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Transplant Renal Artery Stenosis (TRAS) is the leading vascular complication following kidney transplantation (KT), causing premature allograft loss and increased post-KT mortality. While risk factors for TRAS, such as prolonged cold ischemia time and delayed graft function, are well-documented in deceased donor-KT, the risk factors remain less clearly defined in living donor-KT. This matched case-control study, conducted at a leading national transplant center predominantly performing living donor-KT, evaluated risk factors and long-term outcomes of clinical TRAS (cTRAS). cTRAS cases diagnosed from January 2009 to December 2022 were matched with four control kidney transplant recipients (KTRs) in a study powered to assess whether ex-vivo arterial vascular reconstruction of multiple renal arteries (VR-MRA) increases the risk of cTRAS. Among 2,454 KTs, 28 KTRs (1.14%) were diagnosed with cTRAS around 3.62 ± 1.04 months post-KT, with renal allograft dysfunction (92.86%) as the most common presenting feature. Notably, 27 cTRAS cases were successfully treated with endovascular intervention, yielding favorable outcomes over a 6–180 months follow-up period. The study identified ex-vivo VR-MRA as an independent risk factor for cTRAS (P < 0.001). cTRAS cases receiving timely treatment exhibited long-term outcomes in graft and patient survival similar to control KTRs. Early screening and timely intervention for cTRAS post-KT may improve graft and patient outcomes. [ABSTRACT FROM AUTHOR]

Oncological hepatic surgery carries the possibility to perform vascular reconstructions for advanced tumours with vessel invasion since surgery often represents the only potentially curative approach for these tumours. An extended review was conducted in an attempt to understand and clarify the latest trends in hepatectomies with vascular resections. We searched bibliographic databases including PubMed, Scopus, references from bibliographies and Cochrane Library. Information and outcomes from worldwide clinical trials were collected from qualified institutions performing hepatectomies with vascular resection and reconstruction. Careful patient selection and thorough preoperative imaging remain crucial for correct and safe surgical planning. A literature analysis shows that vascular resections carry different indications in different diseases. Despite significant advances made in imaging techniques and technical skills, reports of hepatectomies with vascular resections are still associated with high postoperative morbidity and mortality. The trend of complex liver resection with vascular resection is constantly on the increase, but more profound knowledge as well as further trials are required. Recent technological developments in multiple fields could surely provide novel approaches and enhance a new era of digital imaging and intelligent hepatic surgery. [ABSTRACT FROM AUTHOR]

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Copyright of Chinese Journal of Clinical Healthcare is the property of Chinese Journal of Clinical Healthcare and its content may not be copied or emailed to multiple sites or posted to a listserv without the copyright holder's express written permission. However, users may print, download, or email articles for individual use. This abstract may be abridged. No warranty is given about the accuracy of the copy. Users should refer to the original published version of the material for the full abstract. (Copyright applies to all Abstracts.)

Transplant Renal Artery Stenosis (TRAS) is the leading vascular complication following kidney transplantation (KT), causing premature allograft loss and increased post-KT mortality. While risk factors for TRAS, such as prolonged cold ischemia time and delayed graft function, are well-documented in deceased donor-KT, the risk factors remain less clearly defined in living donor-KT. This matched case-control study, conducted at a leading national transplant center predominantly performing living donor-KT, evaluated risk factors and long-term outcomes of clinical TRAS (cTRAS). cTRAS cases diagnosed from January 2009 to December 2022 were matched with four control kidney transplant recipients (KTRs) in a study powered to assess whether ex-vivo arterial vascular reconstruction of multiple renal arteries (VR-MRA) increases the risk of cTRAS. Among 2,454 KTs, 28 KTRs (1.14%) were diagnosed with cTRAS around 3.62 ± 1.04 months post-KT, with renal allograft dysfunction (92.86%) as the most common presenting feature. Notably, 27 cTRAS cases were successfully treated with endovascular intervention, yielding favorable outcomes over a 6–180 months follow-up period. The study identified ex-vivo VR-MRA as an independent risk factor for cTRAS (P < 0.001). cTRAS cases receiving timely treatment exhibited long-term outcomes in graft and patient survival similar to control KTRs. Early screening and timely intervention for cTRAS post-KT may improve graft and patient outcomes.

Background Pseudoaneurysm formation sometimes complicates transplant nephrectomy. We report a case of bleeding from a pseudoaneurysm after transplantation nephrectomy that resulted in shock and emergency endovascular treatment. Case presentation A 56‐year‐old man underwent transplant nephrectomy 3 years and 9 months following transplantation for pyelonephritis‐related infection control. On postoperative day 7, he developed sudden pain in the lower abdomen and subsequently went into shock. A pseudoaneurysm at the anastomosis was detected, and urgent endovascular treatment was performed to stem the bleeding. Conclusion Vascular complications, including pseudoaneurysms, following transplant nephrectomy can be life‐threatening, and comprehensive awareness is needed in careful postoperative management.

