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C J Campos

Publications and source records attributed to C J Campos.

13 recordsLinked to original sources
PubMed2001

Effect of lateralized epileptic discharges on the thought flow.

PURPOSE: Pauses in verbal expression of thought flow in patients with partial epilepsy was studied in order to achieve a best comprehension of brain interhemispheric influences. METHOD: We studied thirty nine patients with partial epileptic seizures and twenty four volunteers (control group). Free association of ideas was used as a method to establish the thought flow, starting with a stimulus word (subject name) that must be followed by spontaneous and consecutive word-phrase. Patients were instructed to say any thought that came to their minds without any kind of censoring. Subject responses were recorded through a PC keyboard and time intervals (pauses) between each word-phrase were processed by a software developed for this purpose. RESULTS: Time intervals reduction among associations in right lesional group were compared to left lesional, right non-lesional and control groups. An increase of associative time intervals was observed in the right non-lesional group compared to left non-lesional group. CONCLUSIONS: We suggest a possible inhibitory inter-hemispheric function of the right hemisphere modulating verbal expression of the thought flow. Considering the hypothesis of the inter-hemispheric inhibition by the right hemisphere on left hemisphere, we admit that in epileptic patients with right hemispheric lesion there is an attenuation of the inter-hemispheric inhibition and an increase in thought flow, whereas in patients without a lesion but a paroxysmal epileptic activity in right temporal lobe there is an exacerbation of this inhibitory function and consequent reduction in the thought flow.

Adolescent↗
PubMed2001

[Eletroencephalographic ambulatory monitoring in refractory epilepsies in childhood].

The objective of our study was, by means of continuous prolonged ambulatory electroencephalographic monitoring, to analyze the temporal distribution of paroxysmal discharges during sleep and awake in children and adolescents with refractory epilepsies. Twenty-one patients in the 4-to-17 year age bracket with refractory epilepsies, with 52.3% (n=11) male and 47.6% (n=10) female from the Discipline of Neurology of the Universidade Federal de São Paulo (Federal University of São Paulo). Cerebral Holter was carried out with Bioware EEG-2008 of prolonged ambulatory electroencephalographic monitoring equipment. We observed greater frequency of isolated and grouped epileptic discharges in day and in night sleep in relation to awake; day and night sleep led to activation of epileptic discharges, both isolated and grouped. The cerebral Holter was more effective in detecting epileptiform discharges than the routine EEG in 33.33% of the patients. The cerebral Holter proved a useful and precise method in detecting epileptic discharges, as an aid in the assessment of the fluctuations in frequency of paroxysmal activity in children with refractory epilepsies, both in relation to activities in daily life, and to the relation to the biological cycle of sleep and awake.

Adolescent↗
PubMed2001

[Caring of the mental patient in the emergency room: feelings and attitudes of the nursing team members].

This work is based upon a day-by-day study of the services provide by a nurse team at a mentally impaired emergency room. Our aim is to study staff's reactions toward the patients as well as service itself. We could feel the dynamic relation among thinking, feeling and performance created strong conceptions on individuals based upon a common sense. The feelings noticed are: pity, scare and rage depending upon behavior. The assistance given to the mentally impaired is, at large, based exclusively on technical data resorted to organic/biological aspects.

Attitude↗
PubMed2000

The effects of transesophageal echocardiography on hemodynamic variables in small infants undergoing cardiac surgery.

OBJECTIVE: To assess the effects of transesophageal echocardiography (TEE) on hemodynamic variables during cardiac surgery in small infants. DESIGN: A prospective clinical study. SETTING: A medical college-affiliated tertiary care children's hospital. PARTICIPANTS: Twenty-three infants weighing 2 to 5 kg undergoing cardiac surgery. INTERVENTIONS: Baseline heart rate, arterial pressure, and central venous pressure were recorded. A pediatric TEE probe was inserted, and the hemodynamic variables were again recorded. Postoperatively the hemodynamic measurements were measured again before and after probe removal, with the addition of left atrial pressure and pulmonary artery pressure when available. Hemodynamic parameters were carefully observed during all phases of the TEE examinations for any changes attributable to probe manipulation. MEASUREMENTS AND MAIN RESULTS: No statistically significant changes occurred in this group of patients during TEE. No clinically significant changes in any individual patient occurred during the measurement or during manipulation of the TEE probe for the complete examination. CONCLUSION: Although hemodynamic compromise can occur in small infants, this study suggests that it is infrequent. Fear of hemodynamic compromise should not prevent use of intraoperative TEE in small infants when otherwise indicated.

Cardiac Surgical Procedures↗
PubMed2000

The effect of transesophageal echocardiography on ventilation in small infants undergoing cardiac surgery.

UNLABELLED: Transesophageal echocardiography (TEE) is frequently used during congenital cardiac surgery. Complications are infrequent, but interference with ventilation has been reported, especially in small infants. Ventilation variables were measured prospectively in 22 infants, 2-5 kg, undergoing heart surgery with TEE. Measurements were made preoperatively before and after TEE probe insertion and postoperatively before and after TEE probe removal. The variables measured included arterial blood gases, expired tidal volume, peak inspiratory pressure, positive end-expiratory pressure, minute ventilation, airway resistance, dynamic compliance, and peak inspiratory and expiratory flow rates. No significant change in any ventilatory variable at either time period was noted in the infants. IMPLICATIONS: Ventilatory compromise is infrequent in small infants undergoing transesophageal echocardiography (TEE) examination. Careful ventilatory monitoring rapidly detects changes in ventilation during TEE examination. Small infants who benefit from TEE during heart surgery should not be excluded from receiving a TEE examination because of concern of ventilatory compromise.

