Chapter 311 He represents the limit of this operation!

Even if what Xu Qiu was given was another operation that was extremely difficult, extremely complex, and immeasurably dangerous.

Director Zheng naturally knows this.

He emphasized:

"Reoperation is very complicated. Compared with the initial operation, the operation time is longer, the operation risk is higher, and the prognosis will be much worse. The chance of complications within seventy-two hours is quite high!"

The problems in actual surgery are more complicated than Director Zheng's few words.

For example, protamine and heparin are required after surgery.

When protamine is infused during reoperation, hypotension, anaphylaxis-like reactions, and severe pulmonary vasoconstriction are likely to occur. This is a common surgical accident that directly leads to surgical failure and the patient's death on the table.

In addition, cases undergoing secondary surgery are generally very ill and have poor left ventricular function, making the situation even more uncontrollable.

Director Zheng continued: “For Yan Ziqiang, there is another option: angioplasty and endovascular stent at Xiehe.

This method has lower surgical mortality and disability rates, but the late-stage effects are very poor.

The six-month restenosis rate is a full 60 percent!

If artificial blood vessel transplantation is performed and everything goes well, with the help of new small-diameter artificial blood vessels, the incidence of restenosis within five years will be less than 20%! "

The former is to remove focal plaques and thrombus through the great saphenous vein graft. The early effect of the operation is very significant, but the late stage is very pessimistic.

The latter is actually riskier.

Small-diameter artificial blood vessels... This is an area that human medicine has never touched. The road ahead is dark, and Xu Qiu is the only one walking alone.

No one can predict the postoperative efficacy. Director Zheng and others can only make inferences from animal experiments and laboratory data, and come up with a relatively conservative conclusion.

President Xiehe was silent for a moment and said: "If we do a stent, Xiehe can guarantee that the restenosis rate in six months will be less than 30%..."

This is already quite a pioneering work, and it is a surgical capability that far exceeds the level of peers in the industry.

However, even so, his voice still didn't have much confidence.

After all, compared to 20% in five years, the 30% incidence rate in six months that Xiehe can guarantee is still too high, and there is really no late-stage curative effect.

In front of Xu Qiu, Dean of Xiehe felt for the first time that "Xiehe is just that"...

Director Zheng also felt relieved.

Even if their new artificial blood vessel is conservatively estimated to be more effective than Union Medical College, once the operation is successful, it will undoubtedly become another trump card department of Linhai No. 1 Hospital.

It will also mark that Linhai No. 1 Hospital will become the last hope for 600,000 patients waiting for vascular reconstruction.

"Let's look at the remaining list of subjects."

Director Zheng turned to the next page of the PPT and continued the introduction.

In addition to Yan Ziqiang, there are 19 others, some of whom need coronary artery bypass transplantation, some who need blood dialysis, or who need small-diameter blood vessels to replace vascular defects.

In the end, Xu Qiu chose four of them.

Each of these four subjects was limited by various reasons, such as having too many high-risk factors, limited blood vessel materials, being sentenced to death by other hospitals, or could only be treated conservatively.

Among them is Yan Ziqiang.

After some deliberation, Yan Ziqiang, the most difficult and risky operation, will be performed by Xu Qiu.

The other three are much less difficult in comparison.

The team was led by Director Zheng from the Cardiac Surgery Department of Linhai No. 1 Hospital, Professor Yang Chenxi from Fuwai, and Ma Qin, the leading cardiovascular expert from Fuwai.

If we say that Yan Ziqiang represents the limit of small-diameter artificial blood vessels, it is the upper limit of the most dangerous group of patients that this new type of blood vessel can handle.

Then the remaining three are more universal.

Regardless of the patient's condition or the doctor's surgical skills, they are not too tricky. They are high-precision surgeries that can be handled and mastered by directors at major tertiary institutions such as Xiehe, Tiantan, and 301.

It is not something that only Xu Qiu can do, which is similar to the world's only seedling with complete cranial fusion and separation.

Xu Qiu represents whether this new type of blood vessel is really feasible.

The surgical results of Director Zheng and others can tell whether this product and surgery can be spread throughout Daxia and become a truly groundbreaking new surgery in the Department of Cardiology!

…

After initially determining the subjects and the surgical plan, Linhai No. 1 Hospital dispatched four teams to go to the patient's location and take the patient back to the first hospital.

Soon, the four of them were admitted to the VIP ward of the Department of Cardiology and began preoperative preparations.

Among them, Yan Ziqiang is the focus.

Routine coronary angiography is performed to confirm the location, degree, and extent of obstruction.

Estimate the number of grafts to be transplanted and determine the surgical plan.

In addition, cardiopulmonary function must be estimated and the risk of reoperation must be assessed.

The number of vascular grafts performed in the initial surgery, the vascular graft materials, the graft site, the condition of the ascending aorta, and recent coronary angiography results will directly determine the final surgical details.

When Yan Ziqiang came from Xiehe that day, Xu Qiu made time to greet him personally.

"Doctor Xu!"

The old man was sitting in a wheelchair. As soon as he got off the car, he held Xu Qiu's hand tightly.

Yan Ziqiang's complexion was even worse than at that time, his lips were cyanotic, and he had to take several breaths to speak. It was obvious that he had been suffering from ischemia and hypoxia for a long time.

"Are your feet still cold?" Xu Qiu supported the old man and asked.

At this moment, Yan Ziqiang's eyes flashed with tears.

He did not expect that when he met this benevolent doctor again, the first words he said were not any exaggerated promises, but just a plain "Are your feet still cold?"

But it was these plain words that made him more convinced that his choice was correct.

"It's not cold anymore. I also brought those cotton slippers. They are very warm." The old man wiped his eyes and just held hands with Xu Qiu.

This scene was photographed by the media and reporters who came after hearing the news.

The photo also went viral.

Named "the first small-caliber artificial blood vessel replacement surgery in human history, the surgeon and the recipient trusted each other"

That year, the photo was selected as the cover article of Daxia Medical Journal, the top medical academic journal in Daxia, becoming a rare cover photo of a human-themed publication in recent years.

But this is all for later.

Although the operation has not yet begun, the gimmick of "the first human operation with a small-diameter artificial blood vessel" has still attracted enough attention.

There are also many people in the country waiting for news.

The Food and Drug Administration, the medical device management department, and the review meeting are all looking forward to it.

A large number of foreign media outlets skipped the cumbersome application process and were directly released by the State Information Administration, obtaining licenses to conduct interviews in Linhai No. 1 Hospital.

At the same time, two confidential manuscripts quietly appeared in the draft boxes of various news media and were completed early.