Towards a tailored approach for patients with acute diverticulitis and abscess formation. The DivAbsc2023 multicentre case-control study.

BACKGROUND: This multicentre case-control study aimed to identify risk factors associated with non-operative treatment failure for patients with CT scan Hinchey Ib-IIb and WSES Ib-IIa diverticular abscesses. METHODS: This study included a cohort of adult patients experiencing their first episode of CT-diagnosed diverticular abscess, all of whom underwent initial non-operative treatment comprising either antibiotics alone or in combination with percutaneous drainage. The cohort was stratified based on the outcome of non-operative treatment, specifically identifying those who required emergency surgical intervention as cases of treatment failure. Multivariable logistic regression analysis to identify independent risk factors associated with the failure of non-operative treatment was employed. RESULTS: Failure of conservative treatment occurred for 116 patients (27.04%). CT scan Hinchey classification IIb (aOR 2.54, 95%CI 1.61;4.01, P < 0.01), tobacco smoking (aOR 2.01, 95%CI 1.24;3.25, P < 0.01), and presence of air bubbles inside the abscess (aOR 1.59, 95%CI 1.00;2.52, P = 0.04) were independent predictors of failure. In the subgroup of patients with abscesses > 5 cm, percutaneous drainage was not associated with the risk of failure or success of the non-operative treatment (aOR 2.78, 95%CI - 0.66;3.70, P = 0.23). CONCLUSIONS: Non-operative treatment is generally effective for diverticular abscesses. Tobacco smoking's role as an independent risk factor for treatment failure underscores the need for targeted behavioural interventions in diverticular disease management. IIb Hinchey diverticulitis patients, particularly young smokers, require vigilant monitoring due to increased risks of treatment failure and septic progression. Further research into the efficacy of image-guided percutaneous drainage should involve randomized, multicentre studies focussing on homogeneous patient groups.

Colonic Resection, Stoma, or Self-expanding Metal Stents for Obstructive Left Colon Cancer: the CROSCO-1 study protocol.

BACKGROUND: Colorectal cancer (CRC) is one of the most common cancers worldwide. There are several causes of a mechanical left bowel obstructive but CRC accounts for approximately 50% of cases and in 10-30% of whom it is the presenting syndrome. In most cases, the left colon is involved. At present, the range of therapeutic alternatives in the management of obstructive left CRC in emergency conditions (primary resection vs. staged resection with applied self-expanding metallic stents) is broad, whereas internationally validated clinical recommendations in each condition are still lacking. This enormous variability affects the scientific evidence on both the immediate and long-term surgical and oncological outcomes. METHODS: CROSCO-1 (Colonic Resection, Stoma or Self-expanding Metal Stents for Obstructive Left Colon Cancer) study is a national, multi-center, prospective observational study intending to compare the clinical results of all these therapeutic regimens in a cohort of patients treated for obstructive left-sided CRC. RESULTS: The primary aim of the CROSCO-1 study is the 1-year stoma rate of patients undergoing primary emergency surgical resection (Hartmann procedure or primary resection and anastomosis) compared with patients undergoing staged resection. Secondary outcomes are 30-day and 90-day major morbidity and mortality, 1-year quality of life and the timing of chemotherapy initiation in the two groups. Future CROSCO studies will follow in which, instead, we will evaluate the long-term oncological outcomes of the two treatment strategies. CONCLUSIONS: The results of a large prospective cohort study which will analyze what really happens in the common clinical practice of managing patients with obstructive left CRC will have the aim of understanding which is the best strategy in terms of surgical and oncological outcomes. Indeed, the CROSCO-1 study will analyze the early surgical outcomes for patients with obstructed left CRC. Future CROSCO studies will follow in which, instead, we will evaluate the long-term oncological outcomes of the two treatment strategies.

Safety of laparoscopic cholecystectomy performed by trainee surgeons with different cholangiographic techniques (SCOTCH): a prospective non-randomized trial on the impact of fluorescent cholangiography during laparoscopic cholecystectomy performed by trainees.

