Abstract WP341: Difference in Acute Ischemic Post Thrombolytic Stroke Outcomes in Pre Comprehensive and Post Comprehensive Status: Single Center Experience

Stroke ◽  
2016 ◽  
Vol 47 (suppl_1) ◽  
Author(s):  
Vishal B Jani ◽  
Achint Patel ◽  
Jillian Schurr ◽  
Erin Shell ◽  
Julie Bey ◽  
...  
Keyword(s):  
Hospital Stay ◽  
Secondary Outcome ◽  
Rank Test ◽  
Stroke Severity ◽  
Complication Rates ◽  
Single Center ◽  
Stroke Treatment ◽  
Significant Difference ◽  
Multivariable Regression ◽  
Iv Tpa

Background: In last decade there is a significant change in stroke care especialy with newer data for ischemic stroke treatment there is a movement to obtain comprehensive stroke center certification (CSCC) to provide enhanced complex care for stroke. This study aims to assess the single center quality matrix assessment pre and post CSC status Methods: We reviewed single center cohort of IV tPA (tissue plasminogen activator) in-between year 2010 to 2014 at sparrow health system in mid Michigan region. This cohort was dichotomized in pre CSCC and post CSCC era. Stroke quality matrics data was collected for these patients. Severity of stroke was categorized in mild-moderate vs moderate-severe based on NIH stroke scale (NIHSS) scale. Primary out come for this study was any complication, which is composite end point of in-hospital mortality, and hemorrhage and secondary outcome was hospital stay. Chi square, student’s t test and wilcoxon sum rank test was used to compare both groups. Multivariable regression models were utilized to calculate odd ratios after adjusting with stroke severity. Results: Cohort of IV tPA was identified in-between year 2010 to 2014 (332 hospitalizations off which 241 were pre CSCC and 91 were Post CSCC ). In- hospital complication was lower after receiving CSCC (9.89% vs. 21.99%; p:0.011). In multivariable regression analysis the trend for in hospital complication persisted [Adjusted Odds ratio (OR):0.43–95%confidence-Interval(CI):0.20-0.93–p:0.032] but there was no significant difference in hospital stay (Median days 5 vs. 5; P:673) Conclusion: There is a clear and persistent trend of low in-hospital complication rates after acquiring CSCC quality matrics.

scholarly journals 816 Managing Acute Appendicitis During the First Wave of the COVID-19 Pandemic: A Single-Centre Retrospective Study

2021 ◽  
Vol 108 (Supplement_6) ◽  
Author(s):  
A Lotfallah ◽  
A Aamery ◽  
G Moussa
Keyword(s):  
Acute Appendicitis ◽  
Hospital Stay ◽  
Statistical Significance ◽  
Length Of Hospital Stay ◽  
Interquartile Range ◽  
Secondary Outcome ◽  
Complication Rates ◽  
Alvarado Score ◽  
Significant Difference

Abstract Introduction The COVID-19 pandemic provoked a change to normal surgical practice and led to a higher proportion of acute appendicitis (AA) patients being treated conservatively with antibiotics. We aim to analyse patients presenting with AA during the first wave of the pandemic, comparing surgically and conservatively managed patients. Method All patients presenting to our centre with AA between March and July 2020 were included. Six-month follow-up data was collected retrospectively using electronic records. Patients were categorised into surgically and conservatively managed groups. The primary outcome was the complication rate (post-operative complications vs failure of antibiotic treatment) and the secondary outcome was length of hospital stay. Results Fifty-seven patients (n = 57) were admitted with AA, 45.6% (n = 26) managed conservatively compared to 54.4% (n = 31) treated surgically. Higher complication rates were observed amongst the conservatively managed group, although not statistically significant (16% vs 35%; p = 0.131). There was no significant difference in length of hospital stay observed between the two groups (surgical: median, 2; interquartile range, 2-3 vs conservative: median, 3; interquartile range, 2-4). White cell count (WCC) and Alvarado score were higher on admission in the surgical group with statistical significance (p = 0.012 and p = 0.028 respectively). Conclusions Stratification criteria, such as Alvarado score and WCC may identify patients more suitable for conservative management. Longer term follow-up will be carried out, which may alter complication rates in either group. We suggest all patients treated conservatively should undergo computerised tomography (CT) to exclude complicated appendicitis. Further UK-based studies will add to the evidence-base surrounding management of AA during the COVID-19 pandemic.

