Vascular and Endovascular Surgery最新文献

Purpose: We report the case of an acute type B dissection with high-risk features treated with multilayer stent.

Case report: A 50-year-old female patient presented to the emergency department with an acute type B aortic dissection. Conservative medical treatment did control blood pressure but did not alleviate her dissection symptoms. She was treated endovascularly with multilayer stents extensively covering the whole dissected area. HThe aortic arch side branches, visceral arteries and renal arteries remained patent after treatment. The recovery was uneventful, and she was discharged the day after the intervention. At 6- and 12-month follow-up, the patient remained asymptomatic, the true lumen volume increased and all side branches remained patent.

Conclusion: We present a case of the use of a multilayer stent for acute type B aortic dissection. This technique allows to treat the whole dissection with low risk of paraplegia or side branch occlusion. Long-term results of ongoing clinical studies should confirm the place of the multilayer stent as a treatment option for type B aortic dissection.

Introduction: Lower limb venous anomalies, including duplicated veins, are common and have significant impacts on the outcomes and efficacy of venous surgery. Digital subtraction angiography (DSA) guided venography, serving as the tertiary diagnostic option for venous disorders, offers valuable informations to clinical practitioners.

Patients and methods: A retrospective study was conducted on 195 patients with suspected venous disease, evaluating 259 limbs with venography imaging. Two experienced interventional vascularists evaluated the images to determine the incidence and characteristics of variances in the femoral, popliteal, great saphenous, and small saphenous veins. Moreover, blood samples were collected to assess the safety of the venography procedure by monitoring changes in renal function.

Result: Duplication variations were found in the lower limb veins, with the highest prevalence in the femoral vein (11.28%, 22/195), followed by the great saphenous vein (4.1%, 8/195), and the popliteal vein (1.54%, 3/195). No severe contrast agent allergies or postoperative complications were reported. No statistically significant differences were found in creatinine and urea levels pre- and post-operation for patients without duplication variations, those with duplication of the great saphenous, femoral, or popliteal vein (P < .05).

Conclusion: DSA-guided venography is effective in identifying venous variations in lower limb disease. DFV is the most common recurrent vein, while DPV is the least. Adequate preparation ensures safety, high spatial resolution, dynamic imaging, and low tissue interference.

An otherwise healthy 9-month-old infant was treated for a true aneurysm of the proximal brachial artery. The swelling was first noted at seven months of age. An ultrasound scan showed a 2 cm × 2 cm aneurysm of the left brachial artery at the level of the mid-upper arm. Whole-body magnetic resonance angiography (MRA) confirmed this was a true aneurysm of the brachial artery; there was good distal runoff and no other aneurysms elsewhere. Vasculitis screen was negative. Surgical excision of the aneurysm and reconstruction of the brachial artery was performed with a reversed cephalic vein graft. The patient made an uneventful recovery and was discharged home. We present an overview of the workup report and emphasise that a multi-disciplinary team approach is imperative for assessing and managing this rare condition.

Objectives: Endovascular aortic repair may be complicated by type 2 endoleaks. Intervention is generally recommended when the native sac continues to grow more than 5 mm. Transcaval coil embolization (TCE) of the native aneurysm sac is an emerging technique for repair of type 2 endoleaks. The objective of this study is to report an institutional review of our experience with this technique.

Methods: 11 patients underwent TCE during the study period. Data were gathered on demographics, size increase of native aneurysm sac, operative details, and outcomes. Technical success was defined as resolution of the endoleak during completion sac angiogram at end of the procedure. Clinical success was defined as no growth in the aneurysm sac at interval follow-up.

Results: Coils were the embolant of choice in all cases. Technical success was achieved in all cases except 1 resulting in a 91% technical success rate. Median follow-up was 25 months (range, 3-33). Of the ten patients that had technically successful embolization, 8 patients had repeat computed tomography (CT) scans which showed no further expansion of the native sac resulting in a 80% clinical success rate. No complications were noted immediately post-op or at interval follow-up.

