High-output heart failure due to arteriovenous malformation treated by endovascular embolisation.

High-output heart failure (HF) is an uncommon condition. This occurs when HF syndrome patients have a cardiac output higher than eight litres per minute. Shunts, such as fistulas and arteriovenous malformations are an important reversible cause.

[Interactions in antithrombotic and hypoglycemic therapy].

This review is an update on antiplatelet therapy and its interaction with oral hypoglycemic agents in diabetic patients with ischemic heart disease. We summarize the main pathophysiological mechanisms that intervene in diabetic patients and that increase the ischemic risk, the effects of the combination of oral hypoglycemic agents, their antithrombotic effects and their interaction with antiplatelet, and finally the studies that demonstrated the benefits of antiplatelet in diabetic patients in different scenarios of ischemic heart disease. The different mechanisms of action involve improved glycemic control, increased bioavailability of nitric oxide, reduced oxidative stress and, for certain molecules, direct inhibition of platelet activation and aggregation.

Beneficio económico de los ensayos clínicos controlados patrocinados: El gasto evitable en medicamentos para el tratamiento de la artritis reumatoidea.

Objectives: To estimate the following: (1) the avoidable cost of biologic (bDMARDs) and conventional synthetic Rheumatoid Arthritis (RA) modifying antirheumatic drugs (csDMARDs) during controlled clinical trials (CCTs), their extension period, and for bDMARDs in post study drug programs; and (2) to evaluate the impact on health insurances.

Methods: We analyzed 13 CCTs (233 patients) that evaluated bDMARDs. Avoidable cost was what the health insurance should have paid if the patient had not received the medication from the CCT sponsor and was estimated with a micro-costing approach (bottom-up method).

ProtozoaDB: dynamic visualization and exploration of protozoan genomes.

ProtozoaDB (http://www.biowebdb.org/protozoadb) is being developed to initially host both genomics and post-genomics data from Plasmodium falciparum, Entamoeba histolytica, Trypanosoma brucei, T.

Iodine-125 seed implantation as an adjunct to surgery in advanced recurrent squamous cell cancer of the head and neck.

Survival for extensive recurrent squamous cell carcinomas of the head and neck remains poor, with the major cause of death being local recurrence. Surgical implantation of iodine-125 interstitial seeds allows tumoricidal doses of radiation to be delivered to residual tumor while minimizing radiation doses to the surrounding tissues. From 1978 to 1988, 39 implantations were performed on 35 patients for extensive recurrent squamous cell carcinoma of the head and neck.

Intraoperative I-125 seed implantation for extensive recurrent head and neck carcinomas.

From 1978 to 1988, 41 patients with extensive recurrent carcinomas of the head and neck were treated with surgical resection plus intraoperative iodine-125 seed implantation. Surgery was performed to resect the tumors and to expose the tumor beds for implantation. I-125 seeds were implanted intraoperatively, with a spacing of 0.

A theory for the acquisition and loss of neuron specificity in visual cortex.

We assume that between lateral geniculate and visual cortical cells there exist labile synapses that modify themselves in a new fashion called threshold passive modification and in addition, non-labile synapses that contain permanent information. In the theory which results there is an increase in the specificity of response of a cortical cell when it is exposed to stimuli due to normal patterned visual experience. Non-patterned input, such as might be expected when an animal is dark-reared or raised with eyelids sutured, results in a loss of specificity, with details depending on whether noise to labile and non-labile junctions is correlated.