Evaluation of the Relationship Between Vaginal and Lower Urinary Tract Microbiomes and Infection After Hysterectomy
tiistai 14. elokuuta 2018 päivittänyt: John A. Occhino, Mayo Clinic
Evaluation of Vaginal and Urinary Microbiome Markers as Predictors of Post-Surgical Urinary Tract Infection
The purpose of this study is to learn more about the microbes (bacteria) that live in the vagina and the bladder.
The investigators are doing this research study to understand the relationship between microbes (the microbiome) and the occurrence of urinary tract infection following surgical removal of the uterus and pelvic organ prolapse repair.
The investigators expect Lactobacillus and Gardnerella will be the dominant organisms for most women.
Non-Lactobacillus dominant microbiome communities will be more common in women who ultimately develop postoperative urinary tract infection.
Tutkimuksen yleiskatsaus
Tila
Valmis
Yksityiskohtainen kuvaus
The goal of this pilot study is to characterize the presence and stability of the microbial community in the vagina and lower urinary tract in a cohort of 20 postmenopausal women undergoing transvaginal hysterectomy with pelvic reconstruction for pelvic organ prolapse.
The investigators intend to collect longitudinal samples in the preoperative, intraoperative, and postoperative time period in order to understand the pervasiveness of the microbes in the vagina and lower urinary tract, and to identify, in a very preliminary way, particular microbes that may be associated with postoperative urinary tract infection.
Opintotyyppi
Havainnollistava
Ilmoittautuminen (Todellinen)
25
Yhteystiedot ja paikat
Tässä osiossa on tutkimuksen suorittajien yhteystiedot ja tiedot siitä, missä tämä tutkimus suoritetaan.
Opiskelupaikat
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Minnesota
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Rochester, Minnesota, Yhdysvallat, 55905
- Mayo Clinic in Rochester
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Osallistumiskriteerit
Tutkijat etsivät ihmisiä, jotka sopivat tiettyyn kuvaukseen, jota kutsutaan kelpoisuuskriteereiksi. Joitakin esimerkkejä näistä kriteereistä ovat henkilön yleinen terveydentila tai aiemmat hoidot.
Kelpoisuusvaatimukset
Opintokelpoiset iät
40 vuotta ja vanhemmat (Aikuinen, Vanhempi Aikuinen)
Hyväksyy terveitä vapaaehtoisia
Ei
Sukupuolet, jotka voivat opiskella
Nainen
Näytteenottomenetelmä
Ei-todennäköisyysnäyte
Tutkimusväestö
Postmenopausal women undergoing pelvic reconstructive surgery for pelvic organ prolapse.
Kuvaus
Inclusion Criteria:
- Postmenopausal females (defined by cessation of menses for one full year)
- Planned surgical correction of pelvic organ prolapse with transvaginal hysterectomy and concomitant pelvic reconstruction for uterovaginal prolapse
- Scheduled surgery date within 4 weeks of study consent
- Physically able to self-collect vaginal swabs and clean-catch urine samples
Exclusion Criteria:
- Women who are premenopausal, pregnant or nursing
- Currently taking or have taken antibiotics in the past 2 weeks
- History of recurrent urinary tract infections
- History of mesh complications, including erosion/extrusion
- Non-vaginal approach to hysterectomy or prolapse repair
Opintosuunnitelma
Tässä osiossa on tietoja tutkimussuunnitelmasta, mukaan lukien kuinka tutkimus on suunniteltu ja mitä tutkimuksella mitataan.
Miten tutkimus on suunniteltu?
Suunnittelun yksityiskohdat
Mitä tutkimuksessa mitataan?
Ensisijaiset tulostoimenpiteet
Tulosmittaus |
Toimenpiteen kuvaus |
Aikaikkuna |
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Identification of baseline vaginal microbiome through DNA extraction and 16S rRNA gene sequencing
Aikaikkuna: 1 day (Pre-operative Urogynecology surgical consultation visit)
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Vaginal swabs will be collected from participants at the surgical consultation visit.
