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Correlation between Intraocular Pressure Fluctuation with Postural Change and Postoperative Intraocular Pressure in Relation to the Time Course after Trabeculectomy.

Hirooka K, Tenkumo K, Nitta E, Sato S - J Ophthalmol (2014)

Bottom Line: Postural IOP changes were less than 3 mmHg in those patients who did not require needle revision at every visit.However, in patients who did require needle revision, the increase in the posture-induced IOP was greater than 3 mmHg prior to the increase in the sitting position IOP.Conclusions.

View Article: PubMed Central - PubMed

Affiliation: Department of Ophthalmology, Kagawa University Faculty of Medicine, 1750-1 Ikenobe, Miki, Kagawa 761-0793, Japan.

ABSTRACT
Background. To investigate the correlation between intraocular pressure (IOP) fluctuation with postural change and IOP in relation to the time course after trabeculectomy. Methods. A total of 29 patients who had previously undergone primary trabeculectomy with mitomycin C were examined. IOP was obtained at 1, 2, 3, 6, and 12 months and then every 6 months postoperatively. Results. The postural IOP difference before surgery was 3.0 ± 1.8 mmHg, which was reduced to 0.9 ± 1.1 mmHg at 1 month, 1.0 ± 1.0 mmHg at 2 months, 1.3 ± 2.0 mmHg at 3 months, 1.3 ± 1.4 mmHg at 6 months, 1.4 ± 1.5 mmHg at 12 months, and 1.1 ± 0.7 mmHg at 18 months after trabeculectomy (P < 0.01 each visit). The filtering surgery failed in 7 out of 29 eyes. Postural IOP changes were less than 3 mmHg in those patients who did not require needle revision at every visit. However, in patients who did require needle revision, the increase in the posture-induced IOP was greater than 3 mmHg prior to the increase in the sitting position IOP. Conclusions. Assessment of postural IOP changes after trabeculectomy might be potentially useful for predicting IOP changes after trabeculectomy.

No MeSH data available.


Related in: MedlinePlus

Posture-induced intraocular pressure (IOP) changes measured with an ICare rebound tonometer before and after trabeculectomy over an 18-month period. The IOPs in both the sitting and the lateral decubitus positions were decreased at every visit after the trabeculectomy (P < 0.01 every visit; Bonferroni test). The IOP in the lateral decubitus position was significantly increased (P < 0.05; paired t-test). The squares, upper bars, and lower bars indicate 25–75%, 95%, and 5% percentiles, respectively.
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fig2: Posture-induced intraocular pressure (IOP) changes measured with an ICare rebound tonometer before and after trabeculectomy over an 18-month period. The IOPs in both the sitting and the lateral decubitus positions were decreased at every visit after the trabeculectomy (P < 0.01 every visit; Bonferroni test). The IOP in the lateral decubitus position was significantly increased (P < 0.05; paired t-test). The squares, upper bars, and lower bars indicate 25–75%, 95%, and 5% percentiles, respectively.

Mentions: At baseline, the mean IOP in the sitting position was 16.7 ± 5.5 mmHg (range; 9–30 mmHg) (Figure 2). After assuming the lateral decubitus position, the IOP increased in all patients. Prior to surgery, the IOP in the lateral decubitus position was significantly higher than that in the sitting position (P < 0.001). The mean change in the IOP between the two body positions was 3.0 ± 1.6 mmHg. One month after trabeculectomy, there were significant reductions of the IOP in the sitting position to 7.8 ± 3.2 mmHg (range; 2–15 mmHg) and in the lateral decubitus position to 8.6 ± 3.9 mmHg (range; 3–18 mmHg) (Figure 2). The difference in the IOP between the sitting and lateral decubitus positions was statistically significant (P < 0.001; paired t-test). Postoperative changes in the IOP for the sitting and lateral decubitus positions were 7.8 ± 3.3 mmHg and 8.8 ± 4.1 mmHg at 2 months (P < 0.001; paired t-test), 8.1 ± 3.6 mmHg and 9.4 ± 5.3 mmHg at 3 months (P = 0.002; paired t-test), 7.7 ± 2.8 mmHg and 9.0 ± 3.6 mmHg at 6 months (P < 0.001; paired t-test), 8.9 ± 3.2 mmHg and 10.3 ± 4.1 mmHg at 12 months (P < 0.001; paired t-test), and 8.3 ± 2.8 mmHg and 9.1 ± 3.6 mmHg at 18 months (P = 0.03; paired t-test), respectively. The degree of reduction of the posture-induced IOPs relative to the difference before the surgery was significant at 1, 2, 3, 6, 12, and 18 months postoperatively (P < 0.001, P < 0.001, P = 0.001, P < 0.001, P = 0.002, and P = 0.001, resp.; Bonferroni test).