AIMS: The identification of the anatomical components of the Calot's Triangle during laparoscopic cholecystectomy (LC) might be challenging and its difficulty may increase when a surgical trainee (ST) is in charge, ultimately allegedly affecting also the incidence of common bile duct injuries (CBDIs). There are various methods to help reach the critical view of safety (CVS): intraoperative cholangiogram (IOC), critical view of safety in white light (CVS-WL) and near-infrared fluorescent cholangiography (NIRF-C). The primary objective was to compare the use of these techniques to obtain the CVS during elective LC performed by ST. METHODS: This was a multicentre prospective observational study (Clinicalstrials.gov Registration number: NCT04863482). The impact of three different visualization techniques (IOC, CVS-WL, NIRF-C) on LC was analyzed. Operative time and time to achieve the CVS were considered. All the participating surgeons were also required to fill in three questionnaires at the end of the operation focusing on anatomical identification of the general task and their satisfaction. RESULTS: Twenty-nine centers participated for a total of 338 patients: 260 CVS-WL, 10 IOC and 68 NIRF-C groups. The groups did not differ in the baseline characteristics. CVS was considered achieved in all the included case. Rates were statistically higher in the NIR-C group for common hepatic and common bile duct visualization (p = 0.046; p < 0.005, respectively). There were no statistically significant differences in operative time (p = 0.089) nor in the time to achieve the CVS (p = 0.626). Three biliary duct injuries were reported: 2 in the CVS-WL and 1 in the NIR-C. Surgical workload scores were statistically lower in every domain in the NIR-C group. Subjective satisfaction was higher in the NIR-C group. There were no other statistically significant differences. CONCLUSIONS: These data showed that using NIRF-C did not prolong operative time but positively influenced the surgeon's satisfaction of the performance of LC.

Diverticulitis, surgery, evidence-based medicine, and the Steve Jobs' dots: a narrative review.

PURPOSE: Emergency treatment of acute diverticulitis remains a hazy field. Despite a number of clinical studies, randomized controlled trials (RCTs), guidelines and surgical societies recommendations, the most critical hot topics have yet to be addressed. METHODS: Literature research from 1963 until today was performed. Data regarding the principal RCTs and observational studies were summarized in descriptive tables. In particular we aimed to focus on the following topics: the role of laparoscopy, the acute care setting, the RCTs, guidelines, observational studies and classifications proposed by literature, the problem in case of a pandemic, and the importance of adapting treatment /place/surgeon conditions. RESULTS: In the evaluation of these points we did not try to find any prospective evolution of the concepts achievements. On the contrary we simply report the individuals strands of research from a retrospective point of view, similarly to what Steve Jobes said: "you can't connect the dots looking forward; you can only connect them looking backwards. So you have to trust that the dots will somehow connect in your future". We have finally obtained what can be defined "a narrative review of the literature on diverticulitis". CONCLUSIONS: Not only evidence-based medicine but also the contextualization, as also the role of 'competent' surgeons, should guide to novel approach in acute diverticulitis management.

Minimally invasive versus open adrenalectomy for adrenocortical carcinoma: the keys surgical factors influencing the outcomes-a collective overview.

