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1.
Article in Chinese | WPRIM | ID: wpr-939667

ABSTRACT

OBJECTIVES@#To study the effect of somatostatin on postoperative gastrointestinal function and stress level in children with acute abdomen.@*METHODS@#A total of 102 children with acute abdomen who underwent surgery in Xuzhou Children's Hospital from August 2019 to June 2021 were enrolled as subjects and were randomly divided into an observation group and a control group, with 51 children in each group. The children in the control group were given conventional treatment such as hemostasis and anti-infective therapy after surgery, and those in the observation group were given somatostatin in addition to conventional treatment. Peripheral blood samples were collected from both groups before surgery and on days 1 and 5 after surgery. The two groups were compared in terms of the serum levels of endothelin-1 (ET-1), adrenocorticotropic hormone (ACTH), cortisol, gastrin, and motilin, postoperative recovery, and the incidence rate of complications.@*RESULTS@#There was no significant difference in the serum levels of ET-1, ACTH, cortisol, gastrin, and motilin between the two groups before surgery (P>0.05). Compared with the control group, the observation group had significantly lower serum levels of ET-1, ACTH, and cortisol on days 1 and 5 after surgery (P<0.05) and significantly higher levels of motilin and gastrin on day 5 after surgery (P<0.05). Compared with the control group, the observation group had significantly shorter time to first passage of flatus, first bowel sounds, and first defecation after surgery, as well as a significantly shorter length of hospital stay (P<0.05). The incidence rate of complications in the observation group was significantly lower than that in the control group (6% vs 24%, P<0.05).@*CONCLUSIONS@#In children with acute abdomen, somatostatin can significantly reduce postoperative stress response, improve gastrointestinal function, and reduce the incidence rate of complications, thereby helping to achieve a good prognosis.


Subject(s)
Abdomen , Abdomen, Acute , Adrenocorticotropic Hormone , Child , Gastrins , Humans , Hydrocortisone , Motilin , Postoperative Complications , Prospective Studies , Somatostatin/therapeutic use
2.
Cambios rev. méd ; 20(1): 94-98, 30 junio 2021. ilus.
Article in Spanish | LILACS | ID: biblio-1292976

ABSTRACT

INTRODUCCIÓN. El quilotórax resulta de un daño al conducto torácico por ruptura, laceración, desgarro o compresión. Es una patología rara de derrame pleural en la edad pediátrica, pero frecuente como complicación posterior a cirugía cardiotorácica. La base del tratamiento conservador se ha fundamentado en: drenaje inicial, modificación de la dieta, uso de somatostatina o análogos sintéticos como octreotide, cirugía, prevención y manejo de complicaciones. Fue preciso describir la experiencia institucional clínica así como su abordaje. CASO CLÍNICO. Paciente masculino de 4 meses de edad, que ingresó a la Unidad Pediátrica Área de Emergencias del Hospital de Especialidades Carlos Andrade Marín, el 13 de septiembre de 2019 con antece-dente quirúrgico de atresia de esófago corregida en etapa neonatal. Acudió con dificultad respiratoria, radiografía de tórax que evidenció derrame pleural derecho, toracentesis diagnóstica con salida de líquido de aspecto turbio y lechoso; se colocó tubo de tórax derecho. Se prescribió ayuno inicial, nutrición parenteral durante 4 semanas hasta comprobar resolución del quilotórax. Fue dado de alta en condición estable tras 43 días de hospitalización. DISCUSIÓN. La evidencia científica registró que el tratamiento conservador del quilotórax se basó en: drenaje, reposo digestivo inicial, nutrición parenteral, modificación cualitativa de la dieta enteral y uso de octreotide; el mismo que fue aplicado al paciente de este caso clínico con evolución favorable. CONCLUSIÓN. El tratamiento conservador y multidisciplinario en el abordaje del qui-lotórax fue exitoso y no necesitó manejo quirúrgico.


INTRODUCTION. Chylothorax results from damage to the thoracic duct by rupture, la-ceration, tear or compression. It is a rare pathology of pleural effusion in pediatric age, but frequent as a complication after cardiothoracic surgery. The basis of conservative treatment has been based on: initial drainage, diet modification, use of somatostatin or synthetic analogues such as octreotide, surgery, prevention and management of complications. It was necessary to describe the clinical institutional experience as well as its approach. CLINICAL CASE. A 4-month-old male patient was admitted to the Emergency Area Pediatric Unit of the Carlos Andrade Marín Specialties Hospital on september 13, 2019 with a surgical history of esophageal atresia corrected in the neonatal stage. He went with respiratory distress, chest X-ray that showed right pleural effusion, diagnostic thoracentesis with outflow of cloudy and milky fluid; a right chest tube was placed. Initial fasting was prescribed, parenteral nutrition for 4 weeks until resolution of the chylothorax was verified. He was discharged in stable condition after 43 days of hospitalization. DISCUSSION. The scientific evidence recorded that the conservative treatment of chylothorax was based on: drainage, initial digestive rest, parenteral nutrition, qualitative modification of enteral diet and use of octreotide; the same that was applied to the patient of this clinical case with favorable evolu-tion. CONCLUSION. Conservative and multidisciplinary treatment in the approach to chylothorax was successful.


