Chapter 1005: 984 Discovery of the Dissected Experimental Subject (Alliance Leader

Big Pig Trotter's intelligent and humane Zheng Ren has experience, and moreover this is a surgery that has been assigned a mission. So after entering the System Space, Zheng Ren had no doubts and directly selected to purchase Surgical Training Time.

The System Operating Room rose up from the ground, and the experimental subject lay on the operating table.

Zheng Ren began Shou Bing.

For Zheng Ren, whose Interventional surgery level is at the pinnacle of one step, the renal artery stent is just a very simple Shou Bing.

Puncture, Super-selective, compared to the renal artery and grade 4-5 small arteries, it's like driving on an eight-lane road versus the bumpy small road that basically doesn't exist in a tropical jungle.

Super-selective went smoothly, the stent was deployed and expanded.

Shou Bing is just this simple.

But, the completion rate of Shou Bing actually didn't even reach 50%; words appeared on the System Panel: the experimental subject died 58 hours after surgery.

For this result, Zheng Ren was not surprised.

Because the process of this Shou Bing and the process of Shou Bing performed by the Mayo Clinic doctor in the video are exactly the same, they both performed only the most basic Shou Bing.

Shou Bing ended, the experimental subject died, and Zheng Ren began to dissect.

This is what Zheng Ren zhen truly wants to do.

The renal artery structure underwent obvious variation, starting from the initial segment, there appeared a stenosis of about 5 cm. Renal artery stenosis leads to blood pressure increase, which is called renal vascular hypertension.

Because decreased intrarenal perfusion pressure, renal parenchyma disease, and renin-secreting cell tumors can all cause juxtaglomerular cells to release large amounts of renin, increasing angiotensin II activity, leading to constriction of systemic small artery walls and thus producing hypertension.

Renin and angiotensin II can also stimulate increased aldosterone secretion, causing sodium and water retention, increasing blood volume and thus producing hypertension.

But why does blood pressure become even higher after the renal artery is expanded?

Zheng Ren knows this involves an area that existing science cannot research clearly. As someone who is particularly confident, Zheng Ren basically had no preparation to thoroughly solve renal hypertension.

As long as he can complete a task and obtain Surgical Training Time, Zheng Ren is very satisfied.

Dissecting the renal artery, Zheng Ren found that the preganglionic neuronal cell bodies of the renal sympathetic nerves originating from the intermediolateral column of the spinal cord from thoracic segment 12 to lumbar segment 2 were normal upon entering the celiac ganglion and before the aorta, with no abnormalities.

But when the aorta branches to form the renal artery, the renal sympathetic nerves that should run alongside the renal artery actually fuse with the renal artery in the stenotic segment.

This is the reason!

Because of the thermal stimulation from radiofrequency ablation, it causes local anatomical structural variation, producing renal artery stenosis while the renal sympathetic nerves, due to the wrapping of exuded material, fuse together with the renal artery.

When entering under the stent, while expanding the stenotic segment of the renal artery, it also stimulates the renal sympathetic nerves, resulting in an irreversible hypertension condition.

The neurotransmitter released by the postganglionic fibers of the renal sympathetic nerves is norepinephrine, which can regulate renal blood flow, glomerular filtration rate, tubular reabsorption, and renin release.

When the renal artery and renal sympathetic nerves are expanded by the stent and the nerves are compressed, this series of physiological processes all undergo changes.

Zheng Ren watched the experimental subject on the operating table of the System Operating Room begin to ponder.

The problem has been found; what should we do?

He did not rush to end this Shou Bing, although the scene has now become a forensic autopsy scene, Zheng Ren still did not end this process.

First, using the stent to measure the location where the renal artery and renal sympathetic nerves fuse, it was found that no matter how the angle is changed, it is absolutely impossible to avoid compressing the renal sympathetic nerves while expanding the renal artery with the stent.

Zheng Ren hesitated a moment, shifted his thinking, and began preparing to use surgical procedure means to solve this problem.

Surgical procedure, dissecting the renal artery from the sympathetic nerves……just thinking about it makes Zheng Ren's head feel like two big heads.

The difficulty of this Shou Bing has directly skyrocketed to the heavens!

Although the General Surgery Department's Shou Bing skill has reached Master-level, Zheng Ren still has no confidence.

But since we've found a idea, let's give it a try. The System Big Pig Trotter did not give an S-rank Shou Bing grading, which proves the difficulty……the difficulty remains great, Zheng Ren sighed.

This is such a difficult task, yet the reward is not much; is the Big Pig Trotter crashed? Zheng Ren muttered in his heart.

The second Shou Bing began, the experimental subject in lateral decubitus position, via a longitudinal incision of the waist along the retroperitoneal path exposed the abdominal aorta, renal artery, and renal vein. Under the dissecting microscope, the renal sympathetic nerves that run alongside and fuse with the renal artery and renal vein were carefully dissected out near them.

However, Zheng Ren actually discovered an advantage.

During normal dissection, one must also avoid mistaking fascia or other nerve tissues for the renal sympathetic nerves.

But for this patient, only retrograde dissection is needed, and that is sufficient.

This can reduce many Shou Bing processes and shorten Surgical Training Time.

Zheng Ren has already made up his mind; this kind of difficult Shou Bing, without a few thousand, I estimate I cannot get it.

The dissection process, at first, was relatively smooth.

But under the Microscope, a little dissection, still less than 1 cm, the experimental subject's blood pressure suddenly spiked, and the System immediately reminded Zheng Ren that the experimental subject died due to excessive blood pressure causing cerebral blood vessel rupture.

Zheng Ren was stunned.

Is this not acceptable? I've already been very careful, using a 20x Microscope, under-the-Microscope Shou Bing, it seems I didn't touch the renal sympathetic nerves.

But the experimental subject's death is a fact; surely something went wrong.

Zheng Ren began Shou Bing again.

The result was still the same.

Again……it was death again.

Again and again, experimental subjects died, and Surgical Training Time was rapidly consumed.

Zheng Ren, after the 78th Shou Bing failure, finally hesitated. Although he still believed his chosen method was correct, Shou Bing repeatedly failed, so he had to find the cause.

It's definitely not a technique problem.

He did not continue Surgical Training, and he couldn't be bothered to look at the Little White Fox's mocking expression, and directly left the System Space.

"Su Yun, are you asleep?" Zheng Ren asked.

"If you don't speak, I've already started dreaming."

"Frequent dreaming is a sign of poor rest, unable to enter deep sleep, and has a great impact on the body." Zheng Ren said.

"What's the matter?" Su Yun, without arguing with Zheng Ren, got up to ask.

"I have examined the patient's case and the Shou Bing process, highly suspecting fusion of the renal sympathetic nerves and renal artery. After placing the stent, stimulating the renal sympathetic nerves leads to malignant, refractory hypertension." Zheng Ren said.

Su Yun frowned.

It's just the Shou Bing procedure, can you see the renal sympathetic nerves? This is fucking bullshit, isn't it?

But he didn't ask Zheng Ren how he had discovered it, because there was only one answer——Technique level wasn't enough.

Su Yun rarely seeks boredom.

"When you performed the heart transplant, how did you handle the nervous system?" Zheng Ren asked.