This Week in Surgery — Jul 10, 2026

Welcome to This Week in Surgery. This week we are covering ten notable papers spanning three broad themes: patient selection and optimization in abdominal wall reconstruction, the clinical and cognitive impacts of advanced robotic platforms, and critical timing and safety considerations in general and oncologic surgery. Let us dive in.

Our first theme today focuses on patient selection, optimization, and long-term outcomes in abdominal wall reconstruction and hernia surgery. We begin with the five-year outcomes of the PROVE-IT randomized controlled trial, published in Surgical Endoscopy, which compared patient-reported outcomes of robotic versus laparoscopic ventral hernia repair with intraperitoneal mesh [1]. The trial previously demonstrated comparable pain at one year, and this long-term follow-up evaluated forty-nine of the original seventy-five patients for patient-reported outcomes, and sixty-four patients for clinical follow-up. At a median of sixty-five months, patient-reported quality of life, measured by the HerQLes survey, and pain intensity, measured by the PROMIS three-a tool, were identical between the groups, with median scores of ninety-two and thirty-one, respectively. Patient-reported bulging was also similar, occurring in twenty-seven percent of the laparoscopic group and thirty percent of the robotic group. While the clinical recurrence rate was ten percent in the laparoscopic group and twenty-four percent in the robotic group, this difference was not statistically significant. Out of fourteen abdominal reoperations, only two patients in the laparoscopic group required elective surgery for recurrence, and no patients in either group required mesh excision. These findings suggest that both laparoscopic and robotic intraperitoneal mesh repairs yield comparable, durable outcomes at five years.

Staying with hernia outcomes, another study in Surgical Endoscopy evaluated longitudinal recurrence rates requiring reoperation among more than two hundred and sixty-five thousand patients undergoing inguinal hernia repair in New York and Florida databases between 2015 and 2021 [2]. The landscape of inguinal hernia repair changed dramatically over this period, with open repairs decreasing from nearly sixty-two percent to forty percent, while robotic repairs rose from just two percent to nearly seventeen percent. Interestingly, in 2015, the rate of recurrence requiring reoperation was significantly higher for robotic repairs at nearly four percent, compared to under two percent for both laparoscopic and open repairs. However, by 2021, the recurrence rate after robotic repair declined to match the other approaches, reflecting a clear learning curve. When analyzing high-volume laparoscopic institutions, both laparoscopic and robotic repairs were associated with a lower risk of recurrence requiring reoperation compared to open repairs, roughly halving the risk. Conversely, independent risk factors for recurrence requiring reoperation included older age, White race, chronic obstructive pulmonary disease, obesity, hypertension, and tobacco use. This highlights that as robotic experience has matured, its outcomes have aligned with established techniques, especially in high-volume centers.

To optimize these hernia outcomes, we must look at modifiable preoperative factors. A study in Surgical Endoscopy utilized the Abdominal Core Health Quality Collaborative database of over seventeen thousand patients to assess the impact of improved preoperative activity levels and smoking cessation on ventral hernia repair outcomes [4]. For patients with an ASA class of two or higher, participating in any level of preoperative exercise significantly improved postoperative outcomes. Specifically, for ASA class two patients, sporadic and intense exercise regimens reduced the odds of thirty-day readmission. For ASA class three patients, moderate and intense exercise significantly reduced the risk of surgical site infections, with a clear trend toward fewer surgical site occurrences and occurrences requiring procedural intervention. Surprisingly, smoking cessation within one year prior to surgery was not associated with any significant differences in postoperative outcomes compared to active smokers. This suggests that structured preoperative exercise programs may represent an exceptionally effective, modifiable strategy to improve outcomes in higher-risk patients, perhaps even more immediately impactful than short-term smoking cessation.

