Evidence map›Paper›PMID 30658612›Full record

ArticleBMC cancer2019

Free testosterone value before radical prostatectomy is related to oncologic outcomes and post-operative erectile function.

Tian Li, Xiangzhou Sun, Liheng Chen

Abstract read
In one paragraph

Article in BMC cancer, 2019. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 6 papers, 1 of them a synthesis that pooled it.

0numbers the graph read from it
0cells of the map it votes in
6citing papers in PubMed, 1 pooled it
–field-weighted citation impact
1 · What the graph read from it

What it found

Each row is one number read from the abstract, on the scale the paper reported it, with its interval. Left of the dashed line favours the treatment, right favours the comparator. Under each row is the sentence it came from. New to these charts? A ten-minute tutorial.

The abstract states no effect estimate the extractor could read, or names no intervention and outcome on the map, so this paper lights no cell and moves no belief. It is still indexed, cited and linked below.

2 · The registry

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Neither the registry nor the abstract names a trial number. If this is a trial report, that itself is worth knowing.

3 · Its place in the literature

Who cites it

6 citing papers in PubMed, 1 synthesis or guideline pooled it.

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4 · The record

Corrections and comments

PubMed lists nothing against this paper. Absence here is not a guarantee, only a check that was made.

5 · Who and what money

Authors and funding

3 authors.

Tian LiDepartment of Urology, the Fifth Affiliated Hospital of Guangzhou Medical University, 621 Gangwan RD, Huangpu district, Guangzhou, 510700, China. tianliedit@163.com.ORCID http://orcid.org/0000-0002-3488-1366
Xiangzhou SunDepartment of Urology, the First Affiliated Hospital of Sun Yat-Sen University, 58 Zhongshan Second Rd, Yuexiu Dis, Guangzhou, 510080, China.
Liheng ChenDepartment of Biomedical Engineering, Key Laboratory of Biomaterials of Guangdong Higher Education Institutes, Jinan University, 601 Huangpu Rd, Tianhe Dis, Guangzhou, 510632, China.

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

purposeTo investigate whether free testosterone (FT) prior to radical prostatectomy was related to post-operative oncologic outcomes, erectile function and continence.

methodsThe data of 586 patients with available information underwent treatment in our center was retrospectively reviewed. Total testosterone (TT) was tested by chemiluminescence immunoassay, and FT value was calculated using Vermeulen's formula. Post-operative continence and erectile function were evaluated by the requirement of pad and the IIEF-5 score at 12 months.

resultsThe median TT and FT value was 344 ng/dL (interquartile, IQR 314-374) and 6.9 ng/dL (IQR 6.4-7.3), and 106 patients (18.1%) and 152 patients (25.9%) were evaluated as having low TT and low FT based on current guidelines. Low TT and FT value were both related to older age (both p < 0.001), concomitant diabetes (p = 0.018 & 0.049), higher possibility of pre-operative erectile dysfunction (ED, both p < 0.001), higher pre-operative PSA value (both p < 0.001), higher clinical stage (both p < 0.001) and higher Gleason score in biopsy (both p < 0.001). Low FT was related to higher risk for pT3 (p = 0.020) and high Gleason score (p = 0.011) in logistic regression. The median follow-up duration was 52 moths (IQR 29-67) and FT was found to be an independent risk factor for biochemical recurrence (p = 0.005). In logistic regression TT was related to pre-operative ED (p = 0.010) and FT was related to post-operative ED (p = 0.001).

conclusionLow FT value before radical prostatectomy was related to adverse pathological outcomes, biochemical recurrence and post-operative ED.

Indexed as

AgedAge FactorsErectile DysfunctionHumansMaleMiddle AgedNeoplasm GradingPostoperative ComplicationsPreoperative PeriodProstatectomyProstatic NeoplasmsRetrospective StudiesRisk FactorsTestosteroneTestosteroneBiochemical recurrence (BCR)Erectile dysfunction (ED)Free testosterone (FT)Prostate cancer (PCa)Radical prostatectomyTotal testosterone (TT)

Identifiers

PMID30658612
PMCPMC6339281

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Read under generation 80e0d062 · epoch 390. Bibliography from PubMed, PubMed Central and OpenAlex; grants from NIH RePORTER; trial links from ClinicalTrials.gov; estimates, votes and beliefs from the OpenQuestion graph.