RESUMEN
INTRODUCTION: Hypoglycemia is a common occurrence in diabetic patients. But unlike non diabetic patients, its causes are frequently related to drugs they are receiving to control blood glucose. But this may not always be the case. Here we report a type 2 diabetic patient with severe hypoglycemia owing to acute hypopituitarism secondary to pituitary apoplexy. CASE PRESENTATION: A 45 year old male diabetic patient from Ethiopia taking 2 mg of oral glimepiride daily who presented with change in mentation of 30 minutes and blood glucose recording of 38 mg/dl upon arrival to the emergency room. Brain magnetic resonance imaging showed pituitary macroadenoma with hemorrhage suggestive of pituitary apoplexy. Blood work up showed low adrenocorticotropic hormone, cortisol, and serum sodium levels. Subsequently transsphenoidal hypophysectomy was done. CONCLUSION: The occurrence of hypoglycemia in a diabetic patient taking sulphonylurea monotherapy is common. But when it is severe enough to cause altered mentation, patients should be approached differently. In the presence of clinical clues suggesting cortisol deficiency, hypopituitarism can be a possible cause.
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Diabetes Mellitus Tipo 2 , Hipoglucemia , Hipoglucemiantes , Hipopituitarismo , Apoplejia Hipofisaria , Compuestos de Sulfonilurea , Humanos , Masculino , Apoplejia Hipofisaria/complicaciones , Apoplejia Hipofisaria/diagnóstico por imagen , Hipoglucemia/etiología , Persona de Mediana Edad , Diabetes Mellitus Tipo 2/complicaciones , Compuestos de Sulfonilurea/uso terapéutico , Compuestos de Sulfonilurea/efectos adversos , Hipopituitarismo/complicaciones , Hipopituitarismo/diagnóstico , Hipoglucemiantes/uso terapéutico , Imagen por Resonancia Magnética , Neoplasias Hipofisarias/complicaciones , Neoplasias Hipofisarias/cirugía , Neoplasias Hipofisarias/diagnóstico por imagen , Hipofisectomía , Adenoma/complicaciones , Adenoma/cirugía , Adenoma/diagnóstico por imagen , Hidrocortisona/uso terapéutico , Hidrocortisona/sangre , Hidrocortisona/administración & dosificación , Glucemia/análisisRESUMEN
Cancer-related pain is a common and debilitating condition that can significantly affect the quality of life of patients. Opioids, NSAIDs, and antidepressants are among the first-line therapies, but their efficacy is limited or their use can be restricted due to serious side effects. Neuromodulation and lesioning techniques have also proven to be a valuable instrument for managing refractory pain. For patients who have exhausted all standard treatment options, hypophysectomy may be an effective alternative treatment. We conducted a comprehensive systematic review of the available literature on PubMed and Scielo databases on using hypophysectomy to treat refractory cancer-related pain. Data extraction from included studies included study design, treatment model, number of treated patients, sex, age, Karnofsky Performance Status (KPS) score, primary cancer site, lead time from diagnosis to treatment, alcohol injection volume, treatment data, and clinical outcomes. Statistical analysis was reported using counts (N, %) and means (range). The study included data from 735 patients from 24 papers treated with hypophysectomy for refractory cancer-related pain. 329 cancer-related pain patients were treated with NALP, 216 with TSS, 66 with RF, 55 with Y90 brachytherapy, 51 with Gamma Knife radiosurgery (GK), and 18 with cryoablation. The median age was 58.5 years. The average follow-up time was 8.97 months. Good pain relief was observed in 557 out of 735 patients, with complete pain relief in 108 out of 268 patients. Pain improvement onset was observed 24 h after TSS, a few days after NALP or cryoablation, and a few days to 4 weeks after GK. Complications varied among treatment modalities, with diabetes insipidus (DI) being the most common complication. Although mostly forgotten in modern neurosurgical practice, hypophysectomy is an attractive option for treating refractory cancer-related pain after failure of traditional therapies. Radiosurgery is a promising treatment modality due to its high success rate and reduced risk of complications.
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Dolor en Cáncer , Hipofisectomía , Humanos , Dolor en Cáncer/cirugía , Manejo del Dolor , Dolor Intratable/cirugía , Dolor Intratable/etiología , Calidad de Vida , Radiocirugia/métodos , Resultado del TratamientoRESUMEN
BACKGROUND: Utilizing endoscopes in surgery offers advantages and concerns, including potential nasal function impacts. Hyposmia following Transseptal Transsphenoidal hypophysectomy ranges from 0% to 2.2%. Debates persist about managing the M.T. in endoscopic sinus surgery due to its impact on nasal function. While preservation is recommended for sinonasal health, debates continue, as certain cases require resection. Our meta-analysis aims to compare turbinate resection and preservation effects on olfactory function. METHODS: We searched five electronic databases to collect all relevant studies. Records were screened for eligibility. Data were extracted from the included studies independently. Our continuous outcomes were pooled as standardized mean difference with 95% CI. Statistical analyses was done by RevMan. RESULTS: Our meta-analysis included four studies involving 235 patients (81 males). Evaluating changes in olfaction scores, two one-month studies (82 patients) revealed no significant difference between preservation and resection groups (Std.MD = 0.05[-0.39, 0.50], p = 0.81). For three-month assessments (146 patients), SNOT tests indicated no significant difference (Std.MD = 0.21, 95% CI[-0.11, 0.54], p = 0.20). Two studies used other tests on 70 patients at three months, yielding no significant difference (Std.MD = 0.13, 95% CI [-0.35, 0.62], p = 0.59). Two six-month studies (72 patients) similarly found no significant difference (Std.MD = 0.09, 95% CI [-0.39, 0.56], p = 0.72). CONCLUSION: Our meta-analysis involving 235 patients examined olfaction score changes over various time frames in trans-nasal trans-sphenoidal pituitary surgeries. No significant differences were observed between turbinate preservation and resection groups at one month, three months, or six months post-surgery.
