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Özata Gündoğdu K, Doğan E, Çelik E, Alagöz G. Retinal nerve fiber layer and ganglion cell complex thickness in diabetic smokers without diabetic retinopathy. Cutan Ocul Toxicol 2024; 43:22-26. [PMID: 37874321 DOI: 10.1080/15569527.2023.2268162] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/21/2023] [Accepted: 09/23/2023] [Indexed: 10/25/2023]
Abstract
PURPOSE To compare the thickness of the retinal nerve fiber layer (RNFL) and macular ganglion cell-inner plexiform layer (GC-IPL) in smoker and nonsmoker diabetics without diabetic retinopathy. MATERIALS AND METHODS Patients with diabetes were divided into two groups according to their smoking status: Group 1 consisted of 38 smoker diabetics who had chronically smoked more than 20 cigarettes per day for more than five years; Group 2 consisted of 38 nonsmoker diabetics. After a detailed ophthalmologic examination, the mean and regional (superior, supratemporal, inferior, inferotemporal, temporal, nasal, superonasal, and inferonasal) RNFL and GC-IPL thicknesses were measured with spectral-domain optic coherence tomography (SD-OCT) and compared between groups. RESULTS The mean age was 54.7 ± 10.5 and 51.2 ± 9.7 years in the smoker and nonsmoker groups, respectively (p = 0.14). Gender, duration of diabetes, and the mean axial length were similar between groups (p:0.43, p:0.54, p: 0.52, respectively). Mean RNFL thickness was 89.1 ± 8.0 µm in the smoker group and 93.4 ± 7.0 µm in the nonsmoker group, and it was significantly thinner in the smoker group (p = 0.01). The temporal RNFL thickness in the smoker group was thinner than in the nonsmoker group (p = 0.02). There was no difference in superior, inferior, and nasal RNFL thicknesses between the groups (p = 0.31, p = 0.12, p = 0.39, respectively). The mean macular GC-IPL thickness of the smoker and nonsmoker groups was 78.53 ± 15.74 µm and 83.08 ± 5.85 µm, respectively (p = 0.09). Superior, superonasal, inferonasal, inferior, inferotemporal, and superotemporal quadrant GC-IPL thicknesses were similar between the groups (p = 0.07, p = 0.60, p = 0.55, p = 0.77, p = 0.71, p = 0.08, respectively). The groups showed no difference in minimum GC-IPL thickness (p = 0.43). There was a significant negative correlation between smoking exposure and mean, inferior quadrant RNFL thicknesses in the smoker group (p = 0.04, r= -0.32, and p = 0.01, r= -0.39, respectively). CONCLUSION Mean RNFL thickness was significantly thinner in smoker diabetics. Although not statistically significant, especially mean, superior, and superotemporal GC-IPL was thinner in smoker diabetics. The results suggest a potential association between the coexistence of diabetes and smoking with alterations in RNFL and GC-IPL thickness.
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Affiliation(s)
- Kübra Özata Gündoğdu
- Department of Ophthalmology, Sakarya University Education and Research Hospital, Sakarya, Turkey
| | - Emine Doğan
- Department of Ophthalmology, Sakarya University Education and Research Hospital, Sakarya, Turkey
| | - Erkan Çelik
- Department of Ophthalmology, Sakarya University Education and Research Hospital, Sakarya, Turkey
| | - Gürsoy Alagöz
- Department of Ophthalmology, Sakarya University Education and Research Hospital, Sakarya, Turkey
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Goel R, Shah S, Sundar G, Arora R, Gupta S, Khullar T. Orbital and ocular perfusion in thyroid eye disease. Surv Ophthalmol 2023; 68:481-506. [PMID: 36681278 DOI: 10.1016/j.survophthal.2023.01.003] [Citation(s) in RCA: 3] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/03/2022] [Revised: 12/20/2022] [Accepted: 01/13/2023] [Indexed: 01/20/2023]
Abstract
Thyroid eye disease (TED) is characterized by enlargement of extraocular muscles, an increase in retrobulbar fat, orbital fibrosis, and fluctuations in plasma thyroid hormone levels in most patients, often associated with raised autoantibody titers. The occurrence of orbital space conflict compromises the orbital perfusion, unchecked progression of which results in irreversible loss of visual acuity and visual fields. The quantitative assessment of orbital perfusion can be done by measurement of blood flow velocities in the superior ophthalmic vein (SOV), ophthalmic artery (OA), central retinal artery (CRA), and posterior ciliary artery by color Doppler imaging. The retinal and choroidal microvasculature is studied by optical coherence tomography and optical coherence tomography angiography. The orbital and ocular perfusion fluctuates during the course of TED. Orbital congestion is reflected by the reduction or reversal of SOV flow and an increase in subfoveal choroidal thickness. The active phase is characterized by high blood flow velocities of the OA and CRA. The onset of dysthyroid optic neuropathy is associated with reduced arterial perfusion and reduction in parafoveal and peripapillary vascular density. Orbital decompression improves the SOV flow and decreases the resistivity index of CRA. Sequential evaluation of orbital hemodynamic changes can thus supplement the clinical scoring systems for monitoring and planning intervention in TED.
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Affiliation(s)
- Ruchi Goel
- Department of Ophthalmology, Maulana Azad Medical College, New Delhi, India.
| | - Shalin Shah
- Department of Ophthalmology, Maulana Azad Medical College, New Delhi, India
| | - Gangadhara Sundar
- Department of Ophthalmology, National University Hospital, Kent Ridge, Singapore
| | - Ritu Arora
- Department of Ophthalmology, Maulana Azad Medical College, New Delhi, India
| | - Swati Gupta
- Department of Radiology, Maulana Azad Medical College, New Delhi, India
| | - Tamanna Khullar
- Department of Radiology, Maulana Azad Medical College, New Delhi, India
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3
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Gouravani M, Salehi MA, Mohammadi S, Arevalo JF. Choroidal thickness in eyes of migraine patients measured using spectral domain-optical coherence tomography: A meta-analysis. Surv Ophthalmol 2023; 68:67-77. [PMID: 35093402 DOI: 10.1016/j.survophthal.2022.01.007] [Citation(s) in RCA: 4] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/14/2021] [Revised: 01/19/2022] [Accepted: 01/24/2022] [Indexed: 02/01/2023]
Abstract
Recent developments in high-resolution optical coherence tomography allow evaluation of even the slightest changes of choroidal thickness in various disorders, including migraine. In this review, we analyze the choroidal thickness measurements reported in various studies that compare results between migraineurs and healthy individuals. We searched PubMed, Scopus, and EMBASE to identify relevant literature reporting choroidal thickness in the migraineurs' different macular regions compared with healthy controls. A fixed-effects or random-effects model was applied for the meta-analysis based on the heterogeneity level. Moreover, subgroup analyses, meta-regression, publication bias, and quality assessment were also performed. We identified ten studies involving 580 migraineurs (173 with aura, 128 without aura, and 279 without specification for the presence of aura) and 407 healthy controls to be included in this meta-analysis. Results indicated that average choroidal thickness was significantly decreased in the migraine cases (SMD, -1.28; 95% CI, -2.47 to -0.08; P = 0.04) compared to healthy individuals. Furthermore, both with aura (SMD, -1.16; 95% CI, -1.39 to -0.92; P < 0.0001) and without aura migraine patients (SMD, -0.81; 95% CI, -1.28 to -0.34; P < 0.001) had significantly thinner subfoveal choroid compared to healthy controls. Moreover, subfoveal choroidal thickness in the migraineurs with aura was significantly lower than those without aura (SMD, -0.45; 95% CI, -0.84 to -0.05; P = 0.03). The alterations in choroidal thickness, suggestive of migraine's neurovascular pathophysiology, were tentatively confirmed by this study's findings. Further longitudinal studies with more diverse settings are required to derive more definitive conclusions.
