Trial Outcomes & Findings for Dorsal Penile Nerve Block for Rigid Cystoscopy in Men (NCT NCT02502487)

NCT ID: NCT02502487

Last Updated: 2020-03-31

Results Overview

A visual analog scale (VAS) ranging from 0 to 10 was used to assess the patients' pain during the procedure. 0 means no pain, 1 to 3 means mild pain, 4 to 7 means moderate pain, and 8 to 10 means severe pain. Patients were asked the VAS score to express the degree of pain at each time point.

Recruitment status

COMPLETED

Study phase

NA

Target enrollment

258 participants

Primary outcome timeframe

at cystoscopic inspection of external sphincter

Results posted on

2020-03-31

Participant Flow

Participant milestones

Participant milestones
Measure
Tetracaine Gel Group
Dorsal penile nerve block with saline and tetracaine gel into urethra before rigid cystoscopy Tetracaine: 1% Tetracaine gel instilled into urethra
Dorsal Penile Nerve Block Group
Dorsal penile nerve block with ropivacaine and plain lubricating gel into urethra before rigid cystoscopy Dorsal Penile Nerve Block: Dorsal penile nerve block with 0.33% ropivacaine using 22-G needle in the sub-pubic space at the base of the penis Ropivacaine: 0.33% Ropivacaine administered around dorsal penile nerve using 22-G needle in the sub-pubic space at the base of the penis
Combination Group
Dorsal penile nerve block with ropivacaine and tetracaine gel into urethra before rigid cystoscopy Dorsal Penile Nerve Block: Dorsal penile nerve block with 0.33% ropivacaine using 22-G needle in the sub-pubic space at the base of the penis Ropivacaine: 0.33% Ropivacaine administered around dorsal penile nerve using 22-G needle in the sub-pubic space at the base of the penis Tetracaine: 1% Tetracaine gel instilled into urethra
Overall Study
STARTED
86
86
86
Overall Study
COMPLETED
86
86
86
Overall Study
NOT COMPLETED
0
0
0

Reasons for withdrawal

Withdrawal data not reported

Baseline Characteristics

Dorsal Penile Nerve Block for Rigid Cystoscopy in Men

Baseline characteristics by cohort

Baseline characteristics by cohort
Measure
Tetracaine Gel Group
n=86 Participants
Dorsal penile nerve block with saline and tetracaine gel into urethra before rigid cystoscopy Tetracaine: 1% Tetracaine gel instilled into urethra
Dorsal Penile Nerve Block Group
n=86 Participants
Dorsal penile nerve block with ropivacaine and plain lubricating gel into urethra before rigid cystoscopy Dorsal Penile Nerve Block: Dorsal penile nerve block with 0.33% ropivacaine using 22-G needle in the sub-pubic space at the base of the penis Ropivacaine: 0.33% Ropivacaine administered around dorsal penile nerve using 22-G needle in the sub-pubic space at the base of the penis
Combination Group
n=86 Participants
Dorsal penile nerve block with ropivacaine and tetracaine gel into urethra before rigid cystoscopy Dorsal Penile Nerve Block: Dorsal penile nerve block with 0.33% ropivacaine using 22-G needle in the sub-pubic space at the base of the penis Ropivacaine: 0.33% Ropivacaine administered around dorsal penile nerve using 22-G needle in the sub-pubic space at the base of the penis Tetracaine: 1% Tetracaine gel instilled into urethra
Total
n=258 Participants
Total of all reporting groups
Age, Continuous
53.4 years
STANDARD_DEVIATION 11.5 • n=5 Participants
52.1 years
STANDARD_DEVIATION 13.0 • n=7 Participants
53.5 years
STANDARD_DEVIATION 12.0 • n=5 Participants
53.0 years
STANDARD_DEVIATION 12.2 • n=4 Participants
Sex/Gender, Customized
Male
86 participants
n=5 Participants
86 participants
n=7 Participants
86 participants
n=5 Participants
258 participants
n=4 Participants
Body weight
66.8 Kg
STANDARD_DEVIATION 8.2 • n=5 Participants
68.8 Kg
STANDARD_DEVIATION 9.6 • n=7 Participants
66.4 Kg
STANDARD_DEVIATION 8.9 • n=5 Participants
67.3 Kg
STANDARD_DEVIATION 8.9 • n=4 Participants
Height
167.3 cm
STANDARD_DEVIATION 5.6 • n=5 Participants
168.7 cm
STANDARD_DEVIATION 5.5 • n=7 Participants
167.8 cm
STANDARD_DEVIATION 6.4 • n=5 Participants
167.9 cm
STANDARD_DEVIATION 5.8 • n=4 Participants
Body mass index
23.8 Kg/m^2
STANDARD_DEVIATION 2.4 • n=5 Participants
24.2 Kg/m^2
STANDARD_DEVIATION 3.0 • n=7 Participants
23.6 Kg/m^2
STANDARD_DEVIATION 2.7 • n=5 Participants
23.8 Kg/m^2
STANDARD_DEVIATION 2.7 • n=4 Participants
Duration of cystoscopy
3.5 min
STANDARD_DEVIATION 0.6 • n=5 Participants
3.5 min
STANDARD_DEVIATION 0.5 • n=7 Participants
3.4 min
STANDARD_DEVIATION 0.5 • n=5 Participants
3.5 min
STANDARD_DEVIATION 0.6 • n=4 Participants
Cystoscopy history
First-time cystoscopy
60 participants
n=5 Participants
58 participants
n=7 Participants
61 participants
n=5 Participants
179 participants
n=4 Participants
Cystoscopy history
Repeat cystoscopy
26 participants
n=5 Participants
28 participants
n=7 Participants
25 participants
n=5 Participants
79 participants
n=4 Participants

