Acute changes in haematocrit leading to polycythaemia in late-onset hypogonadism patients that receive testosterone replacement therapy: a South African study

Keywords: depot-testosterone haematocrit, late-onset hypogonadism, polycythaemia, testosterone replacement therapy, undecanoate

Abstract

Background: According to the literature, parenteral testosterone replacement therapy (TRT)-induced polycythaemia is associated with cardiovascular events. No or minimal data exist for the prevalence of TRT-induced polycythaemia in late-onset hypogonadism (LOH) patients from South Africa. Polycythaemia is the side effect most frequently associated with parental TRT formulations.

Design: This was a quantitative, observational, descriptive, retrospective study.

Setting: The study setting was a private practice male clinic in Emalahleni.

Subject: An all-inclusive sampling method was used.

Outcome measures: The main outcome measure for polycythaemia was haematocrit (Hct). An Hct percentage of > 50% at month 3 (post-treatment initiation) constituted a positive diagnosis for polycythaemia. For the rise in total testosterone (TT) and Hct, the variance was used as documented between pre- and post-treatment initiation.

Results: The prevalence of polycythaemia was 34%. A statistically significant increase in both TT and Hct was observed. The Cohen’s d effect size was 0.68 and 0.73, respectively, for TT and Hct.

Conclusion: Depot-testosterone undecanoate parenteral formulation induces polycythaemia in LOH patients, where the rise in TT demonstrates the effectiveness of therapy.

The full article is available at https://doi.org/10.1080/16089677.2018.1553344

Author Biographies

Jesslee Melinda Du Plessis, North-West University

Medicine Usage in South Africa (MUSA), North-West University, Potchefstroom, South Africa

Hermanus Lambertus Bester

Private Hospital, Emalahleni, South Africa

Marlene Julyan, North-West University

Medicine Usage in South Africa (MUSA), North-West University, Potchefstroom, South Africa

Marike Cockeran, North-West University

School for Computer, Statistical and Mathematical Sciences, North-West University, Potchefstroom, South Africa

Published
2019-07-21
Section
Research Articles