Subject(s)
Humans , Male , Infant , Thoracic Duct , Somatostatin , Chylothorax/surgery , Parenteral Nutrition , Pediatric Emergency Medicine , Intensive Care Units, Pediatric , Tracheoesophageal Fistula , Esophageal Atresia
3.
Rev. colomb. gastroenterol ; 36(supl.1): 78-84, abr. 2021. graf
Article in Spanish | LILACS | ID: biblio-1251552

ABSTRACT

Resumen Introducción: El mejor tratamiento para los tumores neuroendocrinos es la resección completa del tumor, los ganglios, e inclusive en casos seleccionados, las metástasis a distancia. En ocasiones, el tumor primario es pequeño y de difícil localización preoperatoria o sus recaídas pueden ser difíciles de localizar en el terreno de fibrosis por cirugías o tratamientos previos. La cirugía radioguíada ofrece una opción adicional de localización intraoperatoria que hasta ahora no ha sido muy utilizada en tumores neuroendocrinos. Presentación del caso: Paciente de 59 años con antecedente de resección atípica de duodeno y páncreas por tumor neuroendocrino grado 2 del duodeno un año antes. En la tomografía por emisión de positrones/tomografía computarizada (PET/CT) 68Ga-DOTANOC se encontró un ganglio con sobreexpresión de receptores de somatostatina en el mesenterio, sin otras lesiones a distancia. Por los antecedentes quirúrgicos y la dificultad de visualizar la lesión en las imágenes anatómicas (resonancia magnética [RM]) se decidió realizar la cirugía radioguíada. En el preoperatorio se administraron 15 mCi de tecnecio 99 metaestable-hidrazinonicotinilo-Tyr3-octreotida (99mTc-HYNIC-TOC) y se verificó la buena captación en el ganglio. En cirugía, luego de la disección inicial se utilizó la sonda gamma, que detectó una actividad 5 veces mayor en el ganglio, comparado con los tejidos vecinos, lo que permitió su localización y resección. La evolución fue adecuada y un año después no hay evidencia de recaídas. Conclusión: La cirugía radioguíada no ha sido muy utilizada en la localización intraoperatoria de tumores neuroendocrinos, pero es una buena alternativa en casos seleccionados, como el presentado en este artículo, y permite la detección intraoperatoria y su resección completa.


Abstract Introduction: The best treatment for neuroendocrine tumors is complete resection of the tumor, lymph nodes, and even distant metastases in selected cases. Sometimes, the primary tumor is small and difficult to detect before surgery, or its relapses may be difficult to locate in the fibrosis field due to previous surgeries or treatments. Although radioguided surgery allows for additional intraoperative localization, it has yet to be widely used in neuroendocrine tumors. Case report: A 59-year-old patient with a history of atypical resection of duodenum and pancreas due to grade 2 neuroendocrine tumor of the duodenum one year earlier. On 68Ga-DOTANOC PET/CT, a node with somatostatin receptor overexpression was found in the mesentery, with no other distant lesions. Due to the surgical history and the difficulty in visualizing the lesion on anatomical images (MRI), it was decided to perform the radioguided surgery. During the preoperative period, 15 mCi of 99mTc-HYNIC-TOC were administered verifying good uptake in the ganglion. Following the initial dissection, a gamma probe was used, detecting 5 times more activity in the ganglion than in adjacent tissues, allowing for localization and resection. The patient's progress was satisfactory, and one year later there is no evidence of relapse. Conclusion: Although radioguided surgery is not commonly used in the intraoperative location of neuroendocrine tumors, it is a viable option in some situations, such as the one presented here, because it allows for intraoperative detection and full resection.


Subject(s)
Humans , Male , Middle Aged , Somatostatin , Tomography, X-Ray Computed , Neuroendocrine Tumors , Positron-Emission Tomography , Prospecting Probe
4.
Acta Physiologica Sinica ; (6): 295-305, 2021.
Article in Chinese | WPRIM | ID: wpr-878258

ABSTRACT

Cortical GABAergic inhibitory neurons are composed of three major classes, each expressing parvalbumin (PV), somatostatin (SOM) and 5-hydroxytryptamine receptor 3A (Htr3a), respectively. Htr3a


Subject(s)
Animals , Interneurons/metabolism , Mice , Neurons/metabolism , Parvalbumins/metabolism , Receptors, Serotonin, 5-HT3/genetics , Serotonin , Somatostatin/metabolism
5.
Rev. colomb. reumatol ; 27(supl.2): 102-108, oct.-dic. 2020. graf
Article in Spanish | LILACS | ID: biblio-1341345

ABSTRACT

RESUMEN El diagnóstico del síndrome de Sjögren se basa en los criterios del consenso americano y europeo (AECG), sin embargo, en muchas oportunidades no se alcanza a detectar el compromiso glandular o extraglandular. Presentamos la evidencia de la utilidad de la gammagrafía con los análogos de somatostatina radiomarcados como prueba novedosa en el acercamiento diagnóstico al compromiso glandular y extraglandular del síndrome de Sjögren.


ABSTRACT Sjögren syndrome is diagnosed using American European Consensus Group (AECG) criteria, although frequently these criteria are not enough to detect the glandular and extra-glandular compromise. Evidence is presented on the use of whole body somatostatin scintigraphy as a novel probe in the diagnostic approach to the glandular and extra-glandular compromise in Sjögren s syndrome.


