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Aim: Benign intrathoracic neurogenic tumors are neoplasms with low frequency prevalence ocurring predominantly in the posterior mediastinum. Video-assisted thoracoscopic surgery (VATS) enables minimally invasive surgical treatment in a number of intrathoracic diseases. The aim of this work was to compare the results of operations of neurogenic tumors of the mediastinum by VATS and open resection. Patients and methods: We retrospectively analyzed the set of 22 patients who underwent surgery between 2013–2018 for benign neurogenic tumors of the mediastinum. Results: The average age in the group was 57 years, 73% were women. 19 patients (86.4%) were asymptomatic and their tumors were accidental findings. Based on the histological examination 20 cases (90.9%) were neurinomas, 1 case (4.5%) was a paraganglion and 1 case (4.5.%) was a neurofibroma. There were no operative deaths in the group. Postoperative morbidity was 13.6%. VATS patients had significantly lower blood loss (42.5 ± 52.6 vs. 95 ± 48 mL; P = 0.033), shorter hospital stay (6.9 ± 1.5 vs. 11 ± 2.6 days; P = 0.008) and lower incidence of complications (6.25 vs. 33%; P = 0.001). There was no significant difference between the groups compared in the length of operations (78 ± 22.3 vs. 87 ± 72.2 min; P = 0.393) and tumor size (40 ± 19.9 vs. 61 ± 54.7 mm; P = 0.074). No tumor relapse occurred during the follow-up period (mean 34 months). Conclusion: VATS represents a safe and effective surgical method in the treatment of benign mediastinal tumors. Compared to open access, VATS achieved better results in lower blood loss, shorter hospital stay and lower frequency of complications. The Editorial Board declares that the manuscript met the ICMJE "uniform requirements" for biomedical papers [ABSTRACT FROM AUTHOR]

The authors declare they have no potential conflicts of interest concerning drugs, products, or services used in the study. The Editorial Board declares that the manu-script met the ICMJE "uniform requirements" for biomedical papers. [ABSTRACT FROM AUTHOR]

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Background: Conservative treatment of chronic pancreatitis has only a limited effect in most patients. Surgery offers very good long-term results, even in the early stages of the disease. Unfortunately, only a minority of patients undergo surgical treatment. The aim of this work was to summarise the current treatment options for patients with an inflammatory mass of the pancreatic head. Data from patients in our study demonstrates that the surgery is a safe method, and here we compare the perioperative and early postoperative outcomes of patients who underwent a pancreatoduodenectomy and duodenum-preserving pancreatic head resection for chronic pancreatitis., Methods: All patients who underwent a pancreaticoduodenectomy or a duodenum-preserving pancreatic head resection in our department between 2014 and 2022 were included in this study. Perioperative and early postoperative results were statistically analysed and compared., Results: Thirty-eight pancreaticoduodenectomies and 23 duodenum-preserving pancreatic head resections were performed. The overall mortality was 3%, whereas the in-hospital mortality after pancreaticoduodenectomy was 5%. The mortality after duodenum-preserving pancreatic head resection was 0%. No statistically significant differences in the hospital stay, blood loss, and serious morbidity were found in either surgery. Operative time was significantly shorter in the duodenum-preserving pancreatic head resection group., Conclusions: Both pancreatoduodenectomy and duodenum-preserving pancreatic head resection are safe treatment options. Duodenum-preserving pancreatic head resection showed a statistically significant superiority in the operative time compared to pancreaticoduodenectomy. Although other monitored parameters did not show a statistically significant difference, the high risk of complications after pancreaticoduodenectomy with a mortality of 5%; maintenance of the duodenum and upper loop of jejunum, and lower risk of metabolic dysfunctions after duodenum-preserving pancreatic head resection may favour duodenum-preserving pancreatic head resection in recommended diagnoses. Attending physicians should be more encouraged to use a multidisciplinary approach to assess the suitability of surgical treatment in patients with chronic pancreatitis., (© 2024. The Author(s).)

