Ambulatory Surgery Center Research Articles

The effect of dexmedetomidine on emergence delirium of postanesthesia events in pediatric department: A systematic review and meta-analysis of randomized controlled trials.

Emergence delirium (ED) is a common occurrence in pediatric postanesthesia events, leading to negative outcomes. Dexmedetomidine (DEX), as an anesthesia adjuvant, has shown promise in preventing ED in adult surgeries, and it has been increasingly used in pediatric surgical settings. However, its effectiveness in other postanesthesia events, such as MRI examinations and ambulatory surgery centers, remains unclear. This meta-analysis aims to assess the safety and efficacy of DEX in preventing ED in various pediatric postanesthesia events beyond surgery. Prospective randomized controlled trials were searched in Pubmed, Web of Science, and EBSCO until October 13, 2023. Comparisons were made between DEX and other sedatives or analgesics in different postanesthesia events (including surgery operations, the examination of MRI, day surgery, and invasive action). Subgroup analyses were conducted based on drug delivery methods, medication timing, DEX dosages, use of analgesics, event types, and recovery time. A total of 33 trials involving 3395 patients were included. DEX significantly reduced the incidence of ED (odds ratios [OR] = 0.23, 95% confidence interval [CI]: 0.19-0.27, I2 = 37%, P < .00001). Intranasal delivery of DEX was the most effective (OR 0.18, 95% CI: 0.10-0.32, P < .00001, I2 = 0%). DEX also showed benefits in day surgery and mask insertion events (OR 0.30, 95% CI: 0.14-0.26, P = .001, I2 = 0%). DEX demonstrates superior efficacy in preventing ED in pediatric postanesthesia events compared to other sedatives and analgesics. Its use is recommended in various settings for its safety and effectiveness in managing ED.

Interfacility Competition and its Impact on Cost of Carpal Tunnel Release.

Carpal tunnel release (CTR) is the most common hand surgery procedure, but little is known about how healthcare market characteristics influence cost. The objective of this study was to understand the association of healthcare market competition and facility availability on out-of-pocket and total insurer payments for patients undergoing CTR. This retrospective cross-sectional study used a national sample of private insurance claims from 2015-2020. Adults who had CTR were included, while acute or inpatient CTRs, or lacking geographical information were excluded. Linear regression was applied to investigate the impact of the healthcare market competition and facility availability (ambulatory surgery center (ASC), hospital outpatient departments (HOPD), outpatient clinics) on the out-of-pocket expenses and total insurer payment. Market competition was measured using the Herfindahl-Hirschman Index. Of 119,828 patients, 76% underwent open CTR. The most competitive hospital markets were HOPDs and ASCs, respectively. As HOPD competition decreased, out-of-pocket expenses and total insurer payment decreased significantly. As ASC competition decreased, only total insurer payments decreased significantly. CTRs performed in outpatient clinics increased slightly over time. However, HOPDs remained the most common location until 2020 when their popularity was similar to ASCs. Finally, out-of-pocket expenses increased significantly whereas total insurer payments did not change significantly throughout the study period. This study found decreased healthcare market competition was not associated with increased CTR costs, suggesting that costs are complex and multifactorial. To reduce healthcare costs, this study supports the movement of CTRs to clinic and ASCs.

Since the COVID-19 pandemic, approximately 90% of elective anesthetics have been ambulatory: A retrospective analysis of statewide data in Florida from 2010 through 2022

BackgroundWhen the vast majority (e.g., ≈90%) of a specialty's elective (scheduled) care is ambulatory (i.e., length of stay 0 or 1 night), the administrative, clinical, and economic policy implications are profound. We examined the progressive shift of elective anesthetics in Florida from inpatient to ambulatory, from the first quarter of 2010 through the fourth quarter of 2022. We were particularly interested in the most recent data following the lifting of COVID-19 restrictions on elective surgery in the state. MethodsThis retrospective cohort study included major therapeutic and major diagnostic procedures with >0 American Society of Anesthesiologists base units in the state of Florida inpatient and ambulatory surgery databases. The last 8 quarters of these operating room anesthetic data corresponded to the end of restrictions on elective surgery in Florida due to the COVID-19 pandemic. Our goal was to determine whether the overall mean percentage of cases with 0- or 1-day lengths of stay has reached 90% since the lifting of pandemic restrictions. Numbers of cases over periods of at least four weeks tend to follow normal distributions. Therefore, we analyzed the N = 8 quarters of cases from 2021 to 2022 using Student's t-test. The study was performed when there were N = 8 quarters available from the Florida healthcare databases. ResultsThere were overall 22,584,752 surgical cases studied. The percentages of elective anesthetics with length of stay ≤1-day increased progressively from 2010 through 2020. Among the eight successive quarters since the end of pandemic-related elective surgery restrictions, the percentage of elective cases with length of stay 0- or 1 day was stable, averaging 90% (95% two-sided confidence interval 89.4% to 90.3%). ConclusionSince the COVID-19 pandemic, the mean quarterly percentage of elective surgery cases with anesthesia in Florida that were ambulatory has been reliably ≈90%. Implications include value in expecting overnight post-anesthesia care unit stay in ambulatory surgery centers and scheduling and sequencing cases based on post-anesthesia care unit capacity. Furthermore, because the vast majority (i.e., ≈90%) of cases would be excluded (i.e., not involve hospital admission for at least 2 midnights), there is a minimal role that risk-adjusted hospital length of stay and mortality can have in evaluating anesthesia department overall quality and economic effectiveness.