Abstract 87: Centralization of Acute Stroke Treatment was Associated With a Reduction in Length of Acute Hospital Stay

Stroke ◽  
2017 ◽  
Vol 48 (suppl_1) ◽  
Author(s):  
Sidsel Hastrup ◽  
Soeren Paaske Johnsen ◽  
Paul von Weitzel-Mudersbach ◽  
Claus Ziegler Simonsen ◽  
Niels Hjort ◽  
...  
Keyword(s):  
Hospital Stay ◽  
Acute Stroke ◽  
Clinical Care ◽  
Stroke Care ◽  
Acute Hospital ◽  
Study Cohort ◽  
Stroke Severity ◽  
Acute Stroke Care ◽  
Stroke Treatment ◽  
Iv Tpa

Introduction: In 2012 a centralization and specialization of stroke services was implemented in Central Region Denmark (CRD) (n= 1.3 million inhabitants). It implied that acute stroke care was to be provided at only 2 units with re-vascularization therapy. Objective: The impacts on length of acute hospital stay (AHS), rate of thrombolysis (IV tPA), evidence-based clinical care and mortality. Methods: Population-based before-and-after registry study. The study cohort included all stroke cases in Denmark, with patients outside CRD being used as comparison to account for general changes in stroke care. The period before (May 2011- April 2012) was compared to after (May 2013 - April 2014) using regression methods, including difference-in-differences (DID) analysis. Potential confounders included age, gender, civil status, previous strokes, diabetes, atrial fibrillation, smoking, alcohol, stroke severity, hypertension and type of stroke. Results: Baseline data in Figure 1. Median length of AHS (days) in CRD decreased from 5 (IQR 7) to 2 (3) vs. from 5 (9) to 5 (8) in the rest of Denmark. IV tPA rates increased from 16% (95CI 14-17) to 19% (17-21) of all acute ischemic strokes in CRD and from 9% (8-10) to 14% (13-15) in the rest of Denmark (DID RR 0.77 (0.66-0.91)). All-or-none rates of 11 process performance measures of in-hospital care increased from 51% (49-53) to 63% (61-65) in CRD vs. 49% (48-50) to 60% (59-61) in the rest of Denmark (DID RR 0.99 (0.93-1.05)). Adjusted 30-days mortality rate decreased non-significantly and comparable to the rest of the country; OR 0.97 (0.71-1.32) vs. OR 0.91 (0.77-1.07) (DID OR 1.03 (0.75-1.41)). Conclusions: Centralization of acute stroke care was associated with a significant reduction in length of AHS when compared to the development in the rest of Denmark. The use of IV tPA and the quality of acute stroke care also improved, but the trend was not different from the rest of Denmark. No changes in the adjusted 30-days mortality were observed.

scholarly journals Effect of Social Support and Marital Status on Perceived Surgical Effectiveness and 30-Day Hospital Readmission

2017 ◽  
Vol 7 (8) ◽  
pp. 774-779 ◽  
Author(s):  
Owoicho Adogwa ◽  
Aladine A. Elsamadicy ◽  
Victoria D. Vuong ◽  
Ankit I. Mehta ◽  
Raul A. Vasquez ◽  
...  
Keyword(s):  
Social Support ◽  
Hospital Stay ◽  
Marital Status ◽  
Spine Surgery ◽  
Patient Reported Outcomes ◽  
Complication Rates ◽  
Readmission Rates ◽  
Outcomes Measures ◽  
Significant Difference ◽  
Patient Reported

