Skin cancers and other cutaneous diseases in renal transplant recipients: a single Italian center observational study.

Kidney transplant recipients frequently suffer from skin infections and malignancies, due to the effects of long-term immunosuppressive therapy. Herein, a dermatological screening was performed to evaluate the relationship between risk factors, cutaneous tumours and other skin diseases in a group of 282 kidney transplant patients. Infectious diseases (16.7%) were the most frequent dermatological disorders, whereas cutaneous inflammatory and autoimmune diseases were relatively rare, probably due to an indirect therapeutic role of immunosuppressive regimens. Thirty patients experienced cutaneous side effects from immunosuppressants, mainly when receiving corticosteroids (p = 0.0372). We identified 99 patients (35.1%) who developed cutaneous tumours after transplantation. Cumulative tumour incidence was observed during long-term immunosuppressive therapy; no relationships were identified between skin cancer risk and single class of drug or combination regimens. When we evaluated the eventual relevance of other risk factors for skin cancers, we demonstrated a statistical significance in univariate analysis for male gender, more advanced age at transplantation, long duration of immunosuppressive regimens, no sunscreen usage, outdoor job, absence of cherry angiomas and presence of actinic keratoses (AKs). Age at transplantation (p = 0.0174), presence of AKs (p = 0.0005) and duration of immunosuppression (p = 0.0011) also confirmed their significance in multivariate analysis.

'Bench' MRI before transplant on harvested kidneys: a possible tool for diagnosis of acute pyelonephritis.

We present the first case in which magnetic resonance imaging (MRI) has been utilized to rule out lesions compatible with acute pyelonephritis in kidneys from a cadaveric organ donor before transplanting them. A 40-year-old female underwent diagnosis of brain death following a septic shock. The ecotomography of the kidneys showed areas compatible with micro-abscesses raising the hypothesis of acute pyelonephritis. Our radiologist proposed to perform a bench-MRI (maintaining kidneys within the sterile preservation bags constantly on ice); this did not show lesions except little cysts not relevant by the clinical point of view. We transplanted kidneys without infective complications and results were very good.

Dialysis choice in the context of an early referral policy: there is room for self care.

BACKGROUND: Predialysis care is vital for the patient and is crucial for dialysis choice: empowered, early referred patients tend to prefer out-of-hospital and self-care treatment; despite these claims, early referral remains too often a program more than a reality. Aim of the study was to evaluate the pattern and reasons for RRT choice in patients treated in a long-standing outpatient network, presently following 850 chronic patients (about 80% diabetics), working with an early referral policy and offering a wide set of dialysis options (home hemo and PD; self care and limited care hemodialysis; hospital hemodialysis). METHODS: Prospective historical study. All patients who started RRT in January 2001-December 2003 were considered. Correlations between demographical (sex, age, educational level) or clinical variables (pre-RRT follow-up, comorbidity, SGA and Karnofsky) and treatment choice have been tested by univariate (chi-square, Kruskal-Wallis) and multivariate models (logistic regression), both considering all choices and dichotomising choice into "hospital" versus "out of hospital dialysis". RESULTS: Hospital dialysis was chosen by 32.6% of patients; out of hospital in 67.4% (PD 26.5%, limited-care 18.4%, home hemodialysis 4.1%, self-care 18.4%). Hospital dialysis and PD were chosen by elderly patients (median age: 67.5 and 70 years respectively) with multiple comorbidities (75% and 92.3%); no difference for age, comorbidity, Karnofsky, SGA and educational level. 6/13 PD patients needed the help of a partner. Self-care/home hemodialysis patients were younger (median age 52), had higher educational level (p = 0.014) and lower prevalence of comorbidity (63.6% vs 94.7% in the other dialysis patients, p = 0.006). In the context of a long follow-up period (3.9 years) a statistically significant difference was found comparing hospital dialysis (3.3 years) vs out of hospital dialysis (4.9 years) (p = 0.035). In a logistic regression model, only pre-RRT follow-up was correlated with dialysis "hospital vs "out of hospital" choice (p = 0.014). CONCLUSION: Early nephrological follow-up may enhance self and home-based dialysis care.

The grafted kidney takes over: disappearance of the nephrotic syndrome after preemptive pancreas-kidney and kidney transplantation in diabetic nephropathy.