PURPOSE: Adrenocortical carcinoma (A.C.C.) is a rare tumour, often discovered at an advanced stage and associated with a poor prognosis. Surgery is the treatment of choice. We aimed to review the different surgical approaches trying to compare their outcome. METHODS: This comprehensive review has been carried out according to the PRISMA statement. The literature search was performed in PubMed, Scopus, the Cochrane Library and Google Scholar. RESULTS: Among all studies identified, 18 were selected for the review. A total of 14,600 patients were included in the studies, of whom 4421 were treated by mini-invasive surgery (M.I.S.). Ten studies reported 531 conversions from M.I.S. to an open approach (OA) (12%). Differences were reported for operative times as well as for postoperative complications more often in favour of OA, whereas differences for hospitalization time in favour of M.I.S. Some studies showed an R0 resection rate from 77 to 89% for A.C.C. treated by OA and 67 to 85% for tumours treated by M.I.S. The overall recurrence rate ranged from 24 to 29% for A.C.C. treated by OA and from 26 to 36% for tumours treated by M.I.S. CONCLUSIONS: OA should still be considered the standard surgical management of A.C.C. Laparoscopic adrenalectomy has shown shorter hospital stays and faster recovery compared to open surgery. However, the laparoscopic approach resulted in the worst recurrence rate, time to recurrence and cancer-specific mortality in stages I-III ACC. The robotic approach had similar complications rate and hospital stays, but there are still scarce results about oncologic follow-up.

Use of High Energy Devices (HEDs) versus electrocautery for laparoscopic cholecystectomy: a systematic review and meta-analysis of randomised controlled trials.

INTRODUCTION: According to the literature, there is no clear definition of a High Energy Devices (HEDs), and their proper indications for use are also unclear. Nevertheless, the flourishing market of HEDs could make their choice in daily clinical practice arduous, possibly increasing the risk of improper use for a lack of specific training. At the same time, the diffusion of HEDs impacts the economic asset of the healthcare systems. This study aims to assess the efficacy and safety of HEDs compared to electrocautery devices while performing laparoscopic cholecystectomy (LC). MATERIALS AND METHODS: On behalf of the Italian Society of Endoscopic Surgery and New Technologies, experts performed a systematic review and meta-analysis and synthesised the evidence assessing the efficacy and safety of HEDs compared to electrocautery devices while performing laparoscopic cholecystectomy (LC). Only randomised controlled trials (RCTs) and comparative observational studies were included. Outcomes were: operating time, bleeding, intra-operative and post-operative complications, length of hospital stay, costs, and exposition to surgical smoke. The review was registered on PROSPERO (CRD42021250447). RESULTS: Twenty-six studies were included: 21 RCTs, one prospective parallel arm comparative non-RCT, and one retrospective cohort study, while three were prospective comparative studies. Most of the studies included laparoscopic cholecystectomy performed in an elective setting. All the studies but three analysed the outcomes deriving from the utilisation of US sources of energy compared to electrocautery. Operative time was significantly shorter in the HED group compared to the electrocautery group (15 studies, 1938 patients; SMD - 1.33; 95% CI - 1.89 to 0.78; I2 = 97%, Random-effect). No other statistically significant differences were found in the other examined variables. CONCLUSIONS: HEDs seem to have a superiority over Electrocautery while performing LC in terms of operative time, while no difference was observed in terms of length of hospitalisation and blood loss. No concerns about safety were raised.

Surveillance strategies following curative resection and non-operative approach of rectal cancer: How and how long? Review of current recommendations.

Different follow-up strategies are available for patients with rectal cancer following curative treatment. A combination of biochemical testing and imaging investigation, associated with physical examination are commonly used. However, there is currently no consensus about the types of tests to perform, the timing of the testing, and even the need for follow-up at all has been questioned. The aim of this study was to review the evidence of the impact of different follow-up tests and programs in patients with non-metastatic disease after definitive treatment of the primary. A literature review was performed of studies published on MEDLINE, EMBASE, the Cochrane Library and Web of Science up to November 2022. Current published guidelines from the most authoritative specialty societies were also reviewed. According to the follow-up strategies available, the office visit is not efficient but represents the only way to maintain direct contact with the patient and is recommended by all authoritative specialty societies. In colorectal cancer surveillance, carcinoembryonic antigen represents the only established tumor marker. Abdominal and chest computed tomography scan is recommended considering that the liver and lungs are the most common sites of recurrence. Since local relapse in rectal cancer is higher than in colon cancer, endoscopic surveillance is mandatory. Different follow-up regimens have been published but randomized comparisons and meta-analyses do not allow to determine whether intensive or less intensive follow-up had any significant influence on survival and recurrence detection rate. The available data do not allow the drawing of final conclusions on the ideal surveillance methods and the frequency with which they should be applied. It is very useful and urgent for clinicians to identify a cost-effective strategy that allows early identification of recurrence with a special focus for high-risk patients and patients undergoing a "watch and wait" approach.

