Search Results (190)

Biofilms are structured communities of microorganisms encased in a self-produced extracellular matrix, and they represent one of the most widespread forms of microbial life on Earth. Their presence poses serious challenges in both environmental and clinical settings. In natural and industrial systems, biofilms contribute to water contamination, pipeline corrosion, and biofouling. Clinically, biofilm-associated infections are responsible for approximately 80% of all microbial infections, including endocarditis, osteomyelitis, cystic fibrosis, and chronic sinusitis. A particularly critical concern is their colonization of medical devices, where biofilms can lead to chronic infections, implant failure, and increased mortality. Implantable devices, such as orthopedic implants, cardiac pacemakers, cochlear implants, urinary catheters, and hernia meshes, are highly susceptible to microbial attachment and biofilm development. These infections are often recalcitrant to conventional antibiotics and frequently necessitate surgical revision. In the United States, over 500,000 biofilm-related implant infections occur annually, with prosthetic joint infections alone projected to incur revision surgery costs exceeding USD 500 million per year—a figure expected to rise to USD 1.62 billion by 2030. To address these challenges, surface modification of medical devices has emerged as a promising strategy to prevent bacterial adhesion and biofilm formation. This review focuses on recent advances in chemical surface functionalization using non-antibiotic agents, such as enzymes, chelating agents, quorum sensing quenching factors, biosurfactants, oxidizing compounds and nanoparticles, designed to enhance antifouling and mature biofilm eradication properties. These approaches aim not only to prevent device-associated infections but also to reduce dependence on antibiotics and mitigate the development of antimicrobial resistance. Full article

Sedation and anesthesia are essential for ensuring animal welfare during surgical procedures such as hernia repair in swine. However, the number of sedative and anesthetic agents officially approved for livestock use remained limited. This study evaluated the sedative efficacy and serotonergic effects of a romifidine/ketamine/diazepam protocol, with and without the addition of tramadol, in swine undergoing umbilical hernia repair. Sixty-six crossbred Large White swine were randomly allocated to three groups: LL (lidocaine 4 mg/kg by infiltration), LT (lidocaine 2 mg/kg by infiltration + tramadol 2 mg/kg intraperitoneally), and TT (lidocaine2 mg/kg by infiltration + tramadol 4 mg/kg intraperitoneally). The physiological parameters heart rate, arterial pressure, oxygen saturation, rectal body temperature, and respiratory rate were assessed. The depth of intraoperative anesthesia and postoperative sedation was assessed using an ordinal scoring system (0–3). Plasma serotonin (5-HT) concentration was measured at baseline and 24 h post-surgery. Physiological parameters remained within species-specific reference ranges throughout the procedure. Anesthesia depth scores significantly decreased over time in all groups (p ≤ 0.001), with the tramadol-treated groups (LT and TT) showing more prolonged deeper anesthesia. Postoperative sedation was significantly higher in the TT group (p ≤ 0.001). Serotonin concentration decreased in LL, increased in LT, and remained stable in TT. These findings suggest that tramadol may enhance sedation and recovery, potentially through serotonergic modulation. Moreover, serotonin could serve as a physiological marker warranting further investigation in future studies of anesthetic protocols in veterinary medicine. Full article

Hernia is a physiological condition that significantly impacts patients’ quality of life. Surgical treatment for hernias often involves the use of specialized meshes to support the abdominal wall. While this method is highly effective, it frequently leads to complications such as pain, infections, inflammation, adhesions, and even the need for revision surgeries. According to the Food and Drug Administration (FDA), hernia recurrence rates can reach up to 11%, surgical site infections occur in up to 21% of cases, and chronic pain incidence ranges from 0.3% to 68%. These statistics highlight the urgent need to improve mesh technologies to minimize such complications. The design and material composition of meshes are critical in reducing postoperative complications. Moreover, integrating drug-eluting properties into the meshes could address issues like infections and inflammation by enabling localized delivery of antibiotics and anti-inflammatory agents. Mesh design is equally important, with innovative structures like auxetic designs offering enhanced mechanical properties, flexibility, and tissue integration. These advanced designs can distribute stress more evenly, reduce fatigue, and improve performance in areas subjected to high pressures, such as during intense coughing, sneezing, or heavy lifting. Technological advancements, such as 3D printing, enable the precise fabrication of meshes with tailored designs and properties, providing new opportunities for innovation. By addressing these challenges, the development of next-generation mesh implants has the potential to reduce complications, improve patient outcomes, and significantly enhance quality of life for individuals undergoing hernia repair. Full article