Subject(s)
Humans , Somatostatin , Sjogren's Syndrome , Diagnosis , Radionuclide Imaging , Consensus , Molecular Imaging
6.
National Journal of Andrology ; (12): 867-874, 2020.
Article in Chinese | WPRIM | ID: wpr-880284

ABSTRACT

Objective@#To explore the effects of the mu-opioid receptor (MOR) in the paraventricular nucleus (PVN) on the ejaculatory behaviors of male rats and its potential mechanisms.@*METHODS@#Male SD rats with normal ejaculation ability were mated with female ones in hormone-induced estrus. After bilateral PVN microinjection of D-Ala-2-Me-Phe-4-Gly-ol enkephalin (DAGO) or D-Phe-Cys-Tyr-D-Trp-Arg-Thr-Pen-Thr-NH2 (CTAP) with an inserted catheter, the male animals were observed for mount latency (ML), mount frequency (MF), intromission latency (IL), intromission frequency (IF), ejaculation latency (EL), ejaculation frequency (EF), post-ejaculation interval (PEI), and intromission ratio (IR). The lumbar sympathetic nerve activity (LSNA) of the rats was recorded using the PowerLab data acquisition hardware device, and the levels of norepinephrine (NE) in the peripheral plasma were measured by ELISA following microinjection of saline or different doses of DAGO or CTAP.@*RESULTS@#Neither CTAP nor DGAO significantly affected the ML of the male rats (P > 0.05). DGAO remarkably increased IF (P < 0.01) and MF (P < 0.01), prolonged IL (P < 0.01), EL (P < 0.01) and PEI (P < 0.01), and reduced EF (P <0.01) and IR (P < 0.05). On the contrary, CTAP markedly decreased IF (P < 0.01) and MF (P < 0.01), shortened IL (P < 0.01), EL (P < 0.01) and PFI (P < 0.01), and elevated EF (P < 0.01) and IR (P < 0.01). Additionally, DAGO decreased LSNA in a dose-dependent manner and reduced the NE level in the peripheral plasma. CTAP, however, not only offset the effects of DAGO on LSNA, but also significantly increased LSNA.@*CONCLUSIONS@#MOR in PVN inhibits ejaculatory behaviors in male rats by weakening LSNA, which has provided some theoretical evidence for the use of highly selective opioids in the treatment of premature ejaculation.


Subject(s)
Animals , Ejaculation , Enkephalin, Ala(2)-MePhe(4)-Gly(5)-/pharmacology , Female , Male , Paraventricular Hypothalamic Nucleus/physiology , Peptide Fragments/pharmacology , Rats , Rats, Sprague-Dawley , Receptors, Opioid, mu/physiology , Somatostatin/pharmacology , Sympathetic Nervous System/physiology
7.
Article in English | WPRIM | ID: wpr-816615

ABSTRACT

BACKGROUND: Acromegaly is a rare disease primarily caused by growth hormone (GH)-secreting pituitary adenomas, and its treatment is costly. Moreover, some patients are unresponsive to treatment. Hence, there are increasing efforts to develop new drugs with improved effectiveness for this disease. BIM23B065 is a novel chimeric molecule that acts on both somatostatin and dopamine receptors. This study aimed to investigate the effects of BIM23B065 compared with those of a somatostatin receptor analog and a dopamine agonist.METHODS: The effects of BIM23B065 on the proliferation, GH and insulin-like growth factor-1 (IGF-1) levels, and extracellular signal-regulated kinase (ERK) 1/2 and cyclic AMP response element binding (CREB) phosphorylation of GH3 cells were investigated with MTS assay, enzyme-linked immunosorbent assay, and Western blotting, respectively. The dosage and treatment duration of BIM23B065 were tested in animal models of GH-secreting pituitary adenoma. The effect of BIM23B065 (3 mg/kg/day) on changes in IGF-1 levels before and after treatment was further investigated.RESULTS: In vitro, BIM23B065 treatment decreased GH release in the culture media and downregulated ERK 1/2 and CREB phosphorylation to 22% and 26%, respectively. In vivo, IGF-1 expression decreased to 50 % after 4 weeks of treatment with BIM23B065 using an osmotic pump implant. Moreover, magnetic resonance imaging results showed that the tumor size decreased significantly following treatment with BIM23B065 for 4 weeks.CONCLUSION: The novel chimeric molecule was effective in decreasing IGF-1 and GH levels and may serve as an effective therapeutic agent for acromegaly.


Subject(s)
Acromegaly , Blotting, Western , Culture Media , Cyclic AMP , Dopamine Agonists , Dopamine , Enzyme-Linked Immunosorbent Assay , Growth Hormone , Growth Hormone-Secreting Pituitary Adenoma , Humans , In Vitro Techniques , Insulin-Like Growth Factor I , Magnetic Resonance Imaging , Models, Animal , Phosphorylation , Phosphotransferases , Pituitary Neoplasms , Rare Diseases , Receptors, Dopamine , Receptors, Somatostatin , Response Elements , Somatostatin
8.
Arch. endocrinol. metab. (Online) ; 63(6): 646-652, Nov.-Dec. 2019.
Article in English | LILACS | ID: biblio-1055016

ABSTRACT

ABSTRACT Advances in combination medical treatment have offer new perspectives for acromegaly patients with persistent disease activity despite receiving the available medical monotherapies. The outcomes of combination medical treatment may reflect both additive and synergistic effects. This review focuses on combination medical treatment and its current position in acromegaly, based on clinical studies evaluating the efficacy and safety of combined medical treatment(s) and our own experiences with combination therapy. Arch Endocrinol Metab. 2019;63(6):646-52


Subject(s)
Humans , Somatostatin/analogs & derivatives , Receptors, Somatostatin/administration & dosage , Receptors, Somatostatin/antagonists & inhibitors , Dopamine Agonists/administration & dosage , Human Growth Hormone/analogs & derivatives , Quality of Life , Acromegaly/drug therapy , Somatostatin/administration & dosage , Human Growth Hormone/administration & dosage , Drug Therapy, Combination
9.
Arch. endocrinol. metab. (Online) ; 63(4): 320-327, July-Aug. 2019. tab, graf
Article in English | LILACS | ID: biblio-1019363