Background: Pancreaticoduodenectomy is associated with an incidence of postoperative complications of approximately 41%. One of the most severe complications is a postoperative pancreatic fistula. The exact cause of postoperative fistula development is still unknown, but it appears to be multifactorial. Proper perfusion of pancreatic remnant is essential for the healing of pancreaticojejunostomy. To date, there is no method to reliably evaluate the vascular supply of the remnant. One of the methods for the assessment of organ perfusion is the indocyanine green fluorescence. This study aims to determine if indocyanine green fluorescence is a reliable method to measure the perfusion of the post-resection pancreatic remnant. The secondary outcome is to determine if intraoperative evaluation of the vascular supply of the post-resection remnant may predict the increased risk of postoperative pancreatic fistula development., Methods: This study is designed as a prospective, observational study. All consecutive patients undergoing open or robotic pancreaticoduodenectomies at our department during the 1st May 2024-31st December 2026 period will be enrolled. The exclusion criteria are an allergy to indocyanine green and refusal by the patient. The adequacy of the vascular supply of the post-resection pancreatic remnant will be intraoperatively evaluated using a fluorescence detector. Patients will be divided into two groups: Those with high risk of pancreatic fistula development and those with low risk. The incidence of pancreatic fistulas in both groups is to be compared. Postoperative data including morbidity, mortality, hospital stay, intensive care unit stay and postoperative fistula development will be collected., Discussion: If an intraoperative assessment of the perfusion of post-resection pancreatic remnant using indocyanine green is proven to be a suitable method to estimate the increased risk of the pancreatic fistula, the list of the existing known risk factors could be expanded. In the most high-risk patients the modification of the surgical procedure could be considered., Trial Registration: Number: NCT06198400 ClinicalTrials.Gov. Date 08.01.2024., (© 2024. The Author(s).)

Introduction: Adjustable gastric banding (AGB) used to be a popular bariatric procedure. However, it fails in more than half of those operated on in the long term, becomes ineffective and must be removed. Therefore, the use of AGB has been in decline globally. Sleeve gastrectomy (SG) and Roux-en-Y gastric bypass (RYGB) are the most used bariatric revision surgeries when AGB is removed., Case Report: We present the case of a woman after AGB removal and conversion to SG who developed a stenosis of the sleeve. Therefore, a decision was made to convert to RYGB with a good effect., Conclusion: Revisional procedures are more technically challenging than primary procedures and have higher complication rates. The most performed revisional operations include SG and RYGB. Stenosis of the sleeve can occur after SG, with a negative impact on the patient's nutritional status and quality of life. This can be managed by endoscopic dilatation, and where this solution proves ineffective, RYGB can be indicated.

Introduction: Obesity is currently the most common multifactorial disease affecting almost all social strata of the population. Conservative therapy of obesity usually succeeds in reducing excess weight by an average of 10-15%. After surgical treatment of severe obesity (bariatric surgery), the average decrease in excess weight is several times greater and, in most cases, has a long-term positive effect on the overall clinical condition of the patients., Methods: Sleeve gastrectomy (SG) is the most used bariatric method of treating severe obesity today. The principle of SG is a vertical resection of a major portion of the gastric greater curvature. After the resection, the residual stomach has the shape of a sleeve with a remaining volume of about 120-150 ml. The effect of the method is both restrictive and hormonal, because after SG, the plasma level of active ghrelin decreases in the long term, among other things., Conclusion: Obesity is considered one of the most serious global health problems today. In 2018 a total of 696,191 bariatric procedures were performed worldwide. Sleeve gastrectomy was originally used in high-risk severely obese patients as the first stage of a duodenal switch (DS) or gastric bypass. Since 2003, this method has been used independently because for most of the patients, SG had a sufficient effect on weight reduction and improvement of comorbidities, and that is why since 2015, SG has become the most frequently used bariatric method.