Background and Objectives: Incisional hernia is a common complication following cytoreductive surgery (CRS) and hyperthermic intraperitoneal chemotherapy (HIPEC). This study aimed to identify patient and surgical factors associated with its occurrence. Materials and Methods: We conducted a retrospective analysis of 122 patients undergoing CRS and HIPEC. Logistic regression models were applied to identify predictors of incisional hernia development. Results: Incisional hernia occurred in 23.8% of patients. Hypertension was identified as an independent factor associated with increased risk. Peritoneal Cancer Index (PCI), operative time, and abdominal wall closure technique were not found to be significantly associated with hernia development. Conclusions: Preoperative identification of high-risk patients may support the adoption of targeted preventive strategies, including prophylactic mesh placement and enhanced postoperative surveillance. Full article

Inguinal hernia repair is one of the most commonly performed surgical procedures worldwide, with over 20 million cases annually. The evolution of hernia surgery has transitioned from tension-based techniques to tension-free approaches, significantly reducing recurrence rates. This review explores the history, advancements, and current trends in minimally invasive inguinal hernia repair, focusing on laparoscopic techniques such as transabdominal preperitoneal (TAPP), totally extraperitoneal (TEP), single-incision laparoscopic surgery (SILS), and robotic-assisted repair. The importance of prosthetic meshes is emphasized, detailing their mechanical properties, pore size, weight classifications, and biocompatibility. Additionally, various mesh fixation methods—including tacks, sutures, and glues—are analyzed, with a discussion on their impact on postoperative complications such as chronic pain, adhesions, and infection risk. The debate between TAPP and TEP techniques is examined, highlighting the ongoing quest to determine the most effective approach. Emerging advancements, including drug-loaded meshes and dual-layered prosthetics, aim to improve integration and reduce complications. Despite significant progress, no universally superior technique or mesh exists, underscoring the need for individualized surgical approaches. Future research should focus on optimizing materials, refining fixation strategies, and enhancing patient outcomes in minimally invasive hernia repair. Full article

Background and Aims: Gastroesophageal reflux disease (GERD) is the most common esophageal disorder worldwide and a progressive condition leading to Barrett’s esophagus and adenocarcinoma. Continuous medical therapy with proton pump inhibitors fails to restore the antireflux barrier and is unable to relieve symptoms in up to 40% of patients. A tailored and standardized antireflux surgical procedure may increase cure rates and meet patient expectations. Methods and Results: Antireflux surgery aims to reestablish the natural antireflux barrier, which includes the diaphragmatic crura, the lower esophageal sphincter (LES), and the angle of His along with the gastroesophageal flap valve. For decades, the Nissen total fundoplication has been the primary procedure and remains the gold standard for surgical treatment. Alternatives such as Toupet partial fundoplication, Dor partial fundoplication, and the magnetic sphincter augmentation (LINX™) procedure have been developed to mitigate side effects like dysphagia, gas-bloat syndrome, and the inability to belch or vomit. Recent clinical findings regarding a novel procedure, RefluxStop™, indicate that restoring the gastroesophageal flap valve, in conjunction with anterior fundoplication and a silicone device for stabilizing the LES beneath the diaphragm, can achieve lasting reflux control and enhance patient-reported outcomes. Conclusions: The planning of healthcare services and actionable strategies to improve equity and quality of treatment is critical to address the global burden of GERD. Modern laparoscopic surgery for GERD is safe and effective and should be performed in centers offering a complete diagnostic pathway and specific surgical techniques tailored to the individual GERD phenotype. Shared decision-making between the surgeon and the patient is essential for the choice of operation. A personalized approach can offer clinical benefits over total fundoplication and improve patient-reported outcomes. Full article

Background: The aim was to explore patients’ reflections related to their choice of participating or not in a multimodal prehabilitation randomised controlled trial (RCT) in relation to minor surgery. Methods: A qualitative study with 22 semi-structured in-depth interviews on patients awaiting ventral hernia repair was conducted between March and May 2024 and reported according to the COREQ guideline. All were eligible to participate in a prehabilitation RCT; twelve had accepted, and ten had declined. The interviews were analysed using Kirsti Malterud’s method of systematic text condensation, resulting in themes. Results: Five global themes were identified: “time commitment”, “research participation for the general good”, “personal benefits of RCT participation”, “ambivalence of own health and lifestyle”, and “complications after surgery”. All participants found the RCT and its prehabilitation programme a positive initiative. Those who had accepted to participate in the RCT emphasised personal benefits and contributing to research, while those who had declined expressed more ambivalence regarding lifestyle change, the extent of personal advantage, and prioritising of time. Conclusions: Those who declined RCT participation generally had more elaborate and ambivalent reflections than those who had accepted. Addressing ambivalence regarding lifestyle change, personal benefits, and prioritising time might be a relevant focus point for increasing inclusion rates in prehabilitation RCTs and in clinical practice to increase patients’ readiness for lifestyle change. Full article