ABSTRACT

ABSTRACT Objective To describe the long term safety and efficacy of pegvisomant (PEGV), and the predictors of treatment response in patients with acromegaly in the real life setting. Subjects and methods We retrospectively reviewed the clinical, hormonal and radiological data of acromegalic patients treated with PEGV in 17 Argentine centers. Results Seventy-five patients (age range 22-77, 51 females) with acromegaly have been treated with PEGV for up to 118 months (median 27 months). Before PEGV, 97.3% of patients had been treated with medical therapy, surgery and/or radiotherapy, two patients had no previous treatment. At that time, all patients had an IGF-1 above the upper normal limit (ULN) (mean 2.4 x ULN ± 0.98, range 1.25-7). At diagnosis of acromegaly 84% presented macroadenomas, prior to PEGV only 23,5% of patients remained with tumor remnant > 1 cm, the remaining showed normal or less than 1 cm images. Disease control (IGF-1 ≤ 1.2 x ULN) was achieved in 62.9% of patients with a mean dose of 11.8 mg/day. Thirty-four patients (45%) received PEGV monotherapy, while 41 (55%) received combined therapy with either somatostatin analogues and/or cabergoline. Adverse events related to PEGV were: local injection site reaction in 5.3%, elevated liver enzymes in 9.3%, and tumor size growth in 9.8%. Pre-PEGV IGF-I level was the only predictor of treatment response: 2.1 x ULN vs 2.8 x ULN in controlled and uncontrolled patients respectively (p < 0.001). Conclusion this long term experience indicates PEGV treatment was highly effective and safe in our series of Argentine patients with acromegaly refractory to standard therapies. Arch Endocrinol Metab. 2019;63(4):320-7


Subject(s)
Humans , Male , Female , Adult , Middle Aged , Aged , Young Adult , Acromegaly/drug therapy , Somatostatin/analogs & derivatives , Dopamine Agonists/therapeutic use , Human Growth Hormone/analogs & derivatives , Cabergoline/therapeutic use , Argentina , Insulin-Like Growth Factor I/analysis , Predictive Value of Tests , Retrospective Studies , Follow-Up Studies , Treatment Outcome , Dopamine Agonists/administration & dosage , Human Growth Hormone/administration & dosage , Human Growth Hormone/therapeutic use , Drug Therapy, Combination , Cabergoline/administration & dosage
10.
Article in Spanish | LILACS, BNUY, UY-BNMED | ID: biblio-1284104

ABSTRACT

Los estudios de medicina nuclear permiten en tumor neuroendocrino (TNE) de origen desconocido la búsqueda del tumor primario y estadificación de la enfermedad


Nuclear medicine studies allow neuroendocrine tumor (NET) of unknown origin to search for the primary tumor and staging the disease


Estudos de medicina nuclear permitem o tumor neuroendócrino (NET) de origem desconhecida para a pesquisa do tumor primário e o estadiamento da doença


Subject(s)
Humans , Female , Aged , Scalp/pathology , Somatostatin/analogs & derivatives , Carcinoma, Neuroendocrine/secondary , Carcinoma, Neuroendocrine/diagnostic imaging , Radionuclide Imaging
11.
Article in English | WPRIM | ID: wpr-739219

ABSTRACT

The Korean Endocrine Society (KES) published clinical practice guidelines for the treatment of acromegaly in 2011. Since then, the number of acromegaly cases, publications on studies addressing medical treatment of acromegaly, and demands for improvements in insurance coverage have been dramatically increasing. In 2017, the KES Committee of Health Insurance decided to publish a position statement regarding the use of somatostatin analogues in acromegaly. Accordingly, consensus opinions for the position statement were collected after intensive review of the relevant literature and discussions among experts affiliated with the KES, and the Korean Neuroendocrine Study Group. This position statement includes the characteristics, indications, dose, interval (including extended dose interval in case of lanreotide autogel), switching and preoperative use of somatostatin analogues in medical treatment of acromegaly. The recommended approach is based on the expert opinions in case of insufficient clinical evidence, and where discrepancies among the expert opinions were found, the experts voted to determine the recommended approach.


Subject(s)
Acromegaly , Consensus , Expert Testimony , Insurance Coverage , Insurance, Health , Octreotide , Somatostatin
12.
Article in Korean | WPRIM | ID: wpr-742151

ABSTRACT

Pancreatic neuroendocrine tumors (pNETs) are rare neoplasms arising from the pancreatic islet of Langerhans and can be functioning or non-functioning based on the clinical symptoms caused by hormonal secretions. PNETs are the second most common tumor of the pancreas and represent 1–2% of all pancreatic neoplasms. The incidence of pNETs appears to be rising and the prognosis seems to be improving, likely due to the improved treatment options. Recent updates of the World Health Organization classification and grading separate pNETs into 2 broad categories according to the histopathologic criteria, including the Ki-67 proliferative index and mitotic counts: well-differentiated NET and poorly-differentiated neuroendocrine carcinoma (NEC). The classification also incorporates a new subcategory of well-differentiated high-grade NEC (grade 3) to the well-differentiated NET category. This new classification algorithm aims to improve the prediction of the clinical outcomes and survival and help clinicians select better therapeutic strategies for patient care and management. The treatment of advanced or metastatic pNETs may include surgical resection, liver-directed therapies, and/or systemic treatments. In unresectable patients, the goals of these therapies are to palliate the tumor-related symptoms and prolong the lifespan. Systemic therapy consists of the following broad modalities: somatostatin analogues, molecular targeted therapy, systemic chemotherapy, and peptide receptor radionuclide therapy. In conclusion, pNETs are diagnosed increasingly throughout the world, usually with metastatic disease and requiring systemic therapy. Each patient should be evaluated thoroughly and discussed individually by a multidisciplinary and dedicated NET-expert team, which might consider all treatment options, including ongoing clinical trials before selecting the appropriate treatment sequence.


