It came on like a thunderclap.
One moment you were fine. The next, you were hit by the worst headache of your life. People often describe it like being struck in the back of the head with a bat. It reached full, blinding intensity in seconds. Maybe you vomited. Maybe your neck got stiff. Maybe light hurt your eyes, or you felt faint, or briefly passed out. Maybe, in the weeks before, you had a sudden severe headache that came and went, a warning you did not understand. Something was bleeding in your brain.
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Article written by Brendan Lupetin, Esq. Brendan is a managing partner in the law firm of Lupetin & Unatin, a medical malpractice law firm located in Pittsburgh and serving Western Pennsylvania.
Our practice is limited to high-value catastrophic cases because that is where we can do the most for our clients and for patient safety.
So you got help. You went to the ER. You described the sudden, explosive headache. And maybe they did not take it seriously enough. Maybe they called it a migraine, a tension headache, or a neck strain. Maybe they gave you pain medicine and sent you home. Maybe they did a CT scan, said it was normal, and never did the spinal tap that catches what a CT can miss. The whole time, blood from a leaking aneurysm was pooling around your brain.
By the time someone recognized it, the damage may have been done. A subarachnoid hemorrhage can kill, or cause devastating brain injury, especially if the aneurysm bleeds again. Maybe you survived but are forever changed. Maybe you are reading this because someone you love was sent home and did not survive. And you cannot stop asking: why didn’t they catch this in time?
That question matters. A subarachnoid hemorrhage is one of the most time-sensitive emergencies in medicine, and it is one of the most tragic to miss because catching it early saves lives. When it is missed or treated too slowly, the harm is often catastrophic and often preventable. This article explains the warning signs that a subarachnoid hemorrhage was missed. It explains the serious harm a delay can cause. And it explains what you can do next. If any of this sounds like your story, Lupetin & Unatin is here to help.
What a Subarachnoid Hemorrhage Is, in Plain Terms
A subarachnoid hemorrhage, or SAH, is bleeding into the space around the brain, just under the lining that covers it. Most often the cause is a ruptured brain aneurysm, a weak, balloon-like spot on a blood vessel that bursts and leaks blood around the brain.
This is a true emergency. As the Cleveland Clinic explains, a subarachnoid hemorrhage is a life-threatening type of bleeding that needs immediate medical care, and a ruptured aneurysm can quickly become deadly. The blood irritates the brain, raises pressure inside the skull, and can cut off blood flow. Treatment means finding and sealing the aneurysm, usually with surgery or a procedure threaded through the blood vessels, before it bleeds again.
The key word is time. An aneurysm that has bled once is at high risk of bleeding again, and a second bleed is often far worse. That is why a fast diagnosis matters so much. The first test is usually a CT scan of the head. If the CT is negative but the story still points to a bleed, the standard of care often calls for a spinal tap, also called a lumbar puncture, to check the spinal fluid for blood.
Why a Subarachnoid Hemorrhage Gets Missed
Here is the central trap. Headaches are extremely common, and almost all of them are harmless. A subarachnoid hemorrhage hides inside that common complaint. A busy provider may see a patient with a headache and assume a migraine, a tension headache, or a neck strain, without asking the key question: did this headache come on suddenly and reach its worst within seconds?
But doctors are trained to recognize the warning pattern. A sudden, severe “thunderclap” headache that peaks almost instantly is the hallmark of SAH. As the medical literature shows, the most common mistake leading to misdiagnosis is simply failing to get a head CT, and a CT scan loses sensitivity as time passes, so a negative scan does not always rule out a bleed. When the CT is negative but suspicion remains, a spinal tap should follow. When a doctor sends a thunderclap-headache patient home without this workup, a deadly bleed can be missed.
Here are the common reasons a subarachnoid hemorrhage gets missed:
- A sudden, severe headache was treated as a migraine or tension headache.
- A stiff neck and headache were called a muscle strain.
- No head CT was ordered for a thunderclap headache.
- A negative CT ended the workup, with no spinal tap when one was needed.