When planning these complex abdominal wall reconstructions, we must also consider patient frailty and postoperative management. A retrospective review in Surgical Endoscopy investigated the impact of frailty, measured by the modified five-item Frailty Index, in three hundred and ninety-four patients undergoing complex abdominal wall reconstruction [9]. Frail patients, defined as having a score of two or higher, were older and had a higher prevalence of hypertension, diabetes, chronic obstructive pulmonary disease, and congestive heart failure. On unadjusted analysis, frail patients had a longer hospital stay of over six days compared to five days for non-frail patients. However, after propensity score matching to control for confounding variables, frailty was not independently associated with hospital length of stay, hernia recurrence, or surgical site morbidity. This indicates that while frail patients may consume more resources unadjusted, frailty alone should not be used in isolation to preclude patients from undergoing complex abdominal wall reconstruction.

In these same large open hernia repairs, preventing venous thromboembolism is critical, but the ideal prophylactic agent remains debated. A retrospective cohort study of three hundred and nine patients in Surgical Endoscopy compared low molecular weight heparin to unfractionated heparin for venous thromboembolism prophylaxis in open repairs of large hernias, with a median hernia area of one hundred and fifty square centimeters [8]. Venous thromboembolism occurred in just over three percent of the low molecular weight heparin group compared to just over one percent in the unfractionated heparin group, a difference that was not statistically significant. Bleeding complications were also identical between the groups, with twelve patients in each group requiring a postoperative blood transfusion, and five in each group requiring reoperation for bleeding. Multivariable analysis showed that longer operative times and higher ASA class were the primary drivers of bleeding complications, while longer operative time was the main driver of venous thromboembolism. These findings suggest that both low molecular weight heparin and unfractionated heparin are reasonable options, and selection can be safely guided by institutional protocols or patient-specific factors.

Our second theme explores advanced minimally invasive and robotic techniques, focusing on how these platforms affect surgeon cognitive workload and patient safety in complex procedures. A prospective, multicenter study in Surgical Endoscopy compared robotic versus laparoscopic gastrojejunal anastomosis during gastric bypass in one hundred and nine cases to evaluate technical precision and surgeon cognitive workload [7]. While global objective performance scores were comparable between the two platforms, nested analysis showed that robotic assistance significantly reduced surgeon frustration. Furthermore, the robotic platform significantly reduced overall cognitive workload, as measured by the NASA Task Load Index, in both primary and complex revisional cases. Robotic assistance also improved task-specific precision in primary cases, resulting in fewer incorrect suture placements and missed knot throws. Crucially, the significant inverse correlation between cognitive workload and performance observed during laparoscopy—where higher stress led to poorer performance—was completely neutralized in the robotic cohort. This suggests that the robotic platform acts as a performance stabilizer, decoupling surgeon stress from technical fidelity during demanding reconstructive tasks.

However, the adoption of robotic platforms in highly complex oncologic procedures requires careful patient selection and an understanding of when to convert to open surgery. A multi-institutional study in Surgical Endoscopy analyzed thirty-six conversions to laparotomy among three hundred and eleven elderly or obese high-risk patients undergoing attempted robotic pancreatoduodenectomy [10]. The conversion rate was approximately eleven percent, or one in nine cases, with the most common reason being a strategic surgeon decision, followed by vascular involvement. Independent predictors of conversion included preoperative biliary drainage, which increased the risk by over seven-fold, and vascular involvement, which increased the risk by over twenty-two-fold. Conversely, male sex was protective, and having a surgeon with an experience of more than twenty cases reduced the conversion risk by more than eighty percent. Conversion was associated with longer hospital stays, higher thirty-day and ninety-day mortality, and increased postoperative complications. This highlights the importance of careful patient selection, recognizing vascular complexity, and maintaining a low threshold for early, strategic conversion rather than viewing conversion as an operative failure.

Our final theme addresses perioperative optimization and clinical decision-making in general and oncologic surgery. We begin with a highly practical study in Surgical Endoscopy addressing the management of glucagon-like peptide-1 receptor agonists before elective endoscopy [3]. These medications slow gastric emptying and increase the risk of retained gastric contents. In a retrospective study of over sixteen thousand patients undergoing elective esophagogastroduodenoscopy, continuing these medications was associated with a ten-fold higher risk of retained gastric contents compared to non-users. Holding the medication for two weeks successfully reduced the risk of retained gastric contents to a level statistically comparable to non-users. However, for patients with obesity, defined as a body mass index of twenty-eight or higher, even a two-week hold was associated with a ten-fold higher risk of retained gastric contents, suggesting that a longer hold or additional aspiration precautions may be necessary in this population.