Trends in payments for facility and surgeon professional fees for shoulder surgeries performed at ambulatory surgery centers

It has previously been demonstrated that utilization of ambulatory surgery centers (ASCs) results in cost savings and improved outcomes. Despite these benefits, Medicare reimbursement for professional fees at ASCs are decreasing over time. In this study, we sought to analyze the discrepancy between facility fee and professional fee reimbursements for ASCs by Medicare for common shoulder procedures over time. We hypothesized that professional fees for shoulder procedures would decrease over the study period while facility fees kept pace with inflation. Current Procedural Terminology (CPT) codes were used to identify shoulder specific procedures approved for ASCs by Centers for Medicare and Medicaid Services (CMS). Procedures were grouped into arthroscopic and open categories. Publicly available data from CMS was accessed via the Medicare Physician Fee Schedule Lookup Tool and used to determine professional fee payments from 2018-2024. Additionally, Medicare ASC Payment Rates files were accessed to determine facility fee reimbursements to ASCs from 2018-2024. Descriptive statistics were used to calculate means and percent change over time. Compound annual growth rates (CAGR) were calculated and discrepancies in inflation were corrected for using the Consumer Price Index. The Benjamini and Hochberg method was used to correct P values in the setting of multiple comparisons. A total of 33 common shoulder procedures were included for analysis (10 arthroscopic codes and 23 open codes). Reimbursements for facility fees have remained significantly higher than corresponding professional fees for both open and arthroscopic procedures (p<0.01). On average, facility fee reimbursements for common shoulder surgeries have risen on an annual basis in a manner consistent with inflation (p=0.838). However, professional fees for these procedures have experienced a nearly uniform decline over the study period both nominally and in inflation-adjusted dollars (p=0.064 and p=0.005, respectively). Facility fee payments for outpatient approved shoulder surgeries have matched or outpaced inflation. Over the same time period, professional fee reimbursements for surgeons are consistently decreasing, both in absolute and inflation-adjusted dollars. Reform to the physician fee schedule is necessary to ensure that Medicare patients retain access to high-quality physician care.

Autograft and Allograft Anterior Cruciate Ligament Reconstruction in Patients Older Than 40 Years Have Similar Short-Term Patient-Reported Outcomes With Greater Rates of Anterior Cruciate Ligament Graft Failure in Patients Who Receive Allograft

