[Portal vein thrombosis and Prevotella melanigenica revealing an appendicular abscess].

Introduction: The misleading aspects of appendicitis are multiple. We report an observation, original not only from a clinical and bacteriological point of view but also because of the presence of a portal vein thrombosis.

Observation: A 48 year-old man was hospitalized for prolonged fever.

[Analysis of the electrical activity of the heart and computerization: digital criteria of right bundle-branch block].

The analysis of the electrical activity of the heart has benefitted over the last few years from the development and increased use of computer techniques. It lend itself well to these methods as the data is easily digitalised. The aim of this study was to determine digital criteria of right bundle branch block (RBBB) to facilitate diagnosis mainly when associated with right ventricular hypertrophy and true posterior myocardial infarction.

[Posterobasal infarction and right bundle branch block: value of computerized vectorcardiography].

The object of this study was to determine the vectocardiographic criteria of posterobasal myocardial infarction associated with right bundle branch block. Seventeen patients were examined; all had clinical and enzymatic evidence of myocardial infarction, associated with the unusual appearances of right bundle branch block with an isolated R wave in V1 and V2. The Frank X, Y, and Z axes were treated by computer to obtain a detailed octonal study of the QRS and T loops.

Clinical use of a new myocardial electrode.

Prior to clinical use, this new myocardial stimulating electrode was studied in animals in order to test its electrical and mechanical reliability. The Telectronics 030.168 electrode consists of a conductor constructed of 3 stainless steel wires.