Antiemetic effect of oral maropitant treatment before the administration of brimonidine ophthalmic solution in healthy cats

Objectives The aim of this study was to investigate the antiemetic, behavioural and physiological effects of oral maropitant treatment before the administration of brimonidine ophthalmic solution in healthy cats. Methods Five cats received oral maropitant 8 mg or no treatment (control) 18 h before the administration of one drop of brimonidine solution in both eyes. Each cat was administered each of the two treatments, with a washout period of 1 week. The incidence of emesis, retching, sialorrhoea and lip-licking after brimonidine administration was recorded, while behavioural and physiological parameters, including heart rate, mean blood pressure, respiratory frequency and rectal temperature, were recorded before and 0, 30, 60, 90, 120, 180 and 240 mins after brimonidine administration. Results Emesis and retching were not observed when maropitant was administered. However, 4/5 cats exhibited vomiting and retching in the absence of maropitant pretreatment. The incidence of emesis and retching after brimonidine administration was significantly lower in the treatment group than in the control group. Sialorrhoea occurred in one cat in the control group, while all cats showed lip-licking after brimonidine administration. There were no significant differences in the incidence of sialorrhoea and lip-licking between the two groups. Although behaviour scores were comparable between the two groups, those obtained during heart rate, mean blood pressure and respiratory frequency measurements were significantly lower than the baseline scores; this indicated a sedative effect after brimonidine administration. The heart rate and mean blood pressure significantly decreased after brimonidine administration in both groups, while there were no intergroup differences in the heart rate, mean blood pressure, respiratory frequency and rectal temperature. Conclusions and relevance Oral maropitant treatment before the administration of brimonidine ophthalmic solution in cats can alleviate emesis and retching without affecting the sedative effects of brimonidine and important physiological parameters.

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EFFECTIVENESS OF INTRA OPERATIVE HAND HOLDING ON ANXIETY AND PHYSIOLOGICAL PARAMETERS AMONG PATIENTS UNDERGOING CATARACT SURGERY

Journal of Health and Allied Sciences NU ◽

10.1055/s-0040-1703760 ◽

2014 ◽

Vol 04 (02) ◽

pp. 027-033

Author(s):

Anuja B. S. ◽

Elsa Sanatombi Devi ◽

Leena Sequira ◽

Lavanya Rao ◽

Vijaya Pai H.

Keyword(s):

Blood Pressure ◽

Heart Rate ◽

Cataract Surgery ◽

Physiological Parameters ◽

Control Group ◽

Control Group Design ◽

Post Test ◽

Quasi Experimental ◽

Purposive Sample ◽

Experimental Group

Abstract: Introduction: Patients who are undergoing cataract surgery under local anaesthesia may be more stressed than those having general anaesthesia as they are awake during the surgical procedure. Therefore, psychological comfort in the preoperative phase and compliance during operation are very important for postoperative prognosis. This study explored the pre operative anxiety level of patients undergoing cataract surgery and the effectiveness of intra operative hand holding on anxiety and its related physiological parameters. Methods: A quasi experimental pre-test post-test control group design was used to collect data from a purposive sample of 54 patients who were underwent cataract surgery at Kasturba Hospital, Manipal. Results: Most of the patients in the experimental group perceived intra operative hand holding as a measure to reduce their anxiety even though there was no significant statistical difference in the immediate post operative anxiety score between the groups. It was also found that hand holding was effective in reducing blood pressure and heart rate except the respiratory rate of patients undergoing cataract surgery. Conclusion: The following conclusions were drawn on the basis of the findings of the present study that is, Intra operative hand holding was effective in reducing the physiological parameters such as heart rate, systolic blood pressure and diastolic blood pressure. Also most of the patients perceived intra operative hand holding as beneficial in relieving anxiety.