PurposeThe purpose of this study was to evaluate short-term patient-reported outcomes (PROs) in patients aged 40 and older after primary ACLR between patients that received allograft or autograft. Secondary aims included assessing the effect of pre-existing osteoarthritis on short-term PROs. MethodsA retrospective review of an ambulatory surgery center’s electronic medical record was conducted for patients who underwent primary ACLR between 2009 and 2022. Patients aged younger than 40, those who underwent index revision procedures and/or concomitant ligament repair/reconstructions, and those with incomplete baseline or short-term (1- or 2-year) KOOS scores were excluded. Allograft and autograft patients were matched according to sex and body mass index (BMI) in a 2:1 fashion. PROs used included KOOS and Single Assessment Numeric Evaluation (SANE) at baseline and short-term follow up (minimum of 1 year). Minimum clinically important difference was calculated in a distribution-based fashion. Osteoarthritis severity was determined based on Kellgren-Lawrence grading of perioperative knee x-rays. Preexisting osteoarthritis was defined as KL grade 1 or more. ResultsA total of 331 patients were included after matching (215 allograft and 116 autograft patients). The average age was 47.7 ± 6.0 (range: 40-66). Age differed significantly between the two groups, with the allograft cohort having an average age of 48.6 ± 6.0 years and the autograft cohort having an average age of 46.1 ± 5.7 years (p < 0.001). Short-term change in KOOS and SANE scores did not differ by graft type (p = 0.154, p = 0.556, respectively). Sixty-seven percent of all patients met MCID for KOOS and 82% of patients with complete baseline and short-term SANE scores met MCID for SANE. There was a statistically significant difference in rupture rates between the allograft and autograft cohorts (n = 9 allograft vs n = 0 autograft; p = 0.030). There was no difference in re-operation rates between the autograft and allograft cohorts (p = 0.453). Perioperative Kellgren-Lawrence grading did not affect outcomes for either graft type (allograft: p = 0.905 vs. autograft: p = 0.522). ConclusionMiddle-aged patients undergoing ACLR with allograft or autograft demonstrate similar short-term patient reported outcomes. Pre-existing osteoarthritis similarly did not significantly affect short-term outcomes. However, rerupture rates were significantly higher in the allograft cohort than the autograft cohort. Level of EvidenceLevel III - Therapeutic

Unplanned hospital admissions within 24 h after 53,185 surgical procedures at a U.S. ambulatory surgery center

BackgroundUnplanned admission after surgery at an ambulatory surgery center (ASC) is an established measure of the quality of care and can affect the patient’s experience. Previous studies on this topic are generally dated, focused on a single specialty, or studied 30-day admissions after ambulatory surgery. Few studies have reported admission within 24 h after surgery at an ASC which is a different but important measure of the quality of anesthetic and surgical care. Understanding admissions within 24 h of surgery can identify opportunities for improvement immediately after surgery. Therefore, our study was designed to assess the incidence and risk factors for unplanned hospital admissions within 24 h after surgery performed at a hospital ASC.MethodsAfter Institutional Review Board approval, a retrospective analysis was performed on all adult patients who underwent surgery at a US ASC between January 1, 2016, and December 31, 2022. Data were obtained from the hospital’s electronic medical record. The study sample was divided into two groups: those with an unplanned hospital admission within 24 h after surgery and those without an unplanned hospital admission. To evaluate risk factors for unplanned hospital admissions, univariate analyses with p value < 0.05 were utilized to identify significant patient variables related to hospital admissions. These variables were further adjusted using a multivariable Firth logistic regression. Descriptive statistics were used to explore the number of patients in different variable categories.ResultsOverall, 53,185 cases were identified for the 7-year period. The incidence of unplanned hospital admission over this period was 0.09% (95% CI 0.07–0.1122%; ranging from 0.05 to 0.12% per year. In the multivariable model, surgery duration (OR 1.010, 95% CI 1.007–1.012, p value < 0.0001), peripheral vascular disease (OR 14.489, 95% CI 4.862–43.174, p value < 0.0001), and deep venous thrombosis (OR 5.527, 95% CI 1.909–16.001, p value = 0.0016) were significantly associated with unplanned hospital admission.ConclusionThe overall incidence of unplanned hospital admission after surgery at a large tertiary care ambulatory surgery center is very low. This admission rate can also serve as a reference point for future studies and quality improvement initiatives.

2020 CMS prior authorization for hospital outpatient departments: Associated surgical volume impact

BackgroundPrior authorization is common for privately administered Medicare Advantage plans but is rarely used for surgical care when considering publicly administered plans. A 2020 Centers for Medicare and Medicaid services (CMS) policy, CMS-1717-FC, requires prior authorization for Medicare Fee-for-Service beneficiaries undergoing select procedures (blepharoplasty, abdominoplasty, botulinum toxin injection, rhinoplasty, and vein ablation) in hospital outpatient departments. The impact of this policy on surgical volume at hospital outpatient departments and shifts in care to ambulatory surgery centers is unknown. MethodsThis study used a segmented interrupted time series and pre-post logistic regression model. This study was a retrospective cohort study using data from the Healthcare Cost and Utilization Project state ambulatory surgery database and state inpatient database. ResultsFrom 2016 through 2021, a total of 272,879 patients underwent the affected procedures. Pre–CMS-1717-FC, a trend of decreasing hospital outpatient department utilization was found for Medicare Fee-for-Service beneficiaries (–10.82, 95% confidence interval: –18.32 to –3.33, P = .01). In the post-implementation period, no change in the rate of decreasing hospital outpatient department utilization was found for Medicare Fee-for-Service beneficiaries (–3.45, 95% confidence interval: –36.15 to 29.25, P = .83). In the pre-policy period, Medicare Fee-for-Service beneficiaries were 46% less likely to use freestanding ambulatory surgery centers but 27% less likely to use hospital-owned ambulatory surgery centers. ConclusionCMS-1717-FC was not associated with significant changes in hospital outpatient department volume beyond baseline trends. Policy aiming to right-size prior authorization for these procedures and considering site-of-service will balance the need to ensure medical necessity while constraining costs.