Subject(s)
Carcinoma, Neuroendocrine , Classification , Drug Therapy , Humans , Incidence , Islets of Langerhans , Molecular Targeted Therapy , Neuroectodermal Tumors, Primitive , Neuroendocrine Tumors , Pancreas , Pancreatic Neoplasms , Patient Care , Prognosis , Receptors, Peptide , Somatostatin , World Health Organization
13.
Korean Journal of Medicine ; : 485-494, 2019.
Article in Korean | WPRIM | ID: wpr-786308

ABSTRACT

Acromegaly is a chronic disorder caused by excessive growth hormone (GH) secretion. In most cases, the excess GH originates from GH-producing pituitary adenomas. Surgery is the preferred first-line treatment for patients with acromegaly, but medical management is considered when the disease persists after surgery or in cases where patients refuse surgery or are poor candidates for surgery. Somatostatin analogues are commonly used to treat acromegaly. The Korean Endocrine Society and the Korean Neuroendocrine Study Group have developed a position statement for the use of somatostatin analogues in the medical treatment of acromegaly. This position statement is based on evidence from the current literature and expert opinions. In the case of discrepancies among expert opinions, the experts voted to determine the recommended approach.


Subject(s)
Acromegaly , Expert Testimony , Growth Hormone , Humans , Octreotide , Pituitary Neoplasms , Somatostatin
14.
Arch. endocrinol. metab. (Online) ; 62(5): 560-565, Oct. 2018. tab, graf
Article in English | LILACS | ID: biblio-983797

ABSTRACT

SUMMARY Congenital hyperinsulinism (CHI) is a heterogenous disease caused by insulin secretion regulatory defects, being ABCC8/KCNJ11 the most commonly affected genes. Therapeutic options include diazoxide, somatostatin analogues and surgery, which is curative in focal CHI. We report the case of two siblings (born two years apart) that presented themselves with hypoketotic hyperinsulinemic persistent hypoglycemias during neonatal period. The diagnosis of diffuse CHI due to an ABCC8 compound mutation (c.3576delG and c.742C>T) was concluded. They did not benefit from diazoxide therapy (or pancreatectomy performed in patient number 1) yet responded to somatostatin analogues. Patient number 1 developed various neurological deficits (including epilepsy), however patient number 2 experienced an entirely normal neurodevelopment. We believe this case shows how previous knowledge of the firstborn sibling's disease contributed to a better and timelier medical care in patient number 2, which could potentially explain her better neurological outcome despite their same genotype.


Subject(s)
Humans , Male , Female , Infant, Newborn , Siblings , Congenital Hyperinsulinism/genetics , Congenital Hyperinsulinism/therapy , Sulfonylurea Receptors/genetics , Mutation/genetics , Pancreatectomy/methods , Phenotype , Somatostatin/analysis , Treatment Outcome , Diazoxide/therapeutic use , Genotype
15.
Acta méd. colomb ; 43(3): 161-164, jul.-set. 2018. graf
Article in Spanish | LILACS, COLNAL | ID: biblio-983699

ABSTRACT

Resumen Los tumores neuroendocrinos son neoplasias infrecuentes y de abordaje complejo. Actualmente se necesitan más ensayos clínicos aleatorizados para establecer el manejo óptimo de los pacientes afectados por metástasis hepáticas no resecables. Aportamos un caso de TNE metastásico en el que se indicó trasplante hepático por sintomatología derivada del síndrome carcinoide no controlable con el tratamiento médico habitual. (Acta Med Colomb 2018; 43: 161-164).


Abstract Neuroendocrine tumors are infrequent neoplasms with a complex approach. Currently, more randomized clinical trials are needed to establish the optimal management of patients affected by unresectable liver metastases. A case of metastatic NET in which hepatic transplantation was indicated due to symptoms derived from the carcinoid syndrome that cannot be controlled with the usual medical treatment is provided.


Subject(s)
Humans , Male , Adult , Carcinoid Tumor , Neurosecretory Systems , Somatostatin , Liver Transplantation , Neoplasm Metastasis
16.
Brasília; CONITEC; abr. 2018. graf, ilus, tab.
Non-conventional in Portuguese | LILACS, BRISA | ID: biblio-905575

