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Tucker-Retter EK, Petritz OA, Westermeyer HD. Mydriasis in eastern box turtles (Terrapene carolina carolina) following topical administration of proparacaine, 10% phenylephrine, and rocuronium bromide. Vet Ophthalmol 2024. [PMID: 38760319 DOI: 10.1111/vop.13229] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/03/2024] [Revised: 04/25/2024] [Accepted: 04/29/2024] [Indexed: 05/19/2024]
Abstract
OBJECTIVE To determine the mydriatic effect of topical 10% phenylephrine with 10 mg/mL rocuronium bromide and compare this protocol with and without pretreatment with proparacaine. ANIMALS STUDIED Ten client-owned pet adult eastern box turtles (Terrapene carolina carolina). PROCEDURES All turtles were sedated with 8 mg/kg alfaxalone intramuscularly. One group of four turtles received four 20 μL drops of 10% phenylephrine and four 20 μL drops of rocuronium bromide in the right eye. Another group of four turtles received one standard drop of proparacaine followed by four 20 μL drops of 10% phenylephrine and four 20 μL drops of rocuronium bromide in the right eye. Two control group turtles received four 20 μL drops of saline in the right eye. The left eye was untreated in all turtles. Drops of the same type were separated by 2 min while drops of different types were separated by 5 min. Pupil size was recorded at 0, 15, 30, 60, 90, 120, 180, 240, and 360 min after administration of the final drop. RESULTS Treatment with 10% phenylephrine and rocuronium bromide resulted in pupil diameter changes from baseline that were statistically significant from zero at 60, 90, and 120 min in the non-proparacaine group and 90 min in the proparacaine group. The time to peak effect was 90 min in the proparacaine group and 75 min in the non-proparacaine group. Saline-treated pupils in the control group decreased in diameter over the study period. Overall, the treated eyes of the proparacaine group and non-proparacaine group were not different from each other, but both dilated more than the control group. CONCLUSIONS Rocuronium bromide and 10% phenylephrine can produce effective and safe mydriasis in eastern box turtles, but there was wide interindividual variation in effectiveness. Proparacaine did not improve the mydriatic effect.
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Affiliation(s)
| | - Olivia A Petritz
- Department of Clinical Sciences, North Carolina State University, College of Veterinary Medicine, Raleigh, North Carolina, USA
| | - Hans D Westermeyer
- Department of Clinical Sciences, North Carolina State University, College of Veterinary Medicine, Raleigh, North Carolina, USA
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Şenocak MG, Yanmaz LE. Effects of propofol alone or in combination with ketamine on intraocular pressure in unpremedicated dogs. Vet Ophthalmol 2024; 27:139-147. [PMID: 37395174 DOI: 10.1111/vop.13127] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/14/2023] [Revised: 06/12/2023] [Accepted: 06/14/2023] [Indexed: 07/04/2023]
Abstract
OBJECTIVE To determine the effects of propofol (P) alone and in combination with ketamine (KP) at ratios of 1:1, 1:2, and 1:3 on intraocular pressure (IOP) in unpremedicated dogs. ANIMALS STUDIED A total of 28 cross-bred healthy dogs. PROCEDURES Dogs were randomly assigned to one of four groups (n = 7 per group) to receive intravenous P or KP at 1:1, 1:2, and 1:3 ratios, respectively. The infusion was administered at 0.6 mg/kg/min for 60 min. IOP, cardiorespiratory variables, rectal temperature (RT), and pedal reflex were recorded every 5 min for 60 min, starting from baseline (BL). RESULTS There was a statistically significant increase in IOP in all groups: P (p = .011), KP 1:1 (p = .003), KP 1:2 (p = .023), and KP 1:3 (p = .008). The IOP increase was less pronounced in the KP 1:2 group and was only significant (p = .023) at T45 compared with BL. A significant correlation was observed between IOP and SpO2 in P (r = -.215, p = .02), KP 1:2 (r = -.579, p < .01), and KP 1:3 (r = -.402, p < .01) groups. IOP significantly increased due to decreased SpO2 below 86.5% (p < .05). CONCLUSIONS Propofol alone and in combination with ketamine may increase preexisting IOP in unpremedicated dogs. SpO2 levels below 86.5% may trigger an increase in IOP. Administering KP in a 1:2 ratio at an infusion rate of 0.6 mg/kg/min does not significantly alter IOP for under 45 min in unpremedicated dogs with sufficient oxygenation.