Postoperative Nausea and Vomiting in the Ambulatory Surgery Center: A Narrative Review.

Postoperative nausea and vomiting (PONV) is a common complication of ambulatory surgery, leading to numerous deleterious effects such as decreased patient satisfaction, prolonged recovery unit stays, and rarely, more serious complications such as aspiration pneumonia or wound dehiscence. In this paper, we present a narrative review of the literature regarding common risk factors for PONV including patient factors, surgical factors, and anesthetic factors. We then will review anesthetic techniques and antiemetic drugs demonstrated to mitigate the risk of PONV. Finally, we discuss the potential economic benefits of PONV prophylaxis in the perioperative ambulatory setting.

Investigating the Perceived Impact of Surgeons' Burnout on Surgical Physician Associates' Wellness in United States Ambulatory Surgery Centers

Investigating the Perceived Impact of Surgeons' Burnout on Surgical Physician Associates' Wellness in United States Ambulatory Surgery Centers

The Impact of Pediatric Laparoscopic Inguinal Hernia Repair in a Community Based Children's Ambulatory Surgery Center – It's Safe and Effective

PurposePediatric surgery in a free-standing children's ambulatory surgery center (C-ASC) is a common practice. The implementation of minimally invasive surgery in this setting may be associated with unique challenges. The purpose of this study was to compare a cohort of children who underwent laparoscopic (LHR) and open inguinal hernia repairs (OHR) at the C-ASC as part of a quality assurance initiative to assess safety and efficacy. MethodsFrom January 2021 to December 2021, the records of all children who underwent LHR or OHR at our C-ASC were analyzed. The following data was retrieved and compared with the Student's t-test: age, weight, gender, procedure type, total room time (RT), total operative time (OT), and outcomes. ResultsEighty-eight (n = 88) children underwent LHR or OHR during this period. There was no difference between the two groups regarding their age or weight. Both groups had equal outcomes, specifically, no wound infections or recurrent hernias. (2.5 year follow-up). There was a significant reduction in RT and OT in those children who underwent unilateral LHR compared to unilateral OHR (15% and 17% respectively, p < 0.05). In those children who underwent bilateral LHR and bilateral OHR, there was a reduction in RT and OT in the LHR group compared to OHR, but it was not significant (10% and 12% respectively, p > 0.05). ConclusionsPediatric LHR is safe and effective in the C-ASC. The unilateral LHR technique is associated with a significant reduction in total room time and operative time compared to the unilateral OHR technique. Additional analyses would be important to examine the relationship of time and outcomes in this setting. Type of studyOriginal Research Retrospective Case-control study.

Vascular Care Delivery during the COVID-19 Pandemic: Impact of Office-Based Laboratory and Ambulatory Surgery Center

Objective: To evaluate how access to an office-based laboratory (OBL) and ambulatory surgery center (ASC) impacted vascular care during the Coronavirus Disease 2019 (COVID-19) pandemic. Methods: Vascular procedures performed by our group during the 6-week period before COVID-19 restrictions (group 1) and in the first 6-week period during the COVID-19 restrictions (group 2) were reviewed. The number of procedures performed was categorized as hospital inpatient (HIP), hospital outpatient (HOP), OBL, ASC, and vein center (VC). The procedures were also grouped by type: aneurysm (AAA), carotid (CAR), peripheral arterial disease (PAD), amputation/wound care (AMP), vascular access (VA), deep vein thrombosis (DVT), and venous reflux (CVI). The number of healthcare provider contact points for each patient undergoing care at the HOP, OBL, and ASC were also collected and compared between groups 1 and 2. Differences between groups were determined using the two-way ANOVA. Results: There were no statistically significant differences between groups 1 and 2 for procedure location or type of procedure (p &gt; 0.05). Patient contact with healthcare providers decreased between groups 1 and 2 for ambulatory care. However, projecting the number of contacts for patients in group 2 if they had to have ambulatory care in the HOP setting (913) compared to contacts in the OBL and ASC setting (588) was statistically significant (p &lt; 0.05). No patient or staff member at the OBL or ASC developed COVID-19 infection because of the care received at these venues. Conclusions: The ability to provide essential care for patients in an ambulatory environment was enhanced using our OBL and ASC without compromising safety, efficacy, or transmission of the virus to patients or staff during the height of the COVID-19 pandemic and limited their contact with healthcare workers and therefore reduced the consumption of personal protective equipment by healthcare personnel.

