Lithotomy Research Articles

(102) EVIDENCE-BASED STRATEGIES FOR PREVENTING LOWER-LIMB COMPLICATIONS SECONDARY TO PROLONGED USE OF THE DORSAL LITHOTOMY POSITION

Abstract Introduction Patient positioning at the time of surgery plays a critical role in determining patient outcomes. Specific to patients undergoing genital gender-affirming surgery (gGAS), these patients are required to be placed in the lithotomy position to access the pelvis and perineum for their procedures. Lower-extremity injury due to prolonged surgical time in the lithotomy position can have significant post-operative morbidity affecting patient outcomes. This risk is increased in patients undergoing gGAS procedures due to high surgical complexity and especially long operative times as compared to other surgical procedures. Careful attention must be placed on the patient’s specific position perioperatively due to potential injury risk. Prolonged stasis can cause injuries ranging from mild soft-tissue injuries which rapidly resolve, such as mild pressure injuries to bony prominences, to severe injuries including pressure ulcers, nerve injuries, rhabdomyolysis, and compartment syndrome. These complications can have lasting impact on the patient, with associated morbidity and mortality risk, and can also impact healthcare systems through additional dollars spent caring for patients who suffer these complications and their associated rehabilitation, and legal recourse on behalf of the patient who suffered these severe complications. Objective Our study aimed to describe our technique for preventing lower extremity injuries in the dorsal lithotomy position, and to evaluate our positioning-related post-operative complications and rates. Methods We describe our technique for lower-limb positioning in the dorsal lithotomy position, with an emphasis on injury prevention for patients undergoing gGAS. We assessed positioning-related outcomes and complications among patients undergoing gGAS for prolonged periods (>300 minutes) in the lithotomy position between January 2017 to March 2023. Results A total of 227 patients underwent 310 gGAS procedures were included in our study (156 masculinizing: 154 feminizing gGAS procedures). Mean operative time was 495.5 minutes +/- 156.5 minutes (SD) (Range 300–1095 minutes) (Figure 1a). A total of 6/227 (2.6%) patients (2 masculinizing and 4 feminizing surgical patients) had transient, self-limited LE pain post-operatively. No (0%) patients had major or chronic complications including chronic nerve injury, pressure ulcers, rhabdomyolysis or compartment syndrome (Figure 1b). Our patient positioning employs the use of ½ inch foam placed to surround the lower extremity, ensuring that all at-risk areas of compression are adequately protected when placing the patient’s leg in the Allen stirrups whilst in the lithotomy position (Figure 1d). In addition, a perioperative list is also utilized with regular leg checks every 1.5–2 hours with nursing documentation and also, ensuring patients are able to move their lower extremities without any pain post-operatively (Figure 1c). Conclusions Our study is the first to describe a specific technique and outline strategies for protecting the lower extremities to prevent injuries in patients undergoing prolonged surgical procedures in the lithotomy position. The low complication rates associated with our technique warrants attention to further refine this technique, and, to integrate these strategies into operating-room programs across diverse specialties. Disclosure No.

(039) DIVERSITY OF CAUSES OF DYSPAREUNIA IN REAL CLINICAL PRACTICE IN THE OUTPATIENT GYNECOLOGY DEPARTMENT

Abstract Introduction Dyspareunia is a women's sexual health problem that still often goes undiagnosed, despite its high prevalence and negative impact on sexual, marital and psychological well-being. Genito-pelvic pain/penetration disorder (GPPPD) refers to significant pain and difficulty with penetrative sex that lasts for at least six months and might be caused by various diseases alone and their combinations. Objective Thus, the purpose of this study is to determine the contribution of different conditions to the total number of patients who applied for a primary appointment for GPPPD. Methods Women who agreed to participate in the study were presenting complaints on painful intercourse or inability to have intercourse for more than 6 months. Patients underwent a gynecological examination consisted of inspection, Q-tip testing, pelvic floor muscle testing and bimanual palpation in the lithotomy position (if it was possible). Diagnoses were documented according to the International Classification of Diseases Tenth Revision World Health Organization guidelines. Pain was assessed via the McGill Pain Questionnaire and a visual analogue scale. Assessment of pelvic floor muscle dysfunction was based on an International Continence Society report on the terminology for pelvic floor muscle assessment. Vulvar pain conditions were classified based on the consensus vulvar pain terminology committee of the International Society for the Study of Vulvovaginal Disease, the International Society for the Study of Women's Sexual Health, and International Pelvic Pain Society. Statistical analyses were performed by SPSS Statistics. Results The average age of the examined women was 30,63±0,69 years. As a cause of GPPPD vaginismus and dyspareunia were diagnosed in 19.31 and 80.69 % respectively. Predominant cause of dyspareunia was pelvic floor muscles dysfunction (66,19%) which was combined with other pathologies (scar deformity of the perineum, endometriosis and chronic pelvic pain, candidiasis, etc.) in 20 cases. The percentage of women diagnosed with endometriosis without the formation of central pain mechanisms was 11.36%. The overlapping chronic pain conditions such as migraine, interstitial cystitis/bladder pain syndrome, irritable bowel syndrome, endometriosis and vulvodynia were diagnosed in 21.13% patients with dyspareunia. Dyspareunia due to vaginal atrophy associated with lactation, combined oral contraception use and menopause was diagnosed in 4 patients (2.82%, 1.41% and 1.41%, respectively). Scar changes of the perineum due to traumatic delivery or episiotomy amounted to 4.23%. Lichen planus was diagnosed in one patient (1.41%). Vulvodynia was diagnosed in 8 patients with dyspareunia (11.26%) and was associated with pelvic floor tension myalgia and pelvic floor myofascial pain syndrome in 75% of cases. Conclusions GPPPD can be caused by various conditions with significant involvement of the pelvic floor muscles in the process of pain formation. Taking into account the risk of overlapping chronic pain conditions, a multidisciplinary approach is required in the treatment of this group of patients. Disclosure No.