Study Design: Retrospective cohort review. Objective: To determine whether higher levels of social support are associated with improved surgical outcomes after elective spine surgery. Methods: The medical records of 430 patients (married, n = 313; divorced/separated/widowed, n = 71; single, n = 46) undergoing elective spine surgery at a major academic medical center were reviewed. Patients were categorized by their marital status at the time of surgery. Patient demographics, comorbidities, and postoperative complication rates were collected. All patients had prospectively collected outcomes measures and a minimum of 1-year follow-up. Patient reported outcomes instruments (Oswestry Disability Index, Short Form–36, and visual analog scale–back pain/leg pain) were completed before surgery, then at 1 year after surgery. Results: Baseline characteristics were similar in all cohorts. There was no statistically significant difference in the length of hospital stay across all 3 cohorts, although “single patients” had longer duration of in-hospital stays that trended toward significance (single 6.24 days vs married 4.53 days vs divorced/separated/widowed 4.55 days, P = .05). Thirty-day readmission rates were similar across all cohorts (married 7.03% vs divorced/separated/widowed 7.04% vs single 6.52%, P = .99). Additionally, there were no significant differences in baseline and 1-year patient reported outcomes measures between all groups. Conclusions: Increased social support did not appear to be associated with superior short and long-term clinical outcomes after spine surgery; however, it was associated with a shorter duration of in-hospital stay with no increase in 30-day readmission rates.

Abstract P201: Octogenarian and Nonagenarian Outcomes Among Acute Ischemic Stroke Patients

Stroke ◽  
2021 ◽  
Vol 52 (Suppl_1) ◽  
Author(s):  
RAJAN R GADHIA ◽  
Farhaan S Vahidy ◽  
Tariq Nisar ◽  
Destiny Hooper ◽  
David Chiu ◽  
...  
Keyword(s):  
Ischemic Stroke ◽  
Acute Stroke ◽  
Acute Ischemic Stroke ◽  
Combined Treatment ◽  
Stroke Patients ◽  
Stroke Treatment ◽  
Intravenous Tissue Plasminogen Activator ◽  
Significant Difference ◽  
Acute Stroke Treatment ◽  
Iv Tpa

Objective: Most acute stroke treatment trials exclude patients above the age of 80. Given the clear benefit of revascularization with intravenous tissue plasminogen activator (IV tPA) and mechanical thrombectomy (MT), we sought to assess functional outcomes in patients treated above the age of 80. Methods: We conducted a review of all patients admitted to Houston Methodist Hospital between January 2019 and August 2020 with an acute ischemic stroke (AIS) presentation[MOU1] for whom premorbid, discharge, and 90 day modified Rankin Scale scores were available. Patients were categorized by acute stroke treatment (IV tPA, MT, both or none[MOU2] ). mRS values were assessed during admission prior to discharge and at 90 days post stroke event. A delta mRS (Discharge vs. 90-day [MOU3] ) was defined and grouped as no change, improved, or worsened to assess overall functional disability in regards to the index stroke presentation. Results: A total of 865 patients with AIS presentation were included, of whom 651 (75.3%) were <80 years and 214 (24.7%) were > 80 years of age at presentation. A total of 208 patients received IV tPA, 176 underwent revascularization with MT only, 71 had both treatments, and 552 had no acute intervention. In patients >80 yrs who had no acute stroke intervention. mRS improvement was noted in 71.4% compared to 54.1% observed in those patients <80 years. Among patients who received IV tPA, 81.5% of > 80 years improved vs. 61.6% in the younger cohort. A similar trend was noted in the MT and combined treatment groups (76.2% vs. 71.2% and 78.6% vs. 79.3%, respectively). Conclusion: Based on our cohort of acute stroke patients, there was no significant difference in outcomes (as measured by delta mRS) for octogenarians and nonagenarians when compared to younger patients. There was a trend towards improvement in the elderly patients. Chronological age by itself may be an insufficient predictor of functional outcome among stroke patients and age cutoffs for enrollment of patients in acute stroke trials may need additional considerations.