High-energy devices in different surgical settings: lessons learnt from a full health technology assessment report developed by SICE (Società Italiana di Chirurgia Endoscopica).

BACKGROUND: The present paper aims at evaluating the potential benefits of high-energy devices (HEDs) in the Italian surgical practice, defining the comparative efficacy and safety profiles, as well as the potential economic and organizational advantages for hospitals and patients, with respect to standard monopolar or bipolar devices. METHODS: A Health Technology Assessment was conducted in 2021 assuming the hospital perspective, comparing HEDs and standard monopolar/bipolar devices, within eleven surgical settings: appendectomy, hepatic resections, colorectal resections, cholecystectomy, splenectomy, hemorrhoidectomy, thyroidectomy, esophago-gastrectomy, breast surgery, adrenalectomy, and pancreatectomy. The nine EUnetHTA Core Model dimensions were deployed considering a multi-methods approach. Both qualitative and quantitative methods were used: (1) a systematic literature review for the definition of the comparative efficacy and safety data; (2) administration of qualitative questionnaires, completed by 23 healthcare professionals (according to 7-item Likert scale, ranging from - 3 to + 3); and (3) health-economics tools, useful for the economic evaluation of the clinical pathway and budget impact analysis, and for the definition of the organizational and accessibility advantages, in terms of time or procedures' savings. RESULTS: The literature declared a decrease in operating time and length of stay in using HEDs in most surgical settings. While HEDs would lead to a marginal investment for the conduction of 178,619 surgeries on annual basis, their routinely implementation would generate significant organizational savings. A decrease equal to - 5.25/-9.02% of operating room time and to - 5.03/-30.73% of length of stay emerged. An advantage in accessibility to surgery could be hypothesized in a 9% of increase, due to the gaining in operatory slots. Professionals' perceptions crystallized and confirmed literature evidence, declaring a better safety and effectiveness profile. An improvement in both patients and caregivers' quality-of-life emerged. CONCLUSIONS: The results have demonstrated the strategic relevance related to HEDs introduction, their economic sustainability, and feasibility, as well as the potentialities in process improvement.

Hyperthermic intraperitoneal chemotherapy (HIPEC) as adjuvant and therapeutic options for patients with advanced gastric cancer at high risk of recurrence or established peritoneal metastases: a single-centre experience.

Peritoneal metastases from gastric cancer (PM-GC) have a detrimental prognostic impact on survival and there is a lack of consensus regarding treatment. Cytoreductive surgery (CRS) and hyperthermic intraperitoneal chemotherapy (HIPEC) may offer a chance for prolonged survival as compared to standard chemotherapy. This study aims to present our experience in the management of GC with CRS and HIPEC. This is a single-centre retrospective study. Patients were divided into two groups: patients with GC at high risk for developing PM-GC (adjuvant HIPEC group) and patients with PM-GC or positive peritoneal cytology (therapeutic CRS and HIPEC group). Overall survival (OS) and disease-free survival (DFS) were considered as outcome measures. A total of 41 patients with a GC primary received surgery and HIPEC: 14 patients (34.1%) were in the adjuvant HIPEC group, while 27 patients (65.9%) were in the therapeutic CRS and HIPEC group. In the adjuvant HIPEC group, the 1- and 3-year OS were 85.7% and 71.4%, while 1- and 3-year DFS were 71.4% and 64.3%, respectively. In the therapeutic CRS and HIPEC group, OS was 60.3% and 35.1% at 1 and 3 years, whereas 1- and 3-year DFS were 38% and 32.6%, respectively. Univariate survival analysis of patients in the therapeutic CRS and HIPEC group showed that the presence of lymph node metastasis and signet ring cell histology predicted worse OS, while PCI > 12 and lymph node metastasis were associated with decreased DFS. Treatment of highly selected patients with GC at high risk of peritoneal recurrence or established PM with CRS and HIPEC showed satisfactory results in terms of OS and DFS.