Safety and feasibility of cardiac electrophysiology procedures in ambulatory surgery centers

BackgroundDespite their improved safety, by and large, cardiac electrophysiology procedures including catheter ablation (CA), are presently performed in hospital outpatient departments. ObjectiveThis large multicenter study investigated the safety and outcomes associated with various cardiac electrophysiology procedures performed at 6 ambulatory surgery centers (ASCs), primarily during the coronavirus disease 2019 pandemic under the Center for Medicare and Medicaid Services Hospitals Without Walls program. MethodsWe retrospectively analyzed the outcomes from consecutive electrophysiology procedures performed in ASCs with same-day discharge, including transesophageal echocardiography, cardioversion, cardiac implantable electronic device (CIED) implantation, electrophysiology studies, and CA for atrial fibrillation (AF), atrial flutter (AFL)/supraventricular tachycardia, ventricular premature complexes (VPCs), and atrioventricular node. ResultsAltogether, 4037 procedures were performed, including 779 transesophageal echocardiography/cardioversion procedures (19.3%), 1453 CIED implantation procedures (36.0%), 26 electrophysiology studies (0.6%), and 1779 CA procedures (44.1%) for AF (75.4%), AFL/supraventricular tachycardia (18.8%), VPC (4.7%), and atrioventricular node (1.1%). Overall, 80.2% of CA procedures were for left-sided atrial arrhythmias (AF/atypical AFL) requiring transseptal catheterization. Left-sided VPC ablation procedures (42.2%) were performed using a transseptal/retrograde approach. Adverse event rates were low, but comparable between CIED implantation and CA (0.76% vs 0.73%; P = .93), as were the incidences of urgent/unplanned postprocedure hospitalization (0.48% vs 0.45%; P = .89), respectively. Moreover, the adverse event rates in ASCs vs hospital outpatient departments did not differ for CIED (0.76% vs 0.65%; P = .71) or CA (0.73% vs 0.80%; P = .79). ConclusionThe results from this large multicenter study suggest that ASCs represent a safe and effective setting to perform a variety of cardiac electrophysiology procedures including CA. These findings bear important implications for healthcare delivery and policy.

Safety and Efficacy of Same Day Discharge for Men Undergoing Contemporary Robotic-assisted Aquablation Prostate Surgery in an Ambulatory Surgery Center Setting—First Global Experience

To investigate thefeasibility, safety, and efficacy of same-day discharge (SDD) after Aquablation specifically in an ambulatory surgery center (ASC). A prospective cohort of men with significant BPH underwent Aquablation at a single ASC. Comprehensive preoperative assessments were conducted, including uroflowmetry, IPSS, and PVR. Aquablation was performed as morning cases by a single experienced surgeon. Following the procedure, men were assessed for immediate postoperative outcomes, including pain levels, hematuria, and voiding efficiency. Patients meeting discharge criteria were allowed to return home on the same calendar day. A total of 60 consecutive men with a mean prostate size of 115mLunderwent Aquablation, 59 (98%) of whom were discharged the same day. No transfusions or return to the OR occurred. The procedure demonstrated a significant improvement in urinary flow rates and a substantial reduction in IPSS scores at the 1-month post-operative period. Pain scores were found to be minimal, and the incidence of postoperative complications, including hematuria and urinary retention was low and comparable to previously published outcomes. Despite more meticulous focal cautery, no differences in erectile, ejaculatory or adverse outcomes were observed. Aquablation for BPH at an ASC appears to be a safe and effective approach. Morning procedures and attentive cautery and streamlined patient pathways seem essential for SDD. Despite electrosurgical hemostasis, ejaculatory, sexual, and post-operatively pain were not compromised.

First Reported Series of Cerebral Angiography Performed at an Outpatient Center: Safety and Satisfaction Results.

