Evaluation of intraocular pressure and ocular perfusion pressure during hemodialysis

Franco, Pedro Veras; Moura, Álissa Elen Formiga; Rocha, Liana Gonçalves Aragão; Pessoa, Lizandra Fujita de Paula; Sousa, Eduardo Nogueira Lima; Andrade Neto, Leiria de; Ferreira, Juliana de Lucena Martins

doi:10.5935/0034-7280.20180067

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Revista Brasileira de Oftalmologia

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Original Article • Rev. bras.oftalmol. 77 (6) • Nov-Dec 2018 • https://doi.org/10.5935/0034-7280.20180067 copy

Evaluation of intraocular pressure and ocular perfusion pressure during hemodialysis

Authorship SCIMAGO INSTITUTIONS RANKINGS

Abstract

Objective:

To evaluate the variation of intraocular pressure and ocular perfusion pressure during hemodialysis sessions, in the pre, intra (hourly) and post dialytic periods, in patients treated at Hemodialysis Reference Services in Fortaleza - CE.

Methods:

The study was longitudinal and prospective. 45 patients underwent hemodialysis. All patients were recruited to undergo an ophthalmologic examination, in addition to the intraocular pressure measurement with Tonopen.

Results:

The sample consisted of 26 men and 19 women with a mean age of 51.8 years. The study revealed that there is an important difference between pre and post hemodialysis intraocular pressure, decreasing by an average of 2.59 mmHg. When analyzing ocular perfusion pressure, an average increase of 1.85 mmHg was found between the onset and end of hemodialysis.

Conclusion:

According to the present study, the hemodialysis process is an apparently safe procedure in relation to altered intraocular pressure and ocular perfusion pressure, as causes of ocular pathologies, mainly glaucoma.

Keywords:
Intraocular pressure; Arterial pressure; Tonometry, ocular; Renal dialysis; Eye health

Variable	PAS	PAD	Average BP	IOP RE	IOP LE	OPP RE	OPP LE
Pre-HD
Average	138.64	78.31	98.42	24.84	22.50	40.77	43.11
Standard Deviation	26.04	17.90	16.79	8.65	6.79	12.61	11.37
During HD - 1^a hora
Average	139.49	77.13	97.92	23.63	21.43	41.65	43.85
Standard Deviation	21.34	12.02	13.31	8.00	6.28	11.34	11.62
During HD - 2^a hora
Average	146.04	78.82	101.23	22.53	21.37	45.39	46.51
Standard Deviation	24.57	12.01	14.78	6.36	6.14	10.30	11.35
During HD - 3^a hora
Average	143.11	78.02	99.72	24.14	22.72	42.67	44.09
Standard Deviation	23.03	11.49	13.33	6.74	5.83	10.90	10.82
During HD - 4^a hora
Average	140.67	77.78	98.74	20.86	21.23	44.97	44.59
Standard Deviation	24.86	14.49	13.33	6.74	5.83	10.90	10.82
Post-HD
Average	135.76	78.09	97.31	20.86	21.30	44.02	43.57
Standard Deviation	23.15	11.74	13.19	5.77	4.75	10.62	9.93

		Delta_IOP R	Delta_IOP L	Delta_OPP R	Delta OPP L
Delta_IOP R	Pearson Correlation	1	0.616^ Correlation is significant at the 0.01 level (2-tailed).	0.477^ Correlation is significant at the 0.01 level (2-tailed).	- 0.144
	Sig. (2-tailed)		0,000	0.001	0.345
Delta_IOP L	Pearson Correlation	0.616^ Correlation is significant at the 0.01 level (2-tailed).	1	- 0.009	0.377^* * Correlation is significant at the 0.05 level (2-tailed).
	Sig. (2-tailed)	0.000		0.953	0.011
Delta_OPP R	Pearson Correlation	0.477^ Correlation is significant at the 0.01 level (2-tailed).	-0.009	1	0.332^* * Correlation is significant at the 0.05 level (2-tailed).
	Sig. (2-tailed)	0.001	0.953		0.026
Delta OPP L	Pearson Correlation	0.345	0.011	0.026	1
	Sig. (2-tailed)	0.345	0.011	0.026

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[1] Corresponding author: Pedro Veras Franco, Av. Padre Antônio Tomás, 3535 - aptº 502- Cocó - Fortaleza - Ceará. ZIP Code: 60192-120. E-mail: pedrofrancooftalmo@gmail.com