Low-pressure versus standard-pressure pneumoperitoneum in laparoscopic cholecystectomy: a systematic review and meta-analysis of randomized controlled trials.

INTRODUCTION: It has been previously demonstrated that the rise of intra-abdominal pressures and prolonged exposure to such pressures can produce changes in the cardiovascular and pulmonary dynamic which, though potentially well tolerated in the majority of healthy patients with adequate cardiopulmonary reserve, may be less well tolerated when cardiopulmonary reserve is poor. Nevertheless, theoretically lowering intra-abdominal pressure could reduce the impact of pneumoperitoneum on the blood circulation of intra-abdominal organs as well as cardiopulmonary function. However, the evidence remains weak, and as such, the debate remains unresolved. The aim of this systematic review and meta-analysis was to demonstrate the current knowledge around the effect of pneumoperitoneum at different pressures levels during laparoscopic cholecystectomy. MATERIALS AND METHODS: This systematic review and meta-analysis were reported according to the recommendations of the 2020 updated Preferred Reporting Items for Systematic reviews and Meta-analyses (PRISMA) guidelines, and the Cochrane handbook for systematic reviews of interventions. RESULTS: This systematic review and meta-analysis included 44 randomized controlled trials that compared different pressures of pneumoperitoneum in the setting of elective laparoscopic cholecystectomy. Length of hospital, conversion rate, and complications rate were not significantly different, whereas statistically significant differences were observed in post-operative pain and analgesic consumption. According to the GRADE criteria, overall quality of evidence was high for intra-operative bile spillage (critical outcome), overall complications (critical outcome), shoulder pain (critical outcome), and overall post-operative pain (critical outcome). Overall quality of evidence was moderate for conversion to open surgery (critical outcome), post-operative pain at 1 day (critical outcome), post-operative pain at 3 days (important outcome), and bleeding (critical outcome). Overall quality of evidence was low for operative time (important outcome), length of hospital stay (important outcome), post-operative pain at 12 h (critical outcome), and was very low for post-operative pain at 1 h (critical outcome), post-operative pain at 4 h (critical outcome), post-operative pain at 8 h (critical outcome), and post-operative pain at 2 days (critical outcome). CONCLUSIONS: This review allowed us to draw conclusive results from the use of low-pressure pneumoperitoneum with an adequate quality of evidence.

Intraperitoneal chemotherapy for ovarian cancer with peritoneal metastases, systematic review of the literature and focused personal experience.

