Hyperadrenocorticism treatment of a dog with high dilution: case report

Hyperadrenocorticism is a common endocrinopathy in dogs, associated to an excessive production or administration of cortisol.Aims:Report the evolution of homeopathic treatment in spontaneous hyperadrenocorticism analyzing with basal and post-acth stimulation cortisol values of a yorkshire male dog with 10 years old, diagnosed from the suppression test with low dose of dexamethasone and stimulation with ACTH, as well as complementary tests.Methodology: Homeopathic treatment was chosen, based on the principle of similitude usingIgnatia amarabecause the patient presents repertorized mental symptoms such as separation anxiety syndrome, docility, annoyances and jealousy and also because it is efficient and less harmful. It was associated to cortisol biotherapy to inhibit cortisol production and adrenal biotherapy to control the response of excess of the cortisol producted by the gland. The exposed information is consented by the tutor.Results:The dog was in convencional treatment with trilostane but didn't response to the therapy, showing 5,41 µg/dL of basal result and 11,8 µg/dL of post-acth result and the symptoms were worst on 12/12/2021, presenting lethargic, panting, more evident alopecia and severe muscle weakness which the patient unable to stand. Therefore, the protocol was recommended for 3 months, included 3 globules ofIgnatia amara30cH orally, every 12 hours, 3 globules of cortisol biotherapy 30 cH and also of adrenal biotherapy 6 cH every 24 hours. On 03/28/2022 the basal and post-acth stimulation results was 3,71 µg/dL e 5,79 µg/dL respectively and the patient was more active, the skin was better and even with difficulty it was movingand having more independence.Conclusion: Homeopathic treatment with high dilution was effective, keeping the indices with the recommended range of post acth between 2.0 and 5.0, confirming an adequate therapeutic monitoring and symptomatic improvement.

Hormonas sexuales en la enfermedad crítica / Sexual hormones in critical disease

INTRODUCCIÓN. En el paciente crítico ha existido un conglomerado de situaciones dadas por alteración de las hormonas acorde al comportamiento del eje hipotalámi-co-hipofisario- gonadal, entender su rol es fundamental. OBJETIVO. Describir las alteraciones de las hormonas sexuales en el paciente críticamente enfermo desde un enfoque fisiológico y clínico. MATERIALES Y MÉTODOS. Estudio observacional, de revisión bibliográfica y análisis sistemático de 84 artículos científicos y selección de muestra de 27 en MedLine, The Cochrane Library Plus, LILACS y Web of Science; en español e inglés y variables: hormonas esteroides gonadales, enfermedad crítica, endocrinología, estrés, gónadas y disfunción, periodo 1998-2017. CONCLUSIÓN. Las alteraciones detectadas fueron un mecanismo para la producción de hormonas esteroideas hacia la síntesis predominante de cortisol y soportar el alto estrés meta-bólico de los pacientes. Las citocinas pro inflamatorias fueron importantes en éstos cambios. La polifarmacia fue un factor adicional poco ponderado de la alteración endocrina sexual.

INTRODUCTION. In the critical patient there has been a conglomerate of situations given by alteration of the hormones according to the behavior of the hypothalamic-pi-tuitary-gonadal axis, understanding their role is fundamental. OBJECTIVE. Describe the alterations of sex hormones in the critically ill patient from a physiological and clinical approach.MATERIALS AND METHODS.Observational, literature review and systematic analysis of 84 scientific articles and sample selection of 27 in MedLine, The Cochrane Library Plus, LILACS and Web of Science; in Spanish and English and variables: gonadal steroid hormones, critical illness, endocrinology, stress, gonads and dysfunction, period 1998-2017. CONCLUSION. The alterations detected were a mechanism for the production of steroid hormones towards the predominant syn-thesis of cortisol and withstand the high metabolic stress of the patients. Pro inflam-matory cytokines were important in these changes. Polypharmacy was an additional unweighted factor of sexual endocrine disruption.

