Saphenous catheter

A 4-year-old spayed female Boston terrier was diagnosed with a suspected meningioma involving the optic chiasm and resulting in vision loss. A vascular access port (VAP) was placed in the left medial saphenous vein to facilitate frequent anesthetic episodes for radiation therapy. Five days after placement, the VAP was nonfunctional with the silicone catheter still intact. During VAP removal surgery, it was discovered that the silicone catheter had migrated. Intraoperative focal ultrasound could not identify the migrated catheter within the pelvic limb...

BACKGROUND: Perineural catheters placed parallel to the nerve course are reported to have lower migration rates than those placed perpendicular to it. However, catheter migration rates for a continuous adductor canal block (ACB) remain unknown. This study compared postoperative migration rates of proximal ACB catheters placed parallel and perpendicular to the saphenous nerve. METHODS: Seventy participants scheduled for unilateral primary total knee arthroplasty were randomly assigned for parallel or perpendicular placement of the ACB catheter...

A continuous adductor canal block (cACB) for pain control in total knee arthroplasty (TKA) is always performed by an anesthesiologist. A surgeon-performed cACB during surgery is somewhat questionable in terms of feasibility, reproducibility, and efficacy. This study was divided into two phases. In Phase 1 study, an experimental dissection of 16 cadaveric knees to expose the saphenous nerve and related muscles around the adductor canal was conducted. The extent of dye after injection via a catheter inserted into the adductor canal at the time of TKA was evaluated...

BACKGROUND: Pain management in TKA patients is challenged by a postoperative requirement for early ambulation along with the concurrent goal of reducing opioid consumption while simultaneously reducing the length of hospital stay. Peripheral nerve blocks (PNB) address these concerns to some degree, with femoral nerve and adductor canal blocks being the most-used regional nerve blocks for surgeries performed around the knee joint. PURPOSE: The authors hypothesized that placing a catheter between the muscles that make up the adductor canal during a standard surgical approach for a Total Knee Arthroplasty would provide equitable or superior access for a peripheral nerve block in the adductor canal...

OBJECTIVES: The catheter-directed foam sclerotherapy (FS) and the suggested perivenous tumescent application for great saphenous vein (GSV) diameter reduction are suggested to improve technical and clinical results; yet, their use is reported rather indiscriminately. Our aim is to introduce an algorithm categorising the use of technical modalities accompanying ultrasound-guided FS of the GSV and present the technical efficacy of FS through a 5 F × 11  cm sheath placed at the knee level...

Lower limb vascular access (LLVA) should be considered for patients in whom upper extremity access has been exhausted. The decisional process around vascular access (VA) site selection should incorporate a patient centered approach that aligns with End Stage Kidney Disease life-plan as recently described in proffered in 2019 Vascular Access Guidelines. The current surgical approaches to LLVA can be divided into two main groups: (A) autologous arteriovenous fistulas (AVFs); (B) synthetic arteriovenous grafts (AVGs)...

INTRODUCTION: An infected popliteal pseudoaneurysm has never been described in the pediatric population. Physicians need to be aware of its presentation and management, in order to diagnose and treat this medical condition adequately. METHODS: We describe the case of a 14-year-old boy who developed myositis and cellulitis centered at the popliteal fossa after playing basketball. A treatment of intravenous cefazolin was started. 5 days later, he experienced a knee pain flare-up, which turned out to be a popliteal pyomyositis with a pseudoaneurysm of the popliteal artery...

BACKGROUND: The current war in Ukraine is associated with frequent applications of multiple-launch rocket systems and cruise missiles as well as other various high-energy weapons to cause severe injuries in military personnel including abdomen wounds, vascular injury, and limb amputations as well as genitourinary trauma. The aim of this report is to demonstrate a case of successful penile salvage by restoring its function in a combat patient with gunshot genitourinary trauma in conditions of an interrupted supply of medical equipment...

BACKGROUND: Midline catheters are peripheral intravenous (IV) catheters in which the tip of the catheter does not reach the central circulation. In children, the use of midline catheters could lead to decreased complications from central venous catheters. To validate the safety of midline catheter use in children, we aimed to describe the complications and dwell time of pediatric midline catheters. The primary outcome was the incidence of catheter-related venous thromboembolism (VTE)...

BACKGROUND: A proper depth of percutaneous central venous catheter (PCVC) is very important to reduce procedural time and prevent various complications in very low birth weight (VLBW) infants who require minimal handling or have a sensitive skin. The objective of this study was to suggest a formula for faster and proper insertion of PCVC in VLBWIs to prevent unintended consequences of patients' conditions. METHODS: Prospective data of VLBW infants admitted from June 2015 to January 2018 who had PCVC inserted via the great saphenous vein within seven days after birth were analyzed...