Clinical efficacy of ureteroscopy-assisted laparoscopic ureteroplasty in the treatment of ureteral stricture after pelvic surgery

ObjectiveThis study is to investigate the safety and efficacy of ureteroscope-assisted laparoscopic ureteroplasty in treating ureteral stricture after pelvic surgery.MethodsA retrospective analysis of the clinical data of 95 patients treated for ureteral stricture at Ganzhou People's Hospital from June 2017 to March 2023 after pelvic surgery. In this group, 49 patients underwent ureteroscope and laparoscopic ureteroplasty under lithotomy position. The control group consisted of 46 patients who underwent simple laparoscopic ureteroplasty in a supine position. Postoperative data from both groups were collected and compared, including operation time, amount of blood loss during surgery, postoperative hospital stay, incidence of complications, success rate of ureteroplasty, and effectiveness of the operation.ResultsThe success rate of end-to-end ureteral anastomosis in the observation group was 93.88%, and the operation effectiveness rate was 100%. The success rate in the control group was 78.26% and the operation effectiveness rate was 89.1%.The average operation time and intraoperative blood loss in the observation group were (121.3 ± 44.6) min and (137.5 ± 34.2) ml, respectively, while in the control group they were (151.2 ± 52.3) min and (165.6 ± 45.8) ml, the difference were statistically significant (P < 0.05). The incidence of perioperative complications in the observation group was 2%, significantly lower than that in the control group (19.6%) (P < 0.05).ConclusionUreteroscope-assisted laparoscopic ureteroplasty for ureteral stricture after pelvic surgery has the advantages of shortened operation time, increased success rate, and reduced incidence of complications, making it an optional surgical scheme in clinical practice.

Dilip's Transmucosal Internal Sphincterotomy: A Simplified Approach to Lateral Internal Sphincterotomy for Fissure in Ano.

Fissure in ano is a prevalent and painful condition, typically treated by lateral internal sphincterotomy after conservative measures fail. Dilip's transmucosal internal sphincterotomy introduces a simplified approach that reduces the risk of damaging the external sphincter, making it particularly suitable for less experienced surgeons. This innovation offers a less invasive method with minimal risk of incontinence, providing a safer, more accessible option. Transmucosal internal sphincterotomy simplifies the internal sphincterotomy process, offering a tailored approach that eliminates the need for extensive dissection. This method allows surgeons complete control over the internal sphincter bundle, facilitating a precise, customizable cut without the risks associated with traditional internal sphincterotomy, especially in obese patients where the intersphincteric groove is not visible, leading to potentially harmful blind incisions. The procedure is performed under saddle block anesthesia with the patient in the lithotomy position. A distinctive approach involving the use of retractors and stay sutures allows the internal sphincter to be made prominent and secured without extensive dissection. The division of the internal sphincter is achieved through a minimal mucosal incision, requiring no closure and significantly reducing postoperative pain and complications. Between December 2020 and February 2022, 124 patients received transmucosal internal sphincterotomy, showing significant benefits with a median operative time of 7 minutes and low postoperative pain. With a 2.5% infection rate effectively managed and a 3% transient incontinence rate, the majority healed within 9 weeks. Recurrence was rare at 1.6%. Transmucosal internal sphincterotomy presents significant advantages over traditional internal sphincterotomy, including reduced pain, lower risk of complications, such as hematoma, abscess, or fistula formation, and the absence of painful postoperative nodules. The success of transmucosal internal sphincterotomy suggests that it should be incorporated into surgical education, offering a less daunting and more reproducible method for treating fissure in ano that is especially beneficial for junior surgeons and improving patient outcomes.