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Affiliation(s)
- Mahdi Gouravani
- School of Medicine, Tehran University of Medical Sciences, Tehran, Iran
| | | | - Soheil Mohammadi
- School of Medicine, Tehran University of Medical Sciences, Tehran, Iran.
| | - J Fernando Arevalo
- Wilmer Eye Institute, Johns Hopkins University School of Medicine, Baltimore, USA
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Eslani M, Nishida T, Weinreb RN, Baxter S, Mahmoudinezhad G, Kamalipour A, Yarmohammadi A, Zangwill LM, Moghimi S. Effects of Smoking on Optic Nerve Head Microvasculature Density in Glaucoma. J Glaucoma 2022; 31:710-716. [PMID: 35882030 PMCID: PMC9994055 DOI: 10.1097/ijg.0000000000002081] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/12/2022] [Accepted: 06/24/2022] [Indexed: 01/22/2023]
Abstract
PRCIS Decreased superficial whole image capillary density was observed in open angle glaucoma (OAG) patients with high smoking intensity. PURPOSE To investigate the effects of smoking on optic nerve head capillary density measured by optical coherence tomography angiography in patients with OAG. METHODS In this retrospective cross-sectional study, perimetric and preperimetric glaucoma patients enrolled in the Diagnostic Innovations in Glaucoma Study (DIGS) with optical coherence tomography angiography follow-up were included. Univariable and multivariable linear mixed analysis were performed to determine the effects of different variables on the superficial whole image capillary density. RESULTS A total of 432 eyes of 271 glaucoma patients comprising 63 preperimetric (106 eyes) and 208 perimetric OAG (326 eyes) were included. A history of tobacco consumption was reported in 105 (38.8%). Among smokers, mean (95% confidence interval) smoking intensity was 12.8 (10.2, 15.5) pack-years. After adjusting for age, glaucoma severity and other confounders, each 10 pack-year increase in smoking intensity (95% confidence interval) was associated with -0.54 (-1.06, -0.02) % lower whole image capillary density ( P =0.041). CONCLUSIONS Smoking intensity is associated with reduced optic nerve vessel density in glaucoma.
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Affiliation(s)
- Medi Eslani
- Hamilton Glaucoma Center, Shiley Eye Institute, Viterbi Family Department of Ophthalmology
| | - Takashi Nishida
- Hamilton Glaucoma Center, Shiley Eye Institute, Viterbi Family Department of Ophthalmology
| | - Robert N Weinreb
- Hamilton Glaucoma Center, Shiley Eye Institute, Viterbi Family Department of Ophthalmology
| | - Sally Baxter
- Hamilton Glaucoma Center, Shiley Eye Institute, Viterbi Family Department of Ophthalmology
- Biomedical Informatics, University of California San Diego, La Jolla, CA
| | | | - Alireza Kamalipour
- Hamilton Glaucoma Center, Shiley Eye Institute, Viterbi Family Department of Ophthalmology
| | - Adeleh Yarmohammadi
- Hamilton Glaucoma Center, Shiley Eye Institute, Viterbi Family Department of Ophthalmology
| | - Linda M Zangwill
- Hamilton Glaucoma Center, Shiley Eye Institute, Viterbi Family Department of Ophthalmology
| | - Sasan Moghimi
- Hamilton Glaucoma Center, Shiley Eye Institute, Viterbi Family Department of Ophthalmology
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Işik MU, Akay F, Akmaz B, Güven YZ, Şahin ÖF. Evaluation of subclinical alterations in retinal layers and microvascular structures with OCT and OCTA in healthy young short-term smokers. Photodiagnosis Photodyn Ther 2021; 36:102482. [PMID: 34390879 DOI: 10.1016/j.pdpdt.2021.102482] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/10/2021] [Revised: 08/02/2021] [Accepted: 08/09/2021] [Indexed: 11/26/2022]
Abstract
PURPOSE To detect the changes that can be determined with optical coherence tomography (OCT) and optical coherence tomography angiography (OCTA) in young and short-term smokers. METHOD In this cross-sectional, observational, and comparative study, 45 "healthy" smokers and 45 healthy non-smoker control participants were included. Those with a smoking history between 1 year to 5 years and an average of 10-30 cigarettes per day were included in the study. OCT and OCTA measurements were made at least 60 min after smoking and at least 8 h after caffeine-containing beverages in order to end the effect of nicotine on systemic and retinal blood flow in the smoking group. RESULTS The mean smoking period was 2.2 ± 0.13 years. Mean macular thickness(MMT), retinal nerve fiber layer(RNFL), and choroidal thickness(Cht) were significantly lower in the smoker group, while ganglion cell-inner plexiform layer(GC-IPL) thickness was higher. Vessel density(VD) values were similar between groups, while perfusion density(PD) values were significantly higher in the smoker group. There were significant correlations between MMT and outer VD, outer PD, foveal avascular zone(FAZ) perimeter and circularity index. FAZ area and central VD and PD were inversely correlated. Also, FAZ circularity index and subfoveal, nasal, and temporal ChTs were positively correlated. CONCLUSION Despite the short-term smoking, ischemic effects were observed in retinochoroidal and vascular structures.
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Affiliation(s)
- Mehmed Uğur Işik
- Kastamonu University Faculty of Medicine, Department of Ophthalmology, Kastamonu, Turkey.
| | - Fahrettin Akay
- Katip Çelebi University Atatürk Educating and Research Hospital, Department of Ophthalmology, İzmir, Turkey
| | - Berkay Akmaz
- Katip Çelebi University Atatürk Educating and Research Hospital, Department of Ophthalmology, İzmir, Turkey
| | - Yusuf Ziya Güven
- Katip Çelebi University Atatürk Educating and Research Hospital, Department of Ophthalmology, İzmir, Turkey
| | - Ömer Faruk Şahin
- Etimesgut State Hospital, Department of Ophthalmology, Ankara, Turkey
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Aboud SAA, Hammouda LM, Saif MYS, Ahmed SS. Effect of smoking on the macula and optic nerve integrity using optical coherence tomography angiography. Eur J Ophthalmol 2021; 32:436-442. [PMID: 33567885 DOI: 10.1177/1120672121992960] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/16/2022]
Abstract
OBJECTIVE To investigate the effect of chronic smoking on the macula and optic nerve integrity using optical coherence tomography angiography (OCTA). METHODS This prospective, comparative study involved the right eyes of 160 healthy subjects (80 smokers group, and 80 control group). OCTA scanning was performed for all subjects. All macular subfields thickness, peripapillary retinal nerve fiber layer (RNFL) thickness, macular ganglion cell complex (GCC) thickness, superficial and deep macular vessel density, foveal avascular zone (FAZ) area, and the macular outer retina flow area, were measured and analyzed. RESULTS The thickness of some macular subfields, inferior GCC, and RNFL was statistically significantly lower in the smokers' group (p < 0.05). The FAZ area was 0.409 ± 0.048 mm2 in the smokers' group and 0.327 ± 0.055 mm2 in the control group (p < 0.001). The superficial foveal VD was 31.35 ± 5.79% in the smokers' group and 33.63 ± 4.78% in the control group (p = 0.06). The deep foveal VD was 39.38 ± 4.56% in the smokers' group and 34.15 ± 6.57% in the control group (p ≤ 0.001). The superficial and deep parafoveal VD was 52.09 ± 4.56% and 59.99 ± 2.25% respectively in the smokers' group, and 54.75 ± 2.30% and 55.58 ± 4.69% respectively in the control group (p < 0.05). The macular outer retina flow area was 1.29 ± 0.12 mm2 in the smokers' group and 1.16 ± 0.11 mm2 in the control group (p < 0.001). CONCLUSION Chronic smoking affected the integrity of the macula and optic nerve. It decreased the macular VD, enlarged the FAZ, and increased outer retinal flow area.
