“Your mother looks better, doesn’t she?”
She shrugged impatiently.
“Soon, soon,” I assured her.
A half hour later, working through my backlog of patients, I spied my redhead returning from the scanner. I rang up the radiologist. “Say, Russ, could you take a quick look at this scan? Story is, her husband pulled on her arms two days ago. Claims she’s numb from the neck down, but I’m not convinced. Just tell me it’s normal and we can send her home.”
“Sure,” came the answer. I waited on the phone for a good 45 seconds. Then there was a shout: “She has a subarachnoid!”
“Wha...?!”
“Pull up the head scan. Subarachnoid.”
On the radiology screen in the emergency department, a white blush highlighted gray whorls of brain. “Jesus,” I muttered. “She said it was her neck.”
“It’s a bleed,” Russ insisted urgently.
Subarachnoid hemorrhage springs from a leak in one of the delicate arteries that snake between the brain and the arachnoid membrane, the brain’s cellophane-like covering. The culprit is a berry aneurysm, a slight (one-eighth to one-third of an inch) ballooning of the artery in the circle of Willis, a network of arteries at the base of the brain. When the balloon ruptures, the sudden jet of blood typically triggers a thunderclap headache along with vomiting and loss of consciousness. Smaller leaks, however, may cause only confusion or back pain (which is why emergency physicians see subarachnoids lurking behind every headache or case of the dizzies). Often the instigating event is sudden exertion, like lovemaking. The textbooks, I learned long ago, have a term for this: coital subarachnoid. A classic diagnosis.
Instead of fleshing it out with probing questions, I had let my patient’s squirrelly symptoms and dyed hair throw me off the scent, interpreting each new finding as confirmation of my original bias. I hustled back to the patient’s room and asked the daughters, “When she felt bad that night, did she have any headache at all?”
The family conferred.
We had to hurry. If patients survive the first arterial leak, chances are fearsomely high that a second one, days or weeks later, will kill them.
“Maybe some headache, yes. But it went away.”
“Any vomiting?”
“Once or twice, but then it stopped.”
The nuggets had been there; the doctor just hadn’t panned thoroughly enough.
Everything clicked into place: Hyperventilation lowers pressure inside the skull by constricting blood vessels. The Lamaze breathing had made her feel better. The numbness? Probably due to the blood irritating her brain and spinal cord.
Now we had to hurry. If patients survive the first arterial leak, chances are fearsomely high that a second one—days or weeks later—will kill them.
I pulled the daughters out of the room. And hoped to God I hadn’t come across as dismissive before. “Your mother has blood in her brain. A vessel has burst. She might need an operation.”
They covered their mouths.
“We need to send her uptown immediately,” I said, as we arranged her transport to a hospital with an angiography suite.
The rise of interventional radiology has radically changed the treatment of brain aneurysms. The first step is still an angiogram, in which radiopaque dye is injected into the cerebral arteries so they can be fluoroscoped—the image appears as black tendrils against a ghostly white background—and the leak pinpointed. In the old days (the mid-1990s), brain surgery came next. A piece of the skull was lifted, the brain burrowed into, and a clip fastened across the neck of the aneurysm. Nowadays, once the angiogram finds the defect, a tiny platinum coil can be threaded up the vessel and into the aneurysm. There, the coil spawns a clot that seals the opening. Coiling, compared with surgery, halves the rate of post-op seizures, according to a study in The Lancet, though it does have a higher rebleed rate.
My patient’s aneurysm bulged off the top of the right carotid artery. The coil went in smoothly and plugged the defect. Some subarachnoid patients have brain artery spasms caused, it is thought, by the irritating effect of blood outside the arteries. Luckily, my patient had none of those. She went home with her daughters, anxiety-free, a few days later.
As for myself, I could only paraphrase an old adage: If you can’t be smart, at least be lucky.
Tony Dajer is chairman of the department of emergency medicine at New York Downtown Hospital in Manhattan. The cases described in Vital Signs are real, but names and certain details have been changed.
