Successful practice of electroacupuncture analgesia in equine surgery

Determination of the Minimum Infusion Rate of Alfaxalone Combined with Electroacupuncture in Goats

Simple Summary

Goats have been used as animal models in research and are increasingly kept as pets like dogs and cats. Total intravenous anesthesia (TIVA) is increasingly used in companion animals. Electroacupuncture (EA) has been proven to produce analgesia, therefore, the objective of this study was to investigate the effect of EA on alfaxalone-based TIVA in goats. In this current study, the minimum infusion rate (MIR) of alfaxalone was determined in a combination with EA. The findings found that EA reduces the alfaxalone MIR required to prevent purposeful movement of the extremities in response to standardized noxious. In conclusion, EA provided analgesia, reduced the MIR of alfaxalone-based IV anesthesia, and thereby alleviated the adverse cardiorespiratory effects associated with alfaxalone anesthesia in goats.

Abstract

Total intravenous anesthesia (TIVA) is increasingly used in companion animals. The effect of electroacupuncture (EA) on alfaxalone-based TIVA has not been previously reported in goats. Therefore, the objective of this study was to determine the minimum infusion rate (MIR) of alfaxalone required to prevent purposeful movement of the extremities in response to standardized noxious stimulation during its combination with EA in goats. Twelve clinically healthy goats weighing 18.5 ± 2 kg were randomly assigned to two groups (six goats/group). Alfaxalone alone (ALF group) and alfaxalone combined with EA (EA-ALF group). In the EA-ALF, alfaxalone was administered 30 min after EA stimulation. For induction of anesthesia, a bolus of alfaxalone was given at 3 mg/kg IV, and an infusion dose of 9.6 mg/kg/h was initially set for maintenance. The MIR of alfaxalone in both groups was determined by testing for responses to stimulation (clamping on a digit with Vulsellum forceps) at 10-min intervals after induction of anesthesia till the entire period of the experiment. Cardiopulmonary parameters and nociceptive threshold were measured throughout anesthesia. The median alfaxalone MIR was significantly lower in the EA-ALF group than the ALF group [9 (4.8–9.6) and 12 (11.4–18)], respectively; p = 0.0035). In the ALF group, goats anesthetized with MIR showed a significant increase in heart rate and cardiac output (p < 0.0001 and 0.0312, respectively), and decrease in respiratory rate (p < 0.0001), hemoglobin oxygen saturation (p = 0.0081), and rectal temperature (p = 0.0046) compared with those in the EA-ALF. Additionally, goats in the EA-ALF showed a higher nociceptive threshold than those in the ALF group (p < 0.0001). EA provided analgesia, reduced the MIR of alfaxalone-based IV anesthesia and thereby alleviated the adverse cardiorespiratory effects associated with alfaxalone anesthesia in goats.

Electroacupuncture anesthesia for laparotomy in goats

Background

The objective of the study to evaluate the effect of electroacupuncture during laparotomy in goats.

Aim

To study the abdominal anesthesia in goats by electroacupuncture using the physiological variables, vital parameters, hematological, biochemical, cortisol hormone, pain threshold, and wound healing for laparotomy in goats.

Methods

Fifteen healthy adult bucks were used to receive electroacupuncture in 10 newly selected acupoints. The data (M ± SD) were assessed at intervals (0 minutes) before induction (control group), (5 minutes), (10 minutes), (15 minutes), and (20 minutes) during induction, (30 minutes), (45 minutes), and (60 minutes) throughout surgery and (24 hours) after surgery, cortisol levels in serum at (0), (24 hours), and (72 hours) throughout laparotomy.

Results

The goats of the study showed improvement in the rates of eyelid closure, head, and neck relaxation, rumen motility, and tympany which were graded into mild (+), moderate (++), and severe (+++) degrees. The respiratory rates, body temperatures, and capillary fill times were not significantly different. The total mean of hematocrit was (19.9 ± 2.68), the total mean of hemoglobin was (9.9 ± 0.94), the total mean of red blood cells was (7.9 ± 0.8), the total mean of platelets was (244,861.3 ± 138,444.8) and the total mean of SPO2 was (70.5 ± 4.6). ALT and AST showed no significance. The significant mean cortisol level was (2.6 ± 2.01) and the significant mean pain threshold level was (0.02 ± 0.03). The results proved that electroacupuncture had a lot of significant parameters. The wound healing was improved by early epithelization and immature granulation tissue (at 7 days). Thick keratinized epithelization and collagen deposition in the dermal tissue with enhanced angiogenesis (at 14 days). Mild restoration of skin and the dermal tissue was well-organized (at 21 days). Besides, well-formed scar tissue covering a highly cellular organized dermal tissue (at 28 days).

Conclusions

Electroacupuncture had been considered a powerful anesthetic for abdominal surgery in goats. Moreover, wound healing proved excellent and better healing.

Veterinary acutherapy in management of musculoskeletal disorders: An eye-opener to the developing countries' veterinarians

Traditional Chinese medicine practitioners believed that the maintenance of the health status of any individual or animal is by the harmonious flow of Chi (life force) along a pathway known as the meridian. Interruption or blockage of Chi brings about disorders, pain, and diseases. Acutherapy, therefore, aims at correcting the interruption or blockage of the harmonious flow of Chi along the meridian to restore the healthy condition of the body system. This correction could be accomplished by either acupuncture or acupressure, and are both collectively referred to as acutherapy. This form of therapy has been used in both humans and animals for several decades. It is, however, just gaining popularity in the treatment of humans and is still not yet in practice among veterinarians for animal patients in most developing countries like Nigeria. This review, therefore, is aimed at exposing veterinarians from the developing countries to the general application of acutherapy with emphasis on the musculoskeletal system and associated pain where it is most applied. It is highly recommended that the universities, where Veterinary Medicine is studied in developing countries, should endeavor to train their veterinary surgeons in this area and see to how acutherapy can be included in the curriculum.

Spotlight on acupuncture in laboratory animal medicine

Acupuncture has been practiced for thousands of years, although it is only in the past century that science has worked to unravel the mechanisms behind its use. Literature supporting the efficacious use of acupuncture to treat a variety of conditions has been and continues to be published, including the randomized controlled studies we all appreciate when practicing evidence-based medicine. The use of acupuncture in veterinary medicine has paralleled the trends observed in people, with an increasingly common use to remedy specific medical conditions. These conditions are commonly related to neurological dysfunction or orthopedic pain. Although pain relief is the most common use of acupuncture, numerous other conditions have been shown to improve with this therapy. Laboratory animals are also benefiting from acupuncture. Its use is starting to be incorporated into research settings, although there is still further progress to be made in this field. Acupuncture has been shown to improve clinical conditions and quality of life in laboratory animals, and should be considered as a tool to treat laboratory animals with conditions known to benefit from therapy. Here we review the history, mechanisms of action, and use of acupuncture to treat veterinary patients and laboratory animals.

Pain Management in Horses

There has been great progress in the understanding of basic neurobiologic mechanisms of pain, but this body of knowledge has not yet translated into new and improved analgesics. Progress has been made regarding pain assessment in horses, but more work is needed until sensitive and accurate pain assessment tools are available for use in clinical practice. This review summarizes and updates the knowledge concerning the cornerstones of pain medicine (understand, assess, prevent, and treat). It highlights the importance of understanding pain mechanisms and expressions to enable a rational approach to pain assessment, prevention, and management in the equine patient.