Hemobilia is a rare condition defined as bleeding in the biliary tract. The clinical presentation is variable. The typical manifestation consists of jaundice, upper gastrointestinal bleeding, and right upper quadrant abdominal pain. This set of symptoms is known as "Quincke's triad." It is present in only 22%-35% of cases. Post-traumatic hemobilia is an extraordinarily rare condition occurring in only 6% of the patients with hemobilia. In general, it occurs in less than 0.2% of patients with liver trauma. A delay in the development of bleeding after liver trauma is frequent. Early diagnosis is essential because massive bleeding into the biliary tract is a potentially life-threatening condition. We present a case of a patient with massive hemobilia developed 12 days after blunt abdominal trauma. Computed tomography angiography showed two pseudoaneurysms in hepatic segments V and VIII with contrast medium extravasation. We successfully performed digital subtraction angiography with selective transcatheter arterial embolization of the leaking segment VIII pseudoaneurysm. Embolization of the pseudoaneurysm in segment V was technically impracticable. Our article provides a review of the published literature focussing on the prevalence, diagnostics, and treatment of post-traumatic hemobilia., (© The Association of Military Surgeons of the United States 2022. All rights reserved. For permissions, please e-mail: journals.permissions@oup.com.)

Objectives: The vascular supply to the neck and body of the pancreas is highly variable. The dorsal pancreatic artery is the dominant artery feeding this area. The aim of this study was to describe the vascular supply of postresection pancreatic remnants after pancreaticoduodenectomy. Patients with hazardous anatomical arrangement may be at a higher risk of postresection remnant ischemia and postoperative pancreatic fistula development., Methods: The modified Whipple procedure was performed on 20 cadaveric donors. The macroscopic anatomical supply of the postresection pancreatic remnant of each donor was evaluated., Results: The arterial supply of the postresection remnant was highly variable. In 30% of cases (6/20), the dorsal pancreatic artery was cut during the pancreatoduodenectomy or it was missing. In these cases, the area of the pancreaticojejunostomy construction was fed only through anastomoses between the transverse pancreatic artery and the pancreatic branches of the splenic artery., Conclusions: In 30% of cases, the arterial supply of the postresection pancreatic remnant was dependent on inconstant intraparenchymal arterial anastomoses. These patients may be at a higher risk of postoperative pancreatic fistula development., Competing Interests: The authors have no conflicts of interest to disclose., (Copyright © 2023 the Author(s). Published by Wolters Kluwer Health, Inc.)

The incidence of explosions in large agglomerations is high even during peacetime and continues rising. Blast syndrome injuries are complex, with shock wave causing severe injuries of multiple organ systems. In situations with large numbers of injured persons, effective triage allows an early diagnosis and treatment of the highest number of victims. Treatment is challenging, and potentially conflicting therapeutic goals may alternate. This review provides an overview of the pathophysiology of blast injuries, current diagnostic algorithms and therapeutic procedures.

Introduction: Schwannomas are a group of well differentiated benign tumors originating from the Schwann cells of the peripheral nervous system. Their localization in the pelvis is very rare. Schwannomas with expansive growth can cause wide neurologic symptoms or oppression of pelvic organs., Case Report: The authors present a case study of a 60-year-old woman with a large, symptomatic deep pelvic schwannoma. The patient underwent robotic-assisted surgery resulting in complete tumor extirpation. The patient's postoperative course was uneventful with a total of two hospitalization days. The diagnosis of a schwannoma was confirmed by histopathologic analysis. At 11-month follow-up surveillance the patient did not present any neurological deficit or other symptoms., Conclusion: Robotic-assisted surgery allows safe and effective surgical treatment in difficult-to-access anatomical areas. Magnetic resonance imaging is required for preoperative imaging of neurogenic tumors. Histological verification is not recommended in cases where evidence of a schwannoma is found. Multidisciplinary cooperation of a dedicated team experienced in minimally invasive pelvic surgery is necessary.

