Pediatric Plastic Surgery Under Local Anesthesia.

BACKGROUND: Increasing research has shown that select surgical procedures can be performed in an office-based environment with low complication rates. Within the field of plastic surgery, these findings have mainly been studied in adult populations. However, studies regarding the safety and efficacy of office-based plastic surgery in the pediatric population are lacking. In the present study, we demonstrate that appropriately selected office-based pediatric plastic surgery procedures can be performed under local anesthesia for a variety of common surgical indications with low complication rates. METHODS: A retrospective case series of pediatric plastic surgery patients who underwent in-office procedures under local anesthesia at a single academic institution from September 2014 to June 2020 was performed. RESULTS: Five hundred nine patients were treated in an office setting for various etiologies over the study period. A total of 48.9% of the patients were male and 51.1% were female. Patient age at time of procedure ranged from 24 days to 17 years of age with a median age of 13 years. A total of 778 lesions were treated. There were 10 total complications (1.29%) over the study period with only one surgical site infection that resolved with antibiotic treatment. CONCLUSIONS: Our work indicates that select pediatric plastic surgery procedures can be performed under local anesthesia with low complication rates.

Robotic ambulatory colorectal resections: a systematic review.

Colorectal surgery has progressed greatly via minimally invasive techniques, laparoscopic and robotic. With the advent of ERAS protocols, patient recovery times have greatly shortened, allowing for same day discharges (SDD). Although SDD have been explored through laparoscopic colectomy reviews, no reviews surrounding robotic ambulatory colorectal resections (RACrR) exist to date. A systematic search was carried out across three databases and internet searches. Data were selected and extracted by two independent reviewers. Inclusion criteria included robotic colorectal resections with a length of hospital stay of less than one day or 24 h. 4 studies comprising 136 patients were retrieved. 56% of patients were female and were aged between 21 and 89 years. Main surgery indications were colorectal cancer and recurrent sigmoid diverticulitis (43% each). Most patients had low anterior resections (48%). Overall, there was a 4% complication rate postoperatively, with only 1 patient requiring readmission due to postoperative urinary retention (< 1%). Patient selection criteria involved ASA score cut-offs, nutritional status, and specific health conditions. Protocols employed shared similarities including ERAS education, transabdominal plane blocks, early removal of urinary catheters, an opioid-sparing regime, and encouraged early oral intake and ambulation prior to discharge. All 4 studies had various follow-up methods involving telemedicine, face-to-face consultations, and virtual ward teams. RACrRs is safe and feasible in a highly specific patient population; however, further high-quality studies with larger sample sizes are needed to draw more significant conclusions. Several limitations included small sample size and the potential of recall bias due to retrospective nature of 2 studies.

Safety Considerations for Outpatient Arthroplasty.

Since 2018, the number of total joint arthroplasties (TJAs) performed on an outpatient basis has dramatically increased. Both surgeon and anesthesiologist should be aware of the implications for the safety of outpatient TJAs and potential patient risk factors that could alter this safety profile. Although smaller studies suggest that the risk of negative outcomes is equivalent when comparing outpatient and inpatient arthroplasty, larger database analyses suggest that, even when matched for comorbidities, patients undergoing outpatient arthroplasty may be at increased risk of surgical or medical complications. Appropriate patient selection is critical for the success of any outpatient arthroplasty program. Potential exclusion criteria for outpatient TJA may include age greater than 75 years, bleeding disorder, history of deep vein thrombosis, uncontrolled diabetes mellitus, and hypoalbuminemia, among others. Patient optimization before surgery is also warranted. The potential risks of same-day versus next-day discharge have yet to be elicited in a large-scale manner.

Discharge within 24 h, transvaginal natural orifice transluminal endoscopic surgery- more suitable for ambulatory surgery in gynecology procedures: a retrospective study.