Conclusions: This institutional retrospective review demonstrates that TCE is an effective and safe option for type 2 endoleaks after endovascular aortic repair (EVAR) in selected patients with favorable anatomy. Longer term follow-up, more patients, and comparison studies are needed to further define durability and efficacy.

Objective: The American College of Surgeons National Surgical Quality Improvement Program (NSQIP) is an important data source for observational studies. While there are guides to ensure appropriate study reporting, there has been no evaluation of NSQIP studies in vascular surgery. We sought to evaluate the adherence of vascular-surgery related NSQIP studies to best reporting practices.

Methods: In January 2022, we queried PubMed for all vascular surgery NSQIP studies. We used the REporting of studies Conducted using Observational Routinely-collected Health Data (RECORD) statement and the JAMA Surgery (JAMA-Surgery) checklist to assess reporting methodology. We also extracted the Journal Impact Factor (IF) of each article.

Results: One hundred and fifty-nine studies published between 2002 and 2022 were identified and analyzed. The median score on the RECORD statement was 6 out of 8. The most commonly missed RECORD statement items were describing any validation of codes and providing data cleaning information. The median score on the JAMA-Surgery checklist was 2 out of 7. The most commonly missed JAMA-Surgery checklist items were identifying competing risks, using flow charts to help visualize study populations, having a solid research question and hypothesis, identifying confounders, and discussing the implications of missing data. We found no difference in the reporting methodology of studies published in high vs low IF journals.

Conclusion: Vascular surgery studies using NSQIP data demonstrate poor adherence to research reporting standards. Critical areas for improvement include identifying competing risks, including a solid research question and hypothesis, and describing any validation of codes. Journals should consider requiring authors use reporting guides to ensure their articles have stringent reporting methodology.

Venous stenting could alleviate exercise intolerance associated with chronic inferior vena cava (IVC) obstruction. We describe a 36-year-old male patient with an unknown IVC-obstruction. The obstruction was discovered after a bi-iliac deep vein thrombosis (DVT). The thrombus was resolved using thrombolysis. In the chronic phase, the patient developed exercise intolerance without any leg-specific symptoms or signs. Venous stenting was performed to open the IVC-obstruction, 1 year after the acute DVT. His physical condition improved, but cardiac magnetic resonance imaging at rest did not reveal hemodynamical changes after stenting. The Short Form Health Survey (SF-36) physical and mental component summaries were increased from 40.3 to 46.1 and 42.2 to 53.7, respectively. In patients with iliocaval obstruction, improved venous flow without changes in resting hemodynamics can enhance exercise intolerance and quality of life, even in the absence of leg symptoms. Diagnostic tools performed only at rest may miss abnormalities.

Objectives: Colonic ischaemia is a rare but devastating complication of open aortic aneurysm repair and is associated with high morbidity and a mortality of up to 50%. The aim of this study was to determine the safety and effectiveness of using indocyanin green florescence (ICG) to interrogate colonic perfusion intra-operatively.

Design: Prospective observational study.

Methods: All elective open abdominal aneurysm repairs over a 6 month period underwent colonic perfusion interrogation with ICG according to a pre-defined protocol. Patient demographics and imaging findings were recorded prior to surgery. ICG was given just prior to laparotomy closure. Time to florescence was measured from the start of IV administration to surgeon defined maximal florescence of the sigmoid colon.

Results: Ten patients fulfilled the inclusion criteria. All patients were male with an average age of 69.7 years. Inferior mesenteric artery reimplantation was performed in 5 patients. Median colonic fluorescence time was 58 s. No complications related to ICG were identified. A single patient had clinical concern of colonic ischaemia and delayed perfusion (>3 min) on ICG; colorectal opinion advised not for immediate resection. At relook laparotomy, ischaemic colon at the area of demarcation was noted and a Hartmann's procedure was performed. No other patients had delayed perfusion and no further episodes of colonic ischaemia were noted. IMA reimplantation did not show statistical difference in colonic ICG time (P = .81, 95% CI -1.98 to 2.45). There was no statistical difference between operating times between the cohort and all repairs performed 6 months before the data collection (P = .59, 95% CI -.73 to 1.24).

