PubMed · 470582
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P Otto. 1979-07-27. [Proctology for general practice].. https://pubmed.ncbi.nlm.nih.gov/470582/
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This review describes the properties and side effects of Hyskon and the implications for the patient and anaesthetist during hysteroscopy. The amount of Hyskon absorbed is dependent on the injection pressure, the extent of tissue trauma, the seal of the hysteroscope around the cervix, and the duration of infusion. The mechanism of pulmonary oedema after absorbtion of Hyskon is fluid overload, and not injury to pulmonary capillary endothelium. The haematological effects are primarily due to haemodilution. However, case reports suggest that Dextran 70 may cause a syndrome resembling disseminated intravascular coagulation. The allergic response to Hyskon consists of both an anaphylactic and an anaphylactoid component. It is recommended that hysteroscopy with Hyskon be limited to 45 min, and that all possible measures be taken to minimize tissue trauma and bleeding. The volume of Hyskon should be limited to less than 500 ml, since pulmonary oedema and coagulopathy have been described with even lesser amounts. The cumulative volume of Hyskon should be monitored frequently and the patient should be closely monitored for signs of impending pulmonary oedema.
We report our experience of a recently described local anaesthetic technique which seeks to avoid risk of perforation of the globe, damage to the optic nerve, or injection into the subarachnoid space, whilst providing prolonged and reliable anaesthesia. A prospective series of 19 patients who underwent vitreoretinal surgery using this technique were compared with 19 patients who had retrobulbar anaesthesia for cataract extraction. The vitreoretinal group had excellent akinesia and very good anaesthesia, allowing prolonged retinal reattachment surgery lasting up to 3 hours. Patient evaluation of discomfort or pain experienced in the two groups was assessed using a visual analogue pain score chart. The pain scores for the two groups were not significantly different (p = 0.03) and 16 of 19 patients in each group (84%) experienced only slight pain or less. Satisfaction with local anaesthesia, in both groups, was also assessed by asking patients which method of anaesthesia they would prefer if future surgery were to be performed. In the vitreoretinal group, 18 of 19 patients expressed a preference for local anaesthesia and in the cataract group 17 ot 19 also favoured local anaesthesia. The vitreoretinal patients' median pain score was 0 compared with 1 for the cataract patients. This study demonstrates that local anaesthesia provides pain relief for vitreoretinal surgery which is comparable to the experience of patients undergoing cataract surgery by retrobulbar anaesthesia. The technique described can provide successful local anaesthesia for vitreoretinal procedures. The success of this technique for pain relief and akinesia calls for a reappraisal of the number of patients suitable for vitreoretinal surgery under local anaesthesia.
The afterloading contact therapy is an established method in the therapy strategies of extended gynecological malignancies. Unfortunately, the manipulations of application are painful in many cases. The results of the present paper suggests, that the pretherapeutic application of Lidocain (Xylocain) may decrease in pain symptomatic significantly. This findings have relevance for ambulant afterloading contact therapy.