Abstract TP372: Outcomes of the Extended Ischemic Stroke Treatment Window

Stroke ◽  
2020 ◽  
Vol 51 (Suppl_1) ◽  
Author(s):  
Michele J Patterson ◽  
Tracy Moore ◽  
Paula Cline ◽  
Lee Birnbaum
Keyword(s):  
Ischemic Stroke ◽  
Clinical Practice ◽  
Clinical Practice Guidelines ◽  
Practice Guidelines ◽  
Community Education ◽  
Stroke Severity ◽  
Complication Rates ◽  
Stroke Treatment ◽  
Stroke Disability ◽  
Treatment Window

Background: After clinical practice guidelines extended the mechanical endovascular reperfusion [MER] window, our Comprehensive Stroke Program expanded its stroke alert [SA] to include last known well [LKW] 6-24 hours [h]. Expansion included implementation of a standardized large vessel screen, RAPID brain imaging software, revised algorithm, EMS and community education, and regional transfer guidelines. Purpose: Evaluate outcomes of the extended window [EW] for ischemic stroke treatment. Method: We reviewed ischemic strokes over a 2 year period and categorized them into two groups: 2017 pre-guideline [PG] and 2018 EW post-guideline [PostG]. Each group was divided into all-MERs and MERs 6-24h. Groups were compared by LKW, NIHSS, TICI scores, complications, discharge [DC] disposition and Modified Rankin Score [mRS] at DC and 90 days [90d]. Outcomes were evaluated to identify the EW impact. Results: Of 744 strokes reviewed, 365 were PG and 379 were EW PostG. LKW 6-24h was greater PostG [22%=PG versus [v] 30%=EW], in all-MERs [19%=PG v 31%=EW] and MERs 6-24h [69%=PG v 83%=EW]. Stroke severity [NIHSS>7] was higher PostG [41%=PG v 45%=EW], in all-MERs [88%=PG v 91%=EW] and MERs 6-24h [85%=PG v 96%=EW]. MER treatment rates increased PostG [13%=PG v 17%=EW]. Post-MER TICI 2b/3 reperfusion rates were higher PostG in all-MERs [63%=PG v 77%=EW] and MERs 6-24h [38%=PG v 71%=EW]. Any complication was lower PostG [27%=PG v 22%=EW] with higher complication rates in MERs 6-24h [15%=PG v 17%=EW]. More patients were DC home PostG [42%=PG v 46%=EW], in all-MERs [25%=PG v 30%=EW], and MERs 6-24h [8%=PG v 29%=EW]. mRS 0-2 at DC was increased PostG [20%=PG v 29%=EW], in all-MERs [12%=PG v 27%=EW], and MERs 6-24h [8%=PG v 34%=EW]. mRS at 90d was increased PostG for all-MERs [25%=PG v 34%=EW] with decreased deaths [15%=PG v 10%=EW]. Conclusion: The EW has increased patients treated and improved overall outcomes. Patients arriving with LKW 6-24h has increased along with stroke severity. Reperfusion rates improved and overall complications were lower, however higher rates were seen in MERs 6-24h. Patients treated in the EW had reductions in post stroke disability, increases in DC to home, and improvements in mRS at DC and 90d.

Abstract 202: The NIH Stroke Scale Can Miss Improvement After IV tPA For Acute Ischemic Stroke

2015 ◽  
Vol 8 (suppl_2) ◽  
Author(s):  
Elisabeth B Marsh ◽  
Erin Lawrence ◽  
Rafael H Llinas
Keyword(s):  
Ischemic Stroke ◽  
Acute Ischemic Stroke ◽  
Post Treatment ◽  
Functional Improvement ◽  
Stroke Severity ◽  
Post Discharge ◽  
Significant Difference ◽  
The Mean ◽  
Iv Tpa