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Affiliation(s)
- Mümin Gökhan Şenocak
- Department of Surgery, Faculty of Veterinary Medicine, Atatürk University, Erzurum, Turkey
| | - Latif Emrah Yanmaz
- Department of Surgery, Faculty of Veterinary Medicine, Burdur Mehmet Akif Ersoy University, Burdur, Turkey
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Khaleghi M, Sarchahi AA, Kazemi Mehrjerdi H, Rasekh M, Saadati D. Influence of ketamine, propofol or isoflurane on intraocular pressure, heart rate and blood pressure in healthy dogs premedicated with medetomidine and midazolam. Vet Med Sci 2024; 10:e1330. [PMID: 38009426 PMCID: PMC10766053 DOI: 10.1002/vms3.1330] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/08/2023] [Revised: 10/23/2023] [Accepted: 11/07/2023] [Indexed: 11/28/2023] Open
Abstract
BACKGROUND According to the findings of several studies, sedatives and anaesthetics have different effects on the functioning of the cardiovascular system and intraocular pressure (IOP). For accurate diagnosis, treatment and surgery with minimal complications, it is necessary to be aware of the effects of sedatives and anaesthetics on the cardiovascular system and IOP. OBJECTIVES The aim of this study was to evaluate the effects of sedatives (medetomidine and midazolam) and anaesthetics (ketamine, propofol and isoflurane) on IOP, heart rate (HR) and blood pressure in dogs. METHODS In this study, 10 dogs participated in three treatments using a randomised cross-over design, with a 1-week washout period between each treatment. Dogs in all treatments were premedicated with medetomidine and midazolam. Anaesthesia was induced using ketamine, propofol, or isoflurane and maintained for 60 min with the appropriate doses of each drug. The cardiovascular variables (heart rate, and systolic, diastolic and mean arterial pressures) and IOP were measured at different timepoints: before premedication (baseline values, T-Bas), 15 min after medetomidine administration (T-Med), 20 min after midazolam administration (T-Mid) and at 15 (T-15), 30 (T-30), 45 (T-45) and 60 (T-60) min after anaesthesia induction. RESULTS Medetomidine significantly reduced the IOP and HR and did not significantly change the mean arterial pressure (MAP). Midazolam significantly reduced the IOP while did not significantly change the HR and MAP. Ketamine and isoflurane significantly increased the IOP and HR while did not significantly change the MAP. Propofol significantly increased the HR, but did not cause significant changes in IOP and MAP. CONCLUSIONS Considering that anaesthetics are typically administered in conjunction with pre-anaesthetic drugs, the increases in IOP induced by ketamine and isoflurane are not important, as the IOP did not exceed the baseline values. However, further studies are required to investigate these effects in patients with elevated IOP.
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Affiliation(s)
| | - Ali Asghar Sarchahi
- Faculty of Veterinary MedicineDepartment of Clinical SciencesFerdowsi University of MashhadMashhadIran
| | - Hossein Kazemi Mehrjerdi
- Faculty of Veterinary MedicineDepartment of Clinical SciencesFerdowsi University of MashhadMashhadIran
| | - Mehdi Rasekh
- Faculty of Veterinary MedicineDepartment of Clinical SciencesUniversity of ZabolZabolIran
| | - Dariush Saadati
- Faculty of Veterinary MedicineDepartment of Food HygieneUniversity of ZabolZabolIran
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Shilo-Benjamini Y, Pe'er O, Abu Ahmad W, Ofri R. Effect of anesthetic induction with propofol, alfaxalone or ketamine on intraocular pressure in cats: a randomized masked clinical investigation. Vet Anaesth Analg 2023; 50:63-71. [PMID: 36528512 DOI: 10.1016/j.vaa.2022.11.005] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/13/2022] [Revised: 11/11/2022] [Accepted: 11/13/2022] [Indexed: 11/21/2022]
Abstract
OBJECTIVE To compare the effect of propofol, alfaxalone and ketamine on intraocular pressure (IOP) in cats. STUDY DESIGN Prospective, masked, randomized clinical trial. ANIMALS A total of 43 ophthalmologically normal cats scheduled to undergo general anesthesia for various procedures. METHODS Following baseline IOP measurements using applanation tonometry, anesthesia was induced with propofol (n = 15), alfaxalone (n = 14) or ketamine (n = 14) administered intravenously to effect. Then, midazolam (0.3 mg kg-1) was administered intravenously and endotracheal intubation was performed without application of topical anesthesia. The IOP was measured following each intervention. Data was analyzed using one-way anova and repeated-measures mixed design with post hoc analysis. A p-value <0.05 was considered significant. RESULTS Mean ± standard error IOP at baseline was not different among groups (propofol, 18 ± 0.6; alfaxalone, 18 ± 0.7; ketamine, 17 ± 0.5 mmHg). Following induction of anesthesia, IOP increased significantly compared with baseline in the propofol (20 ± 0.7 mmHg), but not in the alfaxalone (19 ± 0.8 mmHg) or ketamine (16 ± 0.7 mmHg) groups. Midazolam administration resulted in significant decrease from the previous measurement in the alfaxalone group (16 ± 0.7 mmHg), but not in the propofol group (19 ± 0.7 mmHg) or the ketamine (16 ± 0.8 mmHg) group. A further decrease was measured after intubation in the alfaxalone group (15 ± 0.9 mmHg). CONCLUSIONS AND CLINICAL RELEVANCE Propofol should be used with caution in cats predisposed to perforation or glaucoma, as any increase in IOP should be avoided.
