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Table 1 Summary of the characteristics of the non-comparative studies (n = 26)

From: Systematic review and meta-analysis of Transurethral Needle Ablation in symptomatic Benign Prostatic Hyperplasia

Characteristics

Mean (range)

Frequency studies/patients (%)

Sample size

59 (range:10–206)

 

Age (years)

67.5 ± 2.9 (47–90)

 

Follow-up (months) [n]

16 ± 15 (1–63)

 

Continent

  

Europe

 

13 (50%)

America

 

6 (23%)

Asia

 

3 (11.5%)

Australia

 

3 (11.5%)

Africa

 

1 (4%)

Studies in languages other than English

 

3 (11.5%)

Type of study

  

Design

  

   Prospective

 

24 (92%)

   Retrospective

 

1 (4%)

   Unknown

 

1 (4%)

Single-center

 

17 (65.4%)

Multicenter

 

9 (34.6%)

Type of anesthesia

  

Local

 

3 (13%)

Local+sedation

 

10 (43.5%)

Spinal

 

3 (13%)

General

 

2 (8.7%)

General/local+sedation

 

5 (22%)

Variables assessed

  

Symptoms

 

25 (96.2%)

Quality of life score

 

22 (84.6%)

Qmax (mL/s)

 

25 (96.2%)

PVR (mL)

 

17 (65.4%)

Sexual function

 

12 (46.2%)

Pressure-flow studies

 

7 (26.9%)

Prostatic size

 

13 (50%)

Re-treatment

 

17 (65.4%)

Adverse effects

 

22 (84.6%)

Duration of procedure

 

15 (57.7%)

Hospital stay

 

11 (42.3%)

Quality assessment

  

   Consecutive or representative sample

 

Yes: 21 No: 3 Not reported:2

   Presence of cointerventions

 

Yes: 19 No: 1 Not reported:6

   Evaluation blind or independent

 

Yes: 0 No: 26 Not reported:0

   Losses to follow-up ≥ 20%

 

Yes:11 No:9 Not reported:6