Converging rapid deployment prostheses with minimal access surgery: analysis of early outcomes

Background Sutureless prostheses may have added benefit when combined with minimal access surgery, although this has not been fully assessed in the literature. This study aims to provide a comparative analysis of the Perceval valve comparing median sternotomy (MS) with mini-sternotomy (MIS). Methods A retrospective analysis of prospectively collected data was conducted for all isolated aortic valve replacement (AVR), using the Perceval valve, for severe aortic stenosis cases in the period 2014 to 2019. Patients undergoing concomitant valve or revascularisation surgery were excluded. Results A total of 78 patients were included: MS group 41; MIS group 37. Operatively, bypass times were comparable between MS and MIS groups (mean 89.3 vs 83.4, p = 0.307), as were aortic cross clamp times (58.4 vs 55.9, p = 0.434). There were no operative deaths or new onset post-operative neurology. MIS was a predictor of reduced stay in the intensive care unit (coef − 3.25, 95% CI [− 4.93, − 0.59], p = 0.036) and hospital stay overall (p = 0.004). Blood transfusion units were comparable as were the incidence of heart block (n = 5 vs n = 3, p = 0.429) and new onset atrial fibrillation (n = 15 vs n = 9, p = 0.250). Follow-up echocardiography found a significant improvement in effective orifice area, left ventricular dimension and volume indices, and LVEF (p > 0.05) for all patients. Multivariate analysis found mini-sternotomy to be a predictor for reduced LV diastolic volume (coef − 0.35, 95% CI [− 1.02, − 0.05], p = 0.05). Conclusions The combination of minimal access surgery and sutureless AVR may enhance patient recovery and provide early LV remodelling.

Mini-laparoscopic cholecystectomy: evolution of a new technique

Background Since the first laparoscopic cholecystectomy (LC) in 1985, there has been much advancement in laparoscopic surgery in terms of reduction in number and size of ports. We report a new technique of performing mini laparoscopic cholecystectomy using only three ports, 5 mm each. The indications of this procedure include GB polyps, GB dyskinesia, microlithiasis, and idiopathic pancreatitis. Case presentation In this case report, we present a new technique that has been performed safely in a 49-year-old male patient with pancreatitis caused by microlithiasis. This was performed using a novel three port procedure consisting of only 5 mm ports, and he was discharged as a day case without complications. Informed patient consent was obtained. Conclusions The fundamentals of this mini-LC technique remain the same as that of a standard laparoscopic cholecystectomy throughout the procedure. It is a feasible option in selected cases, and it has the potential to further augment the inherent benefits of minimal access surgery namely less analgesia, improved cosmesis and faster recovery. Further trials will help ascertain its potential advantages.

EP.WE.31A snapshot audit on the current practice of minimal access surgery in the UK during COVID-19 pandemic

Aims COVID-19 is an ongoing global pandemic that poses potential increase in the risk of post-operative complications. Early guidelines placed an embargo on minimal access surgery, aiming to minimise risk to patients and the surgical team through aerolisation of the virus. We aimed to assess the practice of minimal access surgery during the peak of the pandemic and associated surgical outcomes. Methods An email link to an online questionnaire was distributed to a variety of surgical specialties via the Royal College of Surgeons COVID group and ALSGBI members. Data collection was carried out over a 4-month period. Data assessed included screening methods, case volume, surgical approach and patient outcomes. Results A total of 118 responses from a variety of surgical specialties were collected over 59 units, ranging in grade from Consultant to SHO/Core Trainee. The volume of minimal access procedures decreased during the pandemic from 94.9% of units to 39.0% (P < 0.001), with a greater percentage opting for an open approach (54.2% vs 39.0%, P < 0.001). Combining screening methods was a favoured approach, and it was frequently used alongside a designated ‘Clean’ theatre. A small proportion of patients suffered from post-operative COVID-19 complications (15.3%), but COVID-19 mortality was low. Conclusions Whilst the risk of COVID-19 infection was not completely abolished perioperatively throughout the pandemic, it appears to be minimised by use of adequate screening with designated clean areas. It would therefore support guidelines advocating continued use of minimal access surgery during peaks of COVID-19 if prudent peri-operative measures are taken.

EP.WE.555Impact of COVID 19 on Renal access surgery

Aims To assess the impact of COVID -19 on renal access surgery. Methods Electronic patient records and renal ware were accessed to obtain data of all renal access activity during the COVID period. Results There as a shutdown of all elective activity which affected the renal access surgery as well. No new Arterio venous fistulas (AVFs) were created in the time period 14 March to 05th May 2020. No pre-fistula mapping scans were performed. All new starters started with a tunneled dialysis line. In the recovery phase special theatre sessions were asked for and procedures carried out in Day surgery and in independent sector (n-18). A total of 203 new AVF’s were created compared to 272 the year before a fall of 25%. There were 48 patients admitted with blocked access, 70% of whom underwent radiological intervention compared to 52% in 2019. Surgical intervention was offered to just 4% compared to 25% in 2019. The number of access abandoned was 27% in 2020 vs 19% in 2019. Conclusion COVID-19 adversely affected the renal access population and none of the British Renal access surgery targets were met for 2020.