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Effects of Chlorpheniramine on Emergence Agitation After General Anesthesia for Ureteroscopic Stone Surgery: a Retrospective Cohort Study

10.21203/rs.3.rs-147927/v1 ◽

2021 ◽

Author(s):

Choon-Kyu Cho ◽

Minhye Chang ◽

Seok-Jin Lee ◽

Tae-Yun Sung ◽

Young Seok Jee

Keyword(s):

Blood Pressure ◽

Heart Rate ◽

Adverse Events ◽

General Anesthesia ◽

Urinary Catheter ◽

Postoperative Nausea And Vomiting ◽

Mean Blood Pressure ◽

Control Group ◽

Emergence Agitation ◽

Registration Number

Abstract Background: The presence of a urinary catheter, postoperative pain, and postoperative nausea and vomiting are risk factors for emergence agitation (EA). Antimuscarinic agents have been the primary agents used for urinary catheter-related bladder discomfort prevention and treatment. Chlorpheniramine has antimuscarinic, antinociceptive, and antiemetic effects. This retrospective study investigated the effect of chlorpheniramine on EA prevention in patients following ureteroscopic stone surgery. Methods: Of 110 adult patients who underwent ureteroscopic stone surgery under general anesthesia between January and December 2019, the medical records of 93 patients were analyzed retrospectively. The patients were divided into control (n = 52) and chlorpheniramine (n = 41) groups according to they receipt of intravenous chlorpheniramine before the induction of anesthesia. The incidence and severity of EA were compared between the groups as primary and secondary endpoints, respectively. The effects of chlorpheniramine on the requirement for inhalation anesthetic (desflurane) during surgery, changes in mean blood pressure and heart rate during emergence, and adverse events were also compared. Results: The incidence (21.2% in the control group, 24.4% in the chlorpheniramine group) and severity of EA did not differ between groups. The intraoperative requirement for desflurane, changes in mean blood pressure and heart rate during emergence, and adverse events were also similar between groups. Conclusion: Chlorpheniramine did not affect EA in patients after ureteroscopic stone surgery.Trial registration: CRiS Registration number KCT0004879. Initial registration date was 3 April 2020 (Retrospectively registered).

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Effects of chlorpheniramine on emergence agitation after general anesthesia for ureteroscopic stone surgery: a retrospective cohort study

Anesthesia and Pain Medicine ◽

10.17085/apm.21066 ◽

2021 ◽

Author(s):

Choon-Kyu Cho ◽

Minhye Chang ◽

Seok-Jin Lee ◽

Sung-Ae Cho ◽

Tae-Yun Sung

Keyword(s):

Blood Pressure ◽

Heart Rate ◽

Adverse Events ◽

General Anesthesia ◽

Urinary Catheter ◽

Postoperative Nausea And Vomiting ◽

Mean Blood Pressure ◽

Control Group ◽

Emergence Agitation ◽

Secondary Endpoints

Background: The presence of a urinary catheter, postoperative pain, and postoperative nausea and vomiting are risk factors for emergence agitation (EA). Antimuscarinic agents are primary agents used in the prevention and treatment of urinary catheter-related bladder discomfort. Chlorpheniramine has antimuscarinic, antinociceptive, and antiemetic effects. This retrospective study investigated the role of chlorpheniramine in EA prevention following ureteroscopic stone surgery.Methods: Of 110 adult patients who underwent ureteroscopic stone surgery under general anesthesia between January and December 2019, the medical records of 93 patients were analyzed retrospectively. The patients were divided into control (n = 52) and chlorpheniramine (n = 41) groups according to the receipt of intravenous chlorpheniramine before the induction of anesthesia. The incidence and severity of EA were compared between the groups as primary and secondary endpoints, respectively. The effects of chlorpheniramine on the requirement for inhalation anesthetic (desflurane) during surgery, changes in mean blood pressure and heart rate during emergence, and adverse events were also compared. Results: The incidence (21.2% in the control group, 24.4% in the chlorpheniramine group) and severity of EA did not differ between groups. The intraoperative requirement for desflurane, changes in mean blood pressure and heart rate during emergence, and adverse events were also similar between groups. Conclusion: Chlorpheniramine was not associated with a decrease in EA incidence or severity in patients who underwent ureteroscopic stone surgery.