Correlation between Intraocular Pressure Fluctuation with Postural Change and Postoperative Intraocular Pressure in Relation to the Time Course after Trabeculectomy.

Hirooka K, Tenkumo K, Nitta E, Sato S - J Ophthalmol (2014)

Posture-induced intraocular pressure (IOP) changes measured with an ICare rebound tonometer before and after trabeculectomy over an 18-month period. The IOPs in both the sitting and the lateral decubitus positions were decreased at every visit after the trabeculectomy (P < 0.01 every visit; Bonferroni test). The IOP in the lateral decubitus position was significantly increased (P < 0.05; paired t-test). The squares, upper bars, and lower bars indicate 25–75%, 95%, and 5% percentiles, respectively.
© Copyright Policy - open-access
Related In: Results  -  Collection

Show All Figures
getmorefigures.php?uid=PMC4127218&req=5

fig2: Posture-induced intraocular pressure (IOP) changes measured with an ICare rebound tonometer before and after trabeculectomy over an 18-month period. The IOPs in both the sitting and the lateral decubitus positions were decreased at every visit after the trabeculectomy (P < 0.01 every visit; Bonferroni test). The IOP in the lateral decubitus position was significantly increased (P < 0.05; paired t-test). The squares, upper bars, and lower bars indicate 25–75%, 95%, and 5% percentiles, respectively.
Mentions: At baseline, the mean IOP in the sitting position was 16.7 ± 5.5 mmHg (range; 9–30 mmHg) (Figure 2). After assuming the lateral decubitus position, the IOP increased in all patients. Prior to surgery, the IOP in the lateral decubitus position was significantly higher than that in the sitting position (P < 0.001). The mean change in the IOP between the two body positions was 3.0 ± 1.6 mmHg. One month after trabeculectomy, there were significant reductions of the IOP in the sitting position to 7.8 ± 3.2 mmHg (range; 2–15 mmHg) and in the lateral decubitus position to 8.6 ± 3.9 mmHg (range; 3–18 mmHg) (Figure 2). The difference in the IOP between the sitting and lateral decubitus positions was statistically significant (P < 0.001; paired t-test). Postoperative changes in the IOP for the sitting and lateral decubitus positions were 7.8 ± 3.3 mmHg and 8.8 ± 4.1 mmHg at 2 months (P < 0.001; paired t-test), 8.1 ± 3.6 mmHg and 9.4 ± 5.3 mmHg at 3 months (P = 0.002; paired t-test), 7.7 ± 2.8 mmHg and 9.0 ± 3.6 mmHg at 6 months (P < 0.001; paired t-test), 8.9 ± 3.2 mmHg and 10.3 ± 4.1 mmHg at 12 months (P < 0.001; paired t-test), and 8.3 ± 2.8 mmHg and 9.1 ± 3.6 mmHg at 18 months (P = 0.03; paired t-test), respectively. The degree of reduction of the posture-induced IOPs relative to the difference before the surgery was significant at 1, 2, 3, 6, 12, and 18 months postoperatively (P < 0.001, P < 0.001, P = 0.001, P < 0.001, P = 0.002, and P = 0.001, resp.; Bonferroni test).

Bottom Line: Postural IOP changes were less than 3 mmHg in those patients who did not require needle revision at every visit.However, in patients who did require needle revision, the increase in the posture-induced IOP was greater than 3 mmHg prior to the increase in the sitting position IOP.Conclusions.

View Article: PubMed Central - PubMed

Affiliation: Department of Ophthalmology, Kagawa University Faculty of Medicine, 1750-1 Ikenobe, Miki, Kagawa 761-0793, Japan.

ABSTRACT
Background. To investigate the correlation between intraocular pressure (IOP) fluctuation with postural change and IOP in relation to the time course after trabeculectomy. Methods. A total of 29 patients who had previously undergone primary trabeculectomy with mitomycin C were examined. IOP was obtained at 1, 2, 3, 6, and 12 months and then every 6 months postoperatively. Results. The postural IOP difference before surgery was 3.0 ± 1.8 mmHg, which was reduced to 0.9 ± 1.1 mmHg at 1 month, 1.0 ± 1.0 mmHg at 2 months, 1.3 ± 2.0 mmHg at 3 months, 1.3 ± 1.4 mmHg at 6 months, 1.4 ± 1.5 mmHg at 12 months, and 1.1 ± 0.7 mmHg at 18 months after trabeculectomy (P < 0.01 each visit). The filtering surgery failed in 7 out of 29 eyes. Postural IOP changes were less than 3 mmHg in those patients who did not require needle revision at every visit. However, in patients who did require needle revision, the increase in the posture-induced IOP was greater than 3 mmHg prior to the increase in the sitting position IOP. Conclusions. Assessment of postural IOP changes after trabeculectomy might be potentially useful for predicting IOP changes after trabeculectomy.

No MeSH data available.


Related in: MedlinePlus