OBJECTIVETo evaluate the result of laparoscopic colorectomy in treatment of colorectal cancer.

METHODSLaparoscopic colorectal surgery was performed in 78 patients with colorectal cancer. Operative procedures, complications and postoperative recovery were studied.

RESULTNone of the 78 patients died of laparoscopic colorectal surgery or complications. Eleven patients died from tumor metastasis and 2 from other causes. Twenty-one, 17, 8 patients for 1, 3, 5 years survived respectively. In nine patients who had received operation less than 1 year, no tumor recurrence or metastasis was found except in 1 patient 11 months after operation.

CONCLUSIONLaparoscopic colorectal cancer resection is essential to colectomy for colon and rectum cancer when indicated.

Adult ; Aged ; Aged, 80 and over ; Colectomy ; methods ; Colorectal Neoplasms ; mortality ; pathology ; surgery ; Female ; Humans ; Laparoscopy ; Male ; Middle Aged ; Neoplasm Staging ; Rectum ; surgery

Objective:To preliminarily explore the clinical value of three-dimensional ultrasound fusion imaging(3DUS FI) visualization technology in guiding precise needle placement during thermal ablation of hepatocellular carcinoma (HCC).Methods:A total of 56 HCC patients (59 lesions)who underwent 3DUS FI guided thermal ablation were retrospectively analyzed in the First Affiliated Hospital of Sun Yat-sen University from November 2019 to December 2021. All patients were collected with three-dimensional ultrasound volume image before ablation which were fused with real-time two-dimensional ultrasound image for registration, and then the tumor and the safety margin of 5 mm were segmented and marked. Finally, the thermal ablation was performed under three-dimensional visualization. Contrast-enhanced CT/MRI was performed 1 month after thermal ablation to evaluate whether the lesion was completely ablated and measure the ablative margin, and the relationship between ablative margin and the incidence of local tumor progression (LTP) was also analyzed.Results:During the ablation, all lesions could be successfully registered and displayed in three-dimension. Postoperative contrast-enhanced ultrasound showed that all lesions were completely ablated. A total of 37 lesions could be evaluated for ablative efficacy and ablative margin based on contrast-enhanced CT/MRI 1 month after themal ablation, of which 32 (86.5%) lesions achieved complete ablation and obtained at least 5 mm ablative margin. During the follow-up period, LTP was occurred in 4 lesions, 3 of the lesions occurred at the ablative margin< 5 mm. Both 1-year and 2-year cumulative LTP rates were all 7.1%. None of patients had serious complications or deaths associated with thermal ablation.Conclusions:3DUS FI real-time guidance technology is feasible and safe in visually guiding precise needle placement during thermal ablation of HCC.