The relationship between stone-free and patient position in retrograde intrarenal surgery: a randomized prospective study

PurposeResidual fragments not removed with urinary stone surgery may become symptomatic. In this context, this study was carried out to investigate the effect of performing retrograde intrarenal surgery, which is conventionally performed in the lithotomy position, in the modified lithotomy position (Trend-side) on stone-free rates following the surgery.MethodsThis prospective study consisted of 100 patients with a single kidney stone smaller than 2 cm between 2021 and 2023. These patients were randomized into two groups of 50 patients each to be operated on in the conventional lithotomy and Trend-side positions. Variables were compared using independent t test for continuous variables and chi-square test for categorical variables.ResultsThere was no significant difference between the lithotomy and Trend-side position groups in terms of preoperative size, density, location of the stone, and hydronephrosis degree. Stone-free rate was 72% (n = 36) in the lithotomy group and 92% (n = 46) in the Trend-side group. Hence, there was a significant difference between the groups in the stone-free rate in favor of the Trend-side group (p = 0.009). Fragmentation time was statistically significantly shorter in the Trend-side group than in the lithotomy group (34 ± 17 min vs. 43 ± 14 min; p = 0.006). There was no significant difference between the groups in postoperative complication rates.ConclusionPerforming retrograde intrarenal surgery in the Trend-side position shortened the duration of fragmentation compared to the lithotomy position and was associated with higher stone-free rates. In conclusion, the Trend-side position can be safely preferred in patients undergoing retrograde intrarenal surgery due to kidney stones.

Impact of shear stress on sacral pressure injury from table rotation during laparoscopic colorectal surgery performed in the lithotomy position

This study aimed to evaluate the impact of shear stress on surgery-related sacral pressure injury (PI) after laparoscopic colorectal surgery performed in the lithotomy position. We included 37 patients who underwent this procedure between November 2021 and October 2022. The primary outcome was average horizontal shear stress caused by the rotation of the operating table during the operation, and the secondary outcome was interface pressure over time. Sensors were used to measure shear stress and interface pressure in the sacral region. Patients were divided into two groups according to the presence or absence of PI. PI had an incidence of 32.4%, and the primary outcome, average horizontal shear stress, was significantly higher in the PI group than in the no-PI group. The interface pressure increased over time in both groups. At 120 min, the interface pressure was two times higher in the PI group than in the no-PI group (PI group, 221.5 mmHg; no-PI group, 86.0 mmHg; p < 0.01). This study suggested that shear stress resulting from rotation of the operating table in the sacral region by laparoscopic colorectal surgery performed in the lithotomy position is the cause of PI. These results should contribute to the prevention of PI.

Restoration of Pulmonary Compliance after Laparoscopic Gynecologic Surgery Using a Recruitment Maneuver.

This study aimed to investigate the hypothesis that an alveolar recruitment maneuver can restore lung compliance to initial values after laparoscopic gynecological surgery. A total of 31 patients who underwent laparoscopic gynecological surgery were enrolled. Protective mechanical ventilation was applied, and the radial artery was catheterized in all patients. An alveolar recruitment maneuver (incremental and decremental positive end-expiratory pressure) was applied ten minutes after the release of pneumoperitoneum. The respiratory mechanics and blood gas results were recorded at eight different time points: after induction of anesthesia (T1), in the lithotomy position (T2), in the Trendelenburg position (T3), 10 and 90 min after insufflation of carbon dioxide (T4 and T5), in the supine position (T6), after desufflation (T7), and 10 min after an alveolar recruitment maneuver at the end of surgery (T8). Pneumoperitoneum and the Trendelenburg position caused a decline of 15 units in compliance (T7 vs. T1; p < 0.05) compared to baseline. After the alveolar recruitment maneuver, compliance increased by 17.5% compared with the mean value of compliance at time T1 (T8 vs. T1; p < 0.05). The recruitment maneuver had favorable results in patients with low initial compliance (41.5 mL/cmH2O, IQR: 9.75 mL/cmH2O), high Body Mass Index 30.32 kg/m2 (IQR: 1.05 kg/m2), and high initial plateau airway pressure (16.5 cmH2O, IQR: 0.75 cmH2O). Lung compliance does not return to initial values after performing laparoscopic gynecological procedures. However, after the release of pneumoperitoneum, an alveolar recruitment maneuver is beneficial as it improves compliance and gas exchange.

The effects of different positions on lower extremity hemodynamics during robot-assisted laparoscopic radical prostatectomy for prostate cancer

