PubMed Health⌕ Search

Biomedical subjects

A Berbel-García

Publications and source records attributed to A Berbel-García.

6 recordsLinked to original sources

[Hypnic headache: a new case].

INTRODUCTION: Hypnic headache is a condition characterized by nocturnal episodes of headache which periodically waken the sleeping patient. They usually occur in persons over 55 years of age and are thought to be due to some type of disturbance of biological rhythm. CLINICAL CASE: A 70 year old woman, with no relevant past history, complained that during the previous 12-14 months she had been woken from sleep by episodes of headache. The headache was diffuse, non-pulsatile and very intense. The duration was variable, from 15 to 45 minutes and usually disappeared without requiring analgesics. The pain was not associated with autonomic or ocular disorders, nausea, vomitting or focal neurological signs. Both general and neurological examinations were completely normal. No alterations were seen on cranial CT. Treatment with lithium was started and there was marked improvement in the frequency of headaches. CONCLUSIONS: Hypnic headache is an unusual disorder characterized by episodes of holocranial, or rarely hemicranial, headache of moderate-severe intensity and periodic occurrence. Typically the headache wakes the patient whilst he is asleep ('alarm clock') and there are no autonomic or neurological alterations of any type associated with the episode. The condition usually affects persons over 55 years of age, and it has been related to changes in biological rhythms. This presumed alteration of biological pacemakers has been based on the periodicity of the episodes and the response to lithium.

Aged↗

[Acute polyneuropathy and encephalopathy caused by arsenic poisoning].

INTRODUCTION: Acute arsenic toxicity is a multisystemic disease with pleural and pericardial effusions, gastrointestinal symptoms and pancytopenia. The most frequent neurological complication of inorganic arsenic intoxication is a distal symmetrical polyneuropathy. CASE REPORT: We report here a patient who developed a systemic illness followed with severe acute polyneuropathy. Electrophysiological findings suggested a Guillain-Barré syndrome (GBS). Finally an acute encephalopathy appeared which led to reconsideration of the diagnosis. A 24-hour heavy metal urine, nail and hair analysis was performed. A diagnosis of arsenic toxicity was made. Instead of chelating therapy patient died due to respiratory failure. CONCLUSIONS: A misdiagnosis of GBS in inorganic arsenic polyneuropathy is not infrequent. Atypical progression compels to rule out arsenic or heavy metal intoxication. In our case the appearance of the encephalopathy was the key to the diagnosis. It has been suggested that axonal degeneration and segmental demyelination might be equally prominent pathological features of the neuropathy, depending on the dosage and the length of time of exposure to arsenic. The exact pathophysiology of arsenic polyneuropathy remains unclear and a interference with pyruvate oxidation has been postulated.

Arsenic↗

[Transient cerebral oedema associated to hypoglycaemia].

INTRODUCTION: In the adult, hypoglycaemia is documented as a consequence of overdose of insulin or oral hypoglycaemic agents. Neonatal hypoglycaemia is common but rarely symptomatic due to protective mechanisms. Very few reports on hypoglycaemic injury are available in adults and most of them in patients with poor outcome. CASE REPORT: Woman, 45 years old. She is referred to emergency room due to insulin overdose and coma of unknown duration. Glucose level was 15 mg% without other metabolic anomalies. Computerized tomography revealed brain oedema most obvious in the parieto-occipital lobes. Therapy with manitol and glucose was started with total functional recovery. CONCLUSIONS: Brain imaging in neonatal hypoglycaemia shows similar findings. In the acute phase oedema in the parieto-occipital cortex and underlying white matter and atrophy or malacic cysts in the chronic phase have been described. Chronic changes are related to long-term sequelae that vary from development delay and epilepsy to persistent vegetative state. In adults lesions involve hippocampus and basal ganglia. The reasons of different sensitivity of these regions are not fully clear. Differences in regional blood flow autoregulation or in excitotoxins receptors of aspartate have been postulated. Hypoglycaemia may induce blood-brain-barrier permeability and subsequently brain oedema.

Blood Glucose↗

[The importance of neurological examinations in the age of the technological revolution].

INTRODUCTION: Neurologic practice and care have been modified in many important ways during the past ten years, to adapt to the explosion of new information and new technology. Students, residents and practicing physicians have been continuing programs to a model that focuses almost exclusively on the applications to neurologic disorders of the new knowledge obtained from biomedical research. On the other hand high demand for outpatient neurologic care prevents adequate patient's evaluation. CASE REPORTS: Case 1: 65 years old female. Occipital headache diagnosed of tensional origin (normal computerized tomography). Two months later is re-evaluated due to intractable pain and hypoglossal lesion. An amplified computerized tomography revealed a occipital condyle metastasis. Case 2: 21 years old female. Clinical suspicion of demyelinating disease due to repeated facial paresis and sensitive disorder. General exploration and computerized tomography revealed temporo-mandibular joint. Case 3: 60 years old female. Valuation of anticoagulant therapy due to repeated transient ischemic attacks. She suffered from peripheral facial palsy related to auditory cholesteatoma. CONCLUSIONS: Neurologic education is nowadays orientated to new technologies. On the other hand, excessive demand prevents adequate valuation and a minute exploration is substituted by complementary evaluations. These situations generate diagnostic mistakes or iatrogenic. It would be important a consideration of the neurologic education profiles and fulfillment of consultations time recommendations for outpatients care.

Adult↗

[Koro syndrome].

Explore the source record for details and available documents.

Cultural Characteristics↗