Can Septoplasty Cause Sleep Apnea?

Certainly its possible, although very uncommon. In fact Septoplasty can improve snoring is a small percentage of sufferers. You would have to also have developed poorer nasal breathing as a result of the Septoplasty. If its due to scarring as you believe, then this can easily be confirmed by examination. You need a sleep study to document you snore and determine if you also have sleep apnea. 

Sleep Apnea is not the same as snoring. Sleep apnea is a true disturbance in breathing while you are asleep. These gaps in breathing have to last a certain amount of time and have to occur a certain number of times each minute to qualify for the diagnosis. It requires a sleep lab study or something equivalent. It is unusual for the source of the airway obstruction to be at the level of the nose. It is usually further down the airway. Therefore, it is unlikely that a septoplasty would cause apnea. I would suggest getting a sleep study to determine if in fact you do have apnea.

Septoplasty cannot cure sleep apnea or make moderate to severe sleep apnea worse. Obstructive sleep apnea is a chronic disease causing excessive daytime sleepiness, hypertension, and placing patients at risk for cardiovascular disorders. The primary treatment is CPAP. Septoplasty can help to reduce PAP pressures. There are a number of surgeries that can help with OSA.