TP5.2.7 COVAS: Assessing the impact of Covid-19 On VAscular Surgery: A Single Centre Experience

Aims To quantify the impact Covid-19 has had on vascular surgery during the pandemic at our unit compared to previous operating activity levels at a single vascular centre. Methods Retrospective analysis of all vascular operations undertaken in the department dating from 11th March 2020 to 16th November 2020. Historical average data (HD) from the previous five years (2015-2019) over the same timeframe were then collected for comparison. Results During the Covid-19 pandemic 237 vascular operations were performed which represented a 48% operative reduction compared to average HD (454). 57 elective day-case procedures (varicose veins/temporal artery biopsies/renal access) were performed compared to a median of 259 from HD. Varicose vein surgery had an 79% reduction (37 vs 180). Renal access surgery was unaffected (15 vs 9). Major limb revascularisation procedures were reduced by 41% (36 vs 61) however this did not equate to any increase in amputation rates (79 vs 84). There was no reduction in carotid procedures performed during the pandemic (26 vs 30). There was a 60% (14 vs 35) reduction in all types of aneurysm procedures. Conclusion The Covid-19 pandemic has dramatically affected vascular surgery at our unit. In terms of arterial work the largest disparities compared to previous years was major revascularisation and aneurysm surgery. In respect to elective day case procedures, venous work has unsurprisingly been hardest hit which, once resources allow, will require significant provision to overcome the shortfall. This quantitative study can direct future service delivery and prepare for the post-pandemic recovery.

TP10.2.4Access surgery for dialysis patients during COVID-19

Aims To describe the organisation of a triage system and COVID-19-free surgical pathway, and to assess the outcomes after its implementation for planned dialysis access surgery for patients during the first wave of the COVID-19 pandemic in the UK. Methods In response to the suspension of elective operations due to SARS-CoV-2 outbreak, we devised a COVID-19 free surgical pathway performed in NHS and an independent hospital. We audited the outcomes of its application in patients requiring access surgery between 17 April and 15 September 2020. The data was collated, analysed, and presented at clinical governess. We are looking to re-audit for the second wave in the coming months. Results A total of 235 cases were listed, and 203 procedures were performed. Thirty-two cases were cancelled and the top reason for cancellation was patient refusal. Of the procedures carried out, 47% (n = 96) were arteriovenous fistula formation, 42% (n = 84) were peritoneal catheter procedures, and 11% (n = 23) were arteriovenous grafts. The postoperative complication rate by day 7 was 13.3% (n = 27), by day 30 was 6.9% (n = 14) and they are similar to pre-COVID outcomes. By performing a definitive dialysis access, we avoided the significant morbidity and mortality associated with tunnel-line based dialysis. No patients acquired COVID-19 or died from its related illnesses in 30 days. Conclusion Our results confirmed that our pathway was effective in delivering dialysis access in a timely manner and COVID safe. Our model is safe, easy to replicate COVID-19-free pathway and can be used during similar challenges in the future.

Assessment of the training program for Versius, a new innovative robotic system for use in minimal access surgery

ObjectivesThe Versius surgical system has been developed for use in robot-assisted minimal access surgery (MAS). This study aimed to evaluate the effectiveness of the Versius training program.DesignA 3.5-day program following 10 hours of online didactic training. Participants were assessed during the technical training using the Global Evaluative Assessment of Robotic Skills (GEARS).SettingDry box exercises were conducted in classrooms, and wet lab sessions simulated an operating room environment using cadaveric specimens.ParticipantsSeventeen surgical teams participated; surgeons represented general, colorectal, obstetrics/gynecology, and urology specialties. All surgeons had previous laparoscopic MAS experience, while experience with robotics varied.Main outcomes measuresParticipants were scored on a five-point Likert Scale for each of six validated GEARS domains (depth perception, bimanual dexterity, efficiency, force sensitivity, autonomy, and robotic control). Additional metrics used to chart surgeon performance included: combined instrument path length; combined instrument angular path; and time taken to complete each task.ResultsParticipants demonstrated an overall improvement in performance during the study, with a mean GEARS Score of 21.0 (SD: 1.9) in Assessment 1 increasing to 23.4 (SD: 2.9) in Validation. Greatest improvements were observed in the depth perception and robotic control domains. Greatest differences were observed when stratifying by robotic experience; those with extensive experience consistently scored higher than those with some or no experience.ConclusionsThe Versius training program is effective; participants were able to successfully operate the system by program completion, and more surgeons achieved intermediate-level and expert-level GEARS scores in Validation compared with Assessment 1.

TP10.2.8Adaptation in providing renal access surgery service in response to covid-19 pandemic- a single centre experience

Aim Evaluate impact of Covid-19 pandemic on renal access surgery and changes in practice towards counteracting limitations to provide safe and effective peritoneal and haemodialysis. Methods Retrospective review of procedures for dialysis in ESRD patients from institutional databases in a single centre was carried out. Patients undergoing peritoneal catheter insertions (PD) or AV fistula formation (HD) between March 2020 and October 2020 were compared with similar period in 2019. Demographic, procedure and postoperative outcome data was collected. Results Between March and October 2019, 143 combined PD and HD procedures were performed compared to 98 in the same time period in 2020. The mean age of patients was 65 ± 15 years and 62 ± 12 years, respectively. In 2020, 26 patients had PD catheter insertion and 22 patients in 2019. 18% of these were performed laparoscopically in 2019 compared to 33% in 2020. The same day discharge rate increased to 34% from 22%. Patients having complex fistula procedures including basilic vein transpositions and grafts requiring overnight stay dropped from 83% patients (n = 23) to 71% (n = 7) in 2020. In 2019, 80% (n = 49) patients had radio-cephalic fistula performed as same day procedure increasing to 98% (n = 22) in 2020. Day-surgery unit utilisation increased from 55% to 71%. Same day discharge rate increased from 53% to 66%. There were no readmissions. Conclusions Adaptations in terms of increased support for same day surgery even for complex renal access procedures has improved service. A greater proportion of renal access service can be same day procedures avoiding inpatient stay.