Operating Theatre Research Articles

Gynecologic oncology robot-assisted surgery in octogenarians: Impact of age on hospital stay.

To compare postoperative stay in octogenarians and younger patients undergoing gynecologic oncology robot-assisted surgery. A retrospective review of robot-assisted surgery in Gynecological Oncology division during 2019-2022. We included all consecutive cases. Octogenarians (age ≥80 years) and younger patients were investigated by univariable analysis for characteristics and outcome. A total of 816 robot-assisted surgeries were performed, 426 (52.2%) endometrial cancer, 159 (19.5%) ovarian cancer, 27 (3.3%) cervical cancer, 35 (4.3%) endometrial intraepithelial neoplasia, and in 169 (20.7%) the final pathology was benign. There were 60 (7.4%) octogenarians and 756 (92.6%) younger patients. The proportion of patients with an American Society of Anesthesiology score greater than 2 was higher among octogenarians (66.7% vs 32.0%, P < 0.001). The median console time, surgical time, and total operation theater time were similar between groups (P = 0.303, P = 0.643 and P = 0.688, respectively). Conversion rate did not differ between groups (0.4% among younger patients vs 0% in octogenarians, P > 0.99). The median length of stay in the recovery room was similar in both groups (median 170 min, interquartile range [IQR] 125-225 min vs 170 min, IQR 128-240 min in octogenarians, P = 0.731). Length of hospital stay was similar in both age groups; median 1 day (IQR 1-1) among octogenarians versus 1 (0-1) in younger patients (P = 0.136). Octogenarians undergoing robotic surgery have no increased risk of length of stay or conversion to laparotomy compared with younger patients.

Effect of Sugammadex on Postoperative Pulmonary Complications and Rapid Recovery in Lung Cancer Patients Treated with Video-Assisted Thoracic Surgery: A Retrospective Cohort Study.

This study aimed to investigate the effects of sugammadex on postoperative pulmonary complications and rapid recovery in lung cancer patients undergoing video-assisted thoracic surgery (VATS). A retrospective analysis was conducted on the clinical data of 1131 lung cancer patients. Of these, 631 patients received sugammadex at the end of anesthesia, while 500 patients did not. To mitigate potential confounding factors, propensity score matching (PSM) was employed at a 1:1 ratio. After matching, 435 patients were obtained from each group. Patients who received sugammadex at the end of anesthesia were classified into Group S (n = 435) and those who did not receive sugammadex were Group P (n = 435). Postoperative pulmonary complications, indicators of recovery after surgery, nausea and vomiting, pain and lung infection scores and biochemical indices were compared between the two groups. Compared to Group P, Group S demonstrated statistically significant improvements across multiple perioperative and postoperative outcomes. Group S exhibited a lower incidence of postoperative pulmonary complications (χ2 = 9.52, p = 0.002), as well as reduced durations for several key time intervals: from the cessation of muscle relaxation to extubation (Z = 12.96, p < 0.001), from the conclusion of surgery to extubation (Z = 13.66, p < 0.001), and total operating theatre occupancy (Z = 5.81, p < 0.001). Furthermore, Group S showed accelerated recovery in terms of time to first oral intake (drink: Z = 3.80, p < 0.001; eat: Z = 3.80, p < 0.001), time to defecate (Z = 3.25, p = 0.001), and time to chest tube removal (Z = 5.04, p < 0.001). Pain management outcomes were also superior in Group S, with lower motor visual analogue scale (VAS) scores at both 24 h (Z = 4.71, p < 0.001) and 48 h (Z = 5.05, p < 0.001) postoperatively. Group S additionally demonstrated a lower modified Clinical Pulmonary Infection Score (mCPIS) (Z = 4.68, p < 0.001), reduced complication rates during the general anesthesia awakening period (χ2 = 23.54, p < 0.001), and a lower incidence of renal function abnormalities (χ2 =12.65, p < 0.001). Certain parameters, including total hospital stay duration and postoperative drainage volume, did not differ significantly between the two groups (p > 0.05). Sugammadex can effectively reduce the incidence of postoperative pulmonary complications in lung cancer patients treated with VATS, and help promote their rapid postoperative recovery with significant clinical benefits.

