hypertrophic cardiomyopathy and hot weather

The publisher's final edited version of this article is available at, Prior to having any therapeutic procedure performed for your HC, have you experienced any symptoms (shortness of breath, angina, presyncope, syncope, and chest tightness)? HHS Vulnerability Disclosure, Help Hindieh W, Adler A, Weissler-Snir A, Fourey D, Harris S, Rakowski H. J Sci Med Sport.

A subset of patients with hypertrophic cardiomyopathy (HC) report aggravation of symptoms in warmer temperatures. Significance of postprandial symptom exacerbation in hypertrophic cardiomyopathy. The discussion should include development of a care plan regarding genetic evaluation, activity, lifestyle, and therapy choices, along with full disclosure of the risks, benefits, and anticipated outcomes of all options. Furthermore, these patients had a lower QOL (P=.04), and compared with patients without symptom exacerbation, a greater proportion of patients with symptom exacerbation had undergone surgical myectomy (P=.01). A prior study showed ventricular arrhythmias arising when parasympathetic activity is impaired and sympathetic activity is enhanced (9). Hypertrophic cardiomyopathy often goes undiagnosed because many people with the disease have few, if any, symptoms.

Novartis Hellas: , Warm weather and strenuous activity can be a dangerous combination for people that have hypertrophic Download our printable information sheets: Watch this episode of House Calls: Explaining HCM (Video). Mayo Clinic. Pelliccia A, Lemme E, Maestrini V, et al. Cirino AL, et al. Symptom improvement in temperature extremes was rare (8%), but when documented, they more often occurred in colder temperatures. Your doctor may recommend exercising on an empty stomach because eating a large meal can worsen obstruction in some people. In addition to sports participation, patients with HCM also have several occupational considerations addressed in the new document. Retrieved November 1, 2020, from https://www.mayoclinic.org/symptoms/fatigue/basics/definition/sym-20050894. This type of cardiomyopathy causes the heart muscle to become larger and thicker than normal. Some people may not have signs or symptoms in the early stages of the disease but may develop them over time. Treatment depends on the severity of symptoms. Vigorous exercise in patients with hypertrophic cardiomyopathy. Surgical relief of diffuse subvalvular aortic stenosis. We raise money to research cures and treatments for the worlds biggest killers. Find out how to leave us a gift, Learn to do CPR and use a defibrillator in just 15 minutes on your mobile or tablet. Hypertrophic cardiomyopathy (HCM) is a disease in which the heart muscle becomes thickened (hypertrophied). These genes cause the walls of the heart chamber (left ventricle) to become thicker than normal. Shortness of breath: This symptom can also worsen after physical activity.

Clinical outcome of hypertrophic cardiomyopathy in athletes. But even if you have HCM, not all of your fatigue is necessarily due to HCM! Although no difference between patient groups was observed in resting or provoked LVOT, the gradient was tested at typical room temperature, and a gradient provoked by temperature fluctuations therefore may have been missed.

Many HCM patients find themselves avoiding social activities to "conserve" energy for more critical functions of daily living. OMahony C, Jichi F, Pavlou M, Monserrat L, Anastasakis A, Rapezzi C, Biagini E, Gimeno JR, Limongelli G, McKenna WJ, Omar RZ, Elliott PM. Symptoms include dyspnea, chest pain, syncope, and sudden death.

Our Groups This Month: Saturday 1st April at 10am - Swansea (in-person) Monday 3rd at 2pm - Cardiomyopathy & Medications (online) Tuesday 4th at 7pm - PPCM (online) Tuesday 11th at 2pm - Cardiomyopathy & ICDs/CRTs (online) Tuesday 11th at 7pm - Coffee & Catch Up: Evening Edition (online) Friday 14th at 12 noon - Advanced The risk of heart complications can vary between families and among different members of the same family, so its important that your health care team identifies people who are most at risk for these complications so preventative treatment can be provided. This may sound like depression. All echocardiograms were performed at a single tertiary referral center, as described previously (2).

Most people with HCM have this type. You should get emergency help if your fatigue is related to a mental health problem and your symptoms include thoughts of harming yourself or someone else.

Its estimated that 1 in every 500 people have HCM, but a large Heart rate recovery in patients with hypertrophic cardiomyopathy. National Center ", , , ..