Background and Objective: The National Institute of Health Stroke Scale (NIHSS) is the most commonly used metric to evaluate stroke severity and improvement following intervention. Despite its advantages as a rapid, reproducible screening tool, it may be too insensitive to adequately capture functional improvement following treatment. We evaluated the difference in rate of improvement by previously accepted criteria (change of ≥4 NIHSS points) versus physician documentation in patients receiving IV tissue plasminogen activator (tPA) for acute ischemic stroke. Methods: Prospectively collected data on all patients receiving IV tPA over a 15 month period were retrospectively reviewed. NIHSS 24 hours post-treatment and on discharge were extrapolated based on examination and compared to NIHSS on presentation. NIHSS scores at post-discharge follow-up were also recorded. Two reviewers evaluated the medical record and determined improvement based on physician documentation. Using tests of proportion, ‘significant improvement’ by NIHSS was compared to physician documentation at each time point. Results: Forty-one patients were treated with IV tPA. The mean admission NIHSS was 8.6 and improved to 6.4 24 hours post-tPA. Twenty-nine of 41 patients (79%) were “better” by documentation; however only 11/41 (27%) met NIHSS criteria for improvement (p compared to documentation <0.001). On discharge, 20/41 patients (49%) met NIHSS criteria for improvement; however a significant difference between physician documentation remained (p=0.04). The mean post-discharge follow-up NIHSS score was 2.0. 20/21 patients (95%) were “better” compared to 16/21 (76%) meeting NIHSS criteria (p=0.08). Conclusion: The NIHSS may inadequately capture functional improvement post-treatment, especially in the days immediately following intervention.

scholarly journals Cryosclerosis. Az elfelejtett endovénás cryoablatio a vena saphena magna elégtelenségének kezelésében. Egy prospektív összehasonlító vizsgálat középtávú eredményei

2016 ◽  
Vol 157 (50) ◽  
pp. 1994-2001
Author(s):  
István Bence Bálint ◽  
Ákos Farics ◽  
László Vizsy ◽  
Eszter Vargovics ◽  
Renáta Bálint ◽  
...  
Keyword(s):  
Saphenous Vein ◽  
Great Saphenous Vein ◽  
Clinical Severity ◽  
Secondary Outcome ◽  
Rank Test ◽  
Clinical Failure ◽  
Severity Scores ◽  
Significant Difference ◽  
Vena Saphena Magna ◽  
Occlusion Rate

Introduction: Cryosclerosis was introduced by Milleret and Le Pivert in the 1980s. Method: A prospective non-randomized comparative study has been performed on initial 96 patients. 48 patients were treated by cryosclerosis and the others received conventional stripping. 52 cases were analyzed for 2-years. The primary end-point of the study was to determine the occlusion rate of cryosclerosis. The clinical failure, the improvement in the Clinical Etiologic Anatomic Pathophysiologic classification and Venous Clinical Severity Scores were analyzed as secondary outcome. Results: Total recanalization of the great saphenous vein causing clinical failure was observed in one case (4%). The reopening of the great saphenous vein was observed in 4 limbs (15%) that did not cause the incompetence of the trunk. The occlusion rate was 81%. Recurrent varicosity was observed by 35% and 42% of the patients in the cryosclerosis and stripping groups respectively. There was no significant difference between the groups (log rank test, p = 0.391). There was significant improvement in both the Clinical Etiologic Anatomic Pathophysiologic classification and Venous Clinical Severity Scores in each group without remarkable differences observed between the groups either at baseline or on the mid-term. Conclusions: Cryosclerosis seems to be effective in the remodeling of the great saphenous vein. The method has no remarkable mid-term clinical advantages over classical stripping so far. Orv. Hetil., 2016, 157(50), 1994–2001.

scholarly journals Mechanical thrombectomy for basilar artery occlusion: efficacy, outcomes, and futile recanalization in comparison with the anterior circulation

