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Related Experiment Video

Updated: Jul 16, 2026

A Mouse Model of Vascularized Heterotopic Spleen Transplantation for Studying Spleen Cell Biology and Transplant Immunity
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Is splenectomy more dangerous for massive spleens?

D McAneny1, W W LaMorte, T E Scott

  • 1Section of Surgical Oncology, Boston University, Massachusetts, USA.

American Journal of Surgery
|March 27, 1998
PubMed
Summary

Splenectomy risks are not higher for massive spleens. Age and underlying illness, not spleen size, are key factors for complications and death after spleen removal for hematologic diseases.

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Area of Science:

  • Surgical Oncology
  • Hematology
  • Clinical Risk Assessment

Background:

  • Debate exists regarding increased risks associated with removing massive spleens (> or = 1500 g) compared to smaller ones (< 1500 g).
  • Understanding the specific hazards of splenectomy is crucial for patient management.

Purpose of the Study:

  • To determine the actual risks and hazards of splenectomy, particularly in relation to spleen size.
  • To investigate the influence of spleen size on postoperative complications and mortality.

Main Methods:

  • A review of 223 consecutive adult patients undergoing elective splenectomies for hematologic diseases.
  • Morbidity and mortality rates were analyzed and combined with published data for a comprehensive meta-analysis.

Main Results:

  • Patients with massive spleens showed higher initial rates of postoperative complications (RR 2.1) and death (RR 4.7).
  • However, after adjusting for comparable diagnoses, spleen size did not significantly impact complication (RR 1.4) or mortality (RR 2.1) rates.
  • Multivariate analysis identified advanced age as a critical risk factor for both complications and death.

Conclusions:

  • Increased age and the presence of underlying illnesses are the primary determinants of morbidity and mortality following splenectomy for hematologic conditions.
  • Spleen size is not an independent risk factor for adverse outcomes when age and diagnosis are considered.