Fetal surgery has emerged as a viable option for the management of selected congenital anomalies that result in severe or lethal outcomes if left untreated until birth. Conditions such as spina bifida, urinary tract obstruction, congenital cystic adenomatoid malformation, diaphragmatic hernia, sacrococcygeal teratoma, and twin–twin transfusion syndrome have shown improved prognosis after in utero intervention, open, or fetoscopically. Despite significant advances in surgical methods and anesthesia, preterm labor remains a primary concern. Stem cell transplantation and in utero gene therapy are developing, and they have the potential to expand the treatment window, as they minimize maternal complications. Hematopoietic stem cell transplantation, which is based on the immaturity of the fetal immune system, is a promising treatment for inherited disorders. Although many procedures of fetal interventions are now established, their safety and efficacy must be ensured and this requires optimal patient selection and choice of appropriate timing for intervention, adherence to ethical principles, and continuous research. Therefore, a multidisciplinary team, including specialists in maternal–fetal medicine, pediatric surgery, anesthesiology, neonatology, psychosocial support, and bioethics, is essential to guide comprehensive, patient-centered care. Fetal surgery is an evolving field that offers hope for conditions previously considered untreatable before birth. Full article

Background: Single-port laparoscopic hepatectomy is a minimally invasive modality for the treatment of benign and malignant liver lesions. Due to the method’s technical challenges, it is suitable for experienced hepatobiliary surgeons and selected groups of patients. The aim of this study was to evaluate the results of a single Slovenian center performing single-port laparoscopic hepatectomy with a literature overview. Methods: A single-center retrospective consecutive case series of the twenty-six patients with liver disease operated with the single-port technique from January 2018 to July 2024 at the Department of Abdominal Surgery at the University Medical Centre, Ljubljana, was performed. Lesions were located in easy-to-treat segments. Operative time, conversion rate, length of hospital stay, and surgical complications were recorded and evaluated. Results: We performed twenty-six single-port laparoscopic liver resections (median age 63.5, range 31 to 79 years). The mean operative time was 92 ± 31 min. None of the cases were converted to multi-port laparoscopic or open surgery. Safe resection margins were obtained in cases of malignant disease. The mean hospital stay was 4 days. The post-operative complication rate involving intervention was 7% (2/26). The incisional hernia rate was 11.5% (3/26). No life-threatening surgical complications or morbidity were noted. Conclusions: Single-port laparoscopic hepatectomy is a safe and feasible technique for the resection of benign and malignant liver lesions in the hands of skilled and well-trained hepatobiliary surgeons. Full article

Background: The simultaneous surgical treatment of acute appendicitis and inguinal hernia in children is still controversial. However, there are no established guidelines for the simultaneous surgical treatment of pediatric patients with acute appendicitis and inguinal hernia. The aim of this study is to evaluate the safety and efficacy of a simultaneous laparoscopic approach for acute appendicitis and inguinal hernia in a pediatric population. Methods: The case records of 2254 pediatric patients who underwent appendectomy at our institution between 1 January 2012 and 1 January 2025 were reviewed. Finally, 44 patients who met the inclusion criteria and had an inguinal hernia at the time of laparoscopic appendectomy were selected for further analysis. The patients who underwent single-stage surgery (simultaneous laparoscopic appendectomy and hernia repair) were assigned to group I (n = 25), while the patients who underwent delayed laparoscopic hernia repair were assigned to group II (n = 19). The groups were compared for final outcome, complications, rate of readmissions within 30 days of index surgery, duration of surgery, and length of hospital stay. Results: The mean age of all the included patients was 11.5 ± 4.0 years, with males slightly outnumbering females (n = 25, 56.8%). The study population consisted of two comparable groups in terms of age, anthropometric measures, gender distribution, and baseline clinical characteristics. A major difference between the two methods was the operation time, which was significantly longer in the single-stage group (53.5 ± 11.2 min vs. 41.5 ± 10.9 min; p = 0.001). Despite the difference in operative time, the length of hospital stay (3.5 ± 2.0 days vs. 3.5 ± 2.2 days; p = 0.899) was almost identical between the two groups, suggesting that the additional intraoperative time was not reflected in a prolonged recovery time. In addition, postoperative complications were rare and evenly distributed between both surgical strategies (n = 2 (8%) vs. n = 2 (10.5%); p = 0.772). All the complications were minor and were treated conservatively. Importantly, there was no recurrence of hernia in either group during the follow-up period. Conclusions: From a clinical perspective, these results suggest that the single-stage approach is feasible and safe, even in complicated appendicitis, particularly in cases where the postponement of hernia repair is not desirable. The longer operative time associated with the single-stage approach must be weighed against the potential benefits of avoiding a second surgical procedure and unnecessary anesthesia, reducing overall healthcare utilization, and minimizing patient burden. Full article