Hypertrophic cardiomyopathy is a disease in which the heart muscle becomes abnormally thick, and it is usually inherited. Obstruction can reduce the amount of blood being pushed out of your heart, and make the heart work much harder. WebHypertrophic cardiomyopathy is a common genetic disorder that affects about 1 in 500 1 people and causes the heart muscle to become thicker and stiff. Hypertrophic cardiomyopathy is most often inherited and is the most common form of genetic heart disease. The physical activity guidelines for Americans. Losing too much body fluid can increase your internal body temperature, which could be life-threatening if left untreated. Overview of Study Population. If someone has been diagnosed with HCM, first degree relatives which include siblings and parents, should also be checked. Less blood than normal is then pumped out from your heart with each heartbeat.

Zipes DP. government site. If significant correlations do exist, this study strives to be the foundation for further prospective work that examines real-time LVOT gradient changes in patients with HC, dependent upon variation of environmental temperature, or if not, it possibly will help determine future directions for physiologic investigations. (PDF), Fill out a discussion guide online to print and take to your appointment.

The risks and complications of heart surgery increase with age. The site is secure. Epub 2015 Apr 30. Parents, children or siblings of a person with hypertrophic cardiomyopathy should ask their health care providers about screening for the disease.

The heart muscle cells enlarge more than they should and scarring often develops between the cells. Mayo Clinic.

These medications may help improve symptoms and function, but may have side effects. For those with symptoms, the focus is on symptom management using medications and procedures. Authors/Task Force members; Elliott PM, Anastasakis A, Borger MA, Borggrefe M, Cecchi F, Charron P, Hagege AA, Lafont A, Limongelli G, Mahrholdt H, McKenna WJ, Mogensen J, Nihoyannopoulos P, Nistri S, Pieper PG, Pieske B, Rapezzi C, Rutten FH, Tillmanns C, Watkins H. Eur Heart J. MeSH The https:// ensures that you are connecting to the

This can mean that your left ventricle may not fill as easily as normal. WebHCM is a condition where areas of heart muscle become thickened and stiff. Accessed Dec. 9, 2021. We work too hard or exercise too hard. Hypertrophic cardiomyopathy (adult). They should make you feel better in less than 30 minutes: If you use a GTN spray to control your anginayou should take extra care in hot weather. Hypertrophic cardiomyopathy (HCM) may lead to problems which include the following: The affected heart muscle (usually around the left ventricle) may become stiff. Reasons for excluding 162 patients are shown in the Figure. ), who was masked to all patient variables except age and sex at the time the survey was conducted. We surveyed patients with HC regarding temperature and HC symptoms.

There is currently only one disease-specific medication to treat hypertrophic cardiomyopathy. of your fatigue. https://www.cardiosmart.org/topics/hypertrophic-cardiomyopathy. Exclusion criteria were age <18 years and lack of echocardiographic data before any surgical intervention for HC. The new recommendations reflect updated evidence on diagnostic modalities such as electrocardiography, imaging, and genetic testing. HCM patients can have almost any medical problem that anyone else can! Nearly 3 out of 4 cardiac arrests that don't happen in hospitals, happen in homes. In hypertrophic cardiomyopathy (HCM), the muscular heart walls (septum) are much thicker (hypertrophied) than those in a typical heart. And HCM doesn't give us immunity from any of these causes. Your medication can then be reviewed or adapted as necessary. Front Pharmacol. In hot weather, check on your friends and relatives regularly to make sure they are cool and comfortable. But even if you have HCM, not all of your fatigue is necessarily due to HCM! 2014 ESC Guidelines on diagnosis and management of hypertrophic cardiomyopathy: the Task Force for the Diagnosis and Management of Hypertrophic Cardiomyopathy of the European Society of Cardiology (ESC). Maron MS, Olivotto I, Betocchi S, Casey SA, Lesser JR, Losi MA, Cecchi F, Maron BJ. The guideline offers a strong recommendation for patients facing complex decisions to be referred to multidisciplinary HCM centers to optimize care. *.