Over the last few decades, the use of covered stent grafts became increasingly popular; as it plays a pivotal role in the management of various atherosclerotic diseases that are rising in both incidence and prevalence. Subsequently, vascular stent infections, although rare, are becoming a well-recognized complication with possibly devastating consequences, owing to the difficulties associated with its diagnosis and treatment. This has prompted significant interest in the condition regarding its pathophysiology, modifiable and non-modifiable risk factors, diagnostic and therapeutic approaches, and the possible implementation of prophylactic measures. We herein present a case of a patient with an infected aortoiliac stent 4 weeks after endovascular revision with atherectomy and additional stent insertion. The patient initially developed nonspecific symptoms and later developed a life-threatening hemorrhage, which was urgently controlled using a percutaneously inserted covered stent at the infected site. Definitive treatment using extraanatomical bypass implantation and an explantation of the infected stents was performed with excellent clinical response. [ABSTRACT FROM AUTHOR]

Median arcuate ligament syndrome (MALS) is an uncommon condition characterized by the compression of the celiac trunk by the median arcuate ligament. Due to the anatomical proximity to the foregut, MALS has significant implications in hepato-pancreato-biliary (HPB) surgery. It can pose complications in pancreatoduodenectomy and orthotopic liver transplantation, where the collateral arterial supply from the superior mesenteric artery is often disrupted. The estimated prevalence of MALS in HPB surgery is approximately 10%. Overall, there is consensus for a cautious approach to MALS when embarking on complex foregut surgery, with a low threshold for intraoperative median arcuate ligament release or hepatic artery reconstruction. The role of endovascular intervention in the management of MALS prior to HPB surgery continues to evolve, but more evidence is required to establish its efficacy. Recognizing the existing literature gap concerning optimal management in this population, we describe our tertiary center experience as a clinical algorithm to facilitate decision-making. Research question: What is the significance and management of median arcuate ligament syndrome in patients undergoing hepato-pancreato-biliary surgery? [ABSTRACT FROM AUTHOR]

Soft tissue sarcomas are heterogenous group of tumours and the most common site are lower limbs. Primary vascular leiomyosarcomas (LMS) are rare and mostly has venous origin. The diagnosis is made by typical radiological and pathological features. Over the years, treatment for extremity vascular sarcoma has changed from amputation to limb salvage surgery with same oncological outcomes. Here, we report a case study of a 45-year-old gentleman suffering from primary femoral vein leiomyosarcoma and managed successfully with resection of tumor and autologous venous reconstruction. Autologous venous grafts remain an excellent option for vascular reconstruction in resource-constrained setup of low- and middle-income countries. [ABSTRACT FROM AUTHOR]

Portal vein thrombosis is one of the common complications of liver cirrhosis. The incidence of portal vein thrombosis is increased with the progression of diseases. The incidence and progression of portal vein thrombosis are associated with multiple factors. The indications of anticoagulant therapy remain to be investigated. At present, portal vein thrombosis is no longer considered as a contraindication for liver transplantation. Nevertheless, complicated portal vein thrombosis will increase perioperative risk of liver transplantation. How to restore the blood flow of portal vein system is a challenge for surgical decision-making in clinical practice. Rational preoperative typing, surgical planning and portal vein reconstruction are the keys to ensure favorable long-term prognosis of liver transplant recipients. In this article, epidemiological status, risk factors, typing and identification of portal vein thrombosis, preoperative and intraoperative management of portal vein thrombosis in liver transplantation, and the impact of portal vein thrombosis on the outcomes of liver transplantation were reviewed, aiming to provide reference for perioperative management of portal vein thrombosis throughout liver transplantation. [ABSTRACT FROM AUTHOR]

Background: Allogeneic vessels (AV) are commonly used in pancreaticoduodenectomy (PD) with portal vein resection (PVR), but the epidemiological characteristics of portal vein thrombosis (PVT) are still unclear. Methods: The clinicopathological data of patients who underwent PD combined with PVR in our hospital from January 2011 to October 2022 were retrospectively collected. All patients underwent regular contrast-enhanced CT of the abdomen after surgery to identify PVT or recurrence and metastasis of the tumor. Results: A total of 878 patients received PD, of which 213 patients who also underwent PVR were included in the study. Among them are 16 (7.5%) tangential/patch reconstructions, 51 (23.9%) end-to-end anastomosis, and 146 (68.5%) AV reconstructions. The cumulative incidence of PVT in 1 month, 3 months, 6 months, 1 year, 2 years, and 3 years after surgery was 0.9%, 7.3%, 7.3%, 15.9%, 23.4%, and 27.6%, respectively. The results of logistic regression analysis showed that diabetes, operation procedure, and AV reconstruction were independent risk factors for PVT (P < 0.05). In the Cox analysis, PVT was clearly correlated with tumor recurrence (P = 0.038, hazard ratio (HR) = 1.553) and overall survival (P = 0.044, HR = 1.592) of pancreatic cancer patients. Conclusion: The prevalence of PVT is high in PD with PVR, particularly in patients undergoing AV reconstructions. The occurrence of PVT has a clear correlation with the patient's long-term prognosis. [ABSTRACT FROM AUTHOR]

Testicular germ cell tumors (TGCTs) are the leading cause of cancer-related death in males between the ages of 20 and 40. In the advanced stages, the combination of cisplatin-based chemotherapy and surgical excision of the remaining tumor can cure many of these patients. Vascular procedures may be required during retroperitoneal lymph node dissection (RPLND) in order to achieve the complete excision of all residual retroperitoneal masses. Careful assessment of pre-operative imaging and the identification of patients who could benefit from additional procedures are important for minimizing peri- and postoperative complications. We report on a case of a 27-year-old patient with non-seminomatous TGCT, who successfully underwent post-chemotherapy RPLND with additional infrarenal inferior vena cava (IVC) and complete abdominal aorta replacement using synthetic grafts.

