Randomized clinical trial of non-mesh versus mesh repair of primary inguinal hernia.

BACKGROUND: The optimum method for inguinal hernia repair has not yet been determined. The recurrence rate for non-mesh methods varies between 0.2 and 33 per cent. The value of tension-free repair with prosthetic mesh remains to be confirmed. The aim of this study was to compare mesh and non-mesh suture repair of primary inguinal hernias with respect to clinical outcome, quality of life and cost in a multicentre randomized trial in general hospitals. METHODS: Between September 1993 and January 1996, all patients scheduled for repair of a unilateral primary inguinal hernia were randomized to non-mesh or mesh repair. The patients were followed up at 1 week and at 1, 6, 12, 18, 24 and 36 months. Clinical outcome, quality of life and costs were registered. RESULTS: Three hundred patients were randomized of whom 11 were excluded. Three-year recurrence rates differed significantly: 7 per cent for non-mesh repair (n = 143) and 1 per cent for mesh repair (n = 146) (P = 0.009). There were no differences in clinical variables, quality of life and costs. CONCLUSION: Mesh repair of primary inguinal hernia repair is superior to non-mesh repair with regard to hernia recurrence and is cost-effective. Postoperative complications, pain and quality of life did not differ between groups.

In vitro resistance to cytosine arabinoside, not to daunorubicin, is associated with the risk of relapse in de novo acute myeloid leukaemia.

The efficacy of chemotherapy in acute myeloid leukaemia (AML) is limited by clinical drug resistance. We determined in vitro resistance to cytosine arabinoside (ARAC), daunorubicin (DNR), mitoxantrone (MITOX), m-amsacrine (AMSA) and etoposide (VP16) in 49 adults with de novo AML using the MTT assay. Results showed that nonresponders to chemotherapy were, in vitro, 2.9-fold more resistant to DNR, but not more resistant to ARA-C, compared to complete responders. However, complete responders who were in vitro resistant to ARA-C had a 4-fold higher risk of relapse (95% CI 1.3-12.5-fold) compared to complete responders in vitro sensitive to ARA-C. With a mean follow-up of 12 months the probability of continuous complete remission (CCR) for patients in vitro sensitive to ARA-C was 61% at 34 months (95% CI 28-82%), whereas all patients in vitro resistant to ARA-C relapsed within 18 months from diagnosis. This difference appeared to be independent of other clinical features such as sex, age, white blood cell count, FAB classification, and CD34 expression. In vitro resistance to DNR was not related to the probability of CCR. We conclude that in vitro drug resistance assessed with the MTT assay appears to be associated with short- and long-term clinical outcome in AML. Confirmatory studies comprising a sufficient number of patients for multivariate analyses should prove whether in vitro resistance to ARA-C will appear to be an independent risk factor.

Immediate versus delayed shoulder exercises after axillary lymph node dissection.

A total of 144 evaluable patients with breast cancer were enrolled in a multicenter, randomized, prospective study to establish the role of delayed shoulder exercises on wound drainage and shoulder function after axillary lymph node dissection. Patients in group 1 (n = 78) started active shoulder exercises 1 day postoperatively. Patients in group 2 (n = 66) started on the eight postoperative day, following 1 week of immobilization of the arm. Patients in group 2 had 14% less wound drainage volume than those in group 1 (600 +/- 436 mL versus 701 +/- 398 mL); this difference, however, was not significant. Also, no differences could be established between the two groups when duration and volume of wound drainage, number and volume of seroma aspirations, wound complication rates, and shoulder function were compared 6 months after surgery.

Aneurysm of the pancreaticoduodenal artery. A case report.

A case of an aneurysm of the pancreaticoduodenal artery is reported, together with a short review of the literature relating to this condition Because of its rarity the diagnosis is often overlooked even when typical changes are found on X-ray. The possible relationship between obstructive jaundice and aneurysms in the vicinity of the galltree is discussed. Surgical treatment is recommended by most authors once the diagnosis of an intra-abdominal aneurysm has been made, mainly because of the risk of rupture.