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Affiliation(s)
- Yael Shilo-Benjamini
- Koret School of Veterinary Medicine, The Robert H. Smith Faculty of Agriculture, Food and Environment, The Hebrew University of Jerusalem, Rehovot, Israel.
| | - Oren Pe'er
- Koret School of Veterinary Medicine, The Robert H. Smith Faculty of Agriculture, Food and Environment, The Hebrew University of Jerusalem, Rehovot, Israel
| | - Wiessam Abu Ahmad
- Koret School of Veterinary Medicine, The Robert H. Smith Faculty of Agriculture, Food and Environment, The Hebrew University of Jerusalem, Rehovot, Israel
| | - Ron Ofri
- Koret School of Veterinary Medicine, The Robert H. Smith Faculty of Agriculture, Food and Environment, The Hebrew University of Jerusalem, Rehovot, Israel
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Raušer P, Mrázová M, Novák L, Staňková L, Pavlík M. Influence of Methadone on Intraocular Pressure, Pupil Size, and Aqueous Tear Production in Healthy Dogs. Top Companion Anim Med 2022; 51:100733. [DOI: 10.1016/j.tcam.2022.100733] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/03/2022] [Revised: 08/29/2022] [Accepted: 10/14/2022] [Indexed: 11/08/2022]
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Martín Bellido V, Vettorato E. Clinical review of the pharmacological and anaesthetic effects of alfaxalone in dogs. J Small Anim Pract 2021; 63:341-361. [PMID: 34893985 DOI: 10.1111/jsap.13454] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/19/2021] [Revised: 09/11/2021] [Accepted: 11/16/2021] [Indexed: 01/02/2023]
Abstract
This clinical review summarises the pharmacological and anaesthetic properties of alfaxalone in the dog. Available pharmacokinetic-pharmacodynamic data and factors affecting the induction dose have been reported. Furthermore, quality of induction and recovery after alfaxalone administration, the use of alfaxalone for total intravenous anaesthesia, and its effects on the cardio-respiratory system, on laryngeal motion, on intraocular pressure and tear production have been evaluated. Finally, the use of alfaxalone in dogs undergoing caesarean section and the effect of intramuscular alfaxalone administration have been considered.
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Affiliation(s)
- V Martín Bellido
- Dick White Referrals, Station Farm - London Road, Six Mile Bottom, Cambridgeshire, CB8 0UH, UK
| | - E Vettorato
- Dick White Referrals, Station Farm - London Road, Six Mile Bottom, Cambridgeshire, CB8 0UH, UK
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Rodrigues B, Ribeiro A, Amorim T, Perotto A, Mendes M, Guimarães L. Intraocular pressure and pupil diameter in healthy cats anesthetized with isoflurane and pre-medicated with isolated acepromazine or in combination with tramadol. ARQ BRAS MED VET ZOO 2021. [DOI: 10.1590/1678-4162-12102] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/22/2022] Open
Abstract
ABSTRACT The objective of this study was to determine changes on intraocular pressure (IOP) and pupil diameter (PD) in healthy cats anesthetized with isoflurane, and premedicated with acepromazine alone or in combination with tramadol. Thirty cats were allocated in two groups (n=15/each) and were treated with acepromazine (AG) or acepromazine/tramadol (ATG). PD and IOP were assessed before and following 30 (PM1), and 40 minutes (PM2) of treatments. Anesthesia was induced with propofol, and IOP and DP were recorded (A10) at 10 minute intervals until the end of anesthesia (A40). IOP decreased in AG and ATG, when comparing baseline with PM1. IOP decreased only in AG, in comparisons between baseline and PM2. During anesthesia, IOP did not change within and between groups. Comparisons between baseline with those recorded at PM1 and 2 showed that PD increased in the ATG. During anesthesia, PD decreased significantly in AG and ATG. Both protocols maintained the IOP within the reference range to perform corneal or intraocular surgery in healthy cats but did not sustain pre-anesthetic pupil dilation observed in ATG.