PRIMARY outcome

Timeframe: at cystoscopic inspection of external sphincter

A visual analog scale (VAS) ranging from 0 to 10 was used to assess the patients' pain during the procedure. 0 means no pain, 1 to 3 means mild pain, 4 to 7 means moderate pain, and 8 to 10 means severe pain. Patients were asked the VAS score to express the degree of pain at each time point.

Outcome measures

Outcome measures
Measure
Tetracaine Gel Group
n=86 Participants
Dorsal penile nerve block with saline and tetracaine gel into urethra before rigid cystoscopy Tetracaine: 1% Tetracaine gel instilled into urethra
Dorsal Penile Nerve Block Group
n=86 Participants
Dorsal penile nerve block with ropivacaine and plain lubricating gel into urethra before rigid cystoscopy Dorsal Penile Nerve Block: Dorsal penile nerve block with 0.33% ropivacaine using 22-G needle in the sub-pubic space at the base of the penis Ropivacaine: 0.33% Ropivacaine administered around dorsal penile nerve using 22-G needle in the sub-pubic space at the base of the penis
Combination Group
n=86 Participants
Dorsal penile nerve block with ropivacaine and tetracaine gel into urethra before rigid cystoscopy Dorsal Penile Nerve Block: Dorsal penile nerve block with 0.33% ropivacaine using 22-G needle in the sub-pubic space at the base of the penis Ropivacaine: 0.33% Ropivacaine administered around dorsal penile nerve using 22-G needle in the sub-pubic space at the base of the penis Tetracaine: 1% Tetracaine gel instilled into urethra
Visual Analog Scale (VAS) for Pain
6 units on a scale
Interval 5.0 to 7.0
4 units on a scale
Interval 3.0 to 6.0
4 units on a scale
Interval 3.0 to 5.0

SECONDARY outcome

Timeframe: before gel administration

A visual analog scale (VAS) ranging from 0 to 10 was used to assess the patients' pain during the procedure. 0 means no pain, 1 to 3 means mild pain, 4 to 7 means moderate pain, and 8 to 10 means severe pain. Patients were asked the VAS score to express the degree of pain at each time point.

Outcome measures

Outcome measures
Measure
Tetracaine Gel Group
n=86 Participants
Dorsal penile nerve block with saline and tetracaine gel into urethra before rigid cystoscopy Tetracaine: 1% Tetracaine gel instilled into urethra
Dorsal Penile Nerve Block Group
n=86 Participants
Dorsal penile nerve block with ropivacaine and plain lubricating gel into urethra before rigid cystoscopy Dorsal Penile Nerve Block: Dorsal penile nerve block with 0.33% ropivacaine using 22-G needle in the sub-pubic space at the base of the penis Ropivacaine: 0.33% Ropivacaine administered around dorsal penile nerve using 22-G needle in the sub-pubic space at the base of the penis
Combination Group
n=86 Participants
Dorsal penile nerve block with ropivacaine and tetracaine gel into urethra before rigid cystoscopy Dorsal Penile Nerve Block: Dorsal penile nerve block with 0.33% ropivacaine using 22-G needle in the sub-pubic space at the base of the penis Ropivacaine: 0.33% Ropivacaine administered around dorsal penile nerve using 22-G needle in the sub-pubic space at the base of the penis Tetracaine: 1% Tetracaine gel instilled into urethra
Visual Analog Scale (VAS) for Pain
0 units on a scale
Interval 0.0 to 0.0
0 units on a scale
Interval 0.0 to 0.0
0 units on a scale
Interval 0.0 to 0.0

SECONDARY outcome

Timeframe: at cystoscopic inspection of penile and bulbar urethra

A visual analog scale (VAS) ranging from 0 to 10 was used to assess the patients' pain during the procedure. 0 means no pain, 1 to 3 means mild pain, 4 to 7 means moderate pain, and 8 to 10 means severe pain. Patients were asked the VAS score to express the degree of pain at each time point.

