Comparison of a manometric tear duct irrigation test with dacryoscintigraphy in the investigation of epiphora

Sipkova, Zuzana; Ebube, E.; Olurin, O; Mota, Peter M; Vonica, Oana; Pearson, Andrew

doi:10.1080/01676830.2019.1704033

Cited by 5 publications

(5 citation statements)

References 8 publications

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“…There is little asymptomatic eye syringing data available for comparison, however Spikova et al reported that 10% of fellow asymptomatic eyes displayed an abnormal result using their modified manometric irrigation test. 4 The limitations of this study include its retrospective nature, the lack of anatomical correlation with dacryoendoscopy, possible referral bias as the study was conducted at a tertiary Oculoplastic clinic, and the qualitative categorisation of the DCG and DSG results. One of the main limitations of this study includes the absence of a control group without functional abnormalities in both eyes, for comparison.…”

Section: Discussionmentioning

confidence: 99%

Section: Discussionmentioning

confidence: 99%

“…In fellow asymptomatic eyes of symptomatic eyes with post sac delay on DSG, 43% displayed corresponding post sac delay on DSG. The reported prevalence of DSG abnormalities in asymptomatic fellow eyes ranges 25%–80%, 2,4–10 with most data based on small cohorts. In the largest study Amanat et al observed that in 240 asymptomatic fellow eyes of patients with epiphora which underwent DSG, normal flow was demonstrated in only 25% of eyes, and 42% showed a complete tracer block or delay.…”

Section: Discussionmentioning

confidence: 99%

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Lacrimal imaging findings in fellow asymptomatic eyes of unilateral epiphora

Macri

Shapira

Selva

2022

European Journal of Ophthalmology

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Aims To investigate the prevalence of subclinical anatomical and functional abnormalities of lacrimal drainage in fellow asymptomatic eyes of unilateral epiphora using dacryocystography and dacryoscintigraphy. Methods Retrospective case note review of lacrimal imaging of adult patients presenting to a hospital Oculoplastic clinic with unilateral epiphora over 10 years. Results A total of 172 patients with unilateral epiphora were included. The median age was 67 (range 18–96 years). A dacryoscintigraphy (DSG) abnormality was present in 54 (42%) asymptomatic eyes, and dacryocystography (DCG) abnormality in 10 (10%). The most common finding on DSG was no delay in 76 eyes (58%), and most common DSG abnormality was post sac delay in 51 (39%) eyes. The most common finding on DCG was no obstruction in 88 (90%) eyes, and the most common DCG abnormality was post sac stenosis (7.1%). Of the 92 asymptomatic eyes with both DCG and DSG, 53 (57%) showed neither an obstruction on DCG or delay on DSG, and 28 (30%) showed a post sac delay on DSG and no abnormality on DCG. Conclusion Greater than a third of asymptomatic eyes displayed post sac delay on DSG, frequently without accompanying anatomical obstruction on DCG. Subclinical DSG delay in asymptomatic eyes may represent physiological variation in tear transit time, subclinical lacrimal drainage dysfunction or anatomical stenosis undetected by DCG. Furthermore, the DSG results of fellow asymptomatic eyes in unilateral epiphora may not represent a normal standard that can be utilised for comparison. Further investigation with dacroyendoscopy, the use of control eyes, and long term follow up is required.

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Section: Discussionmentioning

confidence: 99%

Section: Discussionmentioning

confidence: 99%

Section: Discussionmentioning

confidence: 99%

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Lacrimal imaging findings in fellow asymptomatic eyes of unilateral epiphora

Macri

Shapira

Selva

2022

European Journal of Ophthalmology

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“…For example, the lacrimal syringe method, under complete aseptic precautions, is used to determine the obstruction of the nasolacrimal duct. 2 A preliminary judgment is made based on clinical manifestations such as overflowing tears and purulent discharge. 3 Contrast medium is injected from the lacrimal puncta into the lacrimal sac for computed tomography radiography examination.…”

mentioning

confidence: 99%

“…Routine clinical examinations mainly include dacryocystogra-phy, ultrasonography, computed tomography and magnetic resonance imaging. For example, the lacrimal syringe method, under complete aseptic precautions, is used to determine the obstruction of the nasolacrimal duct 2 . A preliminary judgment is made based on clinical manifestations such as overflowing tears and purulent discharge 3 .…”

mentioning

confidence: 99%

Explainable Prediction of Dacryocystitis From Noninvasive Ocular Indicators Using Deep Stacked Network and The Shapley Additive Explanations Approach