PurposeThis study aimed to investigate the effects of two different positions on lower extremity hemodynamics during robot-assisted laparoscopic radical prostatectomy (RARP) for prostate cancer.MethodsA total of 196 patients who underwent RARP in our hospital from February 2020 to March 2022 were included in this study. Among them, 98 patients who underwent surgery with the Trendelenburg position and split-leg position with calf reverse arch from March 2021 to March 2022 were assigned to the observation group, while 98 patients who underwent surgery with the Trendelenburg position and low lithotomy position from February 2020 to February 2021 were assigned to the control group. Using an ultrasound diagnostic instrument to detect the internal diameter, mean blood flow velocity, and mean blood flow volume of the left deep femoral vein at different times, such as the supine position (T0), after 5 minutes of placing the patient in the leg spilt or low lithotomy position (T1), after 5 minutes of pneumoperitoneum (T2), after 5 minutes of head-down tilt or head-down tilt and calf reverse arch (T3), 1.5 hours after the start of surgery (T4), before the removal of CO2 gas (T5), and before the patient left the operating room (T6). As well as the patency of deep venous blood flow in both lower extremities before leaving the operating room,ResultsAfter establishment of pneumoperitoneum, the internal diameter of the deep femoral vein increased significantly, while the mean blood flow velocity and mean blood flow volume decreased significantly in both groups(T0) (P<0.001). With the prolongation of surgical time, the impact on lower extremity hemodynamics in the observation group was smaller than that in the control group. From T2 to T6, the internal diameter of the femoral vein in the observation group was smaller than that in the control group, while the mean blood flow velocity and mean blood flow volume were increased compared to the control group (P<0.05). Before leaving the operating room, the patency of deep venous blood flow in the observation group was better than that in the control group (P=0.003).ConclusionPlacing patients in the Trendelenburg position and split-leg position with calf reverse arch during RARP for prostate cancer has a smaller impact on lower extremity hemodynamics than the low lithotomy position, and can relatively reduce the risk of postoperative deep vein thrombosis.

Preliminary comparative study of lower extremity pressure measurements under the conditions using former models and new lithotomy stirrups in rectal cancer surgery

BackgroundThis study aimed to investigate the effect of the use of new lithotomy stirrups-2 on the pressure dispersal on lower limbs, which may lead to the prevention of well-leg compartment syndrome (WLCS) and deep venous thrombosis (DVT), which are the most commonly associated adverse events with laparoscopic and robot-assisted rectal surgery.MethodsA total of 30 healthy participants were included in this study. The pressure (mmHg) applied on various lower limb muscles when using conventional lithotomy stirrups-1 and new type stirrups-2 was recorded in various lithotomy positions; 1) neutral position, 2) Trendelenburg position (15°) with a 0° right inferior tilt, and 3) Trendelenburg position (15°) with a 10° right inferior tilt. Using a special sensor pad named Palm Q®, and the average values were compared between two types of stirrups.ResultsThe use of new lithotomy stirrups-2 significantly reduced the pressure applied on the lower limb muscles in various lithotomy positions compared with the use of lithotomy stirrups-1. The most pressured lower limb muscle when using both lithotomy stirrups was the central soleus muscle, which is the most common site for the development of WLCS and DVT. In addition, when using the conventional lithotomy stirrups-1, the pressure was predominantly applied to the proximal soleus muscle; however, when using lithotomy stirrups-2, the pressure was shifted to the more distal soleus muscle.ConclusionThese results suggest that the new lithotomy stirrups-2 is useful in reducing the pressure load on leg muscles, especially on the proximal to central soleus, and may reduce the incidence of WLCS and DVT after rectal surgery performed in the lithotomy position. Further clinical studies are needed to determine whether the use of lithotomy stirrups-2 prevents these complications in various clinical settings.

Comparison of Prone With Lithotomy Position in Removal of Posterior Myoma in Transvaginal Natural Orifice Endoscopic Surgery: A Prospective Cohort Study

ObjectiveVaginal natural orifice transluminal endoscopic surgery (vNOTES) is considered to have the advantages of completely scarless, less postoperative pain, earlier flatus, and faster postoperative recovery. However, posterior myoma are relatively difficult to operate through vNOTES in the conventional lithotomy position. Thus, we innovated the application of prone position in the removal of posterior myoma in vNOTES. The aim of this study is the comparison of myomectomy outcomes of patient for single posterior myoma in prone and lithotomy position. DesignA single-center, prospective study. SettingA university teaching hospital. PatientsA total of 81 patients with posterior myoma who underwent myomectomy in vNOTES from January 2021 to December 2022. InterventionsThe patients underwent myomectomy in vNOTES in prone or lithotomy position. Measurements and Main ResultsAmong the patients who underwent vNOTES myomectomy, 29 (35.8%) were in the lithotomy position group, and 52 (64.2%) in the prone position group. Of note, 4 (4.9%) patients underwent a conversion to LESS during the operation—3 in the lithotomy and 1 in the prone position group. And a patient in the lithotomy position group underwent resurgery for hemostasis due to postoperative pelvic bleeding. Compared with the lithotomy position, prone position significantly shortens the operation time (12.3, 95% CI: 6.811, 17.761. p = .009) without increasing the complications and postoperative discomfort of patients. ConclusionCompared to the lithotomy position, the prone position provides greater convenience for operation and exhibits a lower rate of surgical conversion during the removal of single posterior myomas via vNOTES. Further, for patients selecting vNOTES, surgeons need to conduct sufficient preoperative evaluation, timely hemostasis during surgery, and timely surgical conversion if necessary to ensure patient safety.

