Emergency coronary artery bypass surgery following coronary angioplasty and stenting: results of a French multicenter registry.

This study investigates the influence of coronary stenting on the risk of emergency bypass surgery performed within 24 hr of percutaneous transluminal coronary angioplasty (PTCA) with particular concern for incidence and indication. Since 1995, coronary stenting has been increasingly performed in France during angioplasty procedures, altering significantly the role of emergency bypass surgery. The outcome of elective stenting and widespread use of coronary stenting and its influence on emergency surgery have not been evaluated so far.

Cutaneous squamous cell carcinoma in human immunodeficiency virus-infected patients. A study of epidemiologic risk factors, human papillomavirus, and p53 expression.

Objective: To examine risk factors for the development of cutaneous squamous cell carcinoma (SCC) in a group of human immunodeficiency virus (HIV)-infected patients, including evaluation and detection of epidemiologic risk factors of human papillomavirus (HPV) and p53 expression.

Design: Case-control study during a 3-year period.

Setting: Dermatologic referral center.

[The single coronary artery].

Single coronary artery is a fairly rare entity which may nevertheless be found in 0.4 per cent of coronary arteriograms. The authors report 3 cases seen in 2 departments of cardiology.

Postextrasystolic sinoatrial exit block in human sick sinus syndrome: demonstration by direct recording of sinus node electrograms.

Ten patients with sick sinus syndrome having repetitive sinus node electrograms during long postpacing pauses were studied during programmed atrial stimulation. Sinus node activity was recorded using a percutaneous catheter electrode. A sinus node electrogram was recorded before the return atrial beat in seven patients; it was similar to the sinus node electrogram observed during postpacing pauses and is clearly identified because sinoatrial conduction time was markedly prolonged following the atrial extra beat.

[Color coding in vascular Doppler echography aimed at improving lesion quantification].

Color flow duplex scanning diffusion is now restricted by an expansive cost. Static or dynamic range of a faint endovascular image can better be assessed by mean velocities. Pathologic high velocities allows visualisation of the direction and the width of the jet.