- A “warning” headache in the days or weeks before was not taken seriously.
- The patient looked well, so the danger was underestimated.
The Warning Signs Doctors Are Supposed to Recognize
These are the warning signs of a subarachnoid hemorrhage. They are the same signs a careful provider should act on fast.
- A sudden, severe “thunderclap” headache. The worst headache of your life, reaching peak intensity within seconds to a minute.
- A headache that feels different from any before. Not your usual headache or migraine.
- Nausea and vomiting. Often along with the headache.
- A stiff neck. From blood irritating the lining of the brain.
- Sensitivity to light. Often present.
- Brief loss of consciousness, fainting, or a seizure. Serious warning signs.
- A “sentinel” or warning headache. A sudden severe headache in the days or weeks before, which can signal a small early leak.
When these signs are present, a careful provider should work the patient up for a brain bleed, starting with a CT and, when needed, a spinal tap. When these signs were brushed off, the diagnosis may have been missed.
Signs Your Subarachnoid Hemorrhage Was Missed
Below are the red flags. If you recognize several of these, it may be worth a closer look at the care that was given.
Your Sudden, Severe Headache Was Called a Migraine
A thunderclap headache that peaks in seconds is the hallmark of a brain bleed, not a typical migraine, which builds over time. If you had this kind of sudden, explosive headache and it was labeled a migraine without a workup, that is a major red flag.
A Stiff Neck and Headache Were Called a Muscle Strain
Blood around the brain often causes a stiff neck. If your stiff neck and headache were dismissed as a muscle strain, a bleed could have been missed.
No CT Scan Was Done
For a sudden, severe headache, a head CT is the first step. If no scan was done and you were sent home, a brain bleed could have gone undetected.
A Normal CT Ended the Workup, With No Spinal Tap
A CT can miss a bleed, especially as hours pass. When the CT is negative but the story still fits, the standard of care often calls for a spinal tap. If a normal CT ended your workup when a spinal tap was needed, that gap could be a failure in your care.
A “Warning” Headache Was Ignored
Many people have a sudden severe headache in the days or weeks before a major bleed, a sign of a small early leak. If you reported such a headache and it was brushed off, a chance to catch the aneurysm may have been lost.
You Were Sent Home and Suffered a Catastrophic Bleed
You go in with a terrible headache. They send you home. Hours or days later, the aneurysm bleeds massively, causing stroke, coma, or death. A proper workup might have caught it in time.
You Suffered Lasting Harm
Sometimes the clearest sign that something went wrong is the outcome itself. People whose aneurysm is found and treated before a major bleed often do well. When the diagnosis comes too late, the damage can be devastating. The next section covers the serious harm a delay can cause.
The Serious Harm a Subarachnoid Hemorrhage Delay Can Cause
When a brain bleed is not found and treated fast, the aneurysm can bleed again and the brain can be permanently injured. The longer the delay, the more harm it does. Here are the serious injuries and outcomes a missed or delayed diagnosis can cause.
Death. This is the gravest risk. A subarachnoid hemorrhage can be fatal, and a second bleed after a missed first bleed is often deadly. If you lost a loved one this way, your family may have a wrongful death claim.
Permanent brain damage. Bleeding and pressure can permanently injure the brain, affecting memory, thinking, speech, and personality.
Stroke. The bleed can cut off blood flow and cause a stroke, leading to paralysis, weakness, and lasting disability.
Paralysis and weakness. Brain injury can leave one side of the body weak or paralyzed.
Loss of speech and language. Survivors may struggle to speak or understand words.
Seizures. A brain bleed can cause a lasting seizure disorder.
Hydrocephalus. Blood can block the flow of fluid in the brain, causing dangerous pressure that may need a shunt.
Cognitive and emotional changes. Many survivors have lasting problems with memory, focus, mood, and daily function.
Lasting disability and lifelong care. Severe bleeds can leave a person unable to return to work or live independently.
Emotional trauma. Surviving a brain bleed, or losing a loved one to one, leaves deep wounds. Many people and families struggle with anxiety, depression, and grief for years.