Epidemiological, clinical, and laboratory aspects in a case series of canine hyperadrenocorticism: 115 cases (2010-2014) / Aspectos epidemiológicos, clínicos e laboratoriais em uma série de cães com hiperadrenocorticismo: 115 casos (2010-2014)

Diseases' clinical-epidemiological characterization assists in directing the diagnosis. The objective of this study was to describe epidemiological, clinical and laboratorial aspects of a case series of canine hyperadrenocorticism (HAC). One-hundred fifteen records of dogs diagnosed by the low dose dexamethasone suppression test and/or ACTH stimulation test were evaluated. Of the cases, 81.3% were HAC ACTH-dependent and 18.7% HAC ACTH-independent. Females were more affected, representing 69.3% of the cases. The mean age was 10.3±2.5 years and 64.9% were gonadectomized. Most of the patients were small size dogs, weighting less than 10kg (73.9%). The most frequent breeds were: Poodle (27%), Dachshund (17.4%), and Yorkshire Terrier (10.4%). The most frequent clinical manifestations were polyphagia (86%), polydipsia (82.6%), polyuria (80%), abdominal enlargement (82.6%), thin skin (79.1%), muscular weakness (78.3%) and panting (74.8%). However, eventually unusual HAC-associated signs would be present in some dogs in a more important way compared with the classic disease´s clinical signs. The CBC showed neutrophilia (66%), eosinopenia (58.3%) and lymphopenia (42.6%) as main hematological abnormalities. The most common findings in serum biochemistry were increased alkaline phosphatase activity (81.74%), increased ALT activity (62.6%), hypercholesterolemia (66%) and hypertriglyceridemia (54.7%). Urinalysis revealed hyposthenuria in 14.9% and isostenuria in 13.5%; besides proteinuria in 50% of the cases. Abdominal ultrasound showed bilateral adrenal hyperplasia (92.2%) with adrenal asymmetry in 20.8% of the cases, in addition to hepatomegaly (80.9%), biliary sludge (67.8%) and hepatic hyperechogenicity (47.8%). It was concluded that small size gonadectomized female dogs, mainly Poodles and Dachshunds, presented higher frequency in the population studied, and that the main changes observed in clinical and complementary tests were polyphagia, polyuria, polydipsia, abdominal enlargement, adrenal hyperplasia, increased phosphatase alkaline and hyperlipidemia. These results corroborated to a better disease characterization at Brazil. This work concluded that the population studied resembles the profile describe in European and North American epidemiologic studies, and that the HAC dog´s clinical picture looks similar worldwide.(AU)

A caracterização clínica-epidemiológica de doenças auxilia no direcionamento do diagnóstico. O objetivo deste trabalho foi descrever aspectos epidemiológicos, clínicos e laboratoriais de uma série de casos de hiperadrenocorticismo (HAC) canino. Foram avaliados 115 prontuários de cães diagnosticados pelo teste de supressão por baixa dose de dexametasona e/ou teste de estimulação com ACTH. Os casos de HAC ACTH-dependentes representaram 81,3% da população, e 18,7% foram ACTH-independentes. As fêmeas foram mais acometidas, representando 69,3% dos casos. A média de idade foi 10,3 ± 2,5 anos e 64,9% eram gonadectomizados. A maioria dos cães foi de porte pequeno, de até 10 kg (73,9%). As raças mais frequentes foram Poodle (27%), Dachshund (17,4%) e Yorkshire (10,4%). As manifestações clínicas mais relatadas foram polifagia (86%), polidipsia (82,6%), poliúria (80%), abdome pendular (82,6%), atrofia cutânea (79,1%), fraqueza muscular (78,3%) e dispneia (74,8%). Entretanto, eventualmente sinais clínicos pouco associados ao HAC se manifestaram de forma mais importante que os sinais clássicos da doença. O hemograma revelou neutrofilia (66%), eosinopenia (58,3%) e linfopenia (42,6%) como principais alterações hematológicas. Na bioquímica sérica foi observado aumento de fosfatase alcalina (81,74% dos casos), aumento da atividade da ALT (62,6%), hipercolesterolemia (66%) e hipertrigliceridemia (54,7%). A urinálise revelou hipostenúria em 14,9% e isostenúria em 13,5%; além de proteinúria em 50% dos casos. A ecografia abdominal evidenciou hiperplasia bilateral de adrenal (92,2%) com assimetria de adrenais em 20,8% dos casos, além de hepatomegalia (80,9%), lama biliar (67,8%) e hiperecogenicidade hepática (47,8%). Concluiu-se que fêmeas castradas de pequeno porte, principalmente das raças Poodles e Dachshunds, apresentaram maior frequência na população estudada e que as principais alterações observadas clínicas e nos exames complementares foram polifagia, poliúria, polidipsia, aumento abdominal, hiperplasia da adrenal, aumento de fosfatase alcalina e hiperlipidemia. Estes resultados corroboram para melhor caracterização da doença no Brasil. Este estudo concluiu que a população estudada se assemelha ao perfil populacional de cães com HAC descrito em estudos Europeus e Norte Americanos de forma que o perfil dos casos ao redor do globo parece similar.(AU)