2019 ◽  
Vol 11 (12) ◽  
pp. 1174-1180 ◽  
Author(s):  
Thomas Raphael Meinel ◽  
Johannes Kaesmacher ◽  
Panagiotis Chaloulos-Iakovidis ◽  
Leonidas Panos ◽  
Pasquale Mordasini ◽  
...  
Keyword(s):  
Basilar Artery ◽  
Mechanical Thrombectomy ◽  
Artery Occlusion ◽  
Favorable Outcome ◽  
Basilar Artery Occlusion ◽  
Secondary Outcome ◽  
Stroke Severity ◽  
Anterior Circulation ◽  
Link Type ◽  
Significant Difference

BackgroundPerforming mechanical thrombectomy (MT) in patients with basilar artery occlusion (BAO) is currently not evidence-based.ObjectiveTo compare patients’ outcome, relative merits of achieving recanalization, and predictors of futile recanalization (FR) between BAO and anterior circulation large vessel occlusion (ACLVO) MT.MethodsIn the multicenter BEYOND-SWIFT registry (NCT03496064), univariate and multivariate (displayed as adjusted Odds Ratios, aOR and 95% confidence intervals, 95%-CI) outcome comparisons between BAO (N=165) and ACLVO (N=1574) were performed. The primary outcome was favorable outcome at 90 days (modified Rankin Scale, mRS 0-2). Secondary outcome included mortality, symptomatic intracranial hemorrhage (sICH) and FR. The relative merits of achieving successful recanalization between ACLVO and BAO were evaluated with interaction terms.ResultsMT in BAO was more often technically effective and equally safe in regards to mortality and sICH when compared to ACLVO. When adjusting for baseline differences, there was no significant difference between BAO vs ACLVO regarding rates of favorable outcome (aOR 0.986, 95%-CI 0.553 – 1.758). However, BAO were associated with increased rates of FR (aOR 2.146, 95%-CI 1.267 – 3.633). Predictors for FR were age, stroke severity, maneuver count and intracranial stenting. No significant heterogeneity on the relative merits of achieving successful recanalization on several outcome parameters were observed when comparing BAO and ACLVO.ConclusionsIn selected patients, similar outcomes can be achieved in BAO and ACLVO patients treated with MT. Randomized controlled trials comparing patient selection and interventional strategies seem warranted to avoid FR.Trial registration numberNCT03496064

scholarly journals Impact of COVID-19 on stroke admissions, treatments, and outcomes at a comprehensive stroke centre in the United Kingdom

2020 ◽  
Author(s):  
Nishita Padmanabhan ◽  
Indira Natarajan ◽  
Rachel Gunston ◽  
Marko Raseta ◽  
Christine Roffe
Keyword(s):  
National Institutes Of Health ◽  
University Hospital ◽  
Stroke Severity ◽  
Stroke Patients ◽  
Stroke Treatment ◽  
Patient Demographics ◽  
The United Kingdom ◽  
Significant Difference ◽  
Ischaemic Attack ◽  
Provision Of Care

Abstract Introduction The coronavirus disease (COVID-19) pandemic has changed routine clinical practice worldwide with major impacts on the provision of care and treatment for stroke patients. Methods This retrospective observational study included all patients admitted to the Royal Stoke University Hospital in Stoke-on-Trent, UK, with a stroke or transient ischaemic attack between March 15th and April 14th, 2020 (COVID). Patient demographics, characteristics of the stroke, treatment details and logistics were compared with patients admitted in the corresponding weeks in the year before (2019). Results There was a 39.5% (n = 101 vs n = 167) reduction in admissions in the COVID cohort compared with 2019 with more severe strokes (median National Institutes of Health Stroke Scale (NIHSS) 7 vs 4, p = 0.02), and fewer strokes with no visible acute pathology (21.8 vs 37.1%, p = 0.01) on computed tomography. There was no statistically significant difference in the rates of thrombolysis (10.9 vs 13.2%, p = 0.72) and/or thrombectomy (5.9 vs 4.8%, p = 0.90) and no statistically significant difference in time from stroke onset to arrival at hospital (734 vs 576 min, p = 0.34), door-to-needle time for thrombolysis (54 vs 64 min, p = 0.43) and door-to-thrombectomy time (181 vs 445 min, p = 0.72). Thirty-day mortality was not significantly higher in the COVID year (10.9 vs 8.9%, p = 0.77). None of the 7 stroke patients infected with COVID-19 died. Conclusions During the COVID-19 pandemic, the number of stroke admissions fell, and stroke severity increased. There was no statistically significant change in the delivery of thrombolysis and mechanical thrombectomy and no increase in mortality.

