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Open access

Diana Oliveira, Mara Ventura, Miguel Melo, Sandra Paiva and Francisco Carrilho

Summary

Addison’s disease (AD) is the most common endocrine manifestation of antiphospholipid syndrome (APS), but it remains a very rare complication of the syndrome. It is caused by adrenal venous thrombosis and consequent hemorrhagic infarction or by spontaneous (without thrombosis) adrenal hemorrhage, usually occurring after surgery or anticoagulant therapy. We present a clinical case of a 36-year-old female patient with a previous diagnosis of APS. She presented with multiple thrombotic events, including spontaneous abortions. During evaluation by the third episode of abortion, a CT imaging revealed an adrenal hematoma, but the patient was discharged without further investigation. A few weeks later, she presented in the emergency department with manifestations suggestive of adrenal insufficiency. Based on that assumption, she started therapy with glucocorticoids, with significant clinical improvement. After stabilization, additional investigation confirmed AD and excluded other etiologies; she also started mineralocorticoid replacement. This case illustrates a rare complication of APS that, if misdiagnosed, may be life threatening. A high index of suspicion is necessary for its diagnosis, and prompt treatment is crucial to reduce the morbidity and mortality potentially associated.

Learning points:

  • AD is a rare but life-threatening complication of APS.

  • It is important to look for AD in patients with APS and a suggestive clinical scenario.

  • APS must be excluded in patients with primary adrenal insufficiency and adrenal imaging revealing thrombosis/hemorrhage.

  • Glucocorticoid therapy should be promptly initiated when AD is suspected.

  • Mineralocorticoid replacement must be started when there is confirmed aldosterone deficiency.

  • Hypertension is a common feature of APS; in patients with APS and AD, replacement therapy with glucocorticoids and mineralocorticoids may jeopardize hypertension management.

Open access

Adriana de Sousa Lages, Isabel Paiva, Patrícia Oliveira, Francisco Portela and Francisco Carrilho

Summary

Insulinomas are the most frequent cause of hyperinsulinaemic hypoglycaemia. Although surgical enucleation is the standard treatment, a few other options are available to high-risk patients who are elderly or present with co-morbidities. We present a case report of an 89-year-old female patient who was admitted to the emergency department due to recurrent hypoglycaemia, especially during fasting. Laboratory work-up raised the suspicion of hyperinsulinaemic hypoglycaemia, and abdominal CT scan revealed a 12 mm nodular hypervascular lesion of the pancreatic body suggestive of neuroendocrine tumour. The patient was not considered a suitable candidate for surgery, and medical therapy with diazoxide was poorly tolerated. Endoscopic ultrasound-guided ethanol ablation therapy was performed and a total of 0.6 mL of 95% ethanol was injected into the lesion by a transgastric approach; no complications were reported after the procedure. At 5 months of follow-up, no episodes of hypoglycaemia were reported, no diazoxide therapy was necessary, and revaluation abdominal CT scan revealed a pancreatic nodular lesion with a size involution of about half of its original volume. The patient is regularly followed-up at the endocrinology clinic and shows a significant improvement in her wellbeing and quality of life.

Learning points:

  • Insulinomas are the most frequent cause of hyperinsulinaemic hypoglycaemia.

  • Surgical enucleation is the standard treatment with a few other options available to high-risk patients.

  • Endoscopic ultrasound-guided ethanol ablation therapy is one feasible option in high-risk patients with satisfactory clinical outcomes, significant positive impact on quality of life and low complication rates related to the procedure.

Open access

Diana Oliveira, Adriana Lages, Sandra Paiva and Francisco Carrilho

Summary

Addison’s disease, or primary adrenocortical insufficiency, is a long-term, potentially severe, rare endocrine disorder. In pregnancy, it is even rarer. We report the case of a 30-year-old pregnant patient with Addison’s disease, referred to Obstetrics-Endocrinology specialty consult at 14 weeks gestation. She had been to the emergency department of her local hospital various times during the first trimester presenting with a clinical scenario suggestive of glucocorticoid under-replacement (nausea, persistent vomiting and hypotension), but this was interpreted as normal pregnancy symptoms. Hydrocortisone dose was adjusted, and the patient maintained regular follow-up. No complications were reported for the remainder of gestation and delivery. Pregnant patients with Addison’s disease should be monitored during gestation and in the peripartum period by multidisciplinary teams. Adjustments in glucocorticoid and mineralocorticoid replacement therapy are often necessary, and monitoring should be based mainly on clinical findings, which becomes increasingly difficult during pregnancy. Patient education and specialized monitoring are key to avoiding complications from under- or over-replacement therapy in this period.

Learning points:

  • An increase in glucocorticoid replacement dose is expected to be necessary during pregnancy in a woman with Addison’s disease.

  • Patient education regarding steroid cover and symptoms of acute adrenal crisis are fundamental.

  • Monitoring in this period is challenging and remains mainly clinical.

  • The increase in hydrocortisone dose often obviates the need to increase fludrocortisone dose.