The heart has an extremely high oxygen consumption, accounting for about one-tenth of the body’s total oxygen consumption. The coronary arteries are the lifelines that supply blood to the myocardium. When these vessels are gradually clogged by lipid plaques, blood flow decreases, and the myocardium begins to suffer from hypoxia. At first, there is only chest tightness when going uphill. Later, walking on level ground also causes breathlessness. Eventually, even sitting quietly feels like there is a stone pressing on the chest. Many people do not realize that their coronary arteries are already 70% to 80% blocked until their first angina attack. The hyperbaric oxygen chamber delivers more oxygen to the ischemic myocardium, promotes myocardial repair, and enhances cardiac function.
What is Coronary Heart Disease?
An adult heart beats approximately 100,000 times per day, over 30 million times per year, and nearly 3 billion times over a lifetime. Each contraction pumps oxygen-rich blood to the entire body, while the heart itself also requires an uninterrupted oxygen supply to sustain this perpetual motion. The full medical name for coronary heart disease is coronary atherosclerotic heart disease. The coronary arteries are the blood vessels that supply the heart itself. Atherosclerosis refers to the accumulation of lipid plaques on the inner walls of blood vessels. Coronary heart disease is the condition in which these plaques narrow and harden the vessels, depriving the myocardium of adequate blood and oxygen.
How slow is this process? It often takes ten or even twenty years to develop to the point of being noticeable. But its consequences are swift: angina, arrhythmias, myocardial infarction, heart failure—each more urgent and more severe than the last.
What coronary heart disease patients fear most is oxygen consumption. Climbing stairs, walking quickly, emotional excitement, and overeating—these ordinary activities for healthy people can become the last straw for those with coronary artery stenosis. When the myocardial oxygen demand exceeds the coronary oxygen supply, angina occurs. The crushing chest pain and the aching sensation radiating to the left shoulder are the heart’s most intense cries for help.
Traditional treatment for coronary heart disease follows three pathways: medication, stents, and bypass surgery. Medications dilate blood vessels, lower heart rate, and reduce myocardial oxygen consumption. Stents prop open narrowed vessels. Bypass surgery creates an alternate route around the blocked section. Each of these pathways has its own value, but they share a common limitation: none truly solves the problem of myocardial oxygen utilization. Stents may open vessels, but microcirculatory oxygen delivery remains impaired. Medications may lower blood pressure, but already ischemic myocardial cells continue to suffer from chronic hypoxia. Hyperbaric oxygen therapy finds its place precisely in this gap. It does not replace medication or surgery, but it adds oxygen to every ischemic myocardial cell.
How Does a Hyperbaric Oxygen Chamber Treat Coronary Heart Disease?
The logic of hyperbaric oxygen therapy for heart disease is not simply breathing more oxygen, but using physical laws in a pressurized environment to force oxygen into the blood. Consider a patient with stable coronary heart disease who still experiences chest tightness after daily activities, with little improvement from medication. After evaluation by a doctor, he begins using a home hyperbaric oxygen chamber at 1.5 ATA for 60 minutes daily.
HBOT increases oxygen in the blood
In a hyperbaric environment, the amount of oxygen physically dissolved in plasma can increase several-fold. This extra oxygen does not need to rely on already saturated hemoglobin for transport but travels directly with the plasma to all parts of the body, including the ischemic myocardial regions blocked by plaques and impaired by microcirculatory dysfunction.
HBOT promotes the development of collateral circulation
When the main coronary arteries narrow, the heart naturally tries to grow backup vessels. This is called collateral circulation. HBOT can stimulate the release of vascular endothelial growth factor, promoting angiogenesis in ischemic areas. This is equivalent to helping the heart create small alternative routes when the main road is congested.
HBOT reduces myocardial inflammation and oxidative damage
The essence of myocardial ischemia is not only hypoxia, but also oxidative stress and inflammatory storms caused by ischemia-reperfusion. HBOT can inhibit the release of pro-inflammatory factors, enhance antioxidant enzyme activity, and protect vascular endothelial cells from damage.
HBOT improves cardiac function and hemorheology
Clinical studies have shown that HBOT combined with conventional drug therapy can significantly improve ejection fraction in coronary heart disease patients, reduce blood viscosity, and improve microcirculation.
| Study Condition | Treatment Protocol | Overall Efficacy Rate (HBOT vs Control) | Key Improvement Indicators |
| Unstable Angina | HBOT + conventional drugs vs conventional drugs | 94.67% vs 82.67% | Angina frequency, duration, total myocardial ischemia burden significantly reduced |
| Post-PCI in CHD | HBOT + atorvastatin vs atorvastatin | Study group superior to control group | Improved vascular endothelial function, optimized inflammatory and coagulation indicators |
| Coronary Heart Disease | HBOT + atorvastatin vs atorvastatin | 93.33% vs 82.67% | Blood viscosity, fibrinogen, hs-CRP significantly decreased |
| Dilated Cardiomyopathy with Heart Failure | HBOT + anti-heart failure therapy vs anti-heart failure therapy | 94.00% vs 78.00% | Cardiac reserve function, pulmonary function significantly improved, NT-proBNP decreased |
References:
Tian M, Du W, Yang S, et al. Application and progress of hyperbaric oxygen therapy in cardiovascular diseases. Medical Gas Research, 2025, 15(3): 427-434.
