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Diabetes Secondary to Pancreatic Disease 继发于胰腺疾病的糖尿病
Pub Date : 2021-07-01 DOI: 10.1093/med/9780198870197.003.0270
P. Weston
Diabetes secondary to pancreatic disease accounts for 0.5% of all cases of diabetes mellitus. These conditions are associated with exocrine as well as endocrine pancreatic failure and present a complex management challenge. Diabetes in patients with haemochromatosis is associated with micro- and macrovascular complications and most patients require insulin therapy. Regular venesection to reduce the iron overload is associated with improvements in glycaemic control. Secondary haemochromatosis occurring in patients with haematological conditions requiring frequent blood transfusions is also associated with diabetes. Diabetes secondary to pancreatic disease is commonly seen and can present complex management problems which are best managed by a multidisciplinary team. Treating the underlying condition, as well as the associated hyperglycaemia, is essential.
继发于胰腺疾病的糖尿病占所有糖尿病病例的0.5%。这些情况与外分泌和内分泌胰腺衰竭有关,并提出了复杂的管理挑战。血色素沉着症患者的糖尿病与微血管和大血管并发症相关,大多数患者需要胰岛素治疗。定期切除血管以减少铁负荷与血糖控制的改善有关。继发性血色素沉着症发生在需要频繁输血的血液病患者中,也与糖尿病有关。继发于胰腺疾病的糖尿病是很常见的,可能会出现复杂的管理问题,最好由多学科团队来管理。治疗潜在的疾病,以及相关的高血糖是必不可少的。
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引用次数: 0
Disorders of Sex Development (DSD) in the Newborn 新生儿性发育障碍(DSD
Pub Date : 2021-07-01 DOI: 10.1093/med/9780198870197.003.0186
S. Ahmed, S. Ali
The newborn infant with a suspected disorder of sex development (DSD) presents a challenging scenario. It is paramount that any such chid is assessed by an expert with adequate knowledge about the range of variation in the physical appearance of genitalia, the underlying pathophysiology of disorders of sex development and the strengths and weaknesses of the tests that can be performed in early infancy. By working within a multidisciplinary team, the DSD expert can ensure that the parents’ needs for information are comprehensively addressed and that appropriate investigations are performed in a timely fashion. In the field of rare conditions, it is imperative that the clinician shares the experience with others through national and international clinical and research collaboration so that any evidence for future changes in practice have a stronger foundation than that which is currently available.
新生儿疑似性发育障碍(DSD)提出了一个具有挑战性的方案。最重要的是,任何这类儿童都应由专家进行评估,该专家应充分了解生殖器外观变化的范围、性发育障碍的潜在病理生理学以及可在婴儿期早期进行的检查的优缺点。通过与多学科团队合作,DSD专家可以确保家长对信息的需求得到全面解决,并及时进行适当的调查。在罕见疾病领域,临床医生必须通过国内和国际临床和研究合作与他人分享经验,以便任何关于未来实践变化的证据都比目前可用的证据有更坚实的基础。
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引用次数: 0
Pituitary Tumours in Pregnancy 妊娠期垂体肿瘤
Pub Date : 2021-07-01 DOI: 10.1093/med/9780198870197.003.0175
Wenyu Huang, M. Molitch
Pituitary adenomas are commonly found in general population. The impact of pituitary tumour on fertility are mainly due to over-secretion and/or under-secretion of pituitary hormones due to the tumour secretion per se or compression of pituitary stalk and normal pituitary tissue by the tumour. Diagnosing and managing pituitary tumours during pregnancy are faced with many challenges, including the effect of either hormone excess or hormone deficiency on pregnancy outcome, changes in the pituitary or pituitary-related hormones during pregnancy, changes in tumour size during pregnancy, and the impact of various treatments of pituitary tumours on maternal and fetal outcomes. This chapter will discuss the diagnosis and treatment of patients with prolactinomas, acromegaly, Cushing’s disease and other pituitary tumours during pregnancy.
