ObjectiveTo explore the role of arteriovenous axillary loop graft (AVALG) on chest for establishing hemodialysis access in patients with chronic renal failure. MethodsA retrospective analysis was made on the clinical data of 12 patients with chronic renal failure who underwent an AVALG on chest for hemodialysis access between December 2010 and May 2014. There were 2 males and 10 females with an average age of 65.25 years (range, 46-75 years). The main causes were chronic glomerulonephritis in 6 cases, diabetic nephropathy in 4 cases, and both kidney resection because of urinary tract tumors in 2 cases. The disease duration was 2-12 years (mean, 6 years). The 12 patients all underwent 5-14 times (mean, 7 times) failed prior vascular accesses [arteriovenous fistula (AVF）and arteriovenous graft (AVG)] leading to exhaustion of venous access sites on the upper extremities. ResultsThe AVALG on chest were functionally useful for hemodialysis access, 2-3 times per week, and the blood flow was 250-350 mL/minute; the average time for the first dialysis was 48 days (range, 42-93 days). All patients were followed up 12-54 months (mean, 20.92 months). There was no death during perioperative period. The primary patency rates at 6 and 12 months were 91.7% and 83.3% respectively, and the secondary patency rates at 6 and 12 months were both 100%. After operation, infection (1 case), thrombosis (2 cases), bleeding (2 cases), and swollen (1 case) occurred, which were all cured after corresponding treatment. ConclusionAVALG on chest is a supplementary option for chronic renal failure patients with inadequate upper extremity venous access sites after repeat occlusion.
ObjectiveTo put forward the concept of acute peroneal artery ischemia syndrome, and to study its typical clinical manifestations and imaging features so as to provide the basis of the evidence-based medicine for the diagnosis and treatment of acute peroneal artery ischemia. MethodsBetween October 2009 and December 2012, 3 cases (2 males and 1 female, aged 57, 68, and 71 years) of acute peroneal artery ischemia syndrome were treated. All the patients displayed typical three symptoms of "peroneal artery blood supply zone pale/red + severe pain of the gastrocnemius muscle + acute drop foot". Medical examination revealed that they all had localized tenderness in the lateral and inferior part of the gastrocnemius muscle, with decreasing of skin temperature. The pulse of dorsalis pedis artery and the posterior tibial artery on affected limbs could be felt. Blood coagulation function and biochemical assay showed that D-dimer, fibrinogen degradation products, creatine kinase, or myoglobin markedly elevated. Magnetic resonance angiography revealed proximal peroneal artery stenosis. All patients were treated with intravenous thrombolysis, anticoagulation, vasodilation, and improving circulation therapy. ResultsThe symptoms of lower limb swelling, pain, and fatigue were improved obviously in all patients after treatment. Blood coagulation function and biochemical assay showed D-dimer, fibrinogen degradation products, creatine kinase, or myoglobin were gradually reduced. The patients were discharged at 9-13 days after treatments, without recurrence during the follow-up of 1year. ConclusionAcute peroneal artery ischemia syndrome is a special type of acute lower limb ischemia, with the three symptoms of "peroneal artery blood supply zone pale/red+ severe pain of the gastrocnemius muscle + acute drop foot" as the main characteristics and should be treated by early active anticoagulant and recanalization therapy.