Epithelial ovarian cancer (EOC) causes 60% of ovarian cancer cases and is the fourth most common cause of death from cancer in women. The standard of care for EOC includes a combination of surgery followed by intravenous chemotherapy. Intraperitoneal (IP) chemotherapy (CT) has been introduced into the therapeutic algorithm of EOC with positive results. To explore existing results regarding intraperitoneal chemotherapy a systematic review of the literature and an analysis of our own institutional prospective database of patients treated with cytoreductive surgery plus hyperthermic intraperitoneal chemotherapy (HIPEC) for EOC at different stages were conducted. The focused report concerning our personal experience with advanced EOC treated with cytoreductive surgery and HIPEC produced the following results: In 57 patients cisplatin + paclitaxel as HIPEC was the only significant factor improving overall survival (OS) at multivariate analysis (OR 6.54, 95% CI: 1.24-34.47, P=0.027). Patients treated with HIPEC cisplatin + paclitaxel showed a median OS of 46 months (SD 6.4, 95% CI: 33.4-58.6), while patients treated with other HIPEC regimens showed a median OS of 12 months (SD 3.1, 95% CI: 6.0-18.0). The 2y-OS was 72% and 3y-OS was 68% for cisplatin + paclitaxel as HIPEC, while the 2y- and 3y-OS was 0% for other HIPEC regimens. Patients treated with HIPEC cisplatin + paclitaxel showed a median disease-free survival (DFS) of 13 months (SD 1.6, 95% CI: 9.9-16.1), while patients treated with other HIPEC regimens showed a median DFS of 8 months (SD 3.1, 95% CI: 1.9-14.1). In conclusion, HIPEC cisplatin + paclitaxel in ovarian cancer showed positive results that may be considered semi-definitive according to the level of evidence and should be considered a starting point for further investigations. At present HIPEC cisplatin + paclitaxel should be proposed to patients with advanced ovarian cancer as standard treatment at almost all stages of disease. Platinum + taxane-based intraperitoneal regimens demonstrated superior results compared to other regimens.

Suicidal fall from heights trauma: difficult management and poor results.

BACKGROUND: Self-inflicted injuries represent a consistent cause of trauma and falls from heights (FFH) represent a common dynamic used for suicidal attempts. The aim of the current report is to compare, among FFH patients, unintentional fallers and intentional jumpers in terms of demographical characteristics, clinical-pathological parameters and mortality, describing the population at risk for suicide by jumping and the particular patterns of injury of FFH patients. MATERIALS AND METHODS: The present study is a retrospective analysis of prospectively collected data regarding FFH patients, extracted from the Trauma Registry of the Papa Giovanni XXIII Hospital in Bergamo, Italy. Demographic characteristics, clinical-pathological parameters, patterns of injury, outcomes including mortality rates of jumpers and fallers were analyzed and compared. RESULTS: The FFH trauma group included 299 patients between April 2014 and July 2016: 259 of them (86.6%) were fallers and 40 (13.4%) were jumpers. At multivariate analysis both young age (p = 0.01) and female sex (p < 0.001) were statistical significant risk factors for suicidal attempt with FFH. Systolic blood pressure (SBP) at the arrival was lower and ISS was higher in the self-inflicted injury group (SBP 133.35 ± 23.46 in fallers vs 109.89 ± 29.93 in jumpers, p < 0.001; ISS in fallers 12.61 ± 10.65 vs 18.88 ± 11.80 in jumpers, p = 0.001). Jumpers reported higher AIS score than fallers for injuries to: face (p = 0.023), abdomen (p < 0.001) and extremities (p = 0.004). The global percentage of patients who required advanced or definitive airway control was significantly higher in the jumper group (35.0% vs 16.2%, p = 0.005). In total, 75% of jumpers and the 34% of fallers received surgical intervention (p < 0.001). A higher number of jumpers needed ICU admission, as compared to fallers (57.5% vs 23.6%, p < 0.001); jumpers showed longer total length of stay (26.00 ± 24.34 vs 14.89 ± 13.04, p = 0.007) and higher early mortality than fallers (7.5% vs 1.2%, p = 0.008). CONCLUSIONS: In Northern Italy, the population at highest risk of suicide by jumping and requiring Trauma Team activation is greatly composed by middle-aged women. Furthermore, FFH is the most common suicidal method. Jumpers show tendency to "feet-first landing" and seem to have more severe injuries, worse outcome and a higher early mortality rate, as compared to fallers. The Trauma Registry can be a useful tool to describe clusters of patients at high risk for suicidal attempts and to plan preventive and clinical actions, with the aim of optimizing hospital care for FFH trauma patients.

The need for red blood cell transfusions in the emergency department as a risk factor for failure of non-operative management of splenic trauma: a multicenter prospective study.