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Talebnejad MR, Khazaei P, Jahanbani-Ardakani H, Saberikia Z, Moghimi Sarani E, Khalili MR. Effects of chronic methamphetamine abuse on the retinal nerve fiber layer, ganglion cell layer and Bruch's membrane opening minimum rim width. Neurotoxicology 2020; 80:140-143. [PMID: 32726659 DOI: 10.1016/j.neuro.2020.07.005] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/18/2020] [Revised: 07/17/2020] [Accepted: 07/18/2020] [Indexed: 11/25/2022]
Abstract
BACKGROUND Methamphetamine (Meth) is a highly addictive and hallucinogenic agent which is used as the second most common illicit drug globally. Meth could affect the retina and optic nerve by inducing the release of vasoconstrictive agents such as endothelin 1 and induction of severe oxidative stress with accumulation of reactive oxygen species. AIM To evaluate the effects of chronic Meth abuse on the retinal nerve fiber layer (RNFL), ganglion cell layer (GCL) and the Bruch's membrane opening minimum rim width (MRW). METHOD In this case-control study, we recruited 55 Meth abusers and 49 healthy individuals with mean age of 44.63 ± 0.97 and 43.08 ± 0.91 years, respectively. RNFL thickness, GCL thickness and MRW were evaluated using optical coherence tomography. RESULTS We found statistically significant decrease in RNFL, MRW thickness in Meth abusers (P: 0.002 and P: 0.006, respectively). We did not detect statistically significant difference regarding GCL thickness between the groups (P = 0.320). Our results showed a weak but statistically significant correlation of Meth dose increment and decrement of RNFL thickness ((P: 0.005, r = -0.193) and MRW (P: 0.013, r = -0.174). We found no correlation between duration of Meth consumption with RNFL and MRW thickness (P: 0.205, r= -0.124; P: 0.771, r= -0.029, respectively). CONCLUSION We found a statistically significant adverse association in meth abusers with RNFL thickness and MRW. These two parameters were also statistically associated with the meth dose as measured by daily dose of Meth. Although we found a decrease in the GCL thickness, it did not reach statistical significance.
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Affiliation(s)
- Mohammad Reza Talebnejad
- Poostchi Ophthalmology Research Center, Department of Ophthalmology, Shiraz University of Medical Sciences, Shiraz, Iran
| | - Peyman Khazaei
- Poostchi Ophthalmology Research Center, Department of Ophthalmology, Shiraz University of Medical Sciences, Shiraz, Iran
| | - Hamidreza Jahanbani-Ardakani
- Poostchi Ophthalmology Research Center, Department of Ophthalmology, Shiraz University of Medical Sciences, Shiraz, Iran
| | - Zahra Saberikia
- Department of Biology, College of Sciences, Shiraz University, Shiraz, Iran
| | - Ebrahim Moghimi Sarani
- Department of Psychiatry, Research Center for Psychiatry and Behavioral Science, Shiraz University of Medical Sciences, Shiraz, Iran
| | - Mohammad Reza Khalili
- Poostchi Ophthalmology Research Center, Department of Ophthalmology, Shiraz University of Medical Sciences, Shiraz, Iran.
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Koçak N, Yeter V, Subaşı M, Yücel ÖE, Can E. Use of choroidal vascularity index for choroidal structural evaluation in smokers: an optical coherence tomography study. Cutan Ocul Toxicol 2020; 39:298-303. [PMID: 32623911 DOI: 10.1080/15569527.2020.1793162] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/23/2022]
Abstract
PURPOSE To compare the choroidal vascularity index (CVI) and choroidal thickness (CT) in smokers and healthy non-smoking subjects using spectral-domain optical coherence tomography (SD-OCT). METHODS Forty-two smokers with no systemic disorders and 46 age-sex matched healthy volunteers were included in the study. SD-OCT was used to measure choroidal thickness at the fovea and 1500 µm intervals from the foveal centre in both nasal and temporal directions. Choroidal images were binarized and segmented to the luminal area (LA), stromal area (SA), and total choroidal area (TCA) using ImageJ software. The choroidal vascularity index was calculated as the ratio of LA to TCA. Smoking subjects were divided into three groups according to pack-year exposure: 10-20 pack-years, 20-30 pack-years, and >30 pack-years. Subgroup analysis was performed to evaluate the relationship between CT/CVI/LA/SA/TCA and pack-years. RESULTS The mean age of the smokers and non-smokers was 43.1 ± 7.26 years and 41.82 ± 9.92 years, respectively (p = 0.51). The mean subfoveal choroidal thickness was 301.57 ± 55.04 µm in smokers and 303.38 ± 53.42 µm in non-smokers (p = 0.826). No significant difference was observed between groups for CT values in the subfoveal location or at 1500 µm intervals in the nasal and temporal direction from the fovea. The CVI was significantly lower in smokers (65.4 ± 2.3%) than in non-smokers (66.3 ± 2.5%) (p = 0.021). In the subgroup analysis, subjects with >20 pack-years of smoking had a significantly lower CVI than non-smokers, but those between 10-20 pack-years did not. A negative correlation was found between the CVI and smoking, as measured by cigarette pack-years (r = -0.226, p = 0.04). CONCLUSION The CVI was significantly decreased in smokers compared to healthy controls. The study results suggest that the CVI could be a non-invasive tool for evaluating choroidal vascular changes in smokers.
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Affiliation(s)
- Nurullah Koçak
- Department of Ophthalmology, Ondokuzmayıs University Hospital, Samsun, Turkey
| | - Volkan Yeter
- Department of Ophthalmology, Ondokuzmayıs University Hospital, Samsun, Turkey
| | - Mustafa Subaşı
- Department of Ophthalmology, Ondokuzmayıs University Hospital, Samsun, Turkey
| | - Özlem Eşki Yücel
- Department of Ophthalmology, Ondokuzmayıs University Hospital, Samsun, Turkey
| | - Ertuğrul Can
- Department of Ophthalmology, Ondokuzmayıs University Hospital, Samsun, Turkey
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Çiloğlu E, Unal F, Sukgen EA, Kocluk Y, Dogan NC. Evaluation of Foveal Avascular Zone and Capillary Plexus in Smokers Using Optical Coherence Tomography Angiography. J Curr Ophthalmol 2020; 32:53-57. [PMID: 32510014 PMCID: PMC7265278 DOI: 10.1016/j.joco.2019.09.002] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/28/2019] [Revised: 09/18/2019] [Accepted: 09/27/2019] [Indexed: 11/24/2022] Open
Abstract
Purpose: To evaluate the macular microvasculature in smokers in comparison to healthy subjects using optical coherence tomography angiography (OCTA). Methods: Fifty chronic, regular smokers and 50 healthy non-smokers, as a control group, were recruited for the study. Foveal avascular zone (FAZ) area (mm2) and vessel density (VD) (%) in the superficial (SCP) and deep capillary plexus (DCP) were evaluated. Results: FAZ area was 0.424 ± 0.100 mm2 in the smoker group and 0.333 ± 0.093 mm2 in the non-smoking control group (P = 0.002). The deep foveal VD was 31.76 ± 6.33% in the smoker group and 53.09 ± 5.88% in the non-smoking control group (P = 0.006). Superficial foveal and parafoveal, deep parafoveal VD were not statistically different between the groups (P = 0.120), (P = 0.337), (P = 0.287), respectively. Conclusion: In our study, there was an enlargement of FAZ and reduction of foveal VD at DCP in the eyes of smokers compared with non-smoking adults.
