Choosing ankle tourniquets in foot and ankle surgery: Beyond postoperative pain considerations.

This editorial critically explores the use of ankle vs thigh tourniquets in foot and ankle surgery based on a recent study that found no significant difference in postoperative pain between the two placement techniques. Despite these findings, we argue for the preferential use of ankle tourniquets, highlighting their potential benefits in reducing venous blood stasis and minimizing soft tissue injury. This approach underscores the importance of considering long-term patient outcomes and vascular health beyond immediate postoperative pain. By integrating study findings with broader clinical considerations, we hereby advocate for a nuanced approach to tourniquet use that prioritizes patient safety and long-term recovery in conjunction with immediate postoperative pain.

Contrast-Enhanced Intraoperative Ultrasound Shows Excellent Performance in Improving Intraoperative Decision-Making.

BACKGROUND: The aim of this study was to evaluate the performance and the impact of contrast-enhanced intraoperative ultrasound (CE-IOUS) on intraoperative decision-making, as there is still no standardized protocol for its use. Therefore, we retrospectively analyzed multiple CE-IOUS performed in hepato-pancreatic-biliary surgery with respect to pre- and postoperative imaging and histopathological findings. METHODS: Data of 50 patients who underwent hepato-pancreatic-biliary surgery between 03/2022 and 03/2024 were retrospectively collected. CE-IOUS was performed with a linear 6-9 MHz multifrequency probe connected to a high-resolution device. The ultrasound contrast agent used was a stabilized aqueous suspension of sulphur hexafluoride microbubbles. RESULTS: In total, all 50 lesions indicated for surgery were correctly identified. In 30 cases, CE-IOUS was used to localize the primary lesion and to define the resection margins. In the remaining 20 cases, CE-IOUS identified an additional lesion. Fifteen of these findings were identified as malignant. In eight of these cases, the additional malignant lesion was subsequently resected. In the remaining seven cases, CE-IOUS again revealed an inoperable situation. In summary, CE-IOUS diagnostics resulted in a high correct classification rate of 95.7%, with positive and negative predictive values of 95.2% and 100.0%, respectively. CONCLUSIONS: CE-IOUS shows excellent performance in describing intraoperative findings in hepato-pancreatic-biliary surgery, leading to a substantial impact on intraoperative decision-making.

Improving intraoperative diagnosis of spread through air spaces: A cryo-embedding-medium inflation method for frozen section analysis.

Objective: Accurate intraoperative diagnosis of spread through air spaces (STAS), a known poor prognostic factor in lung cancer, is crucial for guiding surgical decision-making during sublobar resections. This study aimed to evaluate the diagnostic sensitivity of STAS using frozen section (FS) slides prepared with the cryo-embedding medium inflation technique. Methods: In this prospective study at Shinshu University Hospital, 99 patients undergoing lung resection for tumors <3 cm in size were included, a total of 114 lesions. FS slides were prepared with injecting diluted cryo-embedding medium into the lung parenchyma of resected specimens. The diagnostic performance of these FS slides for STAS detection was evaluated by comparing FS-STAS results with the gold-standard STAS status. Results: The incidence of STAS, determined by the gold standard, was 43 (38%) of 114 lesions, including 31 (37%) of 84 primary lung cancers and 12 (40%) of 30 metastatic lung tumors. The sensitivity, specificity, positive and negative predictive values, and accuracy of FS slides for STAS detection were 81%, 89%, 81%, 89%, and 86%, respectively. Specifically, in primary lung cancers, these values were 90%, 89%, 82%, 94%, and 89%, respectively. Regarding metastatic lung tumors, the corresponding values were 58%, 89%, 78%, 76%, and 77%, respectively. Conclusions: Our adapted cryo-embedding medium inflation method has demonstrated enhanced sensitivity in detecting STAS on FS slides, providing results similar to the gold-standard STAS detection. Compared with historical benchmarks, this technique could show excellent performance and be readily incorporated into clinical practice without requiring additional resources beyond those used for standard FS analysis.

Hartmann's procedure in rectal cancer surgery is often an intraoperative decision: a retrospective multicenter study.

