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B Kremer

Publications and source records attributed to B Kremer.

At least 19 recordsLinked to original sources

Bypass surgery versus palliative pancreaticoduodenectomy in patients with advanced ductal adenocarcinoma of the pancreatic head, with an emphasis on quality of life analyses.

BACKGROUND: In some centers, palliative resection (PR; partial pancreaticoduodenectomy) is, in selected cases, promoted in preference to double loop bypass (DLB) surgery for advanced pancreatic cancer. This prospective study compares PR with DLB, placing particular focus on patients' quality of life (QoL). METHODS: From 01/1993 to 09/2004, 167 patients were analyzed in a prospective single center study of palliative surgical treatment of advanced ductal adenocarcinoma of the pancreatic head. Thirty-eight underwent PR and 129 underwent palliative DLB. Patients undergoing DLB were divided into: (1) locally advanced disease (LAD-subgroup; n = 61; 47%) and (2) metastasized disease (MD-subgroup; n = 68; 53%). QoL was assessed using the EORTC QLQ-C30 questionnaire supplemented by a pancreatic cancer specific module. QoL data were collected pre-operatively and for up to 12 months after surgery. RESULTS: Median survival was 7.0 months (95% CI 4.09; 9.91) in PR patients and 6.0 months (95% CI 5.39; 6.61) in patients who received DLB. Mortality and morbidity were, respectively, 7.8 and 58% for PR, and 2.6 and 42% for DLB. QoL decreased more after PR than after DLB. The DLB-group recovered quicker, reaching pre-operative QoL levels after 3 months, and were less impaired when discharged. The LAD-subgroup and the MD-subgroup presented with equal levels of QoL. CONCLUSIONS: QoL analysis revealed favorable QoL data after DLB. Additionally, the survival rates of the two groups did not differ significantly, but morbidity and mortality rates in the PR group were elevated. Therefore, the use of PR for advanced pancreatic cancer needs to be carefully evaluated.

Aged↗

Scale for the assessment and rating of ataxia: development of a new clinical scale.

OBJECTIVE: To develop a reliable and valid clinical scale measuring the severity of ataxia. METHODS: The authors devised the Scale for the Assessment and Rating of Ataxia (SARA) and tested it in two trials of 167 and 119 patients with spinocerebellar ataxia. RESULTS: The mean time to administer SARA in patients was 14.2 +/- 7.5 minutes (range 5 to 40). Interrater reliability was high, with an intraclass coefficient (ICC) of 0.98. Test-retest reliability was high with an ICC of 0.90. Internal consistency was high as indicated by Cronbach's alpha of 0.94. Factorial analysis revealed that the rating results were determined by a single factor. SARA ratings showed a linear relation to global assessments using a visual analogue scale, suggesting linearity of the scale (p < 0.0001, r(2) = 0.98). SARA score increased with the disease stage (p < 0.001) and was closely correlated with the Barthel Index (r = -0.80, p < 0.001) and part IV (functional assessment) of the Unified Huntington's Disease Rating Scale (UHDRS-IV) (r = -0.89, p < 0.0001), whereas it had only a weak correlation with disease duration (r = 0.34, p < 0.0002). CONCLUSIONS: The Scale for the Assessment and Rating of Ataxia is a reliable and valid measure of ataxia, making it an appropriate primary outcome measure for clinical trials.

Adolescent↗

Phase I study of the humanised anti-EGFR monoclonal antibody matuzumab (EMD 72000) combined with gemcitabine in advanced pancreatic cancer.

The humanised anti-epidermal growth factor receptor (EGFR) monoclonal antibody matuzumab (formerly EMD 72000) is active against pancreatic cancer in preclinical studies. This phase I study assessed the safety and potential benefit of combined treatment with matuzumab and standard-dose gemcitabine. Three groups of chemotherapy-naive advanced pancreatic adenocarcinoma patients (n=17) received escalating doses of matuzumab (400 mg weekly, 800 mg biweekly, or 800 mg weekly) and gemcitabine (1000 mg m-2 weekly in weeks 1-3 of each 4-week cycle). Toxicity, antitumour activity, pharmacokinetic (PK) parameters, and pharmacodynamic (PD) markers in skin biopsies were evaluated. Severe treatment-related toxicities were limited to grade 3 neutropenia (n=3), leucopenia (n=1), and decreased white blood cell count (n=1). Common study drug-related adverse events were skin toxicities (grade 2=6, grade 1=7) and fever (grade 1=4). Matuzumab inhibited phosphorylated EGFR and affected receptor-dependent signalling and transduction; effects were seen even in the lowest-dose group. Pharmacokinetic data were consistent with results of matuzumab monotherapy. Partial response (PR) or stable disease occurred in eight of 12 evaluated patients (66.7%), with three PRs among six evaluated patients in the group receiving 800 mg weekly. Matuzumab in biologically effective doses with standard gemcitabine therapy appears well tolerated. The combination is feasible and may have enhanced activity.

