Vascular and Endovascular Surgery最新文献

Objective: This study aims to identify and analyze implications of COVID-19 positivity on AVF occlusion, subsequent treatment patterns, and ESRD patient outcomes. Our aim is to provide a quantitative context for vascular access surgeons in order to optimize surgical decision making and minimize patient morbidity. Methods: The de-identified national TriNetX database was queried to extracted all adult patients who had a known AVF between January 1, 2020 and December 31, 2021. From this cohort individuals who also were diagnosed with COVID-19 prior to creation of their AVF were identified. Cohorts were propensity score matched according to age at AVF surgery, gender, ethnicity, diabetes mellitus, nicotine dependence, tobacco use, use of anticoagulant medications, and use of platelet aggregation inhibitors, hypertensive diseases, hyperlipidemia, and prothrombotic states. Results: After propensity score matching there were 5170 patients; 2585 patients in each group. The total patient population had 3023 (58.5%) males and 2147 (41.5%) females. The overall rate of thrombosis of AV fistulas was 300 (11.6%) in the cohort with COVID-19 and 256 (9.9%) in the control group (OR 1.199, CI 1.005-1.43, P =.0453). Open revisions of AVF with thrombectomy were significantly higher in the COVID-19 cohort compared to the non-COVID-19 group (1.5% vs .5% P = .0002, OR 3.199, CI 1.668-6.136). Regarding the time from AVF creation to intervention, the median days for open thrombectomy in COVID-19 patients was 72 vs 105 days in controls. For endovascular thrombectomy, the median was 175 vs 168 days for the COVID-19 and control cohorts respectively. Conclusion: As for this study, there were significant differences in rates of thrombosis and open revisions of recent created AVF, however endovascular interventions remained remarkably low. As noted in this study, the persistent prothrombotic state of patients with a history of COVID-19 may persist beyond the acute infectious period of the disease.

Background: Foam sclerotherapy is considered an acceptable method to treat great saphenous vein (GSV) insufficiency, promoting occlusion of its trunk and eradicating reflux. Various modalities and techniques have been described, varying form foam infusion through multiple short cannulae along the GSV to catheter-directed techniques in order to facilitate complete proximal GSV occlusion and improve technical and clinical success. Purpose: To present a modification of the sclerotherapy tehcnique where the presence of venous ulcers poses an extra challenge to the treatment of GSV treatment. Technique: We describe a technical proposal of single foam perfusion through a 11 cm 5F sheath placed at the knee level combined with simultaneous retrograde infusion below the knee. Perivenous tumescent segmental infiltration with cold normal saline at 4°C is applied initially to reduce the diameter in those GSV >6-7 mm. Conclusions: This combination avoids multiple vein cannulation in the GSV along the thigh as well as the need for antegrade infusion when GSV cannulation at the lower tibia is prohibited by a large ulcer area.

Background: Acute aortic dissection is the most common life-threatening disorder classically presenting with tearing chest pain radiating to the back yet can have deceiving clinical presentations.Case presentation: The patient was a 22-year-old pregnant woman (gravida 6, para 4, abortion1) at 26 weeks of gestation. She was a known case of Marfan syndrome who developed acute type A aortic dissection during pregnancy. Repair of aortic dissection was done through the Bentall procedure with a composite mechanical valved conduit while Fetal heart rate (FHR) was simultaneously monitored during surgery. Three months after surgical repair, the newborn was delivered via cesarean, and both mother and baby survived without any complications.Conclusions: In this case, we demonstrated that repair of type A aortic dissection can be done in pregnant women with preservation of fetus in the uterus through close cooperation among all members of a multi-disciplinary team.

Unlike other visceral artery aneurysms, pancreaticoduodenal artery aneurysms (PDAAs) should be treated regardless of their size. There are no reports on PDAA associated with celiac artery (CA) dissection. We, here, report the case of a patient with a ruptured PDAA with concomitant CA dissection. A 44-year-old Korean man presented to the emergency room of another hospital 29 days ago due to a sudden onset of abdominal pain. Contrast-enhanced abdominal computed tomography (CT) revealed a large right retroperitoneal hematoma and CA dissection. Subsequently, aortography revealed no specific bleeding focus. He underwent conservative treatment for 16 days, including a transfusion, and then was referred to us. His abdominal CT angiography revealed a diminishing retroperitoneal hematoma, a 7 mm × 8 mm PDAA at the anterior inferior pancreaticoduodenal artery aneurysm (PDA), and CA dissection. Selective celiac angiography revealed sluggish and diminished blood flow to the true lumen of the CA, and the hepatic, gastroduodenal, and splenic arteries were supplied by collaterals arising from the superior mesenteric artery (SMA). We performed elective coil embolization of the anterior PDA using the right femoral approach.We believe that postprocedural surveillance is required after CA dissection because of the potential risk of recurrent PDAA. Additionally, we suggest that hidden PDAA rupture should be considered for spontaneous retroperitoneal bleeding.

Background: Primary above-knee amputation (AKA) may at times be the only option for unsalvageable acute lower limb ischemia. However, occlusion of the femoral arteries may result in poor inflow and contribute to wound complications such as stump gangrene and sepsis. Previously attempted inflow revascularisation techniques include surgical bypass and percutaneous angioplasty and/or stenting.