Differential hypoxemia during peripheral cardiopulmonary bypass.

Minimally invasive cardiac surgery (MICS) for mitral valve repair often uses cardiopulmonary bypass (CPB) through peripheral femoro-femoral cannulation. A rare complication of differential hypoxemia can cause upper body hypoxia. A 38-year-old man with Barlow Syndrome underwent MICS mitral valve repair with peripheral CPB. During the procedure, his right upper limb SpO2 dropped to 65% due to dislodgement of the venous cannula from the superior vena cava (SVC), causing inadequate right heart venous drainage, leading to differential hypoxemia. Repositioning the venous cannula to the SVC restored SpO2 to 100%, allowing the surgery to proceed without complications. Differential hypoxemia happens when deoxygenated blood from the left ventricle mixes with oxygenated CPB blood. A literature review found only one previous case of this complication on peripheral CPB for MICS. Unlike our case, Kanda et al. monitored cerebral hypoxia, underscoring the importance of cerebral oxygenation monitoring in future MICS procedures due to higher stroke risk compared to conventional sternotomy. We recommend cerebral oxygenation monitoring in future MICS to prevent neurological complications, and highlight the need for effective team communication in the cardiac operating theatre.

Comprehensive approach to clinical decision-making strategy, illustrated by the Gulf War.

Throughout the history of medicine, clinical decision-making strategies have largely been dependent on the implementation of novel technologies. Artificial intelligence (AI) has not only made a leap into a new dimension of medical measures & decisions' shaping but has also served as a strategic backup of medical practice. Due to its nature, and military technologies in use, the Gulf War (1990-1991) is considered to be the verge of the contemporary warfare era. Soldiers had been engaged into a highly complex military operation theatre contaminated with both chemical and radiological noxious agents, and burdened with side-effects of prophylactic measurements. The aim of this review is to present a comprehensive approach to clinical decision-making strategy using theGulf War veterans' syndrome as an example. The model is based on the processing of all data coming from the military operation theatre and their unification with medical data, so as to obtain the final product, i.e.,the decision needed for a personalised therapeutic approach. Due to the complexity and a huge amount of data gathered at a given location in a given time, the functioning of this model unanimously calls for the interlace between military system AI and that of the medical sector.

Ureteric stenting outside of the operation theatre: challenges and opportunities.

To evaluate the safety, efficacy, tolerability, and cost-effectiveness of bedside or office-based ureteric stent insertion. Following Preferred Reporting Items for Systematic Reviews and Meta-Analyses-Protocols (PRISMA-P) and A MeaSurement Tool to Assess systematic Reviews (AMSTAR) 2 guidelines, we searched PubMed/the Medical Literature Analysis and Retrieval System Online (MEDLINE), the Excerpta Medica dataBASE (EMBASE), Google Scholar, Cochrane Central Register of Controlled Trials (CENTRAL), and Dimensions for English-language studies from 1978 to April 2023. Inclusion criteria focused on primary ureteric stent placements outside of the operating theatre (OT). A total of 15 studies involving 2072 stents were included. Success rates for correctly positioned stents in bedside or office-based insertions ranged from 60% to 95.8%, with most studies reporting ≥80% success rates. Common failure reasons included impacted stones and difficulty identifying the ureteric orifice. Pain and tolerability were assessed using various methods, with validated tools indicating moderate pain levels, but most patients would undergo the procedure again under local anaesthesia. Complication rates were generally low, with minor complications such as haematuria or postoperative fever being the most common. Procedural costs were significantly lower in non-OT settings, with estimates indicating savings of up to four-fold. Bedside or office-based ureteric stent insertion is a viable alternative to OT procedures, offering high success rates, manageable pain levels, low complication rates, and substantial cost savings. This approach is particularly advantageous in settings with limited OT access, highlighting its potential for broader adoption in urological practice. Future research should focus on standardising pain assessment methods and randomised studies.

