Skip to main content
Top
Published in: International Ophthalmology 3/2019

Open Access 01-03-2019 | Original Paper

Clinical risk factors associated with intraoperative floppy iris syndrome: a prospective study

Authors: Ilona A. Kaczmarek, Marek E. Prost, Jaromir Wasyluk

Published in: International Ophthalmology | Issue 3/2019

Login to get access

Abstract

Purpose

To evaluate the incidence of and factors associated with intraoperative floppy iris syndrome (IFIS) in patients undergoing cataract phacoemulsification.

Methods

In total, 319 eyes of 319 patients who underwent phacoemulsification with implantation of an intraocular lens (IOL) into the posterior chamber were included in this study. Direct injection of epinephrine into the anterior chamber was performed in all cases. The following patient information was collected: gender, age, axial length of the eye, presence of pseudoexfoliation syndrome, glaucoma, diabetes mellitus, hypertension, current use of medications including alpha1 adrenergic receptor antagonists (alpha1-ARAs), finasteride, and benzodiazepines, duration of intake of alpha1-ARAs and finasteride, and duration of the surgery. Patients were classified as IFIS or non-IFIS after the surgery. Univariate and multivariate logistic regression analyses were performed.

Results

The overall incidence of IFIS was 9.09% (29/319 eyes). The multivariate analysis revealed that tamsulosin use (P = 0.004), finasteride use (P = 0.014), and increasing age (P = 0.006) were significantly associated with IFIS. Male gender and benzodiazepine use were significantly associated with IFIS in the univariate analysis, but not in the multivariate analysis. The non-selective alpha1-ARA doxazosin was not found to be associated with IFIS.

Conclusions

The findings suggest that finasteride use and aging are risk factors for IFIS and confirm the association of tamsulosin use with IFIS. Further, doxazosin appears to be a relatively safe drug with respect to the occurrence of IFIS.
Literature
7.
go back to reference Gravas S, Bach T, Bachmann A et al (2016) EAU guidelines on management of non neurogenic male LUTS. Eur Assoc Urol Guidel 21–23 Gravas S, Bach T, Bachmann A et al (2016) EAU guidelines on management of non neurogenic male LUTS. Eur Assoc Urol Guidel 21–23
15.
go back to reference Hieble JP, Bylund DB, Clarke DE et al (1990) International Union of Pharmocology X. Recommendation for nomenclature of a1-adrenoceptors: consensus update. Pharmacol Rev 47(2):297–314 Hieble JP, Bylund DB, Clarke DE et al (1990) International Union of Pharmocology X. Recommendation for nomenclature of a1-adrenoceptors: consensus update. Pharmacol Rev 47(2):297–314
17.
go back to reference Yu Y, Koss MC (2003) Functional characterization of alpha-adrenoceptors mediating pupillary dilation in rats. Eur J Pharmacol 471(2):135–140CrossRefPubMed Yu Y, Koss MC (2003) Functional characterization of alpha-adrenoceptors mediating pupillary dilation in rats. Eur J Pharmacol 471(2):135–140CrossRefPubMed
22.
go back to reference Intraoperative Floppy Iris Syndrome (IFIS) Associated with Systemic Alpha-1 Antagonists (2014) ASCRS and AAO Educational Update Statement, ASCRS and AAO Quality of Care Secretariat, Hoskins Center for Quality Eye Care Intraoperative Floppy Iris Syndrome (IFIS) Associated with Systemic Alpha-1 Antagonists (2014) ASCRS and AAO Educational Update Statement, ASCRS and AAO Quality of Care Secretariat, Hoskins Center for Quality Eye Care
26.
go back to reference Horvath K, Vultur F, Simon V, Voidazan S, Gh M (2015) Research on intraoperative iris behavior in rabbits treated with tamsulosin and finasteride. Hippokratia 19(1):20–24PubMedPubMedCentral Horvath K, Vultur F, Simon V, Voidazan S, Gh M (2015) Research on intraoperative iris behavior in rabbits treated with tamsulosin and finasteride. Hippokratia 19(1):20–24PubMedPubMedCentral
27.
go back to reference Takayanagi I (1994) Effects of aging on drug receptor mechanisms in smooth muscles. Nihon Yakurigaku Zasshi. Folia Pharmacol Jpn 104(3):163–175CrossRef Takayanagi I (1994) Effects of aging on drug receptor mechanisms in smooth muscles. Nihon Yakurigaku Zasshi. Folia Pharmacol Jpn 104(3):163–175CrossRef
28.
go back to reference Panagis L, Basile M, Friedman AH, Danias J (2010) Intraoperative floppy iris syndrome: report of a case and histopathologic analysis. Arch Ophthalmol 128(11):1437–1441CrossRefPubMed Panagis L, Basile M, Friedman AH, Danias J (2010) Intraoperative floppy iris syndrome: report of a case and histopathologic analysis. Arch Ophthalmol 128(11):1437–1441CrossRefPubMed
29.
go back to reference Satoh K, Takaku Y, Ohtsuki K, Mizuno K (1999) Effects of aging on fluorescein leakage in the iris and angle in normal subjects. Jpn J Ophthalmol 43(3):166–170CrossRefPubMed Satoh K, Takaku Y, Ohtsuki K, Mizuno K (1999) Effects of aging on fluorescein leakage in the iris and angle in normal subjects. Jpn J Ophthalmol 43(3):166–170CrossRefPubMed
31.
go back to reference Peduzzi P, Concato J, Kemper E, Holford TR, Feinstein AR (1996) A simulation study of the number of events per variable in logistic regression analysis. J Clin Epidemiol 49(12):1373–1379CrossRefPubMed Peduzzi P, Concato J, Kemper E, Holford TR, Feinstein AR (1996) A simulation study of the number of events per variable in logistic regression analysis. J Clin Epidemiol 49(12):1373–1379CrossRefPubMed
Metadata
Title
Clinical risk factors associated with intraoperative floppy iris syndrome: a prospective study
Authors
Ilona A. Kaczmarek
Marek E. Prost
Jaromir Wasyluk
Publication date
01-03-2019
Publisher
Springer Netherlands
Published in
International Ophthalmology / Issue 3/2019
Print ISSN: 0165-5701
Electronic ISSN: 1573-2630
DOI
https://doi.org/10.1007/s10792-018-0840-3

Other articles of this Issue 3/2019

International Ophthalmology 3/2019 Go to the issue