Introduction: Surgical treatment is associated with an unwanted response of the organism to the so-called surgical trauma. This response is called surgical stress. Ischaemia-reperfusion injury is one of essential causes of tissue damage. It comprises functional and structural changes in tissue that occur after the restoration of circulation, after an episode of ischaemia. Necrosis of irreversibly changed cells and endothelial and mitochondrial-induced tissue swelling occur., Methods: Physiology, pathophysiology of endothelial glycocalyx: Endothelial glycocalyx is a 0.2 to 5 micrometres thin heteropolysaccharide layer that covers the endothelium on its intraluminal side. Backbone molecules of the glycocalyx include proteoglycans, glycoproteins, and glycosaminoglycans. Damage of the endothelial glycocalyx was described in trauma patients, in patients with septic shock, in ischemia and reperfusion injury, and during extensive surgical procedures. Approaches to prevent endothelial glycocalyx damage: Remote ischemic preconditioning was tested as a method of ischemia and reperfusion injury prevention during and after surgery. Nevertheless, the expected effect was not confirmed in performed meta-analyses. Endothelial glycocalyx damage can be prevented pharmacologically with a broad spectrum of substances, such as antithrombin III, doxycycline, hydrocortisone, etanercept, or nitric oxide donors. Hydrogen inhalation or albumin affects glycocalyx positively. Sulodexide provides a positive effect on the protection and reparation of endothelial glycocalyx. This proteoglycan with antithrombotic, fibrinolytic, hypofibrinogenemic, and lipolytic function is used for the treatment of venous diseases, ischaemic heart disease, and peripheral arterial disease. A positive effect of sulodexide on renal dysfunction was documented in a model of ischaemia and reperfusion injury. Equally, a positive effect of sulodexide was described on endothelium repair after its mechanical damage., Conclusion: Further research needs to be performed to evaluate the effect of endothelium-protectives on glycocalyx damage prevention and repair in ischaemia and reperfusion models involving large laboratory animals or in clinical trials in patients undergoing surgical revascularisation procedures.

Introduction: Peripheral vascular injuries occur in 1-3% of all traumas in civilian settings. The management of these injuries is often based on experience derived from war medicine where these injuries are more common. The goal of this article is to summarize basic guidelines for the diagnosis and treatment of vascular injuries., Methods: Western Trauma Association (WTA) and Eastern Association for the Surgery of Trauma (EAST) both have their own guidelines for vascular trauma management., Results: Vascular injuries occur both in penetrating and blunt traumas. Complete vessel disruption occurs more frequently in penetrating traumas. In the case of blunt trauma, intimal defects are more common, resulting in dissection, false aneurysm, or intramural hematoma. The limb is mostly endangered due to ischemia, reperfusion injury and the compartment syndrome. Prompt diagnosis and treatment are paramount. Vascular trauma management is part of the ATLS protocol and life-over-limb principle. The primary goal is to stop the massive external bleeding. Clinical examination and CT angiography are the most helpful for the diagnosis. Surgical revision is indicated when hard signs are present. This can be a damage control surgery with the primary goal to stop the bleeding as quickly as possible. A shunt can be used for temporary reperfusion of the limb. Definitive treatment can take the form of a simple suture, patches or graft interposition; both prosthetic and autologous grafts are used. Sufficient debridement and fasciotomy are important steps in the therapy. In some cases, endovascular treatment can be used., Conclusion: Over the last century, the treatment strategy changed dramatically. Data from recent military conflicts show a decrease in amputation rates, and limb salvage has become a standard.

Purpose: A preoperative estimate of the risk of malignancy for intraductal papillary mucinous neoplasms (IPMN) is important. The present study carries out an external validation of the Shin score in a European multicenter cohort., Methods: An observational multicenter European study from 2010 to 2015. All consecutive patients undergoing surgery for IPMN at 35 hospitals with histological-confirmed IPMN were included., Results: A total of 567 patients were included. The score was significantly associated with the presence of malignancy (p < 0.001). In all, 64% of the patients with benign IPMN had a Shin score < 3 and 57% of those with a diagnosis of malignancy had a score ≥ 3. The relative risk (RR) with a Shin score of 3 was 1.37 (95% CI: 1.07-1.77), with a sensitivity of 57.1% and specificity of 64.4%., Conclusion: Patients with a Shin score ≤ 1 should undergo surveillance, while patients with a score ≥ 4 should undergo surgery. Treatment of patients with Shin scores of 2 or 3 should be individualized because these scores cannot accurately predict malignancy of IPMNs. This score should not be the only criterion and should be applied in accordance with agreed clinical guidelines., (© 2022. The Author(s), under exclusive licence to Springer-Verlag GmbH Germany, part of Springer Nature.)

