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Article: Second generation of temporary implantable nitinol device (iTind) in men with LUTS: 2 year results of the MT-02-study

TitleSecond generation of temporary implantable nitinol device (iTind) in men with LUTS: 2 year results of the MT-02-study
Authors
KeywordsBPO
LUTS
iTIND
Urethral implantable device
Minimal invasive techniques
Issue Date2020
PublisherSpringer Verlag. The Journal's web site is located at https://link.springer.com/journal/345
Citation
World Journal of Urology, 2020, Epub 2020-03-02 How to Cite?
AbstractObjectives: Assessing medium-term functional results of a novel minimally-invasive treatment for lower urinary tract symptoms due to BPO with the second generation of the temporary implantable nitinol device (iTind; Medi-Tate Ltd®, Israel): 2-year follow-up of a single-arm, prospective, international multicenter study. Further, we aimed to identify preoperative baseline parameters predicting response to iTind treatment. Methods: Following local ethical committee approval in every participating centre, 81 men with symptomatic BPO (IPSS ≥ 10, peak urinary flow < 12 ml/s, and prostate volume < 75 ml) were enrolled in this study. Patients with PVR > 250 ml, obstructive median lobe, previous prostatic surgery, confounding bladder or sphincter dysfunction based on medical history, active urinary infection and unable to interrupt antithrombotic or antiplatelet treatment were exclusion criteria. A wash-out period of 1 month for alpha-blockers and 6 months for 5-ARIs was mandatory to avoid confounders. The procedure was performed as previously described: implantation under light sedation and removal 5–7 days later with topical sedation. Patients were assessed for perioperative results including OR-time, pain (VAS) and complications (Clavien–Dindo-Grading System); and for functional results (PVR, Qmax, IPSS) and quality of life (QoL) including sexual and ejaculatory function using two yes/no questions. Follow-up assessments were done at 1, 3, and 6 months, and 1 and 2 years. Results: Of the 81 patients initially enrolled in this study, follow-up included 67 men at 1 year and 51 men at 2 years. For the 51 men included in the present analysis, the median age was 65 years, median prostate volume 37 ml (range 16–65 ml). Baseline values for IPSS and QoL were 20.51 ± 4.58, 3.96 ± 0.87. Qmax and PVR were 7.62 ± 2.25 ml/s and 65.84 ± 38.46, respectively. No intraoperative complications were observed and the average pain level recorded on the visual analogue scale (VAS) was 3.2 ± 1.6. A significant reduction in symptoms and improvement in urinary flow was observed (p < 0.0001) at all assessment points: IPSS-score and QoL improved to 8.51 ± 5.51 and 1.76 ± 1.32, respectively; and Qmax increased to 16.00 ± 7.43 ml/s. None of the patients who were previously sexually active reported a deterioration in sexual or ejaculatory functions according to two yes/no questions over the follow-up period. Excluding the patients lost at follow-up, five patients underwent surgery between 12 and 24 months. Upon investigation, it was discovered that four of the five patients requiring surgery had median lobes and were protocol deviators. A failure analysis was carried out for all 81 patients in order to identify baseline parameters that could predict treatment failure. 58.33% of patients in the failure group (7 out of 12) had median lobes which was found to be statistically significant (p < 0.0001). None of the other preoperative variables (age, prostate volume, IPSS scores, Qmax, PVR, and PSA) were found to predict response to iTind treatment. Conclusion: iTind treatment for BPO-related LUTS showed marked and durable reduction in symptoms and improvement of functional parameters and quality of life at 24 months of follow-up. It was found that median lobe may predict failure of iTind treatment. According to the yes/no questions, ejaculatory and sexual functions do not seem to be effected following treatment, however, this finding must be supported with further studies using the accepted tools.
Persistent Identifierhttp://hdl.handle.net/10722/284121
ISSN
2019 Impact Factor: 3.217
2015 SCImago Journal Rankings: 1.072

 