垂体腺瘤是普通人群的常见病。垂体瘤对生育能力的影响主要是由于肿瘤本身分泌过多和/或分泌不足的垂体激素或肿瘤压迫垂体柄和正常垂体组织。妊娠期垂体肿瘤的诊断和治疗面临着许多挑战,包括激素过量或激素缺乏对妊娠结局的影响,妊娠期垂体或垂体相关激素的变化,妊娠期肿瘤大小的变化,以及垂体肿瘤的各种治疗对母婴结局的影响。本章将讨论妊娠期泌乳素瘤、肢端肥大症、库欣病和其他垂体肿瘤的诊断和治疗。
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引用次数: 0
Type 2 Diabetes and Psychiatry 2型糖尿病和精神病学
Pub Date : 2021-07-01 DOI: 10.1093/med/9780198870197.003.0274
M. Calcia, C. Whicher, H. Price, K. Ismail, C. Moulton
Every category of mental disorders in the World Health Organization International Classification of Diseases 10th Revision (ICD-10) is associated with type 2 diabetes. Concurrent mental disorders add an additional £1.8 billion annually to the costs of type 2 diabetes care. This chapter will summarize those mental disorders most commonly associated with type 2 diabetes (depression, eating disorders, psychotic disorders, and dementia). Practical advice for non-specialists in recognizing these disorders and initiating first-line therapy will also be given. Finally, novel interventions to achieve better integration between mental and physical healthcare and improved biomedical outcomes and outlook for patients will be suggested.
世界卫生组织国际疾病分类第十次修订(ICD-10)中的每一类精神障碍都与2型糖尿病有关。并发精神障碍每年使2型糖尿病护理费用增加18亿英镑。本章将总结与2型糖尿病最相关的精神障碍(抑郁、饮食失调、精神障碍和痴呆)。对于非专业人士在认识这些疾病和开始一线治疗方面的实用建议也将给出。最后,将提出新的干预措施,以更好地实现精神和身体保健的整合,并改善患者的生物医学结果和前景。
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引用次数: 0
Subclinical Hypothyroidism 亚临床甲状腺功能减退
Pub Date : 2021-07-01 DOI: 10.1093/med/9780198870197.003.0070
B. Vaidya, C. Daumerie
Subclinical hypothyroidism is a common condition associated with a raised serum thyroid-stimulating hormone (TSH) but normal serum free thyroxine and triiodothyronine. It is more prevalent in women and people with advancing age. Most patients with subclinical hypothyroidism are asymptomatic. About 2.5% patients progress to overt hypothyroidism annually although the rate of progression is higher in the presence of thyroid autoantibodies. Subclinical hypothyroidism is associated with an increased risk of coronary heart disease, heart failure and cerebrovascular disease in younger patients (<65 years), particularly in those with TSH ≥10.0 mU/L. Currently, there is no randomized controlled trial evidence that levothyroxine prevents these complications, although a large observational study has shown that levothyroxine may reduce the risk of coronary heart disease in younger patients (<70 years). The treatment decision for subclinical hypothyroidism requires careful consideration of the patients’ age as well as the presence of symptoms, thyroid autoantibodies, and cardiovascular risk factors.
亚临床甲状腺功能减退症是一种与血清促甲状腺激素(TSH)升高而血清游离甲状腺素和三碘甲状腺原氨酸正常相关的常见疾病。它在女性和老年人中更为普遍。大多数亚临床甲状腺功能减退患者是无症状的。每年约有2.5%的患者进展为明显的甲状腺功能减退,尽管存在甲状腺自身抗体的进展率更高。亚临床甲状腺功能减退与年轻患者(<65岁)发生冠心病、心力衰竭和脑血管疾病的风险增加相关,尤其是TSH≥10.0 mU/L的患者。目前,没有随机对照试验证据表明左甲状腺素可以预防这些并发症,尽管一项大型观察性研究表明,左甲状腺素可以降低年轻患者(<70岁)患冠心病的风险。亚临床甲状腺功能减退症的治疗决定需要仔细考虑患者的年龄、症状、甲状腺自身抗体和心血管危险因素。
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引用次数: 0
Thyroid Imaging: Non-Isotopic Techniques 甲状腺成像:非同位素技术
Pub Date : 2021-07-01 DOI: 10.1093/med/9780198870197.003.0044
L. Hegedüs, F. N. Bennedbæk
Clinical examination and evaluation of thyroid function remain fundamental in the evaluation of thyroid disorders, but observer variation leads to a considerable heterogeneity in the evaluation of patients with suspected thyroid disease. Thus, it is not surprising that imaging of the thyroid is often performed. Although it most often cannot distinguish between benign and malignant lesions, and its clinical value is thought to be limited, a recent survey confirms the value of ultrasonography (US) in euthyroid patients with a solitary thyroid nodule. The thyroid gland can be evaluated by several non-isotopic imaging techniques. The most commonly used are US, CT, and MRI. Each method has advantages and limitations, and there is no absolute clinical indication for performing any of these imaging procedures in most patients.