Evaluation of the Postoperative Risk of Deep Tissue Injury to the Lower Extremities Following Surgery in the Lithotomy Position.

Background The aim of this study was to determine the incidence of deep tissue injury (DTI) and potential risk factors after surgery in the lithotomy position. Methods All patients who underwent surgery in the lithotomy position under general anesthesia at a single center between January 2017 and December 2021 were retrospectively evaluated. The medical records of these patients were reviewed, and patient demographic and clinical characteristics, surgical data, and occurrence of DTI were recorded. Results During the study period, 5146 patients, 2055 (39.9%) males and 3091 (60.1%) females, witha mean age of 57.3 ± 17.4 years, underwent surgery in the lithotomy position. Seven (0.14%) patients developed DTI on their calf following surgery. All presented with severe pain and swelling, requiring prolonged hospital stay. Multivariate analysis showed that male sex (odds ratio (OR): 11.43; 95% confidence interval (CI): 1.15-113.34, p = 0.037), higher BMI (OR: 1.32; 95% CI: 1.17-1.50, p = 0.0001), and longer operation time (OR: 1.01;95% CI: 1.004-1.014, p = 0.0002) were independent risk factors for postoperative DTI. Optimal cut-off values for BMI and operation time were 23.5 kg/m2 (sensitivity = 100%; specificity = 64%) and 285 minutes (sensitivity = 100%; specificity = 90%), respectively. Conclusion Factors significantly associated with DTI include male sex, higher BMI, and prolonged operation time.

A Simple Maneuver to Facilitate Delivery in Shoulder Dystocia

Shoulder dystocia is an unpredictable complication of vaginal delivery and it could lead serious adverse maternal and neonatal outcomes. Prompt intervention and appropriate management of this obstetric emergency is essential to reduce the risk of adverse outcome. The maneuvers that had various advantages and disadvantages to alleviate shoulder dystocia have been described previously. In this report, we defined a new, easy to perform and noninvasive maneuver which could be used to relieve shoulder dystocia. This maneuver was successfully implemented in two nulliparous and two multiparous women who had experienced shoulder dystocia during vaginal delivery. After the diagnosis of shoulder dystocia and unsuccessful McRoberts and suprapubic pressure maneuver, the gentle upward traction on the fetal head and neck was performed in the lithotomy position. The posterior shoulder slipped forward in the sacral hollow and brought closer to the introitus with this maneuver. Thus, the anterior and posterior shoulders were no longer in the same antero-posterior plane of the pelvis. Then the gentle downward traction on the fetal head was applied until the anterior shoulder protruded through the perineum and the impacted anterior shoulder dislodged from behind the symphysis pubis. No other maneuver was needed for the completion of the delivery in these four cases, and no maternal or neonatal complication was observed. In conclusion, the presented maneuver is an easy and noninvasive maneuver. It could be easily learned with simulation training and used in the management of shoulder dystocia.

Application value of extreme flexion and abduction hip combined with stirrup-shaped multifunctional leg frame in blocking obturator nerve reflex in transurethral resection of bladder tumor.

To explore the effectiveness and safety of the extreme flexion and abduction hip combined with a stirrup-shaped multifunctional leg frame position in preventing obturator nerve reflex during plasma resection of bladder tumors (TUR-BT). A total of 112 patients with bladder tumors were included in the study. The control group was placed in a lithotomy position, while the experimental group was placed in an extreme flexion and abduction hip combined with a stirrup-shaped multifunctional leg frame position. The grade of leg jerking, operation time, and some operative complications were compared between groups. The operation time, bleeding volume, the grade of leg jerking, second TUR-BT, and acquisition of detrusor muscle were significantly better in the experimental group compared to the control group (P = 0.018, P = 0.013, P < 0.001, P = 0.041, and P < 0.001, respectively). The grade of leg jerking in the experimental group was extremely low (distributed in grade 1 and 2), and there were no severe reactions in grade 3 and 4. The extreme flexion and abduction hip combined with a stirrup-shaped multifunctional leg frame position for TUR-BT is a safe and effective treatment method that can effectively prevent obturator nerve reflex, reduce complications, improve surgical efficacy, and reduce anesthesia dependence and risk.