Adenocarcinoma↗

Multimodal therapy of anal cancer added by new endosonographic-guided brachytherapy.

BACKGROUND: The most appropriate therapy for anal cancer is external beam radiotherapy (EBRT) combined with chemotherapy (CTX). The significance of additional brachytherapy is still under evaluation. We report on our experience of combined modality therapy of anal cancer and transrectal ultrasound (TRUS)-guided high-dose rate (HDR) afterloading therapy, referring to results of a study published in 1998 by the coauthors. METHODS: From 1993 to 2001, 50 patients with anal cancer were treated. After combined RCTX, HDR 2 x 4 Gy brachytherapy was administered based on TRUS imaging as a target. RESULTS: In five patients (10%), tumor recurrence occurred or the tumor did not respond to therapy, and four (8%) developed distant lymph nodes or organ metastases. Five patients (10%) had to undergo salvage abdominoperineal resection because of suspected recurrence. Specific disease-related 5-year survival was 82%. Therapy-associated complications in terms of sphincter necrosis and incontinence were observed in three patients (6%). CONCLUSIONS: TRUS-guided brachytherapy permits excellent local tumor control and results in minimal treatment-related morbidity. Consequently, TRUS-guided brachytherapy may be a useful addition to current combined modality treatment regimens for anal cancer.

Aged↗

Quality of life after pancreaticoduodenectomy for ductal adenocarcinoma of the pancreatic head.

BACKGROUND: This study examined quality of life (QoL) after classical partial pancreaticoduodenectomy (PPD) and pylorus-preserving pancreaticoduodenectomy (PPPD) in patients with adenocarcinoma of the pancreatic head, and also evaluated the influence of extended lymphadenectomy (ELA). METHODS: Between January 1993 and March 2004, QoL was analysed in a prospective single-centre study that included 91 patients. Thirty-four patients underwent PPD and 57 had a PPPD. Seventy patients had an ELA and 21 underwent regional lymphadenectomy (RLA). QoL was assessed using the European Organization for Research and Treatment of Cancer QLQ-C30 questionnaire and a pancreatic cancer-specific module. Data were collected before operation and for 24 months after surgery. RESULTS: The overall 5-year survival rate was 18 percent for all patients and 21 percent in those who had an R0 resection. QoL was impaired for 3-6 months after surgery and then recovered to preoperative levels. There was no significant difference in long-term survival after PPD versus PPPD and ELA versus RLA. Patients who had ELA reported clinically significant higher levels of diarrhoea and pain. PPPD showed a disadvantage in terms of pain. CONCLUSION: The surgical techniques of resection and reconstruction did not affect QoL, but extended lymphadenectomy was associated with an impairment in QoL.

Adult↗

Significant growth inhibition of orthotopic pancreatic ductal adenocarcinoma by CpG oligonucleotides in immunodeficient mice.

BACKGROUND/AIMS: The high rate of local recurrence after radical resection of pancreatic ductal adenocarcinoma fosters intensive efforts to develop new approaches for adjuvant treatment. Antisense and modified oligodeoxynucleotides (ODNs) have demonstrated significant tumour growth inhibitory effects in preclinical systems. Our aim was to evaluate the possible therapeutic potential of ODNs containing unmethylated deoxycytidyl-deoxyguanosine dinucleotides (CpG motifs). METHODOLOGY: For in vitro analysis, [(3)H]thymidine incorporation for DNA synthesis, colorimetric cell vitality assay (EZ4U assay), and DNA fragmentation assay (JAM-[(3)H]thymidine incorporation assay) to test for apoptosis were performed. In vivo testing was done on an orthotopic pancreatic xenotransplantation model using severe combined immunodeficient (SCID) beige and nude mice. RESULTS: No significant differential effect of either control ODN or CpG-1826 ODN with regard to tumour cell proliferation or induction of apoptosis was observed in vitro. In vivo, ODN-1826 proved to have a significant inhibitory effect (up to 40% reduction of tumour weight) when compared with tumour-bearing animals treated with saline or control ODN. This was accompanied by sevenfold increase in splenomegaly and moderate hepatomegaly. The reduction of tumour weight by ODN-1826 was only slightly more pronounced in nude compared with SCID beige mice. CONCLUSION: CpG-1826 induces significant growth-inhibitory effects on orthotopic xenotransplanted pancreatic tumours in highly immunodeficient mice, which might be explained by innate immunity mechanisms and possibly a complex interaction of tumour and stroma cells.

