LAM Extra for General Practicioners

[Secondary hyperaldosteronism resulting from a feeding disorder]

TÓTH Géza, RÁCZ Károly, FŰTŐ László

JUNE 20, 2010

LAM Extra for General Practicioners - 2010;2(03)

[INTRODUCTION - A number of diseases can cause hyperreninaemia and secondary hyperaldosteronism due to the stimulation of the renin-angiotensin system (RAS). The authors present a case of a patient suffering from a feeding disorder, whose secondary hyperaldosteronism verified by hormone examinations recovered after resolution of the feeding disorder. CASE REPORT - The authors found that the patient, who had been on an extreme vegetarian diet and avioded all forms of common salt as well as natural sodium intake for 8 years, had consistently normal electrolite levels, normal blood pressure, elevated plasma renin activity (PRA) and plasma aldosterone levels. Salt loading and postural tests verified secondary hyperaldosteronism. All known diseases that might lead to elevated RAS activity were excluded. After cessation of the salt-restricted diet, the patient’s PRA and plasma aldosteron levels returned to the normal range, which confirmed the possibility that the secondary hyperaldosteronism developed because of the feeding disorder. CONCLUSION - The authors have not found similar hormon alterations due to alimentary causes in humans in the literature. According to their hypothesis, the feeding disorder might lead to secondary hyperaldosteronism via affecting the system or systems that regulate RAS activity.]

COMMENTS

0 comments

Further articles in this publication

LAM Extra for General Practicioners

[A holistic approach to neuropathic pain]

KISS Gábor

[Neuropathic pain is a chronic pain disorder due to a primary lesion and/or dysfunction of the peripheral or central nervous system. This tormenting condition causes a lot of distress to the patients, impairs their quality of life, and demands significant expenses. Chronic neuropathic pain is frequently under-diagnosed and mistreated. Explanations for these problems are the complex underlying pathomechanism, variability of symptoms, difficulties in diagnosis, and the differences between the treatment of this and other painful disorders. In addition, comorbid conditions such as anxiety, depression, and sleep disorders are often overlooked. Apart from the diagnostic difficulties, also treatment is usually unsatisfactory. Frequently NSAIDs are used, but they are usually not effective. Undoubtedly, even with the use of evidence-based treatment - such as duloxetine and pregabalin - complete pain relief is not always possible. Lack of proper medical education also contributes to problems in diagnosis and treatment. In western countries, diabetes is the most common cause of polyneuropathy. Painful diabetic neuropathy is the most intensely studied neuropathic pain condition; a lot of evidence comes from randomized controlled trials of this type of neuropathy. The same drugs as in the case of other neuropathic pain conditions are used for the symptomatic treatment of painful diabetic neuropathy. Etiological therapy is based on the best achievable glycemic control. A combination of etiological and symptomatic therapy can be a future treatment, but proving this will require further studies.]

LAM Extra for General Practicioners

[The effect of pantoprazole in chronic laryngitis and pharyngitis associated with gastroesophageal reflux disease]

HERSZÉNYI László

All articles in the issue

Related contents

Lege Artis Medicinae

[Secondary hyperaldosteronism resulting from a feeding disorder]

TÓTH Géza, RÁCZ Károly, FŰTŐ László

[INTRODUCTION - A number of diseases can cause hyperreninaemia and secondary hyperaldosteronism due to the stimulation of the renin-angiotensin system (RAS). The authors present a case of a patient suffering from a feeding disorder, whose secondary hyperaldosteronism verified by hormone examinations recovered after resolution of the feeding disorder. CASE REPORT - The authors found that the patient, who had been on an extreme vegetarian diet and avioded all forms of common salt as well as natural sodium intake for 8 years, had consistently normal electrolite levels, normal blood pressure, elevated plasma renin activity (PRA) and plasma aldosterone levels. Salt loading and postural tests verified secondary hyperaldosteronism. All known diseases that might lead to elevated RAS activity were excluded. After cessation of the salt-restricted diet, the patient’s PRA and plasma aldosteron levels returned to the normal range, which confirmed the possibility that the secondary hyperaldosteronism developed because of the feeding disorder. CONCLUSION - The authors have not found similar hormon alterations due to alimentary causes in humans in the literature. According to their hypothesis, the feeding disorder might lead to secondary hyperaldosteronism via affecting the system or systems that regulate RAS activity.]

Clinical Neuroscience

[What happens to vertiginous population after emission from the Emergency Department?]

MAIHOUB Stefani, MOLNÁR András, CSIKÓS András, KANIZSAI Péter, TAMÁS László, SZIRMAI Ágnes