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Affiliation(s)
- Emine Çiloğlu
- Department of Ophthalmology, Adana City Training and Research Hospital, Adana, Turkey
| | - Fikret Unal
- Department of Ophthalmology, Adana City Training and Research Hospital, Adana, Turkey
| | - Emine Alyamac Sukgen
- Department of Ophthalmology, Adana City Training and Research Hospital, Adana, Turkey
| | - Yusuf Kocluk
- Department of Ophthalmology, Adana City Training and Research Hospital, Adana, Turkey
| | - Nese Cetin Dogan
- Department of Ophthalmology, Adana City Training and Research Hospital, Adana, Turkey
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Impact of Carotid Endarterectomy on Choroidal Thickness and Volume in Enhanced Depth Optical Coherence Tomography Imaging. J Ophthalmol 2020; 2020:8326207. [PMID: 32280535 PMCID: PMC7125458 DOI: 10.1155/2020/8326207] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/25/2019] [Accepted: 01/23/2020] [Indexed: 02/06/2023] Open
Abstract
Purpose Carotid endarterectomy (CEA) is considered an effective therapeutic method for improving ocular circulation. The choroid is a predominantly vascular tissue; thus, systemic and local vascular alterations may influence its morphology and function. The aim of the current study was to analyse changes in choroidal thickness and volume in patients with significant internal carotid artery stenosis (ICAS) before and after unilateral CEA. Methods The 42 eyes of the 21 asymptomatic patients included in the study were divided into two groups: those ipsilateral (EIE) and those contralateral (ECE) to CEA. All participants underwent a complete ophthalmologic examination, including enhanced depth imaging-optical coherence tomography (EDI-OCT). A comparative analysis of subfoveal thickness (CT) and choroidal volume (CV) measured in nine Early Treatment of Diabetic Retinopathy Study (ETDRS) subfields at baseline, on the 2nd day after CEA, and in the 3rd month after CEA was performed. Results In the EIE and ECE groups, no significant differences in either CT or CV values before and on the 2nd day after the CEA were observed. In the EIE group, a significant increase in CT and CV in the 3rd month after CEA compared to baseline was noted in the specific ETDRS region. Changes in CT and CV after surgery were positively correlated with the participants' physical activity status and diastolic blood pressure and negatively correlated with the participants' age and smoking status. Additionally, the analysis of changes in CV after CEA showed a positive correlation between the EIE and ECE groups. Conclusions CT and CV fluctuations in the central and perifoveal areas visualized with EDI-OCT enabled the observation of the processes of tissue adaptation to variable blood flow conditions.
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Teberik K. The Effect of Smoking on Macular, Choroidal, and Retina Nerve Fiber Layer Thickness. Turk J Ophthalmol 2019; 49:20-24. [PMID: 30829021 PMCID: PMC6416485 DOI: 10.4274/tjo.galenos.2018.80588] [Citation(s) in RCA: 16] [Impact Index Per Article: 3.2] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/19/2017] [Accepted: 08/27/2018] [Indexed: 12/01/2022] Open
Abstract
Objectives This study aimed to compare the thickness of the macula, choroid, and peripapillary retina nerve fiber layer (RNFL) in smokers with those of healthy, nonsmoking individuals using spectral domain optical coherence tomography (SD-OCT). Materials and Methods Sixty-eight healthy smokers with an average of 19.75 pack-years and 71 nonsmoker subjects (control group) were included in the study. Macular thickness, RNFL thickness, and choroidal thickness (CT) were measured by SD-OCT. Results The mean age of the smokers was 42.76±6.97 years and that of the control group was 41.15±11.61 years (p=0.32). Inferonasal and temporal RNFL thicknesses were 121.60±27.40 μm and 69.75±9.82 μm in the smokers group and 109.05±21.71 μm and 75.95±15.01 μm in the nonsmoker group, respectively. The differences were statistically significant (p=0.003, p=0.005, respectively). Central macular thickness (CMT) was 222.97±18.95 μm and subfoveal CT was 369.52±105.36 μm in the smoker group, while these values were 222.98±17.72 μm and 347.42±104.63 μm in the nonsmoker group, respectively. There were no significant differences in these comparisons (p=0.99, p=0.49, respectively). A significant negative correlation was found between smoking exposure and nasal and temporal CT. Conclusion The results of our study revealed that RNFL thickness was decreased but CMT and CT were not affected in healthy chronic smokers.
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Affiliation(s)
- Kuddusi Teberik
- Düzce University Faculty of Medicine, Department of Ophthalmology, Düzce, Turkey
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Systemic Disease and Long-term Intraocular Pressure Mean, Peak, and Variability in Nonglaucomatous Eyes. Am J Ophthalmol 2018; 193:184-196. [PMID: 29981739 DOI: 10.1016/j.ajo.2018.06.021] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/11/2018] [Revised: 06/26/2018] [Accepted: 06/28/2018] [Indexed: 12/25/2022]
Abstract
PURPOSE Elevated intraocular pressure (IOP) is a well-known risk factor in glaucoma development and progression. As most glaucoma risk factors are not modifiable, IOP remains the sole focus of medical and surgical therapy. Identifying modifiable factors and their effects on IOP, such as systemic diseases, is therefore of interest. The objective is to assess the long-term, longitudinal relationship between systemic diseases and IOP mean, peak, and variability, including diabetes, hypertension, body mass index (BMI), and smoking status. DESIGN Secondary analysis of randomized clinical trial data. METHODS Longitudinal IOP and systemic disease data from the Age-Related Eye Disease Study (AREDS), a randomized clinical trial of high-dose antioxidants, was analyzed. STUDY POPULATION A total of 3909 older participants without a reported diagnosis of glaucoma or glaucoma treatment during AREDS with up to 12 years of annual IOP and systemic disease data. MAIN OUTCOME MEASURES Independent systemic disease risk factors associated with IOP. RESULTS Univariate analysis identified numerous systemic disease factors associated with IOP mean, peak, and variability. Longitudinal adjusted models identified diabetes, obesity, and systolic hypertension as significantly associated with increased IOP, while systemic beta-blocker use was inversely associated. CONCLUSIONS Results demonstrate a relationship between multiple systemic diseases and IOP; moreover, they demonstrate that systemic diseases influence additional parameters beyond mean IOP, such as IOP peak and variability. Although only to be taken within the context of IOP, these population-level trends reveal potentially modifiable factors in IOP control, and are particularly important in the context of increasing obesity and diabetes prevalence rates in American adults.
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EFFECT OF SMOKING ON MACULAR FUNCTION AND STRUCTURE IN ACTIVE SMOKERS VERSUS PASSIVE SMOKERS. Retina 2018; 38:1031-1040. [DOI: 10.1097/iae.0000000000001632] [Citation(s) in RCA: 26] [Impact Index Per Article: 4.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/25/2022]
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Sánchez Ramos JA, Espinosa Soto IC, Ramírez Estudillo JA. Análisis del grosor coroideo en personas fumadoras obtenido mediante Swept Source-OCT. REVISTA MEXICANA DE OFTALMOLOGÍA 2017. [DOI: 10.1016/j.mexoft.2016.12.001] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022] Open
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Nguyen BN, Lek JJ, Vingrys AJ, McKendrick AM. Clinical impact of migraine for the management of glaucoma patients. Prog Retin Eye Res 2015; 51:107-24. [PMID: 26232725 DOI: 10.1016/j.preteyeres.2015.07.006] [Citation(s) in RCA: 10] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/27/2015] [Revised: 07/23/2015] [Accepted: 07/27/2015] [Indexed: 12/19/2022]
Abstract
Migraine is a common and debilitating primary headache disorder that affects 10-15% of the general population, particularly people of working age. Migraine is relevant to providers of clinical eye-care because migraine attacks are associated with a range of visual sensory symptoms, and because of growing evidence that the results of standard tests of visual function necessary for the diagnosis and monitoring of glaucoma (visual fields, electrophysiology, ocular imaging) can be abnormal due to migraine. These abnormalities are measureable in-between migraine events (the interictal period), despite patients being asymptomatic and otherwise healthy. This picture is further complicated by epidemiological data that suggests an increased prevalence of migraine in patients with glaucoma, particularly in patients with normal tension glaucoma. We discuss how migraine, as a co-morbidity, can confound the results and interpretation of clinical tests that form part of contemporary glaucoma evaluation, and provide practical evidence-based recommendations for the clinical testing and management of patients with migraine who attend eye-care settings.
