Two Marines spent years firing heavy weapons. Then got here complications and hemorrhage. : Pictures

For Michael Lozano, it began with complications that felt “like a needle” passing by means of his cranium.

William Wilcox had complications, too. Then, he says, “my head exploded.”

Each males had surgical procedure to take away a mind arteriovenous malformation, a tangle of irregular blood vessels liable to bleeding.

Each males suspect that their situation was linked to their years as Marine gunners uncovered to repeated blast waves from the anti-tank weapons they fired.

That two Marines who did the identical job in the identical time interval [the 1990s] would each be identified with AVMs is “extremely unlikely,” Wilcox says.

AVMs are estimated to be current in fewer than one in 1,000 folks. There are about 200 gunners within the Marines at any given time.

Mind consultants say the looks of a uncommon mind situation in two gunners might nonetheless be a coincidence. However additionally they say there’s rising proof that repeated publicity to blast waves can alter and harm blood vessels within the mind.

So is it cheap for Lozano and Wilcox to surprise if their AVMs may be associated to the time they spent firing heavy weapons?

“I feel based mostly on the analysis, that is justified,” says Stephen Ahlers, a neuroscientist on the Naval Medical Analysis Command, which has been concerned in a lot of the analysis on how blast waves have an effect on the mind.

“It’d occur,” says Dr. Ibolja Cernak, an skilled on blast harm at Belmont College in Nashville. “We’re gathering an increasing number of info that main blast does trigger vascular adjustments within the mind.”

Related paths

Lozano, 51, and Wilcox, 52, have loads in frequent.

Each had been Marine gunners within the Nineties skilled to fireplace TOW (tube-launched, optically tracked, wire-guided) missiles. Each served at Camp Lejeune in North Carolina and took half in coaching workout routines at Twentynine Palms, California.

Wilcox and Lozano skilled extensively with rocket and missile launchers potent sufficient to disable a tank.

Probably the most intimidating to function was the Shoulder-launched Multipurpose Assault Weapon, or SMAW, which produces a backblast robust sufficient to kill an individual almost 100 ft behind the weapon.

“You could possibly really feel the concussion by means of your entire physique,” Lozano says.

“Think about a 300-pound linebacker hitting you within the chest at full pace,” Wilcox says. “Increase! It rattles your cage.”

Additionally, your mind.

Gunners place their heads simply inches from the explosion that propels a missile or rocket from its launch tube.

The blast wave from these weapons is much less highly effective than the one produced by the type of roadside bomb used to explode Humvees in Iraq and Afghanistan. These bombs usually induced a mind concussion, or knocked army personnel unconscious.

However gunners like Wilcox and Lozano are uncovered to a blast each time they hearth a heavy weapon.

One research achieved by the army discovered that SMAW operators had been uncovered to blast waves greater than twice the extent the army considers dangerous to an individual’s mind in danger.

“Just like the 4th of July on crack”

Wilcox lives in southern Virginia together with his spouse, Cynthia, and their canine, Leia. His mementos from the army embrace the launch tube from an AT4, a Swedish anti-tank weapon system.

Wilcox fired numerous weapons just like the AT4 after becoming a member of the Marines in 1992.

He remembers one coaching train at Twentynine Palms the place his platoon one way or the other obtained an additional allocation of missiles.”

“We exit on this cellular assault course and we’re firing them like loopy,” he says.

“As younger males, it is like Fourth of July on crack. We’re simply loving each minute of this, by no means pondering sooner or later that a few of these issues might probably influence us.”

The complications started when Wilcox moved from Camp Lejeune to Quantico, in Virginia. They saved getting worse even after he left the firing ranges there to turn into a army pc techniques specialist.

“I took Excedrin principally like sweet,” he says.

In 2000, Wilcox left the army and took his pc expertise to the non-public sector. Regardless of the complications, he thrived.

Then in 2014, Wilcox and a few associates go to Penn State for homecoming. They’re watching a band. Wilcox feels a headache approaching.

“I’m going out of the bar. I sit down on a bench. I put my elbows on my knees, and I discover that I am shedding management of my arms,” he says.

His arteriovenous malformation, that tangle of blood vessels in his mind, had begun to bleed. On the time, although, Wilcox was unaware of his situation.

A uncommon situation that may kill

An AVM is the results of irregular development or structural adjustments to blood vessels. Most are regarded as current at delivery, although they will kind in adults.

The situation is harmful as a result of it permits excessive stress blood from the arteries to circulation immediately into comparatively fragile veins. Usually, blood would go from arteries to capillaries, tiny vessels that scale back the stress and turbulence, earlier than reaching a vein.

An intact AVMs could cause complications and seizures, however most go undetected except they bleed.

Wilcox remembers an ambulance journey to a neighborhood hospital then a helicopter journey to the medical middle in Hershey. Emergency surgical procedure eliminated the AVM and doubtless saved his life.

“I spent about three weeks at Penn State Hershey relearning the best way to stroll,” he says. Then he did three months of outpatient remedy.

