A Tale of Two Surveys: Life-Affirming Strategy of Mortuary Improves the Quality of Bereavement Care After Hospital Death.

Background: The mortuary plays an important, under-recognized role in end-of-life care. A 'Life-affirming strategy' was introduced in the mortuary of a university hospital to enhance respect for the deceased and next-of-kin (NOK). Design: NOK who collected bodies in the mortuary of a university hospital participated in a survey. The satisfaction scores, needs and expectations were compared with a similar survey from 2015. Results: The overall experience for NOK improved significantly compared with 2015. The greatest improvement was achieved in 'mortuary environment', 'attitude of mortuary staff' and 'body viewing arrangement in the mortuary'. The perceived need for additional psychosocial support was significantly reduced. Conclusions: Results demonstrate success of the life-affirming strategy in enhancing end-of-life care for bereaved families. The person-centered approach modernizes and professionalizes mortuary services, with a positive impact on the deceased, NOK, mortuary staff, hospital administration and wider community.

Clinicopathological features of Chinese patients with B-cell lymphoproliferative disorders and kidney infiltration.

AIM: Direct kidney involvement in B-cell lymphoproliferative disease is a rare disorder with only a few studies reported in Caucasian patients. The clinicopathological characteristics and outcome of this entity remain poorly described. METHODS: We retrospectively studied all adult Chinese patients who had histology-proven renal parenchymal infiltration by malignant B-cells between 1 January 2000 and 31 December 2018 at two tertiary hospitals in Hong Kong. Clinical, pathological and radiological data were collected from 20 patients. Follow-up data were analysed until 31 December 2019. RESULTS: Median follow-up duration was 22 (1-171) months. Only seven patients (35%) had established diagnosis of haematological cancer before kidney biopsy. Diffuse large B-cell lymphoma (DLBCL) was the most common subtype in our cohort (n = 5, 25%). Others included low-grade B-cell lymphoma (n = 11), intravascular large B-cell lymphoma (n = 1), mantle cell lymphoma (n = 1) and multiple myeloma (n = 2). Fourteen patients (70%) presented with AKI while 12 patients (60%) had proteinuria. Seven patients (35%) had unilateral renal mass, one had bilateral renal masses and one had bilateral diffuse nephromegaly in computed tomography. Lymphomatous tubulointerstitial infiltration was the prevalent histological finding. Nine patients (45%) had coexisting renal lesions other than direct tumour infiltration. All but one patient received chemotherapy. Ten patients died and renal responders had a significantly better survival than non-renal responders (p = .03). CONCLUSION: Direct tumour infiltration can occur in a wide variety of B-cell lymphoproliferative disorders. Coexisting immunoglobulin-related nephropathy is frequently found. Renal biopsy is required for early diagnosis which allows timely and appropriate treatment.

Clinicopathological study of renal biopsies after liver transplantation.

OBJECTIVE: To perform a clinicopathological study of patients having renal biopsies after liver transplantation. DESIGN: Case series. SETTING; Queen Mary Hospital, Hong Kong. PATIENTS: All post-liver transplantation patients who had a renal biopsy in the period from January 2000 to December 2010. RESULTS: Eleven renal biopsies were retrieved for review from 10 patients with liver transplantation. The male-to-female ratio was 9:1 (age range, 47-63 years). The median liver transplant-to-renal biopsy interval was 1590 (range, 102-3699) days. The predominant histological changes were interstitial fibrosis and tubular atrophy. Diabetic nephropathy (n=6) and immunoglobulin A nephropathy (n=4) were the commonest glomerulopathies. Only one patient had chronic calcineurin inhibitor nephrotoxicity. With a mean follow-up of 53 months, three patients died 2 to 53 months post-renal biopsy. All surviving patients had chronic renal impairment. Five patients developed end-stage renal failure and four had significant persistent proteinuria. CONCLUSION: Renal pathology was variable after liver transplantation; most biopsies showed complex renal lesions, whilst calcineurin inhibitor nephrotoxicity was rare. The recognition of kidney histology attributable to metabolic derangements after liver transplantation is potentially important in the interpretation of renal biopsy specimens and patient management. The renal outlook of this group of patients is guarded.

Determination of mismatched donor HLA in kidney transplant recipients with unknown donor HLA phenotypes.