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Cornetes Nasales , Humanos , Cornetes Nasales/cirugía , Endoscopía/métodos , Olfato/fisiología , Hipófisis/cirugía , Hipofisectomía/métodos , Hipofisectomía/efectos adversos , Neoplasias Hipofisarias/cirugíaRESUMEN
BACKGROUND: The trans-sphenoidal approach, commonly used for removing pituitary adenomas, has become a widely accepted and successful method. In recent years, the endoscopic trans-sphenoidal technique has emerged as a minimally invasive surgical approach for pituitary adenoma removal. The majority of pituitary adenomas exhibit a soft consistency and can be successfully extracted with aspiration and curettage using the trans-sphenoidal approach. However, a subset of around 5-15% of these adenomas possess a solid and fibrous texture. The occurrence of firm and fibrous adenomas is relatively common; unfortunately, there are no reliable predictors to identify them preoperatively. OBJECTIVES: The ability to forecast the reliability of magnetic resonance imaging (MRI) holds promise for improving prior preparation and impacts the extent of resection. DESIGN: A cross-sectional analysis of the investigation of magnetic resonance imaging (MRI) in relation to cancer histology was performed on 68 patients who had endoscopic trans-nasal excision for nonfunctional adenomas. MATERIALS AND METHODS: The determination of an intensity ratio was performed by employing quantitative estimates of MRI signal intensity obtained from both the adenoma and pons. During the surgical procedure, a series of sequential-graded procedures were used for the removal of tumours with varying consistencies. Softer tumours were addressed using the Suction technique (R1), while tumours of intermediate consistency were treated using curettes (R2). In order to evaluate the fibrotic content of firmer tumours, the utilization of Cavitron Ultrasound Surgical Aspirator (CUSA), and/or other micro-instruments (R3) was employed, with the histologic collagen fraction being quantified. In order to investigate and analyse the data, a statistical analysis was conducted. A predictive relationship between resection category and both intensity ratio, and collagen percentage was noted. The primary objective of this study was to determine the appropriate cutoff criteria for clinical utilization, as well as to investigate the association between intensity ratios and collagen percentage. RESULTS: Tumors with ratios ≤ 1.6 on the T2-weighted image and collagen content > 5.3% required more meticulous and sharp dissection for resection. CONCLUSIONS: The utilization of MRI analysis may offer some assistance, but not conclusive, in the prediction of tumour consistency.
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Adenoma , Neoplasias Hipofisarias , Humanos , Neoplasias Hipofisarias/diagnóstico por imagen , Neoplasias Hipofisarias/cirugía , Neoplasias Hipofisarias/patología , Hipofisectomía , Reproducibilidad de los Resultados , Estudios Transversales , Imagen por Resonancia Magnética/métodos , Colágeno , Adenoma/diagnóstico por imagen , Adenoma/cirugía , Adenoma/patología , Estudios Retrospectivos , Resultado del TratamientoRESUMEN
Pituitary-dependent hypersomatotropism is rarely diagnosed in dogs and surgical treatment is not reported. A 6-year-10-month male neutered Patterdale Terrier presented with polyuria, polydipsia, progressive pharyngeal stertor, excessive hair growth and widened facial features and paws. Serum insulin-like growth factor-1 concentration via radioimmunoassay was consistent with hypersomatotropism (1783 ng/mL). A pituitary mass was identified on magnetic resonance and computed tomography imaging. Six weeks later, glucosuria, starved hyperglycemia and serum fructosamine above the reference range (467.6 µmol/L, RI 177-314) were documented, consistent with diabetes mellitus. Transsphenoidal hypophysectomy was performed under general anesthesia without complications. Pituitary histopathology identified an acidophil neoplasm, with positive immunostaining for growth hormone. Postoperatively, there was rapid resolution of clinical, biochemical and morphologic changes of hypersomatotropism with persistence of diabetes mellitus. This case demonstrates successful resolution of hypersomatotropism with ongoing diabetes mellitus in a dog after surgical treatment by transsphenoidal hypophysectomy.
