{"id":3958,"date":"2026-02-13T19:03:13","date_gmt":"2026-02-14T01:03:13","guid":{"rendered":"https:\/\/drakarlacastolo.com\/?p=3958"},"modified":"2026-02-13T19:03:15","modified_gmt":"2026-02-14T01:03:15","slug":"sleep-apnea-and-snoring-hidden-cardiac-risk-factor","status":"publish","type":"post","link":"https:\/\/drakarlacastolo.com\/en\/blog\/cardiometabolic-health\/sleep-apnea-and-snoring-hidden-cardiac-risk-factor\/","title":{"rendered":"Sleep apnea and snoring: the hidden cardiac risk factor"},"content":{"rendered":"<p>Snoring is common. But <strong>snore loudly<\/strong>, with pauses for breathing, awakenings and tiredness during the day, may be something else: <strong>obstructive sleep apnea<\/strong>. And that diagnosis matters for one simple reason: it doesn't just affect rest; <strong>increases cardiometabolic risk<\/strong> (especially hypertension) and is associated with arrhythmias and cardiovascular events in certain profiles.<\/p>\n\n\n\n<p>The problem is that many people get used to living tired and normalize it. Meanwhile, the heart and vessels do suffer.<\/p>\n\n\n\n<h2 class=\"wp-block-heading\">The most important<\/h2>\n\n\n\n<ul class=\"wp-block-list\">\n<li>Not all snoring is apnea, but <strong>snoring + pauses + non-restorative sleep<\/strong> merits evaluation.<\/li>\n\n\n\n<li>Sleep apnea is associated with <strong>hypertension (especially difficult to control)<\/strong> and with <strong>arrhythmias<\/strong> as atrial fibrillation in some patients.<\/li>\n\n\n\n<li>The objective is not to \u201cstop snoring\u201d, but rather to <strong>improve oxygenation and reduce nocturnal physiological stress<\/strong> with a measurable plan.<\/li>\n<\/ul>\n\n\n\n<h2 class=\"wp-block-heading\">Snoring vs. sleep apnea: not the same thing<\/h2>\n\n\n\n<p><strong>Snoring<\/strong> is vibration of throat tissues by the passage of air. It can be benign.<\/p>\n\n\n\n<p><strong>Obstructive sleep apnea (OSA)<\/strong> occurs when, while you sleep, the airway partially or totally collapses and they appear:<\/p>\n\n\n\n<ul class=\"wp-block-list\">\n<li>breathing pauses (or very shallow breathing),<\/li>\n\n\n\n<li>oxygen drops,<\/li>\n\n\n\n<li>repeated micro-awakenings (even if you don't remember them).<\/li>\n<\/ul>\n\n\n\n<p>Typical result: you sleep many hours, but <strong>you do not rest<\/strong>.<\/p>\n\n\n\n<h2 class=\"wp-block-heading\">Why apnea increases cardiac risk<\/h2>\n\n\n\n<p>The short route: apnea creates repeated \u201cstress\u201d during the night (intermittent hypoxia + sympathetic activation + negative intrathoracic pressure + sleep fragmentation). That impacts on three relevant fronts:<\/p>\n\n\n\n<h3 class=\"wp-block-heading\">1) Blood pressure (especially at night)<\/h3>\n\n\n\n<p>Apnea is associated with:<\/p>\n\n\n\n<ul class=\"wp-block-list\">\n<li><strong>higher pressure at night<\/strong>,<\/li>\n\n\n\n<li>lower \u201cnocturnal descent\u201d (pressure does not drop as it should),<\/li>\n\n\n\n<li><strong>resistant hypertension<\/strong> (when it is difficult to control).<\/li>\n<\/ul>\n\n\n\n<p>If you want to check goals and correct measurement (not to deal with false numbers):<\/p>\n\n\n\n<ul class=\"wp-block-list\">\n<li><a href=\"https:\/\/drakarlacastolo.com\/en\/blog\/diagnostic-evaluation\/blood-pressure-goals-home-blood-pressure-measurement\/\">Blood pressure: goals and measurement at home<\/a><\/li>\n\n\n\n<li><a href=\"https:\/\/drakarlacastolo.com\/en\/blog\/diagnostic-evaluation\/hypertension\/\">Hypertension<\/a><\/li>\n<\/ul>\n\n\n\n<p>And if there is suspicion of nocturnal pressure\/variability, it may be useful:<\/p>\n\n\n\n<ul class=\"wp-block-list\">\n<li><a href=\"https:\/\/drakarlacastolo.com\/en\/studies\/24h-pressure-map\/\">24h pressure MAP<\/a><\/li>\n\n\n\n<li><a href=\"https:\/\/drakarlacastolo.com\/en\/blog\/diagnostic-evaluation\/24-hour-map\/\">MAP 24 hours (guide)<\/a><\/li>\n<\/ul>\n\n\n\n<h3 class=\"wp-block-heading\">2) Cardiac rhythm and arrhythmias<\/h3>\n\n\n\n<p>In some patients, apnea is associated with an increased likelihood of:<\/p>\n\n\n\n<ul class=\"wp-block-list\">\n<li>atrial fibrillation,<\/li>\n\n\n\n<li>extrasystoles,<\/li>\n\n\n\n<li>variability of the rhythm during the night.