Delayed hemorrhage after pancreaticoduodenectomy

BACKGROUND: Postoperative hemorrhage, particularly delayed hemorrhage after pancreaticoduodenectomy, is a serious complication and one of the most common causes of mortality after pancreaticoduodenectomy. STUDY DESIGN: The medical records of 500 patients who underwent pancreaticoduodenectomy between October 1994 and December 2002 were analyzed with regard to postoperative hemorrhagic complications. Delayed hemorrhage was defined as bleeding at the operation site after 5 or more postoperative days. RESULTS: Delayed hemorrhage occurred in 22 patients (4.4%), with a median time of 13 days (range 7 to 32 days) after pancreaticoduodenectomy, and developed more frequently (9/77 versus 13/423, p = 0.003) in patients with preceding intraabdominal complications such as pancreatic fistula, bile fistula, and intraabdominal abscess. In 17 of these 22 patients, angiography and laparotomy revealed bleeding foci at 14 arterial and 3 anastomotic sites. In nine patients, hemorrhage developed from pseudoaneurysms of the major arteries around the pancreaticojejunostomy. Hemostatis was attempted by transcatheter arterial embolization in 14 patients and with laparotomy in 4 patients. Four of 14 patients who received transcatheter arterial embolization eventually required laparotomy. Overall, 4 of the 22 delayed hemorrhage patients died (18.2%) of complications related to massive bleeding or transcatheter arterial embolization. CONCLUSIONS: Delayed hemorrhage after pancreaticoduodenectomy is associated with a high mortality. Intraabdominal complications after pancreaticoduodenectomy should be evaluated properly and guidelines for the diagnosis and treatment of delayed hemorrhage should be established in advance. Clinicians must be alert to the possibility of pseudoaneurysm hemorrhage.     

Antineutrophil cytoplasmic antibody-associated glomerulonephritis in Taiwanese

AIMS: This retrospective study defined the clinical features and outcome of antineutrophil cytoplasmic antibody-associated glomerulonephritis in 18 seropositive Taiwanese patients (11 male, seven female; median age 64 years; range 21-82 years) with biopsy-proven pauci-immune necrotizing crescentic glomerulonephritis. RESULTS: Fourteen patients had a diagnosis of systemic vasculitis including 10 with microscopic polyangiitis and four with Wegener's granulomatosis; the remaining four had only glomerulonephritis. At onset, 100% of the systemic vasculitis patients had pulmonary lesions with or without haemoptysis, and 29% presented with seizure in the absence of a defined brain lesion. Median serum creatinine concentration was 362.4 micromol/L (range 61.9-857.5 micromol/L) and dialysis therapy was needed in six patients. During follow up (median 16.5 months; range 2-72 months), treatment included cyclophosphamide and corticosteroids (n = 8) or corticosteroids alone (n = 7). In some patients, treatment improved (n = 4) or stabilized (n = 4) renal function. But chronic dialysis was needed in the other 10 patients. Follow-up death occurred because of sepsis (n = 3) and haemorrhage (n = 2). Patient survival rates were 78% (1 year) and 72% (5 years). Renal survival rates were 56 and 39% at 1 and 5 years, respectively. Of the candidate clinical and pathological parameters, chronic glomerular lesions in renal biopsy were the only determinant of poor renal outcome (P = 0.006). CONCLUSION: Antineutrophil cytoplasmic antibody-associated glomerulonephritis should be considered in nephritic patients with extrarenal manifestations, especially pulmonary infiltrate, unexplained seizure, and fever of an unknown origin in Taiwanese patients. Renal biopsy should be performed before initiating immunosuppressive therapy because the most common cause of mortality was sepsis.     

Refractory candidal meningitis in an immunocompromised patient cured by caspofungin

Candidal meningitis is a rare infectious disease that usually leads to substantial morbidity and mortality. We present a case of candidal meningitis refractory to systemic antifungal therapy (amphotericin B and fluconazole). A 63-year-old female with lymphoblastic lymphoma and myelodysplasia with leukemia transformation developed prolonged fever and headache on the seventh day following intrathecal prophylactic chemotherapy. A lumbar puncture showed neutrophilic pleocytosis, and a cerebrospinal fluid culture yielded Candida albicans. The clinical course was complicated by brain edema, subarachnoid hemorrhage, and hydrocephalus. Parenteral therapy with amphotericin B alone or amphotericin B in combination with fluconazole or intrathecal administration of amphotericin B failed to eradicate C. albicans in the cerebrospinal fluid. After 7 days of caspofungin therapy, however, the cerebrospinal fluid became sterile and the patient gradually regained consciousness. She was discharged 1 month after completing 4 weeks of caspofungin therapy. There were two critical issues we thought to be relevant to the favorable outcome of this case. First, isolation of C. albicans was achieved by inoculating enriched liquid medium with cerebrospinal fluid. Second, there is a potential therapeutic benefit of caspofungin in treating a fungal infection of the central nervous system.     

Expression of adhesion molecules and Ki-67 in female adnexal tumor of probable Wolffian origin (FATWO): report of two cases and review of the literature

Female adnexal tumor of probable Wolffian origin (FATWO) is a rare entity which is believed to originate from mesonephric (Wolffian) remnants on the basis of its location where the remnants are abundant. Its behavior is usually indolent, although some cases can recur or metastasize. The authors present the clinicopathological features of two cases of FATWO arising in the broad ligament, and focus on the expression of adhesion molecules and proliferative marker. Mesonephric duct remnants are also examined in an attempt to elucidate the histogenesis of FATWOs. The two FATWOs were well-circumscribed solid masses arising in the leaves of the broad ligament and histological examination revealed a mixture of cysts and tubules imparting a sieve-like pattern and mucin-negative eosinophilic secretion within these tubules. Immunohistochemically, the tumors showed the expression of cytokeratin 7 and 20, high-molecular-weight cytokeratin, and calretinin, which closely resembled that of the mesonephric duct remnants. Regarding CK 20, CD 10, EMA, S-100 protein, and vimentin their expression was in part not identical with previous studies. E-cadherin, alpha and beta-catenin were strongly expressed along the cell membrane of the tumor cells. The Ki-67 labeling index of FATWO was 0% and 3.2% in each case. The preservation of the E-cadherin-catenin complex and low Ki-67 labeling index could explain the indolent behavior and low malignant potential of this tumor.     

Using vacuum-assisted closure (VAC) in wound management

A new method for wound management, vacuum-assisted closure (VAC) is a technique that applies negative pressure to a wound bed through a porous, open-cell foam that fills the wound cavity. Its advantages include rapid wound healing, reduced pain, shorter hospital stays, lower medical costs, and fewer nursing responsibilities. It can also be used with patients suffering from multiple wounds. The tool may be used to address wounds that are appearing more frequently now that technological advancements are prolonging the lives of elderly patients. Reducing costs associated with wound treatments is therefore becoming an increasingly important issue in health care.     

Unexpected loss of atrial tracking caused by interaction between temporary and permanent right ventricular leads during implantation of a biventricular pacemaker

This report describes a patient who underwent implantation of an atriobiventricular pacemaker following AV junction ablation and insertion of a temporary right ventricular (RV) pacemaker. During implantation, intermittent loss of sinus P wave tracking occurred when the three permanent leads were connected to the generator. Analysis of marker annotation disclosed intermittent abnormal ventricular sensing that reinitiated postventricular atrial blanking and caused failure of P wave tracking. This phenomenon disappeared after removing the temporary RV lead, but not by turning off the temporary pacemaker. We assume that mechanical contact between the temporary and the permanent RV leads is the underlying mechanism.