Many of these outcomes share one thing in common. They often trace back to time that was lost. Time that doctors had to act, and did not use.
When a Missed Diagnosis Becomes Malpractice
Not every bad outcome is malpractice. Doctors do not have to be perfect, and headaches are common. But doctors do have to meet a basic standard. That standard is the level of care a careful doctor would have given in the same situation.
To have a malpractice case, a few things usually need to be true. First, there was a doctor-patient relationship. Second, the care fell below the accepted standard. Third, that failure caused real harm. Fourth, the harm led to losses, such as medical bills, lost income, the loss of a loved one, or pain and suffering.
Subarachnoid hemorrhage cases often turn on a few key questions. Did the patient describe a sudden, severe, thunderclap headache? Was a CT ordered? When the CT was negative, was a spinal tap done? Was a warning headache ignored? When the signs were there and no one acted, that delay can be the heart of a strong case. You can read more on our thunderclap headaches and brain aneurysms page, written by our firm. Proving it takes work, records, and the right medical experts. That is where Lupetin & Unatin comes in.
What You Should Do Now
If you think your subarachnoid hemorrhage, or that of a loved one, was missed, take these steps.
Get the medical records, including all imaging. You have a right to them. The CT images, the notes about your headache, and the timeline are often the heart of the case.
Write down what you remember. Note exactly how the headache started and how fast it peaked. Note what you told the doctors, what tests were done, and how long everything took. Note any earlier warning headache. Memory fades, so do this soon.
Do not wait too long to ask questions. Every state has a deadline for filing a malpractice claim. In Pennsylvania, that deadline is usually two years. There are some exceptions, but the clock can run out fast. Acting early protects your rights.
Talk to a lawyer who knows these cases. Subarachnoid hemorrhage claims are complex. They need medical experts and a deep understanding of emergency and neurological care. A general lawyer may not be the right fit. A firm focused on medical malpractice will know what to look for.
How Lupetin & Unatin Can Help
We are Lupetin & Unatin. We are a Pittsburgh medical malpractice firm. We focus on serious injury and death from medical errors. Cases involving missed and delayed diagnosis of brain bleeds and ruptured aneurysms are at the heart of our work. We know how these errors happen. We know how hospitals defend them. And we know how to hold them accountable.
We have handled catastrophic brain injury and wrongful death cases, including missed brain aneurysms. We understand how a treatable warning leak can become a fatal bleed when the signs are missed and the clock runs out. We know the medicine, and we know how to prove what a careful doctor should have done.
We take a small number of cases so we can give each one real attention. We work on contingency. That means you pay nothing up front. You pay nothing unless we win. There is no risk in finding out if you have a case.
You deserve answers. You deserve to know if this suffering or loss could have been prevented. A short conversation can tell you a lot.
Frequently Asked Questions
You may not know for sure on your own. That is normal. The answer is usually in the medical records. We look at how you described your headache, whether a CT was done, whether a spinal tap followed a negative CT, and how long everything took. The law asks what a careful doctor would have done with the same information, especially with a sudden, severe headache. A careful review tells us whether the care fell below the standard. That review costs you nothing.
In most cases, the deadline in Pennsylvania is two years. For a wrongful death claim, that period generally runs from the date of death. Some exceptions can change the deadline. These rules are tricky. The safest move is to call us soon so we can protect your rights before time runs out.
Nothing up front. We work on contingency. That means we only get paid if we win money for you. There is no fee to talk with us and no fee to review your case. If we take your case and do not win, you owe us no attorney fee. This lets you seek justice without financial risk.
Reach Out Today
If any part of this article sounds like your story, please contact Lupetin & Unatin. Tell us what happened. We will listen. We will review the records. We will tell you honestly whether we think there is a case.
A subarachnoid hemorrhage can take a life in a matter of hours. A missed diagnosis can change everything. If a hospital or doctor failed you or someone you love, you have the right to seek justice. Let us help you find out what really happened.
Call Lupetin & Unatin today for a free, no-pressure review of your case.