In renal transplant recipients the risk of infections and lymphoma increases with increasing immunosuppression and hence mortality and morbidity associated with it. When adding a potent immunosuppressive agent to rescue a kidney one needs to consider the serious and at times fatal side effects given the modest beneficial effect on long-term outcome.

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Infections are an important cause of mortality and morbidity in renal transplant recipients. To study the impact of anti-rejection therapy on the timing of infections, the records of 599 consecutive renal transplants, performed prior to 31 December 1996 at the Royal Melbourne Hospital, were reviewed. Patients were grouped according to acute rejection (AR) episode and treatment during the first 6 months after transplantation. Group 1 [n = 168 (35%)] patients did not experience any episode of AR. Group 2 [n = 169 (35%)] patients had one or more episodes of AR and received high doses of steroids. Group 3 [n = 141 (30%)] patients had more than one episode of AR and received anti-lymphocyte antibodies in addition to high doses of steroids. Infections were more common in Groups 2 and 3 but only cytomegalovirus (CMV) disease occurred earlier in patients treated with lympholytics. Given the high incidence and early onset of CMV disease in patients receiving lympholytics and considering that an effective prophylactic protocol remains undetermined, pre-emptive treatment with ganciclovir in this high risk group appears justified.

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A 52-year-old man with known hereditary angio-oedema (HAE) presented with a 2-day history of progressive severe abdominal pain, distension, nausea, vomiting and constipation. CT of his abdomen and pelvis showed small-bowel obstruction and ascites. HAE is a rare autosomal dominant disorder caused by a C1 esterase deficiency and involves episodic oedema of subcutaneous and mucosal tissues. It commonly affects the face and limbs, causing deformity; the respiratory tract, causing life-threatening laryngeal swelling; and the gastrointestinal tract, causing small-bowel obstruction. An infusion of a C1 esterase inhibitor was given to the patient. His symptoms resolved within 6 hours, and a repeat CT showed complete resolution 24 hours later. Small-bowel obstruction in HAE is often misdiagnosed, leading to ineffective treatment and unnecessary surgery. Therefore, this should be suspected in patients with HAE presenting with an acute abdomen, and clinicians should understand the unique treatment required.