ArticleQuantitative imaging in medicine and surgery2025
Anatomic features of congenital nasolacrimal duct obstruction: a comparative computed tomography study.
Article in Quantitative imaging in medicine and surgery, 2025. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Not yet cited in PubMed.
What it found
Each row is one number read from the abstract, on the scale the paper reported it, with its interval. Left of the dashed line favours the treatment, right favours the comparator. Under each row is the sentence it came from. New to these charts? A ten-minute tutorial.
The abstract states no effect estimate the extractor could read, or names no intervention and outcome on the map, so this paper lights no cell and moves no belief. It is still indexed, cited and linked below.
The trial behind it
Trials whose registry record cites this paper, or whose number appears in the abstract. A trial that started after this paper was published is citing it as background, not reporting it.
Neither the registry nor the abstract names a trial number. If this is a trial report, that itself is worth knowing.
Who cites it
0 citing papers in PubMed.
No citing paper in PubMed yet.
Corrections and comments
PubMed lists nothing against this paper. Absence here is not a guarantee, only a check that was made.
Authors and funding
4 authors.
Funding
No grant is acknowledged in the PubMed record.
Abstract
Background: Investigating the anatomic features of congenital nasolacrimal duct obstruction (CNLDO) is crucial for understanding its etiology and guiding surgical management. This study aimed to compare the computed tomography (CT)-based features of the lacrimal sac fossa (LF) and nasolacrimal duct (NLD) in CNLDO patients against matched controls. Methods: This retrospective comparative observational study included 39 CNLDO patients who underwent cranial CT for preoperative evaluation, subdivided into 18 cases with chronic dacryocystitis and 21 cases without. For each patient, an age- and gender-matched control undergoing cochlear implantation CT assessment and screened to exclude craniofacial anomalies was enrolled. Measurements were conducted on CT images, including LF height and width, NLD height and width, frontal process thickness, and the presence of sinusitis. Comparisons were made among the obstructed, non-obstructed, and matched control sides. Results: Mean ages in the non-dacryocystitis and dacryocystitis groups were 2.58 and 3.08 years, respectively. In the non-dacryocystitis group, the narrowest NLD width on the obstructed side was significantly larger than that on the control side (3.38±0.70 Conclusions: All obstructed sides of CNLDO exhibit an increase in NLD width. Besides, in CNLDO with chronic dacryocystitis, LF enlargement can also be observed in obstructed sides, with the anatomic changes more pronounced. We hypothesize that, in addition to elevated hydrostatic pressure, infectious factors are a significant cause of these structural expansions.
Indexed as
Identifiers
What OpenQuestion holds
Registered trials
Read under generation 80e0d062 · epoch 390. Bibliography from PubMed, PubMed Central and OpenAlex; grants from NIH RePORTER; trial links from ClinicalTrials.gov; estimates, votes and beliefs from the OpenQuestion graph.