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Affiliation(s)
- Bao N Nguyen
- Department of Optometry and Vision Sciences, The University of Melbourne, Parkville, Victoria, Australia.
| | - Jia Jia Lek
- Department of Optometry and Vision Sciences, The University of Melbourne, Parkville, Victoria, Australia
| | - Algis J Vingrys
- Department of Optometry and Vision Sciences, The University of Melbourne, Parkville, Victoria, Australia
| | - Allison M McKendrick
- Department of Optometry and Vision Sciences, The University of Melbourne, Parkville, Victoria, Australia
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Örnek N, İnal M, Tulmaç ÖB, Özcan-Dağ Z, Örnek K. Ocular blood flow in polycystic ovary syndrome. J Obstet Gynaecol Res 2015; 41:1080-6. [PMID: 25655141 DOI: 10.1111/jog.12673] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/05/2014] [Accepted: 12/01/2014] [Indexed: 10/24/2022]
Abstract
AIM The aim of this study was to evaluate whether the presence of polycystic ovary syndrome (PCOS) alters ocular blood flow parameters. MATERIAL AND METHODS Color Doppler imaging of the orbital vessels was performed in 41 eyes of 41 patients with PCOS. Forty-eight eyes of 48 age-matched volunteers served as controls. The ophthalmic artery (OA), the central retinal artery and the posterior ciliary artery were examined. Ocular blood flow indices of the peak systolic velocity, diastolic velocity, end-diastolic velocity, systolic/diastolic ratio, resistive index and pulsatility index were computed. RESULTS The peak systolic velocity, diastolic velocity and end-diastolic velocity of the OA, central retinal artery and posterior ciliary artery were significantly increased in PCOS patients in comparison to the controls (all P < 0.001). The mean systolic/diastolic ratio, resistive index and pulsatility index of the OA in PCOS patients were significantly decreased (all P < 0.05). Ocular blood flow velocity was positively correlated with serum luteinizing hormone, follicle-stimulating hormone and total cholesterol levels. There was a significant negative correlation between serum glucose and insulin levels and ocular blood flow velocity. CONCLUSION Ocular blood flow velocity is increased in PCOS patients and vascular resistance seems to decrease only in the OA.
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Affiliation(s)
- Nurgül Örnek
- Department of Ophthalmology, Kırıkkale University School of Medicine, Kırıkkale, Turkey
| | - Mikail İnal
- Department of Radiology, Kırıkkale University School of Medicine, Kırıkkale, Turkey
| | - Özlem Banu Tulmaç
- Department of Gynecology and Obstetrics, Kırıkkale University School of Medicine, Kırıkkale, Turkey
| | - Zeynep Özcan-Dağ
- Department of Gynecology and Obstetrics, Kırıkkale University School of Medicine, Kırıkkale, Turkey
| | - Kemal Örnek
- Department of Ophthalmology, Kırıkkale University School of Medicine, Kırıkkale, Turkey
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Ekinci M, Ceylan E, Çağatay HH, Keleş S, Hüseyinoğlu N, Tanyıldız B, Çakıcı Ö, Kartal B. Retinal nerve fibre layer, ganglion cell layer and choroid thinning in migraine with aura. BMC Ophthalmol 2014; 14:75. [PMID: 24885597 PMCID: PMC4229806 DOI: 10.1186/1471-2415-14-75] [Citation(s) in RCA: 47] [Impact Index Per Article: 4.7] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/13/2013] [Accepted: 05/20/2014] [Indexed: 02/07/2023] Open
Abstract
BACKGROUND The aim of this study was to investigate the thickness of the retinal nerve fiber layer (RNFL), the ganglion cell layer (GCL), and choroid thickness (CT) in patients who have migraines, with and without aura, using spectral optical coherence tomography (OCT). METHODS Forty-five patients who had migraines without aura (Group 1), 45 patients who had migraines with aura (Group 2), and 30 healthy participants (control group) were included in the study. Spectral OCT was used to measure the RNFL, GCL and CT values for all patients. RESULTS The mean age of Group 1, Group 2, and the control group was 34.6 ± 4.3, 32.8 ± 4.9, and 31.8 ± 4.6 years, respectively. The mean attack frequency was 3.6/month in Group 1 and 3.7/month in Group 2. The mean age among the groups (p = 0.27) and number of attacks in migraine patients (p = 0.73) were not significantly different. There was significant thinning in the RNFL and GCL in Group 2 (p < 0.05, p < 0.001 respectively), while there were no significant differences in RNFL and GCL measurements between Group 1 and the control group (p > 0.05). All groups were significantly different from one another with respect to CT, with the most thinning observed in Group 2 (p < 0.001). When all migraine patients (without grouping) were compared with the control group, there were significant differences on all parameters: RNFL thickness, GCC thickness and CT (p < 0.05). CONCLUSIONS RNFL and GCL were significantly thinner in the migraine patients with aura as compared with both the migraine patients without aura and the control subjects. In migraine, both with aura and without aura, patients' choroid thinning should be considered when evaluating ophthalmological findings.
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Affiliation(s)
- Metin Ekinci
- Ophthalmology, Univesity of Kafkas, Kars 36100, Turkey
| | - Erdinç Ceylan
- Ophthalmology, Erzurum Training and Research Hospital Ophthalmology Clinic, Erzurum, Turkey
| | | | | | | | - Burak Tanyıldız
- Department of Ophthalmology, Istanbul University, Istanbul Faculty of Medicine, İstanbul, Turkey
| | - Özgür Çakıcı
- Ophthalmology, University of Muğla Sıtkı Koçman, Muğla, Turkey
| | - Baki Kartal
- Ophthalmology, Erzurum Training and Research Hospital Ophthalmology Clinic, Erzurum, Turkey
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Ekinci M, Hüseyinoğlu N, Hüseyin Çağatay H, Keleş S, Ceylan E, Gökçe G. Choroidal Thickening in Patients with Sleep Apnea Syndrome. Neuroophthalmology 2014; 38:8-13. [PMID: 27928267 DOI: 10.3109/01658107.2013.855241] [Citation(s) in RCA: 7] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/07/2013] [Revised: 09/13/2013] [Accepted: 09/13/2013] [Indexed: 01/15/2023] Open
Abstract
Sleep apnoea syndrome (SAS) is characterised by repetitive episodes of cessation of breathing during sleep, resulting in hypoxaemia and hypercapnia. Ophthalmological consequences such as glaucoma, non-arteritic anterior ischaemic neuropathy and papilloedema are relevant to hypoxaemia. The choroid is a vascular structure that performs several regulatory functions for the retina. Defects in this structure contribute to degenerative, inflammatory, and neovascular changes in the retina. The authors examined the choroidal thickness (CT) in sleep apnoea patients using optical coherence tomograpy (OCT). The sleep apnoea patients were divided into subgroups according to their apnoea-hypopnoea index (AHI) scores, and statistical analysis was performed using the AHI and minimal arterial oxygen saturation (min. Spo2) values. There was a medium-high negative correlation between CT and AHI (Spearman rho: r = -0.744, p = 0.000), and a positive correlation between CT and min. Spo2 values (Pearson correlation: r = 0.308, p = 0.000).