Comparison of digital and speculum-guided methods of transcervical Foley catheter insertion in primigravida undergoing cervical ripening at term gestation: a noninferiority randomized clinical trial

BackgroundFoley catheter insertion is frequently utilized for cervical ripening during the induction of labour. However, the insertion failure, safety, maternal side effects, complications and satisfaction of digital compared to speculum-guided Foley catheter placement have not been evaluated in a large trial involving primigravida. ObjectivesThe study aimed to compare the insertion failure rate of digital and speculum-based transcervical Foley catheter placement in primigravida. The co-primary outcome was insertion-associated pain. The secondary outcomes were time required for successful insertion, maternal satisfaction, and maternal complications within 24 hours of Foley insertion. MethodsThis randomized, open-label, parallel-arm, non-inferiority clinical trial was performed in a large tertiary care university hospital. Primigravida >18 years of age with term gestation (≥37 weeks) were included in this study. Additional inclusion criteria for enrolment in this study were singleton pregnancy with a cephalic presentation, intact membrane, Bishop score ≤5 and reassuring pre-induction foetal heart rate tracing. All women planned for cervical ripening were assessed for eligibility and were randomized into digital or speculum arms. Foley catheter insertion was performed in a supine lithotomy position. Vaginal and cervical cleaning were performed before insertion. A 22-French Foley balloon catheter was guided digitally or via speculum to position the bulb at the level of the internal os using water-soluble lubricant. Insertion-associated pain was measured using visual numeric rating scale (VNRS) and maternal satisfaction was assessed using a set of questions. Results469 pregnant women were assessed for eligibility, and 446 patients were enrolled and randomized. The median age of the parturients was 24 (19-40) and 24 (18-38) years, respectively. The body mass index, gestational age at randomization, incidence of post-dated pregnancy and pre-randomization Bishop scores were comparable. Insertion failure was observed in 24 (10.8%) and 17 (7.6%) of women in digital and speculum arm, respectively (RR= 1.41; 95% CI, 0.78-2.55; P=0.25). Requirements of more than one attempt (5.4% vs 3.6%) followed by change in hands (3.6% vs 2.7%) were the most common reasons for insertion failure. The median (interquartile range) VNRS was comparable (6.00 (2-9) vs 5.00 (2-10); p=0.15). The time taken for successful insertion was similar (58 (12-241) vs 54 (10-281); p=0.30). 9.4% and 10.8% of women required additional methods of cervical ripening. More women in the speculum group (41.7% vs 33.2%; P=0.06) felt a medium level of discomfort than digital group. ConclusionInsertion failure and insertion-related pain in the digital approach were comparable to the speculum-guided approach for transcervical Foley catheter insertion in primigravida for cervical ripening. Nevertheless, maternal satisfaction was higher in the digital group due to a lesser level of discomfort.

(272) Evidence-Based Strategies for Preventing Lower-Limb Complications Secondary to Prolonged use of the Dorsal Lithotomy Position

Abstract Introduction Patient positioning at the time of surgery plays a critical role in determining patient outcomes. Specific to patients undergoing genital gender-affirming surgery (gGAS), these patients are required to be placed in the lithotomy position to access the pelvis and perineum for their procedures. Lower-extremity injury due to prolonged surgical time in the lithotomy position can have significant post-operative morbidity affecting patient outcomes. This risk is increased in patients undergoing gGAS procedures due to high surgical complexity and especially long operative times as compared to other surgical procedures. Careful attention must be placed on the patient’s specific position perioperatively due to potential injury risk. Prolonged stasis can cause injuries ranging from mild soft-tissue injuries which rapidly resolve, such as mild pressure injuries to bony prominences, to severe injuries including pressure ulcers, nerve injuries, rhabdomyolysis, and compartment syndrome. These complications can have lasting impact on the patient, with associated morbidity and mortality risk, and can also impact healthcare systems through additional dollars spent caring for patients who suffer these complications and their associated rehabilitation, and legal recourse on behalf of the patient who suffered these severe complications. Objective Our study aimed to describe our technique for preventing lower extremity injuries in the dorsal lithotomy position, and to evaluate our positioning-related post-operative complications and rates. Methods We describe our technique for lower-limb positioning in the dorsal lithotomy position, with an emphasis on injury prevention for patients undergoing gGAS. We assessed positioning-related outcomes and complications among patients undergoing gGAS for prolonged periods (&amp;gt;300 minutes) in the lithotomy position between January 2017 to March 2023. Results A total of 227 patients underwent 310 gGAS procedures were included in our study (156 masculinizing: 154 feminizing gGAS procedures). Mean operative time was 495.5 minutes +/- 156.5 minutes (SD) (Range 300–1095 minutes) (Table 1a). A total of 6/227 (2.6%) patients (2 masculinizing and 4 feminizing surgical patients) had transient, self-limited LE pain post-operatively. No (0%) patients had major or chronic complications including chronic nerve injury, pressure ulcers, rhabdomyolysis or compartment syndrome (Table 1b). Our patient positioning employs the use of ½ inch foam placed to surround the lower extremity, ensuring that all at-risk areas of compression are adequately protected when placing the patient’s leg in the Allen stirrups whilst in the lithotomy position (Figure 1). In addition, a perioperative list is also utilized with regular leg checks every 1.5–2 hours with nursing documentation and also, ensuring patients are able to move their lower extremities without any pain post-operatively (Figure 2). Conclusions Our study is the first to describe a specific technique and outline strategies for protecting the lower extremities to prevent injuries in patients undergoing prolonged surgical procedures in the lithotomy position. The low complication rates associated with our technique warrants attention to further refine this technique, and, to integrate these strategies into operating-room programs across diverse specialties. Disclosure No.