Lethal Self-Administration of Atracurium: A Rarely Reported Case with Review of Literature.

Atracurium besylate is a nondepolarizing skeletal muscle relaxant first introduced in 1980. It is used during endotracheal intubation. It causes muscle relaxation during surgery or mechanical ventilation. When people consider suicide, they employ drugs found in their surroundings but not usually injectable muscle relaxants, which are not widely available. Studies on their use in suicide are rarely reported worldwide. This was a case of a 34-year-old male nursing staff, working in the general surgery department's operation theater complex, who was found unconscious in bed in his room in the morning with an empty syringe by the bedside. He was declared dead when brought to the emergency department. Forensic autopsy was conducted, and during the external examination, a needle puncture wound was found over the left cubital fossa. No other external other injuries were observed throughout the body. The toxicological analysis report indicated the presence of laudanosine in the vitreous humor, blood, urine, and skin from the puncture site and underneath vein. Also, the toxicological analysis of the empty syringe found at the crime scene revealed the presence of atracurium, confirming that the victim had administered a lethal dose of atracurium.

A-198 ESG Opportunities Harnessed During Pathology Transformation

Abstract Background Synnovis (a SYNLAB business) is in the process of delivering one of the largest Pathology transformation programmes in the UK, moving to a seven-site hub and spoke model from 89 laboratories over a dispersed geography. This remit also presented an opportunity for SYNLAB to deliver on its Environmental Social Governance (ESG) ambitions, by embedding ESG principles into programme delivery. There are several examples within each ESG pillar that demonstrate the benefits to be leveraged during transformation. Methods SYNLAB’s vision is to deliver sustainable diagnostic services. The integration of ESG into both the decision-making process and transformation structure ties these ambitions into programme benefits realisation. As well as setting performance level targets, the delivery of ESG benefits provide measures of success throughout the transformation journey, motivating stakeholders and building confidence along the way. Results Environment: The efficient use of space and LEAN principle design has consolidated the fragmented laboratory services spanning 15,000m2 into a bespoke, cutting-edge Pathology Hub with 6 spokes (hospital based services). The new hub building was designed to achieve BREEAM Excellent standards which measure performance against criteria such as energy management and efficiency, sustainable design and materials. The hub’s energy is from renewable-backed sources, and we will achieve a 47% reduction in CO2 equivalent (CO2e) emissions by unifying a significant proportion of its legacy footprint in this way. Further energy savings will be achieved through the associated analytical equipment consolidation, including a decrease from 50 to 14 microtomes, a decrease of 29 to 15 ventilated benches and a reduction of over 200 fridges and freezers across the service. In addition, substantial CO2e emissions savings are also being delivered by moving to a greener logistics provider, utilising electric vehicles and bikes. 2023 saw such emissions fall by 60% across Synnovis, helping to keep London’s air cleaner. Social: The transformation programme enables the hand back of over 6,000m2 of real estate to Synnovis’ NHS partners to use for critical hospital services (the equivalent of over 150 operating theatres). Governance Both internally and externally, ESG is integrated within the Synnovis organisational culture. For example, internally it applies mandatory sustainability metrics to its solution selection processes. These influenced the selection of Abbott’s Indexor solution to support the transformation of Blood Sciences, delivering a saving of over 2.8 million plastic sample bags every year. Externally, SYNLAB works with its partners to manage this substantial and complex transformation programme. Risk management is assured through transparency, securing confidence in the good use of public funds, ensuring responsiveness to customer and partner feedback, and ensuring accountability for and the delivery of targeted healthcare outcomes. Conclusions The integration of SYNLAB’s ESG strategy within the transformation programme is delivering tangible benefits across all ESG pillars. It has highlighted that in addition to the core outcome of services transformation, there are many more opportunities that can be realised as a result of making ESG an integral part of the pathology transformation programme.