BACKGROUND: Natural orifice transluminal endoscopic surgery (NOTES) is an achievement in the field of minimally invasive surgery. However, the vantage point of vaginal natural orifice transluminal endoscopic surgery (vNOTES) in gynecologicalprocedures remains unclear. The main purpose of this study was to compare vNOTES with laparo-endoscopic single-site surgery, and to determine which procedure is more suitable for ambulatory surgery in gynecologic procedures. METHODS: This retrospective observational study was conducted at the Department of Gynecology, Chengdu Women's and Children's Central Hospital. The 207 enrolled patients had accepted vNOTES and laparo-endoscopic single-site surgery in gynecology procedures from February 2021 to March 2022. Surgically relevant information regarding patients who underwent ambulatory surgery was collected, and 64 females underwent vNOTES. RESULTS: Multiple outcomes were analyzed in 207 patients. The Wilcoxon Rank-Sum test showed that there were statistically significant differences between the vNOTES and laparo-endoscopic single-site surgery groups in terms of postoperative pain score (0 vs. 1 scores, p = 0.026), duration of anesthesia (90 vs. 101 min, p = 0.025), surgery time (65 vs. 80 min, p = 0.015), estimated blood loss (20 vs. 40 mL, p < 0.001), and intestinal exhaustion time (12.20 vs. 17.14 h, p < 0.001). Treatment with vNOTES resulted in convenience, both with respect to time savings and hemorrhage volume in surgery and with respect to the quality of the prognosis. CONCLUSION: These comprehensive data reveal the capacity of vNOTES to increase surgical efficiency. vNOTES in gynecological procedures may demonstrate sufficient feasibility and provide a new medical strategy compared with laparo-endoscopic single-site surgery for ambulatory surgery in gynecological procedures.

The effectiveness of ambulatory continuous popliteal sciatic nerve blockade on patient-reported overall benefit of analgesia in patients undergoing foot or ankle surgery (CAREFREE trial); a randomized, open label, non-inferiority trial.

STUDY OBJECTIVE: Management of pain after foot and ankle surgery remains a concern for patients and healthcare professionals. This study determined the effectiveness of ambulatory continuous popliteal sciatic nerve blockade, compared to standard of care, on overall benefit of analgesia score (OBAS) in patients undergoing foot or ankle surgery. We hypothesized that usage of ambulatory continuous popliteal sciatic nerve blockade is non-inferior to standard of care. DESIGN: Single center, randomized, non-inferiority trial. SETTING: Tertiary hospital in the Netherlands. PATIENTS: Patients were enrolled if ≥18 years and scheduled for elective inpatient foot or ankle surgery. INTERVENTION: Patients were randomized to ambulatory continuous popliteal sciatic nerve blockade or standard of care. MEASUREMENTS: The primary outcome was the difference in OBAS, which includes pain, side effects of analgesics, and patient satisfaction, measured daily from the first to the third day after surgery. A non-inferiority margin of 2 was set as the upper limit for the 90% confidence interval of the difference in OBAS score. Mixed-effects modeling was employed to analyze differences in OBAS scores over time. Secondary outcome was the difference in opioid consumption. MAIN RESULTS: Patients were randomized to standard of care (n = 22), or ambulatory continuous popliteal sciatic nerve blockade (n = 22). Analyzing the first three postoperative days, the OBAS was significantly lower over time in the ambulatory continuous popliteal sciatic nerve blockade group compared to standard of care, demonstrating non-inferiority (-1.9 points, 90% CI -3.1 to -0.7). During the first five postoperative days, patients with ambulatory continuous popliteal sciatic nerve blockade consumed significantly fewer opioids over time compared to standard of care (-8.7 oral morphine milligram equivalents; 95% CI -16.1 to -1.4). CONCLUSIONS: Ambulatory continuous popliteal sciatic nerve blockade is non-inferior to standard of care with single shot popliteal sciatic nerve blockade on patient-reported overall benefit of analgesia.

Cubital tunnel release with Wide Awake Local Anaesthesia No Tourniquet (WALANT) technique in an outpatient setting is safe and effective.

Ulnar nerve release is often performed under general anaesthesia. Wide Awake Local Anaesthesia No Tourniquet (WALANT) is a new anaesthetic method increasingly used by hand surgeons in an outpatient setting. It has advantages such as the possibility to shift surgical interventions out of the regular surgical theatre settings into an outpatient clinical setting, no risk of complications or side effects resulting from regional and general anesthesia and decreased costs. The use of WALANT has not been investigated extensively in elbow surgery. This study aims to evaluate clinical outcomes after ulnar nerve release under WALANT 27 patients with ulnar nerve release for cubital tunnel syndrome were included. The primary outcome was the presence of (remaining) symptoms after ulnar nerve release. Data was extracted from medical records. 13 out of 27 patients had (mild) remaining symptoms after ulnar nerve release, and 1 complication (superficial wound infection) was seen. Ulnar nerve release under WALANT is safe and effective in patients with primary ulnar nerve entrapment that have failed conservative therapy.