An 86-year-old woman with initially asymptomatic severe right common carotid artery stenosis had frequent transient left hemiparesis 2 years after the initial diagnosis. Magnetic resonance angiography and three-dimensional computed tomography angiography demonstrated short-segment occlusion of the right carotid bifurcation with significant circumferential calcification, while magnetic resonance imaging demonstrated no ischemic lesions. No collateral blood flow through the anterior communicating artery and posterior communicating artery was observed. A bridging bypass from the distal common carotid artery to the proximal cervical internal carotid artery using a saphenous vein graft was made. There were no ischemic symptoms following the procedure. Bridging bypass using the short saphenous vein graft might be useful for short-segment common carotid artery occlusion. [ABSTRACT FROM AUTHOR]

Complete resection of large retroperitoneal tumors often requires vascular resection and reconstruction, which is frequently performed using prosthetic grafts. We report our experience with inferior vena cava reconstruction utilizing a large peritoneal interposition tube graft performed during en bloc resection of retroperitoneal sarcoma and multiorgan resection. This study aimed to increase the awareness of surgical oncologists about the venous reconstruction technique using a large autologous peritoneal graft. An elderly male presented to our cancer center with a history of persistent abdominal pain. The computed tomography (CT) scan reported a large retroperitoneal mass involving the right kidney and the inferior vena cava (IVC). En bloc tumor resection with right nephrectomy and resection of the IVC extending from just above the bifurcation up to the origin of the renal veins was done. IVC reconstruction was performed using autologous parietal peritoneum tube graft. Harvesting the peritoneum and fashioning a large peritoneal tube graft was challenging. Post-operatively, the patient recovered without any complications and was discharged on oral anticoagulants. The CT scan during the follow-up visit at 6 months revealed that the IVC graft was patent with a good flow. Autologous peritoneal grafts are a safe, valid, and readily available option for venous reconstruction. [ABSTRACT FROM AUTHOR]

Abstract Background Aggressive surgical resection in locally advanced hepatopancreatobiliary (HPB) malignancies is frequently advocated as the only potentially curative treatment. In recent years, advances in chemotherapy regimens and surgical techniques have led to improved oncologic outcomes and overall survival, by increasing the rates of radical (R0) resections. Vascular resections are increasingly reported to further increase disease clearance rates. Within this perspective, the issue of vascular reconstruction has raised growing interest, drawing particular attention to vascular substitutes and surgical techniques for reconstruction. Case presentation A case of extrahepatic cholangiocarcinoma with high clinical suspicion of vascular infiltration of the portal trunk at preoperative assessment is reported. An autologous interposition graft, harvested from diaphragmatic peritoneum, was chosen as a vascular substitute leading to successful portal trunk reconstruction and overcoming all possible drawbacks associated with cadaveric and artificial grafts reconstructions. Conclusion This solution was strategic to ensure complete oncologic clearance averting the risk of positive margins (R1) at final pathology.

Retroperitoneal sarcomas (RPSs) are locally aggressive tumors that can compromise major vessels of the retroperitoneum including the inferior vena cava, aorta, or main tributary vessels. Vascular involvement can be secondary to the tumor’s infiltrating growth pattern or primary vascular origin. Surgery is still the mainstay for curing this disease, and resection of RPSs may include major vascular resections to secure adequate oncologic results. Our improved knowledge in the tumor biology of RPSs, in conjunction with the growing surgical expertise in both sarcoma and vascular surgical techniques, has allowed for major vascular reconstructions within multi-visceral resections for RPSs with good perioperative results. This complex surgical approach may include the combined work of various surgical subspecialties.

Whole-organ re-engineering is the most challenging goal yet to be achieved in tissue engineering and regenerative medicine. One essential factor in any transplantable and functional tissue engineering is fabricating a perfusable vascular network with macro- and micro-sized blood vessels. Whole-organ development has become more practical with the use of the decellularized organ biomatrix (DOB) as it provides a native biochemical and structural framework for a particular organ. However, reconstructing vasculature and re-endothelialization in the DOB is a highly challenging task and has not been achieved for constructing a clinically transplantable vascularized organ with an efficient perfusable capability. Here, we critically and articulately emphasized factors that have been studied for the vascular reconstruction in the DOB. Furthermore, we highlighted the factors used for vasculature development studies in general and their application in whole-organ vascular reconstruction. We also analyzed in detail the strategies explored so far for vascular reconstruction and angiogenesis in the DOB for functional and perfusable vasculature development. Finally, we discussed some of the crucial factors that have been largely ignored in the vascular reconstruction of the DOB and the future directions that should be addressed systematically.

A mycotic aneurysm of the superior mesenteric artery caused by Enterococcus faecalis was successfully treated with aneurysmectomy and reconstruction with a bifurcated saphenous vein graft. A 49-year-old man with a history of type 2 diabetes mellitus and a recent left transmetatarsal amputation for osteomyelitis presented to the emergency department with severe abdominal pain, an unexplained 30-lb weight loss, and wound dehiscence. Computed tomography angiography showed an aneurysm of the superior mesenteric artery and a splenic abscess. The patient underwent splenectomy, surgical resection of the aneurysm, and reconstruction with a bifurcated saphenous vein. Follow-up revealed normal gastrointestinal function and graft patency.

This case series highlights that extra-adrenal and recurrent pheochromocytomas can require en bloc vascular resection to achieve negative margins. Through this series of cases performed in a multidisciplinary fashion, we aim to highlight the technical aspects of these cases that can add to their complexity. Vascular invasion alone should not preclude an otherwise feasible oncologic resection.

