Long-term endothelial cell loss following phacoemulsification through a temporal clear corneal incision
Identifieur interne : 009854 ( Main/Merge ); précédent : 009853; suivant : 009855Long-term endothelial cell loss following phacoemulsification through a temporal clear corneal incision
Auteurs : H. B. Dick [Allemagne] ; T. Kohnen ; F. K. Jacobi ; K. W. JacobiSource :
- Journal of cataract and refractive surgery [ 0886-3350 ] ; 1996.
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Abstract
Purpose : To evaluate central endothelial cell loss (ECL) following clear corneal cataract surgery using two different incision sizes and the effect of ultrasound time (UST) and power on postoperative ECL and various cell parameters. Methods : Fifty-eight patients had phacoemulsification through temporal, two-step clear corneal tunnel incisions. In Group A (n = 28), a one-piece, plate-haptic, foldable silicone intraocular lens (IOL) was implanted through a 3.5 mm sutureless incision. In Group B (n = 30), a poly(methyl methacrylate) IOL was implanted through a 5.0 mm incision with one radial suture. The central endothelial cell counts were recorded preoperatively and postoperatively at 2 to 5 days, after 6 months, and after 1 year. Color-coded, computer-assisted specular microscopy was used for special cell analysis after 1 year. Results : Collective data showed an ECL of 7.9 ± 4.1% (mean ± standard deviation) at 2 to 5 days postoperatively, 6.7 ± 2.9% after 6 months, and 7.3 ± 3.3% after 1 year. A direct linear relationship was found between ECL and UST and power : ECL increased as UST and power increased. After 1 year, ECL in Group A was 4.2% with UST ≤1 1/2 minutes, 6.7% with UST >1 1/2 to 2 1/2 min, and 9.6% with UST >2 1/2 to 3 1/2 min ; in Group B, it was 6.0%, 7.5%, and 11.4%, respectively. Specular microscopy showed normal, age-related cell parameters 1 year postoperatively. Conclusions : Phacoemulsification with 3.5 mm clear corneal incisions produced slightly less ECL (6.7%) than phacoemulsification with 5.0 mm incisions (7.9%). Total ECL of 7.3% at 1 year postoperatively compared favorably with ECL rates of other cataract extraction methods.
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<record><TEI><teiHeader><fileDesc><titleStmt><title xml:lang="en" level="a">Long-term endothelial cell loss following phacoemulsification through a temporal clear corneal incision</title><author><name sortKey="Dick, H B" sort="Dick, H B" uniqKey="Dick H" first="H. B." last="Dick">H. B. Dick</name><affiliation wicri:level="1"><inist:fA14 i1="01"><s1>Justus-Liebig-univ. Giessen, dep. ophthalmology</s1><s2>35385 Giessen</s2><s3>DEU</s3></inist:fA14><country>Allemagne</country><wicri:noRegion>35385 Giessen</wicri:noRegion><wicri:noRegion>dep. ophthalmology</wicri:noRegion><wicri:noRegion>35385 Giessen</wicri:noRegion></affiliation></author><author><name sortKey="Kohnen, T" sort="Kohnen, T" uniqKey="Kohnen T" first="T." last="Kohnen">T. Kohnen</name></author><author><name sortKey="Jacobi, F K" sort="Jacobi, F K" uniqKey="Jacobi F" first="F. K." last="Jacobi">F. K. Jacobi</name></author><author><name sortKey="Jacobi, K W" sort="Jacobi, K W" uniqKey="Jacobi K" first="K. W." last="Jacobi">K. W. Jacobi</name></author></titleStmt><publicationStmt><idno type="wicri:source">INIST</idno><idno type="inist">96-0133595</idno><date when="1996">1996</date><idno type="stanalyst">PASCAL 96-0133595 INIST</idno><idno type="RBID">Pascal:96-0133595</idno><idno type="wicri:Area/PascalFrancis/Corpus">001714</idno><idno type="wicri:Area/PascalFrancis/Curation">001407</idno><idno type="wicri:Area/PascalFrancis/Checkpoint">001458</idno><idno type="wicri:doubleKey">0886-3350:1996:Dick H:long:term:endothelial</idno><idno type="wicri:Area/Main/Merge">009854</idno></publicationStmt><sourceDesc><biblStruct><analytic><title xml:lang="en" level="a">Long-term endothelial cell loss following phacoemulsification through a temporal clear corneal incision</title><author><name sortKey="Dick, H B" sort="Dick, H B" uniqKey="Dick H" first="H. B." last="Dick">H. B. Dick</name><affiliation wicri:level="1"><inist:fA14 i1="01"><s1>Justus-Liebig-univ. Giessen, dep. ophthalmology</s1><s2>35385 Giessen</s2><s3>DEU</s3></inist:fA14><country>Allemagne</country><wicri:noRegion>35385 