DNA extraction and 16S rRNA gene sequencing undertaken to analyze the microbial community composition of the vagina.
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1 day (Pre-operative Urogynecology surgical consultation visit)
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Identification of baseline urinary tract microbiome through DNA extraction and 16S rRNA gene sequencing
Aikaikkuna: 1 day (Pre-operative Urogynecology surgical consultation visit)
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Urine sample will be collected from participants at the surgical consultation visit.
DNA extraction and 16S rRNA gene sequencing undertaken to analyze the microbial community composition of the urinary tract.
|
1 day (Pre-operative Urogynecology surgical consultation visit)
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Identification of pre-operative vaginal microbiome through DNA extraction and 16S rRNA gene sequencing
Aikaikkuna: Within 4 weeks of baseline sample collected at Urogynecology surgical consultation visit)
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Vaginal swabs will be collected from participants on the day of surgery, prior to entering the surgical suite.
DNA extraction and 16S rRNA gene sequencing undertaken to analyze the microbial community composition of the vagina.
|
Within 4 weeks of baseline sample collected at Urogynecology surgical consultation visit)
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Identification of pre-operative urinary tract microbiome through DNA extraction and 16S rRNA gene sequencing
Aikaikkuna: Within 4 weeks of baseline sample collected at Urogynecology surgical consultation visit)
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Urine sample will be collected from participants on the day of surgery, prior to entering the surgical suite.
DNA extraction and 16S rRNA gene sequencing undertaken to analyze the microbial community composition of the urinary tract.
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Within 4 weeks of baseline sample collected at Urogynecology surgical consultation visit)
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Identification of the immediate postoperative vaginal microbiome through DNA extraction and 16S rRNA gene sequencing
Aikaikkuna: Within 6 hours of collecting the pre-operative sample
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Vaginal swabs will be collected from participants at the end of the surgical procedure.
DNA extraction and 16S rRNA gene sequencing undertaken to analyze the microbial community composition of the vagina.
|
Within 6 hours of collecting the pre-operative sample
|
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Identification of the immediate postoperative urinary tract microbiome through DNA extraction and 16S rRNA gene sequencing
Aikaikkuna: Within 6 hours of collecting the pre-operative sample
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Urine sample will be collected from participants at the end of the surgical procedure.
DNA extraction and 16S rRNA gene sequencing undertaken to analyze the microbial community composition of the urinary tract.
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Within 6 hours of collecting the pre-operative sample
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Identification of the postoperative vaginal microbiome through DNA extraction and 16S rRNA gene sequencing
Aikaikkuna: 12-18 hours after surgery
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Vaginal swabs will be collected from participants the morning following surgery, after removal of the vaginal packing.
DNA extraction and 16S rRNA gene sequencing undertaken to analyze the microbial community composition of the vagina.
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12-18 hours after surgery
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Identification of the postoperative urinary tract microbiome through DNA extraction and 16S rRNA gene sequencing
Aikaikkuna: 12-18 hours after surgery
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Urine sample will be collected from participants the morning following surgery, after removal of the vaginal packing.
DNA extraction and 16S rRNA gene sequencing undertaken to analyze the microbial community composition of the urinary tract.
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12-18 hours after surgery
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Identification of vaginal microbiome in the setting of postoperative urinary tract infection through DNA extraction and 16S rRNA gene sequencing
Aikaikkuna: Within the first 6 weeks after surgery
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Vaginal swabs will be collected at the onset of symptomatic urinary tract infection during the time period between hospital dismissal and 6-week postoperative surgical visit.
DNA extraction and 16S rRNA gene sequencing undertaken to analyze the microbial community composition in the vagina in the setting of urinary tract infection and compare to microbiome of vagina during the perioperative period.
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Within the first 6 weeks after surgery
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Identification of urinary tract microbiome in the setting of postoperative urinary tract infection through DNA extraction and 16S rRNA gene sequencing
Aikaikkuna: Within the first 6 weeks after surgery
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Urine sample will be collected at the onset of symptomatic urinary tract infection during the time period between hospital dismissal and 6-week postoperative surgical visit.