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Acromegalia , Adenoma , Diabetes Mellitus , Enfermedades de los Perros , Adenoma Hipofisario Secretor de Hormona del Crecimiento , Neoplasias Hipofisarias , Perros , Masculino , Animales , Adenoma Hipofisario Secretor de Hormona del Crecimiento/complicaciones , Adenoma Hipofisario Secretor de Hormona del Crecimiento/cirugía , Adenoma Hipofisario Secretor de Hormona del Crecimiento/veterinaria , Hipofisectomía/veterinaria , Hipofisectomía/métodos , Acromegalia/veterinaria , Neoplasias Hipofisarias/complicaciones , Neoplasias Hipofisarias/cirugía , Neoplasias Hipofisarias/veterinaria , Diabetes Mellitus/veterinaria , Adenoma/complicaciones , Adenoma/cirugía , Adenoma/veterinaria , Enfermedades de los Perros/cirugía , Enfermedades de los Perros/diagnósticoRESUMEN
Located at the base of the skull, the pituitary gland has a long and controversial history, not only in terms of its anatomy, but especially in the functions it performs and in the attempt to approach it surgically. Considered by Galen of Pergamon to have a role in releasing waste products of the brain, a theory accepted until the 17th century, the pituitary gland became a separate entity once with the anatomical descriptions of the famous Andreas Vesalius. At the beginning of the 18th century, researches of the time began to be more and more interested in this gland, trying to identify its functions, and at the same time correcting the traditional theories that were wrong or incomplete. Later, they turned their attention to experimental animal studies that represented the germinal nucleus for the transcranial and endoscopic pituitary surgery. In this review, an attempt has been made to record the entire history of anatomy, physiology and surgery of the pituitary gland, from antiquity to the current day's surgical techniques.
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Hipofisectomía , Hipófisis , Animales , Hipófisis/cirugía , Endoscopía , Cráneo , CabezaRESUMEN
OBJECTIVE: To characterize the clinical features, neurological examination findings, diagnostic imaging results, histopathological findings, and outcome following transsphenoidal hypophysectomy (TSH) in dogs with nonfunctional sellar masses (NFSM). STUDY DESIGN: Multi-institutional retrospective study. METHODS: Medical records of dogs that underwent TSH for a NFSM were reviewed for clinical signs, physical and neurological examination findings, diagnostic imaging results, endocrine testing, surgery reports, and outcome. Magnetic resonance (MR) imaging was rereviewed, and tumors were classified using the previously described system according to pituitary tumor extension and vascular involvement. Owners of dogs that survived to discharge were contacted. RESULTS: The majority of dogs presented for mentation change (12/15). The mean pituitary to brain ratio (P/B ratio) was 1.05 (0.6-1.4). Eight dogs had a tumor imaging classification of 5B. Eleven dogs were diagnosed with a nonfunctional pituitary adenoma (NFPA). Perioperative mortality was 33% (5/15). The median survival for all dogs was 232 days (0-1658). When dogs that did not survive to discharge were excluded, the median survival time was 708 days. Seven of 10 dogs that survived the perioperative period received adjunctive therapy. Owner assessment of outcome was excellent (6/7) to good (1/7). CONCLUSION: The common presenting complaint for dogs with large NFSM causing mass effect was mentation changes. Dogs with NFPA that survived to discharge and received adjunctive therapy had good to excellent outcomes. CLINICAL SIGNIFICANCE: Transsphenoidal debulking with adjunctive therapy can be considered for the treatment of NFSM causing clinical signs of mass effect in dogs. Successful long-term outcomes are possible.
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Enfermedades de los Perros , Neoplasias Hipofisarias , Perros , Animales , Hipofisectomía/veterinaria , Hipofisectomía/efectos adversos , Hipofisectomía/métodos , Estudios Retrospectivos , Enfermedades de los Perros/diagnóstico por imagen , Enfermedades de los Perros/cirugía , Hipófisis/patología , Hipófisis/cirugía , Neoplasias Hipofisarias/cirugía , Neoplasias Hipofisarias/veterinaria , Neoplasias Hipofisarias/patología , Tirotropina , Resultado del TratamientoRESUMEN
An 8.0-kg 8-year-old male dachshund was presented for surgical treatment of suspected pituitary-dependent hyperadrenocorticism with portal vein thrombosis. Advanced diagnostic imaging revealed a thrombus in the splenic and portal veins. For the portal vein thrombus, CT angiography showed an enhanced timing delay in the lateral right and caudate liver lobes. Blood tests showed a marked increase in the liver panel, including total bile acid. Brain MRI revealed a pituitary mass, suggesting pituitary-dependent hyperadrenocorticism. The mass was completely resected. The preoperative antithrombotic therapy of rivaroxaban (0.66 mg/kg, PO, once per day) and clopidogrel sulphate (1.66 mg/kg, PO, once per day) was continued postoperatively. Six months after resection of the pituitary mass, the thrombus had disappeared. Further studies are required to prove a causal association between the disappearance of the thrombus and the treatments provided.