<\/li>\n<\/ul>\n\n\n\n<p>If you have palpitations or are concerned about atrial fibrillation:<\/p>\n\n\n\n<ul class=\"wp-block-list\">\n<li><a href=\"https:\/\/drakarlacastolo.com\/en\/blog\/diagnostic-evaluation\/palpitations-common-causes-and-when-to-worry\/\">Palpitations: common causes and when to worry about them<\/a><\/li>\n\n\n\n<li><a href=\"https:\/\/drakarlacastolo.com\/en\/blog\/cardiac-conditions\/atrial-fibrillation-arrhythmias\/\">Arrhythmias: atrial fibrillation<\/a><\/li>\n<\/ul>\n\n\n\n<p>And to document episodes:<\/p>\n\n\n\n<ul class=\"wp-block-list\">\n<li><a href=\"https:\/\/drakarlacastolo.com\/en\/studies\/electrocardiogram-echocardiogram\/\">Electrocardiogram (ECG)<\/a><\/li>\n\n\n\n<li><a href=\"https:\/\/drakarlacastolo.com\/en\/studies\/24h-holter-echocardiography\/\">Holter ECG 24h<\/a><\/li>\n<\/ul>\n\n\n\n<h3 class=\"wp-block-heading\">3) Global cardiometabolic risk<\/h3>\n\n\n\n<p>Apnea usually coexists with:<\/p>\n\n\n\n<ul class=\"wp-block-list\">\n<li>abdominal weight gain,<\/li>\n\n\n\n<li>insulin resistance\/prediabetes,<\/li>\n\n\n\n<li>high triglycerides,<\/li>\n\n\n\n<li>fatty liver.<\/li>\n<\/ul>\n\n\n\n<p>That package increases cardiovascular risk by \u201caccumulation\u201d of factors. If you are already working that part:<\/p>\n\n\n\n<ul class=\"wp-block-list\">\n<li><a href=\"https:\/\/drakarlacastolo.com\/en\/blog\/special-populations\/diabetes-and-heart-goals\/\">Diabetes and heart: goals<\/a><\/li>\n\n\n\n<li><a href=\"https:\/\/drakarlacastolo.com\/en\/blog\/lifestyle-prevention\/cholesterol\/\">Cholesterol<\/a><\/li>\n\n\n\n<li><a href=\"https:\/\/drakarlacastolo.com\/en\/blog\/\">High triglycerides and fatty liver: cardiovascular impact<\/a><\/li>\n<\/ul>\n\n\n\n<h2 class=\"wp-block-heading\">Warning signs: when to suspect apnea<\/h2>\n\n\n\n<p>Consider evaluation if there are several of these:<\/p>\n\n\n\n<ul class=\"wp-block-list\">\n<li>Loud snoring (they report it to you) and <strong>breathing pauses<\/strong> observed.<\/li>\n\n\n\n<li>Awakenings with choking, \u201cgasping\u201d or shortness of breath.<\/li>\n\n\n\n<li>Daytime sleepiness, chronic fatigue, difficulty concentrating.<\/li>\n\n\n\n<li>Morning headaches.<\/li>\n\n\n\n<li>Hypertension that is difficult to control or that \u201ccomes out strange\u201d (very high in the morning or with a lot of variability).<\/li>\n\n\n\n<li>Increased abdominal or neck weight or increased neck circumference.<\/li>\n\n\n\n<li>Palpitations at night or upon awakening.<\/li>\n<\/ul>\n\n\n\n<h2 class=\"wp-block-heading\">What can be included in the evaluation (without inventing extra studies)?<\/h2>\n\n\n\n<p>Depending on the case, it is usually integrated:<\/p>\n\n\n\n<ul class=\"wp-block-list\">\n<li>sleep history (snoring, pauses, sleepiness, schedules),<\/li>\n\n\n\n<li>comorbidities (blood pressure, glucose, weight, arrhythmias),<\/li>\n\n\n\n<li>and confirmation with a <strong>sleep study<\/strong> (modality defined by the physician, according to your profile and suspicion).<\/li>\n<\/ul>\n\n\n\n<p>From cardiology, it is often complemented by assessing the impact and risk:<\/p>\n\n\n\n<ul class=\"wp-block-list\">\n<li><a href=\"https:\/\/drakarlacastolo.com\/en\/cardiology-consultation\/\">Cardiology consultation<\/a><\/li>\n\n\n\n<li><a href=\"https:\/\/drakarlacastolo.com\/en\/cardiac-checkup\/\">Cardiac check up<\/a><\/li>\n<\/ul>\n\n\n\n<h2 class=\"wp-block-heading\">What really helps (and what doesn't)<\/h2>\n\n\n\n<h3 class=\"wp-block-heading\">Measures with the greatest impact (according to profile)<\/h3>\n\n\n\n<ul class=\"wp-block-list\">\n<li><strong>Weight loss<\/strong> when there is excess (especially abdominal) usually improves apnea and pressure.