DNA extraction and 16S rRNA gene sequencing undertaken to analyze the microbial community composition of the urinary tract in the setting of urinary tract infection and compare to microbiome of the urinary tract during the perioperative period.
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Within the first 6 weeks after surgery
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Identification of key biomarkers associated with risk of postoperative urinary tract infection through proteomic mass spectrometry analysis of vaginal swab collected in the setting of postoperative urinary tract infection
Aikaikkuna: Within the first 6 weeks after surgery
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Vaginal swab collected at onset of symptomatic urinary tract infection during the time period between hospital dismissal and 6-week postoperative surgical visit.
Proteomic mass spectrometry analysis of vaginal swab will be conducted.
The investigators will use this proteomic information together with the microbial community identified with 16S rRNA to identify a transition point or key biomarkers associated with risk of postoperative urinary tract infection.
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Within the first 6 weeks after surgery
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Identification of the vaginal microbiome at least 6 weeks following surgery through DNA extraction and 16S rRNA gene sequencing
Aikaikkuna: 6 weeks (up to 8 weeks)
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Vaginal swabs will be collected from participants at the Urogynecology post-surgical consultation.
DNA extraction and 16S rRNA gene sequencing undertaken to analyze the microbial community composition of the vagina.
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6 weeks (up to 8 weeks)
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Identification of the postoperative urinary tract microbiome at least 6 weeks following surgery through DNA extraction and 16S rRNA gene sequencing
Aikaikkuna: 6 weeks (up to 8 weeks)
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Urine sample will be collected from participants at the Urogynecology post-surgical consultation.
DNA extraction and 16S rRNA gene sequencing undertaken to analyze the microbial community composition of the urinary tract.
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6 weeks (up to 8 weeks)
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Yhteistyökumppanit ja tutkijat
Täältä löydät tähän tutkimukseen osallistuvat ihmiset ja organisaatiot.
Sponsori
Tutkijat
- Päätutkija: John A Occhino, M.D., Mayo Clinic
Opintojen ennätyspäivät
Nämä päivämäärät seuraavat ClinicalTrials.gov-sivustolle lähetettyjen tutkimustietueiden ja yhteenvetojen edistymistä. National Library of Medicine (NLM) tarkistaa tutkimustiedot ja raportoidut tulokset varmistaakseen, että ne täyttävät tietyt laadunvalvontastandardit, ennen kuin ne julkaistaan julkisella verkkosivustolla.
Opi tärkeimmät päivämäärät
Opiskelun aloitus
Maanantai 1. helmikuuta 2016
Ensisijainen valmistuminen (Todellinen)
Keskiviikko 31. toukokuuta 2017
Opintojen valmistuminen (Todellinen)
Maanantai 30. heinäkuuta 2018
Opintoihin ilmoittautumispäivät
Ensimmäinen lähetetty
Maanantai 22. helmikuuta 2016
Ensimmäinen toimitettu, joka täytti QC-kriteerit
Torstai 21. huhtikuuta 2016
Ensimmäinen Lähetetty (Arvio)
Tiistai 26. huhtikuuta 2016
Tutkimustietojen päivitykset
Viimeisin päivitys julkaistu (Todellinen)
Torstai 16. elokuuta 2018
Viimeisin lähetetty päivitys, joka täytti QC-kriteerit
Tiistai 14. elokuuta 2018
Viimeksi vahvistettu
Keskiviikko 1. elokuuta 2018
Lisää tietoa
Tähän tutkimukseen liittyvät termit
Avainsanat
Muita asiaankuuluvia MeSH-ehtoja
Muut tutkimustunnusnumerot
- 15-006300
Yksittäisten osallistujien tietojen suunnitelma (IPD)
Aiotko jakaa yksittäisten osallistujien tietoja (IPD)?
EI
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Kliiniset tutkimukset Lantion elinten esiinluiskahdus
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Medical University of ViennaRekrytointiLantion elinten esiinluiskahdus | Kystocele | Emättimen esiinluiskahdus | Kystocele, keskiviiva | Prolaps virtsarakkoItävalta