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Jang M, Son W, Kim H, Won Shin C, Lee I. Effect of intra-abdominal hypertension on the intraocular pressure of the conscious dogs. Vet Med Sci 2021; 7:642-646. [PMID: 33527724 PMCID: PMC8136941 DOI: 10.1002/vms3.441] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/09/2020] [Revised: 08/17/2020] [Accepted: 01/04/2021] [Indexed: 12/24/2022] Open
Abstract
This study was performed to evaluate the effect of intra-abdominal pressure (IAP) on intraocular pressure (IOP) in conscious dog models using a balloon technique to generate intra-abdominal hypertension. Six healthy dogs without ocular abnormalities were evaluated in this study. A balloon device was placed in the intra-abdominal cavity. The abdomen was insufflated to IAP levels of 15 and 25 mmHg using the balloon device. Intraocular pressure was measured at baseline, at IAP levels of 15 and 25 mmHg, and after decompression. In comparison with the mean baseline IOP (15.1 ± 2.0 mmHg), there was a significant increase in IOP at IAP levels of 15 mmHg (20.0 ± 2.1 mmHg) and 25 mmHg (19.9 ± 2.2 mmHg), corresponding to a 32.4% and 31.7% increase from baseline IOP, respectively. The mean IOP after decompression (14.8 ± 1.7 mmHg) was significantly lower compared to those at IAP levels of 15 and 25 mmHg. The present findings demonstrate that increased IAP has a clinically significant effect on IOP in dogs under conscious conditions. Although more research is needed to determine of increased IAP on IOP, these findings suggest that increased IAP leads to mild and reversible increase in IOP.
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Affiliation(s)
- Min Jang
- Department of Veterinary Clinical SciencesCollege of Veterinary MedicineSeoul National UniversitySeoulKorea
- Department of Veterinary SurgeryCollege of Veterinary MedicineKyungpook National UniversityDaeguRepublic of Korea
| | - Won‐Gyun Son
- Department of Veterinary Clinical SciencesCollege of Veterinary MedicineSeoul National UniversitySeoulKorea
| | - Hyunseok Kim
- Department of Veterinary Clinical SciencesCollege of Veterinary MedicineSeoul National UniversitySeoulKorea
| | - Chi Won Shin
- Department of Veterinary Clinical SciencesCollege of Veterinary MedicineSeoul National UniversitySeoulKorea
| | - Inhyung Lee
- Department of Veterinary Clinical SciencesCollege of Veterinary MedicineSeoul National UniversitySeoulKorea
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Shukla AK, Pinard CL, Flynn BL, Bauman CA. Effects of orally administered gabapentin, tramadol, and meloxicam on ocular variables in healthy dogs. Am J Vet Res 2020; 81:973-984. [PMID: 33251843 DOI: 10.2460/ajvr.81.12.973] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/20/2022]
Abstract
OBJECTIVE To determine the effects of gabapentin, tramadol, and meloxicam on tear production, intraocular pressure (IOP), pupillary diameter, tear break-up time, and corneal touch threshold in healthy dogs when given orally for 3 days. ANIMALS 9 healthy research Beagles. PROCEDURES A randomized, blinded, case-crossover study with a 6-sequence, 3-treatment, and 3-period design was performed. A 7-day acclimation period was followed by 3 treatment phases, each with a 3-day treatment period followed by a 7-day washout period for 3 different drugs. Block randomization was used to group dogs for treatments with drug A (gabapentin), B (tramadol), or C (meloxicam). Measurements of tear production, IOP, pupillary diameter, tear break-up time, and corneal touch threshold were performed on a schedule. A generalized mixed-effects linear regression model was created for each ocular variable, accounting for repeated measures within individuals. RESULTS Intraocular pressure was the only variable to have differed substantially between the first 5 and last 2 days of the acclimation period. When treatment phase, day, time of day, dog identification, baseline value, and eye were accounted for, the mean IOP was lower for dogs during treatment phases with gabapentin or tramadol, compared with meloxicam, but this difference was not considered clinically meaningful. CONCLUSIONS AND CLINICAL RELEVANCE Results indicated that a minimum 5-day acclimation period is necessary for IOP measurements to return to baseline in dogs. The statistically identified effect of gabapentin and tramadol on IOP in dogs of the present study warrants further investigation. It is possible that at higher dosages, or in dogs with glaucoma, this effect may become clinically significant.
