Table 1.
Results from focal cryotherapy studies mentioning post-treatment histological outcomes
Study | Total number of patients | Treatment modality | Biopsy method for initial diagnosis | Protocol or for-cause biopsy method | Number of patients with a positive post-procedural biopsy/total number of biopsied patients | Biopsy significance | Subsequent treatment |
---|---|---|---|---|---|---|---|
Bargawi et al. [65] | 62 | Cryo | Template mapping | Protocol 12-month TRUS biopsy |
12/62 (19 %) 1/12 bilateral 7/12 ipsilateral 4/12 contralateral side |
7/8 NS ipsilateral 3/4 NS contra |
AS (5) Redo cryo (5) RRP (2) |
Bahn et al. [23] | 73 | Cryo | Doppler TRUS | Protocol and for cause 6- to 12-month TRUS biopsy |
12/48 (25 %) 1/12–ipsilateral 11/12 contralateral side |
1/1 NS ipsilateral 9/11 NS contralateral |
AS (8) Redo cryo (1) brachy (1) ADT (1) |
Ward and Jones [3] | 1149 | Cryo | NA | For cause TRUS biopsy |
42/162 (26 %) | NA | NA |
Truesdale et al. [24] | 77 | Cryo | TRUS | For cause TRUS biopsy |
10/22 (45 %) 2/10 ipsilateral 7/10 contralateral 1/10 bilateral |
NA | NA |
Lambert et al. [25] | 25 | Cryo | TRUS | For cause or PSA nadir <50 % TRUS biopsy |
3/7 (43 %) 1/3 ipsilateral 2/3 contralateral |
3/3 NS | Redo cryo (3) |
Ellis et al. [26] | 60 | Cryo | NA | Protocol 12-month TRUS biopsy |
14/35 (40 %) 1/14 ipsilateral 13/14 contralateral |
NA | Redo cryo (12) Lost to FU (1) |
Onik et al. [27] | 55 | Cryo | Template mapping | For cause and protocol 12-month TRUS Biopsy |
Protocol 0/26 For cause 4/4 in untreated portion of gland |
NA | Redo cryo (4) |
Bahn et al. [27] | 31 | Cryo | Doppler TRUS | Protocol 6-month TRUS biopsy |
1/25 (4 %) 1/1 in untreated portion of gland |
NA | Redo cryo (4) |
Cryo cryotherapy, TRUS transrectal ultrasound-guided biopsy, NA not available, NS non-significant, ADT androgen deprivation therapy, AS active surveillance