Written for families sitting in a waiting room, by the team that treats this condition.
If you are reading this, a doctor has probably used the words cardiogenic shock and you are trying to understand what they mean. This page explains it in plain language — what it is, what the machines do, why your person might be moved to another hospital, and what to ask the team.
The heart is a pump. Cardiogenic shock means the heart has become too weak to pump enough blood to the rest of the body. When that happens, organs that depend on steady blood flow — the kidneys, the liver, the brain — begin to struggle too.
It is not a heart attack, although a heart attack is one of the things that can cause it. It can also follow heart failure that has worsened, a dangerous heart rhythm, a problem with a heart valve, or a large blood clot in the lungs. Part of what the team is doing right now is working out which cause they are dealing with, because the treatment depends on the answer.
Cardiogenic shock is serious and it moves quickly. That is why the response looks urgent, why there are suddenly many people involved, and why decisions are being made faster than anyone would like.
You have probably found that cardiogenic shock is often fatal — in large studies, roughly 40 to 50 out of every 100 patients have died despite modern treatment.1,2 Those numbers are real, and we are not going to hide them from you. But here is what an average cannot tell you.
It is an average across everyone. It includes patients who arrived after a cardiac arrest, patients much older or much sicker, and patients with other advanced illnesses. It is not a prediction about the specific person you are sitting with.
Organised care changes the numbers. We studied 313 patients treated through this network in New Mexico.3
Your person's team knows things the internet does not. They can see the monitor, the response to treatment over the last few hours, and the direction things are moving. If you want to understand where your person stands, that question belongs to them — and it is a completely reasonable thing to ask.
References: 1 Hochman JS, et al. N Engl J Med 1999;341:625–634. 2 Thiele H, et al. N Engl J Med 2012;367:1287–1296. 3 Yau RM, Mitchell R, et al. Regionalized cardiogenic shock care in rural New Mexico: a single-center experience of 313 patients (2019–2024). Manuscript under review at JSCAI, 2026. Full details on our Results page.
One thing worth knowing. The team may talk about a "stage" — you might hear letters like B, C or D. That is shorthand doctors use to describe how severe the shock is right now, so that everyone caring for your person means the same thing. It can change in either direction. Hearing a letter is not a verdict.
New Mexico is large, and no hospital can offer everything everywhere. So hospitals work together in a network with different levels of capability — much like the trauma system that moves a badly injured patient to the right place rather than the nearest place.
Everything available around the clock — a shock team, heart catheterisation, and the full range of pumps and support machines. This is where the most complex care happens.
Can diagnose, stabilise and treat many causes, including heart catheterisation. Works directly with the hub and transfers when a patient needs support they do not offer.
Recognises shock, starts treatment immediately, and calls the network. These hospitals are not bystanders — the first hours of care usually happen here, and they matter enormously.
If your person is being transferred, it usually means the system is working. The team recognised what was happening and asked for the next level of care. Transfer is part of the plan, not a sign that something went wrong. It is reasonable to ask the team why they are moving your person and what they expect to happen when they arrive.
The Level 1 hub for the New Mexico Cardiogenic Shock Network is the Heart Hospital of New Mexico. If your person is being transferred for advanced heart support, this is often where they are going.
Some of these will be in the room. Seeing them is frightening if you do not know what they do.
A breathing machine. It takes over the work of breathing so the body can put its energy elsewhere.
A small pump placed through a blood vessel that helps push blood out of the heart while the heart rests and recovers.
A machine that takes over for both the heart and the lungs for a period of time. It is used when other support is not enough.
A thin line that measures pressures inside the heart, so the team can see how well it is pumping rather than guessing.
Used if the kidneys have been affected. Often temporary.
The stacked machines on a pole deliver medicines that support blood pressure and help the heart pump. Doses change often — that is normal.
You do not need to know medicine to ask a good question. These are the ones that get useful answers, and any of them is appropriate at the bedside or during rounds.
