Related Experiment Video
Updated: Jan 21, 2026

Fluorimetric Techniques for the Assessment of Sperm Membranes
Published on: November 28, 2018
[Microdissection testicular sperm extraction (MD-TESE) - a new sperm recovery technique helping men with
Göran Westlander1, Johanna Schmidt2, Cecilia Westin2
1Livio Fertilitetscentrum Göteborg - Göteborg, Sweden Fertililitetscentrum - Fertilitetscentrum Göteborg, Sweden.
Abstract:
The most severe form of male infertility is non obstructive azoospermia (NOA), where spermatogenesis is impaired or absent. If testicular sperm can be retrieved, men with NOA can become biological fathers with IVF/ ICSI. In Sweden, testicular sperm aspiration (TESA) is the most common method used to retrieve sperm but is only successful in up to 34% of procedures. In 2013, our fertility center introduced MD-TESE, where an operating microscope is used to target the biopsies. We have performed more than 134 MD-TESE procedures, mainly in cases where TESA sperm recovery failed previously. Sperm sufficient for ICSI were recovered in 52 % and in these cases 75 % resulted in embryo transfer, resulting in a 34 % ongoing pregnancy rate/deliveries per transfer. Results are encouraging and hopefully more Swedish IVF centers will introduce this technique.
Related Concept Videos
Sperm Transport
The maturation phase occurs in the epididymis, where sperm...
Sperm Structure and Semen Composition
Muscle Recovery and Fatigue
Chronic Obstructive Pulmonary Disease
Smoking is a primary risk factor for COPD, with over 80% of patients having a history of it. Patients typically experience progressive dyspnea or labored breathing, frequent coughing, and recurrent pulmonary infections. Many eventually succumb to respiratory failure, characterized by...
Design Example: Measuring Distance Between Two Points with Obstructions
Pollination and Flower Structure