This report describes the rapid and complete reversal of proteinuria after preemptive transplantation in diabetic nephropathy. Case 1 was a 42-year-old woman with type 1 diabetes (before pancreas-kidney graft: serum creatinine 1.6 mg/dL and proteinuria 9.1 g/day; 1 month after pancreas-kidney graft: proteinuria 0.3 g/day and creatinine 1.3 mg/dL). Case 2 was a 48-year-old man with type 2 diabetes (before kidney graft: creatinine 2 mg/dL and proteinuria 5.9 g/day; 1 month after: proteinuria 0.7 g/day and creatinine 1.1 mg/dL). The proteinuria pattern changed (pre: glomerular nonselective, tubular complete; post: physiologic). Renal scintiscan (99mTC-MAG3) demonstrated functional exclusion of the native kidneys, despite high pretransplant clearance (> 50 mL/min). The effect was not linked to euglycemia or readily explainable by pharmacologic effects (no difference in renal parameters after pancreas transplantation with the same protocols). These data confirm the efficacy of preemptive kidney and kidney-pancreas transplantation in diabetic nephrotic syndrome and indicate that a regulatory hemodynamic effect should be investigated.

Continuum of therapy in progressive renal diseases (from predialysis to transplantation): analysis of a new organizational model.

In the aging of Western populations, decreased mortality is counterbalanced by an increase in morbidity, particularly involving chronic diseases such as most renal diseases. The price of the successful care of chronic conditions, such as cardiovascular diseases or diabetes, is a continuous increase in new dialysis patients. However, the increased survival of patients on chronic renal replacement therapies poses new challenges to nephrologists and calls for new models of care. Since its split from internal medicine, nephrology has seen a progressive trend toward super specialization and the differentiation into at least 3 major branches (nephrology, dialysis, and transplantation), following a path common to several other fields of internal medicine. The success in the care of chronic patients is owed not only to a careful technical prescription, but also to the ability to teach self-care and attain compliance; this requires good medical practice and a sound patient-physician relationship. In this context, the usual models of care may fail to provide adequate coordination and, despite valuable single elements, could end up as an orchestra without a conductor. We propose an integrated model of care oriented to the type of patient (tested in our area especially for diabetic patients): the patient is followed-up by the same team from the first signs of renal disease to eventual dialysis or transplantation. This model offers an interesting alternative both for patients, who usually seek continuity of care, and for nephrologists who prefer a holistic and integrated patient-physician approach.

Home hemodialysis à la carte: a tailormade program (1998-2003).

BACKGROUND: There are good epidemiological (increased numbers of dialysis patients), economical (renal replacement therapy (RRT) costs) and clinical reasons (new highly efficient schedules) to reconsider the choice of home hemodialysis (HD). STUDY AIM: Analysis of the results and costs of a flexible, tailormade home dialysis program (1998-2003). SETTING: Home HD facility of the University of Turin-Italy. METHODS: Results were analyzed in terms of feasibility (enrolment rate, logistical problems--the two usual caregivers performed a retrospective analysis of the clinical records; production costs, assessed with a logic bottom-up technique). Since the main program feature was the tailoring of dialysis to the patient, kinetic data were analyzed to control the efficiency of the chosen schedules. RESULTS: In 1998-2003 (54 months), 31 patients joined the home HD program (six patients were already being treated), while another 12 patients were treated in the training area and trained for an ongoing self-care program; mean age was 47.1 +/- 12.8 yrs; 35/49 patients had clinical comorbidities. During the study, four patients died, 10 were grafted, and six patients dropped out or were transferred. In March 2003, 23 patients were at home/in training and six were being treated in the training area: 11 patients were on a conventional schedule, four on daily dialysis, 12 on other schedules (two patients non-resident in the Piedmont region were not considered). Dialysis efficiency reached the target (EKRc > 11 mL/min) in all but four patients (schedules with more frequent sessions were planned for these patients). Costs were comparable to limited care HD (daily: 96.5 euros/session at home, 98.76 euros/session in the center; conventional: 133.48 euros/session at home, 131.25 euros/session in the center). CONCLUSION: A tailored, flexible policy can help to revive a home HD program.

Flexibility as an implementation strategy for a daily dialysis program.