Wilcox obtained higher, however not sufficient to return to his pc job. The bleed, and the surgical procedure to repair it, left him with an enormous scar, a number of titanium screws in his cranium and reminiscence lapses.

“I do have mind harm,” he says when he thinks he is repeating himself.

However the greatest problem for Wilcox is epilepsy. Regardless of taking medicine, he averages almost one seizure a day.

“It is brutal,” he says. “It wears me out bodily, emotionally.”

For years, Wilcox didn’t join his mind hemorrhage together with his army service. Then a buddy informed him about Michael Lozano, one other Marine gunner with an AVM.

PTSD and complications

Lozano grew up in Ventura, California, skating and browsing. As quickly as he turned 18, he joined the Marine Corps.

That was in 1991. Like Wilcox, he would spend years firing heavy weapons in coaching workout routines.

In 2003, after 9/11, Lozano was despatched to Iraq. There, he fired a few of the identical weapons in fight.

In the midst of one firefight, Lozano additionally obtained knocked mindless by the blast wave from a tank gun.

“I am firing my M16, I look over to the aspect, and this tank simply lights one proper subsequent to us,” he remembers. “You could possibly really feel the blast, the Humvee shook, I’m going sideways, and I am sort of out of it.”

Lozano obtained a medal. He left the army in 2004. Then got here the onerous half.

“I wasn’t the identical,” he says. “America was completely different.”

Lozano started having extreme complications, He additionally had PTSD, which led to numerous anger and alcohol. His first marriage ended.

Finally, he discovered his strategy to a federal legislation enforcement coaching program in Georgia, the place he met his second spouse, Valery.

The complications continued, although. And Valery Lozano, a forensic psychologist and scientific psychological well being counselor, seen different indicators.

“He wasn’t finishing the recordsdata that we would have liked for work,” she says. “It simply obtained to the purpose the place, in my mind I used to be like, , one thing will not be proper.”

Finally, she obtained her husband to a neurologist who discovered an AVM in Lozano’s proper frontal lobe, the identical place Wilcox had his.

Neurosurgeon Michael Lawton, president of the Barrow Neurological Institute in Phoenix, was capable of take away the AVM earlier than it bled. However Lozano’s reminiscence issues and PTSD compelled him to retire.

From struggle to Warhorse Ranch

Right now, Michael and Valery Lozano run Warhorse Ranch close to Steamboat Springs, Colorado. It is a spot they based for veterans and others who’ve skilled trauma.

The ranch makes a speciality of “equine assisted companies,” which may imply merely speaking about your issues within the firm of a number of of the ranch’s 10 horses.

“When somebody begins getting emotional, the horse will decide up on that and he’ll come over and stand proper behind you or put his head in your shoulder,” says Adam Ramos, a Marine from Los Angeles who visits the ranch steadily. “It sort of helps you settle down.”

Michael Lozano says the horses (and one donkey) assist him keep calm as nicely.

He usually wonders, although, about whether or not his time firing heavy weapons led to his AVM.

His medical doctors informed him, “You possibly can both be born with it or you may expertise some type of trauma, which damages the vessels,” he says.

Lozano leans towards trauma. His surgeon, Dr. Lawton, has doubts.

“My preliminary reply is it is in all probability not associated, it is in all probability coincidence,” Lawton says.

Most AVMs are attributable to genetic abnormalities that have an effect on the expansion of blood vessels, he says. Nonetheless, he is intrigued by latest research that recommend blast waves can alter genes within the mind.

“It could be that the extra we research this, we discover that blast harm could possibly be contributing to the identical type of genetic abnormalities,” he says.

At the least one research in rats discovered that repeated blast publicity led to arteriovenous malformations within the mind. That research, like a lot blast analysis, was supported by the army and Veterans Affairs.

There may be robust proof, in each animals and folks, that publicity to even a single blast can injure blood vessels in a manner that initiates a cascade of restore mechanisms.

“After repeated blasts, these restore mechanisms might malfunction,” Cernak says, probably resulting in an AVM.

Going through uncertainty

Michael Lozano and William Wilcox are unlikely to get a definitive reply about what induced their malformed blood vessels, however they’re inspired that scientists are not less than learning how blasts can alter veins and arteries.

Additionally they assist the army’s ongoing efforts to scale back publicity to heavy weapons blasts, particularly in coaching.

In 2024, the Division of Protection issued a memorandum on “managing mind well being dangers from blast overpressure.”

It requires army leaders to determine, observe and conduct cognitive assessments of “excessive threat” personnel, together with those that function anti-tank weapons. It additionally requires extra coaching utilizing simulations as an alternative of dwell ammunition.

As well as, the Marine Corps is shifting from heavy weapons just like the SMAW to lighter weapons that expose operators to much less blast drive.

Wilcox says that is a begin.

“But additionally we have to assist these guys after they get out in the event that they do have an precise mind harm,” he says.