Proyecto DUCMA 2.0. Puesta al día sobre la situación actual de las unidades de Cirugía Mayor Ambulatoria en España / DUCMA 2.0 project: Update on the current situation of the outpatient surgery units in Spain

Introducción: La cirugía mayor ambulatoria (CMA) es un sistema de gestión seguro y eficiente para resolver los problemas quirúrgicos, pero su implantación y desarrollo ha sido variable. El objetivo de este estudio es describir las características, la estructura y el funcionamiento de las unidades de Cirugía Mayor Ambulatoria (UCMA) en España. Métodos: Estudio observacional, transversal, multicéntrico basado en una encuesta electrónica, con recogida de datos entre abril y septiembre de 2022. Resultados: En total, 90 UCMA completaron la encuesta. La media del índice de ambulatorización (IA) global es de 63%. Más de la mitad de las UCMA (52%) son de tipo integrado. La mitad las unidades imparte formación para médicos (51%) y personal de enfermería (55%). Los indicadores de calidad más utilizados son la tasa de suspensiones (87%) y de ingresos no previstos (80%). Conclusiones: Se necesita mayor coordinación entre administraciones para obtener datos fiables. Asimismo, se deben implementar sistemas de gestión de calidad en las unidades y desarrollar herramientas para la formación adecuada de los profesionales implicados.(AU)

Introduction: Ambulatory surgery is a safe and efficient management system to solve surgical problems, but its implementation and development has been variable. The aim of this study is to describe the characteristics, structure and functioning of ambulatory surgery units (ASU) in Spain. Methods: Multicenter, cross-sectional, observational study based on an electronic survey, with data collection between April and September 2022. Results: In total, 90 ASUs completed the survey. The mean overall ambulatory index is 63%. More than half of the ASUs (52%) are integrated units. Around half of the units provide training for physicians (51%) and for nurses (55%). The most frequently used quality indicators are suspension rate (87%) and the rate of unplanned admissions (80%). Conclusions: Greater coordination between administrations is needed to obtain reliable data. It is also necessary to implement quality management systems in the different units, as well as to develop tools for the adequate training of the professionals involved.(AU)

Randomized, Single-Blind, Comparative Study of Remimazolam Besylate vs Propofol for Facial Plastic Surgery.

BACKGROUND: Use of local anesthesia and conscious sedation with a combination of a sedative and anesthetic drug during a surgical procedure is an approach designed to avoid intubation, which produces fewer adverse events compared to general anesthesia. In the present study, a comparison was made between the efficacy and safety of remimazolam besylate and propofol for facial plastic surgery. OBJECTIVES: The objective was to evaluate the clinical efficacy, comfort, and incidence of adverse events of remimazolam compared with propofol combined with alfentanil in outpatient facial plastic surgery. METHODS: In this randomized, single-blind, single-center, comparative study, facial plastic surgery patients were randomly divided into remimazolam-alfentanil (n = 50) and propofol-alfentanil (n = 50) groups for sedation and analgesia. The primary endpoint was the incidence of hypoxemia, while secondary endpoints included efficacy and safety evaluations. RESULTS: There were no significant differences regarding the surgical procedure, sedation and induction times, pain and comfort scores, muscle strength recovery, heart rate, respiratory rate, and blood pressure, but the dosage of alfentanil administered to the remimazolam group (387.5 µg) was lower than that for the propofol group (600 µg). The incidence of hypoxemia (P = .046) and towing of the mandibular (P = .028), as well as wake-up (P = .027) and injection pain (P = .008), were significantly higher in the propofol group than the remimazolam group. CONCLUSIONS: Remimazolam and propofol had similar efficacies for sedation and analgesia during facial plastic surgery, but especially the incidence of respiratory depression was significantly lower in patients given remimazolam.

In-Office Lens Repositioning for Anterior Crystalline Lens Dislocation.