Outcome measures

Outcome measures
Measure
Tetracaine Gel Group
n=86 Participants
Dorsal penile nerve block with saline and tetracaine gel into urethra before rigid cystoscopy Tetracaine: 1% Tetracaine gel instilled into urethra
Dorsal Penile Nerve Block Group
n=86 Participants
Dorsal penile nerve block with ropivacaine and plain lubricating gel into urethra before rigid cystoscopy Dorsal Penile Nerve Block: Dorsal penile nerve block with 0.33% ropivacaine using 22-G needle in the sub-pubic space at the base of the penis Ropivacaine: 0.33% Ropivacaine administered around dorsal penile nerve using 22-G needle in the sub-pubic space at the base of the penis
Combination Group
n=86 Participants
Dorsal penile nerve block with ropivacaine and tetracaine gel into urethra before rigid cystoscopy Dorsal Penile Nerve Block: Dorsal penile nerve block with 0.33% ropivacaine using 22-G needle in the sub-pubic space at the base of the penis Ropivacaine: 0.33% Ropivacaine administered around dorsal penile nerve using 22-G needle in the sub-pubic space at the base of the penis Tetracaine: 1% Tetracaine gel instilled into urethra
Visual Analog Scale (VAS) for Pain
1 units on a scale
Interval 1.0 to 2.0
1 units on a scale
Interval 1.0 to 2.0
1 units on a scale
Interval 1.0 to 1.0

SECONDARY outcome

Timeframe: at cystoscopic inspection of prostate and bladder

A visual analog scale (VAS) ranging from 0 to 10 was used to assess the patients' pain during the procedure. 0 means no pain, 1 to 3 means mild pain, 4 to 7 means moderate pain, and 8 to 10 means severe pain. Patients were asked the VAS score to express the degree of pain at each time point.

Outcome measures

Outcome measures
Measure
Tetracaine Gel Group
n=86 Participants
Dorsal penile nerve block with saline and tetracaine gel into urethra before rigid cystoscopy Tetracaine: 1% Tetracaine gel instilled into urethra
Dorsal Penile Nerve Block Group
n=86 Participants
Dorsal penile nerve block with ropivacaine and plain lubricating gel into urethra before rigid cystoscopy Dorsal Penile Nerve Block: Dorsal penile nerve block with 0.33% ropivacaine using 22-G needle in the sub-pubic space at the base of the penis Ropivacaine: 0.33% Ropivacaine administered around dorsal penile nerve using 22-G needle in the sub-pubic space at the base of the penis
Combination Group
n=86 Participants
Dorsal penile nerve block with ropivacaine and tetracaine gel into urethra before rigid cystoscopy Dorsal Penile Nerve Block: Dorsal penile nerve block with 0.33% ropivacaine using 22-G needle in the sub-pubic space at the base of the penis Ropivacaine: 0.33% Ropivacaine administered around dorsal penile nerve using 22-G needle in the sub-pubic space at the base of the penis Tetracaine: 1% Tetracaine gel instilled into urethra
Visual Analog Scale (VAS) for Pain
2 units on a scale
Interval 0.0 to 2.0
0 units on a scale
Interval 0.0 to 2.0
0 units on a scale
Interval 0.0 to 1.0

SECONDARY outcome

Timeframe: after withdrawal of cystoscope

A visual analog scale (VAS) ranging from 0 to 10 was used to assess the patients' pain during the procedure. 0 means no pain, 1 to 3 means mild pain, 4 to 7 means moderate pain, and 8 to 10 means severe pain. Patients were asked the VAS score to express the degree of pain at each time point.

Outcome measures

Outcome measures
Measure
Tetracaine Gel Group
n=86 Participants
Dorsal penile nerve block with saline and tetracaine gel into urethra before rigid cystoscopy Tetracaine: 1% Tetracaine gel instilled into urethra
Dorsal Penile Nerve Block Group
n=86 Participants
Dorsal penile nerve block with ropivacaine and plain lubricating gel into urethra before rigid cystoscopy Dorsal Penile Nerve Block: Dorsal penile nerve block with 0.33% ropivacaine using 22-G needle in the sub-pubic space at the base of the penis Ropivacaine: 0.33% Ropivacaine administered around dorsal penile nerve using 22-G needle in the sub-pubic space at the base of the penis
Combination Group
n=86 Participants
Dorsal penile nerve block with ropivacaine and tetracaine gel into urethra before rigid cystoscopy Dorsal Penile Nerve Block: Dorsal penile nerve block with 0.33% ropivacaine using 22-G needle in the sub-pubic space at the base of the penis Ropivacaine: 0.33% Ropivacaine administered around dorsal penile nerve using 22-G needle in the sub-pubic space at the base of the penis Tetracaine: 1% Tetracaine gel instilled into urethra
Visual Analog Scale (VAS) for Pain
0 units on a scale
Interval 0.0 to 0.0
0 units on a scale
Interval 0.0 to 0.0
0 units on a scale
Interval 0.0 to 0.0