Cardiac Surgical Procedures↗
PubMed2000

Comparison of NAD 6000 and servo 900C ventilators in an infant lung model.

UNLABELLED: We compared the ability of the NAD 6000 (North American Dräger, Telford, PA) and the Servo 900C (Siemens-Elema AB, Solna, Sweden) anesthesia ventilators to maintain precise delivery of small tidal volumes (V(t)) and positive end-expiratory pressure using an infant test lung model. A variety of ventilator and lung model settings were selected to test clinical conditions simulating normal and extremely compromised lung function. Differences in ventilator output were analyzed by using an independent t-test with P <0.05 considered significant. With the ventilators set to deliver a V(t) of 30 mL, the actual delivered V(t) was significantly better for the NAD 6000 (25 +/- 2 mL) compared with the Servo 900C (18 +/- 3 mL), P <0.001. When the ventilators were set to deliver 100 mL V(t), their delivered V(t) were not significantly different, NAD 6000 (66 +/- 19 mL) and Servo 900C (60 +/- 12 mL), P = 0.09. The exhaled V(t) read by the anesthesia machines was significantly closer to the delivered V(t) for the NAD 6000 (11 +/- 9 mL) compared with the Servo 900C (37 +/- 11 mL), P < 0.001. Both ventilators maintained the end expiratory pressure delivered to the test lung within 2 cm H(2)O of the set positive end-expiratory pressure on average. As the conditions changed requiring the ventilator to develop a higher peak inflating pressure, both ventilators showed a decrease in V(t) delivered, which was proportionate to the tubing compression volume loss. IMPLICATIONS: The NAD 6000 (North American Dräger, Telford, PA) and Servo 900C (Siemens-Elema AB, Solna, Sweden) are able to precisely deliver small Tidal Volumes. They both decreased in performance when tested under extreme conditions. Earlier studies of traditional anesthesia ventilators suggest that the NAD 6000 and Servo 900C are superior pediatric ventilators.

Air Pressure↗
PubMed1999

A controlled study of transesophageal echocardiography to guide central venous catheter placement in congenital heart surgery patients.

UNLABELLED: Transesophageal echocardiography (TEE) and central venous catheter (CVC) placement are often used during congenital cardiac surgery. Complications of CVC placement include cardiac perforation, inadvertent arterial placement, and erroneous hemodynamic data from unrecognized malposition. In this study, we used a prospective, randomized, controlled design to evaluate the use of TEE to guide depth of insertion and confirm superior vena cava cannulation, and to improve the percentage of correctly placed CVCs and reduce complications of CVC placement. One hundred forty-five patients were studied. Eighty patients were randomized to have subclavian vein insertion, 64 to have internal jugular insertion, and 1 to have external jugular insertion of CVC. TEE-guided CVC placement resulted in 100% correct placement when assessed by preoperative TEE, versus 86% in the control group (72 of 72 vs. 63 of 73; P = 0.01). There was no difference in correct placement between the two groups when assessed by postoperative chest radiograph (81.9% TEE versus 75.3% control; P = not significant). One significant complication, a superior vena cava perforation, occurred in the control group. Time to placement was 9.6 min in the TEE group versus 8.0 min in the control group (P = 0.015). IMPLICATIONS: Transesophageal echocardiography can be used to guide central venous catheter placement in congenital heart surgery. Central venous catheters that seem to be located high in the right atrium by chest radiograph in these patients are often actually in the superior vena cava and pose little risk of cardiac perforation.

Adolescent↗
PubMed1997

[Patients' and relatives' opinion and knowledge about electroconvulsive therapy: implications for nursing].

The aim of this report was to verify in-patients and their relative's opinion and knowledge of the use of electroconvulsive therapy. By means of a quantitative analysis, the use of this treatment was shown to be accepted despite the individuals knew little about it. It was observed that the knowledge of this treatment had influence over individual's opinion about it. Thus nurses play an important role on the instruction of these individuals regarding this treatment.

Adult↗
PubMed1981

Effect of brain serotonin level on induced hippocampal paroxysmal activity in rats.

Experiments were performed to study the involvement of brain 5-HT in an experimental model of epilepsy induced by repeated electrical stimulation of the dorsal hippocampus of rats. The experiments included: (1) systemic injections of 5-hydroxytryptophan (5-HTP) and p-chlorophenylalanine (pCPA) and (2) electrolytic lesions of the midbrain raphe nuclei. The pCPA group showed a significant increase while animals which received systemic injections of 5-HTP showed a great reduction in the electrographic seizure activity. Although several reports have shown that midbrain raphe lesions do not modify the epileptic susceptibility, we observed a clear enhancement in the epileptiform activity in lesioned animals. The results presented here support the view that serotonergic systems may exert a tonic inhibitory effect on hippocampal epileptic activity.

5-Hydroxytryptophan↗
PubMedDate not supplied

Dreams and epilepsy.

The relationship between dreams and epilepsy is illustrated by two patients whose awake epileptic seizures and recurrent dreams during night sleep had similar content. In both of our cases the EEG showed right anterior temporal spike discharge, suggesting a role for the temporal lobe in the association between dreams and seizures.

Dreams↗