切胃还能发胖？袖状胃切除术后体重反弹，警惕这一时间段高发

Core Insights - Obesity is a significant global public health issue, with a retrospective study revealing that 69.5% of patients who underwent sleeve gastrectomy (SG) experienced weight regain, with over 40% meeting the medical criteria for "weight regain" [6][7][8] - The study identified the third year post-surgery as a critical period for weight rebound, providing data to help identify high-risk patients and develop preventive strategies [6][8] Summary by Sections Study Overview - A retrospective cohort analysis included 676 patients who underwent SG at Shanghai Jiao Tong University from January 2011 to June 2022, with a median follow-up of 3 years [6][7] - The study aimed to analyze long-term weight changes post-SG and identify factors influencing weight loss [6] Key Findings - The study found that baseline age, initial BMI, male gender, and absence of hypertension were associated with higher percentage of total weight loss (%TWL) post-surgery [7] - The lowest weight for most patients occurred within the first year post-surgery, followed by a significant weight regain in 69.5% of patients, peaking in the third year [7] - Among 540 patients with complete follow-up, the rate of weight regain increased from 21.7% at year 3 to 32.6% at year 5 [7] Weight Change Patterns - Patients who did not experience weight regain were categorized into three groups based on weight change trajectories: significant weight loss, moderate weight loss, and minimal weight loss [7] - The significant weight loss group had higher baseline BMI, waist circumference, fasting insulin, and insulin resistance index (HOMA-IR) compared to the minimal weight loss group [7]