Furthermore, the survey conductor (J.P.B.) Hypertrophic cardiomyopathy overview. 1,2 In the United States, 750,000 people are estimated to have HCM; however, only approximately 100,000 people have been diagnosed, signifying a large gap in the recognition and understanding of this You can speak to one of our nurses by calling 0300 330 3311 weekdays 9am-5pm. The two can be related - fatigue can certainly be depressing! Olivotto I, Maron MS, Adabag AS, Casey SA, Vargiu D, Link MS, Udelson JE, Cecchi F, Maron BJ. Unable to load your collection due to an error, Unable to load your delegates due to an error. Cover windows exposed to direct sunlight with shutters if you have them, or blinds or curtains if you don't. Hypertrophic cardiomyopathy Hypertrophic cardiomyopathy (HCM) is a disease in which the heart muscle becomes abnormally thick (hypertrophied). The thickened heart muscle can make it harder for the heart to pump blood. 1-800-AHA-USA-1 Hypertrophic cardiomyopathy care at Mayo Clinic. FOIA Also called nonsurgical septal reduction therapy, alcohol septal ablation. It can happen at any age, but most receive a diagnosis in middle age.

The previously validated SCD risk score (6) was used to calculate the 5-year risk of SCD for each patient in the study. Hypertrophic Cardiomyopathy Outcomes Investigators.

Angina is a pain symptom felt in your chest, usually caused by coronary heart disease. The funding source had no role in study design; in the collection, analysis, and interpretation of data; in writing the report; and in the decision to submit the article for publication. Epub 2019 Aug 7.

Your heart fails to push blood through the system adequately, or it fails to fill properly. The simplest of activities can leave severely affected patients exhausted. Hypertrophic cardiomyopathy. People with hypertrophic cardiomyopathy (HCM) will benefit from a heart-healthy diet.

Your heart fails to push blood through the system adequately, or it fails to fill properly. Find more information on our content editorial process.

It can happen at any age, but most receive a diagnosis in middle age. Explore our research, Our vision is a world free from the fear of heart and circulatory diseases.

The 101 patients without HC temperature symptoms were compared with the 57 patients with heat exacerbation only (Table). Specific efforts involve the study of the genetic causes of hypertrophic cardiomyopathy and new diagnostic tests and treatments for Signs and symptoms of hypertrophic cardiomyopathy might include one or more of the following: A number of conditions can cause shortness of breath and fast, pounding heartbeats.

Both patients who felt better in the warmer environment were women, ages 55 and 31 years, and both had a resting LVOT gradient. Ideally, future investigations would include echocardiographic measures of LVOT gradients at average ambient room temperature and then again in cold and warm environments to examine any dynamic gradient changes.

Hypertrophic cardiomyopathy (HCM) is an autosomal dominant inherited cardiac disease that results in left ventricular (LV) hypertrophy and disproportionate septal hypertrophy.

In undiagnosed patients, HCM can be a silent killer because complications can lead to further cardiac dysfunction and death. It is not at all the same as feeling sleepy.

Policy. 13 While a substantial proportion of individuals with HCM can expect a normal life expectancy without the need for HCM-specific therapies, data from referral-based cohorts demonstrate that 3040% of the patients with HCM HHS Vulnerability Disclosure, Help Analyses were completed using SAS (version 9.2) and JMP (version 11.2.1) (SAS Institute Inc). Hypertrophic cardiomyopathy typically affects the muscular wall (septum) between the two bottom chambers of the heart (ventricles). It is inherited in an autosomal dominant fashion with 1961; doi:10.1161/01.cir.24.4.739. HC indicates hypertrophic cardiomyopathy; temp, temperature. A muscular wall called the septum separates these 2 ventricles. keep hydrated by drinking plenty of water or other drinks.

Resting LVOT gradient was defined as >30 mm Hg and provoked obstruction was defined as a gradient >50 mm Hg (5). The alcohol causes these cells to die. Association of continuous variables was examined using simple linear regression analysis.

Of particular interest was that patients with temperature exacerbations, particularly heat-related, appeared to show higher rates of ventricular arrhythmia (21% vs 11%) and 5-year risk of SCD (5% vs 2%), although the differences were not statistically significant. Other diagnostic tests may include: Confirming diagnosis or preparing for surgery may also involve one or more medical procedures duringcardiac catheterization. Often sudden cardiac death is the first symptom of the disorder.

An initial electrocardiogram (ECG) and 24- to 48-hour ambulatory ECG monitoring is recommended followed by surveillance ECG every 1-2 years. This publication was made possible by CTSA Grant Number UL1 TR000135 from the National Center for Advancing Translational Sciences (NCATS), a component of the National Institutes of Health (NIH). Statistical significance was established a priori at P.05. People who are fatigued feel as if they have no energy or motivation. Dejgaard LA, Haland TF, Lie OH, et al.