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Hiperfunción de las Glándulas Suprarrenales , Enfermedades de los Perros , Trombosis , Masculino , Perros , Animales , Hipofisectomía/veterinaria , Hipofisectomía/efectos adversos , Hipofisectomía/métodos , Trombosis/diagnóstico por imagen , Trombosis/cirugía , Trombosis/veterinaria , Hígado , Vena Porta , Hiperfunción de las Glándulas Suprarrenales/cirugía , Hiperfunción de las Glándulas Suprarrenales/veterinaria , Enfermedades de los Perros/diagnóstico por imagen , Enfermedades de los Perros/tratamiento farmacológico , Enfermedades de los Perros/cirugíaRESUMEN
OBJECTIVES: Hypophysectomy is a method used in analgesia in patients with painful bone metastases. The pain relief after this procedure is not pathophysiologically fully understood. In only a few studies Leksell gamma knife (LGK) was used for radiosurgical hypophysectomy. In our study, we performed the LGK hypophysectomy in patients with intractable cancer-related pain due to bone metastases and evaluated the impact of this method on pain relief. METHODS: From 1994 to 2020 we enrolled 20 patients with the diagnosis of disseminated carcinoma. All patients underwent radiosurgical hypophysectomy on LGK. The maximum dose was 150-200Gy. The dose to the optic pathway was 9,8Gy on average. RESULTS: Six patients died before the first follow-up and we did not receive any posttreatment information from 4 patients. In all the rest 10 evaluated patients pain relief was achieved (0-50% of pre-procedural pain). The hypophysectomy effect lasted for the rest of their lives (the mean follow-up period was 12,6 months). In three patients we observed hormonal disbalance - hypocortisolism and diabetes insipidus with good response to substitutional therapy, one patient developed a temporary abducens nerve palsy. No other adverse events were observed. CONCLUSION: Our results suggest that the LGK hypophysectomy is an effective and safe procedure to reduce cancer-related intractable pain, especially in bone metastases of hormonally dependent tumors.
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Dolor en Cáncer , Neoplasias , Dolor Intratable , Radiocirugia , Humanos , Hipofisectomía/métodos , Dolor en Cáncer/etiología , Dolor en Cáncer/cirugía , Dolor Intratable/etiología , Dolor Intratable/cirugía , Radiocirugia/métodosRESUMEN
Introducción. Los adenomas gigantes de hipófisis (AGHs) son aquellos tumores con un diámetro máximo ≥4 cm en cualquier dirección, representando del 5% al 14% del total de los adenomas que se tratan quirúrgicamente. Su manejo terapéutico es desafiante ya que, debido a su extensión hacia otras estructuras cerebrales,está asociado a un riesgo mayor de complicaciones quirúrgicas, con una menor tasa de resección total. El objetivo de este trabajo fue evaluar el impacto de la cirugía endoscópica transesfenoidal en AGHs, analizando las variables asociadas a resultados visuales, endocrinológicos y según el grado de resección. Pacientes y Métodos. Se evaluó en 44 pacientes con AGHs(diámetro ≥4 cm y/o volumen ≥10 ml) la presentación visual, endocrinológica e imágenes. Se analizaron estadísticamente resultados visuales, endocrinológicos, grado de resección y complicaciones quirúrgicas. Resultados. Edad promedio de 48.8 años, 24 mujeres y 20 hombres. Presentación: déficit del campo visual (93.1%), hipopituitarismo (61.3%), cefalea (54.5%). Diámetro, volumen y extensión supraselar promedios: 4.8 cm, 20.3 ml, 1.8 cm, respectivamente. Campo visual: mejoría: 83.3%, sin cambios: 9.5%, mayormente en síntomas bilaterales (p<0.0001). Desmejoríavisual: 0%. En resección total: mayor posibilidad de mejoría visual (p=0.040). Buenos resultados endocrinológicos: 85.7%. Tasa de resección total: 52.3%. Resección subtotal: más frecuente con invasión del seno cavernoso (p=0.014). Sin diferencias en el grado de resección según diámetro, volumen, extensión supraselar, forma ni aspecto. Hipopituitarismo: 4.2%. Diabetes insípida: 9.5%, asociada a mayor diámetro (p=0.038) o extensión supraselar (p=0.010) y aspecto sólido (p=0.023). Fístula de LCR: 7.1%. Conclusión. La resección total puede lograrse en la mitad de los casos, siendo la limitante principal el grado de invasión del seno cavernoso y no el aspecto morfológico del AGH per se. Aun así, los resultados visuales y endocrinológicos son muy buenos. En resecciones incompletas se logra el control de la enfermedad mediante tratamientos complementarios
Introduction. Giant pituitary adenomas (sGAs) are those tumors with a maximum diame- ter ≥4 cm in any direction, representing 5% to 14% of all adenomas that are treated surgi- cally. Its therapeutic management is challenging since, due to its extension to other brain structures, it is associated with a higher risk of surgical complications, with a lower rate of total resection. Te objective of this work was to evaluate the impact of transsphenoidal endoscopic surgery on AGHs, analyzing the variables associated with visual and endocri- nological results and according to the degree of resection. Patients and Methods. Visual, endocrinological and imaging presentation were evaluated in 44 patients with sHAA (dia- meter ≥4 cm and/or volume ≥10 ml). Visual and endocrinological results, degree of resection and surgical complications were