scholarly journals A Comparative Analysis of Short Term Postoperative Complications in Outpatient vs. Inpatient Total Ankle Arthroplasty

2018 ◽  
Vol 3 (3) ◽  
pp. 2473011418S0042 ◽  
Author(s):  
Ashish Shah ◽  
Henry DeBell ◽  
Chandler Tedder ◽  
Zachariah Pinter ◽  
Sameer Naranje ◽  
...  
Keyword(s):  
Pulmonary Embolism ◽  
Renal Failure ◽  
Hospital Stay ◽  
Operating Room ◽  
Ankle Arthrodesis ◽  
Total Ankle Arthroplasty ◽  
Inpatient Setting ◽  
Complication Rates ◽  
Ankle Arthroplasty ◽  
Significant Difference

Category: Ankle Introduction/Purpose: Ankle arthritis is a potentially debilitating disease with approximately 50,000 cases diagnosed annually. Once conservative management fails, surgical options for these patients include total ankle arthroplasty (TAA) and ankle arthrodesis. Younger, more active patients may prefer TAA as it may allow better ankle mobility compared to ankle arthrodesis. TAA has historically been performed in the inpatient setting with a one- to two-night postoperative hospital stay. Outpatient surgeries are gaining popularity due to their cost effectiveness, decreased length of hospital stay, and convenience. Therefore, it is important to evaluate the safety of specific procedures in the outpatient setting compared to the inpatient setting. This study evaluates the complication rates in inpatient vs. outpatient TAA. Methods: Our team conducted a retrospective analysis of data from 591 patients receiving inpatient and outpatient TAA from the NSQIP database. This database contains de-identified patient data and allows retrospective analyses to be performed based on data they have extracted from over 400 hospitals. Demographic information was recorded including age, sex, weight, height, and race. Thirty-day postoperative complication rates were compared between 66 outpatients and 535 inpatients. Frequencies of the following complications were analyzed: wound complications, pneumonia, hematologic complications (pulmonary embolism and deep vein thrombosis), renal failure, stroke, and return to the operating room within 30 days. The inpatient and outpatient groups were compared using chi-squared tests for categorical variables and Wilcoxon rank-sum tests for continuous variables. Results: 591 total patients were identified that underwent TAA. 66 patients (11.1%) were treated as outpatients and 525 (88.8%) as inpatients. Inpatient TAA had a significantly higher mean operation time (161 min vs 148 min) and a significant difference in length of total hospital stay (2.3 days vs 1.1 days). Inpatients had higher rates of superficial incisional surgical site infection (SSI) (0.57% vs 0%), deep SSI (0.19 % vs 0%), organ/space SSI (0.19% vs 0%), pneumonia (0.38% vs 0%), and return to the operating room (0.76% to 0%). However, no significant differences were found in complication rates between inpatient and outpatient groups. There were no occurrences of acute renal failure, wound disruption, pulmonary embolism, stroke, or DVT/thrombophlebitis for inpatients or outpatients. Conclusion: We found no significant difference between inpatient vs. outpatient TAA. Incidental differences we found were that inpatients were significantly more likely to be older in age, diagnosed with diabetes, and inpatients had longer operative times. Our results suggest that inpatients are more likely, but not significantly, to have a higher occurrence of complications and return to the OR. Therefore, this study suggests that outpatient TAA is safe and may be a superior option for the correct patient population. Further investigation is warranted to verify these conclusions.

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