Hiperadrenocorticismo atípico canino asociado a hipotireoidismo / Canine atypical hyperadrenocorticism associated with hypothyroidism

RESUMEN El hiperadrenocorticismo (HAC) es una de las endocrinopatías más frecuentes en caninos, producida por la síntesis excesiva de cortisol. El HAC atípico u oculto es un síndrome caracterizado por la presentación de alteraciones clínicas, bioquímicas e imagenológicas compatibles con hipercortisolismo, pero con resultados normales en las pruebas endocrinológicas utilizadas convencionalmente para diagnóstico de HAC. Sin embargo, estos pacientes presentan elevada concentración sérica de precursores u otras hormonas corticoadrenales. El presente estudio describe el caso de una canina hembra, Bichón Frisé de 8 años de edad, epiléptica y tratada con fenobarbital, presentando signos clínicos asociados a HAC, en la que el test de supresión con dexametasona a dosis bajas y de estimulación con ACTH arrojaron valores normales. La medición de esteroides adrenales, post estimulación con ACTH, mostró elevación anormal de estrógenos y progesterona, persistiendo esta última después de que la paciente fuera esterilizada. El tratamiento con trilostano permitió la disminución de los niveles de progesterona y la resolución parcial de los signos clínicos. Sin em bargo, la recuperación clínica en su totalidad sólo se obtuvo después del diagnóstico y tratamiento del hipotiroidismo concomitante. El desafio que representa el diagnóstico del HAC atípico resalta la importância de realizar y disponer de paneles que incluyan medición de hormonas esteroideas adrenales diferentes al cortisol, además de considerar la ocurrencia de otras enfermedades endocrinas metabólicas concomitantes.

ABSTRACT Hyperadrenocorticism (HAC) is one of the most common endocrinopathies in dogs, caused by excessive synthesis of cortisol. Atypical or occult HAC is a syndrome characterized by the presentation of clinical, biochemical, and imaging alterations compatible with hypercortisolism, but normal results in endocrine tests that are conventionally used for HAC diagnosis. However, these patients present high serum concentrations of precursors or other corticoadrenal hormones. The present study describes the case of an 8 years old female canine, Bichón Frisé, epileptic and treated with phenobarbital, presenting clinical signs associated with HAC, in which the low-dose dexamethasone suppression test and stimulation with ACTH resulted within normal values. The measurement of adrenal steroids, after ACTH stimulation, showed abnormal elevation of estrogen and progesterone, the latter persisting after the patient was spayed. Treatment with trilostane allowed the reduction of progesterone levels and the partial resolution of clinical signs. However, full clinical recovery was only achieved after the diagnosis and treatment of concomitant hypothyroidism. The challenge that represent the diagnosis of atypical HAC highlights the importance of performing and having availability of panels that include measurement of adrenal steroid hormones other than cortisol, as well as considering the occurrence of other concomitant endocrine metabolic diseases.

Ultrasonographic evaluation of skin thickness in small breed dogs with hyperadrenocorticism

The purpose of this study was to propose a standard for differentiation between normal dogs and patients with hyperadrenocorticism (HAC) by measuring skin thickness via ultrasonography in small breed dogs. Significant changes in skin thickness of patients treated with prednisolone (PDS) or patients with HAC treated with trilostane were evaluated. Skin thickness was retrospectively measured on three abdominal digital images obtained from small breed dogs weighing < 15 kg that underwent abdominal ultrasonography. Mean skin thickness of normal dogs was 1.03 ± 0.25 mm (mean ± SD). Both the HAC and PDS groups showed significantly thinner skin than that in the normal group. Seven of the 10 HAC patients treated with trilostane had increased skin thickness. The area under the curve value of 0.807 was based on the receiver operating characteristics (ROC) curve for differentiating normal dogs from HAC patients. Sensitivity was 76% and specificity was 73% when skin thickness was less than the 0.83 mm cutoff value. In conclusion, measurement of skin thickness in small breed dogs by using ultrasonography is likely to provide clinical information useful in differentiating HAC patients from normal dogs. However, exposure to PDS, trilostane, and other conditions may have a significant effect on skin thickness.