ABSTRACT

CONTEXTO: Os tumores neuroendócrinos gastrintestinais e do pâncreas constituem um grupo heterogêneo de tumores com origem no sistema neuroendócrino difuso do trato gastrintestinal e de células neuroendócrinas ou pluripotentes do pâncreas. A maioria ocorre no jejuno, íleo, cólon e reto. As prevalências variam de 20 a 35 por 100.000, enquanto as incidências entre 2,5 a 5,25 por 100.000 pessoas/ano. A histopatologia tumoral, o tamanho e a extensão, comprometimento locorregional e presença de metástases hepáticas são fundamentais para o diagnóstico, prognóstico e para o planejamento da conduta terapêutica. Essas características influenciam na sobrevida global. Dessa forma, os tumores podem ser classificados em diferenciados de grau 1 (G1) e grau 2 (G2) ou pouco diferenciados de grau 3 (G3) e ainda nos estádios I a IV de acordo com comprometimento locorregional e presença de metástase. Os tumores mais diferenciados, em estádios menores e sem metástases hepáticas tem melhor prognóstico com maior sobrevida global. Esses tumores em função de suas características geralmente não são diagnosticados até que a doença envolva outros órgãos (dor e obstrução) ou na presença de metástases hepáticas, com prejuízo ao funcionamento desse órgão. A mediana da sobrevida global em indivíduos com tumores bem ou moderadamente diferenciados e com metástases distantes é de 33 meses. TECNOLOGIA: Acetato de Lanreotida. INDICAÇÃO: Tratamento de tumores neuroendócrinos gastroenteropancreáticos irressecáveis metastáticos. PERGUNTA: "Análogos de somatostatina são eficazes e seguros no tratamento de adultos diagnosticados com tumores neuroendócrinos gastroenteropancreáticos irressecáveis localmente avançados ou metastáticos ou ativos após a cirurgia?" EVIDÊNCIAS CIENTÍFICAS: Foi construída estratégia e conduzida busca estruturada. Recuperaramse 7 estudos clínicos e outros estudos de extensão e de análise de subgrupos. Os participantes tinham tumores neuroendócrinos irressecáveis localmente avançados ou metastáticos de graus 1 ou 2, com as lesões primárias localizadas principalmente no intestino médio e pâncreas e com metástases majoritariamente hepáticas. Em dois estudos com melhor qualidade metodológica compararam-se os análogos de somatostatina (AS) lanreotida e octreotida com placebo em participantes não tratados anteriormente. Não há estudos de comparação direta entre esses dois medicamentos. Pode-se observar um efeito de ambos os AS na sobrevida livre de progressão, de forma que a chance de progressão tumoral ou morte foi 68% menor, a qualquer tempo, no grupo que recebeu octreotida LAR em relação ao grupo que recebeu placebo (HR 0,32; IC 95% 0,19 a 0,55; P=0,000015) e 53% menor no grupo que recebeu lanreotida em comparação com placebo (HR 0,47; IC 95% 0,30 a 0,73). Em indivíduos com progressão da doença em uso de análogos de somatostatina há evidência de qualidade metodológica mais limitada de que a associação de octreotida e everolimo traga maior benefício na sobrevida livre de progressão que o uso de octreotida isolado. Não foram relatados casos de regressão tumoral e poucos com resposta parcial sendo o principal efeito dos medicamentos o de estabilização dos tumores avaliado por critérios radiológicos. Pela análise de evidência de baixa qualidade metodológica não se observa efeito desses medicamentos na sobrevida global dos participantes. AVALIAÇÃO ECONÔMICA: Foi elaborado estudo de custo-efetividade para comparar o uso de lanreotida de liberação prologada com a conduta expectante em modelo de Markov. Os desfechos avaliados foram sobrevida global e anos de vida ajustados pela qualidade em 6 e 30 anos. As razões incrementais de custo-efetividade foram de R$ 52.775,13 e R$ 40.478,00 por ano de vida ganho nos horizontes temporais de 6 e 30 anos, respectivamente. AVALIAÇÃO DE IMPACTO ORÇAMENTÁRIO: O demandante conduziu uma análise de impacto orçamentário na perspectiva do SUS projetando os gastos de uma possível incorporação de lanreotida de liberação prolongada (120 mg) para tratamento de tumores neuroendócrinos gastroenteropancreáticos no período de cinco anos em comparação com a conduta expectante. Utilizando-se o pressuposto de 100% de utilização do medicamento pelo sistema de saúde obteve-se como resultado impactos orçamentários incrementais de R$ 103,63 milhões no primeiro ano e de R$ 674,00 milhões como acumulado para os cinco anos. Aplicando-se taxas de difusão e pressupondo uma utilização gradual do medicamento obtêm-se impactos orçamentários incrementais de R$ 18,6 milhões para o primeiro ano e de R$ 252,00 milhões para os cinco anos. RECOMENDAÇÃO INICIAL DA CONITEC: Os membros do plenário da CONITEC decidiram na 62ª reunião ordinária da Comissão em 6 de dezembro de 2017, por unanimidade, não criar um novo procedimento específico para tratamento de tumores neuroendócrinos com lanreotida, entendendo que já existe procedimento no SUS para tratamento desses tumores. CONSULTA PÚBLICA: A consulta pública nº 02/2018 foi realizada entre os dias 18/01/2018 e 06/02/2018. Foram recebidas 75 contribuições, sendo 22 pelo formulário para contribuições técnico-científicas e 53 pelo formulário para contribuições sobre experiência ou opinião de pacientes, familiares, amigos ou cuidadores de pacientes, profissionais de saúde ou pessoas interessadas no tema. Após apreciação das contribuições encaminhadas pela consulta pública, o plenário da CONITEC entendeu que não houve argumentação suficiente para alterar a sua recomendação inicial pela não incorporação do medicamento. Propôs-se como possibilidade a revisão do procedimento (quimioterapia paliativa de apudoma/tumor neuroendócrino) para que se avalie a real necessidade de alteração do valor e das especificações frente aos novos tratamentos aprovados para os tumores neuroendócrinos irressecáveis. RECOMENDAÇÃO FINAL DA CONITEC: Os membros da CONITEC presentes na 64ª reunião ordinária, no dia 07 de março de 2018, deliberaram por unanimidade recomendar a não criação de procedimento quimioterápico específico para o uso da lanreotida para tratamento de tumores neuroendócrinos gastroenteropancreáticos. Foi assinado o Registro de Deliberação nº 336/2018 pela não incorporação da tecnologia. DECISÃO FINAL: O Secretário de Ciência, Tecnologia e Insumos Estratégicos do Ministério da Saúde, por meio da Portaria SCTIE/MS nº 16, de 27 de abril de 2018, publicada no DOU nº 82 de 30 de abril de 2018, Seção I, tornou pública a decisão de não criar procedimento quimioterápico específico para o uso do Acetato de Lanreotida para tratamento de tumores neuroendócrinos gastroenteropancreáticos.(AU)