BACKGROUND: Daily hemodialysis (DHD) is an interesting dialysis option, experienced worldwide by only a few hundred patients, because of clinical and logistic limitations. This study describes the main clinical and implementation results of a flexible policy applied in starting a DHD program. METHODS: The setting is the University Nephrology Center of Turin, Italy (approximately 150 hemodialysis and 50 peritoneal dialysis (PD) patients) where in November 1998 a short daily DHD program was started. Outcome measures were logistical (enrollment rate, indications and drop-outs) and clinical (dialysis efficiency, metabolic control, hypertension and anemia control). RESULTS: 25 patients experienced DHD, 16 (11% of the hemodialysis pool) were on DHD in November 2001; overall the DHD follow-up was 409.1 months (median 18, range 0.7-36 months). Flexibility was applied to schedules (patients modulated dialysis time and could switch to 3-4 sessions/wk); treatment setting (home: 11 patients, limited care center: 13; alternate settings: one); clinical selection (23/25 patients with comorbidity). Main reasons for choice were poor tolerance of previous schedule and the search for "best" treatment. Five patients dropped out (work reasons), one died on DHD and three were grafted. As compared to baseline, dialysis efficiency increased (EKRc pre-DHD 14.5 +/- 2.1 mL/min; 17.4 +/- 2.8 mL/min and 17.7 +/- 3.5 mL/min at 1-6 months; p<0.000). Despite the potentially confusing effect of comorbidity, the main clinical data improved. CONCLUSIONS: A flexible approach allowed development of DHD in approximately 11% of hemodialysis patients, with promising clinical results, despite frequent comorbidity.

Biochemical and microscopic urinalysis: time and cost in a nephrology laboratory.

BACKGROUND: Urinalysis is a fundamental test in internal medicine and nephrology. Figures for costs are available in the general laboratory, where biochemical and microscopic urinalysis are commonly performed as semiautomated screening tests. Information on costs is lacking in the nephrology laboratory, where a time-consuming morphological analysis is usually preferred. This study analyses the costs of urinalysis in a nephrology laboratory. METHODS: In the nephrology laboratory at the University of Turin - Italy, biochemical urinalysis consists of multi-property strip and proteinuria/creatininuria, done by laboratory technicians. Phase-contrast microscopy is done by a nephrologist or biologist. Time dedicated to the tests was recorded by the same operator over 20 working days, during which 350 urine samples were processed (median 19/day, range 842). The production costs were calculated with the logic bottom-up technique. RESULTS: Overall time needed was 11.9 minutes/sample. Biochemical urinalysis required 6.6 minutes/sample; time required and samples processed were inversely related (< or =19 samples: 7.95 minutes/sample; >19 samples: 5.6 minutes/sample, p=0.01). Microscopic urinalysis took 5.3 minutes/slide; the best time-to-samples ratio was at 18-22 samples per day (with peak efficiency at 21 samples: 4.6 minutes). Cost of reagents and disposables was Euro1.06/sample. Time accounted for euro 5.32/sample (technicians, nephrologist-biologist), with total direct cost of euro 6.38/sample. CONCLUSION: In a nephrology laboratory, microscopic urinalysis is a time-consuming, expensive test. Analysis of cost and modalities may be useful, in a time of budget constrains, to maintain a role for this precious semeiotic art.

Kidney rupture: an unusual and oligosymptomatic complication in a dialysis patient with acquired cystic disease.

Acquired cystic kidney disease (ACKD) is a complication of end-stage renal disease, the prevalence of which is related to dialysis duration; incidence of ACKD and associated conditions (neoplasia, hemorrhage) have decreased with improvements in renal transplantation and with the ageing of the dialysis population. This report regards spontaneous kidney rupture in a 57-year old patient, on home hemodialysis for 11 years, with ACKD for 5 years. At the end of a dialysis session, the patient reported sudden onset of colicky flank pain, followed by macrohematuria. Pain remitted with low doses of pain relievers, leaving dull flank discomfort. The patient self diagnosed a renal colic, and called the hospital two days later. At referral, two large hemorrhagic renal masses (7 and 2.8 cm) were found at ultrasound and CT scan. At surgery, kidney rupture was diagnosed. This case highlights the life threatening complications associated with ACKD, and underlines that massive renal hemorrhage may occur with relatively minor symptoms.

Ankylosing spondylitis: a difficult diagnosis in patients on long-term renal replacement therapy.