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Affiliation(s)
- Metin Ekinci
- Department of Ophthalmology, University of Kafkas Kars Turkey
| | | | | | - Sadullah Keleş
- Department of Ophthalmology, University of Atatürk Erzurum Turkey
| | - Erdinç Ceylan
- Erzurum Training and Research Hospital Ophthalmology Clinic Erzurum Turkey
| | - Gökçen Gökçe
- Sarıkamış Military Hospital Ophthalmolgy Clinic Kars Turkey
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Bittner AK, Gould JM, Rosenfarb A, Rozanski C, Dagnelie G. A pilot study of an acupuncture protocol to improve visual function in retinitis pigmentosa patients. Clin Exp Optom 2013; 97:240-7. [PMID: 24773463 DOI: 10.1111/cxo.12117] [Citation(s) in RCA: 12] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/22/2013] [Revised: 06/27/2013] [Accepted: 07/02/2013] [Indexed: 11/30/2022] Open
Abstract
BACKGROUND Patients with retinitis pigmentosa are motivated to try complementary or integrative therapies to slow disease progression. Basic science, clinical research and retinitis pigmentosa patients' self-reports support the hypothesis that acupuncture may improve visual function. METHODS A prospective, case series, pilot study enrolled 12 adult patients with RP treated at an academic medical centre with a standardised protocol that combined electroacupuncture to the forehead and below the eyes and acupuncture to the body, at 10 half-hour sessions over two weeks. Pre- and post-treatment tests included Early Treatment Diabetic Retinopathy Study visual acuity (VA), Pelli-Robson contrast sensitivity (CS), Goldmann visual fields, and dark-adapted full-field stimulus threshold (FST)(n = 9). Scotopic Sensitivity Tester-1 (SST-1) dark-adaptometry was performed on the last two subjects. RESULTS Six of 12 subjects had measurable, significant visual function improvements after treatment. Three of nine subjects tested with the FST had a significant 10.3 to 17.5 dB (that is, 13- to 53-fold) improvement in both eyes at one week after acupuncture, maintained for at least 10 to 12 months, which was well outside typical test-retest variability (95% CI: 3-3.5 dB) previously found in retinitis pigmentosa. SST-1 dark-adaptation was shortened in both subjects tested on average by 48.5 per cent at one week (range 36 to 62 per cent across 10 to 30 dB), which was outside typical coefficients of variation of less than 30 per cent previously determined in patients with retinitis pigmentosa and normals. Four of the five subjects with psychophysically measured scotopic sensitivity improvements reported subjective improvements in vision at night or in dark environments. One subject had 0.2 logMAR improvement in VA; another had 0.55 logCS improvement. Another subject developed more than 20 per cent improvement in the area of the Goldmann visual fields. The acupuncture protocol was completed and well tolerated by all, without adverse events or visual loss. CONCLUSIONS Acupuncture entails minimal risk, if administered by a well-trained acupuncturist and may have significant, measurable benefits on residual visual function in patients with retinitis pigmentosa, in particular scotopic sensitivity, which had not previously been studied. These preliminary findings support the need for future controlled studies of potential mechanisms.
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Affiliation(s)
- Ava K Bittner
- Johns Hopkins University, Wilmer Eye Institute, Baltimore, Maryland, USA.
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Mohammadi A, Khorasani N, Moloudi F, Ghasemi-Rad M. Evaluation of retrobulbar blood flow in patients with age-related cataract; color Doppler ultrasonographic findings. Clin Ophthalmol 2011; 5:1521-4. [PMID: 22069356 PMCID: PMC3206125 DOI: 10.2147/opth.s25759] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/27/2022] Open
Abstract
Objectives Cataracts are the most common cause of blindness worldwide, with cataract surgery being the most common ophthalmic procedure. To our best knowledge, this is the first case-control study with a large number of participants to evaluate ocular blood flow in patients with cataracts. Materials and methods Color Doppler and duplex sonography of the orbital vessels was performed in 224 eyes of 112 patients with known bilateral age-related cataracts and in 76 eyes of 38 healthy age- and sex-matched volunteers. Results The mean ± (standard deviation [SD]) of peak systolic velocity (PSV) of the ophthalmic artery in patients with cataracts (34.59 ± 22.49 cm/second) was significantly different to that in controls (52.11 ± 14.01 cm/second) (P < 0.001). The mean ± SD PSV of the central retinal artery in patients with cataracts (15.31 ± 4.93 cm/second) was significantly different to that in controls (9.61 ± 5.64 cm/second) (P < 0.001). Conclusion The mean PSV and resistive index (RI) of the ophthalmic and central retinal arteries were lower in cataract patients when compared with normal subjects. This suggests that ocular hypoperfusion and changes in ocular hemodynamic may have a role in the formation of age-related cataracts.
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Affiliation(s)
- Afshin Mohammadi
- Department of Radiology, Urmia University of Medical Sciences, Urmia, Iran
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Effect of regular smoking on flicker induced retinal vasodilatation in healthy subjects. Microvasc Res 2011; 82:351-5. [DOI: 10.1016/j.mvr.2011.07.001] [Citation(s) in RCA: 36] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/19/2010] [Revised: 07/01/2011] [Accepted: 07/02/2011] [Indexed: 11/19/2022]
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Abstract
BACKGROUND High myopia is associated with a decreased ocular blood flow. In some cases this ocular ischemia may be the cause of severe visual loss. METHODS Three patients with high myopia and progressive loss of visual acuity had a diagnosis of ocular ischemia by color Doppler. Intravenous prostaglandin E1, a powerful vasodilator of the microcirculation, was used to treat the ocular ischemia in all 3 patients. RESULTS The visual acuity improved in all three cases with one patient improving from 20/100 to 20/30. The mean deficit of the visual fields in this patient improved from -19.08 to -9.52 after treatment. The treatment was repeated every 6 weeks to 8 weeks. CONCLUSION Patients with high myopia and progressive visual acuity loss should be evaluated for ocular ischemia. Intravenous prostaglandin E1 should be considered in those cases of ocular ischemia with visual loss. Unfortunately the effect does not last for more than 6 weeks to 8 weeks and needs to be repeated at this interval for extended periods.
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Jacobovicz J, Tolazzi ARD, Timi JR. Doppler ultrasound evaluation of facial transverse and infraorbital arteries: influence of smoking and aging process. Aesthetic Plast Surg 2007; 31:526-31. [PMID: 17659420 DOI: 10.1007/s00266-006-0171-z] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
Abstract
BACKGROUND Plastic surgeons are always concerned about integrity of facial vascularization in smokers and elderly candidates for face-lifting. Using Doppler ultrasound, this study aimed to evaluate influence of chronic smoking and aging on facial transverse and infraorbital artery blood flow. METHODS For this study, 40 healthy volunteer women were submitted to bilateral Doppler ultrasound of facial transverse and infraorbital arteries. Volunteers were divided into three groups: group 1 (13 nonsmoking women ages 18-33 years), group 2 (13 nonsmoking women ages 55-70 years), and group 3 (14 smoking women ages 55-70 years). Blood flow parameters measured were peak systolic velocity, end-diastolic velocity, resistivity index, and pulsatility index. RESULTS Chronic smoking did not cause statistically significant alterations in peak systolic velocity in any of the arteries. However, there was a significant augmentation of end-diastolic velocity and a reduction in resistivity and pulsatility index in both arteries. Aging process did not significantly alter any of the parameters evaluated. Findings in both sides of the face were similar for both arteries. CONCLUSIONS Chronic smoking significantly altered end-diastolic velocity, resistivity, and pulsatility index in regional arterial circulation of the face. Aging process, however, did not significantly influence any of blood flow parameters studied.