Another critical timing decision in general surgery is when to perform laparoscopic cholecystectomy after endoscopic retrograde cholangiopancreatography for choledocholithiasis. A retrospective review of one hundred and ninety-three patients in Surgical Endoscopy evaluated surgical difficulty based on the interval between the two procedures [6]. Difficult cholecystectomy, defined as requiring a bailout procedure, an operative time over three hours, or blood loss of three hundred milliliters or more, occurred in approximately a quarter of the patients. Crucially, the incidence of a difficult surgery was significantly higher in the middle group, who underwent surgery between fifteen and sixty days after their endoscopic procedure, reaching thirty-three percent. This middle interval was associated with a more than six-fold increase in the odds of a difficult surgery compared to the early group, who were operated on within fourteen days. While waiting more than sixty days reduced surgical difficulty compared to the middle group, it was associated with a higher rate of recurrent biliary complications in the interim. This strongly suggests that the optimal window for surgery is within the first fourteen days after endoscopic retrograde cholangiopancreatography.

Finally, in oncologic surgery, a systematic review and meta-analysis in the Annals of Surgical Oncology evaluated the surgical feasibility and outcomes of neoadjuvant immune checkpoint inhibition in resectable stage three and four melanoma [5]. Across twenty studies comprising over thirteen hundred patients, neoadjuvant immunotherapy achieved a pathologic complete response rate of thirty-three percent and an overall pathologic response rate of fifty-nine percent. Importantly, failure or delay to surgery occurred in only nine percent of patients, and major surgical complications occurred in only eight percent, which is comparable to adjuvant approaches. However, systemic toxicity is common, with a quarter of patients experiencing major treatment-related adverse events of grade three or higher. Despite this toxicity, neoadjuvant therapy significantly reduced the risk of recurrence compared to adjuvant approaches, confirming that neoadjuvant immunotherapy preserves surgical feasibility while delivering substantial oncologic benefits.

If you only have time for one paper this week, make it the study by Shiihara and colleagues in Surgical Endoscopy on the timing of laparoscopic cholecystectomy after endoscopic retrograde cholangiopancreatography [6]. This paper provides clear, actionable evidence that performing cholecystectomy within fourteen days of the endoscopic procedure significantly reduces surgical difficulty and avoids the highly inflammatory fifteen-to-sixty-day window, which carries a six-fold higher risk of a difficult surgery.

Here are the key takeaways from this week in Surgery. First, structured preoperative exercise programs, even at moderate levels, are highly effective at reducing readmissions and wound infections in high-risk patients undergoing ventral hernia repair, whereas short-term smoking cessation within a year of surgery shows less immediate benefit. Second, holding glucagon-like peptide-1 receptor agonists for two weeks before elective endoscopy successfully reduces the risk of retained gastric contents to baseline levels for most patients, but this hold may still be insufficient for patients with obesity. Third, the optimal timing for laparoscopic cholecystectomy after endoscopic retrograde cholangiopancreatography is within the first fourteen days, as delaying surgery to between fifteen and sixty days significantly increases operative difficulty and the need for bailout procedures. Fourth, robotic platforms for complex gastrointestinal reconstructions significantly reduce surgeon cognitive workload and frustration, effectively decoupling surgeon stress from technical performance during demanding tasks. Fifth, in complex abdominal wall reconstruction, preoperative frailty scores alone should not be used to exclude patients from surgery, as matched analyses demonstrate comparable long-term outcomes to non-frail cohorts.

That's your roundup for This Week in Surgery. The full transcript and references are available on the episode page in your AudioScholar library. This is an AI-curated summary — for clinical decisions, always consult primary sources and current guidelines. See you next week.

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