DC FieldValueLanguage
dc.contributor.authorKadner, G-
dc.contributor.authorValerio, M-
dc.contributor.authorGiannakis, I-
dc.contributor.authorManit, A-
dc.contributor.authorLumen, N-
dc.contributor.authorHo, BSH-
dc.contributor.authorAlonso, S-
dc.contributor.authorSchulman, C-
dc.contributor.authorBarber, N-
dc.contributor.authorAmparore, D-
dc.contributor.authorPorpiglia, F-
dc.date.accessioned2020-07-20T05:56:15Z-
dc.date.available2020-07-20T05:56:15Z-
dc.date.issued2020-
dc.identifier.citationWorld Journal of Urology, 2020, Epub 2020-03-02-
dc.identifier.issn0724-4983-
dc.identifier.urihttp://hdl.handle.net/10722/284121-
dc.description.abstractObjectives: Assessing medium-term functional results of a novel minimally-invasive treatment for lower urinary tract symptoms due to BPO with the second generation of the temporary implantable nitinol device (iTind; Medi-Tate Ltd®, Israel): 2-year follow-up of a single-arm, prospective, international multicenter study. Further, we aimed to identify preoperative baseline parameters predicting response to iTind treatment. Methods: Following local ethical committee approval in every participating centre, 81 men with symptomatic BPO (IPSS ≥ 10, peak urinary flow < 12 ml/s, and prostate volume < 75 ml) were enrolled in this study. Patients with PVR > 250 ml, obstructive median lobe, previous prostatic surgery, confounding bladder or sphincter dysfunction based on medical history, active urinary infection and unable to interrupt antithrombotic or antiplatelet treatment were exclusion criteria. A wash-out period of 1 month for alpha-blockers and 6 months for 5-ARIs was mandatory to avoid confounders. The procedure was performed as previously described: implantation under light sedation and removal 5–7 days later with topical sedation. Patients were assessed for perioperative results including OR-time, pain (VAS) and complications (Clavien–Dindo-Grading System); and for functional results (PVR, Qmax, IPSS) and quality of life (QoL) including sexual and ejaculatory function using two yes/no questions. Follow-up assessments were done at 1, 3, and 6 months, and 1 and 2 years. Results: Of the 81 patients initially enrolled in this study, follow-up included 67 men at 1 year and 51 men at 2 years. For the 51 men included in the present analysis, the median age was 65 years, median prostate volume 37 ml (range 16–65 ml). Baseline values for IPSS and QoL were 20.51 ± 4.58, 3.96 ± 0.87. Qmax and PVR were 7.62 ± 2.25 ml/s and 65.84 ± 38.46, respectively. No intraoperative complications were observed and the average pain level recorded on the visual analogue scale (VAS) was 3.2 ± 1.6. A significant reduction in symptoms and improvement in urinary flow was observed (p < 0.0001) at all assessment points: IPSS-score and QoL improved to 8.51 ± 5.51 and 1.76 ± 1.32, respectively; and Qmax increased to 16.00 ± 7.43 ml/s. None of the patients who were previously sexually active reported a deterioration in sexual or ejaculatory functions according to two yes/no questions over the follow-up period. Excluding the patients lost at follow-up, five patients underwent surgery between 12 and 24 months. Upon investigation, it was discovered that four of the five patients requiring surgery had median lobes and were protocol deviators. A failure analysis was carried out for all 81 patients in order to identify baseline parameters that could predict treatment failure. 58.33% of patients in the failure group (7 out of 12) had median lobes which was found to be statistically significant (p < 0.0001). None of the other preoperative variables (age, prostate volume, IPSS scores, Qmax, PVR, and PSA) were found to predict response to iTind treatment. Conclusion: iTind treatment for BPO-related LUTS showed marked and durable reduction in symptoms and improvement of functional parameters and quality of life at 24 months of follow-up. It was found that median lobe may predict failure of iTind treatment. According to the yes/no questions, ejaculatory and sexual functions do not seem to be effected following treatment, however, this finding must be supported with further studies using the accepted tools.-
dc.languageeng-
dc.publisherSpringer Verlag. The Journal's web site is located at https://link.springer.com/journal/345-
dc.relation.ispartofWorld Journal of Urology-
dc.rightsThis is a post-peer-review, pre-copyedit version of an article published in [insert journal title]. The final authenticated version is available online at: http://dx.doi.org/[insert DOI]-
dc.subjectBPO-
dc.subjectLUTS-
dc.subjectiTIND-
dc.subjectUrethral implantable device-
dc.subjectMinimal invasive techniques-
dc.titleSecond generation of temporary implantable nitinol device (iTind) in men with LUTS: 2 year results of the MT-02-study-
dc.typeArticle-
dc.identifier.emailHo, BSH: hobrian@hku.hk-
dc.description.naturelink_to_subscribed_fulltext-
dc.identifier.doi10.1007/s00345-020-03140-z-
dc.identifier.scopuseid_2-s2.0-85081009166-
dc.identifier.hkuros311062-
dc.identifier.volumeEpub 2020-03-02-
dc.publisher.placeGermany-

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