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Affiliation(s)
- Joel Jacobovicz
- Postgraduate Division, Department of Surgery, Federal University of Parana, Parana, Brazil.
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Gundogan FC, Erdurman C, Durukan AH, Sobaci G, Bayraktar MZ. Acute effects of cigarette smoking on multifocal electroretinogram. Clin Exp Ophthalmol 2007; 35:32-7. [PMID: 17300568 DOI: 10.1111/j.1442-9071.2006.01384.x] [Citation(s) in RCA: 12] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
Abstract
BACKGROUND Cigarette smoking was shown to have stimulant effects on pattern visual-evoked potentials. The aim of this study was to investigate the acute effects of cigarette smoking on multifocal electroretinogram (mfERG). METHODS This prospective case-control study was held in a tertiary referral centre in Turkish Armed Forces. mfERGs were investigated in a group of habitual smokers (30 right eyes of 30 subjects) in separate real smoking and sham smoking sessions. mfERG responses of the subjects were recorded after overnight abstinence. The responses were averaged over five retinal regions, the central hexagon (CH; central 6 degrees) and four concentric rings (ring 1 [R1; 7-12 degrees], ring 2 [R2; 13-18 degrees], ring 3 [R3; 19-24 degrees], ring 4 [R4; 25-30 degrees]). On each session mfERGs were recorded before (BS) and after smoking (AS) conditions. RESULTS Regarding P1 amplitudes (first positive deflection of the mfERG) in the real smoking sessions, the differences were significant in the CH (BS: 66.2 +/- 16.3 microV, AS: 73.3 +/- 19.6 microV, P < 0.001), in R1 (BS: 44.3 +/- 13.0, AS: 48.3 +/- 16.0, P = 0.004) and in R2 (BS: 30.1 +/- 8.3, AS: 33.7 +/- 9.7, P = 0.002). Similar results were found for N1 amplitudes and P1 and N1 (first negative deflection of the mfERG) latencies in the CH, R1 and R2. The differences in outer retinal areas (R3, R4) in the real smoking sessions and in all rings in the sham smoking sessions were not significant. CONCLUSION Cigarette smoking may stimulate the central retinal areas in the acute phase. This effect may be related with the stimulant effect of nicotine on neurotransmission, deleterious effects on retinal and/or choroidal circulation, carbon monoxide toxicity and nicotine withdrawal.
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Affiliation(s)
- Fatih C Gundogan
- Gulhane Military Medical Academy, Department of Ophthalmology, Ankara, Turkey.
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Griffin TJ, Cheung WS, Zavras AI, Damoulis PD. Postoperative complications following gingival augmentation procedures. J Periodontol 2007; 77:2070-9. [PMID: 17209793 DOI: 10.1902/jop.2006.050296] [Citation(s) in RCA: 218] [Impact Index Per Article: 12.8] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/13/2022]
Abstract
BACKGROUND Postoperative pain, swelling, and bleeding are the most common complications following soft tissue grafting procedures; however, detailed documentation is sparse in the literature. The aims of this prospective study were as follows: 1) to compare the frequency of complication occurrence after free soft tissue grafting (FSTG) or subepithelial connective tissue grafting (SCTG) procedures; 2) to evaluate the use of an acellular dermal matrix (ADM) as the donor tissue alternative to an FSTG or SCTG; and 3) to identify possible predictors for these complications. METHODS Seventy-five FSTG and 256 SCTG procedures were performed in 228 patients by a single operator. In five free soft tissue and 84 bilaminar graft procedures, an ADM was used instead of autogenous tissue. Variables such as the duration and location of procedures, smoking history, gender, and age were recorded. Patients were asked to fill out a questionnaire 1 week after the surgeries regarding postoperative pain, swelling, and bleeding. Data were analyzed using the chi2 test and logistic regression analysis. Odds ratios were calculated for moderate and severe adverse outcomes grouped together. RESULTS The duration of surgical procedures was highly correlated with pain or swelling post-surgically (P = 0.001). Current smokers were three times more likely to experience post-surgical swelling (P = 0.01). Patients who underwent FSTG procedures were three times more likely to develop post-surgical pain (P = 0.002) or bleeding (P = 0.03) compared to those who received SCTG procedures. When an ADM was applied instead of autogenous tissue, the probability of swelling or bleeding was significantly reduced (odds ratio [OR] = 0.46, P = 0.02 and OR = 0.3, P = 0.001, respectively). CONCLUSIONS Long surgical procedures and smoking may increase the severity and frequency of certain post-surgical complications after gingival augmentation procedures. FSTG procedures incur a higher likelihood for postoperative pain or bleeding than SCTG procedures, whereas the application of an ADM may significantly reduce the probability of swelling and bleeding.
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Affiliation(s)
- Terrence J Griffin
- Department of Periodontology, Tufts University School of Dental Medicine, Boston, MA 02111, USA.
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Sighinolfi MC, Mofferdin A, De Stefani S, Micali S, Cicero AFG, Bianchi G. Immediate Improvement in Penile Hemodynamics after Cessation of Smoking: Previous Results. Urology 2007; 69:163-5. [PMID: 17270641 DOI: 10.1016/j.urology.2006.09.026] [Citation(s) in RCA: 27] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/31/2006] [Revised: 06/26/2006] [Accepted: 09/08/2006] [Indexed: 10/23/2022]
Abstract
OBJECTIVES To assess the chronologic relationship between the cessation of smoking and the restoration of erectile function. Smoking is associated with an increased risk of erectile dysfunction. METHODS Twenty active smokers (20 to 40 cigarettes/day) affected by erectile dysfunction (International Index of Erectile Function 5-item score less than 21) were enrolled in the study. The mean age was 40 years. All the patients underwent penile color Doppler ultrasonography during the basic and dynamic phases (10 microg prostaglandin E1). A second Doppler evaluation was performed 24 to 36 hours after cessation of smoking. The peak systolic velocity (PSV) and end-diastolic velocity (EDV) were recorded. The PSV and EDV cutoff value was 30 cm/s and 5 cm/s, respectively. RESULTS Of the 20 patients, 10 (50%) had normal PSV values but only 5 (25%) had normal EDV values at the baseline Doppler evaluation. All the patients (100%) had normal PSV values at the second penile Doppler evaluation after smoking withdrawal, and 17 (85%) also had normal EDV values. The average PSV was 40.1 and 50.3 cm/s (P = 0.09) and the mean EDV was 6.8 and 2.4 cm/s (P <0.01) at the baseline penile Doppler examination and after smoking withdrawal, respectively. CONCLUSIONS Within 24 to 36 hours of the cessation of cigarette smoking, the color Doppler parameters demonstrated a significant improvement in EDV and a trend toward an increase in PSV. Additional clinical evaluation is required to further characterize the expeditious improvement in erectile function after the cessation of smoking.
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Affiliation(s)
- M C Sighinolfi
- Department of Urology, University of Modena, Modena, Italy.