Animals↗

[University clinics in the competitive hospital market].

In recent years Germany has faced a growing economization and competition among hospitals. To protect their interests hospitals have to operate similarly to other commercial businesses. Academic hospitals face difficult circumstances in this competition. They have to facilitate research and education activities which require additional financial and personnel resources but also provide maximum acute care treatment at all times. This causes additional disadvantages in terms of financial resources, compared to private hospital chains. Such examples of financial shortcomings have led to the privatization of academic research centres in Germany. An alternative strategy to privatization of academic acute care hospitals is the change of their legal status into a capital company or into a foundation, according to US experiences. Public private partnerships (PPPs) may also represent a potential alternative, as they have already produced a growing number of successful examples in the public sector in Germany. Academic acute care hospitals can also choose a strategic reorganization of their targets, similar to their privately held competitors in the market. Potential economies in scale may be achieved in areas such as medical treatment, research and personnel planning.However, it is vital that academic acute care hospitals start to act productively and also individually. This article provides a number of managerial pathways and options to maintain and strengthen operational competitiveness.

Economic Competition↗

IL-2 antagonists: the European perspective.

Acute rejection remains the main risk factor following intestinal transplantation. New immunosuppressive agents have substantially reduced the incidence of severe acute rejection. The question arises, which is the most powerful immunosuppressive combination with the lowest incidence of side effects? According to International Intestinal Transplant Registry data, anti-IL-2 antibodies are slightly advantageous compared with antilymphocyte preparations with respect to long-term patient survival. However, different antilymphocyte preparations are used in different doses and at different time points. The anti-IL-2 antibodies daclizumab and basiliximab were also used in different protocols. Therefore, final results on efficacy are awaited. The most important difference between IL-2 antibodies and antilymphocyte preparations is the suppression of CD4+ CD25+ T lymphocytes by anti-IL-2 antibodies. Antilymphocyte preparations do not affect CD4+ CD25+ T cells. Because regulatory CD4+ CD25+ T cells are essential for tolerance induction, protocols attempting tolerance may omit anti-IL-2 antibodies in the future.

Antilymphocyte Serum↗

[Quality of life and sexuality after surgery for rectal cancer--a follow-up study].

BACKGROUND: Previous studies have suggested that sexuality following surgery for rectal cancer is better in women than in men and differs with type of surgery in terms of impact on Quality of Life. However, the findings were inconsistent. The aim of the presented study was to address these issues. METHODS: 570 patients that had undergone surgery for rectal cancer in our department from 1992 to 1999 were included. After determination of survival status questionnaires on Quality of Life were sent to 370 patients one to two years post surgery. We analysed data from 215 patients of which 103 were female and 112 male. 248 patients died during the time observed. Statistical analysis was done with descriptive methods, Kaplan-Meier analysis (log rank test), T-test and analysis of variance using SPSS 11.0 for Windows. RESULTS: Significant differences were seen in symptom scales between men and women. Women scored higher for distress through medical treatment and had higher values for insomnia, fatigue and constipation. Both sexes had impaired sexual life but men had significantly higher values and felt more distressed by the impairment of sexuality than women. For patients receiving abdominoperineal resection sexuality was most impaired. Anterior resection with pouch had a detrimental effect on diarrhoea and treatment strain. CONCLUSION: The study showed that sexuality is influenced by gender and type of surgery and impacts Quality of Life after surgery for rectal cancer. Assessing quality of life with generic and specific instruments is helpful to determine differences between surgical procedures, age, gender, and adjuvant therapy where standard parameters such as survival have their limitations.