甲状腺功能的临床检查和评估仍然是评估甲状腺疾病的基础,但观察者的差异导致对疑似甲状腺疾病患者的评估存在相当大的异质性。因此,经常进行甲状腺成像也就不足为奇了。虽然超声检查通常不能区分良恶性病变,其临床价值被认为有限,但最近的一项调查证实了超声检查(US)在单发甲状腺结节的甲状腺功能正常患者中的价值。甲状腺可以通过几种非同位素成像技术进行评估。最常用的是超声、CT和MRI。每种方法都有其优点和局限性,并且在大多数患者中没有绝对的临床指征。
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引用次数: 0
Hyperprolactinaemia
Pub Date : 2021-07-01 DOI: 10.1093/med/9780198870197.003.0156
Julian P. L. Davis, A. Swiecicka
Hyperprolactinaemia is a common clinical problem with important effects on reproductive function. The condition is often drug-induced but potential pituitary disease, including micro- and macroprolactinoma and non-tumoural hyperprolactinaemia, requires evaluation. Treatment is usually with dopamine agonist drugs such as cabergoline, which suppress hyperprolactinaemia in most patients, and allow restoration of regular ovulation in women. Even large pituitary tumours usually display marked shrinkage with dopamine agonist treatment, hence pituitary surgery is rarely necessary. Women who become pregnant with dopamine agonists usually discontinue the drug during pregnancy, but have a small risk of significant pituitary enlargement.
高泌乳素血症是一种常见的临床疾病,对生殖功能有重要影响。这种情况通常是药物引起的,但潜在的垂体疾病,包括微泌乳素瘤和大泌乳素瘤和非肿瘤性高泌乳素血症,需要评估。治疗通常使用多巴胺激动剂药物,如卡麦角林,可抑制大多数患者的高泌乳素血症,并使女性恢复正常排卵。在多巴胺激动剂治疗下,甚至大的垂体肿瘤通常也表现出明显的萎缩,因此垂体手术很少是必要的。怀孕时服用多巴胺激动剂的妇女通常在怀孕期间停用该药,但有明显垂体增大的小风险。
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引用次数: 0
Menstrual Cycle and Ovulation 月经周期和排卵
Pub Date : 2021-07-01 DOI: 10.1093/med/9780198870197.003.0152
G. Bozdag, B. Ata, Engin Türkgeldi
Understanding the physiology of follicular development is important in order to extrapolate the preclinical data to the clinical side. In this context, there has been an increasing effort to figure out the autocrine/paracrine signalling and microenvironment that will determine the fate of a follicle. The processes of atresia or further development to later stages reaching to a dominant follicle appear to be regulated by highly complicated system that consists oocyte and granulosa cell derived factors, peptides, cytokines, and sex steroids. Additionally, recent research on the menstrual cycle that yields the presence of more than one wave of follicular cohort growing within a single period will undoubtedly implicate our perception on reproductive function, hormonal contraception, and ovarian stimulation during an assisted reproduction treatment. This chapter reviews the current knowledge that reflects the timetable of a follicle throughout the early ages to the formation of dominant follicle and corresponding endometrial changes.
