Intratemporal vascular tumors: detection with CT and MR imaging

The diagnostic contributions of computed tomography (CT) and magnetic resonance (MR) imaging were compared in 12 patients with benign intratemporal vascular tumors (hemangioma or vascular malformation). The tumors included six in the internal acoustic canal and six in the geniculate ganglion region. Clinical and histologic correlations were made. Two of the six patients with tumors in the internal acoustic canal underwent CT, and both required gas cisternography to show the tumor. Five patients in that group underwent MR imaging, and all five studies showed the tumor. All six patients with geniculate ganglion tumors underwent CT. Results in one study were questionable, and five showed the tumor. Five patients in this group underwent MR imaging, but the MR findings were positive in only two cases. MR imaging should therefore be performed before CT in the evaluation of facial nerve dysfunction, as it demonstrated all tumors in the internal acoustic canal and some in the geniculate ganglion region. If MR findings are negative, CT should then be performed to rule out a possible geniculate ganglion lesion.     

Review article: controversy in the therapy of gastro-oesophageal reflux disease—long-term proton pump inhibition or laparoscopic anti-reflux surgery?

The treatment of gastro-oesophageal reflux disease is controversial. Whilst medical treatment is successful in patients with mild to moderate disease, the threshold of severity above which an operation should be contemplated remains a matter for debate. Laparoscopic anti-reflux surgery may be lowering this threshold, as this form of therapy provides several advantages over its open counterpart, but it is not without risk, and few long-term results are available. This article reviews treatment options for reflux disease and examines the relative position of current medical and surgical therapies.     

Acute peripheral arterial and graft occlusion: treatment with selective infusion of urokinase and lysyl plasminogen

Thirty-five patients hospitalized for recent angiographically documented arterial occlusion in the legs (27 femoropopliteal arteries and eight grafts) benefited from local fibrinolytic therapy delivered at the site of the occlusion with a 4- or 5-F catheter. This therapy combined a continuous urokinase (UK) infusion of 1,000 U/kg/hour and a lysyl plasminogen (LYS-PLG) infusion of 15 microkatals every 30 minutes. Angiographically confirmed lysis was obtained in 85% of the cases. Only 3% of the patients had major and 6% had minor groin hematomas. Only two patients had concentrations of fibrinogen as low as 100 mg/dl. Intravascular infusion of UK-LYS-PLG is as effective as streptokinase. Its excellent tolerance makes it a good alternative in the treatment of acute ischemia in the lower limbs.     

A STUDY TO COMPARE THE EFFICACY OF TWO METHODS OF SKIN PREPARATION PRIOR TO JOINT INJECTION

This paper compares two methods of skin preparation in termsof their effectiveness in rendering the skin sterile, ease ofuse, and their cost. KEY WORDS: Skin preparation, Joint injection, Joint infection     

The role of iron in an acute model of skin inflammation induced by reactive oxygen species (ROS)

The effect of iron was studied in rats in a ROS-initiated model of acute skin inflammation. Iron dextran was administered i.v. 24 h before the induction of the inflammatory response by intradermal injection of glucose oxidase attached to polyethylene glycol (GOD-PEG). Iron exacerbated the response at 24 and 48 h (P greater than 0.001). Histologically, a similar picture was seen to that without iron except for an increase in tissue oedema and matrix destruction including the skin glands. Associated with iron loading was an increase in Perls stainable iron in the skin (P greater than 0.025) and liver (P greater than 0.001). However, skin inflammation without iron loading also increased skin iron levels (P greater than 0.025). Total serum iron was decreased in iron-loaded and GOD-PEG animals (P greater than 0.01) and the unbound iron binding capacity (UIBC) increased (P greater than 0.01).     

Clinical trial: the efficacy and safety of oral PF‐03491390, a pancaspase inhibitor – a randomized placebo‐controlled study in patients with chronic hepatitis C

Aliment Pharmacol Ther 31 , 969–978

Summary

Background Elevated serum levels of aspartate aminotransferase (AST) and alanine aminotransferase (ALT) reflect hepatocellular injury in patients with chronic hepatitis C virus (HCV). Increased apoptosis and activated caspases are present in these patients. PF‐03491390 inhibits multiple caspases and lowers serum AST and ALT levels in patients with chronic liver diseases. Aim To determine if treatment with an oral pancaspase inhibitor could reduce serum AST and ALT in patients with HCV. Methods Double‐blind, randomized, placebo‐controlled, parallel‐dose study in 204 patients treated with placebo or PF‐03491390 (5, 25 or 50 mg) orally twice daily (b.d.) for up to 12 weeks. Serum AST and ALT were monitored weekly. Results Significant reductions in serum AST and ALT were observed within 1 week of initiating PF‐03491390 in all treatment groups (P < 0.0001). These reductions in AST and ALT were maintained throughout the 12 week treatment period and returned to baseline levels when PF‐03491390 was discontinued. Increasing the dose did not further lower AST or ALT. The most frequently reported adverse events were headache and fatigue. Conclusion PF‐03491390 significantly reduced serum AST and ALT levels in patients with chronic HCV, and was well tolerated over 12 weeks.     

Prehospital Thrombolysis in Acute Myocardial Infarction Salvages Myocardium

Early thrombolysis can be given at home, by a medical intensive care unit ambulance team, in the emergency room, or in the coronary care unit. Thrombolysis should be given very early (<2 or 4 hours) and reestablish normal or near normal coronary blood flow. Methods of management include home monitoring of high risk patients with a transtelephonic 12-lead monitor ECG, the management of the patient at home by a trained GP, physician, or medical technician controlled intensive care ambulance team, or a rapid "door to needle" time in the emergency room. Each of these systems requires patient and physician reeducation, to make each group aware of the advantages of early and complete revascularization. An alternative fast track can be provided by immediate percutaneous transluminal coronary angioplasty if the hospital can be prewarned by the physician outside. This article reviews the current published literature and also our experience in 760 patients in Jerusalem. Infarct size, complication rate, and long-term prognosis is related to early complete restoration of coronary blood flow.