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Pierce-Tomlin T, Shaughnessy MR, Hofmeister EH. A systematic review of the effects of injectable sedative and anesthetic drugs and inhalant anesthetics on intraocular pressure in the dog. Vet Anaesth Analg 2019; 47:145-151. [PMID: 32014398 DOI: 10.1016/j.vaa.2019.10.006] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/12/2018] [Revised: 10/03/2019] [Accepted: 10/31/2019] [Indexed: 11/16/2022]
Abstract
OBJECTIVE The purpose of this systematic review was to summarize the results of studies that have determined the effect of injectable and inhalant drugs used in anesthesia on intraocular pressure (IOP) in dogs. DATABASES USED A comprehensive search of research literature was performed without language restriction. The search utilized the PubMed, CAB Abstracts and the University of Georgia's Galileo electronic databases using a combination of free text terms 'Ophthalmology', 'Intraocular Pressure', 'Anesthetic', 'Anesthesia', 'Canine' or 'Dog'. The time frame searched was from 1970 to October 2018. Any published research paper that dealt with sedatives or anesthetics administered systemically and the canine eye was evaluated. CONCLUSIONS The effects of many anesthetic drugs in dogs with ocular pathology are largely unknown. Many anesthetic drugs do not induce clinically relevant changes in IOP in dogs with normal eyes, although some studies demonstrated results with statistically significant changes. The dose, route of administration, experimental conditions, drug combinations, timing of measurements, measurement technology and setting or individual animal characteristics may all produce some heterogeneity in results from multiple studies.
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Affiliation(s)
| | | | - Erik H Hofmeister
- Department of Small Animal Medicine and Surgery, College of Veterinary Medicine, University of Georgia, Athens, GA, USA.
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de Linde Henriksen M, Lim C, Sharp JL. Treatment of canine postoperative ocular hypertension with combined latanoprost 0.005% and atropine 1% ophthalmic solutions. Vet Ophthalmol 2019; 22:448-461. [PMID: 30716184 DOI: 10.1111/vop.12613] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/30/2017] [Revised: 07/24/2018] [Accepted: 08/02/2018] [Indexed: 11/27/2022]
Abstract
OBJECTIVE To compare the effects of topical 0.005% latanoprost (L) vs combined 0.005% latanoprost and 1% atropine (LA) on control of postoperative ocular hypertension (POH), development of posterior synechiae formation, pupil size, and blindness after phacoemulsification surgery in dogs. ANIMAL STUDIED Dogs with postoperative ocular hypertension were included in the study: L-group, latanoprost (eight dogs, 14 eyes) and LA-group, latanoprost and atropine (nine dogs, 15 eyes). PROCEDURES Complete ophthalmic examinations including tonometry were performed at 1, 7, and 21 days following phacoemulsification. RESULTS No significant differences were found between the measured intraocular pressure (IOP) at days 1 and 7 postphacoemulsification surgery in the L-group and the LA-group (P = 0.26 [14.12 ± 1.76 mmHg vs 16.96 ± 1.68 mmHg] and P = 0.71 [15.45 ± 1.43 mmHg vs 16.20 ± 1.36 mmHg], respectively). No significant differences were found between pupil sizes at day 7 for the two groups (P = 0.25 [13.83% vs 24.77%]). No significant differences were found between odds of posterior synechiae formation at day 21 (P = 0.92) with a probability ± SE for L-group vs LA-group at 0.27 ± 0.14 vs 0.25 ± 0.13. No significant differences were found in odds of postoperative blindness between groups (P = 0.58) with a probability ± SE of 0.21 ± 0.11 vs 0.13 ± 0.09, respectively for L and LA. CONCLUSIONS Combined topical latanoprost and atropine in dogs maintains normal postoperative IOPs but does not seem to cause increased mydriasis compared to latanoprost alone.