BACKGROUND AND OBJECTIVE: We describe an in-office lens repositioning technique for anterior crystalline lens dislocation. PATIENTS AND METHODS: We present a case series of four patients with spontaneous or traumatic anterior crystalline lens dislocation. RESULTS: The technique included supine patient positioning, gentle pressure with a cotton swab on the peripheral cornea to guide the lens into the posterior chamber, and the use of a miotic agent afterward to prevent subsequent subluxation. In the four cases described, the in-office technique successfully restored the lens to the posterior chamber, improved vision, and decreased intraocular pressure in most instances by resolving the angle closure secondary to pupillary block. CONCLUSIONS: The in-office lens repositioning technique is appropriate as an acute non-surgical intervention or temporizing measure for anterior crystalline lens dislocation. [Ophthalmic Surg Lasers Imaging Retina 2024;55:293-298.].

Safety of Outpatient Plastic Surgery: A Comparative Analysis Using the TOPS Registry with 286,826 Procedures.

BACKGROUND: Outpatient plastic surgery at office-based surgery facilities (OBSFs) and ambulatory surgery centers (ASCs) has become increasingly prevalent over the past 30 years. Importantly, historical data are inconsistent regarding the safety outcomes of these venues, with advocates for both citing supporting studies. This investigation's purpose is to provide a more definitive comparative evaluation of outcomes and safety for outpatient surgery performed in these facilities. METHODS: The most common outpatient procedures were identified using the Tracking Operations and Outcomes for Plastic Surgeons database between 2008 and 2016. Outcomes were analyzed for OBSFs and ASCs. Patient and perioperative information was also analyzed using regression analysis to identify risk factors for complications. RESULTS: A total of 286,826 procedures were evaluated, of which 43.8% were performed at ASCs and 56.2% at OBSFs. Most patients were healthy, middle-aged women categorized as American Society of Anesthesiologists class I. The incidence of adverse events was 5.7%, and most commonly included antibiotic requirement (1.4%), dehiscence (1.3%), or seroma requiring drainage (1.1%). Overall, there was no significant difference in adverse events between ASCs and OBSFs. Age, American Society of Anesthesiologists class, body mass index, diabetes, smoking history, general anesthesia, certified registered nurse anesthetist involvement, operative duration, noncosmetic indications, and body region were associated with adverse events. CONCLUSIONS: This study provides an extensive analysis of common plastic surgery procedures performed in an outpatient setting in a representative population. With appropriate patient selection, procedures are safely performed by board-certified plastic surgeons in ambulatory surgery centers and office-based settings, as evidenced by the low incidence of complications in both environments. CLINICAL QUESTION/LEVEL OF EVIDENCE: Therapeutic, III.

Use of chloroprocaine in orthopedic day surgery: a brief report in a cohort of patients undergoing knee arthroscopy.

OBJECTIVE: Spinal anesthesia with local anesthetics is a viable alternative to general anesthesia in orthopedic surgery, and it is currently considered the standard of care for knee arthroscopy. The use of chloroprocaine may offer several potential advantages over other local anesthetics, including, above all, its rapid onset and short duration of action. The aim of the present retrospective study is to evaluate the post-surgical outcomes of patients who underwent knee arthroscopy using spinal anesthesia with chloroprocaine in an outpatient orthopedic setting. PATIENTS AND METHODS: Data from patients who underwent elective knee arthroscopy between January 2022 and December 2022 were collected for the present study. Spinal anesthesia with chloroprocaine 10 mg/mL was administered in the designated subarachnoid space (L3-L4 in the majority of patients). A dosage of 40 mg was used to obtain a satisfactory sensory and motor block. RESULTS: A total number of 302 patients met the inclusion criteria. No complications were reported during surgery in the present series of patients. None of the patients required bladder catheterization. In 84% of cases, the PADSS (Post-Anesthetic Discharge Scoring System) score at discharge was 10, whereas in 16% of cases, the PADSS score was 9. The mean time from anesthesia induction to first urination was 75±9.4 minutes, while the mean time from the anesthesia induction to the discharge from the hospital was 152±18.5 minutes. CONCLUSIONS: Spinal chloroprocaine for knee arthroscopy demonstrated a short motor block duration, resulting in a fast time to discharge. These limited data show that chloroprocaine may be safely and effectively applied in outpatient knee arthroscopy procedures. However, more studies, possibly with a randomized design, are required to confirm these findings.