[Background – Dizziness is one of the most frequent complaints when a patient is searching for medical care and resolution. This can be a problematic presentation in the emergency department, both from a diagnostic and a management standpoint. Purpose – The aim of our study is to clarify what happens to patients after leaving the emergency department. Methods – 879 patients were examined at the Semmel­weis University Emergency Department with vertigo and dizziness. We sent a questionnaire to these patients and we had 308 completed papers back (110 male, 198 female patients, mean age 61.8 ± 12.31 SD), which we further analyzed. Results – Based on the emergency department diagnosis we had the following results: central vestibular lesion (n = 71), dizziness or giddiness (n = 64) and BPPV (n = 51) were among the most frequent diagnosis. Clarification of the final post-examination diagnosis took several days (28.8%), and weeks (24.2%). It was also noticed that 24.02% of this population never received a proper diagnosis. Among the population only 80 patients (25.8%) got proper diagnosis of their complaints, which was supported by qualitative statistical analysis (Cohen Kappa test) result (κ = 0.560). Discussion – The correlation between our emergency department diagnosis and final diagnosis given to patients is low, a phenomenon that is also observable in other countries. Therefore, patient follow-up is an important issue, including the importance of neurotology and possibly neurological examination. Conclusion – Emergency diagnosis of vertigo is a great challenge, but despite of difficulties the targeted and quick case history and exact examination can evaluate the central or peripheral cause of the balance disorder. Therefore, to prevent declination of the quality of life the importance of further investigation is high.]

Clinical Neuroscience

Simultaneous subdural, subarachnoideal and intracerebral haemorrhage after rupture of a peripheral middle cerebral artery aneurysm

BÉRES-MOLNÁR Anna Katalin, FOLYOVICH András, SZLOBODA Péter, SZENDREY-KISS Zsolt, BERECZKI Dániel, BAKOS Mária, VÁRALLYAY György, SZABÓ Huba, NYÁRI István

The cause of intracerebral, subarachnoid and subdural haemorrhage is different, and the simultaneous appearance in the same case is extremely rare. We describe the case of a patient with a ruptured aneurysm on the distal segment of the middle cerebral artery, with a concomitant subdural and intracerebral haemorrhage, and a subsequent secondary brainstem (Duret) haemorrhage. The 59-year-old woman had hypertension and diabetes in her medical history. She experienced anomic aphasia and left-sided headache starting one day before admission. She had no trauma. A few minutes after admission she suddenly became comatose, her breathing became superficial. Non-contrast CT revealed left sided fronto-parietal subdural and subarachnoid and intracerebral haemorrhage, and bleeding was also observed in the right pontine region. The patient had leucocytosis and hyperglycemia but normal hemostasis. After the subdural haemorrhage had been evacuated, the patient was transferred to intensive care unit. Sepsis developed. Echocardiography did not detect endocarditis. Neurological status, vigilance gradually improved. The rehabilitation process was interrupted by epileptic status. Control CT and CT angiography proved an aneurysm in the peripheral part of the left middle cerebral artery, which was later clipped. Histolo­gical examination excluded mycotic etiology of the aneu­rysm and “normal aneurysm wall” was described. The brain stem haemorrhage – Duret bleeding – was presumably caused by a sudden increase in intracranial pressure due to the supratentorial space occupying process and consequential trans-tentorial herniation. This case is a rarity, as the patient not only survived, but lives an active life with some residual symptoms.

Clinical Neuroscience

Life threatening rare lymphomas presenting as longitudinally extensive transverse myelitis: a diagnostic challenge

TOLVAJ Balázs, HAHN Katalin, NAGY Zsuzsanna, VADVÁRI Árpád, CSOMOR Judit, GELPI Ellen, ILLÉS Zsolt, GARZULY Ferenc

Background and aims – Description of two cases of rare intravascular large B-cell lymphoma and secondary T-cell lymphoma diagnosed postmortem, that manifested clinically as longitudinally extensive transverse myelitis (LETM). We discuss causes of diagnostic difficulties, deceptive radiological and histological investigations, and outline diagnostic procedures based on our and previously reported cases. Case reports – Our first case, a 48-year-old female was admitted to the neurological department due to paraparesis. MRI suggested LETM, but the treatments were ineffective. She died after four weeks because of pneumonia and untreatable polyserositis. Pathological examination revealed intravascular large B-cell lymphoma (IVL). Our second case, a 61-year-old man presented with headache and paraparesis. MRI showed small bitemporal lesions and lesions suggesting LETM. Diagnostic investigations were unsuccessful, including tests for possible lymphoma (CSF flow cytometry and muscle biopsy for suspected IVL). Chest CT showed focal inflammation in a small area of the lung, and adrenal adenoma. Brain biopsy sample from the affected temporal area suggested T-cell mediated lymphocytic (paraneoplastic or viral) meningoencephalitis and excluded diffuse large B-cell lymphoma. The symptoms worsened, and the patient died in the sixth week of disease. The pathological examination of the presumed adenoma in the adrenal gland, the pancreatic tail and the lung lesions revealed peripheral T-cell lymphoma, as did the brain and spinal cord lesions. Even at histological examination, the T-cell lymphoma had the misleading appearance of inflammatory condition as did the MRI. Conclusion – Lymphoma can manifest as LETM. In cases of etiologically unclear atypical LETM in patients older than 40 years, a random skin biopsy (with subcutaneous adipose tissue) from the thigh and from the abdomen is strongly recommended as soon as possible. This may detect IVL and provide the possibility of prompt chemotherapy. In case of suspicion of lymphoma, parallel examination of the CSF by flow cytometry is also recommended. If skin biopsy is negative but lymphoma suspicion remains high, biopsy from other sites (bone marrow, lymph nodes or adrenal gland lesion) or from a simultaneously existing cerebral lesion is suggested, to exclude or prove diffuse large B-cell lymphoma, IVL, or a rare T-cell lymphoma.