Surgery for intractable epilepsy in a 14-year-old girl

ABSTRACT

Hong Kong Med J 2001;7:97-100 | Number 1, March 2001
CASE REPORT
Surgery for intractable epilepsy in a 14-year-old girl
WW Cheng, H Otsubo, OC Snead
Department of Paediatrics, Caritas Medical Centre, 111 Wing Hong Street, Shamshuipo, Hong Kong
 
 
We report on a 14-year-old girl who presented with a 2-year history of simple and complex partial seizures with secondary generalisation. Monotherapy using carbamazepine and combination therapy using carbamazepine and gabapentin had been tried within the 2 years before presentation. Seizure control, however, was poor. Magnetic resonance imaging showed structural abnormalities over the right occipital and temporal lobes. Continuous scalp video electroencephalography was performed over 4 days, during which six clinical seizures were associated with electroencephalography changes at the right occipital and temporal lobes. Invasive intracranial video electroencephalography identified a focus at the right occipital lobe, a focus at the right temporal lobe that spread rapidly to the right parietal lobe, and an irritative zone over the posterior part of the right frontal lobe. Functional mapping delineated the motor and sensory cortices. Right temporal lobectomy, right occipitoparietal cortical excision, and multiple subpial transections of the posterior part of the right frontal lobe were performed. For 16 months after the surgery, the patient has been seizure-free while receiving drug treatment, and the only complication reported has been a segmental loss of the left visual field.
 
Key words: Brain diseases/surgery; Child; Electroencephalography; Epilepsy, temporal lobe/surgery; Magnetic resonance imaging
 
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Classic late infantile neuronal ceroid lipofuscinosis in a Chinese patient

ABSTRACT

Hong Kong Med J 2001;7:93-6 | Number 1, March 2001
CASE REPORT
Classic late infantile neuronal ceroid lipofuscinosis in a Chinese patient
CH Ko, CK Kong, TC Chow, KC Lee
Department of Paediatrics, Caritas Medical Centre, 111 Wing Hong Street, Shamshuipo, Hong Kong
 
 
Neuronal ceroid lipofuscinoses are a group of rare neurodegenerative disorders that are characterised by an accumulation of autofluorescent lipopigments in neurons and extraneuronal tissues. We report on a 4-year-old boy who presented with an acute onset of seizures followed by rapid psychomotor deterioration, ataxia, and visual failure. Photic stimulation at 1 to 3 Hz elicited discrete spike and wave discharges in the electroencephalogram, which were diminished at a higher frequency of stimulation. The electroretinogram was extinct. Magnetic resonance imaging of the brain showed generalised cerebral and cerebellar atrophy. Electron microscopic examination of lymphocytes and samples of muscle and skin revealed characteristic curvilinear inclusion bodies. To our knowledge, this is the first case of late infantile neuronal ceroid lipofuscinosis to be reported in a Hong Kong Chinese patient.
 
Key words: Child, preschool; Convulsions/etiology; Electroencephalography; Magnetic resonance imaging; Neuronal ceroid-lipofuscinosis
 
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Meningoencephalitis caused by Bacillus cereus in a neonate

ABSTRACT

Hong Kong Med J 2001;7:89-92 | Number 1, March 2001
CASE REPORT
Meningoencephalitis caused by Bacillus cereus in a neonate
WP Chu, TL Que, WK Lee, SN Wong
Department of Paediatrics, Tuen Mun Hospital, Tsing Chung Koon Road, Tuen Mun, New Territories, Hong Kong
 
 
We report on a newborn boy, who was delivered at 26 weeks' gestation by emergency caesarean section because of a prolapsed cord and breech presentation. Grade IV hyaline membrane disease subsequently developed, for which a surfactant was given. On day 8, there were frequent apnoeic attacks, and on day 30, marked irritability developed, as did intermittent stiffening of all four limbs. The anterior fontanelle was bulging and tense, and the cerebrospinal fluid was found to be turbid. Gram staining of the cerebrospinal fluid and blood revealed Gram-positive bacilli. Subsequent culturing yielded Bacillus cereus, which was sensitive to amikacin and vancomycin. Severe cerebral oedema developed, however, and computed tomography of the brain showed bright cortical sulci, suggestive of meningitis. The baby died on day 37, and post-mortem histological examination of the brain showed extensive liquefactive necrosis with abundant neutrophilic infiltration. Since infection with Bacillus cereus is rapidly fatal, early recognition of infection by this organism is important.
 