We report the case of a 48-year-old male, whose musculoskeletal manifestations, previously related to long-term renal replacement therapy (RRT), were diagnosed as ankylosing spondylitis when symptoms changed their pattern on daily hemodialysis (DHD). The patient started RRT in 1981; in 1985 he received a cadaver graft, which failed in 1987. Secondary hyperparathyroidism, amyloid geoids, bilateral carpal tunnel syndrome and high aluminium levels were present. Musculoskeletal pain, reported since 1986, involved feet, heels, hips, shoulders, hands, spine. Symptoms impairing daily life did not improve after parathyroidectomy. He developed chronic hypotension and recurrent atrial fibrillation. In 1994 and 1998, because of thoracic pain, coronarography was performed (normal on both occasions). In June 2000, DHD was started. Equivalent renal clearance increased from 9-12 to 15-17 mL/min. Well-being remarkably improved. In September 2000, musculoskeletal pain worsened and bilateral Achilles tendinitis occurred. The worsening of musculoskeletal symptoms despite the improvements in well-being and other dialysis related symptoms prompted a re-evaluation of the case. The diagnosis of ankylosing spondylitis was based on: history of plantar fasciitis, bilateral Achilles tendinitis, inflammatory spinal pain with limitation of lumbar spine mobility (positive Schober test), radiological evidence of grade 2 bilateral sacroiliitis, presence of HLA-B27. This diagnosis cast light on the episodes of chest pain, explained by enthesopathy at the costosternal and manubriosternal joints and atrial fibrillation, due to HLA-B27 associated impairment in heart conduction. This case exemplifies the difficulty of differential diagnosis of multisystem illness in patients with long RRT follow-up.

Referral of type 1 diabetic patients to a nephrology unit: will pre-emptive transplantation change our life?

BACKGROUND: Type 1 diabetic patients are a small but challenging subset of chronic kidney disease. The new frontiers of pancreas-kidney transplantation may enhance the need for early referral. OBJECTIVE: To analyze the referral pattern of type 1 diabetics to a specialized Nephrology Unit, and to quantify the indications for pancreas or pre-emptive pancreas-kidney transplantation at referral in this population. PATIENTS AND METHODS: Setting of study was a Nephrology Outpatient Unit, dedicated to diabetics, active since 1986; period of study 1991--2002. The main biochemical and clinical parameters were analyzed at referral. Indications for transplantation were put at: serum creatinine (sCr)> or =2 mg/dL or > or =3 mg/dL and/or nephrotic syndrome. Pancreas: lesser degrees of functional impairment without worsening after FK-506 challenge. RESULTS: 90 type 1 diabetics were referred: 48 males, 42 females; median age: 38 (18-65) years; median diabetological follow-up 20 (3-37) years; sCr 1.2 (0.6-7) mg/dL, proteinuria 0.9 (0-12.3) g/day; creatinine clearance: 58 (6-234) ml/min; Hbalc: 8.8% (5.9-14), diastolic blood pressure: 80 (55-100) mmHg, systolic blood pressure: 137.5 (70-180) mmHg. 85.6% had signs of end-organ damage due to diabetes. 67% of the patients had diabetic nephropathy, 20.7% hypertensive with or without diabetic nephropathy. According to the chosen criteria, 30.6% had indications for pancreas-kidney graft (sCr > or = 2 mg/dL), 25.9% considering sCr > or = 3 mg/dL; 28.2% further patients could be considered for isolated pancreas graft. CONCLUSIONS: At referral to the nephrologist, over 50% of type 1 diabetics may have indications for pancreas-kidney or pancreas graft; an earlier multidisciplinary work-up is needed to optimize an early pre-emptive transplant approach.

Teenagers' point of view on living donor kidney transplantation: Cinderella or princess?

UNLABELLED: Living kidney donation is an important clinical option, encountering different fortunes in the world. AIM: To analyse the opinions of a large subset of older teenagers attending high school (7999 students, median age 18) on different aspects of living kidney transplantation. METHODS: Analysis of semistructured questionnaires submitted within an educational campaign on dialysis and transplantation in the high schools of Torino and its county (about 2,000,000 inhabitants). RESULTS: Over 90% of the students had already heard of transplantation, mainly via television (88.4% county, 84.5% city). 80% would donate a kidney to a family member (3.5% wouldn't, 16.5% uncertain); answers were correlated with sex (females more than males p<0.0001), school type (istituti tecnici versus licei p=0.007), interest (yes versus other p<0.0001). A lower percent of individuals would receive a kidney (58.4% county, 59.4% city), only 10% would ask for donation. Over 40% of students consider legally buying a kidney a patient's right, only 26.6% would discourage this choice. The answers were correlated with the reverse pattern as for non-mercenary donation with type of school (licei more than istituti tecnici: p<0.0001), sex (males versus females p<0.0001), interest (not versus yes: p=0.002). CONCLUSIONS: Teenagers are favourable towards all forms of living kidney donation. The lower prevalence of positive answers on acceptance versus donation suggests that fears of endangering the donor's health may be one of the causes for a low living donation rate in our setting. The mixed answers on mercenary donation suggest discussing this complex issue in future educational programs.

Cholesterol crystal embolism syndrome in dialysis patients: an emerging clinical diagnosis?