Background: Postoperative pancreatic fistula is one of the most dreaded complications following pancreatic resections with Grade C the most severe. Several possible types of surgical intervention are available but to date, none of them have clearly shown superiority. This study aims to compare different surgical approaches., Methods: A retrospective analysis of patients who underwent revision surgery for postoperative pancreatic fistula between 2008 and 2020 was performed. Three surgical approaches were compared: open drainage; a disconnection of the pancreaticojejunostomy; and salvage total pancreatectomy. The data of nine monitored parameters were collected. Selected parameters were statistically analyzed and compared., Results: A total of 54 patients were included. Eighteen patients underwent open drainage, 28 had disconnections of the pancreaticojejunostomy and eight had salvage total pancreatectomy. Statistically significant differences were observed in the time of Intensive Care Unit stay, the number of surgical interventions, 90-day mortality, the number of administered blood transfers and treatment costs. Open drainage showed to be superior in each category. The difference in long-term survival also slightly favored simple drainage., Conclusion: Open drainage procedure showed to be superior to other types of interventions in most of the monitored parameters. Disconnection of the pancreaticojejunostomy and a salvage total pancreatectomy had similar results, which correlated with the surgical burden of these interventions., Competing Interests: The authors declare that the research was conducted in the absence of any commercial or financial relationships that could be construed as a potential conflict of interest., (© 2022 Záruba, Rousek, Kočišová, Havlová, Ryska and Pohnán.)

Background/objectives: The dorsal pancreatic artery is the main artery of the body and tail of the pancreas. Its origin and branching is highly variable. The aim of this study was to perform a meta-analysis to generate pooled prevalence data on the presence and origin of the dorsal pancreatic artery. Clinically important aspects of the dorsal pancreatic artery were summarised during the literature review., Methods: Major medical databases were searched. Data on the presence and point of origin of the dorsal pancreatic artery were extracted and quantitatively synthesised. The obtained data of anatomical based studies and computed tomography based studies were statistically analysed., Results: In total, 30 studies, comprising 2322 anatomical and computed tomography based cases were included. The dorsal pancreatic artery was present in 95.8% of cases. It originated from the splenic artery in 37.6% of cases, common hepatic artery in 18.3% of cases, coeliac trunk in 11.9% of cases and the superior mesenteric artery in 23.9% of cases. Other rare origins were present in 2.77% of cases. Multiple dorsal pancreatic arteries were found in 1,7% of cases. There was no significant difference in the presence or origin of the dorsal pancreatic artery between anatomical and computed tomography based studies., Conclusion: The dorsal pancreatic artery is present in the vast majority of cases. Its origin and branching are highly variable. Multiplicity of the dorsal pancreatic artery is infrequent., Competing Interests: Declaration of competing interest The authors declare that they have no competing interests., (Copyright © 2022 The Authors. Published by Elsevier B.V. All rights reserved.)

Introduction: Acute appendicitis (AA) is the most common abdominal emergency. This article aims to document the impact of the ongoing COVID-19 pandemic on timely diagnosis of AA, duration of symptoms before examination in a medical institution, levels of laboratory inflammatory markers, and the length of hospital stay. Collected data were compared with current world literature., Method: Two datasets were created, comprising patients with the histological diagnosis of AA determined from March 1 to June 30, 2019 (before of the onset of the COVID-19 pandemic) and in the same period of the spring pandemic of COVID-19 in 2020. The following information was obtained from patient medical records: Demographic data, information on symptom duration before AA diagnosis, information on laboratory inflammatory marker levels, the used surgical method, antibiotic treatment, histopathological findings, and the length of hospital stay. These data were processed using descriptive statistics methods and the two created datasets were compared with the use of statistical methods (an unpaired t-test and Welchs t-test)., Results: Thirty seven patients (26 men and 11 women) with the median age of 41 years were operated on for acute appendicitis at the Department of Surgery, Military University Hospital in Prague from March 1 to June 30, 2019. Thirty four patients (19 men and 15 women) with the median age of 42 years were operated on in the same period of 2020. No significant differences were found between these two compared datasets in terms of symptom duration, laboratory inflammatory marker levels or the length of hospital stay. The distributions of histopathological findings and used antibiotic treatments were also similar., Conclusion: In our study, we were unable to demonstrate any statistically significant differences between the datasets of patients operated on before and after the onset of the COVID-19 pandemic.