了解卵泡发育的生理学是重要的,以便将临床前数据推断到临床方面。在这种情况下,人们越来越多地努力找出决定卵泡命运的自分泌/旁分泌信号和微环境。闭锁或进一步发育到优势卵泡的过程似乎是由一个高度复杂的系统调节的,该系统由卵母细胞和颗粒细胞衍生因子、肽、细胞因子和性类固醇组成。此外,最近关于月经周期的研究表明,在一个周期内存在多波卵泡队列生长,这无疑会影响我们对辅助生殖治疗中生殖功能、激素避孕和卵巢刺激的认识。本章回顾了目前的知识,反映了整个早期卵泡到显性卵泡形成和相应的子宫内膜变化的时间表。
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引用次数: 0
Monogenic Forms of Diabetes Resulting from Beta-Cell Dysfunction 由细胞功能障碍引起的单基因糖尿病
Pub Date : 2021-07-01 DOI: 10.1093/med/9780198870197.003.0268
A. Hattersley, K. Patel, R. Besser
Monogenic diabetes refers to diabetes resulting from mutations in a single gene. This chapter discusses monogenic disorders causing beta-cell dysfunction, which accounts for the majority of cases. Patients can usually be divided into three clinical categories; maturity-onset diabetes of the young (MODY) which is dominantly inherited familial diabetes, neonatal diabetes diagnosed under the age of 6 months and monogenic diabetes syndromes which are characterized by multiple non-pancreatic features. In each clinical category there are several aetiological genes, which usually result in a discrete clinical phenotype. Genetic diagnosis is now possible in >80% of cases and is crucial in determining appropriate management, predicting clinical course, screening affected relatives, and genetic counselling of unaffected family members. Importantly, in many of the most common causes of monogenic beta-cell diabetes, making a diagnosis can result in greatly improved treatment. However diagnosis can be challenging because of low prevalence rates in a diabetes clinic (1–3%) and the majority of patients are therefore misdiagnosed as having type 1 (T1D) or type 2 diabetes (T2D). Features that distinguish these disorders are discussed.
单基因糖尿病是指由单个基因突变引起的糖尿病。本章讨论引起β细胞功能障碍的单基因疾病,这占大多数病例。患者通常可分为三种临床类型;以遗传性家族性糖尿病为主的成年性糖尿病(MODY)、未满6个月诊断出的新生儿糖尿病以及以多种非胰腺特征为特征的单基因糖尿病综合征。在每个临床类别中都有几个病因基因,这通常导致离散的临床表型。遗传诊断现在在80%以上的病例中是可能的,这对于确定适当的管理、预测临床病程、筛查受影响的亲属以及对未受影响的家庭成员进行遗传咨询至关重要。重要的是,在许多引起单基因β细胞糖尿病的最常见原因中,做出诊断可以大大改善治疗。然而,由于糖尿病诊所的患病率较低(1 - 3%),诊断可能具有挑战性,因此大多数患者被误诊为1型(T1D)或2型糖尿病(T2D)。讨论了区分这些疾病的特征。
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引用次数: 0
Clinical Evaluation of Patients with Suspected Reproductive Endocrine Disorders 疑似生殖内分泌疾病患者的临床评价
Pub Date : 2021-07-01 DOI: 10.1093/med/9780198870197.003.0153
R. Roberts, S. Franks, C. Jayasena
Female reproductive endocrine disorders are common, and can result in significant morbidity for women due to their impact on fertility, in addition to physical, psychological, and sexual consequences. It is therefore important that women with menstrual disorders are recognized, receive thorough clinical evaluation, and have access to appropriate services to facilitate prompt diagnosis so that hormone levels are maintained and the potential health consequences on fertility, bone, and cardiovascular health are minimized. Clinical assessment is often sufficient to determine the likely cause of female reproductive disorders or infertility, and allow subsequent diagnostic evaluation to be performed in a more targeted manner. This chapter will provide a practical and systematic guide to interpreting clinical assessment of female reproductive endocrine disorders.
女性生殖内分泌失调很常见,除了身体、心理和性方面的后果外,还会对生育能力产生影响,从而导致妇女的严重发病率。因此,重要的是要认识到月经紊乱的妇女,接受彻底的临床评估,并获得适当的服务,以促进及时诊断,从而维持激素水平,并尽量减少对生育、骨骼和心血管健康的潜在健康后果。临床评估通常足以确定女性生殖障碍或不孕症的可能原因,并允许以更有针对性的方式进行后续诊断评估。本章将为解读女性生殖内分泌失调的临床评估提供实用而系统的指导。
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引用次数: 0
期刊
Oxford Textbook of Endocrinology and Diabetes 3e
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