Surgical treatment of dysphagia lusoria caused by an aberrant right subclavian artery: a case report and literature review
Introduction
Dysphagia lusoria refers to dysphagia caused by an aberrant right subclavian artery (ARSA), a rare congenital anomaly of the aortic arch. This article presents a clinical case of symptomatic ARSA, accompanied by a comprehensive review of its anatomical, clinical, and therapeutic aspects.
Material and methods
We present the case of a 54-year-old female patient diagnosed with dysphagia lusoria due to ARSA, who underwent surgical intervention after clinical and imaging evaluations. The literature was reviewed through PubMed using the keywords: “aberrant right subclavian artery”, “dysphagia lusoria”, and “arteria lusoria”.
Results
The patient presented with progressive dysphagia, morning cough, fatigue, and weight loss. Imaging revealed ARSA compressing the esophagus, and the presence of a bicarotid trunk. Surgical correction involved right subclavian-to-carotid transposition, with complete resolution of symptoms. The literature review showed a modest grade of evidence regarding the management of patients with dysphagia lusoria, mostly including case reports and limited case series. Treatment is usually indicated in symptomatic patients, with options including open surgery or hybrid approaches.
Conclusions
ARSA can cause significant esophageal symptoms in adults, representing a diagnostic challenge. Appropriate imaging and timely surgical intervention are crucial in symptomatic cases. Awareness of aortic anatomical variants is essential for both diagnosis and treatment planning.
Hypotension in spinal anesthesia: predictive factors, prevention and volemia's non-invasive estimation methods
Introduction
Evaluation of patient volemia arriving at a medical service today still represents a challenge for specialists, especially in those who need surgical and anesthetic intervention. One of the most common systemic side effect to anesthesia is hypotension. Spinal Anesthesia-Induced Hypotension (SAIH) because of sympathetic blockade is most frequently cited as a complication of subarachnoid anesthesia, its severity being influenced by the patient's volemic state. The aim of this literature review is to analyze if „routine” preanesthetic preloading reduces the incidence of SAIH in patients undergoing spinal anesthesia, also to emphasize the efficacy of preanesthetic assessment of the IVC/Ao (Inferior Vena Cava/Abdominal Aorta) Index measured by ultrasound in determination of patients’ volemia.
Material and methods
Narrative literature review. Bibliographic search in the PubMed, NCBI and Google Academic databases, using the keywords: „hypotension inferior vena cava”, „hypotension spinal anesthesia”, „inferior vena cava/aorta diameter”, „preloading hypotension”, which were combined with each other. The final bibliography included 40 references.
Results
The principles of perianesthetic volemia management and prevention of arterial hypotension after the administration of the spinal block were detected in different groups of patients: the elderly, adult patients, anesthesiologic assistance in obstetrics and in various types of surgical interventions. Hypotension incidence data in patients with and without preanesthetic volume repletion were detected. At the same time, the effectiveness of the ultrasonographic assessment of IVC/Ao index in assessing patient's volume status was determined. The information was analyzed and synthesized in the article.
Conclusions
The effectiveness of routine preloading in reducing the incidence of arterial hypotension after spinal anesthesia did not prove its benefits in normovolemic patients, and ultrasonographic assessment of the IVC/Ao Index in assessing the volume status appears to be a simple, rapid, non-invasive, cost-effective volume assessment, which does not require the presence of a specialized imagist, being practically devoid of contraindications.
Early results of endovascular treatment using percutaneous vacuum-assisted thromboaspiration in acute lower limb ischemia
Introduction
Open balloon thrombectomy and embolectomy remain the preferred initial option in the management of acute lower limb ischemia (ALI), but various endovascular techniques have become accessible and are growing in popularity. The aim of the study was to assess our early experience with percutaneous vacuum-assisted thromboaspiration using the Penumbra/Indigo® system for non-traumatic ALI.
Material and methods
The study group comprised 13 patients with ALI who received treatment between September 2022 and June 2023; with 7 (53.8%) being males. The median age was 71 years (25%-75%IQR 62.5-77.5). ALI cases were classified according to the Rutherford scale: grade I – 2 (15.3%), grade IIA – 7 (53.8%), and grade IIB – 4 (30.7%). In 10 (76.9%) cases, ischemia was classified as "acute-on-chronic." The occluded native vascular segment, determined through preoperative computer tomography angiography (n=4; 30.7%), duplex scanning (n=5; 38.4%), or both examinations (n=4; 30.7%), were as follows: superficial femoral artery (n=7) and popliteal artery (n=2). In two patients, thrombosis of the below-knee femoropopliteal bypass with autogenous vein was identified, while two others presented with femoral artery stent thrombosis. An embolic etiology of ALI was observed in 4 (30.7%) cases, and thrombotic etiologyin 9 (69.2%) cases. Endovascular access was established via the ipsilateral common femoral artery (n=10), crossover (n=2), or brachial artery (n=1). Thromboaspiration was carried out using dedicated CAT6™ and CAT8™ catheters.
Results
The technical success rate of vacuum-assisted thromboaspiration was 92.3%. Subsequent angiography revealed accompanying occlusive-stenotic lesions in all instances, necessitating transluminal angioplasty, and in 8 (61.5%) patients, additional stenting was required. Catheter-directed thrombolysis was utilized as an adjunct in one patient. There were 2 (15.3%) instances of distal embolization, both addressed within the same surgical session. Survival and limb salvage rates at the 30th-day follow-up stood at 100%.
Conclusions
Utilizing the Penumbra/Indigo® system, percutaneous vacuum-assisted thromboaspiration appears to be a safe and effective minimally invasive technique for treating ALI. This method allows for the concurrent correction of coexisting chronic peripheral arterial lesions.