(1/6161) Reconstruction for chronic dysfunction of ileoanal pouches.
OBJECTIVE: A retrospective review was performed to determine the results after surgical reconstruction for chronic dysfunction of ileal pouch-anal procedures for ulcerative colitis and familial colonic polyposis at a university medical center. METHODS: During the 20-year period from 1978 to 1998, 601 patients underwent colectomy and ileal pouch-anal anastomosis (IPAA) for ulcerative colitis, familial colonic polyposis, or Hirschsprung's disease. A J pouch was used for 351 patients, a lateral pouch for 221, an S pouch for 6, and a straight pull-through for 23. Acute complications after pouch construction have been detailed in previous publications and are not included in this study. Chronic pouch stasis with diarrhea, frequency, urgency, and soiling gradually became more severe in 164 patients (27.3%), associated with pouch enlargement, an elongated efferent limb, and obstruction to pouch outflow, largely related to the pouch configuration used during the authors' early clinical experience. These patients were sufficiently symptomatic to be considered for reconstruction (mean 68 months after IPAA). Transanal resection of an elongated IPAA spout was performed on 58 patients; abdominoperineal mobilization of the pouch with resection and tapering of the lower end (AP reconstruction) and ileoanal anastomosis on 83; pouch removal and new pouch construction on 7; and conversion of a straight pull-through to a pouch on 16. RESULTS: Good long-term results (mean 7.7 years) with improvement in symptoms occurred in 98% of transanal resections, 91.5% of AP reconstructions, 86% of new pouch constructions, and 100% of conversions of a straight pull-through to a pouch. The average number of bowel movements per 24 hours at 6 months was 4.8. Complications occurred in 11.6% of reconstructed patients. Five of the 164 patients (3.1%) required eventual pouch removal and permanent ileostomy. The high rate of pouch revision in this series of patients undergoing IPAA is due to a policy of aggressive correction when patients do not experience an optimal functional result, or have a progressive worsening of their status. CONCLUSIONS: Although occasionally a major undertaking, reconstruction of ileoanal pouches with progressive dysfunction due to large size or a long efferent limb has resulted in marked improvement in intestinal function in >93% of patients and has reduced the need for late pouch removal. (+info)
(2/6161) A prospective, randomized trial of tacrolimus/prednisone versus tacrolimus/prednisone/mycophenolate mofetil in renal transplant recipients.
BACKGROUND: Between September 20, 1995 and September 20, 1997, 208 adult patients undergoing renal transplantation were randomized to receive tacrolimus/prednisone (n=106) or tacrolimus/prednisone/mycophenolate mofetil (n=102), with the goal of reducing the incidence of rejection. METHODS: The mean recipient age was 50.7+/-13.7 years. Sixty-three (30.3%) patients were 60 years of age or older at the time of transplantation. The mean donor age was 34.5+/-21.7 years. The mean cold ischemia time was 30.5+/-9.2 hr. The mean follow-up is 15+/-7 months. RESULTS: The overall 1-year actuarial patient survival was 94%; the overall 1-year actuarial graft survival was 87%. When the patient and graft survival data were stratified to recipients under the age of 60 who did not have delayed graft function, the overall 1-year actuarial patient survival was 97%, and the corresponding 1-year actuarial graft survival was 93%. There were no differences between the two groups. The overall incidence of rejection was 36%; in the double-therapy group, it was 44%, whereas in the triple therapy group, it was 27% (P=0.014). The mean serum creatinine was 1.6+/-0.8 mg/dl. A total of 36% of the successfully transplanted patients were taken off prednisone; 32% of the patients were taken off antihypertensive medications. The incidence of delayed graft function was 21%, the incidence of cytomegalovirus was 12.5%, and the initial and final incidences of posttransplant insulin-dependent diabetes mellitus were 7.0% and 2.9%; again, there was no difference between the two groups. CONCLUSIONS: This trial suggests that the combination of tacrolimus, steroids, and mycophenolate mofetil is associated with excellent patient and graft survival and a lower incidence of rejection than the combination of tacrolimus and steroids. (+info)
(3/6161) Is revision as good as primary hip replacement? A comparison of quality of life.
Primary total hip arthroplasty (THA) is one of the most effective ways of improving quality of life (QoL). We have compared the improvement in QoL in 62 patients who had a cemented revision of a THA with that of 62 primary replacements. One year after operation the median QoL score had been significantly improved in both groups; from 0.870 to 0.990 in the primary group (p < 0.0001) and from 0.870 to 0.980 in the revised group (p < 0.0001). There was no significant difference in the improvement in scores between the groups (p = 0.29). When reviewed after four years there was no difference in the pain score for either group (p = 0.89), but that for function had deteriorated significantly. This was associated with revision surgery (p = 0.018) and a low preoperative QoL score (p = 0.004). We conclude that both primary and revision operations give a significant improvement in the QoL but function after revision may be less durable than after a primary arthroplasty. (+info)
(4/6161) Analysis of 118 second-generation metal-on-metal retrieved hip implants.