Audit of oral neoplasms in children and young adults in Nigeria

BackgroundOrofacial neoplasms in children and young adults may differ significantly from those observed in adults. Our aim was to describe the epidemiological characteristics of histologically diagnosed orofacial neoplasms among children and young adults in Nigeria.MethodsThis was a multicenter cross-sectional study across geopolitical zones in Nigeria. Annual reports of clinical information and surgical biopsies submitted at the Oral Pathology Laboratory, clinic day registries, surgical day case registries and operative theatre registries were retrieved from January 2008 to March 2024. The relevant demographic data were obtained for each patient. The study subjects were categorized by age into children, adolescents and young adults. Tissue involvement was classified as soft tissue involvement, bony involvement or both soft tissue and bony involvement. The site and behaviour of the lesions were subdivided according to the ICD-10 codes. Statistical analysis was performed via the R programming language.ResultsA total of 1889 cases were observed during the period under review, with a mean age of 15 years. Cases were more common in females (52%) and in young adults (47%). Most cases were benign neoplasms (85%), and bony affectation (54%) was slightly predominant. Odontogenic tumours (38%) and fibro-osseous lesions (20%) were the most common category of lesions observed, whereas salivary gland tumours (2.2%) and neoplasms of epithelial origin (2.5%) were the least common. Neoplasms in children involved mostly soft tissues, whereas those in adolescents and young adults had a preference for bone (p < 0.001). In all age groups, benign lesions were mostly observed in the mouth and pharynx. For malignant lesions, in children, the bones of the skull and face were mostly involved, whereas in adolescents, the mandible was the predominant site (p < 0.001). In children, mesenchymal neoplasms were the most prevalent category of lesions, whereas in both adolescents and young adults, odontogenic tumours were more common. The proportion of malignant neoplasms in males was significantly greater than that in females (p < 0.001).ConclusionThis study revealed that although most biopsied orofacial lesions were more often benign, the proportion of malignant neoplasms in this population was greater than that previously reported.

Full of sound and fury.

The subject of noise in the operating theatre was recognized as early as 1972 and has been compared to noise levels on a busy highway. While noise-induced hearing loss in orthopaedic surgery specifically has been recognized as early as the 1990s, it remains poorly studied. As a result, there has been renewed focus in this occupational hazard. Noise level is typically measured in decibels (dB), whereas noise adjusted for human perception uses A-weighted sound levels and is expressed in dBA. Mean operating theatre noise levels range between 51 and 75 dBA, with peak levels between 80 and 119 dBA. The greatest sources of noise emanate from powered surgical instruments, which can exceed levels as high as 140 dBA. Newer technology, such as robotic-assisted systems, contribute a potential new source of noise. This article is a narrative review of the deleterious effects of prolonged noise exposure, including noise-induced hearing loss in the operating theatre team and the patient, intraoperative miscommunication, and increased cognitive load and stress, all of which impact the surgical team's overall performance. Interventions to mitigate the effects of noise exposure include the use of quieter surgical equipment, the implementation of sound-absorbing personal protective equipment, or changes in communication protocols. Future research endeavours should use advanced research methods and embrace technological innovations to proactively mitigate the effects of operating theatre noise.

Kinematic analysis of engagement and bending capabilities of a point-of-care, incremental skeletal fixation plate bending system