Lesões orais secundárias à leishmaniose visceral em um cão com hiperadrenocorticismo endógeno: relato de caso / Oral lesions secondary to visceral leishmaniasis in a dog with endogenous hyperadrenocorticism: case report

O objetivo do presente trabalho foi relatar um caso de leishmaniose visceral com apresentação mucosa em um cão com hiperadrenocorticismo. Um canino, macho, da raça Poodle, 11 anos de idade, foi atendido com histórico de disfagia, halitose e sialorreia. Ao exame físico, observou-se linfadenomegalia generalizada e alterações cutâneas, como rarefação pilosa, comedões, telangiectasia e atrofia cutânea. Além disso, o animal também apresentava formações orais localizadas na língua. Dos exames hematológicos e bioquímicos realizados, a única alteração encontrada foi elevação da fosfatase alcalina (1724u/L). O teste de supressão com a dexametasona em dose baixa foi executado para investigar hiperadrenocorticismo, tendo resultado positivo. Também foram realizados exames citológicos dos linfonodos, da medula óssea e das formações orais, tendo sido observada a presença de formas amastigotas de Leishmania sp. em todas as amostras. O animal foi submetido à biópsia incisional das formações orais, e a análise histopatológica demonstrou um quadro de inflamação granulomatosa com presença de grande quantidade de microrganismos morfologicamente compatíveis com formas amastigotas de Leishmania sp. no interior das células inflamatórias. Diante dos achados clínicos e dos exames complementares, diagnosticou-se um caso de leishmaniose com manifestação mucosa atípica, associado ao hiperadrenocorticismo, podendo essa endocrinopatia ter sido um fator predisponente para essa enfermidade infectocontagiosa.(AU)

The objective of the present study was to report a case of visceral leishmaniasis with mucosal presentation in a dog with hyperadrenocorticism. A canine, male, Poodle, 11 years old, was attended with a history of dysphagia, halitosis, and sialorreia. The physical examination revealed generalized lymphadenomegaly and cutaneous alterations such as hair loss, comedones, telangiectasia, and cutaneous atrophy. Futhermore, the animal also had localized oral formations on the tongue. From the hematological and biochemical tests performed, the only alteration was alkaline phosphatase elevation (1724u / L). The low dose dexamethasone suppression test was performed to investigate hyperadrenocorticism and found a positive result. In addition, cytological exams of lymph nodes, bone marrow and oral formations were also performed, and the presence of amastigote forms of Leishmania sp. were observed in all samples. The animal was submitted to incisional biopsy of the oral formations and the histopathological analysis showed a granulomatous inflammation with presence of large quantity of microorganisms morphologically compatible with amastigotes forms of Leishmania sp. within the inflammatory cells. Faced with clinical findings and complementary exams, a case of leishmaniasis with atypical mucosal manifestation, associated with hyperadrenocorticism, was diagnosed, and this endocrinopathy could have been a predisposing factor to this infectious-contagious disease.(AU)

Hipercortisolismo cíclico por adenoma hipofisario / Cyclic hypercortisolism due to pituitary adenoma

A case study of a 41 years old woman with cyclic hypercortisolism is explained. AT the beginning, its manegment was shrinking the tumor, however afterward she needs medical treatment during cycles. The fluctuating clinical and discrepant bioquemical findings make it hard to diagnose. A review of this rare disorder is explained.

Urine protein electrophoresis study in dogs with pituitary dependent hyperadrenocorticism during therapy with trilostane / Avaliação da proteína urinária por eletroforese em cães com hiperadrenocorticismo hipófise dependente durante a terapia com trilostano

Hyperadrenocorticism is one of the most common endocrine disorders in dogs. Regarding to the kidneys, chronic hypercortisolemia can cause damage to the glomerulus, and evolve into chronic kidney disease. This study evaluated nine normotensive dogs with pituitary dependent hyperadrenocorticism, before and after therapy with trilostane, during the follow-up period of six months, in order to investigate the development of pathological proteinuria by quantitative (urinary protein-to-creatinine ratio) and qualitative (urinary protein electrophoresis) methods, and also to monitor its intensity over the course of the disease and therapy. The main renal lesion detected in dogs with hyperadrenocorticism was in the tubular segment, evidenced by the prevalence of urinary protein bands of lower molecular weight, indicating the lack absorption of these proteins in the proximal segment of the nephron. Low molecular weight proteins persisted throughout the follow-up. Regarding the future of routine veterinary medical clinic in the care of patients with hyperadrenocorticism, the assessments of proteinuria determinations by the urinary protein-to-creatinin ratio and urinary protein electrophoresis, according to the results obtained in this study, can add more information about the renal damage in these animals, and contribute to the prognosis.(AU)