Introduction: Limb-salvage surgery has become the mainstream approaches for the treatment of sarcoma in the lower extremity. In cases where the sarcoma infiltrates the primary vessel, concurrent resection of the vessels and vascular reconstruction are required to ensure sufficient resection and preservation of limb function. The objective of this study is to assess the clinical outcomes of patients who underwent vascular reconstruction utilizing synthetic grafts for limb salvage, specifically in terms of postoperative complications and limb functional status. Methods: Between September 2016 and October 2021, 15 consecutive patients who underwent 15 arterial and 3 venous reconstruction procedures were included in this retrospective study. Incidence of postoperative morbidity, graft patency, rate of limb salvage, and overall survival of patients were analyzed. Results: The median follow-up was 12.5 months (range, 4.5-72.0). Graft thrombosis occurred in 5 patients (33.3%) and graft occlusion occurred in 3 patients (20.0%). The median overall survival was 28.0 months with the estimated 2-year and 5-year overall survival of 57.8% and 43.4% respectively. The 1-year and 2-year estimated patency rates of arterial reconstructions were 82.3% and 62.1%, respectively. None of the included patients with limb amputation were observed as a consequence of severe vascular complications, while two patients underwent amputation due to the repeat recurrence, resulting in a limb salvage rate of 86.7%. Conclusion: Our results show that the combination of vascular reconstruction and oncologic resection is a feasible option for preserving limbs in cases of musculoskeletal sarcoma with vessel involvement in the lower extremity. When vascular reconstruction surgery is performed, synthetic substitutes can be effectively used with low perioperative morbidity and an acceptable rate of limb salvage. [ABSTRACT FROM AUTHOR]

Objectives: We analyze successes and failures of pushing the boundaries in vascular pancreatic surgery to establish safety of conduit reconstructions. Background: Improved systemic control from chemotherapy in pancreatic cancer is increasing the demand for surgical solutions of extensive local vessel involvement, but conduit-specific data are scarce. Methods: We identified 63 implanted conduits (41% autologous vessels, 37% allografts, 18% PTFE) in 56 pancreatic resections of highly selected cancer patients between October 2013 and July 2020 from our prospectively maintained database. Assessed parameters were survival, perioperative complications, operative techniques (anatomic and extra-anatomic routes), and conduit patency. Results: For vascular reconstruction, 25 arterial and 38 venous conduits were utilized during 39 pancreatoduodenectomies, 14 distal pancreatectomies, and 3 total pancreatectomies. The median postoperative survival was 2 years. A Clavien-Dindo grade ≥IIIa complication was apparent in 50% of the patients with a median Comprehensive Complication Index of 29.6. The 90-day mortality in this highly selected cohort was 9%. Causes of mortality were conduit related in 3 patients, late postpancreatectomy hemorrhage in 1 patient, and early liver metastasis in 1 patient. Image-based patency rates of conduits were 66% and 45% at postoperative days 30 and 90, respectively. Conclusions: Our perioperative mortality of vascular pancreatic surgery with conduits in the arterial or venous system is 9%. Reconstructions are technically feasible with different anatomic and extra-anatomic strategies, while identifying predictors of early conduit occlusion remains challenging. Optimizing reconstructed arterial and venous hemodynamics in the context of pancreatic malignancy will enable long-term survival in more patients responsive to chemotherapies. [ABSTRACT FROM AUTHOR]

Heel ulcer is one of the severe complications of patients with diabetes mellitus, which poses a high risk for foot infection and amputation, especially in patients with peripheral arterial disease and neuropathy. Researchers have searched for new treatments for treating diabetic foot ulcers in recent years. In this case report, we demonstrated the treatment of large ischemic ulcers for the first time in a diabetic patient. The overall treatment goal of this patient was designed to improve blood supply to her diseased lower extremities and close the ulcer. This two-stage reconstruction approach resulted in an ulcer-free, stable, plantigrade foot at postoperative follow-up. [ABSTRACT FROM AUTHOR]

Testicular germ cell tumors (TGCTs) are the leading cause of cancer-related death in males between the ages of 20 and 40. In the advanced stages, the combination of cisplatin-based chemotherapy and surgical excision of the remaining tumor can cure many of these patients. Vascular procedures may be required during retroperitoneal lymph node dissection (RPLND) in order to achieve the complete excision of all residual retroperitoneal masses. Careful assessment of pre-operative imaging and the identification of patients who could benefit from additional procedures are important for minimizing peri- and postoperative complications. We report on a case of a 27-year-old patient with non-seminomatous TGCT, who successfully underwent post-chemotherapy RPLND with additional infrarenal inferior vena cava (IVC) and complete abdominal aorta replacement using synthetic grafts. [ABSTRACT FROM AUTHOR]

Objective: Limb salvage is an important concern following complete oncologic resection for extremity soft tissue sarcoma (STS). Vascular reconstruction is essential for limb salvage. The purpose of this study was to evaluate the outcomes of vascular reconstruction in patients with extremity STS. Methods: This is a retrospective, multi-center, case series of consecutive patients who underwent vascular reconstruction during extremity STS resection at 2 major centers in Korea. Demographics, reconstruction methods, type of conduit, surgical complications, graft patency, limb salvage rate, and patient survival were reviewed. Results: From March 2005 to December 2020, 43 patients underwent vascular reconstructions during STS resection. Among the patients, 22 (51.2%) received arterial only, and 21 (48.8%) received simultaneous arterial and venous reconstructions. For the types of conduits, autologous saphenous veins (56.2%), artificial grafts (26.3%), and cryopreserved allografts (15.8%) were used. During a median follow-up of 23.8 months (interquartile range; 7.7-54.5), the overall primary patency of the reconstructed vessels was significantly higher in arteries than in veins (82.5% vs 56.3% at 12 months, P <.001). According to the type of conduit, the primary patency rate of autogenous vein seemed higher in venous reconstruction, however, there was no statistical significance in both arterial and venous reconstruction. There was no significant difference in primary arterial patency rate (P =.132) or incidence of surgical complications including postoperative edema or wound problem whether or not simultaneous venous reconstruction was performed with arterial reconstruction. The overall limb salvage rate and patient survival were 97.4%, 95.1%, and 89.4% and 91.9%, 81.7%, and 65.4% at 12, 24, and 36 months, respectively. Conclusions: Patency rates were poorer in venous reconstruction than in arterial reconstruction. In terms of arterial patency and postoperative complication, the role of simultaneous arterial and venous reconstruction seems not essential, however, it needs to be evaluated in future studies. [ABSTRACT FROM AUTHOR]