Case presentation: We present a case of a 77-year-old lady with unsalvageable acute right lower limb ischemia secondary to cardioembolic occlusion of the common (CFA), superficial (SFA) and deep (PFA) femoral arteries. We performed a primary AKA with inflow revascularisation using a novel surgical technique involving endovascular retrograde embolectomy of the CFA, SFA and PFA via the SFA stump. The patient made an uneventful recovery without any wound complications. Detailed description of the procedure is followed by a discussion of the literature on inflow revascularisation in the treatment and prevention of stump ischemia.

Background: Disseminated Intravascular Coagulation (DIC) after Endo-Vascular Aneurysm Repair (EVAR) is a highly uncommon clinical entity. With only a few case-reports available, its management strategy still remains enigmatic.

Objectives: The purpose of this study was to retrieve, synthesize, and appraise all existing data for DIC after EVAR.

Materials and methods: All published articles regarding DIC post-EVAR were identified from 3 major databases and analyzed. Clinical parameters, predisposing factors, along with mortality and morbidly were assessed.

Results: The total number of publications included in the review was 15 describing 17 cases. DIC presented with a broad spectrum of clinical manifestations, while the time of diagnosis varied significantly. Endoleak was the main causative factor, with an incidence reaching 71%. The mortality of DIC after EVAR reached 29%, regardless of the therapeutic approach chosen. DIC was treated effectively in 47% of the patients (8/17), with better outcomes among patients who received conservative therapy or among those who were submitted to endovascular interventions.

Conclusions: DIC after EVAR, although rare, is a potentially lethal clinical condition which requires prompt diagnosis and urgent medical consideration. Treatment of endoleak may help in quick restoration of normal parameters.

High-flow priapism is an uncommon condition typically resulting from penile or perineal trauma, due to laceration of cavernosal artery. We present a case of 24-year-old male who presented with post-traumatic painless priapism. Ultrasound showed hematoma with arterio-cavernosal fistula. On CT Angiogram, the cavernosal artery was seen arising from accessory pudendal artery, which arose from inferior epigastric artery (IEA), branch of external iliac artery (EIA). Catheter angiogram of EIA showed fistulous communication at the base of the penis from a branch of IEA. Selective embolisation of the artery was done using 33% glue (n-butyl cyanoacrylate). Post embolisation, no residual filling of the fistula and partial detumescence of penis was noted. Transarterial embolisation is usually preferred as first line of management in high-flow fistulous priapisms.

Vascular closure devices (VCDs) are widely used to achieve rapid hemostasis after percutaneous intervention via the common femoral artery (CFA), with well-established efficacy and safety. Although VCD-related artery occlusion is rare, it can be critical. A 72-year-old female underwent endovascular therapy (EVT) for stent occlusion in the left superficial femoral artery through a 7-Fr guiding sheath from the right CFA. After the procedure, an acute right popliteal artery (POP-A) occlusion, associated with the EXOSEAL VCD plug, occurred. The plug material was successfully removed using a bidirectional approach. The migration plug was blocked to prevent distal vessel migration and pushed gently to close the antegrade system, using an over-the-wire balloon from the retrograde site. We named this the "Push balloon INto vessel and Close Embolus from Retrograde site" (PINCER) technique. Finally, the plug was successfully removed using biopsy forceps. Acute limb ischemia (ALI) caused by EXOSEAL is a rare condition. Removal of the emboli by EVT is clinically significant because it is minimally invasive. However, it is sometimes difficult to remove the embolus using only antegrade approach; thus, the bidirectional approach using the PINCER technique can be effective in these situations.

Objective: To compare the efficiency and safety of radiofrequency ablation (RFA) and saphenous vein stripping (SVS) for the treatment of recurrent lower extremity chronic superficial venous insufficiency (CSVI).

Methods: Patients who underwent SVS and RFA for recurrent lower extremity CSVI following RFA and patients who had 2-year follow-up results were enrolled into the study. Total, 37 patients who underwent a second RFA session with 2-year follow-up results were available. Then 37 patients were selected from 88 patients who underwent SVS for recurrent lower extremity CSVI to achieve a 1:1 ratio for comparison. Groups were compared based on preoperative properties, operative parameters, postoperative outcomes, complications and follow-up results.

Results: Duration of the procedure was 20.7 minutes in the RFA group and 30.7 minutes in the SVS group (P = .001). Postoperative pain at first hour, sixth hour and 24^th hour were significantly lower in patients who underwent RF (P = .001 for each parameter). Moreover, hospitalization time (18.1 hours vs 24.6 hours, P = .001) and time to return to normal daily activities (1.6 days and 2.5 days, P = .001) were significantly shorter in the RFA group. Success of the procedure did not statistically significant at first year follow-up (P = .304). However, success was significantly higher for the SVS group at second year follow-up (73% for RFA group and 91.9% for SVS group, P = .032).

Conclusion: We achieved significantly shorter procedure time, less postoperative hospitalization time, and a shorter time to return to daily activities with RFA. In contrast, the success rate of SVS was significantly higher at the second year follow-up, but not the first year follow-up in comparison with RFA.