The current standard of care for skeletal reconstruction surgery is to join skeletal disunions with fixation plates and these plates are most commonly fit to bones through manual bending. The bending procedure is often performed in the surgical operating theatre with specialized pliers or, if available, lengthy pre-operative bending to fit a 3D printed skeletal model prepared on computer as part of a virtual surgical plan. Manual bending of fixation plates by eye or to a model can take considerable time. Repetitive bending at a single location can result in work hardening that increases the subsequent risk of fatigue failure. However, incremental forming systems may provide a solution to automatically bend fixation plates accurately, rapidly, and as little at any one location as possible. This paper is an investigation of the kinematics and manipulability of two versions of an incremental fixture plate bending system for Point of Care Manufacturing (POCM) of craniomaxillofacial (CMF) skeletal fixation hardware. The Automatic Plate Bender (APB) v1 is a minimal POCM system that is designed for simple straight plates with a constant incremental pitch. The APB v2 is a more complex POCM that is designed to accommodate a larger variety of standard plates. Kinematic and manipulability analysis demonstrate the engagement and bend classes that each system can accomplish, and identifies a critical singularity in the APB v2 mechanism. The paper concludes with two case studies in which a path planning algorithm uses a manipulability analysis to avoid singularities during incremental bending.

Perioperative Hypothermia in Surgical Patients: A Retrospective Cohort Analysis at a Busy District General Hospital.

Introduction Perioperative hypothermia is a common yet underreported complication of surgery. It results from various factors, including cold operating theaters, anesthetic effects, environmental exposure, exposed tissues, and the administration of cold intravenous or irrigation fluids. This study aims to determine the incidence of perioperative hypothermia in a district National Health Service hospital to assess the feasibility of a randomized controlled trial (RCT) for interventions to prevent hypothermia. Methods This retrospective study included the data of 200 elective surgical patients at North Manchester General Hospital from June 1, 2022, to August 1, 2022. Inclusion criteria were elective general surgery, urology, breast, and gynecology patients aged 18 to 60 years. Exclusion criteria included emergency cases and patients younger than 18 or older than 60. Temperature measurement data were collected from the anesthesia records of the patients at six phases: preoperative, pre-induction, intraoperative, post-procedure, recovery room, and post-recovery. Data collection included specialty, surgery duration, and the use of intraoperative fluid warmers. Statistical analysis was performed using StatsDirect software (StatsDirect Ltd, Wirral, UK). Results Among the 200 patients, the overall incidence of hypothermia was 4% preoperatively, 5% pre-induction, 12% intraoperatively, 11% postoperatively, 8% in recovery, and 6% post-recovery. Intraoperative hypothermia incidence was significant, given that active warming was applied to patients with preoperative hypothermia. Regression analysis showed no correlation between intraoperative temperature and the use of intraoperative fluid warmers. Pre-induction temperature was the most statistically significant predictor of intraoperative hypothermia. Conclusions This study highlights the need for active interventions to recognize and prevent perioperative hypothermia in elective surgical patients. Active pre-warming of patients, regardless of surgery type and duration, is feasible and potentially beneficial. Future research should include an RCT comparing active and passive warming strategies to evaluate their effectiveness in improving perioperative outcomes.

The Importance of Surgical Cutting Time as a Key Performance Indicator Alongside Touchtime Utilisation in Operating Theatre Efficiency Optimisation.

Aims The Getting It Right First Time(GIRFT) programme has set targets to achieve 85% touchtime utilisation by 2024/25. Touchtime utilisation is a measure of theatre productivity, defined as the time from the start of anaesthesia to the time a patient leaves the theatre for all cases on a defined theatre list as a percentage of total available theatre time. No published evidence examines touchtime utilisation as a measure of theatre efficiency and its correlation with surgical cutting time. This study aims to determine if there is a statistical relationship between touchtime utilisation and surgical cutting time, and whether the use of touchtime utilisation is sufficient to inform about surgical productivity. Methods A retrospective analysis of two orthopaedic theatres spanning 100 days at both a major trauma centre and an elective hospital in London was performed. Electronicrecords identifiedanaesthetic start time, knife-to-skin time, end-of-procedure time, and patient-leaving-theatre time. Time intervals were calculated and the relationship between touchtime utilisation and surgical cutting time was assessed using Pearson's correlation coefficient (r). Results The mean total touchtime was 403 minutes (SD, 84 minutes) at the major trauma centre and 383 minutes (SD, 103 minutes) at the elective hospital. The mean total surgical cutting time was 259 minutes(SD, 72 minutes) at the major trauma centre and 233 minutes (SD, 75 minutes) at the elective hospital, from a total available time of 510 minutes per list. There was a significant correlation between touchtime and surgical cutting time at both hospitals (elective hospital: r (198) = 0.815, p < 0.001; major trauma centre: r (198) = 0.892, p < 0.001). The mean touchtime utilisation was 79.31% for the major trauma centre and 75.20% for the elective hospital; however, the mean total surgical cutting time was 51% and 46%, respectively, of total available time. Conclusion Despite a good correlation between touchtime and surgical cutting time, the range between these measures suggests that using touchtime utilisation alone to measure theatre efficiency may not sufficiently inform about efficient practices. We suggest complementing touchtime utilisation data with surgical cutting time may provide more information to contextualise efficiencies or inefficiencies in an operating theatre.