statistically analyzed. Results. Average age of 48.8 years, 24 women and 20 men. Presentation: visual field deficit (93.1%), hypopituitarism (61.3%), headache (54.5%). Average diameter, volume and suprasellar extension: 4.8 cm, 20.3 ml, 1.8 cm, respectively. Visual field: improvement: 83.3%, no changes: 9.5%, mostly in bilate- ral symptoms (p<0.0001). Visual impairment: 0%. In total resection: greater possibility of visual improvement (p=0.040). Good endocrinological results: 85.7%. Total resection rate: 52.3%. Subtotal resection: more frequent with invasion of the cavernous sinus (p=0.014). No differences in the degree of resection according to diameter, volume, suprasellar exten- sion, shape or appearance. Hypopituitarism: 4.2%. Diabetes insipidus: 9.5%, associated with greater diameter (p=0.038) or suprasellar extension (p=0.010) and solid appearance (p=0.023). CSF fistula: 7.1%. Conclusion. Total resection can be achieved in half of the cases, the main limitation being the degree of invasion of the cavernous sinus and not the morphological appearance of the HGA per se. Even so, the visual and endocrinological results are very good. In incomplete resections, disease control is achieved through com- plementary treatments
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Humanos , Hipófisis/patología , Complicaciones Posoperatorias , Adenoma/patología , Distribución de Chi-Cuadrado , Endoscopía/métodos , Evaluación Preoperatoria , Márgenes de Escisión , Hipofisectomía/métodosRESUMEN
BACKGROUND: In adult population, Growth Hormone Deficiency (GHD) is a complex clinical condition with heterogeneity of causes and duration. Growth Hormone (GH) replacement therapy has beneficial effects entailing a chronic and expensive use. Therefore, entity, appropriateness and standardization of GHD treatment need to be accurately analysed. In Italy, the epidemiological surveillance on somatropin therapy is entrusted to the National Register of Growth Hormone Therapy (Registro Nazionale degli Assuntori dell'Ormone della Crescita-RNAOC) by the Italian Regulation, in accordance of which the RNAOC-database is collecting the notifications of somatropin prescriptions. METHODS: Aim of this study is to analyse data on somatropin-treated adult population communicated to the RNAOC by the specialist centres of 15 Italian regions and 2 autonomous provinces. RESULTS: From 2011 to 2019, the somatropin-treated adults were 970 with 4061 examinations (1.21 ± 0.33 visits/year). The diagnoses were: hypopituitarism (n = 579); hypophysectomy (n = 383); and congenital GHD (n = 3). Five subjects were addressed with diagnoses not included in the regulation. The starting posology of somatropin was 0.320 (± 0.212) mg/day, 0.292 (± 0.167) mg/day in male and 0.360 (± 0.258) in female patients, with 7 administrations/week in 70.31% of the prescriptions. The differences in posology by gender persisted at 10th year of the follow-up. Starting dosage was higher in patients diagnosed with adult GHD before the age of 30 (0.420 ± 0.225 mg/day), with a progressive decrease of the dosage during the follow-up. CONCLUSIONS: This is the first report on adult GH treatment, describing numbers, diagnoses, and pharmaceutical prescriptions associated to somatropin therapy in a large cohort of Italian GHD-adults.
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Hormona de Crecimiento Humana/deficiencia , Hormona de Crecimiento Humana/uso terapéutico , Adolescente , Adulto , Anciano , Anciano de 80 o más Años , Femenino , Terapia de Reemplazo de Hormonas/métodos , Hormona de Crecimiento Humana/administración & dosificación , Humanos , Hipofisectomía , Hipopituitarismo/diagnóstico , Hipopituitarismo/tratamiento farmacológico , Italia , Masculino , Persona de Mediana Edad , Proteínas Recombinantes/uso terapéutico , Sistema de Registros , Adulto JovenRESUMEN
OBJECTIVE: To assess the accuracy of transsphenoidal hypophysectomy using 3-D printed patient-specific guides (3D-PSGs) in small-breed dogs. ANIMALS: Heads obtained from the cadavers of 19 small-breed dogs (ex vivo portion of study) and 3 healthy adult (3 to 4 years) purpose-bred Beagles with a median body weight of 9.2 kg. PROCEDURES: In the ex vivo study, CT images of the cadavers were collected. The position, width, and length of the pituitary fossa and the pilot hole (insertion angle and place) were measured. Using PSGs, 19 pilot holes were made for the pituitary gland fossa, and CT was performed to assess the position accuracy. In the in vivo study, 3 surgical windows from the pilot holes were made using PSGs. Repeated CT and MRI were performed to evaluate the safeness and effectiveness of PSGs, followed by necropsy. RESULTS: In the ex vivo study, the median (interquartile range) difference between the pre- and postoperative insertion angles was 2° (0° to 3.5°) and the median deviation of the pilot hole was 0.46 mm (0 to 1.58 mm). In the in vivo study, the surrounding structures were not damaged, and favorable outcomes were evident in terms of the shape, size, and position of the surgical window. CLINICAL RELEVANCE: 3D-PSGs provided a safe and effective surgical window for transsphenoidal hypophysectomy. Our findings emphasized the applicability of PSGs in brain surgery, in terms of accuracy and effectiveness.
