43 X 10(-3) mm(2) / s, for
b-300, respectively. Mean ADC values of malignant nodules were lower than benign nodules. There were significant differences in ADC values between benign and malignant nodules. ADC values among normal-appearing Selleck AZD1152-HQPA thyroid parenchyma of patients and normal-appearing thyroid parenchyma of healthy subjects were insignificant at all b factors.
Conclusion Benign nodules have higher ADC values than malignant ones. DWI may be helpful in differentiating malign and benign thyroid nodules.”
“Purpose: Aneurysms involving the supra-aortic vessels are rare but carry serious risk of embolization, thrombosis, and rupture. We describe our experience with the diagnosis, treatment strategies, and outcomes in patients with extended follow-up.
Methods: Data during a 17-year period (January 1990 to December 2007) was analyzed. We assessed age, gender, presenting symptoms, localization, pathologic diagnosis, type of procedures, complications, and survival.
Results: A total of 74 patients were treated for supra-aortic
aneurysms. Of all aneurysms treated, 63% were degenerative, 24% iatrogenic, 8% traumatic, 3% genetic, and 1% mycotic. The subclavian artery was most commonly affected (50%, 2/3 in the right side), followed by the common carotid (36%), internal carotid (10%), innominate (3%), and vertebral (1%). At the time of diagnosis, 52 patients (70%) were asymptomatic, but of those symptomatic 68% had an embolic event as a presenting symptom. Embolic episodes were more common in patients with smaller aneurysms (P < .006). Open surgery was performed in 77% of all cases, and the use of endovascular Everolimus cost techniques became the predominant treatment modality over the last 4 years. Survival at 30 days was 100%. Five- and 10-year survival rates were 87% and 43%, respectively.
Conclusion: Most cases of supra-aortic aneurysm are asymptomatic and embolization
as opposed to rupture represents the greatest risk to the patient. Most cases can be detected prior to symptoms. Endovascular repair is an emerging alternative of treatment and, with the current development of appropriate devices, will likely form the mainstay of therapy in the near future. (J Vasc Surg 2009;49:4-10.)”
“Objective: More effective adjuncts are needed to reduce the incidence of acute renal injury after thoracoabdominal selleck aortic aneurysm (TAAA) repair. The purpose of this randomized trial was to determine whether renal perfusion with cold blood provides better protection against renal ischemia than perfusion with cold crystalloid in patients undergoing TAAA repair with left heart bypass.
Methods: One hundred seventy-two patients were enrolled. Strict inclusion criteria were used, including planned Crawford extent II or III TAAA repair with left heart bypass. The patients were randomly assigned to receive intermittent renal perfusion with either 4 degrees C lactated Ringer’s solution (n = 86) or 4 degrees C blood (n = 86).