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Investigation of the Effect of Operating Room Environment and Cesarean Section Orientation on Physiological Parameters (BP, heart rate, respiration) in Mothers of Candidate for Cesarean Section in Shiraz, a Clinical Trial Study

Current Women s Health Reviews ◽

10.2174/1573404817666210405145748 ◽

2021 ◽

Vol 17 ◽

Author(s):

Jamshid Eslami ◽

Neda Hatami ◽

Aazadeh Amiri ◽

Marzieh Akbarzadeh

Keyword(s):

Blood Pressure ◽

Clinical Trial ◽

Heart Rate ◽

Cesarean Section ◽

Pregnant Women ◽

Operating Room ◽

Intervention Group ◽

Physiological Parameters ◽

Control Group ◽

The Mean

Background: : Changes in physiological parameters in pregnant women are important factors in mothers who are candidates for cesarean section. Objective:: The aim of present study was to investigate the effect of operating room and cesarean section orientation on the physiological parameters (BP, heart rate, respiration) of pregnant women undergoing cesarean section. Materials and Methods:: This clinical trial study was performed on 80 pregnant women referring to cesarean section in hospitals affiliated to Shiraz University of Medical Sciences in 2019. The samples were randomly divided into two control (n = 40) and intervention groups (n = 40). The intervention group participated in 4 sessions of training classes. The control group used routine hospital trainings. The parameters were measured before and after the intervention in two groups. Data were analyzed using SPSS software (version 21), independent t-test and analysis of covariance. Results: The mean of post-training blood pressure in the intervention group 82.78(7.86) and in the control group 84.08 (7.44) was not statistically significant (p < .487). After intervention, the mean of heart rate in the intervention group 82.15 (8.10) and in the control group 83.43 (8.54) was statistically significant (p <0.0001). After intervention, the mean of respiratory rate in the intervention group was 94.28 (0.96) and in the control group was 75.96 (1.08) (P <0.0001). Conclusions: Although the patient's operating room and cesarean section orientation did not affect mothers' mean blood pressure; it reduced the mean of their heart rate and respiratory rate. It is important for medical staff to play an important role in identifying important strategies in managing the anxiety of pregnant women in order to improve their physiological indicators.

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The Effects of a Caffeine Placebo and Experimenter Expectation on Blood Pressure, Heart Rate, Well-Being, and Cognitive Performance

European Psychologist ◽

10.1027//1016-9040.6.1.15 ◽

2001 ◽

Vol 6 (1) ◽

pp. 15-25 ◽

Cited By ~ 18

Author(s):

Harald Walach ◽

Stefan Schmidt ◽

Yvonne-Michelle Bihr ◽

Susanne Wiesch

Keyword(s):

Blood Pressure ◽

Heart Rate ◽

Cognitive Task ◽

Well Being ◽

Control Group ◽

Double Blind ◽

Main Effect ◽

The Difference ◽

Being There ◽

To Receive

We studied the effect of experimenter expectations and different instructions in a balanced placebo design. 157 subjects were randomized into a 2 × 4 factorial design. Two experimenters were led to expect placebos either to produce physiological effects or not (pro- vs. antiplacebo). All subjects except a control group received a caffeine placebo. They were either made to expect coffee, no coffee, or were in a double-blind condition. Dependent measures were blood pressure, heart rate, well-being, and a cognitive task. There was one main effect on the instruction factor (p = 0.03) with the group “told no caffeine” reporting significantly better well-being. There was one main effect on the experimenter factor with subjects instructed by experimenter “proplacebo” having higher systolic blood pressure (p = 0.008). There was one interaction with subjects instructed by experimenter “proplacebo” to receive coffee doing worse in the cognitive task than the rest. Subjects instructed by experimenter “antiplacebo” were significantly less likely to believe the experimental instruction, and that mostly if they had been instructed to receive coffee. Contrary to the literature we could not show an effect of instruction, but there was an effect of experimenters. It is likely, however, that these experimenter effects were not due to experimental manipulations, but to the difference in personalities.

