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Donlin M. Lengthy, a pioneering neurosurgeon whose mind analysis helped hundreds of thousands of sufferers handle ache and who collaborated on the invention of an implantable pump to ship insulin to folks with diabetes, died on Sept. 19 close to Gettysburg, Pa. He was 89.
The trigger was issues of a fall he suffered whereas fly-fishing for trout in a stream close to his weekend residence, his daughter Dr. Kimberly Web page Riley mentioned. Dr. Lengthy was a resident of North Baltimore and chairman of the neurosurgery division at Johns Hopkins College for 17 years.
Along with the insulin pump, Dr. Lengthy, as an professional in relieving power ache, had a collaborative hand in introducing, in 1981, the primary battery-powered, rechargeable, implantable digital system to stimulate peripheral nerves to alleviate ache, according to Johns Hopkins. The system, often called TENS, for transcutaneous electrical nerve stimulator, turned a normal medical device.
As an achieved practitioner of cranium base surgical procedure, Dr. Lengthy was additionally instrumental within the first profitable separation of dual infants born conjoined on the head. The operation, carried out in 1987, concerned 70 surgeons, nurses and assistants and lasted 22 hours.
The twins’ brains had been separated, and one of many infants’ skulls was closed by Dr. Benjamin S. Carson, whom Dr. Lengthy, the founding chairman of the division of neurosurgery at Johns Hopkins College in Baltimore, had recruited to the college. The operation, at Johns Hopkins Hospital, introduced Dr. Carson instant fame. He was later a Republican presidential candidate and secretary of the Division of Housing and City Improvement underneath President Donald J. Trump.
Dr. Lengthy, Dr. Carson’s mentor, closed the opposite boy’s cranium through the operation.
Drs. Lengthy and Carson had only one hour to perform closing separation, to reconstruct the divided mind cavities and veins, and to restart the hearts within the infants, each of them boys.
Dr. Patrick J. Connolly, the chief of neurosurgery at Virtua Mount Holly Hospital in New Jersey and a professor on the Perelman Faculty of Drugs on the College of Pennsylvania, hailed Dr. Lengthy’s contributions to neurosurgery in addition to to 2 different specialties, the therapy of vascular and spinal illnesses.
“We use steroids to deal with mind edema day-after-day in neurosurgery because of Dr. Lengthy’s analysis within the early ’70s,” he mentioned, “and his contribution to spinal twine stimulation has permitted aid of struggling for hundreds of thousands of individuals during the last 50 or so years.”
When Dr. Lengthy arrived at Johns Hopkins in 1973, the neurosurgery division had solely 5 full time surgeons, performing some 125 surgical procedures a 12 months. By the point he retired in 2000, the full-time employees had greater than doubled and the variety of operations had soared to greater than 3,500 yearly, carried out at Johns Hopkins Hospital and Johns Hopkins Bayview Medical Middle.
He was instrumental in Johns Hopkins’ determination to erect the Adolf Meyer Middle in 1981, uniting the departments of neurosurgery, neurology and psychiatry in a single constructing and facilitating collaboration amongst them.
Dr. Lengthy’s analysis into power ache ready him to assist design the transcutaneous electrical nerve stimulator at Johns Hopkins. Later within the Eighties, he collaborated with colleagues on the Johns Hopkins Utilized Physics Laboratory to invent the implantable treatment pump to deal with diabetic sufferers.
Lots of the surgeons skilled throughout Dr. Lengthy’s tenure at Johns Hopkins had been employed as full professors, as leaders of neurosurgery departments at hospitals and universities, and as heads {of professional} associations.
“Neurosurgeons in all places stand on his shoulders,” Dr. Connolly mentioned.
Donlin Martin Lengthy Jr. was born on April 14, 1934, in Rolla, Mo., within the southwest Ozarks. He was a descendant of New England Quakers, one in all whom, in response to a Johns Hopkins biography, had blazed a path by means of the Cumberland Hole within the Appalachians alongside Daniel Boone. His father, Donlin Sr., was a chemist for the state well being division. His mom, Davine (Johnson) Lengthy, was a instructor.
Raised in Jefferson Metropolis, Mo., Dr. Lengthy earned undergraduate and medical levels, in 1955 and 1959, from the College of Missouri. He acquired a doctorate in neuroanatomy in 1964 from the College of Minnesota, the place he had deliberate to turn out to be a cardiac surgeon earlier than altering course and specializing in neurosurgery, impressed by the work of Dr. Lyle A. French in that subject.
As residents at Minnesota, he and Joseph Galicich performed analysis that led to using steroids to cut back postoperative mind swelling.
Dr. Lengthy advised The New York Times in 1987 that “power ache is the weakest space of recent medication and the least properly managed of any criticism or illness.”
He’s survived by his spouse, Harriett (Kallenbach) Lengthy; one other daughter, Elisabeth Service provider Lengthy; a son, David; and 4 grandchildren. His three youngsters have all taught or labored as directors at Johns Hopkins.
Remembered for his equanimity, his position as a mentor and his can-do ardour, Dr. Lengthy typically advised his youngsters and grandchildren, “There isn’t any strive, solely did and didn’t.”
Bernard Mokam contributed reporting.
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