Subject(s)
Humans , Neoplasm Metastasis , Neuroendocrine Tumors/drug therapy , Pancreatic Neoplasms/drug therapy , Somatostatin/analogs & derivatives , Somatostatin/therapeutic use , Brazil , Cost-Benefit Analysis/economics , Technology Assessment, Biomedical , Unified Health System
17.
Brasília; CONITEC; mar. 2018. ilus, ilus.
Non-conventional in Portuguese | LILACS, BRISA | ID: biblio-905577

ABSTRACT

CONTEXTO: A acromegalia é uma doença crônica, rara e debilitante, causada pela hipersecreção do hormônio do crescimento (GH), que leva a uma produção excessiva do fator de crescimento similar a insulina I (IGF-I), produzido pelo fígado. Resulta numa doença multissistêmica caracterizada por crescimento somático exagerado, comorbidades múltiplas, desfiguramento físico e redução de expectativa de vida. Os objetivos do tratamento são atenuar os sintomas da hipersecreção de GH, reduzir as comorbidades e o risco de mortalidade, preservando as funções normais da hipófise e melhorando a qualidade de vida destes pacientes, através da normalização dos níveis de GH e IGF-I. A adenoidectomia transesfenoidal permanece o tratamento primário da acromegalia e controla estes níveis em 50 a 75% dos pacientes, dependendo da morfologia do adenoma e da experiência do cirurgião. Para aqueles que permanecem com doença ativa após o tratamento cirúrgico, existe tratamento de segunda linha, com medicamentos e radioterapia. Os medicamentos disponíveis são os agonistas da dopamina, os análogos da somatostatina e o pegvisomanto. O pegvisomanto não é disponibilizado atualmente pelo SUS. TECNOLOGIA: Pegvisomanto (PEG-V). INDICAÇÃO: A acromegalia é uma doença crônica, rara e debilitante, causada pela hipersecreção do hormônio do crescimento (GH), que leva a uma produção excessiva do fator de crescimento similar a insulina I (IGF-I), produzido pelo fígado. Resulta numa doença multissistêmica caracterizada por crescimento somático exagerado, comorbidades múltiplas, desfiguramento físico e redução de expectativa de vida. PERGUNTA: O pegvisomanto é eficaz, seguro e custo-efetivo em pacientes com acromegalia refratária ao tratamento convencional? EVIDÊNCIAS CIENTÍFICAS: Os estudos disponíveis que avaliam o pegvisomanto são, em sua maioria, de baixa qualidade metodológica. Os principais desfechos localizados nos artigos foram os níveis de IGF-I e os desfechos clínicos apareceram nos estudos de forma secundária. O pegvisomanto foi eficaz nos estudos controlados quando se avaliaram como desfechos a redução dos níveis sanguíneos de IGF-I e o controle de alguns dos sinais e sintomas característicos da doença. Mesmo existindo estudos de longo prazo e com grande tamanho da amostra, as limitações metodológicas dos estudos trazem incertezas quanto aos benefícios do pegvisomanto na redução dos sinais e sintomas da doença. AVALIAÇÃO DE IMPACTO ORÇAMENTÁRIO: A estimativa de impacto orçamentário anual resultante da incorporação de pegvisomanto no SUS variou de aproximadamente 23 a 206 milhões, dependendo da dose de pegvisomanto utilizada. RECOMENDAÇÃO PRELIMINAR DA CONITEC: Os membros da CONITEC recomendaram por unanimidade a não incorporação no SUS do pegvisomanto para tratamento da acromegalia refratária ao tratamento convencional. CONSULTA PÚBLICA: O Relatório da CONITEC foi disponibilizado por meio da Consulta Pública nº 67/2017 entre os dias 29/11/2017 e 18/12/2017. Foram recebidas 14 contribuições, sendo 5 técnico-científicas e 9 de experiência ou opinião, das quais 7 foram excluídas por não tratar do tema em questão. Das 7 contribuições consideradas, 6 foram totalmente contra a recomendação da CONITEC e 1 foi totalmente a favor. Nas contribuições que foram contra a recomendação da CONITEC, os participantes argumentaram que o pegvisomanto é eficaz e seguro no tratamento de pacientes com acromegalia refratária ao tratamento convencional e fizeram críticas em relação ao impacto orçamentário, considerando-o superestimado. DELIBERAÇÃO FINAL: Os membros da CONITEC consideraram que não houve nenhuma informação nova sobre o tema que motivasse a mudança nas recomendações de não incorporação do pegvisomanto feitas em suas análises anteriores sobre o medicamento. Dessa forma, deliberaram por recomendar a não incorporação do pegvisomanto para acromegalia refratária ao tratamento estabelecido. DECISÃO: Não incorporar o pegvisomanto para acromegalia refratária ao tratamento estabelecido, no âmbito do Sistema Único de Saúde ­ SUS, dada pela Portaria nº 14, publicada no DOU nº 61, do dia 29 de março de 2018, seção 1, pág. 240.(AU)