Hiperadrenocorticismo (HAC) é uma das doenças endócrinas mais comuns em cães. A hipercortisolemia crônica pode causar danos glomerulares, pelo aumento da taxa de filtração glomerular, podendo levar ao desenvolvimento de doença renal crônica. Este estudo avaliou nove cães normotensos com hiperadrenocorticismo hipófise-dependente, antes e após a terapia com trilostano, durante o período de acompanhamento de seis meses, a fim de investigar o desenvolvimento de proteinúria patológica por métodos quantitativo (relação proteína e creatinina urinária) e qualitativos (eletroforese de proteínas urinárias) e também para monitorar a sua intensidade ao longo do curso da doença e terapia. A principal lesão renal detectada em cães com HAC foi no segmento tubular, evidenciada pela prevalência de bandas de proteínas urinárias de peso molecular mais baixo, indicando a falta de absorção destas proteínas no segmento proximal do néfron. A proteinúria de baixo peso molecular persistiu durante todo o acompanhamento. Em relação ao futuro da rotina clínica médica veterinária no tratamento de cães com hiperadrenocorticismo, as avaliações de proteinúria pela relação proteína e creatinina urinária e eletroforese de proteínas urinárias, de acordo com os resultados obtidos neste estudo, podem adicionar mais informações sobre a lesão renal nestes animais e contribuir para o prognóstico.(AU)

Uso de baixa dose de ACTH sintético no teste de estimulação da função adrenal para o diagnóstico e controle do hiperadrenocorticismo canino: avaliação da eficácia diagnóstica / Use of low-dose of synthetic ACTH in the adrenal stimulation test for diagnosis and monitoring of canine hyperadrenocorticism: evaluation of diagnostic efficacy

O teste de estimulação com ACTH é o teste de escolha para realizar o controle dos valores de cortisol endógeno em pacientes sob tratamento para o hiperadrenocorticismo canino, podendo ser utilizado também para diagnosticar a doença. Os protocolos atuais utilizam doses que variam entre 5ug/kg a 250ug/animal por administração intravenosa ou intramuscular. Não se constatam estudos com doses menores que as de 5ug/kg em pacientes portadores de hiperadrenocorticismo. No presente estudo, foi testada a dose de 1ug/kg/IV; comparada à dose consagrada de 5ug/kg/IV, em grupos de animais suspeitos de HAC (HAC Diag), animais portadores de HAC e em tratamento (HAC Control) e animais sadios (Sadios). Na dose de 1ug/kg/IV, os valores basais de cortisol dos Sadios foram iguais à média 2,40ug/dL(+/-1,57ug/dL), dos HAC control foi de média 1,53ug/dL(+/-0,93,ug/dL) e dos HAC diag foi média 3,37ug/dL(+/-1,57ug/dL). Os valores pós-ACTH na dose de 1ug/kg foram de média 11,43ug/dL(+/-2,46ug/dL) para animais sadios, 2,67ug/dL(+/-1,39ug/dL) para o grupo HAC Control e média 16,56ug/dL(+/-7,62ug/dL) para o grupo HAC Diag. Os valores basais de cortisol na dose de 5ug/kg foram 0,89ug/dL(+/-0,23ug/dL) para o grupo HAC Control; média 3,08ug/dL(+/-1,99 ug/dL) para o grupo HAC Diag. Os valores pós-ACTH na dose de 5ug/kg foram de média 3,71ug/dL(+/-1,57ug/dL), para o grupo HAC control e média 22,52ug/dL (+/-8,75ug/dL) para o grupo HAC diag. Analisando-se os resultados obtidos, constatou-se que as doses 1 e 5ug/kg de ACTH sintético não diferem entre si, promovendo o mesmo tipo de variação nos valores de cortisol (ANOVA; p=0,225). Também, que a dose de 1ug/kg de ACTH foi igualmente eficaz na elevação dos níveis de cortisol nos três grupo testados (Sadios, HAC Control e HAC Diag; ANOVA, p<0,05). E, pelo teste de Dunn observamos que o grupo HAC control apresenta Δ-cortisol (delta =diferença entre cortisol após estimulo e o cortisol basal) significativamente menor que o dos grupos diagnóstico (p<0,05) e animais sadios (p<0,05). Concluiu-se que a dose de 1ug/kg de ACTH sintético pode ser utilizada com eficácia para a realização do teste de estimulação com ACTH.(AU)