SECONDARY outcome

Timeframe: before gel administration

Outcome measures

Outcome measures
Measure
Tetracaine Gel Group
n=86 Participants
Dorsal penile nerve block with saline and tetracaine gel into urethra before rigid cystoscopy Tetracaine: 1% Tetracaine gel instilled into urethra
Dorsal Penile Nerve Block Group
n=86 Participants
Dorsal penile nerve block with ropivacaine and plain lubricating gel into urethra before rigid cystoscopy Dorsal Penile Nerve Block: Dorsal penile nerve block with 0.33% ropivacaine using 22-G needle in the sub-pubic space at the base of the penis Ropivacaine: 0.33% Ropivacaine administered around dorsal penile nerve using 22-G needle in the sub-pubic space at the base of the penis
Combination Group
n=86 Participants
Dorsal penile nerve block with ropivacaine and tetracaine gel into urethra before rigid cystoscopy Dorsal Penile Nerve Block: Dorsal penile nerve block with 0.33% ropivacaine using 22-G needle in the sub-pubic space at the base of the penis Ropivacaine: 0.33% Ropivacaine administered around dorsal penile nerve using 22-G needle in the sub-pubic space at the base of the penis Tetracaine: 1% Tetracaine gel instilled into urethra
Heart Rate Before Gel Administration
75.0 Beats per minute
Standard Deviation 9.7
75.9 Beats per minute
Standard Deviation 9.4
73.6 Beats per minute
Standard Deviation 10.2

SECONDARY outcome

Timeframe: at cystoscopic inspection of penile and bulbar urethra

Outcome measures

Outcome measures
Measure
Tetracaine Gel Group
n=86 Participants
Dorsal penile nerve block with saline and tetracaine gel into urethra before rigid cystoscopy Tetracaine: 1% Tetracaine gel instilled into urethra
Dorsal Penile Nerve Block Group
n=86 Participants
Dorsal penile nerve block with ropivacaine and plain lubricating gel into urethra before rigid cystoscopy Dorsal Penile Nerve Block: Dorsal penile nerve block with 0.33% ropivacaine using 22-G needle in the sub-pubic space at the base of the penis Ropivacaine: 0.33% Ropivacaine administered around dorsal penile nerve using 22-G needle in the sub-pubic space at the base of the penis
Combination Group
n=86 Participants
Dorsal penile nerve block with ropivacaine and tetracaine gel into urethra before rigid cystoscopy Dorsal Penile Nerve Block: Dorsal penile nerve block with 0.33% ropivacaine using 22-G needle in the sub-pubic space at the base of the penis Ropivacaine: 0.33% Ropivacaine administered around dorsal penile nerve using 22-G needle in the sub-pubic space at the base of the penis Tetracaine: 1% Tetracaine gel instilled into urethra
Heart Rate at Cystoscopic Inspection of Penile and Bulbar Urthra
84.8 Beats per minute
Standard Deviation 11.7
83.8 Beats per minute
Standard Deviation 12.0
81.1 Beats per minute
Standard Deviation 10.4

SECONDARY outcome

Timeframe: at cystoscopic inspection of external sphincter

Outcome measures

Outcome measures
Measure
Tetracaine Gel Group
n=86 Participants
Dorsal penile nerve block with saline and tetracaine gel into urethra before rigid cystoscopy Tetracaine: 1% Tetracaine gel instilled into urethra
Dorsal Penile Nerve Block Group
n=86 Participants
Dorsal penile nerve block with ropivacaine and plain lubricating gel into urethra before rigid cystoscopy Dorsal Penile Nerve Block: Dorsal penile nerve block with 0.33% ropivacaine using 22-G needle in the sub-pubic space at the base of the penis Ropivacaine: 0.33% Ropivacaine administered around dorsal penile nerve using 22-G needle in the sub-pubic space at the base of the penis
Combination Group
n=86 Participants
Dorsal penile nerve block with ropivacaine and tetracaine gel into urethra before rigid cystoscopy Dorsal Penile Nerve Block: Dorsal penile nerve block with 0.33% ropivacaine using 22-G needle in the sub-pubic space at the base of the penis Ropivacaine: 0.33% Ropivacaine administered around dorsal penile nerve using 22-G needle in the sub-pubic space at the base of the penis Tetracaine: 1% Tetracaine gel instilled into urethra
Heart Rate at Cystoscopic Inspection of External Sphincter
96.7 Beats per minute
Standard Deviation 14.1
90.2 Beats per minute
Standard Deviation 14.9
86.2 Beats per minute
Standard Deviation 10.9