Manejo anestésico de un paciente con síndrome de Churg-Strauss en el contexto ambulatorio: informe de un caso / Anesthesia management in a patient with Churg-Strauss syndrome in the ambulatory setting: A case report

La granulomatosis eosinofílica con poliangitis, también denominada síndrome de Churg-Strauss, es una vasculitis rara con compromiso multisistémico. Existe poca literatura en cuanto al enfoque anestésico de los pacientes con esta enfermedad. A nuestro saber, presentamos aquí el primer informe sobre cirugía ambulatoria en un paciente con granulomatosis eosinofílica con poliangitis. Este caso subraya la preocupación por la seguridad de la cirugía ambulatoria y el manejo anestésico exitoso de un paciente con granulomatosis eosinofílica con poliangitis con anestesia regional.(AU)

Eosinophilic granulomatosis with polyangiitis, also known as Churg-Strauss syndrome, is a rare type of vasculitis with multisystemic involvement. Very few authors have described the anaesthesia technique in these patients. We present the first report on ambulatory surgery in a patient with eosinophilic granulomatosis with polyangiitis. This case dispels concerns about the safety of day surgery and reports successful regional anaesthesia management in a patient with eosinophilic granulomatosis with polyangiitis.(AU)

Editorial Commentary: Cost Savings Related to Ambulatory Surgery Center Use Almost Exclusively Benefit the Payor.

Use of ambulatory surgery centers for orthopaedic procedures has been on the rise. The cost of any given ambulatory procedure tends to be less at an ambulatory surgery center than at a hospital outpatient department. People may assume that these cost savings benefit the patient, but recent research using claims and reimbursement databases shows minimal patient out-of-pocket cost reduction, and this minimal reduction is gradually increasing. The research also shows lower surgeon and facility reimbursement. The payor primarily benefits. The explanation probably lies in the fact that for procedures such as hip arthroscopy, patients are likely to meet their deductibles and out-of-pocket maximums regardless of venue, and any cost reduction for these types of procedures almost exclusively benefits the payor. Compounding this, increasing deductibles and copayment requirements, as have been prevalent in recent years, likely contribute to overall increased patient out-of-pocket expenditures seen over time.

The high-risk pediatric patient for ambulatory surgery.

PURPOSE OF REVIEW: The aim of this article is to briefly review the pediatric ambulatory surgery landscape, identify two of the most common comorbidities affecting this population, examine the influence of pediatric obesity and sleep disordered breathing (SDB)/obstructive sleep apnea (OSA) on perioperative care, and provide information that can be used when formulating site specific criteria for ambulatory surgical centers. RECENT FINDINGS: Most pediatric surgeries performed are now ambulatory, a majority of which take place outside of academic centers. Children with comorbidities such as obesity and SDB/OSA are undergoing surgical or diagnostic procedures which were previously deemed unacceptable for ambulatory surgery. The increase in pediatric ambulatory surgery coupled with a recent shortage of pediatric anesthesiologists means many children will receive anesthesia care from general clinicians who care for children intermittently and may be unfamiliar with the perioperative risks these comorbidities can present. SUMMARY: Our pediatric ambulatory surgical population is anticipated to demonstrate increasing rates of obesity and SDB/OSA. Bringing attention to potential perioperative complications associated with these comorbidities provides a stronger foundation upon which to formulate criteria for individual ambulatory centers. It allows for targeted anesthetic management, influences provider assignments and/or staffing ratios, and informs scheduling times. For anesthesiologists who do not practice pediatric anesthesia daily, knowing what to anticipate plays a significant role in the ability to eliminate surprises and care for these patients safely.

Enucleación prostática con láser de holmio (HoLEP) mediante cirugía sin ingreso: una alternativa posible y segura / Holmium laser enucleation of the prostate (HoLEP) as same-day surgery: A safe and feasible option

Objetivo Estudiar la viabilidad de la enucleación prostática con láser de holmio (HoLEP) en circuito de cirugía mayor ambulatoria. Material y métodos Se realiza un estudio prospectivo observacional en el que se incluyen 25 pacientes intervenidos de HoLEP que han sido dados de alta el mismo día de la cirugía según criterios previamente establecidos. Resultados La edad media de los pacientes intervenidos fue de 65,1 años. El volumen prostático medio fue de 45,8cc. Todos los pacientes fueron dados de alta el día de la cirugía (alta efectiva 100%). El porcentaje de complicaciones en nuestra serie fue del 12%, todas ellas grado I según la Clasificación Clavien Dindo. Ningún paciente precisó reingreso en los 30 días posteriores al procedimiento. El porcentaje de satisfacción con el circuito de cirugía ambulatoria fue del 95%. Conclusiones Tras el análisis inicial de nuestros datos podemos concluir que el HoLEP ambulatorio es una técnica eficaz y segura con bajo riesgo de complicaciones. El circuito de cirugía ambulatoria es el preferido por los pacientes intervenidos de HoLEP (AU)

