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. 2024 Jul 27;13(9):2445–2465. doi: 10.1007/s40123-024-01002-0

Table 2.

Systematic literature review results: procedural efficiency outcomes

First author,
year
Study design Interventions Number of patients/
eyes/injections/
clinicians
Outcome(s) Key results

Michaud

2014 [16]

Cross-sectional

RBZ PFS

RBZ vial

Not specified

Silicon oil migration

Product stability

Minimal silicone oil migration into solution in RBZ PFS

No relevant difference in product stability between RBZ PFS and vial

RBZ PFS is easy to hold and may increase the injection preparation efficiency by saving clinicians' time vs. vial

Woodcock

2014 [17]

Cross-sectional

RBZ PFS

RBZ vial

Not specified Product stability No difference in product stability between RBZ PFS and vial

Souied

2015 [18]

Cross-sectional

RBZ PFS

RBZ vial

Syringe preparations

Center 1

RBZ PFS 39

RBZ vial 24

Center 2

RBZ PFS 18

RBZ vial 16

Syringe preparation time

(mean ± SD)

Center 1

RBZ PFS 46.0 ± 7.3 s

RBZ vial 75.3 ± 14.7 s (p < 0.001)

Center 2

RBZ PFS 45.8 ± 9.8 s

RBZ vial 62.8 ± 15.6 s (p < 0.01)

Subhi

2016 [19]

Cross-sectional

RBZ PFS

RBZ vial

AFL vial

Syringe preparations

RBZ PFS 56

RBZ vial 56

AFL vial 60

Syringe preparation time

(mean ± SD)

RBZ PFS 16.9 ± 3.6 s

RBZ vial 40.3 ± 6.7 s (p < 0.0001)

AFL vial 45.1 ± 6.9 s (p = 0.0014)

Ayan

2017 [20]

Cross-sectional

RBZ PFS

RBZ vial

Syringe preparations

RBZ PFS 24

RBZ vial 24

Syringe preparation time

(mean ± SD)

Syringe preparation time

RBZ PFS 40.3 ± 7.62 s

RBZ vial 98.0 ± 25.23 s

Difference − 57.8 s; 95% CI − 67.67 to − 47.91 (p < 0.0001)

Antoszyk

2018 [41]

Simulated and actual use human factor RBZ PFS

Simulated use

Retina specialists 15

Ophthalmic medical personnel 15

Actual use

Retina specialists 3

Assistants 3

Patients 35

12 tasks specific to the unpacking, preparing, and proper administration All participants successfully performed all essential and safety–critical tasks without use error in both the simulated use and actual use human factors usability studies

Loewenstein

2019 [23]

Cross-sectional

RBZ PFS

AFL vial

Injections

RBZ PFS 125

AFL vial 112

Injection volume Volume: RBZ PFS more precise vs. AFL vial

Ugurlu

2021 [29]

Cross-sectional

RBZ PFS

RBZ vial

AFL vial

Injections

RBZ PFS 45

RBZ vial 36

AFL vial 36

Syringe preparation time

(mean ± SD)

RBZ PFS 46.5 ± 4.8 s

RBZ vial 64.2 ± 5.1 s

AFL vial 74.7 ± 8.5 s

Time significantly lower for RBZ PFS

Ulaş

2021 [30]

Cross-sectional

RBZ PFS

RBZ vial

AFL vial

Injections 90

Patients injected

RBZ PFS 15

RBZ vial 15

AFL vial 15

Syringe preparation + injection time

(mean ± SD)

Clinician 1

RBZ PFS 50.29 ± 11.31 s

RBZ vial 82.31 ± 21.52 s (p < 0.001)

AFL vial 71.90 ± 16.57 s (p < 0.001)

Clinician 2

RBZ PFS 57.86 ± 8.80 s

RBZ vial 91.80 ± 17.69 s (p < 0.001)

AFL vial 79.50 ± 14.22 s (p < 0.001)

Lee

2022 [48]

Survey

AFL PFS

AFL vial

Ophthalmologists 78

Experiences using

AFL PFS

49/72 (68%) of respondents felt that more force was required to use AFL PFS plunger vs. traditional 1-ml syringes

Common comments

 Lack of tactile feedback when pushing AFL PFS plunger

 Priming syringe difficult because of ambiguity in determining where to align the plunger tip

Raevis

2022 [49]

Letter to editor AFL PFS Not applicable Author’s opinion Reports of overdosing with PFS may be due to the syringe stopper deforming into the syringe dead space, allowing for more medication to be delivered

AFL aflibercept, CI confidence interval, PFS prefilled syringe, RBZ ranibizumab