Objective To explore the safety and effectiveness of gasless subclavicular lateral approach in parathyroid surgery. Methods A retrospective comparative study was conducted to collect a total of 53 patients with primary hyperparathyroidism who underwent surgical treatment at Ruijin Hospital, Shanghai Jiao Tong University School of Medicine from November 2024 to April 2025. Among them, 20 patients underwent subclavicular lateral approach surgery (experimental group). The control group was matched 1∶1 based on criteria including gender, age, tumor size, and preoperative （parathyroid hormone, PTH） levels. Twenty patients who underwent conventional anterior cervical approach during the same period were selected for a case-control study. The surgical efficacy, postoperative incision pain, incidence of complications, and cosmetic effects between two groups were compared. Results There was no statistically significant difference (P>0.05) in operative time, intraoperative bleeding, hospitalization time, and surgical efficiency between the two groups. There was no statistically significant difference in the incidence of postoperative complications such as hoarseness, water choking, incision infection, incision hematoma, fever, and postoperative pain scores between the two groups during hospitalization (P>0.05). In the scar assessment one month after surgery, the score of the experimental group was lower than that of the control group (P<0.05). The satisfaction score of the beauty effect in the experimental group was significantly better than that in the control group (P<0.01). Conclusions Gasless subclavicular lateral approach for parathyroidectomy, as an emerging and anatomically optimized surgical technique, has good effectiveness and safety, without significantly increasing surgical risks. It can safely remove lesions without leaving surgical scars in the anterior neck, and has the advantage of good cosmetic effects. As a safe and feasible surgical method, it provides a new and ideal choice for patients undergoing parathyroid surgery.

Local recurrence is a major clinical challenge after primary rectal cancer surgery. Although there is a possibility that R0 resection can be achieved, the outcome is still not favorable due to the low R0 resection rate and complexity of the surgery. Therefore prevention has a higher priority over treatment afterwards. As TME principle is accepted worldwide, the local recurrence rate has been reduced dramatically. And there are other factors associated with local recurrence including CRM, operation type, staging and PNI. Proper chemoradiotherapy may reduce the risk, however benefit always comes with side effect, therefore risk stratification is important.