PURPOSE: This study aimed to investigate patient-related factors predicting the selection of rectal cancer patients to Hartmann's procedure as well as to investigate how often, and on what grounds, anterior resection is intraoperatively changed to Hartmann's procedure. METHODS: Prospectively collected data from the Swedish Colorectal Cancer Registry regarding patients with rectal cancer operated upon from January 1 2007 to June 30 2017 in the county of Skåne were retrospectively reviewed. Data were expanded with further details from medical charts. A univariable analysis was performed to investigate variables associated with unplanned HP and significant variables included in a multivariable logistic regression analysis. RESULTS: Altogether, 1141 patients who underwent Hartmann's procedure (275 patients, 24%), anterior resection (491 patients, 43%), or abdominoperineal resection (375 patients, 33%) were included. Patients undergoing Hartmann's procedure were significantly older and had more frequently comorbidity. The decision to perform Hartmann's procedure was made preoperatively in 209 (76%) patients, most commonly because of a comorbidity (27%) or oncological reasons (25%). Patient preference was noted in 8% of cases. In 64 cases (23%), the decision was made intraoperatively, most often due to anastomotic difficulties (60%) and oncological reasons (22%). Anastomotic difficulties were most often reported due to technical difficulties, a low tumor or neoadjuvant radiotherapy. Male gender was a significant risk factor for undergoing unplanned Hartmann's procedure. CONCLUSIONS: The decision to perform Hartmann's procedure was frequently made intraoperatively. Hartmann's procedure should be considered and discussed preoperatively in old and frail patients, especially in the presence of mid-rectal cancer and/or male gender, since these factors increase the risk of intraoperative anastomotic difficulties.

Use of artificial intelligence for decision-support to avoid high-risk behaviors during laparoscopic cholecystectomy.

INTRODUCTION: Bile duct injuries (BDIs) are a significant source of morbidity among patients undergoing laparoscopic cholecystectomy (LC). GoNoGoNet is an artificial intelligence (AI) algorithm that has been developed and validated to identify safe ("Go") and dangerous ("No-Go") zones of dissection during LC, with the potential to prevent BDIs through real-time intraoperative decision-support. This study evaluates GoNoGoNet's ability to predict Go/No-Go zones during LCs with BDIs. METHODS AND PROCEDURES: Eleven LC videos with BDI (BDI group) were annotated by GoNoGoNet. All tool-tissue interactions, including the one that caused the BDI, were characterized in relation to the algorithm's predicted location of Go/No-Go zones. These were compared to another 11 LC videos with cholecystitis (control group) deemed to represent "safe cholecystectomy" by experts. The probability threshold of GoNoGoNet annotations were then modulated to determine its relationship to Go/No-Go predictions. Data is shown as % difference [99% confidence interval]. RESULTS: Compared to control, the BDI group showed significantly greater proportion of sharp dissection (+ 23.5% [20.0-27.0]), blunt dissection (+ 32.1% [27.2-37.0]), and total interactions (+ 33.6% [31.0-36.2]) outside of the Go zone. Among injury-causing interactions, 4 (36%) were in the No-Go zone, 2 (18%) were in the Go zone, and 5 (45%) were outside both zones, after maximizing the probability threshold of the Go algorithm. CONCLUSION: AI has potential to detect unsafe dissection and prevent BDIs through real-time intraoperative decision-support. More work is needed to determine how to optimize integration of this technology into the operating room workflow and adoption by end-users.

Robotic arm-assisted total hip arthroplasty for preoperative planning and intraoperative decision-making.

AIMS: This article aimed to explore the efficacy of robotic arm-assisted total hip arthroplasty (THA) in improving preoperative planning and intraoperative decision-making. METHODS: In this single-center, prospective, randomized clinical controlled trial, 60 patients were randomly divided into two groups: conventional THA (cTHA) and robotic arm-assisted THA (rTHA). The rTHA underwent procedures using a robot-assisted surgical system, which generated three-dimensional models to determine the most appropriate prosthesis size and position. The standard process of replacement was executed in cTHA planned preoperatively via X-ray by experienced surgeons. Differences between predicted and actual prosthetic size, prosthetic position, and leg length were evaluated. RESULTS: Sixty patients were included in the study, but one patient was not allocated due to anemia. No significant preoperative baseline data difference was found between the two groups. The actual versus predicted implantation size of both groups revealed that 27/30 (90.0%) in the rTHA group and 25/29 (86.2%) in the cTHA group experienced complete coincidence. The coincidence rate for the femoral stem was higher in the rTHA group (83.3%) than that in the cTHA group (62.7%). Between the actual and predicted rTHA, the difference in anteversion/inclination degree (< 6°) was largely dispersed, while cTHA was more evenly distributed in degree (< 9°). The differences in leg length between the surgical side and contralateral side showed a significant deviation when comparing the two groups (P = 0.003), with 0.281 (- 4.17 to 3.32) mm in rTHA and 3.79 (1.45-6.42) mm in cTHA. CONCLUSION: Robotic arm-assisted total hip arthroplasty can be valuable for preoperative planning and intraoperative decision-making.