SECONDARY outcome

Timeframe: after withdrawal of cystoscope

Outcome measures

Outcome measures
Measure
Tetracaine Gel Group
n=86 Participants
Dorsal penile nerve block with saline and tetracaine gel into urethra before rigid cystoscopy Tetracaine: 1% Tetracaine gel instilled into urethra
Dorsal Penile Nerve Block Group
n=86 Participants
Dorsal penile nerve block with ropivacaine and plain lubricating gel into urethra before rigid cystoscopy Dorsal Penile Nerve Block: Dorsal penile nerve block with 0.33% ropivacaine using 22-G needle in the sub-pubic space at the base of the penis Ropivacaine: 0.33% Ropivacaine administered around dorsal penile nerve using 22-G needle in the sub-pubic space at the base of the penis
Combination Group
n=86 Participants
Dorsal penile nerve block with ropivacaine and tetracaine gel into urethra before rigid cystoscopy Dorsal Penile Nerve Block: Dorsal penile nerve block with 0.33% ropivacaine using 22-G needle in the sub-pubic space at the base of the penis Ropivacaine: 0.33% Ropivacaine administered around dorsal penile nerve using 22-G needle in the sub-pubic space at the base of the penis Tetracaine: 1% Tetracaine gel instilled into urethra
Heart Rate After Withdrawal of Cystoscope
76.7 Beats per minute
Standard Deviation 10.9
72.3 Beats per minute
Standard Deviation 10.0
71.6 Beats per minute
Standard Deviation 9.2

SECONDARY outcome

Timeframe: before gel administration

Outcome measures

Outcome measures
Measure
Tetracaine Gel Group
n=86 Participants
Dorsal penile nerve block with saline and tetracaine gel into urethra before rigid cystoscopy Tetracaine: 1% Tetracaine gel instilled into urethra
Dorsal Penile Nerve Block Group
n=86 Participants
Dorsal penile nerve block with ropivacaine and plain lubricating gel into urethra before rigid cystoscopy Dorsal Penile Nerve Block: Dorsal penile nerve block with 0.33% ropivacaine using 22-G needle in the sub-pubic space at the base of the penis Ropivacaine: 0.33% Ropivacaine administered around dorsal penile nerve using 22-G needle in the sub-pubic space at the base of the penis
Combination Group
n=86 Participants
Dorsal penile nerve block with ropivacaine and tetracaine gel into urethra before rigid cystoscopy Dorsal Penile Nerve Block: Dorsal penile nerve block with 0.33% ropivacaine using 22-G needle in the sub-pubic space at the base of the penis Ropivacaine: 0.33% Ropivacaine administered around dorsal penile nerve using 22-G needle in the sub-pubic space at the base of the penis Tetracaine: 1% Tetracaine gel instilled into urethra
Mean Arterial Pressure Before Gel Administration
95.3 mmHg
Standard Deviation 10.2
96.6 mmHg
Standard Deviation 9.7
95.1 mmHg
Standard Deviation 9.9

SECONDARY outcome

Timeframe: at cystoscopic inspection of penile and bulbar urthra

Outcome measures

Outcome measures
Measure
Tetracaine Gel Group
n=86 Participants
Dorsal penile nerve block with saline and tetracaine gel into urethra before rigid cystoscopy Tetracaine: 1% Tetracaine gel instilled into urethra
Dorsal Penile Nerve Block Group
n=86 Participants
Dorsal penile nerve block with ropivacaine and plain lubricating gel into urethra before rigid cystoscopy Dorsal Penile Nerve Block: Dorsal penile nerve block with 0.33% ropivacaine using 22-G needle in the sub-pubic space at the base of the penis Ropivacaine: 0.33% Ropivacaine administered around dorsal penile nerve using 22-G needle in the sub-pubic space at the base of the penis
Combination Group
n=86 Participants
Dorsal penile nerve block with ropivacaine and tetracaine gel into urethra before rigid cystoscopy Dorsal Penile Nerve Block: Dorsal penile nerve block with 0.33% ropivacaine using 22-G needle in the sub-pubic space at the base of the penis Ropivacaine: 0.33% Ropivacaine administered around dorsal penile nerve using 22-G needle in the sub-pubic space at the base of the penis Tetracaine: 1% Tetracaine gel instilled into urethra
Mean Arterial Pressure at Cystoscopic Inspection of Penile and Bulbar Urthra
100 mmHg
Standard Deviation 10.6
99.8 mmHg
Standard Deviation 10.1
98.2 mmHg
Standard Deviation 9.0

SECONDARY outcome

Timeframe: at cystoscopic inspection of external sphincter

Outcome measures

Outcome measures
Measure
Tetracaine Gel Group
n=86 Participants
Dorsal penile nerve block with saline and tetracaine gel into urethra before rigid cystoscopy Tetracaine: 1% Tetracaine gel instilled into urethra
Dorsal Penile Nerve Block Group
n=86 Participants
Dorsal penile nerve block with ropivacaine and plain lubricating gel into urethra before rigid cystoscopy Dorsal Penile Nerve Block: Dorsal penile nerve block with 0.33% ropivacaine using 22-G needle in the sub-pubic space at the base of the penis Ropivacaine: 0.33% Ropivacaine administered around dorsal penile nerve using 22-G needle in the sub-pubic space at the base of the penis
Combination Group
n=86 Participants
Dorsal penile nerve block with ropivacaine and tetracaine gel into urethra before rigid cystoscopy Dorsal Penile Nerve Block: Dorsal penile nerve block with 0.33% ropivacaine using 22-G needle in the sub-pubic space at the base of the penis Ropivacaine: 0.33% Ropivacaine administered around dorsal penile nerve using 22-G needle in the sub-pubic space at the base of the penis Tetracaine: 1% Tetracaine gel instilled into urethra
Mean Arterial Pressure at Cystoscopic Inspection of External Sphincter
113.7 mmHg
Standard Deviation 11.7
105.8 mmHg
Standard Deviation 10.5
104.8 mmHg
Standard Deviation 9.2

