The phrase "heart collapsed" is a grammatically correct and usable in written English.
It is commonly used to describe a feeling of despair or sadness. For example, "When she heard the news, her heart collapsed".
After deep anesthesia, blood was collected by cardiac puncture; it was withdrawn slowly to prevent the heart collapsing and was processed to serum by allowing it to clot for at least 30 min at room temperature, followed by centrifugation at 2500g for 15 min at 4 °C.
Those three words are the actual sound of my heart collapsing in on itself.
For the brain, not only the inflow pressure but also the venous and cerebral spinal fluid pressures decline in proportion to the vertical distance above the heart [ 1, 41– 44], and veins above the heart collapse because the surrounding tissue pressure is greater than the pressure inside the veins, so creating a Starling resistor [ 45].
He had selected the stops when he had what was probably a heart attack, collapsed and fell off the bench.
Sofia Harman raised the alarm when her mother, Patricia Hannington – who has a rare heart condition, collapsed at the family home in Clacton, Essex.
NHS England took on the work after the last attempt to rationalise children's heart surgery collapsed amid lawsuits and recriminations.
The variation in symptoms can make it hard for doctors to figure out what is wrong and lead them to mistake the problem for a heart attack, collapsed lung or ulcer.
Mr. Minard had a heart attack, collapsed and died while climbing with his daughter Julia in a guided party up Disappointment Cleaver, a rocky outcrop bordering the Emmons Glacier.
Neither the descending aorta nor the heart was collapsed.
The next morning he complained of heart trouble, collapsed shortly after lunch and was taken to the hospital.