What are the Advantages of a Home Hyperbaric Chamber?
Cardiac rehabilitation is a long road. It is not resolved by a few days of hospitalization or stent placement, but requires months of continuous management: medication adjustment, lifestyle intervention, regular follow-ups, and oxygen therapy support. Traditional hyperbaric oxygen chambers are mostly concentrated in hospitals. If patients want to undergo HBOT, they have to travel to the hospital repeatedly. For coronary heart disease patients, especially elderly individuals with impaired cardiac function, this cost is too high. Registration, waiting, changing clothes, entering the chamber, and returning home—half a day is gone. The back-and-forth journey itself is a burden on the heart.
The emergence of home hyperbaric chambers has changed all of this. Kingshare, as an original home hyperbaric chamber factory, has over a decade of manufacturing experience, a self-owned production base of over 2,000 square meters, and products sold both domestically and internationally. From rigid chambers to soft chambers, pressure from 1.3 to 2.0 ATA can be customized. Quality is fully controlled across the entire chain, and pricing is genuine and transparent, without middleman markups. For those requiring long-term management and repeated use, the stability of direct-from-factory supply is itself a form of reassurance.
Compared with traditional medical hyperbaric chambers, the greatest value of home chambers lies in the continuity of home management. Heart disease patients need stable, sustained oxygen therapy support, not intermittent bursts. With a home hyperbaric chamber, there is no need for appointments, no waiting in lines, no traveling in freezing winter or scorching summer. Patients can complete each 60-minute oxygen therapy session in their own living room, in their own comfortable way.
The chamber is equipped with a high-concentration negative ion system, making every breath feel like being in a forest after rain. The water circulation heating and humidification system eliminates the dryness and cold of traditional chambers. The BIBS mask system improves oxygen utilization efficiency, making every breath more effective. The chamber can also be customized with red light therapy, which promotes cellular metabolism and accelerates tissue repair, complementing hyperbaric oxygen therapy.
We have abandoned the square, cold industrial design of traditional oxygen chambers and adopted a cute, rounded shell shape inspired by the Hobbit’s fairytale cottage. It is no longer a cold device, but a personal rest station for the soul. The warm, bright interior breaks down the distance between the machine and the user. For heart disease patients who are already anxious about hospitals, stepping into this little cottage brings a sense of being gently held, a feeling of safety.
Real Case: A Rebirth of Breathing Again
The value of hyperbaric oxygen therapy in the field of heart disease lies not only in maintenance during the chronic phase, but also in protection during postoperative rehabilitation. Dave suffered from severe ischemic cardiomyopathy. His heart’s pumping function was only about half of normal, with a left ventricular ejection fraction of just 28%. He found it difficult even to walk from the living room to the kitchen at home, let alone go out for a walk or engage in any light activity. He was taking multiple medications, including diuretics and ACE inhibitors, but the results were consistently unsatisfactory. When conventional treatment reached a bottleneck, the medical team introduced hyperbaric oxygen therapy as an adjunctive option.
After the 10th treatment, his left ventricular ejection fraction increased from 28% to 32%. Although this number may seem small, for a failing heart, an additional 4% pumping capacity means more oxygen supply to the body.
After the 20th treatment, evaluation showed his ejection fraction had further increased to 35%. He no longer needed diuretics to manage fluid retention. What delighted him and his family even more was that he could walk out of the house again and take slow walks in the community.
After completing the full course of treatment, his ejection fraction eventually reached 38%—a full 10 percentage point improvement in cardiac function. The doctor said: “The degree of improvement is surprising, and what is even more gratifying is that the patient has recovered to the point where he can walk normally.”
Every heartbeat is the body’s craving for oxygen. When the coronary arteries narrow and blood flow slows, the heart runs in thin air, gasping but unable to stop. Hyperbaric oxygen therapy may not end this race, but it gives the heart an extra breath of oxygen, allowing ischemic myocardium to hold on a little longer, collateral circulation to grow a little more, and every heartbeat to have a little more strength.
Kingshare is a hyperbaric oxygen chamber factory with 10 years of production experience. We provide turnkey services from design to delivery. If you have any needs for hyperbaric oxygen chambers, please contact us.