Giessen</wicri:noRegion><wicri:noRegion>dep. ophthalmology</wicri:noRegion><wicri:noRegion>35385 Giessen</wicri:noRegion></affiliation></author><author><name sortKey="Kohnen, T" sort="Kohnen, T" uniqKey="Kohnen T" first="T." last="Kohnen">T. Kohnen</name></author><author><name sortKey="Jacobi, F K" sort="Jacobi, F K" uniqKey="Jacobi F" first="F. K." last="Jacobi">F. K. Jacobi</name></author><author><name sortKey="Jacobi, K W" sort="Jacobi, K W" uniqKey="Jacobi K" first="K. W." last="Jacobi">K. W. Jacobi</name></author></analytic><series><title level="j" type="main">Journal of cataract and refractive surgery</title><title level="j" type="abbreviated">J. cataract refractive surg.</title><idno type="ISSN">0886-3350</idno><imprint><date when="1996">1996</date></imprint></series></biblStruct></sourceDesc><seriesStmt><title level="j" type="main">Journal of cataract and refractive surgery</title><title level="j" type="abbreviated">J. cataract refractive surg.</title><idno type="ISSN">0886-3350</idno></seriesStmt></fileDesc><profileDesc><textClass><keywords scheme="KwdEn" xml:lang="en"><term>Cataract</term><term>Comparative study</term><term>Cornea</term><term>Endothelial cell</term><term>Human</term><term>Long term</term><term>Loss</term><term>Phacoemulsification</term><term>Size</term><term>Surgical incision</term></keywords><keywords scheme="Pascal" xml:lang="fr"><term>Cataracte</term><term>Phacoémulsification</term><term>Incision chirurgicale</term><term>Cornée</term><term>Perte</term><term>Cellule endothéliale</term><term>Long terme</term><term>Taille</term><term>Etude comparative</term><term>Homme</term><term>Segment antérieur pathologie</term></keywords><keywords scheme="Wicri" type="topic" xml:lang="fr"><term>Homme</term></keywords></textClass></profileDesc></teiHeader><front><div type="abstract" xml:lang="en">Purpose : To evaluate central endothelial cell loss (ECL) following clear corneal cataract surgery using two different incision sizes and the effect of ultrasound time (UST) and power on postoperative ECL and various cell parameters. Methods : Fifty-eight patients had phacoemulsification through temporal, two-step clear corneal tunnel incisions. In Group A (n = 28), a one-piece, plate-haptic, foldable silicone intraocular lens (IOL) was implanted through a 3.5 mm sutureless incision. In Group B (n = 30), a poly(methyl methacrylate) IOL was implanted through a 5.0 mm incision with one radial suture. The central endothelial cell counts were recorded preoperatively and postoperatively at 2 to 5 days, after 6 months, and after 1 year. Color-coded, computer-assisted specular microscopy was used for special cell analysis after 1 year. Results : Collective data showed an ECL of 7.9 ± 4.1% (mean ± standard deviation) at 2 to 5 days postoperatively, 6.7 ± 2.9% after 6 months, and 7.3 ± 3.3% after 1 year. A direct linear relationship was found between ECL and UST and power : ECL increased as UST and power increased. After 1 year, ECL in Group A was 4.2% with UST ≤1 1/2 minutes, 6.7% with UST >1 1/2 to 2 1/2 min, and 9.6% with UST >2 1/2 to 3 1/2 min ; in Group B, it was 6.0%, 7.5%, and 11.4%, respectively. Specular microscopy showed normal, age-related cell parameters 1 year postoperatively. Conclusions : Phacoemulsification with 3.5 mm clear corneal incisions produced slightly less ECL (6.7%) than phacoemulsification with 5.0 mm incisions (7.9%). Total ECL of 7.3% at 1 year postoperatively compared favorably with ECL rates of other cataract extraction methods.</div></front></TEI><affiliations><list><country><li>Allemagne</li></country></list><tree><noCountry><name sortKey="Jacobi, F K" sort="Jacobi, F K" uniqKey="Jacobi F" first="F. K." last="Jacobi">F. K. Jacobi</name><name sortKey="Jacobi, K W" sort="Jacobi, K W" uniqKey="Jacobi K" first="K. W." last="Jacobi">K. W. Jacobi</name><name sortKey="Kohnen, T" sort="Kohnen, T" uniqKey="Kohnen T" first="T." last="Kohnen">T. Kohnen</name></noCountry><country name="Allemagne"><noRegion><name sortKey="Dick, H B" sort="Dick, H B" uniqKey="Dick H" first="H. B." last="Dick">H. B. Dick</name></noRegion></country></tree></affiliations></record>Pour manipuler ce document sous Unix (Dilib)
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