(067) The Outcome of Bulbospongiosus Muscle Injection with Botulinum-A Toxin for Treatment of Lifelong Premature Ejaculation; A Randomized Controlled Trial

Abstract Introduction Lifelong premature ejaculation (PE) is considered one of the commonest sexual disorder affecting men with an estimated prevalence of 2–5%. [1,2] Many definitions have been proposed for lifelong PE, the most accepted is the ISSM’s which consider PE “ejaculation which always or nearly always occurs prior to or within about 1 minute of vaginal penetration from first sexual experiences (lifelong premature ejaculation) + Negative personal consequences such as distress, bother, frustration, and/or the avoidance of sexual intimacy”.[3] However, there is no doubt that lifelong PE negatively affects the quality of life of the patient and his partner. [2] Proper assessment of this problem in an objective validated way has always been a challenge. [4] Treatment also varied from behavioral techniques, SSRIs and local anaesthetics with very variable outcome, unsatisfactory for many patients. [5] New lines have been always evolving trying to address this resistant category of patients such as injection of the glans penis with filler [6] or neurectomy of the dorsal nerve of the penis. [7] Herein; we assess a new line of treatment for lifelong PE which theoretically can inhibit the stereotyped rhythmic contractions of the bulbospongiosus muscle during the reflex of ejaculation using botulinum-A toxin; in a prospective, randomized, placebo-controlled study. Objective This study aimed to assess a new line of treatment for lifelong premature ejaculation (PE) which is botulinum-A toxin injection into the bulbospongiosus muscle. Methods It was conducted at the Andrology Unit of Tanta University in Egypt between November 2020 and November 2022. Patients with lifelong PE were considered for this study. Those suffering from PE secondary to erectile dysfunction, genital infection or psychic stress were excluded. Patients have been asked to stop any medical treatment that could affect their sexual function eg PDE5i and medications for lifelong PE; for at least 1 month before injection as well as 6 months thereafter. Sixty patients with lifelong PE have been prospectively enrolled and randomized into 2 groups; the test group (group A) was injected with 100 U botulinum-A toxin at 10 U/ml and the control group (group B) which was injected with the same volume of saline into the bulbospongiosus muscle. Injection was done in lithotomy position, using a fanning technique, under US guidance using the superficial probe to localize the site of injection. Fifty-seven patients of 60 completed the follow up protocol. Results Fifty-seven patients of 60 completed the follow up protocol. The IELT, PEP score and female satisfaction showed no statistically significant difference between both groups at the 1, 3 and 6 months post intervention. However, in the treatment group, the median (IQR) PEP score increased significantly after 1 and 3 months with a mean difference of 1.6 and 95 % CI of (0.7–2.5), P=0.001 and 0.9 and 95% CI of (1.07–1.69), P=0.02 respectively. Whereas insignificant change was noted at 6 months, with a mean difference of 0.13.In the control group however, there was no significant change of any of the tested parameters at any the 3 time points. Adverse reactions were minor and observed only in 3 cases (5%). Conclusions botulinum A injection into the BS muscle seems to be safe, but failed to prove efficacy when compared to placebo in treatment of lifelong PE Disclosure No.

Pilonidal Sinus of the Anal Canal: A Rare Entity - Case Report

AbstractPilonidal sinus is the term first used by Hodges in 1880 to describe a granulomatous lesion containing hairs. It has been previously described as hair extracted from an ulcer and referred to as Jeep's disease, in world war days. Pilonidal sinus is the condition in which a sinus or fistula is situated at a short distance from the anus and generally contains hairs. It is commonly observed in the sacrococcygeal region and a few other sites, such as the axilla, umbilicus, face, etc. Its presence elsewhere is uncommon. Predisposing factors are traumatized, hairy skin, which leads entry of the hair inside the wound, thus forming a sinus. A 31-year-old patient presented with discharging endoanal sinus tract, which, on exploration, turned out to be an endoanal pilonidal sinus containing hair tufts, a rare case. The patient complained of recurrent pus discharge and anal pain for 45 days, reporting history of travelling around 70 km daily in a two-wheeler vehicle.On first physical evaluation, a small endoanal bulge was found. It was located at 1 o'clock in lithotomy position (anterior), with purulent discharge and anterior anal fissure. For confirmation, an endoanal ultrasonography (USG) was performed, which showed a sinus tract containing internal echoes and gas bubbles with a small amount of pus. The sinus was explored, and a wide excision was made and left open for secondary healing.Pilonidal sinus of the anal canal is a rare entity, and it can be found in hairy patients who are used to going on long, daily rides on two wheeled vehicles.