Ambulatory surgery centers (ASCs) are increasingly common venues for same-day neurosurgical procedures, allowing for cost-effective, high-quality patient care. We present the first and largest series of patients undergoing diagnostic cerebral angiography at an ASC to demonstrate the effectiveness, safety, and efficiency of outpatient endovascular care. We retrospectively reviewed data for consecutive patients who underwent diagnostic cerebral angiography at our ASC between January 1, 2024, and May 29, 2024. Data collected included vascular access approach, procedural duration, turnover time, and periprocedural complications. Using a standardized 2-week postprocedural survey, patients were asked to provide comments and rate their subjective satisfaction from a 1 to 5 scale, with "5" being completely satisfied. All cases were performed with a physician team comprising 1 attending neuroendovascular neurosurgery and 1 neuroendovascular fellow present. Fentanyl and midazolam were administered for conscious sedation in all cases. Among the 67 patients included in this series, the mean procedural duration was 29.4 ± 8.6 minutes. The mean turnover time was 13.7 ± 3.6 minutes. Between transradial (46 of 67 [68.7%]) and transfemoral (21 of 67 [31.3%]) access site approaches, there were no statistically significant differences in mean procedural duration (29.4 ± 8.0 vs 29.2 ± 9.9 minutes, respectively; P = .72) or turnover time (14.0 ± 3.9 vs 12.9 ± 2.8 minutes, respectively; P = .4). No complications occurred periprocedurally or within the 2-week follow-up period. A total of 48 (71.6%) of 67 patients responded to the postprocedural survey, all of whom unanimously reported a score of "5." We found that diagnostic cerebral angiography performed at our ASC was safe and effective for patient care. In addition, all survey respondents (71.6% of those provided the survey) reported highest levels of satisfaction. The integration of neuroendovascular procedures into ASCs potentially offers a cost-effective and highly efficient option in an evolving economic landscape.

Outpatient Total Joint Arthroplasty in the “Unhealthy”: Staying Safe Using Institutional Protocols

BackgroundRecent expansion in the indications for outpatient total joint arthroplasty has led to debates over patient selection. The purpose of this study was to compare early clinical outcomes and complications of same-day discharge (SDD) hip and knee arthroplasties from a high-volume institution based on the American Society of Anesthesiologists (ASA) physical status classification. MethodsProspectively collected data were reviewed for all SDD primary joint arthroplasties between January 2013 and August 2023. There were 8 surgeons who performed 7,258 cases at hospital outpatient (n = 4,288) or ambulatory surgery centers (n = 2,970). This included 3,239 total hip arthroplasties, 1,503 total knee arthroplasties, and 2,516 unicompartmental knee arthroplasties. The ASA 1 group comprised 506 subjects, compared to 5,005 for ASA 2 and 1,736 for ASA 3. The primary outcomes included emergency department (ED) visits, readmissions, complications, and revisions within 24 hours and 90 days of surgery. The ASA 3 group was older (ASA 1 = 55 versus ASA 2 = 63 versus ASA 3 = 66 years; P < .01) and had a higher body mass index (ASA 1 = 25.4 versus ASA 2 = 28.5 versus ASA 3 = 32.7; P < .01). ResultsThere were no differences between ASA groups in joint-related ED visits, readmissions, and complications within 24 h and 90 days of surgery (P > .05). Subjects in the ASA 3 group experienced greater 90-day revisions compared to the other groups (ASA 1 = 1 of 506, 0.2% versus ASA 2 = 15 of 5,005, 0.3% versus ASA 3 = 15 of 1,736, 0.9%; P = .01). Regarding systemic events, ASA 1 subjects experienced significantly greater 24-hour complications (8 of 506, 1.6%) and ED visits (5 of 506, 1.0%), and the ASA 3 subjects had a higher incidence of 90-day readmissions (19 of 1,736, 1.1%) compared to the other groups (P < .05). Within 24 hours of discharge, urinary retention and syncope were the most frequent complications that required additional health care utilization. ConclusionsMedically optimized patients categorized as ASA 3 can safely undergo SDD hip and knee arthroplasty without increased risk of 24-hour or 90-day complications. Patient preference for outpatient care, reliable social support, and independent functional status are imperative for a successful outpatient program.

Surgical Care Through a Community Free Clinic-Ambulatory Surgical Center Partnership.