Evaluation of perfusion index to predict hypotension in lower segment caesarean section under spinal anaesthesia

Background: Spinal Anaesthesia is the most popular choice for elective caesarean section. Both general anaesthesia and regional anaesthesia are acceptable techniques for anaesthesia for elective and emergency caesarean sections. Objectives: The study aimed to investigate the role of the perfusion index in predicting the incidence of hypotension following spinal anaesthesia in parturients undergoing elective lower segment caesarean sections. Methods: A prospective, observational study was carried out among sixty parturients posted for elective caesarean section. The study was conducted in the operation theatres of Vardhman Mahavir Medical College and Safdarjung Hospital, New Delhi. About 60 participants were interviewed for the study. Data were entered and analysed with the help of the Statistical Package for Social Science (SPSS) version.16. Results: Sixty eligible ASAI (American society of anaesthesiologist’s physical status classification) parturients scheduled for elective caesarean section were divided into two groups pre-operatively after determining their baseline Perfusion Index (PI) as those with PI ≤ 3.5 and those with PI &gt; 3.5 using a Masimo® pulse oximeter probe. When comparing the heart rate at time intervals among the two groups, it became increasingly clear that those with baseline PI &gt; 3.5 had generally higher heart rate especially immediately after the block and at 2nd, 4th, 6th,8th, 10th, 12th, 14th and 20th minutes. Conclusion: The study concludes that a Perfusion Index &gt; 3.5 is associated with a higher incidence of hypotension in lower segment caesarean section under spinal anaesthesia. The hemodynamic parameters such as increased heart rate and significantly lower systolic, diastolic and mean arterial pressures in parturients with baseline PI &gt; 3.5 suggest that these patients have lower baseline SVR and depleted autonomic resilience to hypotension compared to those with baseline PI ≤ 3.5. High BMI seems to be significantly associated with high baseline PI.

Cost Analysis of Pelvic Exenteration Surgery for Advanced Pelvic Malignancy.

Pelvic exenteration (PE) is a radical procedure involving multi-visceral resection for locally advanced pelvic malignancies. Such radical surgery is associated with prolonged operating theater time and hospital stay, as well as a substantial risk of postoperative complications, and therefore significant financial cost. This study aimed to comprehensively detail the inpatient cost of PE at a specialist center in the Australian public sector. A retrospective costing review of consecutive PE operations at Royal Prince Alfred Hospital in Sydney between March 2014 and June 2022 was performed. Clinical data were extracted from a prospectively maintained database, and in-hospital costing data were provided by the hospital Performance Unit. All statistical analyses were performed using SPSS. Pelvic exenteration was performed for 461 patients, of whom 283 (61 %) had primary or recurrent rectal cancer, 160 (35 %) had primary or recurrent non-rectal cancer, and 18 (4 %) had a benign indication. The median admission cost was $108,259.4 ($86,620.8-$144,429.3) (Australian dollars [AUD]), with the highest costs for staffing followed by the operating room. Overall, admission costs were higher for complete PE (p < 0.001), PE combined with cytoreductive surgery (CRS) (p < 0.001), and older patients (p = 0.006). The total admission cost for patients undergoing PE reflects the complexity of the procedure and the multidisciplinary requirement. Patients of advanced age undergoing complete PE and PE combined with CRS incurred greater costs, but the requirement of a sacrectomy, vertical rectus abdominal flap reconstruction, major nerve or vascular excision, or repair were not associated with higher overall cost in the multivariate analysis.

