Intraocular Pressure During ECT: New Study From Belgium in JECT

 Out on PubMed, from researchers in Belgium, is this case report in JECT:

Lateralized Raise in Intraocular Pressure During Electroconvulsive Therapy: A Tonometry Pilot Study.

Vandeurzen J, Vansteelandt K, Lemmens S, Sienaert P.J ECT. 2022 Aug 9. doi: 10.1097/YCT.0000000000000879. Online ahead of print.PMID: 35969842



The abstract is copied below:

Objective: The aim of this study was to evaluate intraocular pressure (IOP) changes during and after electroconvulsive therapy.

Methods: In 20 patients, IOP was measured using a handheld iCare tonometer before, during, and up to 15 minutes after the seizure. Electrode placement was either right unilateral (RUL) or bilateral (BL). Statistical analyses were done at baseline, during, and 15 minutes after the seizure.

Results: In the RUL group (n = 14), the IOP in the left eye increased from 14.8 mm Hg before the seizure to 27.8 mm Hg during the seizure (P = 0.0001) and decreased to 14.0 mm Hg after the seizure (P = 0.0002). The IOP in the right eye increased from 15.4 mm Hg before the seizure to 34.4 mm Hg during the seizure (P = 0.0001) and decreased to 16.0 mm Hg after the seizure (P = 0.0002).In the BL group (n = 6), the IOP in the left eye increased from 13.0 mm Hg before the seizure to 26.3 mm Hg during the seizure (P = 0.1250) and decreased to 14.5 mm Hg after the seizure (P = 0.250). In the right eye, the IOP increased from 13.3 mm Hg before the seizure to 28.4 mm Hg during the seizure (P = 0.1250) and decreased to 13.7 mm Hg after the seizure (P = 0.25).When the results were compared between the 2 electrode placements, the difference in IOP between the right and left eye was higher in the RUL group during (RUL 6.7 mm Hg vs BL 2.0 mm Hg, P = 0.0231) and after (RUL 2.1 mm Hg vs BL -0.8 mm Hg, P = 0.0492) the seizure.

Conclusions: RUL stimulation with electroconvulsive therapy causes a rise in IOP that is partially lateralized, ipsilateral to the side of stimulation.

The pdf is here.

And from the text:





This is a fascinating study showing the expected transient increase in IOP with ECT; the finding of greater rise in IOP in the right eye with RUL stimulation is interesting, as are the speculations about possible mechanisms of action.
While the clinical implications of this study are likely very limited, any increased knowledge of the physiological effects of ECT is most welcome.
A full read, mostly for ECT physiology nerds and ophthalmologists, is about 10 minutes.
Kudos to Dr. Sienaert and colleagues for this little gem.



Comments

Post a Comment

Popular posts from this blog

ECT vs Ketamine: NEJM Article Sets Up False Equivalency

Image
Out on PubMed, from investigators in the US, is this study: Ketamine versus  ECT   for Nonpsychotic Treatment-Resistant Major Depression. Anand A, Mathew SJ, Sanacora G, Murrough JW, Goes FS, Altinay M, Aloysi AS, Asghar-Ali AA, Barnett BS, Chang LC, Collins KA, Costi S, Iqbal S, Jha MK, Krishnan K, Malone DA, Nikayin S, Nissen SE, Ostroff RB, Reti IM, Wilkinson ST, Wolski K, Hu B. N Engl J Med. 2023 May 24. doi: 10.1056/NEJMoa2302399. Online ahead of print. PMID:  37224232 The abstract is copied below: Background:  Electroconvulsive therapy (ECT) and subanesthetic intravenous ketamine are both currently used for treatment-resistant major depression, but the comparative effectiveness of the two treatments remains uncertain. Methods:  We conducted an open-label, randomized, noninferiority trial involving patients referred to ECT clinics for treatment-resistant major depression . Patients with treatment-resistant major depression without psychosis were recruited and assigned in a 1:1 rat
Read more

RUL ECT vs Low Amplitude Seizure Therapy (LAP-ST)

Image
Out on PubMed, from the team in Augusta, Georgia, is this study: Double-Blinded Randomized Pilot Clinical Trial Comparing Cognitive Side Effects of Standard Ultra-Brief Right Unilateral ECT to 0.5 A Low Amplitude Seizure Therapy (LAP-ST). Youssef NA, McCall WV, Ravilla D, McCloud L, Rosenquist PB. Brain Sci. 2020 Dec 13;10(12):E979. doi: 10.3390/brainsci10120979. PMID:  33322138 The pdf is here . And from the Introduction : In theory, LAP-ST can be helpful because of the direct effect of lower electric current, but the principal reason is that LAP-ST has a more focal electric field (EF) [ 34 , 35 ]. The current amplitude is the primary factor that drives the EF into brain regions located deeper in the brain and is responsible for cognition and memory such as the hippocampus and temporal lobe [ 33 , 35 ]. This extra focality of the EF can minimize or avoid high EF stimulation to the deeper hippocampal and temporal lobe regions [ 33 , 35 ]. Minimization of deeper stimulation by using LAP
Read more

ECT For Children at a University Hospital: New Study in JECT

Image
 Out on PubMed, from authors at Vanderbilt and Mass General,, is this article: Use of   ECT   for Children With and Without Catatonia: A Single-Site Retrospective Analysis. Smith JR, Baldwin I, Termini KA, McGonigle T, Vandekar S, Luccarelli J. J ECT. 2024 Jan 25. doi: 10.1097/YCT.0000000000000993. Online ahead of print. PMID:  38265759 The abstract is copied below: Objectives: The objective study was to investigate the safety and efficacy of electroconvulsive therapy (ECT) in a retrospective cohort of pediatric patients. Methods: A single-site retrospective analysis was conducted of patients aged younger than 18 years who received ECT in a private university hospital from January 28, 2012 to April 8, 2023. Treatment efficacy and adverse events were determined retrospectively through review of the medical record. Results: A total of 36 pediatric patients met the inclusion criteria. Catatonia was the most common presenting indication for ECT, followed by psychosis and suicidal ideation.
Read more