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    Marcelo Pimentel

    To assess the prevalence, onset, duration and severity of hot flashes in men after bilateral orchidectomy (BO) for prostate cancer, to evaluate body temperature changes during hot flashes and to determine whether an elevated temperature... more
    To assess the prevalence, onset, duration and severity of hot flashes in men after bilateral orchidectomy (BO) for prostate cancer, to evaluate body temperature changes during hot flashes and to determine whether an elevated temperature within a few days after BO can be caused by deprivation of androgen. Patients (n = 101) were questioned about the characteristics of their hot flashes after BO for prostate cancer. A subgroup of these men (n = 17) were instructed to record their oral and forehead temperatures during and at fixed intervals between hot flashes daily for 4 weeks. The mean age was 71.6 years, mean follow-up after BO was 33.2 months. Hot flashes were reported by 87 men (86%) with previous spontaneous remission in 9 (10%). The median time between BO and the onset of hot flashes was 21 days (range 1-730), median number of hot flashes 3 per day (range 1-20), and median duration was 120 seconds (range 5 to 1800). There was no significant difference between median oral (36.4(o) C) and forehead (36.0(o) C) temperature in the normal state, but during hot flashes the median forehead temperature (37.0(o) C) was higher than the oral temperature (36.5(o) C) (p = 0.0004). Both median oral and forehead temperatures were higher during hot flashes (36.5(o) C and 37.0(o) C) than in the normal state (36.4(o) C and 36.0(o) C, respectively) (p < 0.0001). During hot flashes, the oral temperature was 38(o) C to 40(o) C in only 3.2% of 593 readings in 17 patients. The median oral and forehead temperatures are higher during hot flashes than in normal periods. Oral temperature elevation > 38(o) C within days after a BO is unlikely to be the result of androgen deprivation alone.
    Recurrent priapism may lead to erectile dysfunction; its treatment is aimed at the prevention of new episodes. We report a case of idiopathic recurrent priapism in a 15-year-old patient. He was treated with oral baclofen, starting with a... more
    Recurrent priapism may lead to erectile dysfunction; its treatment is aimed at the prevention of new episodes. We report a case of idiopathic recurrent priapism in a 15-year-old patient. He was treated with oral baclofen, starting with a daily dose of 10mg that was increased to 30 mg to achieve control of symptoms. After a 6-month follow up, he reported no recurrence or side effects.
    Adjuvant antibiotic therapy for acute abdominal conditions is widely used. Its timing, duration, dose and spectrum, however, are not homogeneous amongst surgeons and prolonged courses are often used despite the unproven benefits of this... more
    Adjuvant antibiotic therapy for acute abdominal conditions is widely used. Its timing, duration, dose and spectrum, however, are not homogeneous amongst surgeons and prolonged courses are often used despite the unproven benefits of this practice. To evaluate use and compare duration of antibiotic treatments in acute abdominal surgery. Retrospective cohort study. The medical records of 290 patients who underwent operations for acute abdomen from July 1998 to July 1999 in a teaching hospital were reviewed. The pattern of antibiotic use and rates of postoperative complications were evaluated, along with surgical diagnosis, degree of contamination/infection, and incidence of postoperative complications. The patients were stratified according to the degree of contamination/infection noted during the operation. The study population was divided in two groups according to the duration of antibiotic use (cut-off point at the median antibiotic use in days, for each group of contamination/infection degree), and outcomes were compared. The degree of contamination/infection was significantly associated with an increased risk of wound infection, intra-abdominal abscess, postoperative infective complications and overall postoperative complications (p < 0.001). A long course of antibiotics was not associated with lower infective complication rates. Shorter courses of antibiotic therapy based on the degree of contamination/infection seem to be safe. A prospective study should confirm this hypothesis.
    ... Heloisa Guedes Müssnich I ; Luis Fernando Moreira II ; Pedro Gus III ; Marcelo Pimentel IV ; Tatiana Simon IV ; Marcelo Bellon Dos Santos IV. ... (20) encontraram pior sobrevida no grupo de idosos acima de 75 anos portadores de câncer... more
    ... Heloisa Guedes Müssnich I ; Luis Fernando Moreira II ; Pedro Gus III ; Marcelo Pimentel IV ; Tatiana Simon IV ; Marcelo Bellon Dos Santos IV. ... (20) encontraram pior sobrevida no grupo de idosos acima de 75 anos portadores de câncer colorretal, tendo relacionado o achado ao ...