-world dataset. METHODS:The Vascular Quality Initiative PVI registry was queried from 2010-2021. Site of service was classified as hospital/inpatient, hospital/outpatient, and ambulatory/office-based center. Patient demographics, comorbidities, procedural details, and periprocedural outcomes were analyzed. RESULTS:There were 54,897 hospital/inpatient (43.2%), 64,105 hospital/outpatient (50.4%), and 8,179 ambulatory/office-based center (6.4%) PVI. When comparing the 2 outpatient settings, ambulatory/office-based center patients were older than hospital/outpatient (mean age 70.7 vs. 68.7 years), more often female sex (41.4% vs. 39.1%), never smokers (27.5% vs. 18.5%), primary Medicare (61.6% vs. 55.9%), nonambulatory (6.5% vs. 4.7%), less often with coronary artery disease (30.2% vs. 34.1%), chronic obstructive pulmonary disease (18.1% vs. 26.9%), congestive heart failure (13% vs. 17.2%), obesity (30.9% vs. 33.6%), and less often on a statin (71.4% vs. 76.1%) (P < 0.001). Ambulatory/office-based center procedures were more likely for claudication (60.1% vs. 55.8%), more often involved femoro-popliteal (73.1% vs. 64.6%) and infrapopliteal (36.7% vs. 24.3%), and less often iliac interventions (24.1% vs. 33.6%) (P < 0.001).Overall, atherectomy was used in 14.2% of hospital/inpatient, 19.4% of hospital/outpatient, and 63.4% of ambulatory/office-based center procedures. Stents were used in 41.8% of hospital/inpatient, 45.1% of hospital/outpatient, and 48.8% of ambulatory/office-based center procedures. However, stent grafts were used in 12.5% of hospital/inpatient, 8.8% of hospital/outpatient, and only 1.3% of ambulatory/office-based center procedures. On multivariable analysis, compared with hospital/inpatient, atherectomy use was associated with ambulatory/office-based center setting (Odds ratio 10.9, 95% confidence interval 10.3-11.5, P < 0.001) and hospital/outpatient setting (Odds ratio 1.57, 95% confidence interval 1.51-1.62, P < 0.001). Periprocedure complications including hematoma requiring intervention (0.3%), any stenosis/occlusion (0.2%), and distal embolization (0.6%) were quite low across all settings. CONCLUSIONS:There are substantial variations in patient populations, procedural indications, and types of interventions undertaken during PVI across different locations. Ambulatory/office-based procedures more commonly treat claudicants, use atherectomy, and less often use stent grafts. Further research is warranted to investigate long-term trends in practice patterns and long-term outcomes, for PVI in the ever-expanding ambulatory/office-based setting.
PMID: 36642163
ISSN: 1615-5947
CID: 5464702