Clinical trial NCT06830070: Subjective Pain Scoring for Subtenonal Anesthesia During Vitrectomy
Official title: Subjective Pain Scoring for Subtenonal Anesthesia During Vitrectomy
Study type: OBSERVATIONAL
Overall status: ACTIVE_NOT_RECRUITING
Conditions: Epiretinal Membranes
Retinal Detachment
Full Thickness Macular Hole
Keywords: subjective pain score
VAS
subtenonal anesthesia
Lead sponsor: Vienna Institute for Research in Ocular Surgery
Sponsor class: OTHER
First posted: 2025-02-17
Enrollment: 70
Sex: ALL
Minimum age (years): 18
Standard ages: ADULT
OLDER_ADULT
Accepts healthy volunteers: no
Observational model: COHORT
Time perspective: RETROSPECTIVE
Sampling method: NON_PROBABILITY_SAMPLE
Study population: patients having undergone vitrectomy in subtenon´s anesthesia

Brief summary: Subtenonal anesthesia is a well-known technique of local anesthesia for patients undergoing pars plana vitrectomies. It was described to be efficient with respect to anesthesia of the eye and it showed less risks compared to retrobulbar or parabulbar anesthesia. Purpose of the study is to assess subjective pain scores of patients, that underwent vitrectomy with subtenonal anesthesia.

Detailed description: Subtenonal anesthesia is a well-known technique of local anesthesia for patients undergoing pars plana vitrectomies. It was described to be efficient with respect to anesthesia of the eye and it showed less risks compared to retrobulbar or parabulbar anesthesia. Subjective pain scores of patients, that underwent vitrectomy with subtenonal anesthesia, are probably different among patients with excessive indentation of the bulbus for retinal detachment repair, compared to patients undergoing vitrectomy with membrane peeling for epiretinal membranes or full thickness macular holes. Purpose of the study is to assess subjective pain scores of patients, that underwent vitrectomy with subtenonal anesthesia.

Eligibility criteria: Inclusion criteria

* Vitrectomy with subtenonal anesthesia in the time-period from 1.12.2022 to 31.8.2023
* Indication for surgery: retinal detachment, epiretinal membrane, or full thickness macular hole
* Questionnaire for subtenonal anesthesia was already answered by the patients
* Age 18 and older

Exclusion criteria

Any of the following will exclude a subject from the study:

* Surgery in general anesthesia
* Questionnaire missing or incomplete

Primary outcomes:
measure: subjective pain score during surgery
timeFrame: assessed within 24 hours sfter surgery
Secondary outcomes:
Other outcomes:
Locations:
city: Vienna
country: Austria
facility: Vienna Institute for Research in Ocular Surgery
Study officials:
affiliation: Vienna Institute for Research in Ocular Surgery
name: Oliver Findl
role: STUDY_CHAIR
References:
citation: El-Hindy N, Johnston RL, Jaycock P, Eke T, Braga AJ, Tole DM, Galloway P, Sparrow JM; UK EPR user group. The Cataract National Dataset Electronic Multi-centre Audit of 55,567 operations: anaesthetic techniques and complications. Eye (Lond). 2009 Jan;23(1):50-5. doi: 10.1038/sj.eye.6703031. Epub 2008 Mar 14.
citation: Lai MM, Lai JC, Lee WH, Huang JJ, Patel S, Ying HS, Melia M, Haller JA, Handa JT. Comparison of retrobulbar and sub-Tenon's capsule injection of local anesthetic in vitreoretinal surgery. Ophthalmology. 2005 Apr;112(4):574-9. doi: 10.1016/j.ophtha.2004.10.043.
citation: Friedberg MA, Spellman FA, Pilkerton AR, Perraut LE Jr, Stephens RF. An alternative technique of local anesthesia for vitreoretinal surgery. Arch Ophthalmol. 1991 Nov;109(11):1615-6. doi: 10.1001/archopht.1991.01080110153055.