Eea circular stapler with tri staple technology 28 mm medium thick

The characteristics of each device are summarized in Table 1 and Figure 2. The EEA™ circular stapler with DST series™ technology 28 mm, 4.8 mm (Covidien, New Haven, CT) has a double row of staples of the same height, whereas the new device EEA™ circular stapler with Tri-Staple™ technology 28 mm Medium/Thick (Covidien, New Haven, CT) has a triple row of staples of different heights (gradually increasing from inside to outside) (Fig. 2). In this study, DCS of 28 mm and 4.8 mm and TCS of 28 mm and Medium/Thick were selected for caliber and staple height were selected, as they are most often used in clinical practice.

A total of 285 patients from our medical records who underwent colorectal surgery with left-sided circular stapled colorectal anastomosis above 5 cm from the anal verge with the DST at Tokyo Medical University Hospital between 2017 and 2021 were included in this retrospective study using a propensity score analysis. Patients aged ≥20 years who underwent colorectal anastomosis after left colectomy, sigmoidectomy, or anterior rectal resection for benign or malignant pathology were included, and those with anastomosis <5 cm from the anal verge (they did not have DST anastomosis) or who had preoperative therapy were excluded. Patients were divided into 2 groups according to the device used for the DST (DCS and TCS groups). A conventional DCS was used until December 2020. A novel TCS device (EEA™ circular stapler with Tri-Staple™ technology, 28 mm Medium/Thick, Covidien, New Haven, CT) was introduced in Japan in January 2021, and since then, our hospital has preferentially used this device. The flowchart of this study is shown in Figure 1. This study was approved by the institutional review board of the Tokyo Medical University Hospital.