Evaluation of visual field parameters in patients with chronic obstructive pulmonary disease

Demir, Helin Deniz; Inonu, Handan; Kurt, Semiha; Doruk, Sibel; Aydın, Erdinç; Etikán, Ílker

doi:10.1111/j.1755-3768.2012.02432.x

Cited by 12 publications

(11 citation statements)

References 29 publications

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“…This finding is in accordance with the findings of studies by Barbieri et al (11) (1996), Ozge et al (12) (2005), Sezer M et al (13) (2007), Hafez et al (14) (2009), Gupta et al (15) (2010), Demir et al (16) …”

Section: Discussionsupporting

confidence: 83%

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Comparative Study of Visual Evoked Potentials in Copd Patients and Healthy

Shaikh¹,

Parlewar²

2018

IJABMS

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Background: COPD is a 3 rd leading cause of death worldwide. Estimates suggest Prevalence and burden of COPD will increase in coming decades. It is a multisystem disorder that is frequently associated with significant extrapulmonary manifestations. These associations have a significant negative impact over the prognosis and health related quality of life in patients with COPD. Aim & Objective:The present study is carried out to evaluate effects of COPD on Visual evoked potentials before any clinical signs and symptoms of visual impairment appear.Method: Study was done in 50 COPD patients having disease duration of more than 5 years with stable course of illness and 50 age and sex matched healthy adults as controls. Pattern reversal visual evoked potential recording was done with monocular stimulation.Result: There was statistically significant increase in P100 Latency of both eyes in COPD patients as compared to controls. Statistically non-significant decrease in P100 amplitude was seen. Prolongation of P100 latency in COPD patients is due to development of chronic hypoxemia leading to tissue hypoxia causing slower conduction in visual pathway suggesting demyelination.

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Section: Discussionsupporting

confidence: 83%

“…Similar findings are observed in studies by Sezer M (13) (2007), Demir HD (16) (2012). (11) (1996) studied the auditory and visual evoked potential in patients with mild or moderate chronic respiratory insufficiency and found significantly prolonged P100 latency in patients.…”

Section: (2012)supporting

confidence: 79%

Comparative Study of Visual Evoked Potentials in Copd Patients and Healthy

Shaikh¹,

Parlewar²

2018

IJABMS

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“…Acute or chronic hypoxemia due to changes of oxygen tension in healthy, older people or by chronic lung pathology can cause a polyneuropathy and likewise visual functionality alterations as seen in normal subjects or in patients affected from chronic obstructive pulmonary diseases (COPD) [7–12]. …”

Section: Introductionmentioning

confidence: 99%

Cystic Fibrosis and New Trends by Ophthalmological Evaluation: A Pilot Study

Nebbioso

Quattrucci

Leggieri

et al. 2014

BioMed Research International

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Background. Cystic fibrosis (CF) is characterized by hypoxia that affects several organic tissues. Retinal ganglion cells may suffer from the hypoxic status, and this may lead to alterations of retinal nerve fiber. Methods. Twenty-two eyes in CF patients were analyzed. A complete ocular evaluation and visual field exams of the 30 central degrees were performed using the frequency doubling technology (FDT). Forced expiratory volume in one second (FEV1%), forced vital capacity (FVC%), oxyhaemoglobin saturation (SpO2%), and hematocrit (Ht%) have been calculated. FDT analyzed parameters were mean deviation (MD) and pattern standard deviation (PSD). Pearson's correlation was chosen as statistical analysis. Results. Data showed statistically significant relationship between MD and Ht% (r value −0.18; P = 0.04), MD and FEV1% (r value −0.68; P = 0.001), and MD and FVC% (r value −0.45; P = 0.005). Moreover, there were correlations between PSD and Ht% (r value 0.29; P = 0.03), PSD and SpO2% (r value −0.31; P = 0.01), PSD and FEV1% (r value 0.71; P = 0.0005), and PSD and FVC% (r value 0.63; P = 0.003). Conclusions. The oxygen supply alterations might determine hypoxia of the ganglion cells causing a decrease of receptive optic nerve fiber activity. This method could be also useful to evaluate indirectly pulmonary activity of the CF disease.