Conclusion: In this pilot study ICG appears to be a safe and useful adjunct in objective assessment of colonic perfusion during open AAA repair. Further research is required to fully determine its role in this cohort of patients.

Objective: The presence of a significant left subclavian artery stenosis may occasionally lead to blood flow reversal through a LIMA-to-coronary artery bypass graft during left arm exertion; with "stealing" of myocardial blood supply. The aim of this study was to review our experience with carotid-subclavian bypass in patients with post-CABG coronary-subclavian steal syndrome.

Methods: This is a retrospective review of all patients who underwent carotid-subclavian bypass grafting for post-CABG coronary-subclavian steal syndrome at Mainz University Hospital between 2006 and 2015. Cases were identified in our institutional database, and data were retrieved from surgical records, imaging studies, and follow-up records.

Results: Nine patients (all males, mean age of 69.1 years) underwent surgical treatment for post-CABG coronary-subclavian steal syndrome. Medium interval between original CABG and carotid-subclavian bypass grafting was 86.1 months. There were no perioperative deaths, strokes or myocardial infarctions. At a mean follow-up period of 79.9 months, all patients remained asymptomatic and all carotid-subclavian bypass grafts remained patent. One patient required stenting of a common carotid artery stenosis proximal to the graft anastomosis site, and coronary artery stenting was required in four patients in regions other than those supplied by the patent LIMA graft.

Conclusion: Carotid-subclavian bypass surgery is a safe treatment option even in patients with multivessel disease and severe comorbidities and should be taken into consideration in patients who are deemed fit for surgery and those who would benefit from the excellent long-term patency rates.

Tuberous sclerosis complex is a neurocutaneous syndrome caused by an autosomal dominant genetic disorder. This condition can lead to the expression of many vascular anomalies especially, in the pediatric population. Likewise, it has been linked with aortic aneurysm development. We report a case of a 12-year-old boy who presented a 97 × 70 mm Crawford type IV thoracoabdominal aortic aneurysm. Satisfactory open surgical repair was performed with an 18-mm multibranched dacron tube graft. Clinical and imaging findings revealed a de novo tuberous sclerosis diagnosis. The patient was discharged uneventfully during a 1-month follow-up.

Objectives: The present study aimed to compare the effects of medical therapy (MT), systemic thrombolysis (ST), and pharmacomechanical thrombolysis (PMT) methods used in our clinic for the treatment of deep venous thrombosis (DVT) on symptom reduction, the incidence of post-thrombotic syndrome (PTS) development, and quality of life.

Methods: Data from160 patients diagnosed with acute DVT between January 2012 and May 2021 and treated and followed up in our clinic were retrospectively analyzed. The patients were divided into three groups according to treatment method. The patients who received MT treatment were defined as Group 1, anticoagulant treatment after ST as Group 2, and anticoagulant treatment after PMT as Group 3. The patients were called to the outpatient clinic, informed consent was obtained, EuroQol-5D-3 L (EQ-5D-3 L) scoring and Villalta scoring were performed, and anamnesis was taken.

Results: A total of 160 patients were included, with 71 (44.4%) patients in Group 1, 45 (28.1%) in Group 2, and 44 (27.5%) in Group 3. The mean age was 48.9 ± 14.9 years for Group 1, 42.2 ± 10.8 for Group 2, and 29.0 ± 7.2 for Group 3. When the time to return to normal life and the EQ-5D-3 L score index were compared, the differences between Groups 1 and 2 and between Groups 1 and 3 were statistically significant (P = .000 and P = .000, respectively). However, the differences between Groups 2 and 3 were statistically insignificant (P = .213 andp = .074, respectively). When Villalta scores and EQ Visual Analogue Scale (EQ-VAS) scores were compared between groups, the difference between all groups was statistically significant (P = .000).

Conclusions: The medical treatment alone was observed to be insufficient in terms of symptomatic improvement, development of PTS, quality of life, and long-term complications. When the ST and PMT groups were compared, it was determined that PMT treatment was more advantageous in terms of EQ-VAS score and PTS development, although there was no statistical difference regarding complications, such as return to normal life and long-term quality of life, the incidence of recurrent DVT development, and pulmonary thromboembolism incidence.