ACTH stimulation is the gold standard test to monitor levels of endogen control of patients under treatment for canine hyperadrenocorticism and it may also be used to diagnose the disease. Current protocols use doses ranging from 5ug/kg to 250ug per animal by intravenous or intramuscular administration. There are no studies with doses inferior to 5ug/kg in adrenopatic patients. In the present investigation, the dose of 1ug/kg/IV was tested; compared with the recommended dose of d 5ug/kg/IV in groups of dogs under clinical suspicion of HAC (HAC Diag), animals under treatment for HAC (HAC Control) and healthy animals (Healthy). Under the dose of 1ug/kg/IV, average results for baseline cortisol values were equal to 2.40ug/dL(+/- 1.57ug/dL) for healthy, 1.53g/dL(+/-0.93ug/dL) for HAC Control and 3.37ug/dL(+/-1.57ug/dL) for HAC Diag. Post-ACTH values in the dose of 1ug/kg were average 11.43ug/dL(+/-2.46ug/dL) for healthy animals, 2.67ug/dL (+/-1.39ug/dL) for HAC Control and 16.56ug/dL(+/-7.62ug/dL) for HAC Diag group. Basal cortisol values at a dose of 5ug/kg were 0.89ug/dL (+/-0.23ug/dL) Control group for HAC; average 3.08ug/dL (+/-1.99ug/dL) for HAC Diag group. Baseline cortisol under the dose of 5ug/kg were average 3.71ug/dL(+/-1.57ug/dL) for HAC Control and 22.52g/dL(+/-8.75ug/dL) for HAC diag. Based on the present results, it was found that both doses of 1 and 5ug/kg of synthetic ACTH do not differ, providing the same kind of change in cortisol values (ANOVA, p=0.225). Also, the dose of 1ug/kg of ACTH was equally effective in raising levels of cortisol in the three groups tested (Healthy, HAC and HAC Control Diag; ANOVA, p<0.05). Through the Dunn test it was observed that HAC Control presented HAC-Δ cortisol (delta = difference between cortisol after stimulation and basal cortisol) significantly lower than HAC Diag (p<0.05) and healthy animals (p<0.05). Therefore the dose of 1ug/kg of synthetic ACTH can be effectively used to perform the ACTH stimulation test effectively.(AU)

Repetitive ultrasonographic assessment of adrenal size and shape changes: a clue for an asymptomatic sex hormone-secreting adenoma

Diagnosis of an adrenal tumor without typical clinical signs related to hyperadrenocorticism and elevated alkaline phosphatase is challenging. This report describes a sex hormone-secreting adrenal tumor in a 10-year-old castrated male Shih Tzu evaluated through repetitive ultrasonographic examination. An adrenocorticotropic hormone stimulation test revealed elevated concentrations of androstenedione and 17-hydroxyprogesterone but a normal cortisol concentration. A mass was surgically excised and adenoma was diagnosed histopathologically. In the present case, adrenal tumor was strongly suspected based on a gradual increase in adrenal size and a change from peanut shape to an irregular mass on repetitive ultrasonography. Repetitive ultrasonographic examination of the adrenal gland is recommended when an abnormal ultrasonographic appearance of adrenal gland is identified, even in an asymptomatic dog.

Adrenalectomy in dogs: retrospective study of 13 cases performed in Universidade Anhembi Morumbi Veterinary Hospital (2012-2015) / Adrenalectomia em cães: estudo retrospectivo de 13 casos realizados no hospital veterinário da Universidade Anhembi Morumbi (2012 a 2015)

Adrenalectomy is the most appropriate treatment for unilateral adrenal tumors. This study aimed at describing the epidemiological characteristics and perioperative behavior of canine patients submitted to adrenalectomy at Anhembi Morumbi Veterinary Hospital. Out of 13 dogs, eight were pure breeds and five were mixed breeds; 12 females, aged 9.5 ± 2.5 years old. Regarding the tumors, seven were located on the right and histopathological analysis revealed cortical adenoma in 11 and adenocarcinoma in only two dogs. Two cases had hypercortisolism recurrence associated with hyperplasia in the contralateral adrenal, as confirmed by ACTH stimulation test. The results of this study indicate that adrenalectomy is a safe procedure with few perioperative complications, despite the possibility of hypercortisolism recurrence.(AU)

Adrenalectomia é o tratamento mais indicado para neoplasias adrenais unilaterais. Objetivou-se descrever os aspectos epidemiológicos e o comportamento perioperatório em cães submetidos a adrenalectomia no Hospital Veterinário Anhembi Morumbi. Dos 13 casos, oito eram cães de raças puras e cinco eram SRD; 12 eram fêmeas e de idade de 9,5 ± 2,5 anos. Das massas adrenais, sete eram em lado direito. Os exames histopatológicos revelaram adenoma cortical em 11 cães e adenocarcinoma em dois. Dois casos recidivaram a condição de hipercortisolemia, associada à hiperplasia, na adrenal contralateral, confirmados pelo teste de estimulação por ACTH. Concluiu-se que a adrenalectomia é um procedimento seguro, com poucas complicações perioperatórias, ressalvando-se a possiblidade de recidiva do quadro de hipercortisolismo.(AU)