Background: Aggressive surgical resection in locally advanced hepatopancreatobiliary (HPB) malignancies is frequently advocated as the only potentially curative treatment. In recent years, advances in chemotherapy regimens and surgical techniques have led to improved oncologic outcomes and overall survival, by increasing the rates of radical (R0) resections. Vascular resections are increasingly reported to further increase disease clearance rates. Within this perspective, the issue of vascular reconstruction has raised growing interest, drawing particular attention to vascular substitutes and surgical techniques for reconstruction. Case presentation: A case of extrahepatic cholangiocarcinoma with high clinical suspicion of vascular infiltration of the portal trunk at preoperative assessment is reported. An autologous interposition graft, harvested from diaphragmatic peritoneum, was chosen as a vascular substitute leading to successful portal trunk reconstruction and overcoming all possible drawbacks associated with cadaveric and artificial grafts reconstructions. Conclusion: This solution was strategic to ensure complete oncologic clearance averting the risk of positive margins (R1) at final pathology. [ABSTRACT FROM AUTHOR]

Retroperitoneal sarcomas (RPSs) are locally aggressive tumors that can compromise major vessels of the retroperitoneum including the inferior vena cava, aorta, or main tributary vessels. Vascular involvement can be secondary to the tumor's infiltrating growth pattern or primary vascular origin. Surgery is still the mainstay for curing this disease, and resection of RPSs may include major vascular resections to secure adequate oncologic results. Our improved knowledge in the tumor biology of RPSs, in conjunction with the growing surgical expertise in both sarcoma and vascular surgical techniques, has allowed for major vascular reconstructions within multi-visceral resections for RPSs with good perioperative results. This complex surgical approach may include the combined work of various surgical subspecialties. [ABSTRACT FROM AUTHOR]

Abstract Background Esophagectomy remains the standard treatment for esophageal cancer or esophagogastric junction cancer. The stomach, or the gastric conduit, is currently the most commonly used substitute for reconstruction instead of the jejunum or the colon. Preservation of the right gastric and the right gastroepiploic vessels is a vital step to maintain an adequate perfusion of the gastric conduit. Compromise of these vessels, especially the right gastroepiploic artery, might result in ischemia or necrosis of the conduit. Replacement of the gastric conduit with jejunal or colonic interposition is reported when a devastating accident occurs; however, the latter procedure requires a more extensive dissection and multiple anastomosis. Case presentation A 61-year-old male with a lower third esophageal squamous cell carcinoma (cT3N1 M0) who received neoadjuvant chemoradiation with a partial response. He underwent esophagectomy with a gastric conduit reconstruction. However, the right gastroepiploic artery was accidentally transected during harvesting the gastric conduit, and the complication was identified during the pull-up phase. An end-to-end primary anastomosis was performed by the plastic surgeon under microscopy, and perfusion of the conduit was evaluated by the ICG scope, which revealed adequate vascularization of the whole conduit. We continued the reconstruction with the revascularized gastric conduit according to the perfusion test result. Although the patient developed minor postoperative leakage of the esophagogastrostomy, it was controlled with conservative drainage and antibiotic administration. Computed tomography also demonstrated fully enhanced gastric conduit. The patient resumed oral intake smoothly later without complications and was discharged at postoperative day 43. Conclusion Although the incidence of vascular compromise during harvesting of the gastric conduit is rare, the risk of conduit ischemia is worrisome whenever it happens. Regarding to our presented case, with the prompt identification of the injury, expertized vascular reconstruction, and a practical intraoperative evaluation of the perfusion, a restored gastric conduit could be applied for reconstruction instead of converting to more complicated procedures.