Han

Liao

Song

et al. 2021

Journal of Craniofacial Surgery

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Dacryocystitis diagnosis is important for preventing rapid blurring and vision loss. Existing state-of-the-art methods focus on routine clinical examinations and objective scattering index-based statistical analysis. Such approaches are invasive operations or lack quantitative indicators, and their application is limited. in addition, little attention has been paid to the explainability and clinical utility of models. This paper proposes an explainable dacryocystitis prediction model from noninvasive ocular indicators. The proposed model is based on an deep stacked network with 4 improvements: a multivariable feature extraction module, obtaining comprehensive predictive factors including the quantitative ocular indictors, conventional texture features, and deep learning features from shallow to deep convolutional layers; a multifeature fusion and attribute selection module based on the ReliefF method, guiding the network to focus on useful information at variables; Decision curve analysis the model is introduced into the model to evaluates the risks and benefits; and appending a SHapley Additive exPlanations (SHAP) module to the framework to automatically and efficiently interpret the prediction of the models. By integrating the above improvements in series, the models' performances are gradually enhanced. Real labeled data samples are used to train and test the model, and our model achieves high accuracy and reliability.

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Incompatibility of Lacrimal Syringing Test with Dacryoscintigraphy in Patients Undergoing Successful Dacryocystorhinostomy Surgery

Yazicioglu,

Sarı,

Kesim

2024

World J Nucl Med

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Purpose The aim of our study was to evaluate the compatibility of lacrimal syringe test with dacryoscintigraphy (DSG) in the postoperative evaluation of external dacryocystorhinostomy (Ext-DCR) surgery. Material and Methods Thirty eyes of 30 patients suffering from unilateral epiphora with discharge and showing complete obstruction on lacrimal irrigation test were included in the study. Patients with dysfunctional lacrimal pump function, revision surgery, partial obstruction, and ocular surface diseases were not included in the study.Verification of the nasolacrimal duct obstruction (NLDO) was achieved with dye disappearance test, Jones test 1 (JT 1), and JT 2. According to the type of obstruction seen on DSG, patients were classified into two groups: presac and postsac obstruction. Patients with complete obstruction detected in the lacrimal syringing and dynamic scintigraphy underwent Ext-DCR, and the results were evaluated. Results Thirty patients, mean age 58.93 ± 12.11 years, all with unilateral NLDO were included in the study. All had grade 5 Munk score epiphora and discharge. The mean duration of obstruction was 24.57 ± 10.65 months. In the lacrimal irrigation test, all patients had complete obstruction in one eye, while the other eye was normal. According to preoperative DSG results, there were 20 (66.7%) patients with presac delay and 10 (33.3%) patients with postsac delay. All patients underwent Ext-DCR with silicone tube intubation and were followed for 1 year. Although there was symptomatic improvement in all patients and the lacrimal syringing test was patent, no change was seen in scintigraphy. Conclusion Although DSG is a sensitive nuclear medicine method, it is not useful for predicting the functional success of the Ext-DSR.

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Comparison of a manometric tear duct irrigation test with dacryoscintigraphy in the investigation of epiphora

Cited by 5 publications

References 8 publications

Lacrimal imaging findings in fellow asymptomatic eyes of unilateral epiphora

Lacrimal imaging findings in fellow asymptomatic eyes of unilateral epiphora

Explainable Prediction of Dacryocystitis From Noninvasive Ocular Indicators Using Deep Stacked Network and The Shapley Additive Explanations Approach

Incompatibility of Lacrimal Syringing Test with Dacryoscintigraphy in Patients Undergoing Successful Dacryocystorhinostomy Surgery

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