Clinical Failure After Minimally Invasive BPH Surgery: Repeat MIST vs Traditional Retreatment

Overview

Minimally invasive surgical therapies (MIST) for benign prostatic hyperplasia (BPH) offer improved safety and preservation of sexual function but may have inferior long-term efficacy compared to traditional surgeries like TURP and EEP. This narrative review evaluates retreatment strategies following MIST failure, comparing repeat MIST procedures with conventional resection, enucleation, or ablation techniques.

Background

Lower urinary tract symptoms (LUTS) from BPH significantly impair quality of life and are associated with depressive symptoms. Traditional surgical treatments such as endoscopic enucleation of the prostate (EEP) provide durable symptom relief but often cause complications like retrograde ejaculation. MIST approaches, including PUL, iTIND, PAE, Aquablation, and Rezum, aim to balance efficacy with safety and preservation of sexual function. However, the optimal management of clinical failure after initial MIST remains unclear, particularly whether to repeat MIST or proceed with conventional surgery.

Data Highlights

This review included 28 articles: 9 on prostate artery embolization (PAE), 9 on Aquablation, 5 on prostatic urethral lift (PUL), 4 on Rezum, 2 on iTIND, and 1 comparing Rezum and PUL. The volume of literature correlates with the duration each MIST has been in clinical use. TURP was frequently performed as retreatment after MIST failure, reflecting its established efficacy and availability.

Key Findings

• MIST techniques generally preserve sexual function better than traditional surgeries but may offer less improvement in urinary flow and durability.
• Long-term reoperation rates vary, with some traditional methods like ThuLEP showing low reoperation rates (~5.9% over 10 years).
• Repeat MIST is feasible but evidence is limited, especially for newer techniques like Rezum, iTIND, and PUL.
• TURP remains the most common and well-studied retreatment option after MIST failure due to its proven efficacy.
• The choice between repeat MIST and conventional surgery should consider patient factors, including sexual activity, frailty, and risk tolerance.

Clinical Implications

Clinicians should weigh the benefits of preserving sexual function and reducing surgical risks with MIST against the potential need for retreatment due to lower long-term efficacy. In cases of MIST failure, TURP or EEP offer reliable symptom relief and are appropriate retreatment options. Individualized patient assessment is essential to optimize outcomes and balance safety with efficacy.

Conclusion

While MIST provides a safer and less invasive initial treatment for BPH, retreatment strategies after clinical failure remain underdefined. Current evidence supports the use of conventional surgeries like TURP as effective retreatment, with repeat MIST being a possible but less established alternative.

References

1. Manfredi et al. 10-year ThuLEP outcomes
2. PUL initial study 2011
3. PAE first LUTS reports 2000
4. Rezum and PUL comparative data
5. Multiple studies comparing MIST and TURP