INTRODUCTION: The majority of patients with splenic trauma undergo non-operative management (NOM); around 15% of these cases fail NOM and require surgery. The aim of the current study is to assess whether the hemodynamic status of the patient represents a risk factor for failure of NOM (fNOM) and if this may be considered a relevant factor in the decision-making process, especially in Centers where AE (angioembolization), intensive monitoring and 24-h-operating room are not available. Furthermore, the presence of additional risk factors for fNOM was investigated. MATERIALS AND METHODS: This is a multicentre prospective observational study, including patients presenting with blunt splenic trauma older than 17 years, managed between 2014 and 2016 in two Italian trauma centres (ASST Papa Giovanni XXIII in Bergamo and Sant'Anna University Hospital in Ferrara-Italy). The risk factors for fNOM were analyzed with univariate and multivariate analyses. RESULTS: In total, 124 patients were included in the study. In univariate analysis, the risk factors for fNOM were AAST grade > 3 (fNOM 37.5% vs 9.1%, p = 0.024), and the need of red blood cell (RBC) transfusion in the emergency department (ED) (fNOM 42.9% vs 8.9%, p = 0.011). Multivariate analysis showed that the only significant risk factor for fNOM was the need for RBC transfusion in the ED (p = 0.049). CONCLUSIONS: The current study confirms the contraindication to NOM in case of hemodynamically instability in case of splenic trauma, as indicated by the most recent guidelines; attention should be paid to patients with transient hemodynamic stability, including patients who require transfusion of RBC in the ED. These patients could benefit from AE; in centers where AE, intensive monitoring and an 24-h-operating room are not available, this particular subgroup of patients should probably be treated with operative management.

Routine prophylactic ureteral stenting before cytoreductive surgery and hyperthermic intraperitoneal chemotherapy: Safety and usefulness from a single-center experience.

OBJECTIVE: There are very few evidences about safety and usefulness of routine prophylactic ureteral stenting (PUS) before cytoreductive surgery (CRS) and hyperthermic intraperitoneal chemotherapy (HIPEC). MATERIAL AND METHODS: An analysis of prospectively collected data about patients who underwent CRS and HIPEC for different sites of primary disease was carried out focusing on ureteral complications. RESULTS: A total of 138 patients who underwent CRS and HIPEC between December 2010 and June 2017 were considered. All patients underwent PUS before CRS and HIPEC. Of them, 91 (66.4%) patients received pelvic peritonectomy, 49 (35.8%) pelvic lymphadenectomy, 31 (22.6%) left hemicolectomy, 44 (32.4%) right hemicolectomy, 46 (33.6%) rectal resection, 56 (40.9%) hysteroannessiectomy, and 39 (28.5%) appendectomy. There was one (0.7%) postoperative ureteral fistula. The cumulative risk of ureteral stent-related major complications was 4.3% (two patients (1.4%) had protracted gross hematuria, two patients (1.4%) had urinary sepsis, and three patients (2.9%) developed hydronephrosis after a period from removing ureteral stents and required restenting. Morbidity due to ureteral stenting was associated with a longer length of stay (LOS) (p=0.053). A total of 52 patients (44.1%) developed renal dysfunction according to the RIFLE (Risk, Injury, Failure, Loss of kidney function, End-stage kidney-disease) criteria: 19.5% were in risk class, 10.2% in acute renal injury class, and 14.4% in acute renal failure class. CONCLUSION: PUS could be a useful tool for reducing iatrogenic ureteral injury, but it is associated with a non-negligible morbidity, which implies longer LOS. A more accurate patient selection for PUS is necessary.

The World Society of Emergency Surgery (WSES) spleen trauma classification: a useful tool in the management of splenic trauma.