Background/Objectives: Ventral hernia repair has evolved with the introduction of minimally invasive techniques like l-IPOM and rTA-RM. While robotic surgery offers advantages in precision and ergonomics, its higher costs pose questions regarding its cost-effectiveness compared to laparoscopic approaches. Methods: A retrospective analysis of patients with primary or incisional ventral hernias undergoing either l-IPOM or rTA-RM between February 2022 and October 2023 was conducted. Data on demographics, surgical outcomes, hospital costs, disposable supplies, and robotic system expenses were collected. A one-to-one propensity score matching (PSM) was used to ensure comparability between the groups. Results: After matching, 30 patients were included in each group. The rTA-RM group had longer operative times (93.2 vs. 74.4 min, p = 0.004) but shorter hospital stays (1 day vs. 2 days, p = 0.003) and lower postoperative pain scores (median VAS score 3 vs. 5, p = 0.004). Total costs were comparable between rTA-RM and l-IPOM (EUR 6862 vs. EUR 6575, p = 0.32), with robotic surgery incurring higher capital costs but lower disposable supply costs (EUR 1057 vs. EUR 2006, p < 0.01). Conclusions: Despite the higher per-case cost associated with robotic systems, overall costs for rTA-RM were similar to those for l-IPOM, suggesting that robotic surgery may be cost-competitive due to lower disposable supply expenses and shorter hospital stays. Further research is needed to assess long-term outcomes and broader economic impacts. Full article

Background: Incisional hernias are a frequent complication following ileostomy closure, with rates reaching 24%. Protective ileostomies are commonly performed in colorectal surgery, but their closure presents a significant risk for abdominal wall defects. Identifying risk factors for incisional hernias at the ileostomy site is crucial for improving patient outcomes. Methods: This retrospective study analyzed data from 95 patients who underwent loop ileostomy closure at two Romanian hospitals between 2018 and 2023. Patient demographics, surgical details, and follow-up data were reviewed. Incisional hernias were diagnosed through clinical examination or radiological imaging. Statistical analyses, including univariate and multivariate regression, were performed to identify independent risk factors. Results: The incidence of incisional hernias at the ileostomy site was 13.7% (13/95). Univariate analysis identified BMI (HR 30.08; p = 0.007), previous hernia (HR 7.99; p = 0.059), radiotherapy (HR 299.15; p = 0.029), and chemotherapy (HR 0.004; p = 0.026) as significant factors. Multivariate analysis confirmed BMI > 30 kg/m² (HR 12.27; p = 0.002) and prior hernia (HR 8.14; p = 0.007) as independent risk factors. Conclusions: Obesity and previous hernias significantly increase the risk of incisional hernias following ileostomy closure. Radiological follow-up enhances early detection, and further studies should explore the benefits of prophylactic mesh reinforcement. Optimizing patient selection and surgical technique may reduce postoperative hernia rates, improving long-term outcomes. Full article

Background: Surgical complications are devastating both for patients and treating surgeons. When complications occur after bariatric procedures, due to specific characteristics of this population, management, although multidisciplinary, should always be led by a surgical team. Methods: We present major complications treated at our general surgery service over a seven-year period. Case series: We present five cases that were treated at our service after a bariatric procedure was performed. Two patients were operated on in another country and two more at another service. Three patients showed perforation and leak-related complications. One patient died due to refeeding syndrome complications after revisional surgery. Conclusions: Optimal preoperative evaluations and surgical planning are mandatory for any type of surgery including bariatric procedures, and attempting adequate and well-established surgical techniques extensively described in the medical literature is associated with better outcomes. It is also our understanding that easy channels of communication between patients and treating surgeons could avoid delays in detecting and treating life-threatening conditions. Full article

