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Accidental cannulation of ascending lumbar vein 35 急重症影像 Accidental Cannulation of the Ascending Lumbar Vein via Femoral Access Yu-Chung Kung1, Chao-Hsien Lee1,2, Chien-Liang Wu1,2 A 35-year-old young male patient has a past medical history of AIDS with poor compliance. He discontinued HAART by himself for 1 year. He has progressive dyspnea with mild fever (body temperature of 37.9℃) for 3 days prior to emergency room. The chest tomography showed extensive bilateral lung consolidation, infiltrates and ground glass opacities. He took invasive ventilation due to acute respiratory distress syndrome. Pneumocystis Jiroveci pneumonia is of concern, therefore he took Co-trimoxazole 240 mg q6h plus Solu-Medrol 40 mg every 6 hours. The right femoral vein catheter should be removed because an exit site infection occurred. We placed left femoral venous catheter to administer medications and fluids. The abdominal film was performed because of difficulty inserting catheter to premeasured length, lack of blood return, difficulty with removal of the guidewire from the catheter, and easy flushing the device without resistance during inserting central venous catheter (CVC). The abdominal film revealed the catheter passed from the femoral vein into the ascending lumbar vein (ALV) (Fig. 1), therefore the catheter was immediately withdrawn before intravenous fluid was administration. Fig. 1 T h i s c o m p l i c a t i o n o c c u r s a l m o s t exclusively on the left has been attributed to the unique anatomy of the left ileofemoral vein (white arrow) compared to the right (black arrow) Identification of malpositioned catheters is critical to proper catheter function and prevention of complications. Due to the potential morbidity Received: June 24, 2014 Accepted for publication: July 22, 2014 From the 1Division of Pulmonary and Critical Care Medicine, Department of Internal Medicine MacKay Memorial Hospital, Taipei, Taiwan 2 MacKay Medicine, Nursing and Management College, Taipei, Taiwan Address reprint requests and correspondence: Dr. Chao-Hsien Lee Division of Pulmonary and Critical Care Medicine, MacKay Memorial Hospital 92 Section 2, Chungshan North Road, Taipei 10449, Taiwan (R.O.C.) Tel: (02)25433535 ext 2058 Fax: (02)25433535 ext 2059 E-mail: [email protected] 36 J Emerg Crit Care Med. Vol. 25, No. 1, 2014 and mortality involving CVC-associated neurologic events, this problem bears further scrutiny. The ALV arise from the right and left common iliac veins at the level of L5–S1 and join the common iliac veins to the lumbar veins as well as to the subcostal veins (Fig. 2)(1). The catheter may travel from the ALV into the intervertebral plexus, promoting rupture of the vessel wall allowing the catheter to lodge in the epidural space2. Catheter residing in the ALV may induce venous stasis, leading to possible neurologic sequelae, including perforation and further damage to the epidural or subarachnoid space, resulting in spinal cord injury, local mass effects, chemical meningitis, adhesion, seizure(2), shock(3), quadriplegia, paraplegia, and urinary retention (3). Physicians could identify catheter malposition, Fig. 2 including cognizance of insertion-related clues, radiographic assessment, and symptoms presenting during the catheter insertion (Table 1)(4). The prognosis is good when malposition is recognized and treated promptly. Even correctly positioned, CVCs can migrate with the dynamic forces. Catheter migration should be suspected in patients presenting with neurologic or sepsis like symptoms. Identification of malpositioned CVCs dwelling near or within the ALV is critical to patient safety. The malposition of CVCs may be diagnosed under CT scan of the abdomen with intravenous contrast(5), real-time fluoroscopy(3), or ultrasound guidance(6). Selection of an appropriate catheter insertion of lower extremity insertion site is important. Inadvertent catheterization of the ALV occurs pri- The anatomy of the ascending lumbar vein Accidental cannulation of ascending lumbar vein 37 Table 1 Signs and symptoms of catheters residing in or near the ascending lumbar vein Difficulty inserting catheter to premeasured length Lack of blood return Sepsis-like symptoms Parenteral nutrition fluid retrieved from CSF after lumbar puncture or markedly abnormal levels of glucose, protein, or lipids obtained from CSF sample Seizures or neurologic deficits Flaccid quadraplegia Urinary retention Radiographic Clues: • Left-sided CVC insertion that fails to cross the midline to enter the IVC and appears to overlay the midline • A bend, kink, or hump in the catheter at the L4–5 level on anterior- posterior view or a zigzag course in the paraspinal area, particularly on left-sided insertions and when the catheter was threaded to or beyond the level of L3 • A 360-degree curl in the catheter in the inguinal region with the tip slightly to the left of the lumbar spine or before advancement up the ALV • A marked posterior deviation of the catheter at L4–5 through S1 on lateral view (A catheter deviating posteriorly may be in the ALV, whereas a catheter presenting anterior to the spinal column on lateral x-ray is typically in the IVC.) • Vertebral and paravertebral venous plexuses filled by contrast injection into the ALV marily on the left, most likely because the angle of ALV entry to the right common iliac vein is greater on that side. A right-sided entrance will decrease the risk of catheter malposition. References 1. Carol WT. Inadvertent catheterization of the ascending lumbar vein. Neonatal Netw 2009;28:179-83. 2. Vidwans A, Neumann DP, Hussain N, et al. Diagnosis and management of spinal epidural space extravasation complicating percutaneous central venous line placement in a premature infant: case report and review of literature. Conn Med 2000;64:79-82. 3. Satoko T, Toshiya A, Yoichi H, et al. Complication of femoral vein CV port catheter malposition. Kitasato Med J 2013;43:74-8. 4. Janet P. Neurologic complications resulting from malpositioned or malfunctioning central venous catheters. Newborn and Infant Nursing Review 2006;6:212-24. 5. Ivan G, Rene MW, ChriStian S, et al. Accidental cannulation of the left ascending lumbar vein through femoral access: still often unrecognized. ASAIO Journal 2012;58:435-7. 6. Enrique C, James HH, Andrew WG, et al. Misplacement of a femoral venous catheter into the ascending lumbar vein repositioning using ultrasonographic guideline. Intensive Care Med 2001;27:240-2. 38 J Emerg Crit Care Med. Vol. 25, No. 1, 2014 股靜脈導管錯位至升腰靜脈 龔昱中1 李昭賢1,2 吳健樑1,2 股靜脈途徑被認為是一個快速和安全的靜脈通路。我們的報告描述一個股靜脈導管錯位至升腰靜脈 之病人,而此種錯位可發生嚴重的併發症如血管穿孔,損害硬膜外或蛛網膜下腔,脊髓損傷,化學性腦 膜炎,粘黏,癲癇,休克,四肢麻痺,截癱,和尿瀦留。臨床醫生應該注意到股靜脈導管可能錯位至升 腰靜脈,特別是在左側置入股靜脈導管時,可能是因為升腰靜進入到左側髂總靜脈的夾角較小。股靜脈 導管錯位至升腰靜脈除可根據導管置入時之情況及放射影像診斷,亦可使用靜脈造影、即時螢光透視、 超音波或腹部電腦斷層掃描確認。 關鍵詞: 升腰靜脈,中央靜脈導管置放 收件:103年6月24日 接受刊載:103年7月22日 台北馬偕紀念醫院內科部胸腔暨重症科 2馬偕醫護管理專科學校 通訊及抽印本索取:李昭賢醫師 104台北市中山北路二段92號 馬偕紀念醫院內科部胸腔暨重症科 電話:(02)25433535轉2058 傳真:(02)25433535轉2059 E-mail: [email protected] 1