Reducing the Time Before the Console in Robotic-Assisted Laparoscopic Hysterectomy

Robotic-assisted surgery enables precise manipulations with magnified vision, stereoscopic vision, and forceps with multi-joint functions. It requires unique procedures such as position setting, port placement, roll-in, and docking, which lead to prolonged operation and anesthesia time. Five conditions described below were established at our institution to reduce the time to the initiation of console: (1) changing the patients' position from the flat lithotomy position to the spread legs position; (2) attaching a Hasson cone to hold the umbilical cannula stable; (3) changing the cannula's obturator (inner tube) from blunt to bladeless; (4) fixing the team, and (5) conducting regular docking training. These outcomes were examined in this study. The study included 77 patients who underwent robotic-assisted total hysterectomy for benign uterine disease and stage IA uterine cancer at our individual institution between April 2019 and July 2022. We compared the median time from anesthesia to console initiation between the first half group (cases 1-40) and the second half group (cases 41-77). The former required 91.5 (53-131) minutes, whereas the latter required 59 (37-126) minutes. Appropriate equipment selection and team education can reduce the time to console initiation.

A70 INABILITY TO AMBULATE FOLLOWING COLONOSCOPY: AN UNEXPECTED COMPLICATION

Abstract Background The peroneal nerve innervates the lower extremities. Compression injury has been documented in the adult patients following the lithotomy position perioperatively, but has rarely been described in pediatric patients following colonoscopy. Aims To report a rare complication following colonoscopy and discuss possible aetiologies. Methods A chart review of a post-colonoscopy peroneal nerve injury in a pediatric patient was conducted along with a literature review. Results A 12 year old boy with ulcerative colitis underwent a colonoscopy for flare symptoms. He was in the left lateral decubitus position for 60 minutes. Immediately after the procedure, he experienced loss of sensation from the left knee to the plantar aspect of the foot, and left foot drop. He had no symptoms of weakness or paresthesia in the right lower extremity or the upper extremities. Prior to the procedure, he reported normal strength, function, and sensation of all extremities. He had no history of injury, joint inflammation or previous surgery affecting his left leg. He had no recent history of steroid use or systemic illness. Two months post procedure he had some symptom improvement and could independently ambulate. He had normal range of motion, strength, and sensation in the upper extremities and right lower extremity. His left leg had 4/5 strength on dorsiflexion and decreased pinprick and light touch sensation. He had difficulty with heel-toe walking. Reflexes were normal. Left leg X-ray and spine MRI were normal. Electrodiagnostic evaluation supported a left common peroneal nerve injury, predominantly demyelinating in nature with minimal axonal contribution, likely secondary to compression around the fibular head during the time of the colonoscopy. He showed full recovery and returned to baseline by 7 months. Conclusions Peroneal nerve injury post colonoscopy is very rare. A study focusing on pediatric colonoscopy found that 3 of 746 patients experienced postoperative neuropathies in their lower extremities. Procedure times were between 70-120 minutes. Presentations and recovery periods were variable, lasting several days to 3 months. The mechanisms of this injury are unclear and felt unlikely to be secondary to positioning alone. It is speculated that BMI, procedure length, frog leg position and position changes, as well as systemic inflammation may be contributory. Factors such as hypothermia, dehydration, hypotension, hypoxia, and electrolyte disturbances may further place patients at risk. Awareness of this rare event and potential modifiable risk factors is important. Funding Agencies None

Outcome of vesicovaginal fistula repair by vaginal approach.

Objectives: To evaluate success of vesicovaginal fistula repair by vaginal approach with secondary objective to assess the limitations of repair by vaginal route. Study Design: Retrospective &amp; Descriptive study. Setting: Department of Urology and Renal Transplantation, Faisalabad Medical University, Faisalabad. Period: January 2017 to December 2020. Material &amp; Methods: In which 42 patients were included in the study. All patients were submitted for VVF repair by vaginal approach. Procedure was done under spinal anesthesia in all patients. Operation was done in lithotomy position. Circumferential incision was made around the fistula. Vagina and bladder were separated. Urinary bladder was repaired in two layers and vagina by perpendicular stitching technique. Foley catheter was passed. Urinary leakage was seen by instillation of normal saline and Gentian Violet. Vaginal packing was done at the end of the procedure which was removed after 1 day of surgery and patient post operative data was noted. Results: 42 patients were included. There mean age was 27 years. 45.23% patients came with history of prolonged labor, 30.95% patients presented after transabdominal hysterectomy, 21.42% after lower segment secession section and 2.38% patients came after operation for cystocele. Infra-trigonal VVF was present in 59.53% patients and supra-trigonal in 40.47% cases. Our success rate was 85.71% and we faced failure in 14.28% of patients. Lower urinary tracts symptoms were seen in 30.95%, hematuria in 9.25%, stress incontinence in 11.9%, symptoms like over active bladder in 7.14% and urinary tract infection in 14.28%. Conclusion: VVF repair by vaginal approach is safe and successful with less morbidity than abdominal approach.