Introduction: Popliteal artery aneurysm (PPA) belongs to the most commonly recognized peripheral artery aneurysms. The presence of PPA complications especially the presence of PPA related acute leg ischemia significantly increase the risk of leg amputation. In the study, the population of the elective and emergency patients with PPA treated in the Department of General Surgery, Vascular Surgery, Angiology and Phlebology of the Medical University of Silesia was analyzed. In the study protocol the primary and secondary patency as well as the predictive factors for the PAA revascularization success were evaluated in the patients with and without acute leg ischemia due to PAA. Material and methods: 97 patients with PAA were recruited into the study including 38 patients with acute leg ischemia (ALI). In both groups (elective and ALI) the surgical procedures related to the anatomy and extend of PAA were performed. In the elective group in 66.1% of the cases posterior (prosthesis or vein interposition) and in 33.9% medial approach (saphenous vein or prosthetic by pass implantation) was used. In the ALI 57% of the patients underwent PAA surgery from the posterior approach and in 41% the medial approach was used. In the ALI patients the following stages of the ischemia according to the SVS classification were recognized: stage I -- 21.2%, stage IIa -- 65.6%, stage IIb 13.3%. In 5 patients from this group preoperative thrombolytic treatment was performed. In the elective PAA group in 67% of the patients intermittent claudication was noticed and in 5% critical leg ischemia was recognized. The patients were followed 36 months and in the evaluation the patency of the reconstruction, amputation rate as well as potential factors influencing on the reconstruction success, including run off vessel status (assessed by run off score) were taken into account. Results: In the elective group in the 3 year follow up 2 amputations were performed. 3 patients from this group (5.1%) died. In the ALI group, 9 amputations (23.7%), including 4 early amputation -- 10.5% in the early postoperative period) as well as 3 deaths (7.9%) were noticed. The patency of the performed reconstructions was significantly better in the group of the elective reconstructions -- 3 years secondary patency in this group was 61% (vs 31,5% in the ALI patients. In both groups, the significantly better results were achieved when using autologous material (saphenous vein) with no result difference related to the type of performed procedure (interposition from posterior approach vs by pass procedure) in the early period as well as in the long term follow up. The poor run off status of the below the knee arteries had the significant impact on the long term patency in the elective group as well as on the early reconstruction thrombosis and leg amputation in the ALI group. In the patients with the higher advancement of the leg ischemia, both chronic and acute, the significantly worse patency rate in the late follow up was noticed. Among the other identified factors influencing on the long term results, the advanced age in the elective and thrombotic occlusion of the popliteal artery in the ALI group were noticed. Conclusions: PAA related acute leg ischemia significantly increases the risk of the early amputation rate. In the planning of the treatment procedure in the patients with PAA and ALI, the use of the autologous material as well as the proper run off vessel assessment and, if needed, run off vessel patency restoration should be taken into consideration. In contrary to ALI patients, in the elective PAA treatment the run off vessel score assessment, the stage of the leg ischemia as well as the presence of the possible popliteal artery occlusion have limited value in the direct prediction of the early revascularization results. Independently from the type of the reconstruction, in both groups, elective and ALI, the optimal results can be achieved when using the revascularization based on the own saphenous vein implementation. [ABSTRACT FROM AUTHOR]

The use of artificial or autologous materials for inferior vena cava (IVC) reconstruction is controversial. This study retrospectively explored the effects of different materials on perioperative outcomes. This study included 91 patients who underwent IVC reconstruction during liver autotransplantation between 2014 and 2020. A univariate analysis was performed to select variables affecting postoperative morbidity. The effect of IVC reconstruction materials on perioperative outcomes was tested with a multivariable generalized linear model. The effects on postoperative morbidity and operation time were further tested with the multivariate regression analysis based on the generalized estimating equation. Adjusted models were used in all analyses. A median operation time of 710 (633–790) min, a median blood loss of 2200 (1550–3000) mL, an incidence of 33% (30/91) for major morbidities and a median comprehensive complication index (CCI) of 0.0 (0.0–26.2) were observed, with no IVC reconstruction-related complications postoperatively or in the long term. The IVC reconstruction material had no significant effect on postoperative outcomes, while artificial materials significantly increased inpatient cost (191 ± 35 vs. 164 ± 36 k Yuan, p < 0.001). The multivariate regression revealed a significant shift in outcomes of operation time (p = 0.0368). Artificial grafts are recommended for IVC reconstruction if cost is not a factor. [ABSTRACT FROM AUTHOR]

Background: There is a paucity of literature describing the recovery trajectory after surgery for upper extremity ischemia. Using Patient-Reported Outcomes Measurement Information System (PROMIS) Physical Function (PF), Upper Extremity (UE), Pain Interference (PI), and Depression domains, we aimed to describe the postoperative recovery of such patients. Methods: We queried our PROMIS database for patients undergoing surgery for vasospastic or occlusive disease over a 4.5-year period. Inclusion criteria were preoperative, early (average 3 weeks) and late (average 6 months) postoperative PROMIS PF and/or UE, PI, and Depression scores. The change in PROMIS scores was calculated for each time point. Changes in PROMIS scores were compared with minimal clinically important difference estimates. Results: We identified 13 patients undergoing 13 surgical interventions that met inclusion criteria. More than one-half of our patients were men (n = 7 [54%]), and more than one-half of the surgeries (n = 7 [54%]) were for isolated occlusive diagnoses, with the remainder for vasospastic disease. At short-term postoperative follow-up, the change in PROMIS PF, UE, PI, and Depression scores was −6.34 (SD: 9.13), −6.81 (SD: 9.61), 3.16 (SD: 5.78), and −3.05 (SD: 8.37), respectively. At mid-term postoperative follow-up, the change in PROMIS PF, UE, PI, and Depression scores was 4.45 (SD: 10.33), 8.04 (SD: 13.84), −7.03 (SD: 7.06), and −12.27 (SD: 10.85), respectively. Conclusions: Our findings suggest patients undergoing surgical treatment for upper extremity ischemia experience a worsening of functional symptoms initially, as expected, followed by notable improvement. [ABSTRACT FROM AUTHOR]