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Enfermedades de los Perros , Hipofisectomía , Animales , Cadáver , Enfermedades de los Perros/diagnóstico por imagen , Enfermedades de los Perros/cirugía , Perros , Hipofisectomía/métodos , Hipofisectomía/veterinaria , Hipófisis/diagnóstico por imagen , Hipófisis/cirugía , Impresión TridimensionalRESUMEN
BACKGROUND: Electrolyte abnormalities, especially hypernatremia, are frequent complications after transsphenoidal hypophysectomy in dogs with pituitary-dependent hypercortisolism. OBJECTIVES: To describe electrolyte abnormalities after transsphenoidal hypophysectomy and to investigate possible associations between postoperative hypernatremia and clinical and surgical variables as well as with postoperative outcome. ANIMALS: One hundred and twenty-seven client-owned dogs. METHODS: Dogs with pituitary corticotroph adenomas that underwent transsphenoidal hypophysectomy were retrospectively included. Plasma sodium and potassium concentrations were measured -2, +2, +8, +24, and +48 hours from hypophysectomy. Clinical (breed, age, body weight, skull type, urinary cortisol/creatinine ratio, percentage of suppression to dexamethasone) and surgical variables (duration of anesthesia and surgery, pituitary dimensions) were compared to the development of hypernatremia. RESULTS: Postoperative hypernatremia developed in 46.5% (57/127) of dogs and hyponatremia in 6.3% (8/127). Plasma sodium concentration increased after surgery and peaked at 8 hours after surgery, normalizing after 24 to 48 hours. Plasma potassium concentration increased without exceeding the reference limit. No significant associations were found between clinical and surgical variables and hypernatremia, or between hypernatremia and postoperative death, long-term survival or recurrence. Surgery time was significantly longer in dogs that developed persistent diabetes insipidus (P = .02) and persistent diabetes insipidus occurred more frequently in dogs with enlarged pituitary glands (P = .01). CONCLUSION AND CLINICAL IMPORTANCE: Hypernatremia remains a frequent postoperative complication after transsphenoidal hypophysectomy but did not appear to have an impact on postoperative outcome. No predisposing factor to postoperative hypernatremia was identified. Variations in plasma potassium concentrations do not seem to influence postoperative outcome.
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Adenoma Hipofisario Secretor de ACTH , Adenoma , Enfermedades de los Perros , Adenoma Hipofisario Secretor de ACTH/veterinaria , Adenoma/cirugía , Adenoma/veterinaria , Animales , Enfermedades de los Perros/etiología , Enfermedades de los Perros/cirugía , Perros , Hipofisectomía/veterinaria , Recurrencia Local de Neoplasia/veterinaria , Complicaciones Posoperatorias/veterinaria , Potasio , Estudios Retrospectivos , SodioRESUMEN
OBJECTS: Cushing's disease (CD) is the most common cause of ACTH-dependent hypercortisolism in children age ≥ 7. The utility of bilateral inferior petrosal sinus sampling (BIPSS), an important test in adults, is less defined in children. We present a case series of children with ACTH-dependent hypercortisolemia and review the literature to assess the utility of BIPSS in the diagnosis and localization of CD. METHODS: We performed an IRB-approved chart review of patients aged ≤ 18 with ACTH-dependent hypercortisolism at MGH between 2000 and 2019 and collected clinical, laboratory, radiographic, BIPSS, surgical, and outcomes data. RESULTS: In our cohort (n = 21), BIPSS had a sensitivity of 93% and specificity of 100% for diagnosis of CD. Compared to surgery, successful BIPSS correctly predicted adenoma laterality in 69% of cases vs. 70% by MRI. Among patients with lesions ≥ 4 mm (n = 9), BIPSS correctly lateralized in 50% vs. 100% by MRI. In patients with subtle lesions (< 4 mm, n = 7), BIPSS correctly lateralized in 80% vs. 71% by MRI. In patients (n = 4) with CD and negative MRIs, BIPSS correctly lateralized in 75% cases. Surgical cure was achieved in 90% of patients and 95% of patients had long-term disease control. CONCLUSIONS: In our cohort (n = 21; n = 20 CD, n = 1 ectopic ACTH secretion), BIPSS was sensitive and specific for the diagnosis of CD. Compared to MRI, BIPSS was not additionally helpful for lateralization in patients with lesions ≥ 4 mm on MRI. BIPSS was helpful in guiding surgical exploration and achieving immediate postoperative remission among patients with subtle and negative MRI findings.