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The Predictive Role of Biochemical Plasma Factors in Patients with Severe Traumatic Brain Injuries

Revista de Chimie ◽

10.37358/rc.19.5.7209 ◽

2019 ◽

Vol 70 (5) ◽

pp. 1754-1757

Author(s):

Marius Toma Papacocea ◽

Ioana Anca Badarau ◽

Mugurel Radoi ◽

Ioana Raluca Papacocea

Keyword(s):

Blood Pressure ◽

Heart Rate ◽

Blood Cell ◽

Brain Injuries ◽

Hematological Parameters ◽

Group Versus ◽

Public Health Problem ◽

Traumatic Brain Injuries ◽

High Rate ◽

Control Group

Traumatic brain injuries (TBI) represent a high impact public health problem due to a high rate of death , long term disability and occurrence especially in young adults. Despite several promising animal studies, several parameters were proposed as biological markers and were assessed for this aim. Our study proposes the study of the early biochemical changes in association to hematological parameters for severe TBI patients prognosis. 43 patients with acute TBI were included in study based on clinical, laboratory and imagistic findings. The severity of the TBI was established by Glasgow Coma Scale GCS 3-8. In all patients were evaluated hematologic parameters (Red blood cell count - RBC, Hematocrit, blood Hemoglobin, White blood cell - WBC, Platelet count and biochemical parameters (glucose, urea, creatinine, electrolytes). Outcome was expressed as Glasgow Outcome Scale (GOS), between 1-5. Values were compared to control group -15 cases. Significant early differences in body temperature, heart rate, and systolic blood pressure were observed in TBI group versus control (p[0.05). After correlation, laboratory findings significantly associated to severe outcome - GOS = 1, 2 - (p[0.05) were plasma Na decrease and significant glucose increase. An early increase of temperature and decrease of Na may predict a severe outcome in patients with acute TBI; association with shifts in heart rate and blood pressure, imposes aggressive treatment measures.

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Blood pressure, heart rate, and adrenal catecholamines prior to ventricular fibrillation

American Journal of Physiology-Legacy Content ◽

10.1152/ajplegacy.1961.201.1.109 ◽

1961 ◽

Vol 201 (1) ◽

pp. 109-111 ◽

Cited By ~ 1

Author(s):

Noel M. Bass ◽

Vincent V. Glaviano

Keyword(s):

Blood Pressure ◽

Heart Rate ◽

Blood Flow ◽

Ventricular Fibrillation ◽

Coronary Occlusion ◽

Marked Decrease ◽

Mean Blood Pressure ◽

Plasma Adrenaline ◽

Acute Coronary Occlusion ◽

Before And After

Heart rate, mean blood pressure, adrenal blood flow, and adrenal plasma adrenaline and noradrenaline were compared before and after ligation of the anterior descending coronary artery in dogs anesthetized with chloralose. One group of 12 dogs responded to acute coronary occlusion with a sudden and marked decrease in mean blood pressure (mean, 31%) and heart rate (mean, 18%) followed by an early onset (mean, 227 sec) of ventricular fibrillation. Another group of nine dogs responded with slight decreases in mean blood pressure (mean, 13%) and heart rate (mean, 5%), during which time ventricular fibrillation occurred late (mean, 30 min) or not at all. While the two groups were statistically different in mean blood pressure and heart rate, the minute output of adrenal catecholamines in either group was not found to be related to the early or late occurrence of ventricular fibrillation.

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Effect of intravenous oxycodone on the physiologic responses to extubation following general anesthesia

BMC Anesthesiology ◽

10.1186/s12871-021-01350-5 ◽

2021 ◽

Vol 21 (1) ◽

Author(s):

Menglu Jiang ◽

Jiawei Ji ◽

Xin Li ◽

Zhenqing Liu

Keyword(s):

