Which common test should be used to assess spleen autotransplant effect?

Historically, total splenectomy was the only choice of treatment for traumatic splenic injuries. However, nonoperative management and spleen-preserving surgical techniques are preferred in modern medicine. In some situations in which the surgeon has to perform splenectomy, spleen autotransplant may preserve the splenic function. Selecting the best method for evaluating the splenic autotransplant effect has been debated for several years. In this study, we compared three common tests in evaluating the implanted spleen function.

Participants included 10 patients who were candidates for laparotomy and splenectomy. After performing splenectomy, we implanted five pieces of the spleen in the greater omentum of each patient. After 3 months, the implanted spleen function was evaluated by nuclear red blood cell (RBC) scan, serum immunoglobulin (Ig) M level, and presence of Howell-Jolly (HJ) bodies in the peripheral blood smear.

All patients had normal peripheral blood smear. The IgM level was lower than normal in one patient, and scintigraphy did not demonstrate the transplanted spleen in another patient.

All these tests may have comparable results, but because of availability and low cost of peripheral blood smear, which is also easily performed, it can be considered as the first option to evaluate the implanted spleen function.