Haematologica 1999; 84:E04

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Splenectomy and idiopathic thrombocytopenic purpura
José Antonio García-Erce, Juan Carlo Vella
Hospital Provincial de Burgos "Divino Valles", Carretera de Santander s/n, 08.009 Burgos, Spain.


Correspondence: José Antonio Garcia Erce, M.D., Plaza Ireneo, González, 5, 1°, Santa Cruz de Tenerife, 38.002, Canary Islands. Phone: international+34-922-271564 (or: +34-670-807552) &endash; E-mail: jgarciae@aehh.org (or: joseerce@santandersupernet.com
medline ref.
We have recently read the interesting paper about the Italian splenectomy policies, written by Baccarani et al, which was published in the May issue of the present volume of Haematologica.1
It is currently accepted that splenectomy is a second line treatment in chronic idiopathic thrombocytopenic purpura, when pharmacological treatments fail or when their duration or toxicity make then not acceptable. The main haematological indication for laparoscopic splenectomy in Italy, as in the rest of the world, is idiopathic thrombocytopenic purpura,1 but authors do not describe any detail about previous pharmacological treatments, follow up after splenectomy or postoperative treatment.
As Baccarani et al. report, 59% of splenectomies practised in Italy are still performed according to classic open technique, although most of the recent studies have reported that laparoscopic splenectomy has at least the same incidence of accessory spleen, response rate, safety and efficacy;2-4 it also has advantages of small abdominal trauma, less postoperative pain, better cosmetic results and faster discharge.2 In addition to that, laparoscopic splenectomy has not difference in long term results and even shorten the postoperative stay, saving $233 per patient treated.3,5
Other question particularly interesting, is the possible positive value of high-dose intravenous immune globulin administration as a predictor of the response to splenectomy, with the worst responses to splenectomy in patients who have poor responses to intravenous immune globuline,6 and the subsequent important controversy.7 Young patient age appears to be a positive predictive factor for both short and long term response to intravenous immune globulin or to splenectomy, including the platelet recovery rate and postsplenectomy thrombocytosis;7,8 on the other hand, a higher peak platelet count immediately after intravenous immune globulin administration seems to be correlated with a longer response in patients with idiopathic thrombocytopenic purpura.9
We agree with Baccarani et al. about the convenience of starting a wide prospective splenectomy register, but accepting the authors' invitation to the discussion, we would like to know the Italian experience in relation to the positive predictive value of high-dose intravenous immune globulin response as a predictor of the splenectomy response.

References

  1. Baccarani U, Terrosu G, Donini A, Zaja F, Bresadola F, Baccarani M. Splenectomy in hematology. Current practice and new perspectives. Haematologica 1999; 84:431-6.
  2. Caprotti R, Porta G, Franciosi C, et al. Laparoscopic splenectomy for hematological disorders. Our experience in adult and pediatric patients. Int Surg 1998; 83:303-7.
  3. Shimomatsuya T, Horiuchi T. Laparoscopic splenectomy for treatment of patients with idiopathic thrombocytopenic purpura. Comparison with open splenectomy. Surg Endosc-Ultras 1999; 563-6.
  4. Morris KT, Horvath KD, Jobe BA, Swanstrom LL. Laparoscopic management of accessory spleens in immune thrombocytopenic purpura. Surg Endosc-Ultras 1999; 13:520-2.
  5. Schlinkert RT, Mann D, Weaver A. Laparoscopic splenectomy: reduction of hospital charges. J Gastrointest Surg 1998; 2:278-82.
  6. Law C, Marcaccio M, Tam P, Heddle N, Kelton JG. High-dose intravenous immune globulin and the response to splenectomy in patients with idiopathic thrombocytopenic purpura. N Engl J Med 1997; 336:1494-8.
  7. Schneider P, Wehmeier A, Schneider W. High-dose intravenous immune globulin and the response to splenectomy in patients with idiopathic thrombocytopenic purpura. N Engl J Med 1997; 337:1087-9.
  8. Fabris F, Zanatta N, Casonato A, Randi ML, Luzzatto G, Girolami A. Response to splenectomy in idiopathic thrombocytopenic purpura: prognostic value of the clinical and laboratory evaluation. Acta Haematol 1989; 81:28-33.
  9. Bussel JB, Pham LC. Intravenous treatment with gammaglobulin in adults with immune thrombocytopenic purpura: review of the literature. Vox Sang 1987; 52:206-11.