Document Detail

Measurement of ophthalmodynamometric pressure with the vented-gas forced-infusion system during pars plana vitrectomy.
MedLine Citation:
PMID:  20207958     Owner:  NLM     Status:  MEDLINE    
PURPOSE: To measure ophthalmodynamometric pressure (ODP) with the vented-gas forced-infusion (VGFI) system during vitrectomy in patients with various vitreoretinal disorders and to investigate factors related to ODP. METHODS: This study included 169 eyes of 169 patients undergoing pars plana vitrectomy. After core vitrectomy, the intraocular pressure was gradually raised by using the VGFI system. When the central retinal artery or its branches on the optic nerve head showed pulsations, the pressure was recorded as ODP. Diastolic blood pressure (DBP) and systolic blood pressure (SBP) were measured simultaneously with ODP. Multiple regression analysis was performed to investigate the relationship between ODP and various explanatory variables: DBP, SBP, age, presence of diabetic mellitus (DM) and hypertension (HT), body mass index, and serum total cholesterol. RESULTS: ODP was 66.9 +/- 12.5 mm Hg (range, 15.5-103.7), and it correlated significantly with DBP (r = 0.60, P < 0.0001) but not with SBP (r = 0.12, P = 0.12). ODP in DM patients who had proliferative diabetic retinopathy and diabetic macular edema was lower than that in non-DM patients, whereas DBP was not significantly different between the two groups. Similar results were obtained in HT patients. Multiple regression analysis revealed that ODP had a significant correlation with DBP (P < 0.0001), presence of DM (P = 0.02), and presence of HT (P = 0.03). CONCLUSIONS: VGFI is a new method of determining ODP. ODP was significantly associated with DBP and was lower in patients with DM and HT.
Fumiki Okamoto; Yoshimi Sugiura; Yoshifumi Okamoto; Yumi Hasegawa; Takahiro Hiraoka; Tetsuro Oshika
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Publication Detail:
Type:  Journal Article     Date:  2010-03-05
Journal Detail:
Title:  Investigative ophthalmology & visual science     Volume:  51     ISSN:  1552-5783     ISO Abbreviation:  Invest. Ophthalmol. Vis. Sci.     Publication Date:  2010 Aug 
Date Detail:
Created Date:  2010-07-23     Completed Date:  2010-08-20     Revised Date:  -    
Medline Journal Info:
Nlm Unique ID:  7703701     Medline TA:  Invest Ophthalmol Vis Sci     Country:  United States    
Other Details:
Languages:  eng     Pagination:  4195-9     Citation Subset:  IM    
Department of Ophthalmology, Institute of Clinical Medicine, University of Tsukuba, Ibaraki, Japan.
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MeSH Terms
Blood Pressure / physiology*
Body Mass Index
Cholesterol / blood
Diabetes Mellitus / physiopathology
Diabetic Retinopathy / physiopathology
Intraocular Pressure / physiology*
Macular Edema / physiopathology
Middle Aged
Ophthalmodynamometry / methods*
Retinal Artery / physiology*
Retinal Diseases / surgery
Transducers, Pressure
Reg. No./Substance:

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