The Effect of Preoperative Neutrophil-To-Lymphocyte Ratio and Platelet-To-Lymphocyte Ratio on Predicting Rupture Risk in Tubal Ectopic Pregnancies

Gynecol Obstet Invest. 2019;84(4):378-382. doi: 10.1159/000496543. Epub 2019 Jan 17.

Abstract

Background: Consecutive measurements of β-hCG levels and sonographic evaluation of adnexae are critical for choosing the optimal management in ampullar tubal ectopic pregnancies (EP). To select suitable patients for conservative approach, there is a need for an affordable and reliable marker for determining rupture risk. Evaluation of systemic inflammatory markers in combination with serum β-hCG levels and ultrasound might help to decide the appropriate treatment option.

Objective: The purpose of the present study was to evaluate the diagnostic value of neutrophil-to-lymphocyte ratio (NLR) and platelet-to-lymphocyte ratio (PLR) in determining the rupture risk in ampullar tubal EPs and to compare with intraoperative findings.

Methods: A total of 142 patients who underwent surgery for tubal EP were included. Seventy-two patients were in the intraoperatively diagnosed tubal rupture group and 70 patients without rupture findings were included in the control group. Both groups were compared for inflammation markers, β-hCG levels, and sonographic findings.

Results: Both NLR and PLR levels were found to be significantly higher in the tubal rupture group (4.62 ± 3.13 vs. 2.67 ± 1.43, 162.94 ± 63.61 vs. 115.84 ± 41.15, p < 0.01, respectively). According to the receiver operating characteristic analysis performed for the diagnostic performance of tubal diameter measurement, β-hCG, NLR, and PLR levels were significantly associated with histopathologically confirmed tubal rupture (p < 0.01).

Conclusion: Systemic inflammatory markers are feasible and affordable tools for predicting tubal rupture risk in ampullar EPs and might be useful for determining surgery decision especially in low resource settings.

Keywords: Ectopic pregnancy; Inflammation; Laparoscopy; Neutrophil-to-lymphocyte ratio; Platelet-to-lymphocyte ratio.

MeSH terms

  • Adult
  • Biomarkers / blood
  • Blood Platelets / metabolism*
  • Chorionic Gonadotropin, beta Subunit, Human / blood
  • Female
  • Humans
  • Inflammation
  • Lymphocyte Count
  • Lymphocytes / metabolism*
  • Middle Aged
  • Neutrophils / metabolism*
  • Patient Selection
  • Platelet Count
  • Pregnancy
  • Pregnancy, Tubal / blood*
  • Pregnancy, Tubal / therapy
  • Preoperative Period
  • ROC Curve
  • Risk Assessment
  • Risk Factors
  • Rupture, Spontaneous / etiology*
  • Rupture, Spontaneous / therapy

Substances

  • Biomarkers
  • Chorionic Gonadotropin, beta Subunit, Human