Disparities secondary to underinsurance present throughout the surgical care continuum. Community free clinics are uniquely capable to provide health care services to the medically underserved, but surgery often falls outside their scope of care. Retrospective chart review was conducted on consecutive community free clinic patients receiving free surgical services via referral to a partnering ambulatory surgery center between March 2016 and September 2021. Those with documented contact information were recruited 1-3 years post-procedure for long-term quality-of-life (LTQOL) outcomes assessment via modified Veterans RAND 12-item health survey. Of 142 included patients, 95.7% identified as Hispanic/Latino and 75.6% were uninsured. Twelve patients had cancerous or precancerous lesions detected and/or removed through diagnostic or definitive procedures. 3.5% experienced postoperative complication including bacterial (n = 2) or fungal (n = 1) surgical site infection and wound dehiscence (n = 2). With a 48.9% response rate, no significant differences in sociodemographic or clinical characteristics were found between surveyed vs non-surveyed patients. Of surveyed patients, 59.7% and 52.2% reported pre-/post-operative improvement in physical health and emotional health, respectively. Free diagnostic screening procedures provided timely diagnoses while free definitive surgeries safely and positively impacted long-term patient-reported physical health. Longitudinal, multidisciplinary follow-up and social support may be warranted to concurrently improve emotional and mental health in similarly underinsured populations.

The impact of introducing The impact of introducing diagnostic and therapeutic upper endoscopy in an ambulatory Surgery Center in Rural Eastern Uganda diagnostic and therapeutic upper endoscopy in an ambulatory Surgery Center in Rural Eastern Uganda

The impact of introducing The impact of introducing diagnostic and therapeutic upper endoscopy in an ambulatory Surgery Center in Rural Eastern Uganda diagnostic and therapeutic upper endoscopy in an ambulatory Surgery Center in Rural Eastern Uganda

Potential Cost Savings with 60-day Peripheral Nerve Stimulation Treatment in Chronic Axial Low Back Pain.

Chronic axial low back pain (CLBP) that is not responsive to medication management or physical therapy often requires significant clinical intervention. Several interventional pain management options exist, including a 60-day peripheral nerve stimulation (PNS) treatment. This economic evaluation investigated the potential for projected cost savings associated with prioritizing 60-day PNS treatment relative to a 'standard of care' (SOC) approach (where patients do not have access to 60-day PNS). A decision tree (supervised machine learning) model tracked treatment progression across two hypothetical cohorts of US patients with CLBP in whom non-interventional options were ineffective (Cohort A: treatment starting with 60-day PNS followed by any additional interventional and surgical treatments versus Cohort B: standard of care interventional and surgical treatments without access to 60-day PNS). Treatment efficacy estimates were based on published success rates. Conditional on treatment failure, up to two additional interventions were considered within the 12-month time frame in both cohorts. SOC treatment options included epidural injection, radiofrequency ablation (RFA), basivertebral nerve ablation (BVNA), PNS permanent implant (PNS-PI), spinal cord stimulator (SCS) trial/implant, and spinal fusion surgery. Treatment choice probabilities in both cohort algorithms were based on clinician interviews. Costs were based on national Medicare reimbursement levels in the ambulatory surgery center (ASC) setting. Savings reflected the difference in projected costs between cohorts. A Monte Carlo simulation and sensitivity analyses were conducted to generate confidence intervals and identify important inputs. The treatment algorithm which prioritized initial 60-day PNS treatment was projected to save $8056 (95% CI $6112-$9981) per patient during the first year of interventional treatment relative to the SOC approach. Use of the 60-day PNS treatment as an initial interventional treatment in patients with CLBP may result in significant savings for Medicare. Projected savings may be even larger for commercial payers covering non-Medicare patients.

Poster 396: Performing Sports Medicine Procedures in Ambulatory Surgery Centers Is More Cost Effective than Hospital Outpatient Departments for Medicare Recipients

