Delayed appearance of hypaesthesia and paralysis after femoral nerve block

We report on a female patient who underwent an arthroscopy of the right knee and was given a continuous femoral nerve block catheter. The postoperative course was initially unremarkable, but when postoperative mobilisation was commenced, 18 hours after removal of the catheter, the patient noticed paralysis and hypaesthesia. Examination confirmed the diagnosis of femoral nerve dysfunction. Colour duplex sonography of the femoral artery and computed tomography of the lumbar spine and pelvis yielded no pathological findings. Overnight the neurological deficits decreased without therapy and were finally no longer detectable. We speculate that during the administration of the local anaesthetic a depot formed, localised in the medial femoral intermuscular septa, which was leaked after first mobilisation. To our knowledge no similar case has been published up to now. We conclude that patients who are treated with a nerve block should be informed and physician should be aware that delayed neurological deficits are possible.

Duplex sonography phlebologically accentuated

SummaryWithout any doubt colour duplex sonography was an enormous progress in angiological and/or phlebological diagnostics. Starting with the directional Doppler sonography, the large spectrum of phlebological diagnostics by colour duplex sonography is presented. Colour duplex sonography is used for a) the fundamental, morphologically and haemodynamically based diagnostics of deep vein thrombosis, of the insufficiency of subfascial and epifascial veins and for differential diagnostic delimitations (of arterial disorders, lip- and lymphedema, Baker-cysts, haematomas and so on), b) intrainterventional controls (steering of endovenous catheters and of foam sclerotherapy), c) the postinterventional assessment of results and disease course (definitively successful elimination of refluxes, relapses, complications as deep vein thrombosis and so on). Finally, the optimal position of the patient for duplex examination – supine or standing – is discussed, and methodical developments of the angiologic-phlebological diagnostics with ultrasound devices are described. Conclusion: In many cases duplexsonography avoids invasive examinations. It is part of the obligatory medical education in the field of phlebology.

Survival in second primary malignancies of patients with head and neck cancer

Second primary tumours occur frequently in patients with a history of head and neck malignancies. Delays in making an early and correct diagnosis can seriously affect the therapy management and survival.This was a retrospective study of 120 patients with a history of head and neck cancer, presenting with a second primary tumour. Current follow-up strategies and the use of routine sonographic imaging of the head and neck regions were evaluated, and the impact that tumour chronology, the tumour site and the various treatment modalities have on the survival were assessed. Forty-two per cent of patients developed a metachronous second malignancy more than five years after diagnosis of the index tumour. The accuracy of colour-duplex sonography in detection of second primaries in the head and neck was 82.3 per cent. First and second primary tumours located in the larynx were observed to have the highest five-year survival rate. Patients who developed metachronous tumours had a five-year survival rate of 68.9 per cent for the index tumours, and a 26 per cent five-year survival rate with the occurrence of a second neoplasm. With synchronous tumours a mean survival time of 18 months and a five-year survival rate of 11.9 per cent was found (p < 0.0001). Where clinically appropriate an aggressive treatment strategy was employed and yielded the most favourable results with a five-year survival rate of 66.8 per cent and 35.9 per cent for index tumours and second primary malignancies, respectively.Since more than 40 per cent of the metachronous second primaries in patients with a history of head and neck malignancy occur beyond the five-year follow-up period, an extended protocol with individually adjusted close monitoring of high-risk patients seems appropriate. Colour-duplex sonography is a valuable screening investigation for the early detection of second primary tumours. The treatment of a second primary is often less successful than for the same malignancy occurring primarily. The prognosis of synchronous tumours is significantly lower when compared to malignancies of a metachronous nature, despite some encouraging individual results. Only the early implementation of aggressive treatment methods for second primaries is successful in terms of survival.