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“…; Demir et al. ) along with defect on the visual field, which implies the neuropathological aspect of mild‐to‐moderate hypoxaemia on the retina and the optic nerve itself (Demir et al. ).…”

Section: Discussionmentioning

confidence: 99%

“…) and thus possibly playing role in the optic nerve and retinal involvement (Demir et al. ) in the disease. As already mentioned, Palkovits et al.…”

Section: Introductionmentioning

confidence: 99%

Retinal oximetry and systemic arterial oxygen levels

Eliasdottir

2018

Acta Ophthalmologica

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Acta Ophthalmologica 2018 100% s urefnis: Inn€ ondun 100% s urefnis j ok s urefnismettun slagaeðlinga ı 94.5 AE 3.8% til samanburðar við 92.0 AE 3.7% aður en h un h ofst (n = 30, p < 0.0001). I bl aaeðlingum j okst s urefnismettunin ı 76.2 AE 8.0% fr a 51.3 AE 5.6% (p < 0.0001) aður en inn€ ondunin h ofst. Mismunur s urefnismettunar ı slag-og bl aaeðlingum laekkaði marktaekt a meðan a inn€ ondun s urefnisins st oð (18.3 AE 9.0% versus 40.7 AE 5.7% aður, p < 0.0001). Sj onhimnus urefnismaelingar ı alvarlegri langvinnri lungnateppu:An s urefnismeðferðar maeldist sj onhimnu-s urefnismettunin marktaekt laegri hj a f olki með alvarlega langvinna lungnateppu en hj a heilbrigða samanburðarh opnum baeði ı slag-(87.2 AE 4.9% versus 93.4 AE 4.3%, p = 0.02, n = 11) og ı bl aaeðlingum (45.0 AE 10.3% versus 55.2 AE 5.5%, p = 0.01). Ekki reyndist maerktaekur munur a mismuni s urefnismettunar ı slag-og bl aaeðlingum milli þessara h opa (p = 0.17). Inn€ ondun s urefnismeðferðar j ok marktaekt s urefnismettunina ı slagaeðlingum (87.2 AE 4.9% versus 89.5 AE 6.0%, p = 0.02) en ekki ı bl aaeðlingum (45.0 AE 10.3% versus 46.7 AE 12.8%, p = 0.3). Sj onhimnu-s urefnismaelingarnar s yndu l ıtið eitt laegri gildi en fingurmaelingar (mean percentage points difference = À3.1 AE 5.5) og ıfarandi slagaeðamaelingar (À5.0 AE 5.4). Sj onhimnu-s urefnismaelingar ı n yburum: Lj osþ ettnihlutfallið ı slagaeðlingum sj onhimnunnar maeldist marktaekt laegra en ı bl aaeðlingum (0.256 AE 0.041 versus 421 AE 0.089, n = 28, p < 0.001, parað t-pr of). AEðav ıdd slagaeðlinga reyndist marktaekt minni en ı blaeðlingum (14.1 AE 2.7 versus 19.7 AE 3.7 pixlar, p < 0.001). Alyktanir: Niðurst€ oður ranns oknanna s yna að sj onhimnu-s urefnismaelirinn er naemur fyrir staðbundnum og kerfisbundnum breytingum a s urefnismettun ı miðlaegum aeðum. Sj onhimnu-s urefnismaelingar s yna eil ıtið laegri gildi en slagaeða-og fingurmaelingar. Mismuninn m a að € ollum l ıkindum rekja til n alaegrar legu miðslagaeðarinnar við miðbl aaeðina innan sj ontaugarinnar (countercurrent exchange) og kv€ orðunar a sj onhimnu-s urefnismaelinum. Þr att fyrir þennan mun, gefa ranns oknirnar v ısbendingar um að v ıkka megi notagildi taekisins yfir ı maelingar a s urefnisb uskap ı miðlaegum aeðum bl oðr asarinnar. Endurskoða þarf kv€ orðunina a maelitaekinu og með tilkomu taekniframfara er m€ ogulega unnt að sannreyna gildi maeliaðferðarinnar a svaefingadeildum og hj a alvarlega veikum sj uklingum a gj€ orgaeslu. Ranns oknin a ungab€ ornunum gefur v ısbendingar um að sj onhimnu-s urefnismaelingar s eu alitlegur kostur til mats a s urefnismettun hj a n yburum. Lykilorð: Sj onhimnuaeðar, s urefnismaelingar, miðlaeg bl oðr as, miðbl aaeðalokun ı sj onhimnu, langvinn lungnateppa. Ongoing efforts to improve noninvasive oximetryDespite recent advances and ongoing efforts to improve the existing technology, noninvasive oximetry modalities are still inferior to invasive monitoring. The drawback of current technology underpins the need for ongoing endeavour to improve and develop noninvasive method fo...

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Evaluation of visual field parameters in patients with chronic obstructive pulmonary disease

Cited by 12 publications

References 29 publications

Comparative Study of Visual Evoked Potentials in Copd Patients and Healthy

Comparative Study of Visual Evoked Potentials in Copd Patients and Healthy

Cystic Fibrosis and New Trends by Ophthalmological Evaluation: A Pilot Study

Retinal oximetry and systemic arterial oxygen levels

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