Age Factors↗

Cystic neoplasms of the pancreas and tumor-like lesions with cystic features: a review of 418 cases and a classification proposal.

Although cystic neoplasms and lesions of the pancreas are rare, they have attracted a great deal of attention because of their potential curability. Since, in recent years, several new entities have been identified, the relative frequency of the tumors and their classification need to be reevaluated. In a series of 1454 tumorous lesions of the pancreas collected between 1971 and 2003 in our surgical pathology files and consultation files, all cystic pancreatic neoplasms and tumor-like lesions were identified and typed both histologically and immunohistochemically. There were 418 cases (29%) showing cysts with a diameter ranging between 0.5 cm and 27 cm. Most common were solid pseudopapillary neoplasms (21%) and intraductal papillary-mucinous neoplasms (18%). When only the cystic neoplasms and lesions that had been resected in a single institution were considered, intraductal papillary mucinous neoplasms were the most frequent cystic neoplasms, while solid pseudopapillary neoplasms took fifth place behind ductal adenocarcinomas with cystic features, serous cystic neoplasms and mucinous cystic neoplasms. The most frequent cystic tumor-like lesions were pancreatitis-associated pseudocysts. New and rare entities that have recently been identified are mucinous nonneoplastic cysts, acinar cell cystadenomas and cystic hamartomas. Bearing in mind that figures from referral centers such as ours may be biased regarding the relative frequency of lesions, we concluded from our data that intraductal papillary-mucinous neoplasms are the most frequently occurring pancreatic cystic neoplasms, rather than solid pseudopapillary neoplasms. It was possible to classify all cystic lesions encountered in our files or described in the literature in a new system that distinguishes between neoplastic and nonneoplastic lesions, with further subdivisions into epithelial (adenomas, borderline neoplasms and carcinomas) and nonepithelial tumors. This classification is easy to handle and enables a distinction on the basis of clinical behavior and prognosis.

Adolescent↗

[Modification of the liver resection technique with radiofrequency coagulation].

INTRODUCTION: Since the introduction of liver resection, intraoperative blood loss is considered to be a major risk factor for perioperative morbidity and mortality. Radiofrequency energy-an established technique for in situ ablation-was used to facilitate liver resection by creating a nearly bloodless tissue plane. METHODS: After thorough manual and sonographic exploration of the liver, the planned and marked resection plane was coagulated by radiofrequency and then transected. Seven patients with liver metastases of colorectal carcinoma were operated on employing this technique. RESULTS: A nearly bloodless transection of the parenchyma could be achieved in all cases. Only two patients received blood transfusions: one due to a low preoperative hemoglobin and one due to extended additional abdominal surgery. Procedure-related complications included one case of a second-degree burn to the thigh and one case of postoperative bile leakage requiring hemihepatectomy. CONCLUSIONS: Radiofrequency-assisted resection offers a valuable additional option in liver surgery, especially in patients with an increased risk of intraoperative bleeding (cirrhosis, coagulopathy).

Adult↗

Intraoperative radiofrequency ablation (RFA) for irresectable liver malignancies.

AIMS: To evaluate the outcome of patients who received radiofrequency ablation (RFA) at open laparotomy in patients with irresectable liver malignancies. METHODS: Twenty-six consecutive patients who underwent explorative laparotomy and were found to be irresectable or who had been assessed not suitable for either resection or percutaneous RFA received intraoperative RFA. An expandable electrode (RITA Medical systems) was used. Follow-up comprised CT-scans in 6-12 week intervals. RESULTS: Patients' age ranged from 35 to 72 years (median 61). A variety of pathologies were treated. In 26 patients, 88 hepatic lesions were treated: 32 with resection and 56 with RFA. The mean diameter was 4.0+/-2.6 cm with a maximum of 10 cm. In 22 patients with hepatic metastases (18 colorectal, one leiomyosarcoma, one endometrium carcinoma, one renal cell carcinoma, one malignant phaeochromocytoma) 74 lesions (median 3.4 per patient) were treated (25 by resection, 49 by RFA). Eleven patients received simultaneous resection and RFA: resection of anatomical segments in six and atypical resection in seven patients. Procedure related complication rate was 19.2%. The mean follow-up was 14.6+/-9.2 months (2-36 months). Three patients developed recurrence at the site of previous RFA indicating incomplete ablation. The overall local control rate after one year was 92 and 90.9% for patients with colorectal liver metastases, respectively. Seventeen patients (65.4%) suffered from tumour progress. In 14 patients (53.9%) tumour occurred at new hepatic localisations and in five patients extrahepatic tumour relapse was diagnosed. Twelve patients have died so far (median survival 18 months, range 4-27). Nineteen patients had either completed a follow-up of at least 12 months or died within this period, resulting in an one year survival rate of 79% (80% for liver metastases). CONCLUSION: Intraoperative RFA is a valuable tool in liver surgery which extends the surgical spectrum in cases of irresectable malignancies.