SECONDARY outcome

Timeframe: after withdrawal of cystoscope

Outcome measures

Outcome measures
Measure
Tetracaine Gel Group
n=86 Participants
Dorsal penile nerve block with saline and tetracaine gel into urethra before rigid cystoscopy Tetracaine: 1% Tetracaine gel instilled into urethra
Dorsal Penile Nerve Block Group
n=86 Participants
Dorsal penile nerve block with ropivacaine and plain lubricating gel into urethra before rigid cystoscopy Dorsal Penile Nerve Block: Dorsal penile nerve block with 0.33% ropivacaine using 22-G needle in the sub-pubic space at the base of the penis Ropivacaine: 0.33% Ropivacaine administered around dorsal penile nerve using 22-G needle in the sub-pubic space at the base of the penis
Combination Group
n=86 Participants
Dorsal penile nerve block with ropivacaine and tetracaine gel into urethra before rigid cystoscopy Dorsal Penile Nerve Block: Dorsal penile nerve block with 0.33% ropivacaine using 22-G needle in the sub-pubic space at the base of the penis Ropivacaine: 0.33% Ropivacaine administered around dorsal penile nerve using 22-G needle in the sub-pubic space at the base of the penis Tetracaine: 1% Tetracaine gel instilled into urethra
Mean Arterial Pressure After Withdrawal of Cystoscope
99.3 mmHg
Standard Deviation 9.8
95.7 mmHg
Standard Deviation 8.4
95.2 mmHg
Standard Deviation 8.6

SECONDARY outcome

Timeframe: before gel administration

Outcome measures

Outcome measures
Measure
Tetracaine Gel Group
n=86 Participants
Dorsal penile nerve block with saline and tetracaine gel into urethra before rigid cystoscopy Tetracaine: 1% Tetracaine gel instilled into urethra
Dorsal Penile Nerve Block Group
n=86 Participants
Dorsal penile nerve block with ropivacaine and plain lubricating gel into urethra before rigid cystoscopy Dorsal Penile Nerve Block: Dorsal penile nerve block with 0.33% ropivacaine using 22-G needle in the sub-pubic space at the base of the penis Ropivacaine: 0.33% Ropivacaine administered around dorsal penile nerve using 22-G needle in the sub-pubic space at the base of the penis
Combination Group
n=86 Participants
Dorsal penile nerve block with ropivacaine and tetracaine gel into urethra before rigid cystoscopy Dorsal Penile Nerve Block: Dorsal penile nerve block with 0.33% ropivacaine using 22-G needle in the sub-pubic space at the base of the penis Ropivacaine: 0.33% Ropivacaine administered around dorsal penile nerve using 22-G needle in the sub-pubic space at the base of the penis Tetracaine: 1% Tetracaine gel instilled into urethra
Oxygen Saturation by Pulse Before Gel Administration
99 percentage
Interval 98.0 to 99.0
98 percentage
Interval 97.0 to 99.0
99 percentage
Interval 98.0 to 99.0

SECONDARY outcome

Timeframe: at cystoscopic inspection of penile and bulbar urthra

Outcome measures

Outcome measures
Measure
Tetracaine Gel Group
n=86 Participants
Dorsal penile nerve block with saline and tetracaine gel into urethra before rigid cystoscopy Tetracaine: 1% Tetracaine gel instilled into urethra
Dorsal Penile Nerve Block Group
n=86 Participants
Dorsal penile nerve block with ropivacaine and plain lubricating gel into urethra before rigid cystoscopy Dorsal Penile Nerve Block: Dorsal penile nerve block with 0.33% ropivacaine using 22-G needle in the sub-pubic space at the base of the penis Ropivacaine: 0.33% Ropivacaine administered around dorsal penile nerve using 22-G needle in the sub-pubic space at the base of the penis
Combination Group
n=86 Participants
Dorsal penile nerve block with ropivacaine and tetracaine gel into urethra before rigid cystoscopy Dorsal Penile Nerve Block: Dorsal penile nerve block with 0.33% ropivacaine using 22-G needle in the sub-pubic space at the base of the penis Ropivacaine: 0.33% Ropivacaine administered around dorsal penile nerve using 22-G needle in the sub-pubic space at the base of the penis Tetracaine: 1% Tetracaine gel instilled into urethra
Oxygen Saturation by Pulse at Cystoscopic Inspection of Penile and Bulbar Urthra
99 percentage
Interval 98.0 to 99.0
98 percentage
Interval 98.0 to 99.0
99 percentage
Interval 98.0 to 99.0