OBJECTIVE: To determine donor human leukocyte antigen (HLA) from renal allograft biopsies in transplant recipients whose donor HLA phenotype is not known. METHODS: Renal allograft biopsies were obtained from seven renal transplant recipients when indicated for allograft dysfunction or proteinuria. DNA was extracted fresh from allograft specimens, and HLA typing was performed with polymerase chain reaction-specific sequence primers (PCR-SSP) and polymerase chain reaction-sequence-specific oligonucleotides (PCR-SSO). RESULTS: HLA typing of the seven renal allograft biopsies was composed of both recipient and donor HLA phenotypes, allowing the determination of the donor HLA and the degree of HLA mismatching. CONCLUSIONS: Deducing mismatched donor HLA antigens in renal allograft recipients enables detection of donor-specific antibodies, and the management of humoral rejection, and enables more appropriate selection of a donor organ should future retransplantation be required.

BK virus nephropathy due to KOM-3 strain.

Interstitial nephritis caused by BK polyomavirus is an important complication of kidney transplantation. A diagnosis of BK virus nephropathy is established by a combination of characteristic histological, immunostaining, and ultrastructural findings. We report the first documented case of BK virus nephropathy caused by the KOM-3 strain in a patient after kidney transplantation. The biopsy specimen showed the characteristic histological and ultrastructural findings of BK virus, but was negative on immunostaining with a monoclonal antibody directed against BK virus large T antigen (LTag). Kidney tissue was subjected to polymerase chain reaction amplification using BK virus LTag-specific primers followed by DNA sequencing. Sequence results showed 100% homology to the KOM-3 strain, which has a 4-amino acid deletion in the C terminus of LTag compared with the reference sequence DUN strain. This deletion can explain the negative immunostaining results because the monoclonal antibody is directed against an epitope in this region. The patient lost his graft 2 months after diagnosis. Pathologists should be aware of this potential pitfall in interpreting immunostaining for BK virus. The incidence and prognostic implications of KOM-3 strain require additional studies.

A young Chinese man with nephrotic syndrome due to lipoprotein glomerulopathy.

Lipoprotein glomerulopathy (LPG) is a rare autosomal dominant renal disease with incomplete penetrance, associated with specific protein-modifying mutations in the APOE gene. LPG is associated with poor renal prognosis, in which lipoprotein thrombi are seen in the glomerular capillaries. Dyslipidemia in LPG generally resembles type III hyperlipoproteinemia with elevated serum apolipoprotein E level. Fibrate is the most frequently reported lipid-lowering therapy in LPG as hypertriglyceridemia is common in these individuals. There are few existing case reports on effectiveness of statin monotherapy for LPG. We report a 32-year-old Chinese man who presented with nephrotic syndrome, renal impairment, severe hypercholesterolemia without hypertriglyceridemia, and hypertension. Renal biopsy confirmed lipoprotein glomerulopathy. Genetic testing confirmed APOE Kyoto mutation. Anti-hypertensive therapy, including angiotensin receptor blocker, and statin were initiated. Concomitant with normalization of lipid profile, his proteinuria markedly improved, and his renal function has remained stable up to 3 years, demonstrating sustained benefit with statin monotherapy in LPG.

Clinicopathologic analysis of renal biopsies after haematopoietic stem cell transplantation.

AIM: The ever-growing number and increasing survival of haematopoietic stem cell transplantation (HSCT) allow better recognition of its associated renal injuries. We aimed to study the clinicopathologic features of renal biopsies after HSCT by reviewing 13 percutaneous renal biopsies in our institute (Queen Mary Hospital). METHODS: A retrospective clinicopathologic study of all renal biopsies archived to the Department of Pathology, Queen Mary Hospital during the period January 1999 to December 2006 was performed. Biopsies from patients with HSCT were selected. Clinical data on presentation and follow up were retrieved from hospital records and physicians. RESULTS: In the 8-year period, a total of 2233 native renal biopsies were archived. Thirteen renal biopsies were selected from 12 patients with HSCT (11 allogeneic, one autologous). All but one patient were male. The age at renal biopsy ranged from 7 to 63 years (median: 32 years). The median interval of renal biopsy after HSCT was 24 months (range 1-134 months). Evidence of graft-versus-host disease was found in nine patients. The most common presentation was significant proteinuria (10 cases) and renal impairment (eight cases). The predominant histological changes were membranous glomerulonephritis (n = 4) and thrombotic microangiopathy (n = 4). One case of focal segmental glomerulosclerosis, IgA nephropathy, minimal change disease, acute tubular necrosis and hypertensive nephrosclerosis were also recorded. Four of our patients died at 0-11 months after renal biopsy. Of the remaining eight patients with a mean follow up of 43.6 months (range, 10-98 months), chronic renal impairment were found in three (37.5%) patients and significant proteinuria also persisted in three. One patient had cytogenetic evidence of relapse of underlying haematological malignancy after HSCT. CONCLUSION: Among the various renal lesions after HSCT, membranous glomerulonephritis and thrombotic microangiopathy were the most common. Mechanisms of renal injury varied from graft-versus-host disease-associated immune complex deposition to non-immune complex injury on endothelial cells, glomerular epithelial cells and tubular epithelium. Pathologists and clinicians should attend to the histological and temporal heterogeneity of renal injury when managing patients after HSCT.

