Comparing laparoscopic and robotic splenectomy: A systematic review of the outcomes

Splenectomy can be performed using various surgical approaches, including open, laparoscopic (LS), and robotic splenectomy (RS). While LS has been the mainstay for many years, it is associated with a steep learning curve and increased rates of morbidity and conversion to open surgery in complex cases such as splenomegaly, obesity, haematological malignancies, and patients with prior laparotomies. RS has emerged as a technique that facilitates a spleen-focused dissection, potentially reducing anatomical disruption and operative risk. This systematic review aimed to compare the peri-operative outcomes of LS and RS in non-traumatic indications for splenectomy. A comprehensive search was conducted in MEDLINE, Embase, CINAHL, and CENTRAL databases, along with searches for unpublished and ongoing studies through the World Health Organization platform. Data extraction was standardized using a pre-tested collection form, and statistical methods were employed to derive mean values where only medians and interquartile ranges were reported. The results demonstrated that the mean operative time was longer in the RS group, although the difference was not statistically significant. Conversion to open surgery occurred in 12 LS cases compared to 2 RS cases. Post-operative complications were more frequent in the LS group (9 patients) compared to the RS group (1 patient), with most complications observed after 24 hours. The mean length of hospital stay was similar between groups (6.0 days for RS vs. 6.5 days for LS; P = 0.89). RS was associated with lower mean intraoperative blood loss compared to LS. In conclusion, RS may offer advantages over LS in terms of reduced blood loss, lower conversion rates, and fewer postoperative complications, although it does not significantly impact hospital stay duration or cost-effectiveness and is associated with longer operative time.