<\/li>\n\n\n\n<li>Avoid alcohol at night (worsens airway collapse and fragments sleep).<\/li>\n\n\n\n<li>Sleeping on the side if there is a positional component.<\/li>\n\n\n\n<li>Treat nasal congestion if it is a factor (as medically indicated).<\/li>\n\n\n\n<li>In moderate-severe apnea or with high impact: devices such as <strong>CPAP<\/strong> (the decision is made by diagnosis and symptoms, not by \u201csnoring\u201d).<\/li>\n<\/ul>\n\n\n\n<h3 class=\"wp-block-heading\">What NOT to assume<\/h3>\n\n\n\n<ul class=\"wp-block-list\">\n<li>\u201cIf I snore, I'm sure it's apnea\u201d (not necessarily).<\/li>\n\n\n\n<li>\u201cIf I don't snore, I can't have apnea\u201d (yes it can happen, although it is less typical).<\/li>\n\n\n\n<li>\u201cWith a cell phone app I already know\u201d (can guide, but does not confirm diagnosis).<\/li>\n<\/ul>\n\n\n\n<h2 class=\"wp-block-heading\">When to consult soon (not \u201cwhen you can\u201d)<\/h2>\n\n\n\n<p>Check beforehand if any of these are available:<\/p>\n\n\n\n<ul class=\"wp-block-list\">\n<li>dangerous drowsiness (e.g., while driving),<\/li>\n\n\n\n<li>episodes of fainting or near fainting,<\/li>\n\n\n\n<li>chest pain or tightness, or significant shortness of breath,<\/li>\n\n\n\n<li>palpitations with dizziness.<\/li>\n<\/ul>\n\n\n\n<p>Useful routes:<\/p>\n\n\n\n<ul class=\"wp-block-list\">\n<li><a href=\"https:\/\/drakarlacastolo.com\/en\/blog\/emergencies\/chest-pain-in-an-emergency\/\">Chest pain: when is it an emergency?<\/a><\/li>\n\n\n\n<li><a href=\"https:\/\/drakarlacastolo.com\/en\/blog\/cardiac-conditions\/shortness-of-breath-when-it-is-of-the-heart\/\">Shortness of breath: when it may be heart-related<\/a><\/li>\n\n\n\n<li><a href=\"https:\/\/drakarlacastolo.com\/en\/blog\/diagnostic-evaluation\/dizziness-and-fainting-syncope-causes-and-cardiology-study\/\">Dizziness and fainting: syncope<\/a><\/li>\n<\/ul>\n\n\n\n<p>If you suspect apnea (or snore loudly with fatigue) and you want to integrate cardiovascular risk and a clear plan, you can <a href=\"https:\/\/drakarlacastolo.com\/en\/contact\/?utm_source=chatgpt.com\">schedule an appointment here<\/a>.<\/p>\n\n\n\n<h2 class=\"wp-block-heading\">References<\/h2>\n\n\n\n<ul class=\"wp-block-list\">\n<li><a href=\"https:\/\/www.heart.org\/en\/health-topics\/sleep-disorders\/sleep-apnea-and-heart-disease-stroke\" target=\"_blank\" rel=\"noopener\">American Heart Association - Sleep apnea and heart disease<\/a><\/li>\n\n\n\n<li><a href=\"https:\/\/www.nhlbi.nih.gov\/health\/sleep-apnea\" target=\"_blank\" rel=\"noopener\">NHLBI (NIH) - Sleep apnea<\/a><\/li>\n\n\n\n<li><a href=\"https:\/\/sleepeducation.org\/sleep-disorders\/obstructive-sleep-apnea\/\" target=\"_blank\" rel=\"noopener\">American Academy of Sleep Medicine - Obstructive sleep apnea<\/a><\/li>\n\n\n\n<li><a href=\"https:\/\/www.cdc.gov\/sleep\/index.html\" target=\"_blank\" rel=\"noopener\">CDC - Sleep and sleep disorders<\/a><\/li>\n<\/ul>","protected":false},"excerpt":{"rendered":"<p>Roncar es com\u00fan. Pero roncar fuerte, con pausas para respirar, despertares y cansancio durante el d\u00eda, puede ser otra cosa: apnea obstructiva del sue\u00f1o. Y ese diagn\u00f3stico importa por un motivo simple: no solo afecta el descanso; sube el riesgo cardiometab\u00f3lico (sobre todo hipertensi\u00f3n) y se asocia con arritmias y eventos cardiovasculares en ciertos