目的：探讨内镜下泪囊鼻腔吻合(endoscopic dacryocystorhinostomy, En-DCR)联合双管人工泪管植入(bicanalicular silicone tube intubation, BSTI)术治疗小泪囊型慢性泪囊炎的疗效。方法：回顾2020年7月—2023年3月在温州医科大学附属眼视光医院通过CT泪囊造影术(CT dacryocystography, CT-DCG)确诊的单眼小泪囊型慢性泪囊炎并接受手术的患者69例(69眼)，手术采取术中开放泪总管平面的En-DCR并联合BSTI术治疗。术后3个月取出人工泪管，通过术前和术后9个月随访资料，记录和分析了纳入患者的基本资料、手术治疗、治疗效果(包括解剖成功率和功能成功率)和并发症情况。结果：本研究最终纳入61例(61眼)患者，其中男21例、女40例，右眼33眼、左眼28眼。平均年龄为(55.31±12.28)岁(范围为27~75岁)。所有患者均顺利完成术中开放泪总管平面的En-DCR并联合BSTI术治疗。随访9个月，En-DCR的解剖成功率为80.33%(49/61)，功能成功率为75.41%(46/61)，在随访过程中未出现视力下降、眶内出血、感染扩散等并发症。结论：En-DCR联合BSTI术治疗小泪囊型慢性泪囊炎可取得较为满意疗效。

Objective: To evaluate the efficacy of endoscopic dacryocystorhinostomy (En-DCR) Combined with bicanalicular silicone tube intubation (BSTI) for the Management of Chronic dacryocystitis with Small Lacrimal sac. Methods: A total of 69 patients (69 eyes) with chronic dacryocystitis with small lacrimal sac diagnosed by CT dacryocystography (CT-DCG) treated with En-DCR combined with BSTI at the Eye Hospital of Wenzhou Medical University from July 2020 to March 2023 were reviewed. The surgery procedure exposed the plane of common canalicular, and followed by BSTI. The tube was removed 3 months after surgery. The basic data, surgical treatment, therapeutic effect (including anatomical and functional success rates) and complications of the included patients were recorded and analyzed through the follow-up data before and 9 months after surgery. Results: Ultimately, 61 patients (61 eyes) were included in this study—21 males and 40 females—with a distribution of 33 right eyes and 28 left eyes. The mean age was calculated at 55.31±12.28 years (range: 27 to 75 years). All patients underwent a successful En-DCR with exposed the plane of common canalicular and BSTI. At the nine-month follow-up, the anatomical success rate of En-DCR was 80.33%(49/61), the functional success rate was 75.41%(46/61). No complications such as visual impairment, intraorbital hemorrhage, or spread of infection occurred during the follow-up period. Conclusions: The combination of En-DCR and BSTI surgery for chronic dacryocystitis with small lacrimal sac can achieve a satisfactory therapeutic effect.