PubMed · 15984624
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Jeffrey M Weinberg. 2005. "Counter" intuitive.. https://pubmed.ncbi.nlm.nih.gov/15984624/
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Acquired inhibitors of coagulation factors, particularly to factor V (FV) and thrombin, after topical bovine thrombin exposure may result in clinically important coagulopathies. While bovine thrombin is commonly used in pediatric patients for surgical hemostasis, the reported cases of acquired inhibitors in children are few. We report two cases of children who developed factor inhibitors after bovine thrombin exposure. One child developed a FV inhibitor at 3 months of age after exposure to bovine thrombin during cardiac surgery. The inhibitor resolved with intravenous immunoglobulin (IVIG) and steroids. The other child developed concomitant FV and bovine thrombin inhibitors after cardiac surgery at age 11 years. The presence of these inhibitors complicated post-operative anti-coagulation management, but the inhibitors were transient. In addition to these two cases, we identified all the pediatric patients with bovine thrombin-induced inhibitors who were reported in the world's literature, and reviewed their clinical characteristics. These cases underscore the fact that bovine thrombin can be antigenic in infants and children and can result in significant coagulopathies.
Erythema annulare centrifugum is an acute dermatosis of unclear etiology, which presents with annular erythematous lesions with marginal scale. Therapeutically, systemic and topical glucocorticosteroids are used primarily. We treated a patient with large lesions in the area of the thighs resistant to a therapy with topical glucocorticosteroids, with topical calcitriol in combination with 311 nm ultraviolet B narrow band phototherapy. After four weeks of treatment the skin lesions had cleared nearly completely without any side effects. The combination topical vitamin D3-analogue calcitriol and 311 nm ultraviolet B narrow band phototherapy was effective and can be regarded as a useful alternative to glucocorticosteroids for erythema annulare centrifugum.
BACKGROUND: Between 2 and 5% of patients undergoing pelvic radiotherapy develop chronic radiation proctopathy, occurring as a result of damage to the rectal mucosa during the treatment. Rectal bleeding of varying severity can occur as a consequence. There have been no formal trials of treatment for haemorrhagic radiation proctopathy and a variety of methods are currently used. AIM: In a retrospective study of 20 patients treated at a single centre, we assessed the efficacy of small volume topical formalin instillation to control bleeding from radiation proctopathy. METHOD: Patients were treated by a single operator using 20 mL of a 5% solution of formalin instilled into the rectum via a flexible sigmoidoscope for 3 min. Patients were followed up for an average of 22.7 months (range: 2-69). RESULTS: A single session of formalin treatment was effective in 13 of 20 (65%) patients and a further four (20%) patients responded to a second treatment. No complications of the treatment was identified. CONCLUSION: Small volume formalin instillation therapy appears to be safe and effective in the context of haemorrhagic radiation proctopathy. The technique is simple, inexpensive, quick and requires no sedation. We suggest that it should be considered as a first line for patients presenting with this distressing condition.