An observational study in Vitreous Disorder and Vitreous Anomalies, sponsored by Ospedale Policlinico San Martino. Status unknown at 1 site in Italy. Open to participants aged 18 Years to 90 Years. Per ClinicalTrials.gov, last updated 2021-10-27.
Sponsored by Ospedale Policlinico San Martino · Observational
To measure vitreous collagen fragments length after pars plana vitrectomy performed at different cut rates
Pars plana vitrectomy consists in the removal of vitreous obtained with a vitreous cutter. The instruments attracts vitreous in its port through active suction and cuts with a blade at different cut rates. There is no consensus as to which cut rate would be ideal in order to minimize traction, neither there is agreement on whether increasing cut rates generate shorter collagen fragments or the fluid turbulence creates unpredictable flows at the port generating fragments of different length.
The investigators plan to gather vitreous cut at 1,000, 2,000, 4,000, 8,000 and 16,000 cuts per minute and measure vitreous collagen average length
Ospedale Policlinico San Martino is the lead sponsor of 30 studies on the registry; 11 are open to participants now.
Counted across the registry records on this site, refreshed daily.
patients over 18 undergoing pars plana vitrectomy for macular surgery or retinal detachment
Exclusion Criteria:
removal of vitreous with vitreous cutter
collagen fragment molecular weigth
collagen passed through the vitreous cutter is examined with regard to collagen moecular weigth
Time frame: at time of surgery
Plan to share: No
No publications or documents are linked to this record.
This study is status unknown, as verified in Sep 2021. You cannot join it, but the record below documents what was studied.
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Ospedale Policlinico San Martino