BACKGROUND: Cholesterol crystal embolism syndrome (CCE) is an increasing end-stage renal disease cause. Few cases have been described on dialysis, despite the high prevalence of the predisposing factors. METHODS: The diagnostic criteria of the present study were: skin lesions, myalgia, fatigue, fever and acute inflammatory serologic signs, in the presence of severe vasculopathy. The precipitating factors were: anticoagulation, endovascular intervention and ulcerated atherosclerotic plaque. RESULTS: Between October 2003 and September 2005, CCE was diagnosed in 6 dialysis patients (of 200-210 on chronic treatment): 5 males, 1 female, median age 59.5 years (47-70) and end-stage renal disease follow-up 11.5 years (3-25). All had severe vasculopathy, 5 cardiopathy, and 4 were failed graft recipients. The treatment included: peritoneal dialysis, daily dialysis, 'conventional' hemodialysis (2 cases) and hemodiafiltration. The diagnosis was based on the clinical-laboratory picture in 1 patient. In the 5 others clues were present (dicumarol therapy, angioplasty, femoral artery thrombosis, CCE predialysis and ulcerated aortic plaque). The therapeutic approach consisted of corticosteroids (5 cases), statins (4 cases) and prostaglandin analogues (4 cases). CONCLUSION: The differential diagnosis of CCE should also be considered in dialysis patients (necrotic lesions, limb pain and vasculitis-like signs).

Efficacy of an educational programme for secondary school students on opinions on renal transplantation and organ donation: a randomized controlled trial.

CONTEXT: Organ shortage for transplantation is a crucial problem; educational interventions may increase donations and decrease opposition. OBJECTIVE: To test the efficacy of an educational programme on opinions on organ transplantation and kidney donation. DESIGN AND PARTICIPANTS: Cluster Randomized Controlled Trial: eight intervention and eight control schools were randomly selected from the 33 public schools that agreed to participate. Targets: students in the last 2 years of secondary school (17-18 years); seven schools per group completed the study. EDUCATIONAL PROGRAMME: INTERVENTION: first questionnaire (anonymous); 2 h lesson in each class; 2 h general session with patients and experts; second questionnaire. CONTROL: questionnaires. MAIN OUTCOME MEASURES: Differences between questionnaires (comparative analysis); interest; satisfaction with the programme; (cross-sectional analysis). RESULTS: 1776 first, 1467 second questionnaires were retrieved. Living kidney donation: at baseline 78.8% of students would donate a kidney to a relative/friend in need. The answers were unaffected by type of school but depended on sex (females more prone to donate, P<0.001); the answers did not change after the lessons. Cadaveric kidney donation: baseline opinions were mixed (intervention schools: 31.5% yes, 33.7% no, 34.8% uncertain), depending on type of school (classical-scientific high schools more positive than technical institutes, P<0.001), sex (males more prone to donate, P<0.001). Answers on living and cadaveric donation were correlated (P<0.001). The educational intervention increased favourable (31.5 to 42.9%) and uncertain (34.8 to 41.1%) opinions and decreased negative ones (33.7 to 16%) (P<0.001). CONCLUSIONS: Educational interventions are effective in increasing interest and improving opinions about cadaveric organ donation.

Acute digital gangrene in a long-term dialysis patient -- a diagnostic challenge.

BACKGROUND: Vascular complications are frequent in long-term dialysis patients. The differential diagnosis is complex and includes immunological derangement (underlying disease, uremia), vasculopathic-atheroembolic diseases, calciphylaxis, infections, neoplasm, coagulation disorders, and adverse drug effects. CASE REPORT: We report on a 50-year-old male patient with a long follow-up on renal replacement therapy (20 years), currently on daily hemodialysis. The patient's history of kidney transplantation was complicated by seven acute rejection episodes and by Kaposi sarcoma; comorbidity included HLA-B27 positive ankylosing spondylitis, diffuse vascular disease, recurrent atrial fibrillation, chronic hypotension, HCV positivity. Ten days after the start of warfarin for an atrial fibrillation episode, the patient developed digital necrotising ulcerations, rapidly evolving into partial symmetric digital gangrene at distal phalanxes. The timing and evolution of the lesions and the finding of protein S deficiency were the clues for diagnosing warfarin-induced skin necrosis (WISN); the drug was discontinued and therapy with low-molecular weight heparin, plasma and prostacyclin achieved slow resolution of lesions. CONCLUSIONS: According to a combined MEDLINE and EMBASE search, this is the first report of WISN in a hemodialysis patient: underlining the clinical relevance of this uncommon problem, this case exemplifies the difficult differential diagnosis of acute vascular skin lesions in dialysis