DSAEK- Postoperative Positioning and Transplant Dislocation

NCT ID: NCT01206127

Last Updated: 2010-09-21

Study Results

Results pending

The study team has not published outcome measurements, participant flow, or safety data for this trial yet. Check back later for updates.

Basic Information

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Recruitment Status

UNKNOWN

Clinical Phase

NA

Total Enrollment

40 participants

Study Classification

INTERVENTIONAL

Study Start Date

2010-09-30

Study Completion Date

2018-01-31

Brief Summary

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Corneal transplant is a surgical procedure where a damaged or diseased cornea is replaced by donated corneal tissue (the graft) in its entirety (penetrating keratoplasty) or in part (lamellar keratoplasty). One type of lamellar keratoplasty is DSAEK (Descemet's Stripping Automated Endothelial Keratoplasty), where only the damaged posterior section of the cornea is replaced.

The purpose of this study is to investigate how immediate postoperative positioning of the patient affects the dislocation rate of the corneal graft. Since this is a new surgical method, little scientific documentation has been published in this area.

Detailed Description

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Corneal transplant is a surgical procedure where a damaged or diseased cornea is replaced by donated corneal tissue (the graft) in its entirety (penetrating keratoplasty) or in part (lamellar keratoplasty). One type of lamellar keratoplasty is DSAEK (Descemet's Stripping Automated Endothelial Keratoplasty), where only the damaged posterior section of the cornea is replaced.

To get the graft in the right position inside the eyes anterior chamber, the anterior chamber is fully filled with air, and the patient is placed in a supine position looking facing up for different amount of time depending on the surgeon. In this way the air bubble will press the graft in the right position and prevent dislocation. Our experience is that since the anterior chamber of the eye already is fully filled with air, it does not matter how the patient is positioned postoperatively regarding graft dislocation.

Our hypothesis is that the immediate postoperative positioning is insignificant. If this can be significantly proved this may enhance the patients comfort postoperatively.

Conditions

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Corneal Transplantation Descemet Stripping Automated Endothelial Keratoplasty Fuchs' Endothelial Dystrophy Corneal Dystrophies, Hereditary

Study Design

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Allocation Method

RANDOMIZED

Intervention Model

PARALLEL

Primary Study Purpose

TREATMENT

Blinding Strategy

NONE

Study Groups

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Postoperative positioning: Bed rest

Patients in this group must be lying down facing up 2 hours postoperatively

Group Type OTHER

Postoperative positioning: Bed rest

Intervention Type OTHER

Patients in this group should be lying down facing up 2 hours postoperatively

Postoperative positioning: Sitting up

Patients in this group should be sitting up in a chair 2 hours postoperatively

Group Type OTHER

Postoperative positioning: Sitting up

Intervention Type OTHER

Patients in this group should be sitting up in a chair 2 hours postoperative

Interventions

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Postoperative positioning: Bed rest

Patients in this group should be lying down facing up 2 hours postoperatively

Intervention Type OTHER

Postoperative positioning: Sitting up

Patients in this group should be sitting up in a chair 2 hours postoperative

Intervention Type OTHER

Eligibility Criteria

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Inclusion Criteria

* Corneal dystrophy requiring corneal transplantation
* Patients written permission
* Pseudophakia

Exclusion Criteria

* Uncontrolled glaucoma
* Phakia or aphakia
* Shallow anterior chamber
* Fibrotic cornea
* Demented patients
* Claustrophobic patients
* Patients that do not want to participate
Minimum Eligible Age

18 Years

Eligible Sex

ALL

Accepts Healthy Volunteers

No

Sponsors

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Oslo University Hospital

OTHER

Sponsor Role lead

Responsible Party

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Department of Ophthalmology, Oslo University Hospital Ullevål, Norway

Principal Investigators

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Liv Drolsum, Prof.,MD,PhD

Role: STUDY_DIRECTOR

Department of Ophthalmology, Oslo University Hospital, Norway

Locations

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Departement of Ophthalmology, Oslo University Hospital, Norway

Oslo, Oslo County, Norway

Site Status RECRUITING

Countries

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Norway

Central Contacts

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Liv Drolsum, Prof,MD,PhD

Role: CONTACT

+47 22 11 85 45

Marit Sæthre, MD, PhD

Role: CONTACT

+47 22 11 85 45

Facility Contacts

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Liv Drolsum, Prof.,MD,PhD

Role: primary

+47 22 11 85 45

Marit Sæthre, MD, PhD

Role: backup

+47 22 11 85 45

References

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Price MO, Gorovoy M, Benetz BA, Price FW Jr, Menegay HJ, Debanne SM, Lass JH. Descemet's stripping automated endothelial keratoplasty outcomes compared with penetrating keratoplasty from the Cornea Donor Study. Ophthalmology. 2010 Mar;117(3):438-44. doi: 10.1016/j.ophtha.2009.07.036. Epub 2010 Jan 19.

Reference Type BACKGROUND
PMID: 20031230 (View on PubMed)

Price MO, Giebel AW, Fairchild KM, Price FW Jr. Descemet's membrane endothelial keratoplasty: prospective multicenter study of visual and refractive outcomes and endothelial survival. Ophthalmology. 2009 Dec;116(12):2361-8. doi: 10.1016/j.ophtha.2009.07.010. Epub 2009 Oct 28.

Reference Type BACKGROUND
PMID: 19875170 (View on PubMed)

Dapena I, Ham L, Melles GR. Endothelial keratoplasty: DSEK/DSAEK or DMEK--the thinner the better? Curr Opin Ophthalmol. 2009 Jul;20(4):299-307. doi: 10.1097/ICU.0b013e32832b8d18.

Reference Type BACKGROUND
PMID: 19417653 (View on PubMed)

Other Identifiers

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239-08/344c(REK)-1

Identifier Type: -

Identifier Source: org_study_id