perfiles. [&hellip;]<\/p>\n","protected":false},"author":1,"featured_media":0,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"_acf_changed":false,"inline_featured_image":false,"site-sidebar-layout":"default","site-content-layout":"","ast-site-content-layout":"default","site-content-style":"default","site-sidebar-style":"default","ast-global-header-display":"","ast-banner-title-visibility":"","ast-main-header-display":"","ast-hfb-above-header-display":"","ast-hfb-below-header-display":"","ast-hfb-mobile-header-display":"","site-post-title":"","ast-breadcrumbs-content":"","ast-featured-img":"","footer-sml-layout":"","ast-disable-related-posts":"","theme-transparent-header-meta":"","adv-header-id-meta":"","stick-header-meta":"","header-above-stick-meta":"","header-main-stick-meta":"","header-below-stick-meta":"","astra-migrate-meta-layouts":"default","ast-page-background-enabled":"default","ast-page-background-meta":{"desktop":{"background-color":"var(--ast-global-color-4)","background-image":"","background-repeat":"repeat","background-position":"center center","background-size":"auto","background-attachment":"scroll","background-type":"","background-media":"","overlay-type":"","overlay-color":"","overlay-opacity":"","overlay-gradient":""},"tablet":{"background-color":"","background-image":"","background-repeat":"repeat","background-position":"center center","background-size":"auto","background-attachment":"scroll","background-type":"","background-media":"","overlay-type":"","overlay-color":"","overlay-opacity":"","overlay-gradient":""},"mobile":{"background-color":"","background-image":"","background-repeat":"repeat","background-position":"center center","background-size":"auto","background-attachment":"scroll","background-type":"","background-media":"","overlay-type":"","overlay-color":"","overlay-opacity":"","overlay-gradient":""}},"ast-content-background-meta":{"desktop":{"background-color":"var(--ast-global-color-5)","background-image":"","background-repeat":"repeat","background-position":"center center","background-size":"auto","background-attachment":"scroll","background-type":"","background-media":"","overlay-type":"","overlay-color":"","overlay-opacity":"","overlay-gradient":""},"tablet":{"background-color":"var(--ast-global-color-5)","background-image":"","background-repeat":"repeat","background-position":"center center","background-size":"auto","background-attachment":"scroll","background-type":"","background-media":"","overlay-type":"","overlay-color":"","overlay-opacity":"","overlay-gradient":""},"mobile":{"background-color":"var(--ast-global-color-5)","background-image":"","background-repeat":"repeat","background-position":"center center","background-size":"auto","background-attachment":"scroll","background-type":"","background-media":"","overlay-type":"","overlay-color":"","overlay-opacity":"","overlay-gradient":""}},"footnotes":""},"categories":[46],"tags":[],"class_list":["post-3958","post","type-post","status-publish","format-standard","hentry","category-salud-cardiometabolica"],"acf":[],"_links":{"self":[{"href":"https:\/\/drakarlacastolo.com\/en\/wp-json\/wp\/v2\/posts\/3958","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/drakarlacastolo.com\/en\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/drakarlacastolo.com\/en\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/drakarlacastolo.com\/en\/wp-json\/wp\/v2\/users\/1"}],"replies":[{"embeddable":true,"href":"https:\/\/drakarlacastolo.com\/en\/wp-json\/wp\/v2\/comments?post=3958"}],"version-history":[{"count":1,"href":"https:\/\/drakarlacastolo.com\/en\/wp-json\/wp\/v2\/posts\/3958\/revisions"}],"predecessor-version":[{"id":3959,"href":"https:\/\/drakarlacastolo.com\/en\/wp-json\/wp\/v2\/posts\/3958\/revisions\/3959"}],"wp:attachment":[{"href":"https:\/\/drakarlacastolo.com\/en\/wp-json\/wp\/v2\/media?parent=3958"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/drakarlacastolo.com\/en\/wp-json\/wp\/v2\/categories?post=3958"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/drakarlacastolo.com\/en\/wp-json\/wp\/v2\/tags?post=3958"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}