Medication stewardship in the operating theatre in Malaysia: A quality improvement project.

A quality improvement project ('Safe Anaesthesia for ALL-SEAL') was implemented to reduce preventable medication errors and drug wastage in the operating theatre (OT) of a tertiary hospital. The primary objective of this quality improvement project was to prevent the incidence of medication errors, and the secondary objective was to reduce the wastage of unused drugs. A pre-intervention questionnaire and an audit survey were performed, and multidirectional interventions were designed post-survey. A post-intervention survey was conducted to evaluate effectiveness. The incidence of medication errors, including near misses, was assessed for root causes. Unused drugs drawn or diluted in syringes were recorded daily in each OT. The weekly drug orders and mid-week reordering frequency were also monitored. The data were reported as simple means and percentages. Ninety-eight anaesthesia care providers participated in the survey (72.4% doctors and 27.6% anaesthetic nurses). Pre-intervention, 76.1% of respondents had experienced medication errors during their practice. Common errors included misidentification of ampoules or vials (65.2%), miscalculation of dosages (65.2%), improper syringe labelling (56.5%), accidental drug omission (54.3%) and wrong prescriptions (39.1%). The main sources of errors were fatigue/overwork (80.4%) and a hectic OT environment (71.7%). Post-intervention, no incidents of medication errors were reported. In addition, there was a significant reduction in drug wastage. The SEAL project positively prevented medication errors and reduced drug wastage, which should be further validated in other clinical settings.

FP8.9 - Surgical Synergy: Rethinking waste for a greener tomorrow in General Surgery

Abstract Aims Every year in the UK, the NHS sends approximately 156,000 tonnes of clinical waste for processing via high temperature incineration or other treatments, and then to landfill sites. Majority of the waste produced by hospitals comes from the operating theatres (OTs). In this study, we aim to assess the current implementation of waste management strategies at an NHS district general hospital (DGH) in general surgery. We have investigated a variety of cases and have surveyed the volume of waste produced. Methods We observed elective and emergency general surgery cases across 2 weeks. For each case, we weighed the waste produced- both recyclable and non-recyclable (clinical). Results This study included four umbilical hernia repairs, two right hemicolectomies, one examination of rectum under anaesthesia with seton insertion and three laparoscopic cholecystectomies. Across the operations, the average total waste produced was 5.9kg. The average clinical waste and recyclable waste was 4.7kg and 1.2kg, respectively. Additionally, a significant proportion of non-infectious recyclable waste was incorrectly placed into the clinical waste bin. Conclusion On average 5.9kg of waste is produced after a general surgery operation. Most of this waste is clinical and not recycled. However, the clinical waste can be cut down by appropriate waste segregation, thus reducing the impact on the environment as well as reducing the cost of incineration.

FP8.11 - Surgical Site Infection Post-operation (gowning vs not gowning): A District General Hospital Experience