How does office assessment of prolapse compare to what is seen in the operating room?

INTRODUCTION AND HYPOTHESIS: It is not known whether the measurements of pelvic organ assessment under anesthesia accurately estimate prolapse severity. We compared Pelvic Organ Prolapse Quantification (POP-Q) measurements in the office to exams under anesthesia. METHODS: We prospectively enrolled patients undergoing prolapse surgery between February 2020 and July 2020. POP-Qs at rest and with Valsalva were performed at pre- and postoperative visits. POP-Q under anesthesia was performed, without traction, at the start of case (pre-surgical), following apical suspension, and at the end of case (post-surgical). Primary outcome was change in POP-Q between the office and operating room. Due to the COVID-19 pandemic, additional patients were recruited to maintain the follow-up time frame. RESULTS: Out of 66 patients, 63 underwent surgery and 33 had postoperative exams within 6 weeks. Mean age was 61.3 ± 11.9 years, and mean BMI was 28.4 ± 6.5 kg/m2. Preoperative Aa, Ba, C, Ap, Bp, and D with Valsalva had greater descent than pre-surgical measurements. However, preoperative Gh with Valsalva (4.1 ± 1.3 cm) was not different from pre-surgical Gh (4.0 ± 1.0 cm) (P = 0.60). Postoperative Aa, Ba, Ap, Bp, and D were not different from post-surgical measurements. In contrast, postoperative Gh at rest (2.3 ± 0.7 cm) and with Valsalva (2.4 ± 0.8 cm) were both narrower than post-surgical Gh (2.8 ± 0.6 cm) (P < 0.05). Gh was also narrowed after apical suspension (3.6 ± 1.0 cm, P = 0.005) prior to posterior repair. CONCLUSIONS: Surgeons should rely on preoperative POP-Q for surgical decisions. Gh should be reassessed after apical suspension, and further correction should consider that Gh may be exaggerated compared to the measurement postoperatively when the patient is awake.

Case selection and implementation of tubeless percutaneous nephrolithotomy.

BACKGROUND: The tubeless percutaneous nephrolithotomy (PCNL) was proposed to eliminate the side effects of the nephrostomy tube in recent years, such as pain, channel infection, postoperative bleeding, and longer hospital stay. But there is neither clinical guidelines nor consensus about tubeless PCNL in clinical practice. The study is aimed to how to implement the tubeless PCNL step by step, including case selection preoperatively, improving the technique of the surgeon, making the correct decisions at the end of the procedure, which had not been previously examined. METHODS: From January 2017 to March 2018, 364 consecutive patients requiring PCNL were comprehensively analyzed preoperatively and patients were selected for scheduled tubeless PCNL based on four aspects. The selected patients were divided into two groups according to whether the nephrostomy tube was finally placed. The mean operative time, intraoperative blood loss, stone clearance rate, visual pain score, postoperative hospitalization days and perioperative complications were all evaluated. RESULTS: Based on the preoperative evaluation, 42 patients were selected for tubeless PCNL, among which there were finally 37 cases of completed tubeless PCNL. Compared with patients undergoing conventional PCNL, there were not statistical differences in the mean operative time (P=0.207) or intraoperative blood loss (P=0.450) in the tubeless group. Stone clearance rate was 100% in both groups. The visual pain scores in the tubeless PCNL group were lower on operation day (P=0.029), first postoperative day (P<0.001) and the day of discharge (P=0.025). The postoperative hospitalization for the tubeless PCNL group was shorter than that of the control group (P<0.001). No significant difference in grade 1 complications was seen (P=0.424), and no grade 2 or higher complications were observed in either group. CONCLUSIONS: Postoperative pain was significantly relieved and postoperative hospitalization was significantly shortened in the tubeless PCNL group. Tubeless PCNL is safe if patients are carefully selected using four criteria before operation, attention is paid to four key points and five confirmations are made during operation.

