Comparison of Surgical Outcomes and Long-term Survival between Limited and Major Hepatic Resection for Hepatocellular Carcinoma Less than 5 cm

PURPOSE: Though major hepatic resections including hemihepatectomy, trisectionectomy, and central bisectionectomy are most commonly employed for small (<5 cm) hepatocellular carcinoma (HCC), limited hepatic resection is indicated in some HCC patients with impaired liver function, poor physical condition, or tumors peripherally located. We compared the clinicopathological features and long-term survival between the patients who underwent major resection and limited resection. METHODS: From January 1998 to May 2007, 223 patients who underwent hepatic resection for small HCC were enrolled. 123 patients underwent limited resection and 100 patients underwent major resection. Clinocopathologic features, overall, and disease-free survival were compared between both groups. RESULTS: The limited resection group had lower mean serum albumin levels (3.86+/-0.41 vs. 4.11+/-3.61, P<0.0001) and higher mean ICG R15 (12.66+/-0.87 vs. 7.51+/-4.33, P<0.0001). Patients with esophageal varix and liver cirrhosis were more common in the limited resection group (34.1% and 73.1% versus 9% and 45% respectively). Morbidity and mortality were not different in both groups. Overall 1-, 3-, 5-year survivals in both limited resection and major resection groups were 89.4%, 77.3%, 43.8% and 87.8%, 76.5%, 62.1% respectively (P=0.161) and 1-, 3-, 5-year disease free survivals were 80.2%, 50.2%, 38.6% and 79.9%, 63.2%, 50.4% respectively (P=0.10). CONCLUSION: Despite indifference of overall and disease-free 5-year survival rates between limited and major resection groups, careful follow up is essential to detect late recurrence in the limited resection group, since limited resection tends to have more frequent recurrence, especially 2 years after surgery.

Usefulness of Laparoscopic-assisted Surgery for the Treatment of Colonic Diverticulitis

PURPOSE: Colonic diverticulitis was rare in Korea in the past. However, it is progressively increasing probably because of a prolonged life span and a westernized diet pattern. Especially, right-sided colonic diverticulitis is difficult to differentiated from acute appendicitis. The purpose of this study was to verify the usefulness of laparoscopic-assisted surgery for the diagnosis and treatment of colonic diverticulitis. METHODS: We retrospectively reviewed 65 patients with colonic diverticulitis who underwent surgery from January 1998 to December 2002. RESULTS: The mean age of the patients was 36.3 years. Males were more prevalent than females (1.6:1). Abdominal ultrasonography (USG) was used as a diagnostic tool in 40 cases (61.5%), abdominal USG with colon enema in 8 cases (12.3%), and abdominal USG with abdominal CT in 4 cases (6.2%). The preoperative diagnosis was acute appendicitis in 52 patients (80.0%), perforated diverticulitis in 10 patients (15.4%), peritonitis in 2 patients (3.5%), and peptic ulcer perforation in 1 patient (1.5%). The postoperative diagnosis was simple diverticulitis in 47 cases (72.3%). The cecum was the most commonly involved area (55 cases, 84.6%). The types of open surgery were an appendectomy in 17 cases (26.1%), a right hemicolectomy in 17 cases (26.1%), a cecectomy in 6 cases (9.2%). The types of laparoscopic- assisted surgery were an appendectomy in 17 cases (26.1%), a laparoscopic-assisted right hemicolectomy in 4 cases (6.2%), and an anterior resection in 1 case (1.5%). The postoperative complication rate was 11.9% (5 cases). All of these occurred with the open technique, but no statistically significant difference existed between the complication rates for the two operative procedures (P=0.158). The mortality rate was zero for both operative procedures. The length of hospital stay (4.72+/-4.3 vs 10.1+/-6.2)(P=0.001) was significantly shorter in the laparoscopic-assisted group than in the open group. CONCLUSIONS: Preoperative diagnosis is sometimes difficult in patients with colonic diverticulitis. We consider laparoscopic-assisted surgery to be a useful diagnostic and therapeutic modality in such cases. The laparoscopic technique offers particular advantages to diverticulitis patients because of the short hospital stay and the low morbidity and mortality rates.