Ask for rounds. Most intensive care units discuss each patient at a set time each morning. Ask the nurse when rounds happen and whether you can be there. Hearing the plan discussed is often clearer than having it summarised later, and it gives you a natural moment to ask your questions.
Cardiogenic shock is often measured in days to weeks, not hours. People who stay at the bedside continuously tend to be exhausted by the time the hardest conversations arrive.
Ask the team to give updates to one family member who then tells everyone else. It reduces confusion, and the team spends more time on care.
Names, medicines, questions you thought of at 3am. Almost nobody remembers a conversation from an intensive care unit accurately, and that is not a failing.
Ask the nurse to call you if anything changes. They will. Leaving to rest is not abandoning anyone, and you will be more use tomorrow.
This part is for the person who survived, and for whoever is helping them. Leaving the hospital is not the same as being better. It is the start of a different kind of work, and almost nobody is told that in advance.
People often go home expecting to feel like themselves within a week or two. That is rarely how it goes. The heart was badly injured and the body spent days or weeks in bed. Both take time to come back.
Being discharged means you are stable enough to keep recovering somewhere else. It does not mean the recovery is finished.
Even a short stay in intensive care causes real muscle loss. Walking to the end of the driveway can feel like it used to feel to walk a mile. This is physical, not weakness, and it improves over weeks and months rather than days.
Heart function measured during the worst of the illness is not the final answer. For many people it continues to recover afterward. That is why a repeat echocardiogram — an ultrasound of the heart — is part of follow-up: it shows where you are now, not where you were on your worst day.
Shock survivors are followed in a dedicated clinic at the Heart Hospital of New Mexico, rather than being sent back into ordinary care and hoping the pieces connect. The same kinds of specialists who treated you — interventional cardiology, advanced heart failure, and advanced practice providers — see you together, with a repeat echocardiogram to track how the heart is recovering. Ask your care team to arrange it before you go home.
A short questionnaire about day-to-day life — how far you can walk, whether you are short of breath, how much your heart limits what you enjoy. It takes a few minutes and it is not busywork. How patients report feeling is one of the strongest signals of how they will do. Answer honestly, including on bad days.
A supervised programme that rebuilds strength safely, with monitoring, after a cardiac event. It is one of the few things that reliably helps people regain both function and confidence. If nobody has mentioned it, ask whether you are a candidate and how to be referred.
Movement is treatment, not a reward for getting better. It starts smaller than you would like — a few minutes, on the flat, most days — and builds. Steady and boring beats heroic. The common mistake is doing too much on a good day and nothing for the next three.
What you eat affects how hard your heart has to work, particularly salt and fluid. Small consistent changes matter more than dramatic ones. Ask whether you should be watching salt, whether there is a fluid limit, and whether to weigh yourself daily — sudden weight gain is often the first sign of fluid building up, before you feel it.
You will likely go home on several. These are not maintenance — for many people they are what allows the heart to keep recovering, and there is strong evidence behind the particular combination. Doses usually go up over the first months as you are re-checked; that is the plan working, not a sign of getting worse. If one makes you feel unwell, tell your team rather than stopping it on your own.
Many survivors have gaps in their memory of the hospital, or vivid and disturbing memories of things that did not happen. Bad dreams, anxiety, trouble concentrating, and a jumpy startle response are common after critical illness. So is feeling low at exactly the moment everyone expects you to feel grateful.
This has a name — post-intensive care syndrome — and it is recognised, common, and worth treating. Families get it too. The person who sat in the waiting room may struggle more afterward than the person in the bed. Tell someone on your care team rather than waiting for it to pass on its own.
When is my follow-up appointment, and who is arranging it?
When is my repeat echocardiogram?
Am I a candidate for cardiac rehab, and how do I get referred?
Should I be watching salt or fluids, and should I weigh myself daily?
Which medications must I not stop, and who do I call about side effects?
What symptoms mean call the office, and what means go straight to an emergency room?
Who do I call after hours if I am not sure?
This page is general information, not medical advice about your family member. The team caring for them knows their situation — please ask them. If you have questions about the network itself, you can reach us at admin@nmcsn.org.
