Full-dose cisplatin chemotherapy combined with hemodialysis in a patient with impaired renal function and a mediastinal germ cell tumor.

Cisplatin is the first choice treatment in mediastinal germ cell tumors. However, concerns regarding increased toxicity of cisplatin hamper its administration in patients with impaired renal function. We describe a 42-year-old man with chronic kidney disease stage 4 who was diagnosed with a mediastinal germ cell tumor and metastases in lung and brain. Treatment with cisplatin-etoposide was considered essential for a chance of cure. In order to administer the full cisplatin dose, 4-hour hemodialysis sessions were performed after each cisplatin infusion. During treatment cycle 3, 4 and 5, total and unbound plasma platinum concentrations were measured. Trough concentrations and half-life were at the higher end of the range of those observed in patients with adequate renal function who received the same dose of cisplatin. Hemodialysis aided platinum clearance, although our patient was also able to clear some platinum by his own renal function. With this full dose treatment, our patient obtained a favorable tumor response, with a strong decrease of beta-human chorionic gonadotropin and tumor size. The side effects experienced by our patient were serious, although not worse than what could be expected with this type of treatment. His renal function remained stable during the treatment period.

A randomized trial of training the non-dominant upper extremity to enhance laparoscopic performance.

INTRODUCTION: In laparoscopy, the surgeon's dominant arm will execute difficult tasks with less effort compared to the non-dominant arm. This leads to a relative overuse of muscles on this side. We hypothesized that training the non-dominant arm would improve laparoscopic skills. MATERIAL AND METHODS: At baseline, all participants performed three validated tasks on a virtual reality simulator. After randomization, subjects in the intervention group were assigned training tasks. All these tasks had to be performed with the non-dominant hand. Within a week after a three-week study period, participants performed the same three tasks as before. RESULTS: Twenty-six participants were included, 13 in each group. At baseline, there were no differences between groups on all tested parameters. Compliance to training tasks was good. At the end of three weeks, subjects in both groups showed similar improvement of skills on the non-dominant side. On the dominant side, however, subjects in the training group showed significant better improvement of skills on four out of eight parameters. CONCLUSION: Specific training of the non-dominant upper extremity appears to lead to improvement of skills on the dominant side, a phenomenon known in literature as intermanual transfer of skill learning. To improve laparoscopic skills, bimanual training is recommended.

The operation room as a hostile environment for surgeons: physical complaints during and after laparoscopy.

Due to suboptimal ergonomic conditions during laparoscopic procedures, surgeons are exposed to physical strain on the upper extremity. The primary objective of this study was to assess the prevalence of physical complaints among laparoscopic surgeons and to assess the factors that influence these complaints. A questionnaire was distributed in a university hospital to all surgeons who perform laparoscopic procedures. Participants were asked to answer questions related to experience, physical complaints during or after laparoscopic procedures and the possible causes of their complaints. Fifty-five out of 92 (60%) surgeons completed the questionnaire. In this group, 40 surgeons (73%) reported physical complaints during or after laparoscopic procedures, mainly involving neck, lower back, shoulders and thumbs. Significantly more surgeons reported complaints in the dominant upper extremity compared to the non-dominant side. Poor table height adjustment, bad monitor positioning and suboptimal design of instrument handles were reported as important causes of complaints. Physical complaints of the dominant upper extremity are common among laparoscopic surgeons, especially less experienced surgeons. The dominant upper extremity appears to be more involved than the non-dominant side. More awareness and implementation of ergonomic guidelines is needed.