Comparison of rhinomanometric and computational fluid dynamic assessment of nasal resistance with respect to measurement accuracy.

Purpose: Computational fluid dynamics (CFD)-based calculation of intranasal airflow became an important method in rhinologic research. Current evidence shows weak to moderate correlation as well as a systematic underprediction of nasal resistance by numerical simulations. In this study, we investigate whether these differences can be explained by measurement uncertainties caused by rhinomanometric devices and procedures.

Four-phase rhinomanometry: a multicentric retrospective analysis of 36,563 clinical measurements.

Rhinomanometry can still be considered as the standard technique for the objective assessment of the ventilatory function of the nose. Reliable technical requirements are given by fast digital sensors and modern information technology. However, the xyimaging of the pressure-flow relation typically shows loops as a sign of hysteresis, with the need for resolution of the breath in four phases.

Endoscopic guided rhinoplasty.

Rhinoplasty operations were first performed in Europe in the 19th century, and since that time there has been much controversy on the best approach. Currently, the majority of rhinoplasty operations are performed using the "open access" approach. This approach has helped many surgeons get started in functional aesthetic surgery.