Precut fistulotomy – widening its limits

Early precut fistulotomy for biliary access: time to change the paradigm of "the later, the better"?

BACKGROUND The precut timing during the biliary cannulation algorithm is a subject of controversy. Some studies suggest that early institution of precut is a safe and effective strategy even though the extent to which this approach may affect the duration of the ERCP is seldom addressed. OBJECTIVE To assess the success, safety, and procedure duration of an early precut fistulotomy (group A) v...

Anal fistulotomy by radiofrequency.

The fear of recurrence or impairment of continence following an operation of fistula in ano had compelled the surgeons to explore use of a variety of diagnostic aids to identify the offending tracts and an equal number of surgical procedures to reduce these risk factors. But despite all these attempts and trying a number of operative options, majority of surgeons still prefer the classical lay ...

Prediction and its limits.

Separation and its limits

away from this point here. .. The problem, schematically Terminologically, I will usemorphomic, etc. in a restricted sense, for the specific kind of distribution that is illustrated in this section; the main elements involved in this definition are adapted from Aronoff ’s  discussion. Consider a language that has different Root classes, in which a particular stem form—concretely, Stem—...

Epidemiology Faces Its Limits