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Affiliation(s)
- Michala de Linde Henriksen
- Comparative Ophthalmology, Department of Clinical Sciences, College of Veterinary Medicine, Colorado State University, Fort Collins, Colorado
| | | | - Julia L Sharp
- Department of Statistics, College of Natural Sciences, Colorado State University, Fort Collins, Colorado
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Jugant S, Grillot AE, Lyarzhri F, Régnier A, Douet JY. Changes in pupil size and intraocular pressure after topical application of 0.5% tropicamide to the eyes of dogs sedated with butorphanol. Am J Vet Res 2019; 80:95-101. [DOI: 10.2460/ajvr.80.1.95] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/20/2022]
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13
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Effect of propofol and ketamine-diazepam on intraocular pressure in healthy premedicated dogs. Vet Anaesth Analg 2019; 46:36-42. [DOI: 10.1016/j.vaa.2018.09.043] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/12/2018] [Revised: 07/27/2018] [Accepted: 09/10/2018] [Indexed: 11/21/2022]
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Webb TR, Wyman M, Smith JA, Ueyama Y, Muir WW. Effects of propofol on intraocular pressure in premedicated and nonpremedicated dogs with and without glaucoma. J Am Vet Med Assoc 2018; 252:823-829. [PMID: 29553899 DOI: 10.2460/javma.252.7.823] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/20/2022]
Abstract
OBJECTIVE To establish a study cutoff for evidence of glaucoma on the basis of IOP measurements from a large population of healthy dogs and to assess the effects of IV propofol administration on IOPs in premedicated and nonpremedicated dogs with and without glaucoma defined by this method. DESIGN Prospective, descriptive study. ANIMALS 234 client-owned dogs. PROCEDURES IOPs measured in 113 healthy dogs (226 eyes) were used to calculate an IOP value indicative of glaucoma. The IOPs were measured in an additional 121 dogs (237 eyes) undergoing ophthalmic surgery. Midazolam-butorphanol was administered IV as preanesthetic medication to 15 and 87 dogs with and without glaucoma, respectively. A placebo (lactated Ringer solution) was administered IV to 8 and 11 dogs with and without glaucoma, respectively. Anesthesia of surgical patients was induced with propofol IV to effect. The IOPs and physiologic variables of interest were recorded before (baseline) and after preanesthetic medication or placebo administration and after propofol administration. RESULTS An IOP > 25 mm Hg was deemed indicative of glaucoma. Compared with baseline measurements, mean IOP was increased after propofol administration in nonpremedicated dogs without glaucoma and unchanged in nonpremedicated dogs with glaucoma. Propofol-associated increases in IOP were blunted in premedicated dogs without glaucoma; IOP in affected eyes of premedicated dogs with glaucoma was decreased after preanesthetic medication and after propofol administration. CONCLUSIONS AND CLINICAL RELEVANCE Results indicated that preexisting IOP influences the response to anesthetic drugs, and administration of preanesthetic medication with muscle-relaxing properties may blunt or reduce propofol-induced increases in IOP. Further research with a larger number of dogs is needed to confirm our results in dogs with glaucoma.