Objective To study the feasibility of holmium laser enucleation (HoLEP) performed as a same-day surgery. Material and methods Prospective observational study including 25 patients submitted to HoLEP. Patients were discharged the same day if they met the established criteria. Results The mean age of the patients was 65.1 years and prostate volume was 45.8cc. All patients were discharged the same day of surgery. The overall complication rate at 30 days was 12% (Clavien I 100%). The rate of re-hospitalization was 0%. Patient satisfaction rate with the day surgery pathway was 95%. Conclusions The initial analysis of our results suggests that outpatient HoLEP is a safe and effective alternative with low rate of complications. According to satisfaction rates, patients prefer the day surgery pathway for the performance of HoLEP (AU)

Ambulatory Orbital Fracture Repair: An Analysis of ER Visits After Surgery From a Multistate Study.

OBJECTIVE: To determine the 30-day postoperative emergency room (ER) visit rate following ambulatory orbital fracture repair with same-day discharge, and the causes and risk factors associated with ER visit. STUDY DESIGN: Database study. SETTING: State Ambulatory Surgery and Services Database (SASD) and State Emergency Department Database (SEDD) for California, New York, and Florida for 2011. METHODS: We identified orbital fracture repair procedures among adults from the SASD, which was linked to the SEDD to identify the incidence and causes of ER visits within 30 days. Univariate and multivariable logistic regression models were used to determine the factors associated with ER visit. RESULTS: Among 762 patients, the 30-day postoperative ER visit rate was 4.5%. Most ER visits (58.9%) occurred during the first week after surgery. The most common reasons for ER visits were related to pain, swelling, headache, dizziness, and fatigue (29.4%), followed by ophthalmologic etiologies including visual disturbances and infection of the eye (14.7%). There was no case of retrobulbar hematoma. In the multivariate analysis, patients living in Florida were at a significantly higher risk for ER visit compared to those in California (odds ratio: 4.48 [1.43-14.10], p = .010). CONCLUSION: Ambulatory orbital fracture repair appears to be safe. Common reasons for ER visit included pain, swelling, and ophthalmic symptoms. An increased risk for ER visit was seen with certain geographic regions but not with medical comorbidities or concurrent facial fractures or procedures.

Outpatient parotidectomy: Outcomes, safety and satisfaction.

PURPOSE: Parotidectomies are rarely performed on an outpatient basis. The specific perioperative outcomes and their management remains insufficiently described to change daily practice. The objectives were to study the outcomes, the complications and the patient satisfaction rate in parotidectomy performed on an outpatient basis. MATERIALS AND METHODS: We conducted a retrospective monocentric database study on 85 patients who underwent parotidectomy as a first and sole procedure from 2015 to 2020. We analyzed perioperative outcomes between outpatients and inpatients. RESULTS: Among 28 outpatients and 57 inpatients, no significant differences in total perioperative complications (p = .66; OR = 1.25; 95 % confidence interval (CI) [0.47; 3.36]), reoperations (p = .55), readmissions (p = 1), or unplanned visits (p = .52) were shown in multivariate analysis. The conversion rate for surgical reasons was 8.6 %, and the satisfaction rate was high. CONCLUSION: Although outpatient parotidectomies should be as safe as for inpatients, the high rate of minor complications requires specific perioperative management, such as a systematic early postoperative visit and optimized preoperative information in order to be carried out with minimal issues.

Spinal anesthesia in ambulatory surgery.

Spinal anesthesia is a safe alternative to general anesthesia but remains underrepresented in the ambulatory setting. Most concerns relate to low flexibility of spinal anesthesia duration and the management of urinary retention in the outpatient setting. This review focuses on the characterization and safety of the local anesthetics that are available to adapt spinal anesthesia very flexibly to the needs of ambulatory surgery. Furthermore, recent studies on the management of postoperative urinary retention provide evidence for safe, but report wider discharge criteria and much lower hospital admission rates. With the local anesthetics that have current approval for usage in spinal anesthesia, most requirements for ambulatory surgeries can be met. The reported evidence on local anesthetics without approval supports clinically established off-label use and can improve the results even further.