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Yilmaz S, Akarsu C. Changes in cerebral and ocular hemodynamics in Behçet's disease assessed by color-coded duplex sonography. Eur J Radiol 2006; 58:102-9. [PMID: 16466883 DOI: 10.1016/j.ejrad.2006.01.001] [Citation(s) in RCA: 9] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/25/2005] [Revised: 11/28/2005] [Accepted: 01/03/2006] [Indexed: 11/30/2022]
Abstract
AIM To quantify the cerebral and retrobulbar hemodynamics in Behçet's disease with and without ocular involvement and compared with that of healthy controls. MATERIALS AND METHODS Of 51 people studied, 17 had Behçet's disease with ocular involvement, 17 had Behçet's disease without ocular involvement, and 17 were healthy controls. A single eye was examined in each patient. Peak systolic velocity (PSV), end-diastolic velocity (EDV), time-averaged maximum velocity (Tamax), and resistance index (RI) were evaluated in the ophthalmic (OA), posterior ciliary (PCA), central retinal (CRA) and middle cerebral artery (MCA). Additionally, the average blood flow velocities in the central retinal vein (CRV), and acceleration time (AT) and pulsatility index (PI) in the MCA were calculated. RESULTS The mean EDV in the PCA was 25% lower and RI was higher in patients with ocular involvement of BD than in patients without involvement (p = 0.006 and p = 0.005, respectively) and in healthy controls (p = 0.003 and p = 0.004, respectively). Differences were smaller in comparisons of the CRA and absent on comparisons of the OA and MCA. The acceleration time of the MCA was significantly higher in patients with Behçet's disease than in healthy controls (p = 0.03). CONCLUSION This study suggests that the flow hemodynamics in retrobulbar circulation has more altered Behçet's disease with ocular involvement than without ocular involvement and healthy control. Additionally, the cerebral hemodynamic might be affected in patients with Behçet's disease compared with healthy controls.
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Affiliation(s)
- Sevda Yilmaz
- Department of Radiology, School of Medicine, University of Kirikkale, Kirikkale, Turkey.
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Wimpissinger B, Resch H, Berisha F, Weigert G, Schmetterer L, Polak K. Response of retinal blood flow to systemic hyperoxia in smokers and nonsmokers. Graefes Arch Clin Exp Ophthalmol 2005; 243:646-52. [PMID: 15657773 DOI: 10.1007/s00417-004-1083-8] [Citation(s) in RCA: 24] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/23/2004] [Revised: 11/08/2004] [Accepted: 11/09/2004] [Indexed: 10/25/2022] Open
Abstract
BACKGROUND We investigated the influence of chronic smoking on ocular vascular reactivity during breathing of 100% oxygen. METHODS Retinal vascular reactivity was tested during inhalation of 100% oxygen over 10 min. The observer-masked two-cohort study was performed in 24 healthy male volunteers (12 smokers and 12 nonsmokers) using the Zeiss Retinal Vessel Analyzer and laser Doppler velocimetry. From these parameters retinal blood flow was calculated. RESULTS Hyperoxia significantly decreased arterial (smokers: p<0.001 vs baseline; nonsmokers: p=0.003 vs baseline) and venous (smokers: p<0.001 vs baseline; nonsmokers: p<0.001 vs baseline) diameters. This decrease was significantly more pronounced in smokers (arterial diameter: p<0.001, venous diameter: p=0.003). Hyperoxia decreased venous blood flow velocity (smokers: p=0.02 vs baseline; nonsmokers: p<0.001 vs baseline) to a comparable degree (p=0.51). The two groups showed a comparable decrease in retinal blood flow during hyperoxia (smokers: p<0.001 vs baseline; nonsmokers: p<0.001 vs baseline; p=0.76 between groups). The decrease of PCO(2) during inhalation of 100% oxygen was significantly more pronounced in smokers than in nonsmokers (p=0.038). CONCLUSION The present study indicates an abnormal retinal vascular response to hyperoxia in smokers. Further studies are needed to identify possible neural or humoral factors involved in this shifted vasoconstrictory status in smokers.
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Affiliation(s)
- Barbara Wimpissinger
- Department of Clinical Pharmacology, General Hospital Vienna, Währinger Gürtel 18-20, 1090 Vienna, Austria
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Wimpissinger B, Resch H, Berisha F, Weigert G, Schmetterer L, Polak K. Response of choroidal blood flow to carbogen breathing in smokers and non-smokers. Br J Ophthalmol 2004; 88:776-81. [PMID: 15148211 PMCID: PMC1772179 DOI: 10.1136/bjo.2003.031773] [Citation(s) in RCA: 32] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/04/2022]
Abstract
AIM To investigate a potential difference in ocular vascular reactivity during carbogen breathing in optic nerve head, choroid, and retina between healthy smokers and non-smokers. METHODS 25 (13 smokers and 12 non-smokers) healthy male volunteers participated in this observer masked, two cohort study. During inhalation of carbogen (5% CO(2) and 95% O(2)) over 10 minutes measurements were taken using laser Doppler flowmetry to assess submacular choroidal and optic nerve head blood flow, laser interferometry to assess fundus pulsation amplitudes, and retinal vessel analyser (RVA) to assess retinal vessel diameters. RESULTS At baseline choroidal blood flow was higher (p = 0.018, ANOVA) in smokers than in non-smokers. During administration of carbogen the response in choroidal blood flow was significantly different between the two groups: there was an increase in non-smokers after carbogen breathing (p = 0.048) compared with relatively stable blood flow in smokers (p = 0.049 between groups, ANOVA). A similar response pattern was seen for fundus pulsation amplitude, which increased notably after carbogen breathing in non-smokers but not in smokers (p<0.001 between groups, ANOVA). Optic nerve head blood flow and retinal vessel diameters were reduced in both groups to a comparable degree during carbogen breathing. CONCLUSION The study indicated abnormal choroidal vascular reactivity in chronic smokers. These early haemodynamic changes may be related to the increased risk to smokers of developing ocular vascular diseases. The specific mechanisms underlying abnormal choroidal vascular reactivity in chronic smokers remain to be characterised.
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Affiliation(s)
- B Wimpissinger
- Department of Clinical Pharmacology, Allgemeines Krankenhaus Wien, Vienna, Austria
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Pogrzebielski A, Lubaszewski W, Starzycka M, Kawecka-Jaszcz K. Fluorophotometric Evaluation of Blood-Retinal Barrier Permeability in Patients with Essential Hypertension. Ophthalmologica 2004; 218:180-4. [PMID: 15103214 DOI: 10.1159/000076842] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/02/2003] [Accepted: 10/09/2003] [Indexed: 11/19/2022]
Abstract
<i>Aim:</i> The fluorophotometric evaluation of the blood-retinal barrier (BRB) integrity in patients with essential hypertension (EH) without signs of BRB damage. <i>Material and Methods:</i> 55 subjects participated in the study: 36 patients with EH and 19 normotensive healthy volunteers; 22 men and 33 women. The protocol included ophthalmic examination, fluorescein angiography, fluorophotometry, laboratory tests (total cholesterol, LDL and HDL cholesterol, triglycerides, fibrinogen, serum creatinine concentration, fasting glucose concentration, oral glucose test), urinary cotinine concentration measurement and cotinine-creatinine ratio (CCR) calculation. <i>Results:</i> BRB permeability (P<sub>BRB</sub>) in patients with EH was significantly higher than in the control group (2.24 ± 0.68 vs. 1.64 ± 0.64 nm/s; p = 0.003). In hypertensive patients with CCR >50 ng/mg, the P<sub>BRB</sub> was significantly higher than the P<sub>BRB</sub> in healthy volunteers not exposed to smoke (2.32 vs. 1.68 nm/s; p < 0.05). <i>Conclusions:</i> The P<sub>BRB</sub> in patients with EH is significantly higher than that in the normotensive control group, which shows the damaging effect of EH on the BRB.
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Affiliation(s)
- A Pogrzebielski
- Department of Ophthalmology, Jagiellonian University, Medical College, Cracow, Poland.
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