Nesbitt L T
Department of Dermatology Louisiana State University School of Medicine, New Orleans 70112, USA.
Dermatol Clin. 1995 Oct;13(4):925-39.
For proper use of systemic GCS, a basic knowledge of the normal HPA axis, as well as knowledge of the pharmacology, clinical usage guidelines, and adverse reactions of these agents is imperative. Both short-term (acute) and long-term side effects should be well known by the physician. The pros and cons of oral and parenteral therapy for various disorders and in various situations should be recognized. For long-term therapy, an intermediate-acting agent such as prednisone in single, early morning doses is most commonly used to minimize suppression of the HPA axis. Alternate-morning doses produce even less suppression if the disease process will respond. A through patient history, including general medical history and medications the patient is taking, is important to anticipate any potential problems. Weight and blood pressure should be checked initially and every 1 to 3 months thereafter. Blood glucose, electrolytes, and lipid studies, including triglycerides, should be done approximately every 6 months. An ophthalmology examination should be performed every year, and stool examination for occult blood and chest radiography can be obtained as indicated. Bone density studies might be necessary in patients who are at high risk for osteoporosis. Specific acute situations may dictate other studies. The patient on long-term GCS should be kept as active as possible, as mild-to-moderate exercise helps prevent certain side effects, such as osteoporosis. The dose of oral GCS is best given with food to prevent gastrointestinal irritation, and agents to decrease gastric acidity might be needed in certain situations. Exposure to infections should be prevented, where possible, and treatment initiated at the first sign of systemic or cutaneous infection. Pain should be evaluated early, especially abdominal pain or bone pain; MRI is indicated if aseptic necrosis of bone is suspected. Both trauma and severe sun exposure should be avoided. Consultation with other specialists is strongly recommended when the situation dictates. Diet is one of the most important strategies to minimize side effects from long-term GCS therapy. Vegetable protein should be increased in the diet, and fats and carbohydrates limited. Adequate calcium is imperative, and calcium supplementation is recommended for high-risk osteoporosis patients. Small amounts of vitamin D may be necessary to increase absorption of calcium. Restriction of sodium is also important, as is maintainance of dietary potassium. Supplemental potassium may be necessary in some patients, and a thiazide diuretic might be useful in patients with hypertension, edema, or osteoporosis. Vitamin C can be given to promote wound healing. A good doctor-patient relationship is important in managing the patient on long-term GCS. The patient must return for regular visits and be encouraged to promptly report any adverse reactions to the physician. If these criteria are maintained and the strategies noted previously are followed, problems from long-term therapy with GCS will be minimized.
为正确使用全身性糖皮质激素(GCS),必须掌握正常下丘脑-垂体-肾上腺(HPA)轴的基本知识,以及这些药物的药理学、临床使用指南和不良反应。医生应熟知短期(急性)和长期副作用。应认识到口服和胃肠外治疗在各种疾病和不同情况下的利弊。对于长期治疗,最常使用中效制剂,如清晨单次服用的泼尼松,以尽量减少对HPA轴的抑制。如果疾病进程有反应,隔日清晨服药产生的抑制作用更小。详细的患者病史,包括总体病史和患者正在服用的药物,对于预测任何潜在问题很重要。最初应检查体重和血压,此后每1至3个月检查一次。血糖、电解质和血脂检查,包括甘油三酯,应大约每6个月进行一次。每年应进行眼科检查,并根据需要进行大便潜血检查和胸部X线检查。对于骨质疏松症高危患者,可能需要进行骨密度研究。特定的急性情况可能需要进行其他检查。长期使用GCS的患者应尽可能保持活动,因为轻度至中度运动有助于预防某些副作用,如骨质疏松症。口服GCS的剂量最好与食物一起服用,以防止胃肠道刺激,在某些情况下可能需要使用降低胃酸的药物。应尽可能预防感染,一旦出现全身或皮肤感染迹象应立即开始治疗。应尽早评估疼痛,尤其是腹痛或骨痛;如果怀疑有骨无菌性坏死,应进行磁共振成像(MRI)检查。应避免外伤和强烈日晒。根据情况强烈建议咨询其他专科医生。饮食是尽量减少长期GCS治疗副作用的最重要策略之一。饮食中应增加植物蛋白,限制脂肪和碳水化合物摄入。充足的钙必不可少,对于骨质疏松症高危患者建议补充钙剂。可能需要少量维生素D以增加钙的吸收。限制钠摄入也很重要,维持饮食中的钾含量也很重要。一些患者可能需要补充钾,噻嗪类利尿剂可能对高血压、水肿或骨质疏松症患者有用。可给予维生素C以促进伤口愈合。良好的医患关系对于管理长期使用GCS的患者很重要。患者必须定期复诊,并鼓励其及时向医生报告任何不良反应。如果维持这些标准并遵循上述策略,长期使用GCS治疗产生的问题将减至最少。