Evaluation of postoperative residual analgesia of two solutions used for local anesthesia by tumescence in bitches who underwent a unilateral mastectomy / Avaliação da analgesia residual pós-operatória de duas soluções utilizadas para anestesia local por tumescência em cadelas submetidas à mastectomia unilateral

Background: Breast tumors are common and require surgical treatment. A mastectomy causes edema, inflammation, and moderate to severe pain; therefore, analgesics should be used efficiently during the trans and postoperative periods. Tumescence anesthesia has been studied in veterinary medicine; however, there is limited literature on the comparison of the constituents of the different solutions and the most suitable protocol. The objective of this study was to evaluate the residual postoperative analgesia of two solutions through the Melbourne, Modified Glasgow for dogs (EGM), and Visual Analogue (EVA) scales in bitches who underwent a unilateral mastectomy.Materials, Methods & Results: Twelve bitches, weighing between 5 and 15 kg and aged between 5 and 13 years old, were included in the study. To determine if the animals were medically fit to undergo the procedure, they were evaluated by clinical examination, laboratory testing (complete blood count, serum biochemistry [urea, creatinine and alanine aminotransferase/ALT], and imaging (thorax x-ray and abdominal ultrasonography). Patients were randomly divided into two groups. One group received a lidocaine-containing tumescent solution (GTL) that consisted of 210 mL of lactated Ringer’s solution (at a temperature between 8 and 12°C), 40 mL of 2% lidocaine hydrochloride without vasoconstrictor, and 0.5 mL of adrenaline (1 mg/mL). The other group received ropivacaine (GTR) with 233.3 mL of lactated Ringer’s solution (at the same temperature as the previous group’s), 16.7 mL of ropivacaine (7.5 mg/mL), and 0.5 mL of adrenaline (1 mg/mL). Both groups received a combination of acepromazine (0.04 mg/kg) and meperidine (2 mg/kg) as preanesthetic medication (MPA), followed by induction using propofol (to effect) and maintenance using isoflurane. The solutions were infused subcutaneously (SC) 5 min after stabilization of the anesthetic plane.[...]

Evaluation of postoperative residual analgesia of two solutions used for local anesthesia by tumescence in bitches who underwent a unilateral mastectomy / Avaliação da analgesia residual pós-operatória de duas soluções utilizadas para anestesia local por tumescência em cadelas submetidas à mastectomia unilateral

Background: Breast tumors are common and require surgical treatment. A mastectomy causes edema, inflammation, and moderate to severe pain; therefore, analgesics should be used efficiently during the trans and postoperative periods. Tumescence anesthesia has been studied in veterinary medicine; however, there is limited literature on the comparison of the constituents of the different solutions and the most suitable protocol. The objective of this study was to evaluate the residual postoperative analgesia of two solutions through the Melbourne, Modified Glasgow for dogs (EGM), and Visual Analogue (EVA) scales in bitches who underwent a unilateral mastectomy.Materials, Methods & Results: Twelve bitches, weighing between 5 and 15 kg and aged between 5 and 13 years old, were included in the study. To determine if the animals were medically fit to undergo the procedure, they were evaluated by clinical examination, laboratory testing (complete blood count, serum biochemistry [urea, creatinine and alanine aminotransferase/ALT], and imaging (thorax x-ray and abdominal ultrasonography). Patients were randomly divided into two groups. One group received a lidocaine-containing tumescent solution (GTL) that consisted of 210 mL of lactated Ringers solution (at a temperature between 8 and 12°C), 40 mL of 2% lidocaine hydrochloride without vasoconstrictor, and 0.5 mL of adrenaline (1 mg/mL). The other group received ropivacaine (GTR) with 233.3 mL of lactated Ringers solution (at the same temperature as the previous groups), 16.7 mL of ropivacaine (7.5 mg/mL), and 0.5 mL of adrenaline (1 mg/mL). Both groups received a combination of acepromazine (0.04 mg/kg) and meperidine (2 mg/kg) as preanesthetic medication (MPA), followed by induction using propofol (to effect) and maintenance using isoflurane. The solutions were infused subcutaneously (SC) 5 min after stabilization of the anesthetic plane.[...](AU)

Anestésicos locais em medicina veterinária / Local anesthetics in veterinary medicine

O avanço das técnicas de anestesia balanceada para promover anestesia e analgesia com maior segurança e eficácia, tanto para o paciente como para a equipe cirúrgica, vem ganhando cada vez mais espaço na medicina veterinária de animais de companhia. No entanto, o médico veterinário ainda possui pouca ou nenhuma informação sobre como utilizar os anestésicos locais e quais fármacos encontram-se disponíveis atualmente, limitando-se ao uso da lidocaína. O objetivo deste artigo de revisão é utilizar informações ao profissional atuante na medicina veterinária, sobre os agentes anestésicos locais, suas propriedades, particularidades e técnicas de administração(AU)

Advances in balanced anesthetic techniques to promote anesthesia and analgesia with major safety and efficacy, for the patient and surgical staff, hás made this modality grow, briging advantages in veterinary medicine of pets. The veterinarian however still has little information about local anesthetics and what drugs are useful today, limiting its use only to lidocaine. The objective of this review article is to improve recent information do the clinician about local anesthetics agents, its properties, particularities and administration techniques(AU)

Anestésicos locais em medicina veterinária / Local anesthetics in veterinary medicine

O avanço das técnicas de anestesia balanceada para promover anestesia e analgesia com maior segurança e eficácia, tanto para o paciente como para a equipe cirúrgica, vem ganhando cada vez mais espaço na medicina veterinária de animais de companhia. No entanto, o médico veterinário ainda possui pouca ou nenhuma informação sobre como utilizar os anestésicos locais e quais fármacos encontram-se disponíveis atualmente, limitando-se ao uso da lidocaína. O objetivo deste artigo de revisão é utilizar informações ao profissional atuante na medicina veterinária, sobre os agentes anestésicos locais, suas propriedades, particularidades e técnicas de administração

Advances in balanced anesthetic techniques to promote anesthesia and analgesia with major safety and efficacy, for the patient and surgical staff, hás made this modality grow, briging advantages in veterinary medicine of pets. The veterinarian however still has little information about local anesthetics and what drugs are useful today, limiting its use only to lidocaine. The objective of this review article is to improve recent information do the clinician about local anesthetics agents, its properties, particularities and administration techniques