Background: The World Society of Emergency Surgery (WSES) spleen trauma classification meets the need of an evolution of the current anatomical spleen injury scale considering both the anatomical lesions and their physiologic effect. The aim of the present study is to evaluate the efficacy and trustfulness of the WSES classification as a tool in the decision-making process during spleen trauma management. Methods: Multicenter prospective observational study on adult patients with blunt splenic trauma managed between 2014 and 2016 in two Italian trauma centers (ASST Papa Giovanni XXIII in Bergamo and Sant'Anna University Hospital in Ferrara). Risk factors for operative management at the arrival of the patient and as a definitive treatment were analyzed. Moreover, the association between the different WSES grades of injury and the definitive management was analyzed. Results: One hundred twenty-four patients were included. At multivariate analysis, a WSES splenic injury grade IV is a risk factor for the operative management both at the arrival of the patients and as a definitive treatment. WSES splenic injury grade III is a risk factor for angioembolization. Conclusions: The WSES classification is a good and reliable tool in the decision-making process in splenic trauma management.

Never put equipoise in appendix! Final results of ASAA (antibiotics vs. surgery for uncomplicated acute appendicitis in adults) randomized controlled trial.

Acute appendicitis is the most common surgical emergency; however, its etiology and diagnosis are still discussed with a considerable proportion of wrong diagnosis resulting in appendectomies for non inflamed appendix. Moreover, the biologic function of the appendix is still unclear. For uncomplicated acute appendicitis the conservative treatment with antibiotics has been proposed with interesting results. The aim of this study was to compare surgical treatment vs. antibiotics in uncomplicated acute appendicitis. This is a monocentric randomized controlled trial comparing surgery with antibiotic therapy in adults with uncomplicated acute appendicitis. The primary outcome was the success rate (resolution of symptoms within 2 weeks and no need for further treatments); secondary outcomes were complication rate; negative appendectomy rate (only in surgical arm); and long-term outcomes within a year as recurrence. The study was designed as a non-inferiority trial. From September 2011 to December 2014, 224 patients fulfilled the eligibility criteria and 45 patients were randomized. Twenty four patients (53.3%) were randomly assigned to surgery and 21 (46.6%) to antibiotic therapy. In surgical group primary outcome was reached for all the patients; secondary negative outcomes were recorded in five patients (22.7%): two cases of negative appendectomies, three wound infections. In antibiotics group treatment fails in 16.8% of cases; secondary negative outcomes were recorded in one patient who experienced relapse of AA at 30 days No further events or complications were observed at 1-year follow-up. Due to the poor patients' accrual the study had no enough statistical power to demonstrate the non-inferiority of conservative treatment and results were inconclusive. Due to the poor patient's accrual rate the study failed to demonstrate the non-inferiority of conservative treatment in uncomplicated acute appendicitis. On the other hand the study demonstrates the difficulty in performing randomized trials in emergency surgery and focus on the ethical aspects.

Open abdomen and entero-atmospheric fistulae: An interim analysis from the International Register of Open Abdomen (IROA).

INTRODUCTION: No definitive data describing associations between cases of Open Abdomen (OA) and Entero-atmospheric fistulae (EAF) exist. The World Society of Emergency Surgery (WSES) and the Panamerican Trauma Society (PTS) thus analyzed the International Register of Open Abdomen (IROA) to assess this question. MATERIAL AND METHODS: A prospective analysis of adult patients enrolled in the IROA. RESULTS: Among 649 adult patients with OA 58 (8.9%) developed EAF. Indications for OA were peritonitis (51.2%) and traumatic-injury (16.8%). The most frequently utilized temporary abdominal closure techniques were Commercial-NPWT (46.8%) and Bogotà-bag (21.9%). Mean OA days were 7.9 ± 18.22. Overall mortality rate was 29.7%, with EAF having no impact on mortality. Multivariate analysis associated cancer (p = 0.018), days of OA (p = 0.003) and time to provision-of-nutrition (p = 0.016) with EAF occurrence. CONCLUSION: Entero-atmospheric fistulas are influenced by the duration of open abdomen treatment and by the nutritional status of the patient. Peritonitis, intestinal anastomosis, negative pressure and oral or enteral nutrition were not risk factors for EAF during OA treatment.