SECONDARY outcome

Timeframe: at cystoscopic inspection of external sphincter

Outcome measures

Outcome measures
Measure
Tetracaine Gel Group
n=86 Participants
Dorsal penile nerve block with saline and tetracaine gel into urethra before rigid cystoscopy Tetracaine: 1% Tetracaine gel instilled into urethra
Dorsal Penile Nerve Block Group
n=86 Participants
Dorsal penile nerve block with ropivacaine and plain lubricating gel into urethra before rigid cystoscopy Dorsal Penile Nerve Block: Dorsal penile nerve block with 0.33% ropivacaine using 22-G needle in the sub-pubic space at the base of the penis Ropivacaine: 0.33% Ropivacaine administered around dorsal penile nerve using 22-G needle in the sub-pubic space at the base of the penis
Combination Group
n=86 Participants
Dorsal penile nerve block with ropivacaine and tetracaine gel into urethra before rigid cystoscopy Dorsal Penile Nerve Block: Dorsal penile nerve block with 0.33% ropivacaine using 22-G needle in the sub-pubic space at the base of the penis Ropivacaine: 0.33% Ropivacaine administered around dorsal penile nerve using 22-G needle in the sub-pubic space at the base of the penis Tetracaine: 1% Tetracaine gel instilled into urethra
Oxygen Saturation by Pulse at Cystoscopic Inspection of External Sphincter
99 percentage
Interval 98.0 to 99.0
98 percentage
Interval 97.0 to 99.0
99 percentage
Interval 98.0 to 99.0

SECONDARY outcome

Timeframe: after withdrawal of cystoscope

Outcome measures

Outcome measures
Measure
Tetracaine Gel Group
n=86 Participants
Dorsal penile nerve block with saline and tetracaine gel into urethra before rigid cystoscopy Tetracaine: 1% Tetracaine gel instilled into urethra
Dorsal Penile Nerve Block Group
n=86 Participants
Dorsal penile nerve block with ropivacaine and plain lubricating gel into urethra before rigid cystoscopy Dorsal Penile Nerve Block: Dorsal penile nerve block with 0.33% ropivacaine using 22-G needle in the sub-pubic space at the base of the penis Ropivacaine: 0.33% Ropivacaine administered around dorsal penile nerve using 22-G needle in the sub-pubic space at the base of the penis
Combination Group
n=86 Participants
Dorsal penile nerve block with ropivacaine and tetracaine gel into urethra before rigid cystoscopy Dorsal Penile Nerve Block: Dorsal penile nerve block with 0.33% ropivacaine using 22-G needle in the sub-pubic space at the base of the penis Ropivacaine: 0.33% Ropivacaine administered around dorsal penile nerve using 22-G needle in the sub-pubic space at the base of the penis Tetracaine: 1% Tetracaine gel instilled into urethra
Oxygen Saturation by Pulse After Withdrawal of Cystoscope
99 percentage
Interval 98.0 to 99.0
98 percentage
Interval 98.0 to 99.0
99 percentage
Interval 98.0 to 99.0

SECONDARY outcome

Timeframe: before gel administration

Outcome measures

Outcome measures
Measure
Tetracaine Gel Group
n=86 Participants
Dorsal penile nerve block with saline and tetracaine gel into urethra before rigid cystoscopy Tetracaine: 1% Tetracaine gel instilled into urethra
Dorsal Penile Nerve Block Group
n=86 Participants
Dorsal penile nerve block with ropivacaine and plain lubricating gel into urethra before rigid cystoscopy Dorsal Penile Nerve Block: Dorsal penile nerve block with 0.33% ropivacaine using 22-G needle in the sub-pubic space at the base of the penis Ropivacaine: 0.33% Ropivacaine administered around dorsal penile nerve using 22-G needle in the sub-pubic space at the base of the penis
Combination Group
n=86 Participants
Dorsal penile nerve block with ropivacaine and tetracaine gel into urethra before rigid cystoscopy Dorsal Penile Nerve Block: Dorsal penile nerve block with 0.33% ropivacaine using 22-G needle in the sub-pubic space at the base of the penis Ropivacaine: 0.33% Ropivacaine administered around dorsal penile nerve using 22-G needle in the sub-pubic space at the base of the penis Tetracaine: 1% Tetracaine gel instilled into urethra
Breath Rate Before Gel Administration
19.8 times per minute
Standard Deviation 1.1
19.6 times per minute
Standard Deviation 1.6
19.5 times per minute
Standard Deviation 1.3