Purpose: Extended resections in hepatopancreatobiliary (HPB) surgery frequently require vascular resection to obtain tumor clearance. The use of alloplastic grafts may increase postoperative morbidity due to septic or thrombotic complications. The use of suitable autologous venous interponates (internal jugular vein, great saphenous vein) is frequently associated with additional incisions. The aim of this study was to report on our experience with venous reconstruction using the introperative easily available parietal peritoneum, focusing on key technical aspects. Methods: All patients who underwent HPB resections with venous reconstruction using peritoneal patches at our department between January 2017 and November 2021 were included in this retrospective analysis with median follow-up of 2 months (IQR: 1–8 months). We focused on technical aspects of the procedure and evaluated vascular patency and perioperative morbidity. Results: Parietal peritoneum patches (PPPs) were applied for reconstruction of the inferior vena cava (IVC) (13 patients) and portal vein (PV) (4 patients) during major hepatic (n = 14) or pancreatic (n = 2) resections. There were no cases of postoperative bleeding due to anastomotic leakage. Following PV reconstruction, two patients showed postoperative vascular stenosis after severe pancreatitis with postoperative pancreatic fistula and bile leakage, respectively. In patients with reconstruction of the IVC, no relevant perioperative vascular complications occurred. Conclusions: The use of a peritoneal patch for reconstruction of the IVC in HPB surgery is a feasible, effective, and low-cost alternative to alloplastic, xenogenous, or venous grafts. The graft can be easily harvested and tailored to the required size. More evidence is still needed to confirm the safety of this procedure for the portal vein regarding long-term results. [ABSTRACT FROM AUTHOR]

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Pancreatic ductal adenocarcinoma (PDAC) is characterised by poor oncological outcome and is the seventh cause of cancer-related deaths worldwide. With the advances in surgical technology, oncological treatment, and critical care, extended pancreatic resections including vascular resections have become more frequently performed in specialised centres. Furthermore, the boundaries of resectability continue to be pushed in order to achieve a potentially curative approach in selected patients in combination with neoadjuvant and adjuvant treatment strategies. This review gives an overview on the current state of venous and arterial resections in PDAC surgery with particular attention given to the minimally invasive approach.

The right upper transversal hepatectomy (RUTH) is considered a complex technique of parenchymal-sparing hepatectomies. The intraoperative management of the right hepatic vein (RHV) is still controversial because it may cause obstruction of outflow in the remnant hepatic segment. The aim of this study is to present our experience of laparoscopic RUTH and the strategy of RHV resection and reconstruction in different settings. Five patients who underwent laparoscopic RUTH for liver tumor were enrolled retrospectively. Clinical and pathological features of the patients, peri-operative treatment, as well as short- and long-term outcomes were collected for analysis. Laparoscopic RUTH was successfully performed in all five patients. Two individuals underwent RUTH while preserving RHV. Among the remaining patients who underwent RUTH with RHV resection, one patient underwent RHV reconstruction but the others did not. Immediate or long-term venous related complications did not occurred in a median follow-up period of nine months. Laparoscopic RUTH surgery for tumors in the right upper region of the liver is safe and feasible. The strategic workflow we proposed for the resection and reconstruction of the RHV offers a reliable method for preserving liver parenchyma and reducing the risk of postoperative liver failure. [ABSTRACT FROM AUTHOR]

A 52-year-old woman presented with chest pain, shortness of breath and loss of sensation in her left limbs. Computed tomography angiography revealed an type A aortic dissection involving the brachiocephalic trunk and right common carotid artery. Endovascular therapy successfully managed the condition by reconstructing the artery and occluding the false lumen. [ABSTRACT FROM AUTHOR]

Objective To evaluate arterial covered stent used in the resection of complex carotid body tumor (CBT) and postoperative adverse events. Methods Twelve patients with CBT Shamblin type Ⅱ 3 cases and type Ⅲ 9 cases from 2018 to 2020 who underwent intraoperative combined arterial covered stent reconstruction (4 cases) or prereconstruction of internal carotid artery (8 cases) were included in this study. Statistics and analysis were done for general clinical data, intraoperative evaluation and postoperative adverse events. Results The operation was successful for all 12 cases. Average operative time was (160±55) min and blocking time was (25±6) min during carotid artery reconstruction. There was without need to block during internal carotid artery prereconstruction. Intraoperative bleeding was (342±101) mL. It was shown by follow-up one year later that there were 2 cases of temporary nerve injury and 1 case of postoperative covered stent obstruction. Both permanent nerve injury and transient ischemic attack were not found. Conclusions Stent graft used to reconstruct during operation or prereconstruction of internal carotid artery in CBT Shamblin type Ⅱ and type Ⅲ could reduce vascular injury, shorten blocking time of carotid artery, and lower adverse events. However, the treatment remained to be studied with large-sample controlled trial.

Objective. To propose the prognostication method for the complications occurrence after operative interventions, basing on application of multiparametric neuro-web clasterisation with subsequent elaboration of scale for their development risk stratification. Materials and methods. The indices of examination were analyzed in 411 patients, suffering obliterating atherosclerosis of main arteries of the lower extremities. The neuro-web clasterization, using a software raising NeuroXL Classifier, was conducted for more deep analysis of concomitant changes in the indices investigated for the risk prognostication optimization of the morbidity development in postoperative period. Results. The scale of the risk stratification for development of postoperative complications after interventions on the main arteries of the lower extremities proposed, takes into account multifactor character of clinic-anamnestic and laboratory-instrumental investigations. Taking into account the concomitant factors presence, which characterize the organs and systems state, they impact the choice of method of reconstructive operative intervention. Conclusion. Basing on data of the neuro-web clasterization, it is possible to prognosticate the complcations after operative intervention on the main arteries of the lower extremities. There were delineated four levels of the complications development risk in postoperative period: very high – 31-40 points, high – 21-30 points, moderate – 11-20 points, and low – 1-10 points.