Objectives: To compare the overall cost of sports medicine procedures for Medicare beneficiaries in both ambulatory surgery centers (ASC) and hospital outpatient department (HOPD) settings. Secondary aims were to compare facility fees, surgeon fees, Medicare payments, and patient payments between ASCs and HOPDs. Methods: Publicly available data from The Centers for Medicare &amp; Medicaid Services (CMS) was accessed via the Medicare Procedure Price Lookup Tool. Current Procedural Terminology (CPT) codes were used to identify sports medicine procedures approved for the outpatient setting by CMS. Facility fees, surgeon fees, total costs, Medicare payment, and patient payment were extracted. Descriptive statistics were used to calculate means and standard deviations. Cost differences were analyzed using Mann Whitney U tests. Results: Sixty-two CPT codes were identified. Shoulder procedures (n=25) at ASCs had lower total costs (3,622±1,156 vs 6,262±1,759; p&lt;0.001), facility fees (2,777±1,020 vs 5,416±1,606; p&lt;0.001), Medicare payments (2,898±928 vs 5,009±1,407 p&lt;0.001), and patient payments (724±232 vs 1,252±352; p&lt;0.001) compared to HOPDs. Knee procedures (n=31) at ASCs had lower total costs (4,236±2,741 vs 6,668±3,341; p=0.006), facility fees (3,408±2,507 vs 5,840±3,116; p=0.006), Medicare payments (3,389±2,193 vs 5,458±2,955; p=0.006), and patient payments (847±548 vs 1,209±429; p=0.011). Hip procedures (n=6) at ASCs had lower total costs (3,583±698 vs 6,671±1,451; p=0.025), facility fees (2,725±6689 vs 5,813±1,431; p=0.025), Medicare payments (2,866±558 vs 5,336±1,161; p=0.025), and patient payments (716±139 vs 1,333±290; p=0.025). Conclusions: Sports medicine procedures performed at ASCs for Medicare recipients were found to have overall average total cost savings of 40% compared to those performed at HOPDs (42% savings for shoulder, 36% for knee, and 46% for hip procedures). ASC use conferred lower facility fees, patient payments, and Medicare payments in all cohorts. These results inform surgeons, patients, and insurance officials of the cost-effectiveness of outpatient surgical facilities for Medicare recipients undergoing sports medicine procedures.

Same Day Discharge Total Knee Arthroplasty: Hospital Demonstrates Similar Outcomes to Ambulatory Surgery Center in a More Complex Patient Population

BackgroundThe purpose of this study was to compare outcomes between patients undergoing same-day discharge (SDD) total knee arthroplasty (TKA) at an ambulatory surgery center (ASC) versus a tertiary care university hospital setting. MethodsA single tertiary academic center’s institutional database was reviewed for patients who underwent primary TKA and were discharged the same day from August 2021 to January 2024. Patients who did not have at least 1 year of follow-up were excluded. Patient demographics, comorbidities, patient-reported outcome measures, emergency department visits, admissions, reoperations, and revisions were collected. Patients were stratified by the location of their surgery: ASC versus hospital. Specific criteria had to be met prior to surgery at the ASC, and the final decision regarding the location of surgery was made via shared decision-making between the patient and their surgeon. Patients who did not meet ASC criteria underwent TKA at the main hospital. Univariable analyses were used to compare groups, and multivariable logistic regression was used to determine if surgical location was a significant factor. Of the 449 TKAs meeting inclusion criteria, 63.3% (284) were performed at the ASC and 36.7% (165) at the university hospital at a mean follow-up of 1.51 years (range, 1.00 to 2.40). Of those 165 whose surgery was done at the hospital, 93.9% met at least one ASC exclusion criteria. ResultsPatients whose TKA was done at the hospital had significantly higher weight (P = 0.003), body mass index (P < 0.001), Elixhauser comorbidity index (P < 0.001), proportion of patients who had an American Society of Anesthesiologists classification of 3 (P = 0.023), and proportion of patients who required general anesthesia (P < 0.001). Additionally, patients whose TKA was done at the hospital had higher preoperative patient-reported outcome measurement information system (PROMIS) pain interference (PI) (62.0 [59.0, 66.0] versus 63.0 [61.8, 67.0]; P = 0.006), and lower physical function (PF) (39.0 [36.0, 43.0] versus 38.0 [34.0, 41.0]; P = 0.001). At 1 year, however, patients in both groups had similar PROMIS PI (53.0 [49.0, 59.0] versus 54.0 [44.0, 59.0]; P = 0.785) and PROMIS PF (47.0 [42.0, 51.0] versus 47.0 [41.0, 50.0]; P = 0.422) scores as well as similar rates of achieving minimum clinically important difference for PROMIS PI (64.4 versus 71.4%; P = 0.336) and PROMIS PF (60.5 versus 71.4%; P = 0.124). They also had a similar number of emergency department visits and admissions at 30 and 90 days, as well as similar reoperation-free (92.0 versus 93.3%; P = 0.79) and revision-free (95.5 versus 99.4%; P = 0.59) survival at 2 years ConclusionsAlthough ASCs have strict patient criteria for SDD TKA, complex patients at a tertiary university hospital can be sent home the same day with equivalent outcomes. Therefore, unhealthier patients can safely achieve SDD without compromising outcomes if done in the appropriate setting.