SECONDARY outcome

Timeframe: at cystoscopic inspection of penile and bulbar Urthra

Outcome measures

Outcome measures
Measure
Tetracaine Gel Group
n=86 Participants
Dorsal penile nerve block with saline and tetracaine gel into urethra before rigid cystoscopy Tetracaine: 1% Tetracaine gel instilled into urethra
Dorsal Penile Nerve Block Group
n=86 Participants
Dorsal penile nerve block with ropivacaine and plain lubricating gel into urethra before rigid cystoscopy Dorsal Penile Nerve Block: Dorsal penile nerve block with 0.33% ropivacaine using 22-G needle in the sub-pubic space at the base of the penis Ropivacaine: 0.33% Ropivacaine administered around dorsal penile nerve using 22-G needle in the sub-pubic space at the base of the penis
Combination Group
n=86 Participants
Dorsal penile nerve block with ropivacaine and tetracaine gel into urethra before rigid cystoscopy Dorsal Penile Nerve Block: Dorsal penile nerve block with 0.33% ropivacaine using 22-G needle in the sub-pubic space at the base of the penis Ropivacaine: 0.33% Ropivacaine administered around dorsal penile nerve using 22-G needle in the sub-pubic space at the base of the penis Tetracaine: 1% Tetracaine gel instilled into urethra
Breath Rate at Cystoscopic Inspection of Penile and Bulbar Urthra
20.0 times per minute
Standard Deviation 1.2
19.8 times per minute
Standard Deviation 1.5
19.6 times per minute
Standard Deviation 1.3

SECONDARY outcome

Timeframe: at cystoscopic inspection of external sphincter

Outcome measures

Outcome measures
Measure
Tetracaine Gel Group
n=86 Participants
Dorsal penile nerve block with saline and tetracaine gel into urethra before rigid cystoscopy Tetracaine: 1% Tetracaine gel instilled into urethra
Dorsal Penile Nerve Block Group
n=86 Participants
Dorsal penile nerve block with ropivacaine and plain lubricating gel into urethra before rigid cystoscopy Dorsal Penile Nerve Block: Dorsal penile nerve block with 0.33% ropivacaine using 22-G needle in the sub-pubic space at the base of the penis Ropivacaine: 0.33% Ropivacaine administered around dorsal penile nerve using 22-G needle in the sub-pubic space at the base of the penis
Combination Group
n=86 Participants
Dorsal penile nerve block with ropivacaine and tetracaine gel into urethra before rigid cystoscopy Dorsal Penile Nerve Block: Dorsal penile nerve block with 0.33% ropivacaine using 22-G needle in the sub-pubic space at the base of the penis Ropivacaine: 0.33% Ropivacaine administered around dorsal penile nerve using 22-G needle in the sub-pubic space at the base of the penis Tetracaine: 1% Tetracaine gel instilled into urethra
Breath Rate at Cystoscopic Inspection of External Sphincter
20.1 times per minute
Standard Deviation 1.3
19.8 times per minute
Standard Deviation 1.7
19.8 times per minute
Standard Deviation 1.5

SECONDARY outcome

Timeframe: after withdrawal of cystoscope

Outcome measures

Outcome measures
Measure
Tetracaine Gel Group
n=86 Participants
Dorsal penile nerve block with saline and tetracaine gel into urethra before rigid cystoscopy Tetracaine: 1% Tetracaine gel instilled into urethra
Dorsal Penile Nerve Block Group
n=86 Participants
Dorsal penile nerve block with ropivacaine and plain lubricating gel into urethra before rigid cystoscopy Dorsal Penile Nerve Block: Dorsal penile nerve block with 0.33% ropivacaine using 22-G needle in the sub-pubic space at the base of the penis Ropivacaine: 0.33% Ropivacaine administered around dorsal penile nerve using 22-G needle in the sub-pubic space at the base of the penis
Combination Group
n=86 Participants
Dorsal penile nerve block with ropivacaine and tetracaine gel into urethra before rigid cystoscopy Dorsal Penile Nerve Block: Dorsal penile nerve block with 0.33% ropivacaine using 22-G needle in the sub-pubic space at the base of the penis Ropivacaine: 0.33% Ropivacaine administered around dorsal penile nerve using 22-G needle in the sub-pubic space at the base of the penis Tetracaine: 1% Tetracaine gel instilled into urethra
Breath Rate After Withdrawal of Cystoscope
19.7 times per minute
Standard Deviation 1.2
19.4 times per minute
Standard Deviation 1.5
19.4 times per minute
Standard Deviation 1.2

Adverse Events

Tetracaine Group

Serious events: 0 serious events
Other events: 0 other events
Deaths: 0 deaths

DPNB Group

Serious events: 0 serious events
Other events: 0 other events
Deaths: 0 deaths

Combination Group

Serious events: 0 serious events
Other events: 0 other events
Deaths: 0 deaths

Serious adverse events

Adverse event data not reported

Other adverse events

Adverse event data not reported

Additional Information

Dr. Guizhi Du, Associate professor

West China Hospital, Department of Anesthesiology

Phone: +86 18980602213

Results disclosure agreements

  • Principal investigator is a sponsor employee
  • Publication restrictions are in place