Comparison of propofol and midazolam on patients undergoing spinal surgery with intraoperative wake-up test: randomized clinical trial / Comparação de propofol e midazolam em pacientes submetidos à cirurgia de coluna vertebral com teste de despertar no intraoperatório: estudo clínico randomizado

BACKGROUND AND OBJECTIVES: Instrumentation in correction operations for spinal deformities carries a 0.5-5% risk of injuring the spinal cord. The wake-up test is used for early detection of these injuries. In this study we compared the effects of propofol and midazolam during wake-up test in scoliosis surgery. METHODS: Thirty patients were randomly assigned as group P and group M. Anesthesia was induced with propofol 2.5 mg kg-1 for group P or midazolam 0.5 mg kg-1 for group M with remifentanil 0.5 µg kg-1 and cisatracurium 0.15 mg kg-1 for both groups. At the maintenance of anesthesia O2/air and infusions of remifentanil and cisatracurium were used. In group P, propofol 6-10 mg kg-1 h-1 and in group M, midazolam 0.5 mg mg kg-1 were preferred. Approximately 15 min before the wake-up test, all drugs were discontinued. At the wake-up test, anesthesiologist asked the patients to open their eyes and squeeze his/her hand at every 30 s until the patients responded. Then patients were told to wiggle their toes. Hemodynamic parameters, time of eye-opening, appropriate movement upon verbal command were evaluated. BIS frequency throughout the operation was recorded. RESULTS: The eye opening time was 9 ± 2.15 min in group P and 7 ± 3.15 min in group M. Motor movement time was 12 ± 2.55 min in group P and 21.25 ± 3.93 min in group M. CONCLUSION: Propofol provided better wake-up conditions and conducted a better neurologic assessment within the same BIS values than midazolam.

JUSTIFICATIVA E OBJETIVOS: A instrumentação em cirurgias de correção de deformidades da coluna vertebral tem risco de 0,5 a 5% de lesionar a medula espinhal. O teste de despertar é usado para a detecção precoce dessas lesões. Neste estudo comparamos os efeitos de propofol e midazolam durante o teste de despertar em cirurgia de escoliose. MÉTODOS: Trinta pacientes foram designados de forma aleatória para os grupos P e M. A anestesia foi induzida com propofol (2,5 mg kg-1) no grupo P ou midazolam (0,5 mg kg-1) no grupo M, com remifentanil (0,5 µg kg-1) e cisatracúrio (0,15 mg kg-1) em ambos os grupos. A manutenção da anestesia foi feita com O2/ar e infusões de remifentanil e cisatracúrio. Nos grupos P e M, respectivamente, doses de propofol (6-10 mg kg-1 h-1) e de midazolam (0,5 mg mg kg-1) foram preferidas. Aproximadamente 15 min antes do teste de despertar, todos os medicamentos foram interrompidos. No teste de despertar, o anestesiologista pedia ao paciente que abrisse os olhos e apertasse sua mão a cada 30 s até que o paciente respondesse. Depois, o paciente era solicitado a mexer os dedos dos pés. Os parâmetros hemodinâmicos, o tempo de abertura dos olhos e o movimento apropriado sob comando verbal foram avaliados. A frequência do BIS foi registrada durante toda a cirurgia. RESULTADOS: O tempo de abertura dos olhos foi de 9 ± 2,15 min no grupo P e de 7 ± 3,15 min no grupo M. O tempo de movimento motor foi de 12 ± 2,55 min no grupo P e de 21,25 ± 3,93 min no grupo M. CONCLUSÃO: Propofol proporcionou melhores condições de despertar e possibilitou uma melhor avaliação neurológica dentro dos mesmos valores do BIS que midazolam.

Diagnosis of common mental disorders by using PRIME-MD Patient Health Questionnaire.

BACKGROUND & OBJECTIVE: Primary care physicians in their clinical settings usually fail to diagnose common mental disorders (CMDs). Primary Care Evaluation of Mental Disorders (PRIME-MD) Patient Health Questionnaire (PHQ) has been shown to facilitate diagnosis of most CMDs seen in primary health care. Its utility in Indian setting has not been evaluated. We carried out this study in Indian setting to evaluate the extent of psychiatric morbidity as measured by PRIME-MD PHQ. METHODS: A total of 500 consenting patients attending Medical outpatient department were recruited. All subjects were first assessed by the physician for presence of any physical illness and psychiatric disorder and their socio-demographic data were collected. Subjects were asked to fill the PRIMEMD PHQ. Illiterate subjects were assisted by the research worker in filling up the questionnaire. RESULTS: At initial evaluation physicians opined that 30.4 per cent of the subjects had psychological disorder, the most common diagnostic category was of anxiety disorders (15.8%), followed by depression (6%) and somatoform disorders (5.6%). On PHQ 42 per cent subjects had at least one psychiatric diagnosis. The most common psychiatric diagnosis was panic disorder (18.4%), followed by other anxiety disorders (16.6%). On comparing the diagnosis of physicians and PHQ, out of 152 cases (30.4%) suspected to have any psychological disorder by the physicians in the initial evaluation, 105 were found to have PHQ diagnosis. Of the 348 cases in which physicians did not suspect any psychiatric diagnosis, 243 were also negative in PHQ screening. There was a significant correlation between physicians and PHQ diagnosis. INTERPRETATION & CONCLUSION: There is a high psychiatric morbidity in the general medical practice and in many cases psychiatric morbidity is either missed or is misdiagnosed and by the physicians. Our results showed that PHQ could be a valuable screening instrument for psychiatric morbidity in primary care and general medical practice.

Estudio social de pacientes psiquiátricos adultos: desarrollo de un instrumento de registro / Social study adult psychiatric patients: development of a record instrument

La necesidad de contar con instrumentos de evaluación y diagnóstico de la realidad sociofamiliar de pacientes psiquiátricos llevó a la autora al desarrollo de uno, para familiares de pacientes hospitalizados. Inicialmente diseño un formato que fue consultado a colegas de su especilidad para lograr una versión final. Luego, procedió a la Prueba de Jueces con profesionales de diferentes disciplinas de la salud mental. Los resultados muestran que es un instrumento válido para los objetivos de la evaluación social del paciente.

The need to account with an instrument for evaluation and diagnosis of sociofamiliar reality of psychiatric patients motivated the author to design one, especially for families of hospitalized patients. Firstly, a format was designed which was consulted with colleagues of her specialty in order to account with a final version. Then, professional of different specialties acted as Experts. The results show that the instrument is valid for the purposes for which it was developed.