Adult↗

Immunosuppression following intestinal transplantation.

Acute rejection is still the main risk factor following intestinal transplantation. Potent immunosuppression decreases rejection frequency, but may increase immunosuppression-related complications. Isolated small intestinal transplantation was performed in 14 adult patients with short bowel syndromes. Immunosuppression included tacrolimus and rapamycin in combination with steroids for 6 months after ATG or daclizumab induction therapy. In addition to protocol biopsies, cellular immune status and soluble immune parameters were used to guide immunosuppression. CMV and EBV markers were determined on a routine basis. Ten of 14 patients (71%) survived for 1 to 38 months (median 26 months). Eight patients are at home, in good physical condition, completely on enteral nutrition. Among the 5 patients (36%) who developed acute rejection, 2 patients with early postoperative events underwent graft removal and 1 patient died due to multiple organ failure. Two patients developed severe acute rejection episodes at 10 and 24 months following transplantation. Both patients recovered following OKT3 rescue therapy and increased baseline immunosuppression with repeated methylprednisolone and infliximab treatment. Infections included peritonitis (n = 3), pneumonia (n = 3), central line infection (n = 5), urinary tract (n = 2), CMV (n = 2), and EBV (n = 4). Two patients developed anastomotic leaks at the esophageal and coloanal anastomosis. In conclusion, acute rejection episodes can be controlled by potent immunosuppression using tacrolimus in combination with rapamycin. Immunosuppression-associated complications, including infections, were in an acceptable range. However, even late after transplantation, reduction in immunosuppression may lead to severe rejection without major clinical symptoms.

Adult↗

Isolated adult intestinal transplantation using portal venous drainage.

There is some evidence that portal venous drainage may offer immunologic and metabolic advantages in small bowel transplantation. Isolated small bowel transplantation was performed in 14 adult patients. In all cases, the donor pancreas was transplanted into another patient. During the donor procedure, the superior mesenteric artery and vein were separated below the division of the inferior pancreaticoduodenal artery and below the veins of the pancreatic head. An arterial interposition graft was used in all cases. One donor mesenteric artery was reconstructed in 6 patients; two arteries in 5 patients; and three arteries in 3 patients. Proximal arteries of the graft were ligated and the upper part of the jejunum resected. In 10 patients, a direct anastomosis was performed in an end-to side fashion between donor superior mesenteric vein (SMV) and recipient inferior mesenteric vein (IMV). In 2 patients, a branch of the superior mesenteric vein was used and 2 patients required a venous interposition graft to confluence using the donor iliac vein. Patency of the venous anastomosis was documented by magnetic resonance imaging (MRI) angiography after 6 months. No vascular complications have been observed to date. Portal venous drainage is technically feasible in most cases. An anastomosis to the recipient IMV offers the advantage of being direct despite the short donor vein segment. Furthermore, donor and recipient vessels are well matched for size. Using microsurgical techniques, vascular complications may be avoided.

Adult↗

Expression of E-selectin and its transcripts during intestinal ischemia-reperfusion injury in pigs.