Asunto(s)
Hormona Adrenocorticotrópica/sangre , Hipofisectomía/métodos , Muestreo de Seno Petroso/métodos , Hipersecreción de la Hormona Adrenocorticotrópica Pituitaria (HACT) , Neoplasias Hipofisarias , Adolescente , Índice de Masa Corporal , Femenino , Humanos , Hidrocortisona/orina , Imagen por Resonancia Magnética/métodos , Masculino , Hipersecreción de la Hormona Adrenocorticotrópica Pituitaria (HACT)/sangre , Hipersecreción de la Hormona Adrenocorticotrópica Pituitaria (HACT)/diagnóstico , Hipersecreción de la Hormona Adrenocorticotrópica Pituitaria (HACT)/patología , Hipersecreción de la Hormona Adrenocorticotrópica Pituitaria (HACT)/cirugía , Neoplasias Hipofisarias/diagnóstico por imagen , Neoplasias Hipofisarias/patología , Neoplasias Hipofisarias/cirugía , Inducción de Remisión/métodos , Reproducibilidad de los Resultados , Tiempo , Resultado del TratamientoRESUMEN
PURPOSE: Dynamic testing represents the mainstay in the differential diagnosis of ACTH-dependent Cushing's syndrome. However, in case of undetectable or detectable lesion < 6 mm on MRI, bilateral inferior petrosal sinus sampling (BIPSS) is suggested by current guidelines. Aim of this study was to analyze the performance of CRH, desmopressin and high-dose dexamethasone suppression test (HDDST) in the differential diagnosis of ACTH-dependent Cushing's syndrome as well as the impact of invasive and noninvasive tests on surgical outcome in patients affected by Cushing's disease (CD). METHODS: Retrospective analysis on 148 patients with CD and 26 patients with ectopic ACTH syndrome. RESULTS: Among CD patients, negative MRI/lesion < 6 mm was detected in 97 patients (Group A); 29 had a 6-10 mm lesion (Group B) and 22 a macroadenoma (Group C). A positive response to CRH test, HDSST and desmopressin test was recorded in 89.4%, 91·4% and 70.1% of cases, respectively. Concordant positive response to both CRH/HDDST and CRH/desmopressin tests showed a positive predictive value of 100% for the diagnosis of CD. Among Group A patients with concordant CRH test and HDDST, no difference in surgical outcome was found between patients who performed BIPSS and those who did not (66.6% vs 70.4%, p = 0.78). CONCLUSIONS: CRH, desmopressin test and HDDST have high accuracy in the differential diagnosis of ACTH-dependent CS. In patients with microadenoma < 6 mm or non-visible lesion, a concordant positive response to noninvasive tests seems sufficient to diagnose CD, irrespective of MRI finding. In these patients, BIPSS should be reserved to discordant tests.
Asunto(s)
Hormona Adrenocorticotrópica/sangre , Síndrome de Cushing/diagnóstico , Imagen por Resonancia Magnética/métodos , Muestreo de Seno Petroso/métodos , Hipersecreción de la Hormona Adrenocorticotrópica Pituitaria (HACT) , Pruebas de Función Hipofisaria/métodos , Neoplasias Hipofisarias , Adulto , Síndrome de Cushing/epidemiología , Diagnóstico Diferencial , Técnicas de Diagnóstico Endocrino , Femenino , Humanos , Hipofisectomía/métodos , Hipofisectomía/estadística & datos numéricos , Italia/epidemiología , Masculino , Hipersecreción de la Hormona Adrenocorticotrópica Pituitaria (HACT)/sangre , Hipersecreción de la Hormona Adrenocorticotrópica Pituitaria (HACT)/diagnóstico , Hipersecreción de la Hormona Adrenocorticotrópica Pituitaria (HACT)/epidemiología , Hipersecreción de la Hormona Adrenocorticotrópica Pituitaria (HACT)/cirugía , Neoplasias Hipofisarias/diagnóstico por imagen , Neoplasias Hipofisarias/patología , Neoplasias Hipofisarias/cirugía , Estudios RetrospectivosRESUMEN
CONTEXT: Nationwide data on children diagnosed with craniopharyngioma (CP) are not available in Italy. OBJECTIVE: This work aimed to identify patients' characteristics, type of surgical approach, complications and recurrences, number of pituitary deficits, and number of patients starting growth hormone (GH) treatment. METHODS: A retrospective multicenter collection took place of 145 patients aged 0 to 18 years who underwent surgery for CP between 2000 and 2018, and followed up in 17 Italian centers of pediatric endocrinology. RESULTS: Age at diagnosis was 8.4 ± 4.1 years. Duration of symptoms was 10.8 ± 12.5 months and headache was most frequent (54%), followed by impaired growth (48%) and visual disturbances (44%). Most lesions were suprasellar (85%), and histology was adamantinomatous in all cases but two. Surgical approach was transcranial (TC) in 67.5% of cases and transsphenoidal (TS) in 31.%. The TC approach was prevalent in all age groups. Postsurgery complications occurred in 53% of cases, with water-electrolyte disturbances most frequent. Radiotherapy was used in 39% of cases. All patients but one presented with at least one hormone pituitary deficiency, with thyrotropin deficiency most frequent (98.3%), followed by adrenocorticotropin (96.8%), arginine vasopressin (91.1%), and GH (77.4%). Body mass index (BMI) significantly increased over time. A hypothalamic disturbance was present in 55% of cases. GH therapy was started during follow-up in 112 patients at a mean age of 10.6 years, and 54 developed a recurrence or regrowth of the residual lesion. CONCLUSION: CP is often diagnosed late in Italy, with TC more frequent than the TS surgical approach. Postsurgery complications were not rare, and hypopituitarism developed almost in all cases. BMI shows a tendency to increase overtime.
