Controversial Alzheimer’s surgery is said to reverse symptoms. Here’s what scientists say

A controversial surgical procedure for Alzheimer's disease has been gaining attention after reports of dramatic symptom reversals. Footage shows a 80-year-old man recovering from the surgery, with his mental acuity and physical mobility improving significantly within months. The procedure, known as deep cervical lymphatic-venous anastomosis (dcLVA), involves connecting lymphatic vessels in the neck to nearby veins, creating a pathway for more efficient fluid drainage from the brain.

The theory behind the surgery is based on recent discoveries about the brain's lymphatic system. In 2015, neuroimmunologist Jonathan Kipnis discovered a network of lymphatic vessels in the brain's protective membranes, challenging the previous belief that the brain lacked a conventional lymphatic system. Later, researchers found that disrupting these vessels in mice impaired the clearance of toxic proteins associated with Alzheimer's disease, leading to accelerated cognitive decline.

Chinese microsurgeon Qingping Xie, the pioneer of the dcLVA procedure, first reported his findings in a Chinese-language journal in 2022. The technique gained little notice initially, but gained momentum when lymphatic surgeon Wei Chen from the Cleveland Clinic began presenting videos of surgery success stories at international medical conferences. The videos, showing apparent improvements in patients, sparked widespread interest and a frenzy of the surgery being performed in China.

By 2023, the procedure had spread to hundreds of hospitals in China, with thousands of patients seeking treatment. However, the rapid adoption of the surgery, driven by testimonial videos and aggressive marketing campaigns, prompted Chinese regulators to restrict the procedure to clinical research settings. Xie, the pioneer of the technique, has been detained in September for undisclosed reasons.

As controlled studies are underway around the world, the scientific community remains divided over the effectiveness and safety of the dcLVA procedure. While some researchers find the concept scientifically valid and biologically plausible, others remain concerned about potential risks such as infection, bleeding, and injury to nearby nerves. The excitement surrounding the procedure may have outpaced the available evidence, leading to a mix of qualified enthusiasm and deep skepticism.