Introduction: The development of an ideal dressing for wound healing remains an unresolved issue. Thanks to the development of electrospinning technology, polymers in the form of nanofibers have come to the forefront of research interest. A modern and very promising dressing material is a &#8220;nonwoven&#8221; based on nanofibers of the synthetic polymer polylactide (PLA). The aim of this work was to assess the regenerative abilities of PLA in a standardized wound in a porcine model and compare our results to the literature data., Methods: We applied PLA-based nanofiber dressings to the standardized wounds created in the porcine model. On the third, tenth, seventeenth and twenty-fourth days after the formation of the defect, we changed the wound dressing while taking a tissue sample for histopathological examination. We continuously monitored serum levels of acute phase proteins., Results: PLA stimulated an inflammatory response. From the third day, the thickness of the fibrin layer with granulocytes increased. It reached its maximum values on the tenth day (mean 340 &#956;m); at the same time the level of serum amyloid A, as a marker of inflammation, culminated. The individual phases of healing intertwined. The highest thickness values of the granulation tissue with cellular connective tissue (diameter 8463 &#956;m) were reached on the seventeenth day. On the twenty-fourth day, the defects were healed macroscopically with a mean reepithelialization layer of 9913 &#956;m., Conclusion: PLA-based nanofiber dressing potentiates the inflammatory, proliferative and reepithelialization phases of healing. Its structure perfectly mimics the extracellular matrix and serves as a 3D network for the growth and interaction of cellular elements. In addition to biocompatibility, PLA has a unique ability of two-phase biodegradation. It is a promising material for industrial production of dressing materials. Most of the available studies were performed in vitro. In vivo comparative studies approximating the use of PLA to daily practice are still missing.

Introduction: Ischemic complications are a notable cause of morbidity in patients after pancreatic head resections. Stenosis of celiac axis in patients undergoing pancreatoduodenectomy requires further perioperative attention., Case Report: We present a patient with pancreatic head malignancy scheduled for Whipple procedure in the setting of hemodynamically significant celiac axis stenosis. Despite release of the artery from compression by median arcuate ligament, elevation of liver function tests on the first postoperative day was noted. Endovascular stenting was performed on the same day with significant radiological improvement and subsequent normalization of laboratory values. The patient had no further postoperative complications., Conclusion: Fast recognition of ischemic complications after pancreatic head resection is crucial. Even postoperatively, endovascular intervention might be a feasible treatment modality of celiac axis stenosis in selected patients who undergo pancreatoduodenectomy.

Introduction: The Czech Republic belongs to countries in which colorectal cancer significantly contributes to the overall oncological burden. Radical removal of tumor-affected tissues plays a key role in the multimodal therapy of rectal cancer. In the first decade of the third millennium the mini-invasive approach in rectal cancer surgery gradually expanded to include robotic-assisted surgeries. The aim of this paper is to present the results of a non-randomized study with prospectively collected data from robotically assisted rectal cancer surgeries., Methods: 204 patients with rectal cancer (.

Negative pressure wound therapy (NPWT) has been used in clinical practice for 25 years. Worldwide, it has been used to treat more than 10 million wounds. The repertoire of NPWT procedures is still growing. This originally simple procedure entails a number of pitfalls and limits, and full utilisation of the micro-deformation potential of NPWT depends on many key details. We present the pathophysiology, effects and forms of NPWT use including our own experience, tips and a proposal for the use of NPWT during the COVID-19 pandemic.