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Place · Level 3
全球 10 亿人 · 80% 未诊断 · AHI ≥ 5 + 症状 · STOP-BANG 筛查 · CPAP 一线 · 心血管、代谢、认知拐点
synergy · 1
↔GERD
The two feed each other: the negative intrathoracic pressure of a breathing event pulls stomach contents up, and nocturnal reflux fragments sleep in turn. Treating both together beats treating either alone.
antagonism · 2
Sleep restriction transiently increases daytime sleepiness, so someone with untreated sleep apnoea should not self-administer it — that stacks two things both cutting into alertness. CPAP first, then CBT-I.
When insomnia comes with sleep apnoea, hypnotics work against you: they relax upper-airway muscle and blunt the arousal response, making breathing events longer and deeper. The route here is CPAP, not a sleeping pill.
regulates · 6
OSA → intermittent hypoxia + sympathetic surge + dawn BP spikes → HTN/AF/CHF. SURMOUNT-OSA 2024 cut AHI −25 to −29.
OSA → repeated nocturnal hypoxia + sympathetic surge + deep-sleep disruption → worsens insulin resistance + HbA1c. Reverse: T2D neuropathy + obesity → upper-airway collapse vulnerability. SURMOUNT-OSA (NEJM 2024) tirzepatide improves both in one move.
80% of resistant HTN (≥3 drugs + diuretic, uncontrolled) hides OSA. AHA/ACC recommend routine OSA screening in resistant HTN. CPAP averages 2-3 mmHg SBP drop; responders 5-8 mmHg.
The first month of a fatigue work-up is about finding reversible causes, and obstructive sleep apnoea is the one most often missed — screen it and treat it before supplementing anything.
OSA is one of LOH's 5 reversible confounders — low T + snoring + daytime sleepiness + neck ≥ 43 cm: trial CPAP 6-12 months before re-testing T.
Cardioembolic stroke usually traces back to atrial fibrillation, and AF itself is cultivated — repeated nocturnal breathing events, hypoxia and swings in intrathoracic pressure are one of the routes that grow it. So when AF is on the table, think about sleep too.
contrast · 2
Still tired in the daytime after a full night means the problem is not duration: it is sleep quality broken up by repeated breathing events — an OSA work-up, and catching up on hours will not fix it.
≠Sleep Architecture & Sleep Debt
Deep sleep declining with age is a real physiological change, not a cause for alarm. But a normal decline is not an absence: no deep sleep at all, heavy fragmentation, clear daytime impairment — that is past the line of normal ageing and belongs in a breathing-event work-up.