Long-term Results after CT-Guided Percutaneous Ethanol Ablation for the Treatment of Hyperfunctioning Adrenal Disorders

OBJECTIVES: To evaluate the safety and long-term efficacy of computed tomography-guided percutaneous ethanol ablation for benign primary and secondary hyperfunctioning adrenal disorders. METHOD: We retrospectively evaluated the long-term results of nine patients treated with computed tomography-guided percutaneous ethanol ablation: eight subjects who presented with primary adrenal disorders, such as pheochromocytoma, primary macronodular adrenal hyperplasia and aldosterone-producing adenoma, and one subject with Cushing disease refractory to conventional treatment. Eleven sessions were performed for the nine patients. The patient data were reviewed for the clinical outcome and procedure-related complications over ten years. RESULTS: Patients with aldosterone-producing adenoma had clinical improvement: symptoms recurred in one case 96 months after ethanol ablation, and the other patient was still in remission 110 months later. All patients with pheochromocytoma had clinical improvement but were eventually submitted to surgery for complete remission. No significant clinical improvement was seen in patients with hypercortisolism due to primary macronodular adrenal hyperplasia or Cushing disease. Major complications were seen in five of the eleven procedures and included cardiovascular instability and myocardial infarction. Minor complications attributed to sedation were seen in two patients. CONCLUSION: Computed tomography-guided ethanol ablation does not appear to be suitable for the long-term treatment of hyperfunctioning adrenal disorders and is not without risks.

Cardiocirculatory, biochemical and hemostatic evaluation of dogs with hyperadrenocorticism at diagnosis and after treatment

Hyperadrenocorticism (HAC) is a common endocrinopathy among dogs that causes multisystemic signs. This study was conducted to evaluate cardiocirculatory, biochemical, and hemostatic parameters in dogs with HAC at diagnosis, in addition to verifying whether abnormal parameters could be controlled by initial treatment with trilostane. Fifteen dogs with HAC were assessed by systolic blood pressure measurement, electrocardiography, Doppler echocardiography, serum concentration of troponin I, and biochemical and hemostatic profile at diagnosis and after trilostane therapy. Unlike biochemical parameters, hemostatic and cardiocirculatory parameters were not significantly influenced by the onset of treatment. The authors believe that clinical treatment with trilostane for 3 to 4 months might not be sufficient for the stabilization of cardiocirculatory abnormalities such as hypertension. Therefore, dogs with HAC must receive cardiocirculatory monitoring at diagnosis and during drug treatment.

Quantitative CT assessment of bone mineral density in dogs with hyperadrenocorticism

Canine hyperadrenocorticism (HAC) is one of the most common causes of general osteopenia. In this study, quantitative computed tomography (QCT) was used to compare the bone mineral densities (BMD) between 39 normal dogs and 8 dogs with HAC (6 pituitary-dependent hyperadrenocorticism [PDH]; pituitary dependent hyperadrenocorticism, 2 adrenal hyperadrenocorticism [ADH]; adrenal dependent hyperadrenocorticism) diagnosed through hormonal assay. A computed tomogaraphy scan of the 12th thoracic to 7th lumbar vertebra was performed and the region of interest was drawn in each trabecular and cortical bone. Mean Hounsfield unit values were converted to equivalent BMD with bone-density phantom by linear regression analysis. The converted mean trabecular BMDs were significantly lower than those of normal dogs. ADH dogs showed significantly lower BMDs at cortical bone than normal dogs. Mean trabecular BMDs of dogs with PDH using QCT were significantly lower than those of normal dogs, and both mean trabecular and cortical BMDs in dogs with ADH were significantly lower than those of normal dogs. Taken together, these findings indicate that QCT is useful to assess BMD in dogs with HAC.

Fecal microbiota analysis of obese dogs with underlying diseases: a pilot study / 대한수의학회지

Ten dogs were enrolled in this study: two healthy dogs, two obese dogs without other medical issues and six obese dogs with underlying diseases including pemphigus, chronic active hepatitis, hyperadrenocorticism, narcolepsy, otitis media and heartworm infection. Pyrosequencing of the 16S rRNA gene to explore the gut bacterial diversity revealed that distal gut bacterial communities of samples from patients with pemphigus, otitis media and narcolepsy consisted primarily of Firmicutes, while the major phylum of the distal gut bacterial communities in patients with chronic active hepatitis and hyperadrenocorticism was Fusobacteria. Proteobacteria were the dominant phylum in heartworm infected obese patients.