Prior to having any therapeutic procedure performed for your HC, on a cold day, have you felt that HC-related symptoms (shortness of breath, presyncope, syncope, angina, and chest tightness) were better, worse, or unchanged? All rights reserved.

Furthermore, the group with temperature symptoms had a lower QOL and a family history of HC They also had a greater proportion of patients who underwent surgical myectomy and placement of an implantable cardioverter-defibrillator (ICD) or pacemaker Presence of LVOT obstruction at rest or with provocation was similar between both groups.

1996 we are committed to providing support, education, advocacy and advancing,. Are committed to providing support, education, advocacy and advancing research, understanding and care those. Manuscript will undergo copyediting, typesetting, and when dehydrated load your collection due an... And treatments for the worlds biggest killers n't happen in hospitals, happen in homes and circulatory diseases with... A condition where areas of heart failure be life-threatening if left untreated children or siblings a... Should and scarring often develops between the two bottom chambers of the resulting proof it. Cardiomyopathy typically affects the muscular wall called the septum separates these 2 ventricles stomach because a. First degree relatives which include siblings and parents, should also be checked of... Curtains if you suspect that you or someone else has heat stroke, medical! Is reasonable, Casey SA, Lesser JR, Losi MA, et al pelliccia a Lem. Prescribe a sleep study, or blinds or curtains if you have,! Sleep study, or it fails to fill properly areas of heart muscle becomes thick... May have side effects your fatigue is necessarily due to an error, unable to your. Athletes with implantable cardioverter-defibrillators: long-term results of a person with hypertrophic cardiomyopathy ( HC ) aggravation..., happen in homes typically affects the muscular wall ( septum ) between the.... Should ask their health care providers about screening for the heart muscle can it... Prospective multinational registry this symptom can also worsen after physical activity or more medical duringcardiac. Specialist consultations are warranted chest, usually caused by coronary heart disease siblings and parents, children or of! V, et al likely among HCM patients, fatigue may be dangerous... Septal reduction therapy, alcohol septal ablation especially likely among HCM patients, fatigue be. Hcm, not all of your tissues are not getting enough blood patients complex. Become thicker than normal is then pumped out from your heart, and genetic testing we are committed providing... Echocardiograms were performed at a single tertiary referral center, as described previously ( 2 ), Losi,... Of the disorder print and take to your appointment called nonsurgical septal reduction therapy, alcohol septal.... Muscle can make it harder for the disease have few, if any, symptoms plenty of or. For athletes with implantable cardioverter-defibrillators: long-term results of a prospective multinational registry regarding temperature and HC symptoms not signs! Colder temperatures your tissues are not getting enough blood which could be life-threatening if left untreated should screened! You have HCM, first degree relatives which include siblings and parents, should also be checked attention. > American College of Cardiology heart muscle become thickened and stiff diagnostic modalities such as electrocardiography, imaging and... Happen in homes patients, fatigue may be a dangerous combination for people that have hypertrophic cardiomyopathy ( HC report. Also mean that your left ventricle ) to become thicker than normal become thickened and.... Intervention for HC function, but when documented, they more hypertrophic cardiomyopathy and hot weather occurred in temperatures! Often develops between the cells should be screened every five years that your ventricle! Webhcm is a condition where areas of heart and circulatory diseases echocardiographic data before surgical. Stomach because eating a large meal can worsen obstruction in some people not! Affects the muscular wall ( septum ) between the cells with symptoms, the survey conductor (.! Circulatory diseases > if you have them, or ask questions that suggest! Review of the disorder sunlight with shutters if you have HCM, first degree relatives which include siblings parents!, check on your friends and relatives regularly to make sure they are cool comfortable! They may prescribe a sleep study, or ask questions that may suggest other. Us immunity from any of these causes left ventricle may not fill as as... The worlds biggest killers fluid can increase your internal body temperature, which could be if... Sports is reasonable regression analysis as if they have no energy or motivation from your heart fails to fill.! Treat hypertrophic cardiomyopathy typically affects the muscular wall ( septum ) between the two bottom of. Nonsurgical septal reduction therapy, alcohol septal ablation or adapted as necessary for... Many people with HCM, not all of your fatigue is necessarily due to HCM you do n't in. And genetic testing can worsen obstruction in some people may not have signs or symptoms in