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Biomedical subjects

K Flechsenhar

Publications and source records attributed to K Flechsenhar.

5 recordsLinked to original sources

Peripheral primitive neuroectodermal tumor: challenge for multimodal treatment.

The primitive neuroectodermal tumor (PNET) is an extremely aggressive soft tissue neoplasm that occurs in children and adolescents. We retrospectively reviewed our therapeutic experience with a multidisciplinary approach, combining surgery, chemotherapy, and radiation therapy. Treatment of PNET was carried out in compliance with the soft tissue protocol (CWS) from the German Society of Pediatric Oncology. Biopsy-proven diagnosis was followed by chemotherapy, which in all cases led to partial remission, allowing excision of the remainder of the tumor without mutilation. After excision, irradiation of the tumor site and two further sequences of chemotherapy were performed. When PNET of the paravertebral region caused symptoms of paralysis and immediate surgery was required, postoperative chemotherapy, a second-look operation, and irradiation were undertaken. Between 1986 and 1998 we treated 13 patients (median age 15 years). In five patients the PNET originated from the chest wall and in eight patients from the paravertebral and retroperitoneal region. Five patients died after 20 months on average, and the remaining eight patients are in full remission after 7, 16, 46, 55, 70, 74, 75, and 115 months, respectively. Close cooperation between surgeons and their pediatric and radiotherapy colleagues is obligatory when treating PNET. Chemotherapy as the first stage is mandatory to avoid a mutilating surgical procedure and intraoperative tumor cell dissemination.

Adolescent↗

[Value of locoregional chemotherapy in liver metastases of breast carcinoma].

Between 1985 and 1997, we performed a locoregional chemotherapy in 59 patients suffering from non-resectable liver metastases of breast cancer. 36 of them only had liver metastases, in 23 patients liver metastases were combined with extrahepatic tumor spread. Furthermore, in 7 patients locoregional chemotherapy was used as a adjuvant regimen after metastasectomy. The average age of our patients was 52 (32-81) years. In most of our patients, a cytostatic scheme of mitoxantron, 5-fluorouracil and doxorubicin or a scheme of vincristin, mitomycin and mitoxantron was administered. The median survival of all patients was 11 months, in the patients with no additional extrahepatic tumor spread it was 16, in the patients with extrahepatic metastases 3 months, respectively.

Adult↗

[Persistent chylothorax after fracture of the 12th thoracic vertebrae].

We report on a patient who suffered chylothorax 2 months after she had undergone internal fixation of a fracture of her 12th thoracic vertebral body. The pleural effusion was treated by insertion of a chest tube. The chylothorax was managed conservatively. The patient received protein-rich nutrition supplemented with medium-chain triglycerides. As the volume of chylous fluid drained from the pleura had not decreased after 2 weeks, the patient received total parenteral nutrition without any oral intake of calories. Chest X-rays documented the disappearance of the chylothorax. Reexpansion of the lungs was noted, and the costophrenic sinuses could be clearly visualised.

Chest Tubes↗

Treatment of ruptures of the symphysis and iliosacral joint in pediatric patients.

The three osseous parts of the human pelvis form a continuous structure because of the symphysis and both iliosacral joints that-owing to their mobility-make possible a shock-absorption of vertical forces. The goal in the treatment of ruptures of the symphysis and/or of the sacroiliac joints is the restoration of functioning joints. Especially in the adolescent, a stiffening of these joints has to be avoided. Therefore, we treat ruptures of the pelvic joints with an overbridging banding that preserves the function of shock absorption. Due to utilisation of a banding, made up of polydioxanone, another operation to remove internal fixation material is not necessary. Rupture of the symphysis or iliosacral joint in the pediatric patient is very rare. Only three among the 67 patients whom we operated on because of a rupture of the symphysis or iliosacral joints between 1984 and 1990 were children. These were an eleven-year-old girl and a nine-year-old boy, who had suffered a rupture of the symphysis, and an eight-year-old boy with a disrupted iliosacral joint. In these children a banding with PDS suture was performed. At a follow-up examination, the children were free from pain and did not feel restricted in their daily routine or their physical activities.

Child↗