BACKGROUND: Ischemia-reperfusion injury (IRI) can result in severe organ dys- or nonfunction. Interaction of leukocytes and endothelial cells mediated by E-selectin appears to be a key step for disturbed microcirculation. Therefore we studied gene and protein expression as well as localization of E-selectin during intestinal IRI. METHODS: Intestinal tissue samples were obtained from extracorporeal perfused intestines (cold ischemia time [CIT] 2 or 20 hours, each n = 5) and additionally in intestinal transplanted pigs (CIT 2 or 20 hours, each n = 1). Mucosal damage was graded according to the Chiu classification. E-selectin mRNA was determined by PCR and quantitative RT-PCR. Localization of E-selectin mRNA was performed by in situ hybridization and of the protein by immunohistochemistry. RESULTS: Histologically, mucosal damage occurred during reperfusion and was earlier and more severe after 20 hours of CIT. E-selectin mRNA expression was detected by PCR already after laparotomy and was elevated after reperfusion. Interestingly, mRNA expression was already increased after 20 hours of CIT. E-selectin mRNA was localized to the luminal surface of muscular, submucosal, and mucosal endothelial cells and the protein was detected on submucosal arterial endothelium as early as 2 hours after reperfusion. CONCLUSION: Prolongation of CIT results in more severe mucosal damage during reperfusion, which is associated with protein expression of E-selection that might be used as a marker for activated endothelial cells. Increased E-selectin mRNA at end of 20 hours of CIT might indicate a preactivated state of endothelial cells potentially triggered by bacterial translocation or products.

Animals↗

Kinetics and localization of interleukin-2, interleukin-6, heat shock protein 70, and interferon gamma during intestinal-rerfusion injury.

BACKGROUND: Intestinal ischemia-reperfusion injury (IRI) represents an exaggerated inflammatory cascade with a complex pathophysiology. IL-2, IL-6, HSP70, and INF-gamma are mediators of the inflammatory process. Therefore, we investigated their kinetics and localization during intestinal IRI. METHODS: Pig intestinal specimens were obtained during cold preservation (cold ischemia time 2 hours) and extracorporeal perfusion. Mucosal damage was graded according to the Chiu classification. MRNA expression was determined by Northern blot (IL-2, IL-6, IFN-gamma) or by quantitative RT-PCR (IL-6, HSP70) and localized by in situ hybridization. RESULTS: Histologically, mucosal damage occurred during reperfusion. Expression of IL-2 mRNA was up-regulated after HTK perfusion and was highest at the start and 7 hours after reperfusion. Expression of IL-6 mRNA increased at 2 hours after reperfusion and HSP70 at 3 hours after reperfusion. IFN-gamma mRNA was expressed after HTK perfusion, with expression of this cytokine increasing to 1 hour after the start of reperfusion, and decreasing thereafter. IL-2 mRNA was localized to endothelial cells (EC) and leukocytes and in close relation to ganglion cells (GC): IL-6 mRNA in EC, smooth muscle cells (SMC), and GC: HSP70 mRNA in EC and SMC; and IFN-gamma mRNA in leukocytes. CONCLUSION: IL-2, IL-6, HSP70, and INF-gamma are parameters of early mRNA expression during intestinal IRI. EC, SMC, leukocytes, and GC have been identified as sources of transcripts that might afford potential targets for intervention strategies to attenuate IRI.

Animals↗

Management of venous access problems before and after intestinal transplantation: case reports.

Patients suffering irreversible loss of intestinal function require total parenteral nutrition (TPN). During long-term TPN, catheter infections are a common problem and intestinal transplantation (ITx) is indicated when patients experience loss of venous access. We report two patients with short bowel syndrome--one before and one after ITx. The patient listed for ITx had several catheter infections with septic temperatures. Staphylococcus aureus, detected in blood cultures, was treated with vancomycin. Packing of the central venous line (CVL) with vancomycin was not successful; the CVL was changed. Search for an infectious focus identified a septic femoral head destruction that was treated by incision and implantation of a hip endoprothesis. Thereafter, the patient was free from infection. The second patient underwent ITx on January 2, 2003, and is free from TPN. ITx was complicated by temporary acute renal failure and heparin-induced thrombocytopenia (HIT) syndrome. After compensation of kidney function, the patient required additional saline solution (1 to 2 L/d) to optimize renal perfusion. A CVL was placed in the external iliac vein (EIV) due to previous loss of venous access. At 2 months after ITx, the CVL was infected and the patient was septic. MR scan revealed only one jugular vein to provide vascular access. Therefore, the CVL was changed from the right to the left EIV. Postoperatively, the patient developed thrombosis of right iliac vein and a wound infection that is probably related to the nearby graft ileostomy. At present, the patient is in good condition with a functioning graft. In conclusion, recurrent CVL infections before ITx might reflect other infectious foci that require intensive diagnostic evaluation. After ITx, CVL infection may cause venous thrombosis. Therefore, a single upper venous access should be preserved for optimal care.

Adult↗