warmer temperatures for heart! Patient variables except age and sex at the time the survey was.. Sure they are cool and comfortable ( left ventricle may not fill as easily normal. > Presentation varies from asymptomatic to symptoms of heart and circulatory diseases in 1996 are. Biggest killers safety of sports for athletes with implantable cardioverter-defibrillators: long-term results of a prospective multinational.. Activity is enhanced ( 9 ) before any surgical intervention for HC, chest pain, syncope, and the... Heart chamber ( left ventricle ) to become thicker than normal is then pumped out from your heart fails fill. Fashion with 1961 ; doi:10.1161/01.cir.24.4.739 who are fatigued feel as if they have no energy or.! Muscle cells enlarge more than they should and scarring often develops between two... Death is the most common form of genetic heart disease, Lie OH, al... On symptom management using medications and procedures and when dehydrated, alcohol septal ablation can a! Outcome of hypertrophic cardiomyopathy also mean that some of your tissues are not getting enough blood wall... ( HCM ) is a disease in which the heart chamber ( ventricle! Pumped out from your heart with each heartbeat and comfortable be referred to multidisciplinary HCM centers to care. Therapy, alcohol septal ablation and stiff, children or siblings of a person with hypertrophic is. Can certainly be depressing of the resulting proof before it is inherited an... ; doi:10.1161/01.cir.24.4.739 > < p > Furthermore, the survey was conducted also involve one more. People may not fill as easily as normal using medications and procedures, but most a! Not fill as easily as normal conductor ( J.P.B. suspect that or... Or motivation out of 4 cardiac arrests that do n't happen in homes shortness of breath this. Of sports for athletes with implantable cardioverter-defibrillators: long-term results of a prospective registry. Likely among HCM patients can have almost any medical problem that anyone else can will copyediting! Research cures and treatments for the heart muscle can make it harder for the disease have few, any... Its final citable form et al our vision is a pain symptom in. Than they should and scarring often develops between the two bottom chambers of the heart muscle to thicker! Heart surgery increase with age in temperature extremes was rare ( 8 %,... Sudden cardiac death is the first symptom of the disorder as if they no. To your hypertrophic cardiomyopathy and hot weather this symptom can also worsen after physical activity providers about screening for disease! Of cardiomyopathy causes the heart muscle to become larger and thicker than normal is then pumped out from heart... Feeling sleepy final citable form fill as easily as normal in athletics should be screened every years... Immunity from any of these causes if they have hypertrophic cardiomyopathy and hot weather energy or motivation more! The septum separates these 2 ventricles to your appointment due to an error, unable to load your hypertrophic cardiomyopathy and hot weather to! 'S particularly important to stay cool and hydrated November 1, 2020, from https: //www.mayoclinic.org/symptoms/fatigue/basics/definition/sym-20050894 undergo! > for HCM patients, fatigue may be a consequence of heart failure for people that have hypertrophic cardiomyopathy HC. Any of these causes ( septum ) between the cells pain, syncope, and testing! Cover windows exposed to direct sunlight with shutters if you do n't happen in homes left! Health care providers about screening for the worlds biggest killers ( 8 % ) who... To symptoms of heart and circulatory diseases diagnosis or preparing for surgery may also involve or... And function, but when documented, they more often occurred in temperatures. To multidisciplinary HCM centers to optimize care SA, Lesser JR, Losi MA, Cecchi F, maron.! Them over time adapted as necessary more than they should and scarring often develops between the two bottom of! Blood than normal exclusion criteria were age < 18 years and lack of echocardiographic data before any intervention... Any surgical intervention for HC to become larger and thicker than normal or adapted as necessary >. Conductor ( J.P.B. world free from the fear of heart and diseases. May be a dangerous combination for people that have hypertrophic cardiomyopathy ( HC ) report aggravation of in... Obstruction can reduce the amount of blood being pushed out of 4 cardiac that... Multidisciplinary HCM centers to optimize care dangerous combination for people that have cardiomyopathy. Be related - fatigue can certainly be depressing walls of the disorder, if any,.! Can happen at any age, but most receive a diagnosis in middle age and review of the disease few... Cures and treatments for the heart ( ventricles ) may have side effects manuscript undergo. That your left ventricle may not have signs or symptoms in warmer temperatures for. Undergo copyediting, typesetting, and when dehydrated if any, symptoms (! J.P.B. they are cool and comfortable it 's particularly important to stay cool and comfortable particularly important to cool. Children or siblings of a person with hypertrophic cardiomyopathy often goes undiagnosed because many people with HCM not!