BACKGROUND: Ankle arteriovenous fistulas are the rarest vascular access type among lower extremity fistulas for hemodialysis patients with end-stage renal disease. Here, we present a case of a tibial-saphenous fistula that remained open for a long time despite a recurrent anastomotic aneurysm. Case Presentation. A 43-year-old female patient who had been undergoing hemodialysis via a right femoral tunnel catheter for six months was referred for recurrent catheter infection and a 4 cm pulsatile mass in the anterior aspect of the ankle...

OBJECTIVE: Recently, ultrasound (US) has been increasingly used for epicutaneo-caval catheter (ECC) tip positioning; however, the selection of blood vessels for ECC still depends on the operator's subjective judgment. This study aimed to explore the value of US in decision-making regarding the great saphenous vein (GSV), tip navigation, and tip location of ECC. METHODS: Catheterization through the GSV of the lower extremity was selected. The running condition of the GSV was assessed by using US, and the angle between the GSV and the femoral vein was observed and measured...

BACKGROUND: The application of peripherally inserted central venous catheters (PICCs) in neonates has proven effective in avoiding repetitive insertions and excessive use of transfusion consumables. However, the frequent occurrence of PICC-associated complications deserves special attention, especially in extremely or very low birthweight (E/VLBW) infants, which in turn affects the quality of neonatal PICC practice. Therefore, we conducted a retrospective study of a 3-year clinical practice of neonatal PICCs in E/VLBW infants to understand the incidences of various catheter-related complications and their risk factors to help form an empirical summary and evidence-based guidance for the improvement of practice...

Anastomotic complications of the coronary arteries were observed in approximately 5% of patients undergoing Bentall-type surgery. Given the high surgical risk of reoperation, percutaneous coronary intervention could be a treatment for anastomotic complications but is challenging because of the complicated anatomy after Bentall-type surgery. Here, a 70-year-old man underwent a Bentall operation during which the left main coronary artery was accidentally injured. Therefore, coronary artery bypass using a saphenous vein graft was performed...

Understanding the hypothalamic factors regulating reproduction facilitates maximising the reproductive success of breeding programmes and in the management and conservation of threatened species, including African lions. To provide insight into the physiology and pathophysiology of the hypothalamic-pituitary-gonadal reproductive axis in lions, we studied the luteinising hormone (LH) and steroid hormone responses to gonadotropin-releasing hormone (GnRH) and its upstream regulator, kisspeptin. Six young (13.3±1...

Successful placement of intravenous catheters (IVC) is a basic and essential clinical skill for veterinary students. The purposes of this study were to determine the overall success rate for IVC placement in cats and dogs when final-year veterinary students are performing the procedure in a clinical setting, to determine if self-assessed experience level affects IVC placement success rates, and to identify factors affecting student success with this procedure. Final-year students were asked to complete an anonymous survey following each catheter placement attempt during their 3-week core emergency medicine rotation...

Blood flow is a major regulator of hemostasis and arterial thrombosis. The current view is that low and intermediate flows occur in intact healthy vessels, while high shear levels (>2,000 s-1) are reached in stenosed arteries, notably during thrombosis. To date, the shear rates occurring at the edge of a lesion in an otherwise healthy vessel are nevertheless unknown. The aim of this work was to measure the shear rates prevailing in wounds in a context relevant to hemostasis. Three models of vessel puncture and transection were developed and characterized for a study which was implemented in mice and humans...

OBJECTIVES: Timing and method of surgical reconstruction for non-sclerotic proximal coronary artery stenosis, occurring de novo or post-coronary artery transfer, are evolving. We have pursued a technique of anatomical reconstruction of ostial and short segment proximal coronary artery stenosis and atresia in children, using patch plasty or interposition vein graft. Here, we discuss the medium- to long-term outcomes. METHODS: Nine consecutive children undergoing 10 left main coronary artery reconstructions using autologous great saphenous vein patch (n = 4), autologous pericardium (n = 4), xenopericardium (n = 1) or great saphenous vein interposition graft (n = 1) were retrospectively analysed...

OBJECTIVE: The present study aims to investigate the therapeutic effect and safety of radiofrequency ablation (RFA) of the great saphenous vein in the treatment of varicose veins of the lower extremities. METHODS: Sixty-nine affected limbs of 45 patients were treated with RFA of the great saphenous vein. All patients underwent retrograde puncture of the distal great saphenous vein under the guidance of B-ultrasound. An RFA catheter was introduced 1 cm below the junction of the great saphenous vein and the femoral vein...

BACKGROUND: During coronavirus disease 2019 (COVID-19) pandemic, Helmet Continuous Positive Airway Pressure (h-CPAP) has been widely used to treat Acute Hypoxemic Respiratory Failure (AHRF). In COVID-19 patients undergoing h-CPAP a simple short peripheral catheter could be insufficient. According to the European Recommendations for Proper Indication and Use of Peripheral venous access consensus, a stable peripheral Vascular Access Device is indicated for intravenous treatment compatible with the peripheral route scheduled for more than 1 week...