Subject(s)
Humans , Acromegaly/drug therapy , Dopamine Agonists/administration & dosage , Human Growth Hormone/analogs & derivatives , Somatostatin/administration & dosage , Acromegaly/surgery , Brazil , Cost-Benefit Analysis , Technology Assessment, Biomedical , Unified Health System
18.
Article in English | WPRIM | ID: wpr-713273

ABSTRACT

PURPOSE: Posthepatectomy liver failure is a serious complication and considered to be caused by increased portal pressure and flow. Splanchnic vasoactive agents and propranolol are known to decrease portal pressure. The aim of this study was to identify optimal candidates with potential for clinical use among somatostatin, terlipressin, and propranolol using rats with 90% hepatectomy. METHODS: Rats were divided into 5 groups: sham operation (n = 6), control (n = 20), propranolol (n = 20), somatostatin (n = 20), and terlipressin group (n = 20). Seven-day survival rates and portal pressure change were measured, and biochemical, histologic, and molecular analyses were performed. RESULTS: Portal pressure was significantly decreased in all 3 treatment groups compared to control. All treatment groups showed a tendency of decreased liver injury markers, and somatostatin showed the most prominent effect at 24 hours postoperatively. Histologic liver injury at 24 hours was significantly decreased in propranolol and terlipressin groups (P = 0.016, respectively) and somatostatin group showed borderline significance (P = 0.056). Hepatocyte proliferation was significantly increased after 24 hours in all treatment groups. Median survival was significantly increased in terlipressin group compared to control group (P < 0.01). CONCLUSION: Terlipressin is considered as the best candidate, while somatostatin has good potential for clinical use, considering their effects on portal pressure and subsequent decrease in liver injury and increase in liver regeneration.


Subject(s)
Animals , Hepatectomy , Hepatocytes , Liver Failure , Liver Regeneration , Liver , Portal Pressure , Propranolol , Rats , Somatostatin , Survival Rate , Vasoconstrictor Agents
19.
Laboratory Animal Research ; : 223-231, 2018.
Article in English | WPRIM | ID: wpr-718845

ABSTRACT

Regulation of gastrointestinal hormones have been reported in animal models for constipation undergoing laxative therapy when administered herbal products. We undertook to investigate whether the laxative activity of gallotannin-enriched extracts isolated from Galla Rhois (GEGR) affects the regulation of gastrointestinal hormones, by examining the concentration of four hormones and the activation of their receptors in the loperamide (Lop)-induced constipation model. Stool parameters, including number, weight and water content, were significantly recovered in the Lop+GEGR treated group, relative to the Lop+vehicle treated group; however, food intake and water consumption were maintained at a constant level. Also, a similar recovery was detected for thickness of mucosa, muscle and flat luminal surface in the Lop+GEGR treated group. Furthermore, concentration of the four gastrointestinal hormones evaluated, namely, cholecystokinin (CCK), gastrin (GAS), somatostatin (SS) and motilin (MTL), were lower in the Lop+vehicle treated group than the No treated group, but were remarkably enhanced in the Lop+GEGR treated group. Moreover, the downstream signaling pathway of MTL and SS receptors were recovered after GEGR administration. Results of the present study therefore indicate that the laxative effects of GEGR treatment may be tightly related with the regulation of gastrointestinal hormones in the Lop-induced constipation model.


Subject(s)
Animals , Cholecystokinin , Constipation , Drinking , Eating , Gastrins , Gastrointestinal Hormones , Loperamide , Models, Animal , Motilin , Mucous Membrane , Phenobarbital , Rats , Somatostatin , Water
20.
Yonsei Medical Journal ; : 1174-1180, 2018.
Article in English | WPRIM | ID: wpr-718494

ABSTRACT

PURPOSE: Growth hormone secretagogues (GHSs) possess the ability to release growth hormone (GH) in the body. This study aimed to investigate the effects of MK-677, an orally active GHS, on somatic growth in rats. MATERIALS AND METHODS: The serum levels of GH were measured after oral administration of MK-677 to confirm GH stimulatory effects. Body weight, body length, tibia length, epiphyseal plate width, and serum levels of insulin-like growth factor (IGF)-I were measured after oral administration of 4 mg/kg of MK-677 for 6 weeks to investigate growth-promoting effects. RESULTS: Oral administration of MK-677 at 4 mg/kg increased peak GH concentrations by 1.8-fold, compared to baseline. However, oral administration of MK-677 for 6 weeks did not increase body growth or serum levels of IGF-I. At 6 weeks after treatment, the GH response to MK-677 was abolished. Pituitary GH mRNA and hypothalamic GH-releasing hormone mRNA, and GH secretagogue receptor (GHSR) mRNA expression in the pituitary and hypothalamus did not differ between the control and treatment group. Somatostatin (SST) mRNA expression in the hypothalamus was markedly increased in the treatment group, whereas SST receptor (SSTR)-2 mRNA expression in the pituitary gland was decreased. Protein expression of hypothalamic GHSR, SST, and pituitary SSTR-2 showed patterns similar to those for mRNA expression. CONCLUSION: Our results suggest that prolonged administration of MK-677 in rats does not promote growth despite the GH stimulatory effect of MK-677, which may be related to increased expression of SST in the hypothalamus. Further studies are needed to overcome the observed desensitization to GHS.


Subject(s)
Administration, Oral , Animals , Body Weight , Growth Hormone , Growth Plate , Hypothalamus , Insulin-Like Growth Factor I , Pituitary Gland , Rats , RNA, Messenger , Somatostatin , Tibia
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