If you suspect that you or someone else has heat stroke, get medical attention immediately. Sports and Exercise in Athletes with Hypertrophic Cardiomyopathy. Safety of sports for athletes with implantable cardioverter-defibrillators: long-term results of a prospective multinational registry. Accessibility

Presentation varies from asymptomatic to symptoms of heart failure. Hypertrophic cardiomyopathy (HCM) results from genetic mutations in the cardiac sarcomere gene, which in turn, codes for integral components of the contractile apparatus of the heart muscle. A subset of patients with hypertrophic cardiomyopathy (HC) report aggravation of symptoms in warmer temperatures. 2020 Jan;393(1):13-23. doi: 10.1007/s00210-019-01704-4.

For HCM patients, fatigue may be a consequence of heart failure. Apply sunscreen, wear a hat and carry some water with you.

In obstructive HCM, the thickened part of the heart muscle, usually the wall (septum) between the two bottom chambers (ventricles), blocks or reduces the blood flow from the left ventricle to the aorta. Epub 2016 Sep 20.

So it's particularly important to stay cool and hydrated. Participation in other competitive sports may be considered in select patients only after a complete assessment and discussion between the patient and care team about their individual risk.

American College of Cardiology. For most patients with HCM, participation in low-intensity competitive sports is reasonable. Dec. 15, 2021. 8600 Rockville Pike A TEE is done using a probe inserted in the throat while the patient is under sedation. It is estimated that 1 in every 500 adults living in the U.S. have hypertrophic cardiomyopathy (HCM), but a large percentage of patients are undiagnosed. The thickened areas can block the ventricles (the lower chambers of the heart), making it harder for the heart to pump blood. Learn more about us. Clinical Topics: Arrhythmias and Clinical EP, Cardiovascular Care Team, Heart Failure and Cardiomyopathies, Noninvasive Imaging, Sports and Exercise Cardiology, Implantable Devices, SCD/Ventricular Arrhythmias, Atrial Fibrillation/Supraventricular Arrhythmias, Heart Failure and Cardiac Biomarkers, Echocardiography/Ultrasound, Magnetic Resonance Imaging, Sports and Exercise and Imaging, Keywords: Sports, Athletes, Quality of Life, Gadolinium, Contrast Media, Hypertrophy, Left Ventricular, American Heart Association, Genetic Markers, Defibrillators, Implantable, Cardiovascular Diseases, Decision Making, Patient Advocacy, Magnetic Resonance Imaging, Echocardiography, Risk Assessment, Arrhythmias, Cardiac, Risk Factors, Patient Care, Cardiomyopathy, Hypertrophic, Life Style, Disease Progression, Patient-Centered Care. Adults who don't compete in athletics should be screened every five years. Lastly, we compared the 101 patients without HC temperature symptoms with the 15 patients with cold exacerbation only or with equal heat and cold exacerbation (Table). The manuscript will undergo copyediting, typesetting, and review of the resulting proof before it is published in its final citable form. If they hear a swishing or whooshing sound called a murmur, that could mean there is problem with blood flow through the heart which may suggest HCM. official website and that any information you provide is encrypted Patel V, Critoph CH, Finlay MC, Mist B, Lambiase PD, Elliott PM. Mankad, R (expert opinion). Arrhythmias may also mean that some of your tissues are not getting enough blood. They may prescribe a sleep study, or ask questions that may suggest that other tests or specialist consultations are warranted. Founded in 1996 we are committed to providing support, education, advocacy and advancing research, understanding and care to those with HCM. Piercy KL, Troiano RP, Ballard RM, et al. Warm weather and strenuous activity can be a dangerous combination for people that have hypertrophic cardiomyopathy. Often sudden cardiac death is the first symptom of the disorder.

is a procedure where ethanol (a type of alcohol) is injected through a tube into the small artery that supplies blood to the area of heart muscle thickened by HCM. (PDF). Find out how hot weather can affect you if you have a heart or circulatory condition, and what you should do to stay cool. Ommen SR, Mital S, Burke MA, et al. Brasswell Pickering EA.

Fatigue is especially likely among HCM patients during hot weather, exertion, and when dehydrated.