Uretero-enteric anastomotic strictures (UES) after robot-assisted radical cystectomy (RARC) represent the main cause of post-operative renal dysfunction. The gold standard for treatment of UES is open uretero-ileal reimplantation (UIR), which is often a challenging and complex procedure associated with significant morbidity. We report a challenging case of long severe bilateral UES (5 cm on the left side, 3 cm on the right side) after RARC in a 55 years old male patient who was previously treated in another institution and who came to our attention with kidney dysfunction and bilateral ureteral stents from the previous two years. Difficult multiple ureteral stent placement and substitutions had been previously performed in another hospital, with resulting urinary leakage. An open surgical procedure via an anterior transperitoneal approach was performed at our hospital, which took 10 h to complete, given the massive intestinal and periureteral adhesions, which required very meticulous dissection. A vascular surgeon was called to repair an accidental rupture that had occurred during the dissection of the external left iliac artery, involved in the extensive periureteral inflammatory process. Excision of a segment of the external iliac artery was accomplished, and an interposition graft using a reversed saphenous vein was performed. Bilateral ureteroneocystostomy followed, which required, on the left side, the interposition of a Casati-Boari flap harvested from the neobladder, and on the right side a neobladder-psoas-hitching procedure with intramucosal direct ureteral reimplantation. The patient recovered well and is currently in good health, as determined at his recent 24-month follow-up visit. No signs of relapse of the strictures or other complications were detected. Bilateral ureteral reimplantation after robotic radical cystectomy is a complex procedure that should be restricted to high-volume centers, where multidisciplinary teams are available, including urologists, endourologists, and general and vascular surgeons.

BackgroundKidney allografts with multiple renal arteries (MRA) are not infrequent and have been historically associated with a higher risk of developing vascular and urologic complications. Reports of kidney transplantation using MRA allografts in the pediatric population remain scarce. The aim of this study was to evaluate if transplantation of allografts with MRA with a surgical intent of creating a single arterial inflow using vascular reconstruction techniques when required, and without the routine use of surgical drains or ureteral stents, is associated with an increased risk of complications when compared to single renal artery (SRA) grafts.MethodsWe retrospectively analyzed all pediatric renal transplant recipients performed by a single surgeon at our center between January 2015 and June 2022. Donor and recipient demographics, intraoperative data, and recipient outcomes were included. Recipients were divided into two groups based on SRA vs. MRA. Baseline variables were described using frequency distributions for categorical variables and means and standard errors for continuous variables. Comparisons of those distributions between the two groups were performed using standard chi-squared and t-tests. Time-to-event distributions were compared using the log-rank test.ResultsForty-nine pediatric transplant recipients were analyzed. Of these, 9 had donors with MRA (Group 1) and 40 had donors with SRA (Group 2). Native kidney and liver mobilization was performed in 44.4% (4/9) of Group 1 vs. 60.0% (24/40) of Group 2 cases (p = 0.39). There were no cases of delayed graft function or graft primary nonfunction. No surgical drainage or ureteral stents were used in any of the cases. One patient in Group 2 developed a distal ureter stricture. The geometric mean serum creatinine at 6- and 12-months posttransplant was 0.7 */ 1.2 and 0.9 */ 1.2 mg/dl in Group 1 and 0.7 */ 1.1 and 0.7 */ 1.1 mg/dl in Group 2. Two death-censored graft failures were observed in Group 2, with no significant difference observed between the two groups (p = 0.48).ConclusionsOur study demonstrates that pediatric renal transplantation with MRA grafts, using a surgical approach to achieve a single renal artery ostium, can be safely performed while achieving similar outcomes as SRA grafts and with a low complication rate.

Superior vena cava syndrome (SVCS) is an entity that has become more frequent due to the increasing use of indwelling central venous catheters. Surgical management is considered in patients with extensive venous thrombosis and when endovascular therapy is not feasible. The use of superficial femoral vein is an excellent technique for reconstruction of the brachiocephalic vein and superior vena cava (SVC) in cases with benign and malignant etiologies. We describe two cases of SVCS that were managed surgically at our institution with replacement of the SVC and brachiocephalic veins with a superficial femoral vein graft technique. [ABSTRACT FROM AUTHOR]

Background: Pancreatic cancer is the third leading cause of cancer-related death in the United States, with surgical resection being the only option for long-term survival. The ability to manage vascular involvement has expanded the pool of patients who are able to undergo resection with curative intent. However, not all vascular involvements can be detected preoperatively. This study aimed to investigate the patterns of vascular resection and methods of repair or reconstruction METHODS: This was a single-center retrospective review of adult patients undergoing pancreatectomy with vascular involvement at a tertiary care referral hospital between 2010 and 2022. The primary endpoint was graft thrombosis within 90 days., Results: A total of 147 patients were included in the study. Of note, 21.8% of patients were not suspected of having vascular involvement preoperatively. Moreover, 68.0% of patients required vascular reconstruction, whereas the remaining 32.0% of patients underwent repair (either primary repair or patch angioplasty). Most patients who underwent reconstruction underwent primary end-to-end anastomosis (63.0%), with 19 patients requiring autologous interposition grafts and 16 patients requiring CryoVein interposition grafts. Univariate analysis found no clinical or technical predictors of early or 90-day thrombosis, including graft choice. In addition, 30- and 90-day mortalities occurred in 1 and 7 patients, respectively., Conclusion: Pancreatectomy with vascular resection can be performed with low mortality in carefully selected patients. Unsuspected vascular involvement is relatively common (1 in 5). If autologous graft is not readily available, CryoVein is a safe alternative with similar perioperative outcomes., Competing Interests: Declaration of competing interest The authors declare no competing interests., (Copyright © 2024 The Authors. Published by Elsevier Inc. All rights reserved.)