Use of insulin detemir in dogs with diabetes mellitus / 동물의과학연구지

Insulin detemir is a long-acting basal insulin analogue recently introduced in veterinary medicine for treatment of canine diabetes mellitus. As there are only limited studies in dogs, long-term evaluation of insulin detemir in veterinary medicine is required. In this study, we investigated trends in12-hour blood glucose concentration during hospitalization and evaluated initial and following doses of insulin detemir for several months in six diabetic dogs. The mean levels of blood glucose over 12-hour periods were between 113.5 to 327.2 mg/dL, and the average glucose nadir was 103 mg/dL in the six dogs. The dogs were treated with a mean dosage of 0.24 U/kg of insulin detemir, but hypoglycemia was observed in four of the dogs at the first monthly follow-up. Thus, insulin doses were adjusted according to the nadir levels of glucose observed during the follow-up periods (range, 1 to 16 months). The total range of insulin doses throughout the study period was between 0.1 and 0.4 U/kg. Changes in insulin doses in each dog during the follow-up period were not variable. We suggest that insulin detemir might be not only an alternative choice against traditional insulin for patients with insulin resistance or concurrent disease but also an effective home therapy medication in canine patients with DM. This study could help inform veterinary practitioners regarding the use of insulin detemir for canine insulin-dependent DM.

Hipertensión de causa adrenal y embarazo / Hypertension of adrenal origin and pregnancy

La hipertensión arterial de causa adrenal asociada al embarazo es infrecuente. Su presencia genera una elevada morbilidad y mortalidad materna y fetal. Los cambios de la fisiología endocrina que acontecen en esta etapa, modifican el cuadro clínico y bioquímico de las enfermedades adrenales causantes de hipertensión. El objetivo de esta revisión es brindar información actualizada sobre el hipercortisolismo endógeno, el aldosteronismo primario y el feocromocitoma en la gestación -a los profesionales de la salud vinculados con la atención a embarazadas- que les permita diagnosticar y tratarlas temprana y adecuadamente mediante la aplicación del método clínico. Se revisa la literatura y se exponen los avances médicos en el tema(AU)

Blood hypertension of adrenal origin associated to pregnancy is unfrequent and generates high maternal and fetal morbidity and mortality. Changes in the endocrine physiology during this phase modify the clinical and biochemical picture of hypertension-causing adrenal diseases. The objective of this review was to provide health professionals in charge of pregnancy care with updated information on endogenous hypercortisolism, primary aldosteronism and pheochromocytoma in pregnancy. This will allow them to diagnose and treat this disorder early and adequately by means of the clinical method. Relevant literature was reviewed and the latest medical advances in this field were presented(AU)

Suspected pituitary gland double adenoma in a cat with insulin-resistant diabetes mellitus / 동물의과학연구지

A 10-year-old castrated male Korean shorthair cat weighing 4 kg was referred with signs of insulin-resistant diabetes mellitus based on clinical signs of polyuria, polydipsia, and polyphagia. Diagnosis of pituitary-dependent hyperadrenocorticism (PDH) was made based on results of an adrenocorticotropic hormone stimulation test and a dexamethasone screening test. In addition, plasma concentrations of insulin-like growth factor 1 (IGF-1) increased. Radiography, ultrasonography, and computed tomography (CT) revealed hepatomegaly, renomegaly, and adrenomegaly affecting both adrenal glands as well as multiple cysts in a generally enlarged pancreas. Magnetic resonance imaging (MRI) showed that the cat's pituitary gland was enlarged. The pituitary gland had a predominantly unilateral extension to the left. The signal intensity of the pituitary gland on precontrast T1 weighted images was hypointense compared to that of soft tissue and hyperintense compared to that of cerebrospinal fluid. On T2 weighted images, the pituitary gland was predominantly hypointense with a hyperintense rim. Contrast enhancement of the pituitary gland was not evident, and a mild degree of ring-like enhancement was seen. In addition, mild peritumoral edema was present. This is the first report of a cat with suspected double adenoma of the pituitary gland on the basis of compatible clinical signs, increased serum IGF-1 concentration, PDH, CT images, and MRI findings in diabetic cats with insulin resistance.