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What should be learnt about the management of obstructive sleep apnea in hypertension?

G uidelines are commonly considered an instrument for giving specific recommendations to practicing physicians or specialists about how to manage a given clinical condition, but not too seldom they may turn out to be recommendations the experts are giving to themselves about what they should further learn in order to be able to provide better evidence-based recommendations [1]. This consideration is strengthened by reading the excellent document published in this issue of the Journal of Hypertension, summarizing the joint recommendations experts from the European Society of Hypertension (ESH) and the European Respiratory Society (ERS) have provided about the management of obstructive sleep apnea (OSA) in hypertensive patients [2]. There are common opinions about OSA and hypertension that are recurrent in treatises, reviews and original articles: