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Fetal ultrasonography to prevent irreversible neurological sequelae of neonatal neuroblastoma.

An intra-abdominal mass was observed by fetal ultrasonography at 32 weeks of gestation. The baby was diagnosed as having neuroblastoma at the time of delivery at 39 weeks and its lower extremities were completely paralyzed. The chemotherapy after birth was quite effective to reduce the mass volume but neurological sequelae failed to improve. By carefully monitoring the movement of extremities, it may have been possible to prevent irreversible by inducing delivery before that state was reached.

Antineoplastic Agents↗

Dysarthria and dysphagia as long-term sequelae in a child treated for posterior fossa tumour.

The current case report provides a comprehensive description of the persistent dysarthria and dysphagia evident in a 7.5 year old child treated for recurrent posterior fossa tumour (PFT). AC was assessed on a comprehensive perceptual and instrumental test battery incorporating all components of the speech production system (respiration, phonation, resonance, articulation and prosody) 2 years and 4 months following completion of her treatment. The nature of her swallowing impairment was investigated through the use of videofluoroscopic evaluation of swallowing (VFS). A mild dysarthria with ataxic and LMN components was identified, although overall speech intelligibility was not affected. A moderate dysphagia was also identified with impairment in all three phases of the swallowing process; oral preparatory, oral and pharyngeal. Dysarthria and dysphagia as persistent sequelae in children treated for PFT have implications for the long-term management of these children. The need for appropriate treatment regimes, as well as pre-surgical counselling regarding dysarthria and dysphagia as possible outcomes following surgery are highlighted.

Antineoplastic Combined Chemotherapy Protocols↗

Apnea diving: long-term neurocognitive sequelae of repeated hypoxemia.

This article examines the neurocognitive sequelae of repeated exposure to hypoxemia in apnea (breath-hold) divers. A brief review of the literature on the physiological and neurological adaptations involved in the "human diving reflex" is presented. The results from a neuropsychological investigation of N = 21 elite apnea divers are evaluated. Standard neuropsychological tests, with known sensitivity to mild brain insults, included speed of visuo-motor responding, speed of language comprehension, response inhibition, and visual and verbal attention and recall tasks. Results indicated that the breath-hold divers performed tasks within the average range compared to norms on all tests, suggesting that 1-20 years of repeated exposure to hypoxemia including multiple adverse neurological events did not impact on performance on standard neuropsychological tasks. The results are discussed in relation to implications for clinical conditions such as sleep apnea, respiratory disorders, altitude sickness, and recreational apnea activities.

Adult↗

Evaluation of chronic neurological sequelae after acute pesticide exposure using SPECT brain scans.

A case in which SPECT brain imaging was used in the diagnosis and treatment of chronic effects from acute acetylcholinesterase inhibitor poisoning is presented. The patient was exposed to an insecticide mixture containing phosphorothiate, pyrethrin, piperonyl butoxide, and petroleum distillates, which produced symptoms consistent with acute acetylcholinesterase inhibitor poisoning as well as an upper respiratory tract irritant. Delayed sequelae of gross neurologic symptoms followed, that is, coarse tremor, intermittent hemiballistic movements of the right arm and leg, flaccid muscular tone, fasciculations of muscle groups, muscle cramps, and sensory disturbances. A brain single-photon emission computerized tomography (SPECT) scan was performed 34 mo postexposure, revealing significantly decreased blood flow to the left temporal lobe and to the right and left basal ganglia. The patient's paresthesias were treated with phenytoin, which resulted in worsening of her movement disorder. A trial of amantadine and selegiline (Deprenyl) resulted in a dramatic reduction in dysfunctional movements and ataxia. Post amantadine and selegiline therapy, brain SPECT images revealed significantly improved blood flow with minimally decreased blood flow to the right and left basal ganglia. The use of SPECT scan techniques helped to elucidate objective chronic central nervous system effects subsequent to an acute insecticide exposure and also assisted in the evaluation of the effectiveness of therapeutic intervention.

Adult↗

Ability and perceived difficulty in daily activities in people with poliomyelitis sequelae.

Polio involvement and its relation to ability in terms of independence and perceived difficulty in activities in daily living (ADL) were studied in outpatients (median age 57 years) with poliomyelitis sequelae (n = 133). The use and need of assistive devices and housing conditions were recorded. The subjects had a high degree of independence in personal ADL, whereas more than 50% were dependent on cleaning, shopping and transportation. A considerable number of subjects independent in ADL reported difficulties in daily activities. The majority of interventions in the form of housing adaptation and assistive devices were provided for persons severely weakened by polio. Ratings of perceived difficulty indicated need of interventions to prevent overload and increased dependence in ADL. However, about half of the recommended mobility assistive devices were rejected. The results indicate that polio subjects try to maintain their independence despite perceived difficulties and may be reluctant to use assistive devices.

Activities of Daily Living↗

Treatment of sequelae of radial head fractures with a bipolar radial head prosthesis: good outcome after 1-4 years follow-up in 11 patients.

BACKGROUND: In the presence of additional disruption of the distal radioulnar ligaments, the interosseous membrane, or the lateral- and/or medial collateral ligament, radial head fractures treated by resection will result in valgus elbow instability, proximal radial migration and/or posterolateral rotatory instability. Radial head replacement has been used to treat or prevent this. We report our experience with the Judet CRF II radial head prosthesis. PATIENTS AND METHODS: We treated 11 patients with a bipolar radial head prosthesis because of elbow instability after previous treatment for Mason-Johnston type III or IV radial head fractures. The outcome was assessed clinically using two standardized elbow function assessment scales, and radiographically after a mean follow-up of 2 years. RESULTS: Clinical outcome was either good or excellent in all patients; all elbows were stable. Radiographically, there were no signs of loosening, fracture or heterotopic ossification. 2 patients required reoperation for subluxation of the prosthesis; both were treated by reducing the size of the modular head of the prosthesis. There was erosion of the capitellum in 1 patient. INTERPRETATION: Bipolar radial head replacement can be used successfully for treatment of the sequelae of radial head fractures. The long-term outcome is, however, unknown.

Adult↗

Matrix metalloproteinase (MMP)-8 and MMP-9 in cerebrospinal fluid during bacterial meningitis: association with blood-brain barrier damage and neurological sequelae.

To evaluate the spectrum and regulation of matrix metalloproteinases (MMPs) in bacterial meningitis (BM), concentrations of MMP-2, MMP-3, MMP-8, and MMP-9 and endogenous inhibitors of metalloproteinases (TIMP-1 and TIMP-2) were measured in the cerebrospinal fluid (CSF) of 27 children with BM. MMP-8 and MMP-9 were detected in 91% and 97%, respectively, of CSF specimens from patients but were not detected in control patients. CSF levels of MMP-9 were higher (P<.05) in 5 patients who developed hearing impairment or secondary epilepsy than in those who recovered without neurological deficits. Levels of MMP-9 correlated with concentrations of TIMP-1 (P<.001) and tumor necrosis factor-alpha (P=.03). Repeated lumbar punctures showed that levels of MMP-8 and MMP-9 were regulated independently and did not correlate with the CSF cell count. Therefore, MMPs may derive not only from granulocytes infiltrating the CSF space but also from parenchymal cells of the meninges and brain. High concentrations of MMP-9 are a risk factor for the development of postmeningitidal neurological sequelae.

Blood-Brain Barrier↗

Impaired T helper 1 function of nonstructural protein 3-specific T cells in Japanese patients with encephalitis with neurological sequelae.

Japanese encephalitis virus (JEV) is the principal cause of viral encephalitis. The predominance of children among patients with encephalitis in areas where JEV is endemic that do not have immunization programs suggests that acquired immunity is critical in protecting adults against symptomatic JEV encephalitis. We characterized and compared the T cell response to nonstructural (NS) protein 3 between healthy individuals naturally exposed to JEV and patients in the convalescent phase of JEV encephalitis. The NS3 protein, used as a fusion to the 11-amino acid protein transduction domain of human immunodeficiency virus Tat, elicited CD4(+) and T helper-dependent CD8(+) T cell responses. The production of interferon (IFN)- gamma by responding T cells was significantly higher in healthy donors than in patients, correlating strongly with acquired protective immunity to JEV. Furthermore, a striking inverse association between IFN- gamma levels and the severity of postencephalitic sequelae in patients implicated a role of IFN- gamma in recovery.

Antibody Formation↗

Sequelae of traveler's diarrhea: focus on postinfectious irritable bowel syndrome.

Traveler's diarrhea is usually an acute, self-limited illness; however, in some patients, enteric symptoms can persist for weeks, months, or years. It has been estimated that up to 3% of patients with traveler's diarrhea have symptoms for >30 days. The differential diagnosis includes persistent infection, coinfection, temporary postinfection phenomena, or malabsorptive syndromes. Once these possibilities are excluded, and if symptoms persist, a diagnosis of postinfectious irritable bowel syndrome (PI-IBS) becomes more likely. PI-IBS has recently become a topic of considerable clinical and investigative interest, because evidence validating it as a diagnosis and elucidating its pathophysiological mechanisms has accumulated. Epidemiological evidence suggests that PI-IBS is a relatively common sequela of acute gastroenteritis. Experimental evidence suggests that chronic inflammation following acute bacterial infection has a pathophysiological role in the development of PI-IBS. A fuller understanding of these pathophysiological mechanisms will lead to a more directed therapeutic approach and, perhaps, a reevaluation of prophylaxis for traveler's diarrhea as a means of primary prevention of PI-IBS.

Diarrhea↗

Epidemiology and prevention of group A streptococcal infections: acute respiratory tract infections, skin infections, and their sequelae at the close of the twentieth century.

Infections of the upper respiratory tract and skin due to group A Streptococcus are common, and the organism is highly transmissible. In industrialized countries and to some extent in developing countries, control efforts continue to emphasize that group A streptococcal pharyngitis should be properly diagnosed and appropriately treated. In developing countries and in indigenous populations where the burden of group A streptococcal diseases appears greatest, the epidemiology is less completely defined and may differ from that in industrialized countries. There is a need for accurately collected epidemiological data from developing countries, which may also further clarify the pathogenesis of group A streptococcal infections and their sequelae. While proper treatment of group A streptococcal pharyngitis continues to be essential in all populations, it may be appropriate in developing countries to consider additional strategies to reduce rates of pyoderma.

Acute Disease↗

P-selectin blockade following fluid-percussion injury: behavioral and immunochemical sequelae.

Traumatic brain injury (TBI) can cause polymorphonuclear leukocyte (PMN) migration into brain parenchyma, mediating various cytodestructive mechanisms. We examined the effect of blocking leukocyte/endothelial cell adhesion molecules (CAMs) on the anatomic and behavioral sequelae in lateral fluid-percussion injury in rats. Monoclonal antibodies (MAb) directed against a functional (PB1.3) or nonfunctional (PNB1.6) epitope on endothelial P-selectin were used as treatments. Subjects were tested in the Morris water maze (MWM) at 7 and 14 days postinjury then immunohistochemistry was performed using antibodies that recognize ChAT, GFAP and OX-42. A second set of animals underwent myeloperoxidase (MPO) assay in the brain parenchyma and a third set was used to examine neutrophil migration using the MAb RP-3. Time in quadrant, but not escape latency or proximity improved with PB1.3 (p < 0.05). Similarly, PB1.3 reduced MPO levels after injury (p < 0.05), in the ipsilateral cortex. No significant difference occurred in neutrophil counts in cortex, corpus callosum, hippocampus, and thalamus between injured only rats and injured rats treated with PB1.3. Quantitative analysis of cholinergic cells in the medial septum showed a protective effect by PB1.3. Densitometry readings of GFAP and OX-42 immunolabeling revealed no discernible differences between the treated and untreated injured rats. Qualitatively, there was no difference in microglia or astrocyte response to treatment. Treatment with P-selectin blockade in brain-injured rats may reduce PMN migration into brain, help preserve cholinergic immunolabeling of medial septal nucleus neurons, and may alleviate mnemonic deficits.

Animals↗

Influence of the metabolic sequelae of liver cirrhosis on nutritional intake.

BACKGROUND: The liver plays a central role in ingestive behavior; alterations in metabolic signaling to the brain stem as a result of chronic liver disease could influence intake. OBJECTIVE: We examined the influence of metabolic sequelae of liver disease on nutrient intake and nutritional status. DESIGN: Nutritional status and spontaneous dietary intake were examined in 65 cirrhotic patients and 14 control subjects. The response to feeding was investigated in 14 control subjects and a subgroup of 31 cirrhotic patients. Comparisons were made between patients with primary biliary cirrhosis (PBC) and hepatocellular cirrhosis (HC). RESULTS: Patients were nutritionally depleted. The fasting rate of lipid oxidation in the HC group was greater than in the control group (P < 0.01). In the fasting state, only HC patients were hyperinsulinemic [121.2+/-78.5 compared with 41.3+/-18.6 pmol/L in control subjects (P < 0.001) and 64.7+/-15.8 pmol/L in PBC patients (P < 0.05)] and this persisted during the response to feeding. In the fed state, the magnitude of change in carbohydrate oxidation was greatest in the HC group (HC: 34.6%; control: 23.1%; PBC: 25.2%). Carbohydrate and energy intakes of the HC group were lower than in control subjects (carbohydrate: 193+/-38.3 compared with 262+/-48.1 g/d, P < 0.05; energy: 6.29+/-1.40 compared with 9.0+/-2.12 MJ/d, P < 0.05). CONCLUSIONS: Reductions in carbohydrate intake could be mediated by hyperinsulinemia and compounded by preferential uptake of carbohydrate. This may enhance gastrointestinal satiety signaling and contribute to hypophagia.

Analysis of Variance↗

Reduction of venous sequelae of i.v. diazepam with a fat emulsion as solvent.

Venous sequelae were studied in 93 female patients undergoing minor gynaecological procedures. They were premedicated with diazepam i. v. dissolved in a fat emulsion (Diazemuls) injected to a superficial vein of the right hand. The patients observed the site of injection for 14 days and recorded their findings. Twenty-eight per cent reported mild tenderness and 7.5% mild or moderate swelling of short duration. Signs of thrombophlebitis were found in 2.2%. Thrombophlebitis after injection can be prevented effectively and safely using fat emulsion as a solvent for diazepam.

Adolescent↗

Effect of diluting propofol on the incidence of pain on injection and venous sequelae.

The effect of diluting propofol in 5% dextrose on the incidence of i.v. injection pain was studied in 100 adult patients. Severe injection pain occurred in 32% (16 patients) who received undiluted propofol, compared with 10% (five patients) who received dilute propofol. We concluded that the dilution of propofol significantly reduced the incidence of severe pain during injection without increasing postoperative venous sequelae.

Adult↗

Effectiveness and sequelae of very low-dose suxamethonium for nasal intubation.

We have studied the effectiveness and sequelae of low-dose suxamethonium in 60 day-case oral surgery patients requiring nasal intubation. Anaesthesia was induced with propofol and alfentanil; 60 patients were allocated randomly to three groups of 20 patients and received no suxamethonium, suxamethonium 0.25 mg kg-1 or 0.5 mg kg-1. All patients received i.v. fentanyl and diclofenac 100 mg rectally for analgesia. Good intubating conditions were produced in all 20 patients receiving suxamethonium 0.25 mg kg-1, in 19 patients receiving suxamethonium 0.5 mg kg-1 and in 11 patients not receiving a neuromuscular blocker. The incidence of postoperative myalgia after suxamethonium 0.25 mg kg-1 (20%) did not differ significantly from the incidence after propofol and alfentanil alone (28%).

Adolescent↗

Pneumonia due to viral and atypical organisms and their sequelae.

Most children presenting with pneumonia in the industrialised world will have a viral or 'atypical' organism. The clinical features of these 'atypical' pneumonias may be indistinguishable from bacterial pneumonia. New diagnostic techniques such as the polymerase chain reaction may help in diagnosis and choice of treatment, where appropriate. The pathological and clinical features of infection with each agent are discussed, together with their sequelae.

Adenoviridae Infections↗

Global attentional-executive sequelae following surgical lesions to globus pallidus interna.

It has been demonstrated that selective unilateral surgical ablation of posteroventral globus pallidus interna relieves the movement disorders associated with advanced Parkinson's disease, without necessarily incurring the executive cognitive sequelae that have been observed following gross pathological lesions to this brain region. This finding is consistent with established theory that underlying neuronal circuitry is functionally segregated into parallel cortico-striatal-pallidal-thalamo-cortical 'loops'. We have studied a series of 12 patients with advanced Parkinson's disease at baseline, and then following bilateral pallidotomy, with a battery of neuropsychological tests including the Cambridge Neuro psychological Test Automated Battery. We identified a selective and universal loss of individual patients' ability to shift attention to novel dimensions in a test of abstract rule-learning following surgery, which was not reliably associated with any other change in cognition, personality, mood or medication. This finding is rare in its specificity and has implications for theoretical models of the functional architecture and pathophysiology of the globus pallidus, and the clinical practice of pallidotomy.

Adult↗

Candida tropicalis vertebral osteomyelitis: a late sequela of fungemia.

Two adult patients who had undergone bone marrow transplantation had transient fungemia due to Candida tropicalis during the posttransplantation neutropenic period and later (at 5 and 14 months post-transplantation) developed vertebral osteomyelitis due to the same organism. The courses of all adult patients who underwent bone marrow transplantation at our center during this time were reviewed for determining the frequency of this problem. Molecular typing techniques were used to establish the relationship between the organisms isolated during the initial fungemia and those causing the subsequent osteomyelitis. Only two of 532 adults who received transplants at our center from 1980 to 1993 developed candidal osteomyelitis. Moreover, they are part of a subset of 13 patients (2.4% of the total) whose cultures were positive for C. tropicalis; five of the 13 had fungemia. The study of fungal isolates from prior sites of colonization and from blood sampled during the original fungemia and of subsequently recovered vertebral bone isolates by means of DNA restriction fragment analysis (with use of standard agarose gel electrophoresis or pulsed-field gel electrophoresis) showed that the colonizing, bloodstream, and bone isolates were identical in each case. Transient C. tropicalis fungemia in severely immunocompromised patients may cause important late infectious complications, including osteomyelitis. Although these initial septic events may appear to resolve easily, the outcome in the two cases in this report suggests that special treatment considerations, such as immediate removal of the central venous catheter and intensive treatment with amphotericin B, may be required in selected cases for prevention of late sequelae.

Adult↗