Blood Pressure ◽

Heart Rate ◽

General Anesthesia ◽

Control Group ◽

Study Group ◽

Clinical Trial Registry ◽

Blood Oxygen Saturation ◽

Blood Concentrations ◽

Number Of Patients ◽

Blood Hormones

Abstract Background Endotracheal intubation and extubation may cause undesirable hemodynamic changes. Intravenous oxycodone has recently been introduced and used for relieving hemodynamic alterations in response to intubation, but there is insufficient information regarding its application in stabilizing hemodynamics during extubation in the patients emerging from general anesthesia. Methods One hundred patients, who had undergone assorted laparoscopic surgeries under general anesthesia, were randomly assigned to Control group (saline injection, 50 cases) and Study group (intravenous injection of 0.08 mg/kg oxycodone immediately after completion of the surgical procedure, 50 cases). Blood pressure, heart rate, blood oxygen saturation (SpO2) as well as blood concentrations of epinephrine, norepinephrine, and cortisol were recorded or measured immediately before extubation (T0), during extubation (T1), as well as one minute (T2), 5 min (T3), and 10 min after extubation (T4). In addition, coughing and restlessness, time of eye-opening, and duration from completing surgery to extubation as well as Ramsay Sedation Scale were analyzed. Results Blood pressure and heart rate as well as blood concentrations of epinephrine, norepinephrine, and cortisol were significantly higher in the Control group compared with the Study group at the time of extubation as well as 1, 5, and 10 min after extubation (P < 0.05). When the patients emerged from general anesthesia, 70 % of the Control group had cough, which was significantly higher than that of Study group (40 %, P < 0.05). Significantly higher number of patients manifested restlessness in the Control group before (40 %) and after extubation (20 %) compared with that in the Study group (20 and 2 %, respectively, P < 0.05). In addition, patients of Control group had lower Ramsay score at extubation (1.7 ± 0.7) as well as 30 min after extubation (2.4 ± 0.9) compared to that of the patients of Study group (2.2 ± 0.9, and 3.0 ± 0.8, respectively, P = 0.003 and 0.001). Conclusions Intravenous oxycodone attenuated alterations of hemodynamics and blood hormones associated with extubation during emergence from general anesthesia. Trial registration Chinese Clinical Trial Registry: ChiCTR2000040370 (registration date: 11-28-2020) “‘retrospectively registered”.

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Hypothalamic paraventricular nucleus is critical for renal vasoconstriction elicited by elevations in body temperature

AJP Renal Physiology ◽

10.1152/ajprenal.00488.2007 ◽

2008 ◽

Vol 294 (2) ◽

pp. F309-F315 ◽

Cited By ~ 12

Author(s):

Joo Lee Cham ◽

Emilio Badoer

Keyword(s):

Blood Pressure ◽

Heart Rate ◽

Blood Flow ◽

Renal Blood Flow ◽

Core Temperature ◽

Paraventricular Nucleus ◽

Hypothalamic Paraventricular Nucleus ◽

Body Core Temperature ◽

Control Group ◽

Body Core

Redistribution of blood from the viscera to the peripheral vasculature is the major cardiovascular response designed to restore thermoregulatory homeostasis after an elevation in body core temperature. In this study, we investigated the role of the hypothalamic paraventricular nucleus (PVN) in the reflex decrease in renal blood flow that is induced by hyperthermia, as this brain region is known to play a key role in renal function and may contribute to the central pathways underlying thermoregulatory responses. In anesthetized rats, blood pressure, heart rate, renal blood flow, and tail skin temperature were recorded in response to elevating body core temperature. In the control group, saline was microinjected bilaterally into the PVN; in the second group, muscimol (1 nmol in 100 nl per side) was microinjected to inhibit neuronal activity in the PVN; and in a third group, muscimol was microinjected outside the PVN. Compared with control, microinjection of muscimol into the PVN did not significantly affect the blood pressure or heart rate responses. However, the normal reflex reduction in renal blood flow observed in response to hyperthermia in the control group (∼70% from a resting level of 11.5 ml/min) was abolished by the microinjection of muscimol into the PVN (maximum reduction of 8% from a resting of 9.1 ml/min). This effect was specific to the PVN since microinjection of muscimol outside the PVN did not prevent the normal renal blood flow response. The data suggest that the PVN plays an essential role in the reflex decrease in renal blood flow elicited by hyperthermia.

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