Abstract Aims Increasing evidence shows that surgical site infection (SSI) does not differ significantly between main operation theatre and field sterility for many surgical procedures. This audit aimed to assess the rate of surgical site infection (comparing the operating surgeon using a disposable gown vs not using one) for emergency/elective skin procedures like uncomplicated incision and drainage of abscess, excision of lipoma, sebaceous cyst, and pilonidal sinus. Methods The electronic database was used to collect data (September-October 2023) on the type of surgery performed, number of theatre staff scrubbed in. Poster displays and informal education were used to raise awareness of theatre wastage (November 2023). All were advised to wear an apron, mask, sterile gloves, and field sterility only for uncomplicated cases. Data was recollected (December 2023-January 2024). Results 54 cases were performed in September and October 2023. All theatre staff scrubbed in and 160 gowns were used. 5/54 (9.3%) returned with wound infection and managed with antibiotics. The median of the number of days in which the patients returned post-operatively is 7 days. 24 cases were performed from December 2023-January 2024. Theatre staff in 5/24 cases did not scrub in and none of these patients returned with wound infection. Out of the other 17/24 cases, 5/17 (29.4%) returned with wound infection. Conclusions With the limitation of small sample size and multi-factorial aetiology of wound infection, surgeons who did not gown up had no increased risk of wound infection. The higher monetary and environmental costs of complete gowning without improvement of patients’ care are unjustifiable.

FP8.12 - Theatre time utilisation in General Surgery at a district hospital in NHS

Abstract Aim To understand the operation theatre time utilisation in the Department of General Surgery at a busy district NHS hospital. The time spent in each step of surgery and operating list at large and understand the patterns of cancellations and its’ predictors. Method Retrospective study of all elective general surgical patients from 1 Dec 2021 to 15 May 2022. Emergency cases were excluded and statistics were performed on Statsdirect3. Results Total surgeries performed were 182 with 153 true and 41 false cancellations. Mean surgical time was 84.5 minutes (mean 73min) for all general surgical cases. Lap cholecystectomies had a mean time of 92.3mins, upper GI surgeries took 178.6mins (mean) EUA and other procedures was 30.86mins, inguinal hernia 77.2mins, umbilical hernia 68.5mins. Mean anaesthesia time was 33 mins (median 31mins). Theatre time utilised was 56.45%, anaesthesia time utilised was 15.85%, surgery time utilised was 40.60% and non-clinical time was 43.55%. Mean delay in sending for first patient was 31.58mins (median 29min). Delay in calling for first patient is statistically significant (p=0.00015) for cancellation for the last patient in the list. Mean gap in between 2 consecutive cases was 35.74mins (median 22min). Conclusion Delay in sending for the patient will lead to cancellation of the last patient on the list which is proven statistically. We utilised 82.19% of the total surgery days and cancelled 17.81% days. Non clinical time comprised of 43.55%.

Impact of Outpatient Care and Hybrid DRG - Impact on Hospitals

Hybrid DRG is a new form of remuneration in the German healthcare system. Selected OPS codes apply to all sectors, which, in combination with a specified ICD, result in a flat fee, regardless of whether the patient is managed as an outpatient or inpatient. This new form of billing has a huge impact on hospitals. The revenue situation is significantly worse than under the previous form of billing and requires adjustments at the locations. If these changes are not made, supply would be demonstrably deficient. Therefore, increased outsourcing to an outpatient setting is necessary. The advantages are the efficient use of staff and a structured selection of patients. Ideally, outpatient surgical units have an advantage here, but outpatient paths can also be created via separate areas in the central operating theatre. Using the example of inguinal hernia, over 50% of patients can be treated on an outpatient basis if selection is optimised. The disadvantage of this form of billing is the necessary financial reserve for innovations, training and the use of expensive operational aids. With the addition of incisional hernias to the hybrid catalogue in 2025, future care will become more cost-oriented.

Enhancing Operating Theatre Conduct through Virtual Reality Simulation

Abstract In hospital operating theatres, inadvertent violations of behavioural rules by novices may increase risk. Virtual reality (VR) can provide a training environment to ease the burden for healthcare professionals. Our work develops and tests a VR training program for correct operating room (OR) etiquette. The VR simulator incorporates realistic 3D models as well as corresponding character and object interactions. The simulator provides a comprehensive interactive educational game covering hand hygiene and disinfection, surgical attire and OR behaviour. 13 clinical trainees and experts assessed acceptance and perceived benefit of the simulator. This evaluation shows promise in supporting clinical staff education. Future developments aim to enhance effectiveness, including the integration of hand tracking and a more detailed selection of interactive tasks.