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Meta-Analysis
. 2022 May 1;148(5):448-456.
doi: 10.1001/jamaoto.2022.0271.

Advanced Computed Tomographic Localization Techniques for Primary Hyperparathyroidism: A Systematic Review and Meta-analysis

Affiliations
Meta-Analysis

Advanced Computed Tomographic Localization Techniques for Primary Hyperparathyroidism: A Systematic Review and Meta-analysis

Nrusheel Kattar et al. JAMA Otolaryngol Head Neck Surg. .

Abstract

Importance: Emerging computed tomographic (CT) imaging techniques for the localization of primary hyperparathyroidism (PHPT) may be superior to the current imaging standard, thus necessitating a critical review and pooling of available evidence.

Objective: Primary hyperparathyroidism requires accurate imaging to guide definitive surgical management. Advanced techniques including 4-dimensional computed tomographic (4D-CT) scan have been investigated over the past decade. We sought to evaluate the efficacy of these emerging imaging techniques through pooled analysis of the existing evidence.

Data sources: PubMed, Embase, and Web of Science databases were queried for original English articles without any restrictions on date.

Study selection: We included comparative observational studies but excluded animal studies, case reports, and case series. Overall, 353 abstracts were screened independently by 2 investigators along with a third reviewer to resolve conflicts. A total of 26 full-text articles were included in this review.

Data extraction and synthesis: This review was conducted in accordance with Preferred Reporting Items for Systematic Reviews and Meta-analyses (PRISMA) reporting guidelines. Data was independently extracted by 2 investigators and subsequently pooled into a meta-analysis using a random-effects model.

Main outcomes and measures: Measures of imaging diagnostic performance such as sensitivity, specificity, positive predictive value, and negative predictive value were the primary outcomes of interest.

Results: Overall, of 34 articles screened, 26 met criteria for qualitative synthesis, and 23 of these were appropriate for meta-analysis. Of the 26 studies included, there were 5845 patients, of which 4176 were women (79.2%). The average of mean ages reported in 23 studies was 60.9 years. Meta-analysis in all patients with PHPT revealed pooled sensitivity that was greater with 4D-CT (81%; 95% CI, 77%-84%; I2 = 88%) compared with the current first-line modality of sestamibi-single-photon emission CT (SPECT/CT) (65%; 95% CI, 59%-70%; I2 = 93%). For patients with recurrent PHPT requiring reoperation, 4D-CT pooled sensitivity was 81% (95% CI, 64%-98%; I2 = 93%) in contrast to 53% (95% CI, 35%-71%; I2 = 81%) for sestamibi-SPECT/CT. The overall quality of the 26 studies was moderate with a median (range) Methodological Index for Nonrandomized Studies score for all included studies of 15.5 (13-19).

Conclusions and relevance: The findings of this systematic review and with meta-analyses of numerous studies from the past decade suggest that the 4D-CT can be more sensitive and specific than sestamibi-SPECT/CT in localizing PHPT. More research is needed to determine the clinical significance of this improvement in localization.

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Conflict of interest statement

Conflict of Interest Disclosures: Dr McCoul reported personal fees from Stryker outside the submitted work. No other disclosures were reported.

Figures

Figure 1.
Figure 1.. PRISMA Flow Diagram of Systematic Review of Advanced CT Localization Techniques for Patients With Primary Hyperparathyroidism
CT Indicates computed tomography.
Figure 2.
Figure 2.. Forest Plot of Meta-analysis of Pooled Sensitivity in Systematic Review of Advanced CT Localization Techniques for Patients With Primary Hyperparathyroidism
Diamond, overall effect estimates; square, point estimate of the study; black line, 95% CI.
Figure 3.
Figure 3.. Forest Plot of Meta-analysis of Pooled Specificity in Systematic Review of Advanced CT Localization Techniques for Patients With Primary Hyperparathyroidism
Diamond, overall effect estimates; square, point estimate of the study; black line, 95% CI.
Figure 4.
Figure 4.. Forest Plot of Meta-analysis of Pooled Sensitivity for Reoperative Patients in Systematic Review of Advanced CT Localization Techniques for Patients With Primary Hyperparathyroidism
Diamond, overall effect estimates; square, point estimate of the study; black line, 95% CI.

Comment in

References

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