Osteolysis is due to particulate wear debris and is responsible for the long-term failure of total hip replacements. It has stimulated the development of alternative joint surfaces such as metal-on-metal or ceramic-on-ceramic implants. Since 1988 the second-generation metal-on-metal implant Metasul has been used in over 60 000 hips. Analysis of 118 retrieved specimens of the head or cup showed rates of wear of approximately 25 microm for the whole articulation per year in the first year, decreasing to about 5 microm per year after the third. Metal surfaces have a 'self-polishing' capacity. Scratches are worn out by further joint movement. Volumetric wear was decreased some 60-fold compared with that of metal-on-polyethylene implants, suggesting that second-generation metal-on-metal prostheses may considerably reduce osteolysis. (+info)
(5/6161) Subsidence of a non-polished stem in revisions of the hip using impaction allograft. Evaluation with radiostereometry and dual-energy X-ray absorptiometry.
We revised 24 consecutive hips with loosening of the femoral stem using impaction allograft and a cemented stem with an unpolished proximal surface. Repeated radiostereometric examinations for up to two years showed a slow rate of subsidence with a mean of 0.32 mm (-2.0 to +0.31). Fifteen cases followed for a further year showed the same mean subsidence after three years, indicating stabilisation. A tendency to retroversion of the stems was noted between the operation and the last follow-up. Retroversion was also recorded when displacement of the stem was studied in ten of the patients after two years. Repeated determination of bone mineral density showed an initial loss after six months, followed by recovery to the postoperative level at two years. Defects in the cement mantle and malalignment of the stem were often noted on postoperative radiographs, but did not correlate with the degrees of migration or displacement. After one year, increasing frequency of trabecular remodelling or resorption of the graft was observed in the greater trochanter and distal to the tip of the stem. Cortical repair was noted distally and medially (Gruen regions 3, 5 and 6). Migration of the stems was the lowest reported to date, which we attribute to the improved grafting technique and to the hardness of the graft. (+info)
(6/6161) The elevated serum alkaline phosphatase--the chase that led to two endocrinopathies and one possible unifying diagnosis.
A 39-year-old Chinese man with hypertension being evaluated for elevated serum alkaline phosphatase (SAP) levels was found to have an incidental right adrenal mass. The radiological features were characteristic of a large adrenal myelolipoma. This mass was resected and the diagnosis confirmed pathologically. His blood pressure normalised after removal of the myelolipoma, suggesting that the frequently observed association between myelolipomas and hypertension may not be entirely coincidental. Persistent elevation of the SAP levels and the discovery of hypercalcaemia after surgery led to further investigations which confirmed primary hyperparathyroidism due to a parathyroid adenoma. The patient's serum biochemistry normalised after removal of the adenoma. The association of adrenal myelolipoma with primary hyperparathyroidism has been reported in the literature only once previously. Although unconfirmed by genetic studies this association may possibly represent an unusual variation of the multiple endocrine neoplasia type 1 syndrome. (+info)
(7/6161) Infrarenal endoluminal bifurcated stent graft infected with Listeria monocytogenes.
Prosthetic graft infection as a result of Listeria monocytogenes is an extremely rare event that recently occurred in a 77-year-old man who underwent endoluminal stent grafting for infrarenal abdominal aortic aneurysm. The infected aortic endoluminal prosthesis was removed by means of en bloc resection of the aneurysm and contained endograft with in situ aortoiliac reconstruction. At the 10-month follow-up examination, the patient was well and had no signs of infection. (+info)
(8/6161) Endovascular stent graft repair of aortopulmonary fistula.
Two patients who had aortopulmonary fistula of postoperative origin with hemoptysis underwent successful repair by means of an endovascular stent graft procedure. One patient had undergone repeated thoracotomies two times, and the other one time to repair anastomotic aneurysms of the descending aorta after surgery for Takayasu's arteritis. A self-expanding stainless steel stent covered with a Dacron graft was inserted into the lesion through the external iliac or femoral artery. The patients recovered well, with no signs of infection or recurrent hemoptysis 8 months after the procedure. Endovascular stent grafting may be a therapeutic option for treating patients with aortopulmonary fistula. (+info)