Background: Revisional bariatric surgery for recurrent weight gain is becoming more common, though it carries higher risks and may be less effective than primary bariatric surgery. This study compares clinical outcomes between primary and revisional duodenal switch (DS) in patients with a body mass index (BMI) > 55 kg/m². Methods: A retrospective cohort study was conducted on 20 patients who underwent either primary or revisional duodenal switch (DS) surgeries, including biliopancreatic diversion with duodenal switch (BPDDS) and Single-Anastomosis Duodeno-Ileal Bypass with Sleeve Gastrectomy (SADI-s), between January 2015 and December 2023. Revisional DS was defined as the conversion from Sleeve Gastrectomy (SG) to either BPDDS (C-BPDDS) or SADI-S (C-SADI-S). Perioperative and postoperative variables were analyzed. A statistical analysis was performed using chi-square and McNemar tests for categorical variables and Student’s t-test for continuous variables. A p-value of <0.05 was considered significant. Results: Eleven primary DS patients (six BPDDS, five SADI-s) and nine revisional DS patients (five C-BPDDS, four C-SADI-s) were included. The revisional group had a slightly higher preoperative BMI (57.56 ± 5.92 kg/m² vs. 55.93 kg/m² ± 6.91 kg/m²). Although operative times were shorter in the revisional group (153.20 ± 53.26 vs. 193.27 ± 46.79 min), the length of stay was longer (2.70 ± 1.25 vs. 2.18 ± 1.16 days). Primary DS patients experienced three minor late complications (dehydration, nephrolithiasis), whereas the revisional group had one major complication (internal hernia requiring reoperation). At the 12-month follow-up, both groups demonstrated similar outcomes in terms of percentage of total weight loss (%TWL) (primary DS: 25.25% ± 12.38 vs. revisional DS: 30.31% ± 10.79) and percentage of excess weight loss (%EWL) (primary DS: 48.41% ± 22.93 vs. revisional DS: 53.24% ± 14.48). Conclusions: Revisional DS was associated with shorter operation times and similar weight loss to primary DS. Additionally, it was accomplished safely and led to adequate and sustained weight loss in patients with a BMI greater than 55 kg/m². Full article

Purpose: Our aim is to offer an additional surgical option for patients with rectus diastasis, with or without associated abdominal wall hernias, through a minimally invasive approach with endoscopic surgical correction, presenting a new method for abdominal contouring via minimally invasive mini-abdominoplasty (MAMI). Ideas: According to the European Hernia Society (EHS) classification for RD, a widening greater than 2 cm of the linea alba is generally considered an indication for surgical correction. Recent approaches, such as MILA and SCOLA, are indicated for patients with a body mass index (BMI) of up to 28, based solely on height and weight. However, some authors consider this insufficient for determining the best surgical indication. Despite advances in skin retraction, there is still no evidence on how these devices affect postoperative outcomes when added to these techniques, as they depend on multiple factors such as age, skin firmness, number of passes, applied energy, etc. Consequently, even patients with a BMI of up to 28 may present significant flaccidity both above and below the umbilicus, as well as poor skin quality (thin, lax, with stretch marks), making SCOLA or MILA surgery alone unsuitable due to possible skin redundancy after surgery. Similarly, even patients with a high-positioned umbilicus, moderate flaccidity, and rectus diastasis, who in the past would have been strictly indicated for abdominoplasty, may benefit from mini-abdominoplasty with a minimally invasive approach (MAMI). Discussion: The main objective of this study is to provide another surgical option for patients who would otherwise be indicated for abdominoplasty and also for those undergoing MILA or SCOLA who still require minor skin removal to enhance the surgical result. Based on our experience, mini-abdominoplasty with a minimally invasive approach (MAMI) has the potential to serve a larger number of patients, since most present degrees of skin laxity that, even after using technologies, require skin excision. In addition to complementing the results, it reduces complications, results in smaller scars, allows a better correction and visualization of the diastasis, avoids periumbilical scars, and offers faster recovery compared to abdominoplasty. Conclusions: MAMI surgery has proven to be a safe and reproducible approach for selected women who wish to restore feminine body features after pregnancy and achieve a quick recovery. It yields satisfactory esthetic results due to the minimized scar, preservation of the natural umbilical scar, and improved surgical correction of rectus diastasis. Full article