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Douet JY, Regnier A, Dongay A, Jugant S, Jourdan G, Concordet D. Effect of sedation with butorphanol on variables pertaining to the ophthalmic examination in dogs. Vet Ophthalmol 2018; 21:452-458. [DOI: 10.1111/vop.12530] [Citation(s) in RCA: 13] [Impact Index Per Article: 2.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/26/2022]
Affiliation(s)
- Jean-Yves Douet
- Département des Sciences Cliniques; Ecole Nationale Vétérinaire de Toulouse; Université Fédérale de Toulouse Midi-Pyrénées; 23 chemin des Capelles B.P. 87614 31076 Cedex 3 Toulouse France
| | - Alain Regnier
- Département des Sciences Cliniques; Ecole Nationale Vétérinaire de Toulouse; Université Fédérale de Toulouse Midi-Pyrénées; 23 chemin des Capelles B.P. 87614 31076 Cedex 3 Toulouse France
| | - Agnès Dongay
- Département des Sciences Cliniques; Ecole Nationale Vétérinaire de Toulouse; Université Fédérale de Toulouse Midi-Pyrénées; 23 chemin des Capelles B.P. 87614 31076 Cedex 3 Toulouse France
| | - Sophie Jugant
- Département des Sciences Cliniques; Ecole Nationale Vétérinaire de Toulouse; Université Fédérale de Toulouse Midi-Pyrénées; 23 chemin des Capelles B.P. 87614 31076 Cedex 3 Toulouse France
| | - Géraldine Jourdan
- Département des Sciences Cliniques; Ecole Nationale Vétérinaire de Toulouse; Université Fédérale de Toulouse Midi-Pyrénées; 23 chemin des Capelles B.P. 87614 31076 Cedex 3 Toulouse France
| | - Didier Concordet
- Département des Sciences Biologiques et Fonctionnelles; Ecole Nationale Vétérinaire de Toulouse; Université Fédérale de Toulouse Midi-Pyrénées; 23 chemin des Capelles B.P. 87614 31076 Cedex 3 Toulouse France
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Mayordomo-Febrer A, Rubio M, Martínez-Gassent M, López-Murcia MM. Effects of morphine-alfaxalone-midazolam premedication, alfaxalone induction and sevoflurane maintenance on intraocular pressure and tear production in dogs. Vet Rec 2017; 180:474. [DOI: 10.1136/vr.104040] [Citation(s) in RCA: 12] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Accepted: 12/12/2016] [Indexed: 11/04/2022]
Affiliation(s)
- A. Mayordomo-Febrer
- Departamento de Medicina y Cirugía Animal, Facultad de Veterinaria; Universidad CEU Cardenal Herrera; Alfara del Patriarca Valencia 46115 España
| | - M. Rubio
- Departamento de Medicina y Cirugía Animal, Facultad de Veterinaria; Universidad CEU Cardenal Herrera; Alfara del Patriarca Valencia 46115 España
- Garcia Cugat Foundation, CEU-UCH Chair of Medicine and Regenerative Surgery, Facultad de Veterinaria; Universidad CEU Cardenal Herrera; Alfara del Patriarca Valencia 46115 España
| | - M. Martínez-Gassent
- Departamento de Medicina y Cirugía Animal, Facultad de Veterinaria; Universidad CEU Cardenal Herrera; Alfara del Patriarca Valencia 46115 España
| | - M. M. López-Murcia
- Departamento de Medicina y Cirugía Animal, Facultad de Veterinaria; Universidad CEU Cardenal Herrera; Alfara del Patriarca Valencia 46115 España
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Gatson BJ, Pablo L, Plummer CE, Granone TD. Effects of premedication with sustained-release buprenorphine hydrochloride and anesthetic induction with ketamine hydrochloride or propofol in combination with diazepam on intraocular pressure in healthy sheep. Am J Vet Res 2015; 76:771-9. [DOI: 10.2460/ajvr.76.9.771] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/20/2022]
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Costa D, Leiva M, Moll X, Aguilar A, Peña T, Andaluz A. Alfaxalone versus propofol in dogs: a randomised trial to assess effects on peri-induction tear production, intraocular pressure and globe position. Vet Rec 2015; 176:73. [DOI: 10.1136/vr.102621] [Citation(s) in RCA: 15] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/04/2022]
Affiliation(s)
- Daniel Costa
- Departament de Medicina i Cirurgia Animals; Facultat de Veterinària; Universitat Autònoma de Barcelona; Bellaterra Barcelona 08193 Spain
| | - Marta Leiva
- Servei d'Oftalmologia de la Fundació Hospital Clínic Veterinari & Departament de Medicina i Cirurgia Animals; Facultat de Veterinària; Universitat Autònoma de Barcelona; Bellaterra Barcelona 08193 Spain
| | - Xavier Moll
- Departament de Medicina i Cirurgia Animals; Facultat de Veterinària; Universitat Autònoma de Barcelona; Bellaterra Barcelona 08193 Spain
| | - Adrià Aguilar
- Departament de Medicina i Cirurgia Animals; Facultat de Veterinària; Universitat Autònoma de Barcelona; Bellaterra Barcelona 08193 Spain
| | - Teresa Peña
- Servei d'Oftalmologia de la Fundació Hospital Clínic Veterinari & Departament de Medicina i Cirurgia Animals; Facultat de Veterinària; Universitat Autònoma de Barcelona; Bellaterra Barcelona 08193 Spain
| | - Anna Andaluz
- Departament de Medicina i Cirurgia Animals; Facultat de Veterinària; Universitat Autònoma de Barcelona; Bellaterra Barcelona 08193 Spain
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