Key words: Bacillus cereus; Bacillaceae infections; Brain/pathology; Infant, newborn; Meningoencephalitis
 
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Crusted (Norwegian) scabies in two old-age home residents

ABSTRACT

Hong Kong Med J 2000;6:428-30 | Number 4, December 2000
CASE REPORT
Crusted (Norwegian) scabies in two old-age home residents
LY Chan, WYM Tang, HHF Ho, KK Lo
Social Hygiene Service, Department of Health, Hong Kong
 
 
Scabies is commonly seen in hospitals, where it frequently affects geriatric and convalescent patients. The clinical features of the classic form of scabies are well recognised. Crusted (Norwegian) scabies, which is a hyperinfestation variant of scabies, is very contagious and can present as other dermatoses, thus delaying the correct diagnosis and management. Two residents of different old-age homes presented with hyperkeratotic skin eruptions, which later proved to be crusted scabies. In both cases, the scabies was initially misdiagnosed as eczema. The delay in making a correct diagnosis led to an outbreak of scabies in the old-age home in which one of the patients was residing.
 
Key words: Aged; Scabes/pathology; Sarcoptes scabiei; Skin/parasitology
 
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Abdominal pregnancy presenting as a missed abortion at 16 weeks' gestation

ABSTRACT

Hong Kong Med J 2000;6:425-7 | Number 4, December 2000
CASE REPORT
Abdominal pregnancy presenting as a missed abortion at 16 weeks' gestation
KY Kun, PY Wong, MW Ho, CM Tai, TK Ng
Department of Obstetrics and Gynaecology, Pamela Youde Nethersole Eastern Hospital, 3 Lok Man Road, Chai Wan, Hong Kong
 
 
We report on an abdominal pregnancy that presented as a missed abortion at 16 weeks' gestation and review the literature on the management of abdominal pregnancy. The clinical presentation of abdominal pregnancy varies, and the diagnosis depends on a high index of suspicion. Ultrasonography is useful for early diagnosis of the condition. The management depends on the gestation at presentation; for advanced abdominal pregnancy, surgical intervention is recommended. The treatment of the placenta is a matter of controversy. In general, expectant management is suggested. When the placenta is left behind, the use of prophylactic methrotrexate is not advocated. An awareness of abdominal pregnancy is very important for reducing associated morbidity and mortality.
 
Key words: Laparotomy; Pregnancy, abdominal/ultrasonography; Pregnancy complications; Pregnancy outcome
 
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Hypothyroidism presenting as hypercholesterolaemia and simvastatin-induced myositis

ABSTRACT

Hong Kong Med J 2000;6:423-4 | Number 4, December 2000
CASE REPORT
Hypothyroidism presenting as hypercholesterolaemia and simvastatin-induced myositis
YT Hung, VTF Yeung
Department of Medicine and Geriatrics, Our Lady of Maryknoll Hospital, 118 Shatin Pass Road, Wongtaisin, Hong Kong
 
 
We report on a 50-year-old woman who presented with hypertension. She was given simvastatin for hypercholesterolaemia. The creatine kinase level was 3180 U/L at the 3-month follow-up visit, which was thought to be due to simvastatin treatment. Although treatment was discontinued, the creatine kinase level 4 months later remained higher than 3000 U/L. Echocardiography revealed mild pericardial effusion and normal left ventricular function; the electromyogram was also normal. The patient subsequently showed signs and symptoms suggestive of hypothyroidism, which was confirmed by measurements of the concentration of thyroid-stimulating hormone (>100 mU/L) and free thyroxine (<2 pmol/L). Thyroxine replacement therapy normalised the creatine kinase and cholesterol levels. This case illustrates the importance of excluding underlying causes of hypercholesterolaemia before contemplating lipid-lowering therapy.
 
Key words: Hypercholesterolemia; Hypertension/complications; Hypothyroidism; Lipids/blood; Myositis/chemically induced
 
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A case of giant malignant phaeochromocytoma

ABSTRACT

Hong Kong Med J 2000;6:325-8 | Number 3, September 2000
CASE REPORT
A case of giant malignant phaeochromocytoma
FKW Chan, KL Choi, SC Tiu, CC Shek, TK Au Yong
Department of Medicine, Queen Elizabeth Hospital, 30 Gascoigne Road, Kowloon, Hong Kong
 
 
Malignant phaeochromocytoma is defined as the presence of tumour deposits at sites that are normally devoid of chromaffin cells. We report on a 63-year-old man who had a giant malignant phaeochromocytoma of the right adrenal gland that encased the inferior vena cava. The urinary excretion rates of catecholamines and their metabolites were normal, except for normetanephrine, which was excreted at a higher rate than normal. The tumour was surgically unresectable by laparotomy. Postoperatively, the patient was given a 4-month trial of subcutaneous octreotide and intravenous meta-iodobenzylguanidine I 131. Occult lung secondary tumours were first detected by meta-iodobenzylguanidine scintigraphy after 2 years, and the patient died of bone and lung metastases 1 year later. Because phaeochromocytoma is rare, local experience in managing this disease is limited. This report alerts physicians of the methods of diagnosing and managing surgically unresectable malignant phaeochromocytoma.
 
Key words: Adrenal gland neoplasms; Iodine radioisotopes; 3-Iodobenzylguanidine; Octreotide; Phaeochromocytoma
 
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Acute epiglottitis presenting as the sensation of a foreign body in the throat

ABSTRACT

Hong Kong Med J 2000;6:322-4 | Number 3, September 2000
CASE REPORT
Acute epiglottitis presenting as the sensation of a foreign body in the throat
CH Chung
Accident and Emergency Department, North District Hospital, Sheung Shui, New Territories, Hong Kong
 
 
A 49-year-old man presented with dysphagia and the sensation of a foreign body in the throat, after he had swallowed chicken meat that contained bones during the previous evening. There were no respiratory symptoms. A plain lateral soft-tissue X-ray of the neck and oesophagogastroduodenoscopy showed a grossly swollen epiglottis. His condition improved rapidly with intravenous antibiotic therapy. As acute epiglottitis may be a sudden life-threatening condition, a high index of suspicion should be maintained for patients who present with an obstructive sensation in the throat.
 
Key words: Acute disease; Adult; Epiglottitis/radiography; Foreign bodies; Pharynx
 
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Removal of a dinner fork from the stomach by double-snare endoscopic extraction

ABSTRACT

Hong Kong Med J 2000;6:319-21 | Number 3, September 2000
CASE REPORT
Removal of a dinner fork from the stomach by double-snare endoscopic extraction
PTL Yong, CH Teh, M Look, SB Wee, JCH Tan, SP Chew, CH Low
Grace Polyclinic, 134 East Coast Road, Singapore 428819, Singapore
 
 
Long and pointed foreign objects in the stomach are difficult to remove by endoscopy, and they can cause complications such as perforation and impaction. The endoscopic removal of long and pointed objects involves the following principles: (1) presenting the blunt end cephalad to prevent perforation or impaction during extraction; (2) orienting the long axis of the object in the line of extraction; and (3) applying traction to the foreign body without losing grip. Currently practised methods of extraction, which use a protector hood or an overtube, do not address these three principles. We report on a case in which an ingested metal dinner fork was removed from the stomach by using a double wire-loop snare technique. This method uses two snares to hold the object and allows the endoscopist to change the presentation, orient the axis, and maintain traction to allow the safe removal of long and pointed objects.
 
Key words: Endoscopy, gastrointestinal; Foreign bodies/therapy; Gastroscopy/methods; Stomach
 
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Management of thallium poisoning

ABSTRACT

Hong Kong Med J 2000;6:316-8 | Number 3, September 2000
CASE REPORT
Management of thallium poisoning
PWI Pau
Suite 202, 175 N. Jackson Avenue, San Jose, California, CA 95116, United States
 
 
A case of acute thallium poisoning in a 67-year-old Chinese woman is described. She presented with acute pain in the chest, abdomen, and lower limbs. The diagnosis was not made, however, until alopecia developed. Detoxification treatment, which included Prussian blue (potassium ferric hexacyanoferrate) was then given, but further neurological damage occurred. The patient's motor function recovered after 1 year, but residual sensory neuropathy remained. This case illustrates that tissue-bound thallium may cause prolonged neurological damage if detoxification therapy is not commenced within 72 hours of the onset of acute poisoning. Acute abdominal pain and painful neuropathy in the lower extremities are important early diagnostic clues for timely therapy. However, by the time alopecia develops--typically around 2 weeks after the onset of symptoms--detoxification therapy may not be able to prevent the development of prolonged neurological damage.
 
Key words: Ferrocyanides/therapeutic use; Poisoning/drug therapy; Thallium/poisoning; Time factors
 
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