Asunto(s)
Craneofaringioma/terapia , Hormona de Crecimiento Humana/uso terapéutico , Hipopituitarismo/terapia , Neoplasias Hipofisarias/terapia , Complicaciones Posoperatorias/epidemiología , Edad de Inicio , Niño , Preescolar , Craneofaringioma/complicaciones , Craneofaringioma/diagnóstico , Craneofaringioma/patología , Femenino , Estudios de Seguimiento , Humanos , Hipofisectomía/efectos adversos , Hipopituitarismo/diagnóstico , Hipopituitarismo/etiología , Italia/epidemiología , Masculino , Neoplasia Residual , Hipófisis/patología , Hipófisis/cirugía , Neoplasias Hipofisarias/complicaciones , Neoplasias Hipofisarias/diagnóstico , Neoplasias Hipofisarias/patología , Complicaciones Posoperatorias/etiología , Recurrencia , Estudios Retrospectivos , Resultado del TratamientoRESUMEN
OBJECTIVE: Patients with Cushing's syndrome (CS) are at high risk of venous thromboembolism related to a hypercoagulability due to procoagulant imbalance. However, whether these alterations are reversible after disease remission is still unclear. The endogenous thrombin potential (ETP) measured with and without the addition of thrombomodulin provides a global representation of coagulation and previous data confirmed hypercoagulable profile in patients with active hypercortisolism. Aim of this study was to assess the short- and long-term modification of ETP in patients with CS after disease remission. DESIGN AND METHODS: Nineteen patients with CS for whom surgical remission was achieved, were prospectively evaluated for clinical characteristics, cortisol secretion profile and ETP at different time points: (i) before surgical intervention; (ii) after 6 months and (iii) 5 years from the time of persistent remission. Nineteen healthy subjects matched for age and gender were also evaluated as control group. RESULTS: Before surgery, patients showed higher ETP-ratio (with/without thrombomodulin) than controls (0.62 ± 0.09-vs-0.56 ± 0.09, p = 0.034). No significant correlation between ETP-ratio and cortisol secretion was found. 6 months after remission, ETP-ratio was still significantly increased compared to controls (0.64 ± 0.09-vs-0.56 ± 0.09, p = 0.01), but was similar to baseline (0.64 ± 0.09-vs-0.62 ± 0.09, p = 0.87). At 5 years, ETP-ratio showed a significant decrease (0.55 ± 0.14-vs-0.62 ± 0.09, p = 0.02) and was comparable to controls (0.55 ± 0.14-vs-0.56 ± 0.09, p = 0.7). CONCLUSIONS: Plasma hypercoagulability detected in patients with active hypercortisolism persists at short-term evaluation and seems to be completely reversible after long-term remission of disease. These data, as part of a whole evaluation of thrombotic risk, can contribute to make appropriate therapeutic choice in these patients.
Asunto(s)
Pruebas de Coagulación Sanguínea/métodos , Síndrome de Cushing , Hidrocortisona/sangre , Trombina/análisis , Trombofilia , Tromboembolia Venosa , Adrenalectomía/métodos , Adulto , Coagulación Sanguínea , Síndrome de Cushing/sangre , Síndrome de Cushing/complicaciones , Síndrome de Cushing/cirugía , Femenino , Humanos , Hipofisectomía/métodos , Masculino , Periodo Posoperatorio , Inducción de Remisión , Medición de Riesgo/métodos , Trombofilia/sangre , Trombofilia/etiología , Tiempo , Tromboembolia Venosa/sangre , Tromboembolia Venosa/etiología , Tromboembolia Venosa/prevención & controlRESUMEN
CONTEXT: Confirming a diagnosis of Cushing disease (CD) remains challenging, yet is critically important before recommending transsphenoidal surgery for adenoma resection. OBJECTIVE: To describe predictive performance of preoperative biochemical and imaging data relative to post-operative remission and clinical characteristics in patients with presumed CD. DESIGN, SETTING, PATIENTS, INTERVENTIONS: Patients (nâ =â 105; 86% female) who underwent surgery from 2007 through 2020 were classified into 3 groups: group A (nâ =â 84) pathology-proven ACTH adenoma; group B (nâ =â 6) pathology-unproven but with postoperative hypocortisolemia consistent with CD; and group C (nâ =â 15) pathology-unproven, without postoperative hypocortisolemia. Group A + B were combined as confirmed CD and group C as unconfirmed CD. MAIN OUTCOMES: Group A + B was compared with group C regarding predictive performance of preoperative 24-hour urinary free cortisol (UFC), late night salivary cortisol (LNSC), 1-mg dexamethasone suppression test (DST), plasma ACTH, and pituitary magnetic resonance imaging (MRI). RESULTS: All groups had a similar clinical phenotype. Compared with group C, group A + B had higher mean UFC (Pâ <â 0.001), LNSC (Pâ =â 0.003), DST (Pâ =â 0.06), and ACTH (Pâ =â 0.03) and larger MRI-defined lesions (Pâ <â 0.001). The highest accuracy thresholds were: UFC 72 µg/24 hours; LNSC 0.122 µg/dL, DST 2.70 µg/dL, and ACTH 39.1 pg/mL. Early (3-month) biochemical remission was achieved in 76/105 (72%) patients: 76/90(84%) and 0/15(0%) of group A + B vs group C, respectively, Pâ <â 0.0001. In group A + B, nonremission was strongly associated with adenoma cavernous sinus invasion. CONCLUSIONS: Use of strict biochemical thresholds may help avoid offering transsphenoidal surgery to presumed CD patients with equivocal data and improve surgical remission rates. Patients with Cushingoid phenotype but equivocal biochemical data warrant additional rigorous testing.