Does variable oxygen exposure cause preretinal neovascularization in the newborn rat?
Consistency of oxygen therapy is more important than overall oxygen level in inducing retinopathy. Consideration should be given to tighter control of intended oxygen therapy in premature infants, regardless of the target saturation level.
In this series, operative time failed to decrease with experience, and shorter operative times did not correlate with better clinical outcomes. The failure of operative time to decline with experience often reflects surgeons' willingness to attempt more difficult cases rather than an accurate representation of a "learning curve." Therefore, complication and readmission rates are more important than operative time and conversion rates for evaluating the learning curve and quality of laparoscopic colorectal surgery.