MARCELO DE LIMA OLIVEIRA
Projetos de Pesquisa
Unidades Organizacionais
LIM/26 - Laboratório de Pesquisa em Cirurgia Experimental, Hospital das Clínicas, Faculdade de Medicina
5 resultados
Resultados de Busca
Agora exibindo 1 - 5 de 5
- Surgical technique of retrograde ventricle-sinus shunt is an option for the treatment of hydrocephalus in infants after surgical repair of myelomeningocele(2015) OLIVEIRA, Matheus Fernandes de; TEIXEIRA, Manoel Jacobsen; NORREMOSE, Karen Andrade; MATUSHITA, Hamilton; OLIVEIRA, Marcelo de Lima; SHU, Edson Bor Seng; PINTO, Fernando Campos GomesIntroduction: Treatment of hydrocephalus is accomplished primarily through a ventricular-peritoneal shunt (VPS). This study aims to describe the application of retrograde ventricle-sinus shunt (RVSS) in patients with hydrocephalus after surgical treatment of myelomeningocele. Method: A prospective, randomized and controlled pilot study. We consecutively enrolled 9 patients with hydrocephalus after surgical repair of myelomeningocele from January 2010 to January 2012. These patients underwent elective RVSS or VPS. Five underwent RVSS and 4 underwent VPS. Patients were followed for one year with quarterly evaluations and application of transcranial Doppler. Results: RVSS group showed outcomes similar to those of VPS group. Doppler revealed significant improvement when comparing preoperative to postoperative period. RVSS group had significantly higher cephalic perimeter than VPS group. Neuropsychomotor development, complications and subjective outcomes did not differ between groups. Conclusion: RVSS shunt is viable; it is an alternative option for the treatment of hydrocephalus.
bookPart Doppler Transcraniano no Monitoramento do Paciente com Traumatismo Cranioencefálico(2015) BOR-SENG-SHU, Edson; OLIVEIRA, Marcelo de Lima- Embolic Signals during Routine Transcranial Doppler Ultrasonography in Aneurysmal Subarachnoid Hemorrhage(2015) PASCHOAL JR., Fernando Mendes; RONCONI, Karla de Almeida Lins; OLIVEIRA, Marcelo de Lima; NOGUEIRA, Ricardo de Carvalho; PASCHOAL, Eric Homero Albuquerque; TEIXEIRA, Manoel Jacobsen; FIGUEIREDO, Eberval Gadelha; BOR-SENG-SHU, EdsonIntroduction. Cerebral emboli may occur in subarachnoid hemorrhage (SAH) and intracranial aneurysm surgery. Although embolic signs (ES) have been reported in SAH, their origin remains unclear. The aim of this study was to report the detection of ES during routine TCD monitoring in patients with aneurysmal SAH. Methods. A total of 105 patients with aneurysmal SAH were submitted to TCD evaluation. Patients were monitored almost daily (5 times per week). In each monitoring session, one experienced operator performed TCD to detect or assess vasospasm and ES in arteries of the Willis polygon. Results. Four patients out of a total of 105 patients with aneurysmal SAH were found to present spontaneous cerebral embolization during routine TCD monitoring. The average age of the 4 patients (mean +/- standard deviation) was 59.5 +/- 8.34 years (range 49-68 ys); female patients predominated representing 75%(3/4) of subjects. Conclusion. Although detection of ES was relatively rare in this study, rates of emboli occurrence may be higher under systematic monitoring. The detection of ES after SAH surgery reinforces the need to study the role of embolus in this condition and may be an indicator for prophylactic antithrombotic treatment.
- Encephalic hemodynamic phases in subarachnoid hemorrhage: how to improve the protective effect in patient prognoses(2015) OLIVEIRA, Marcelo de Lima; AZEVEDO, Daniel Silva de; AZEVEDO, Milena Krajnyk de; NOGUEIRA, Ricardo de Carvalho; TEIXEIRA, Manoel Jacobsen; BOR-SENG-SHU, EdsonSubarachnoid hemorrhage is frequently associated with poor prognoses. Three different hemodynamic phases were identified during subarachnoid hemorrhage: oligemia, hyperemia, and vasospasm. Each phase is associated with brain metabolic changes. In this review, we correlated the hemodynamic phases with brain metabolism and potential treatment options in the hopes of improving patient prognoses.
- Using Contrast-Enhanced Ultrasound for Brain Tumor Surgery(2015) OLIVEIRA, Marcelo de Lima; PICARELLI, Helder; MENEZES, Marcos R.; TEIXEIRA, Manoel J.; BOR-SENG-SHU, Edson