Pediatric neurosurgeons' philosophical approaches to making intraoperative decisions when encountering an uncertainty or a complication while operating on children.

OBJECTIVE: The objective of this study was to explore approaches to intraoperative decision-making in pediatric neurosurgeons when they encounter unexpected events, uncertainties, or complications while operating on children. METHODS: Twenty-six pediatric neurosurgeons from 12 countries around the world were interviewed using a semistructured interview guide. The grounded theory method of data collection and analysis was used. Analysis involved line-by-line coding and was inductive, with codes and categories emerging from participants' narratives. RESULTS: When asked to discuss the strategies they used to make intraoperative decisions, neurosurgeons reported three distinct approaches that formed a philosophy of practice. This included the theme of professional practice-with the subthemes of preparing for uncertainty, doing no harm, being creative and adaptive, being systematic, and working on teams. The second theme pertained to patient and caregiver practices-with the subthemes of shared decision-making and seeing the whole patient. The third theme involved surgeon practice-with the subthemes of cultivating self-awareness and learning from experience. CONCLUSIONS: Pediatric neurosurgeons have a structured, diverse, and well-thought-out analytical philosophy and practice regarding intraoperative decision-making that encompasses a range of approaches including the following: doing no harm, cultivating self-awareness, and seeing the whole patient; and concrete practices such as preparing in advance for uncertainty, working on teams, and learning from experience. These philosophies and practices can be structured and codified in order to teach residents how to develop intraoperative judgment techniques.

How Do Pediatric Neurosurgeons Make Intraoperative Decisions?

OBJECTIVE: The purpose of this research was to explore the processes by which pediatric neurosurgeons make intraoperative decisions when they encounter something unexpected or uncertain while they are operating. METHODS: The study used the grounded theory method of data collection and analysis. Twenty-six pediatric neurosurgeons (PNs) from 12 countries were interviewed about the process by which they make intraoperative decisions. Data were analyzed line by line, and constant comparison was used to examine relationships within and across codes and categories. RESULTS: PNs described a complex process that existed along a spectrum in making intraoperative decisions. Three types of response processes emerged from the analysis: 1) internal processing, with the themes of getting oneself under control and performing control for the surgical team; 2) action processes that included the themes of stabilizing the patient, responding intuitively/automatically when making decisions, and shifting surgical strategies; and 3) analytical processing that involved assessing the situation, consulting with colleagues and the family of the patient when making intraoperative decisions. CONCLUSIONS: The findings from this study contribute novel information on PNs' intraoperative decision making processes and can be used to train resident neurosurgeons about the various components involved in these processes. This research suggests that new models of decision making are needed within the medical and neurosurgical context and inspire a new set of questions about the process by which surgeons make life and death decisions in the operating room.

How can surgeons facilitate resident intraoperative decision-making?

BACKGROUND: Cognitive skills such as decision-making are critical to developing operative autonomy. We explored resident decision-making using a recollection of specific examples, from the attending surgeon and resident, after laparoscopic cholecystectomy. METHODS: In a separate semi-structured interview, the attending and resident both answered five questions, regarding the resident's operative roles and decisions, ways the attending helped, times when the attending operated, and the effect of the relationship between attending and resident. Themes were extracted using inductive methods. RESULTS: Thirty interviews were completed after 15 cases. Facilitators of decision-making included dialogue, safe struggle, and appreciation for retraction. Aberrant case characteristics, anatomic uncertainties, and time pressures provided barriers. Attending-resident mismatches included descriptions of transitioning control to the attending. CONCLUSIONS: Reciprocal dialogue, including concept-driven feedback, is helpful during intraoperative teaching. Unanticipated findings impede resident decision-making, and we describe differences in understanding transfers of operative control. Given these factors, we suggest that pre-operative discussions may be beneficial.