A Modified Protocol with Improved Detection Rate for Mis-Matched Donor HLA from Low Quantities of DNA in Urine Samples from Kidney Graft Recipients.

BACKGROUND: Urine from kidney transplant recipient has proven to be a viable source for donor DNA. However, an optimized protocol would be required to determine mis-matched donor HLA specificities in view of the scarcity of DNA obtained in some cases. METHODS: In this study, fresh early morning urine specimens were obtained from 155 kidney transplant recipients with known donor HLA phenotype. DNA was extracted and typing of HLA-A, B and DRB1 loci by polymerase chain reaction-specific sequence primers was performed using tailor-made condition according to the concentration of extracted DNA. RESULTS: HLA typing of DNA extracted from urine revealed both recipient and donor HLA phenotypes, allowing the deduction of the unknown donor HLA and hence the degree of HLA mis-match. By adopting the modified procedures, mis-matched donor HLA phenotypes were successfully deduced in all of 35 tested urine samples at DNA quantities spanning the range of 620-24,000 ng. CONCLUSIONS: This urine-based method offers a promising and reliable non-invasive means for the identification of mis-matched donor HLA antigens in kidney transplant recipients with unknown donor HLA phenotype or otherwise inadequate donor information.

Paraneoplastic minimal change nephropathy: a diagnostic challenge.

INTRODUCTION: Myeloma-associated glomerulopathy could mimic idiopathic minimal change nephropathy, which poses a diagnostic challenge to nephrologists. CASE REPORT: A 60-year-old patient presented with nephrotic range of proteinuria. Serum creatinine level was normal. Immune markers and tumor markers were unrevealing. No monoclonal protein was detected on serum protein electrophoresis. Renal biopsy showed marked effacement of foot processes and no evidence of immunoglobulin or amyloid deposition on electron microscopy/immunofluorescence staining, compatible with idiopathic minimal change nephropathy histologically. However, proteinuria persisted despite steroid treatment. In view of the atypical course of the disease, workup for secondary glomerulopathy was repeated and paraproteinuria was unexpectedly found. Subsequent bone marrow examination confirmed light chain myeloma. CONCLUSION: Urine protein electrophoresis and serum/urine immunofixation are useful tests to detect the monoclonal protein in suspicious cases.

Pneumococcal native aortic valve endocarditis with mycotic abdominal aortic aneurysm, paraspinal and iliopsoas abscesses and pneumonia revealing a multiple myeloma.

We report a rare case of multiple myeloma presenting with native aortic valve endocarditis with secondary embolic mycotic abdominal aortic aneurysm, contiguous paraspinal and iliopsoas abscesses, and pneumonia due to Streptococcus pneumoniae in a Chinese man. He was treated with aortic valve replacement, endovascular stenting of aneurysm, image-guided drainage of abscesses, and a 6-week course of endocarditic antibiotic therapy followed by chronic suppressive antibiotic therapy. Cases of multiple myeloma presenting with invasive pneumococcal infection were reviewed.

Incidence and outcome of antiglomerular basement membrane disease in Chinese.

BACKGROUND: Antiglomerular basement membrane (anti-GBM) disease is an uncommon disease, especially among Asian population. Many reports and studies on this condition in the Caucasian population are available, but little information exists on anti-GBM disease in Asians. To study the incidence and clinical characteristics of anti-GBM disease among Chinese patients, we reviewed our experience of anti-GBM disease in our hospital (Queen Mary Hospital, Hong Kong) from 1992 to 2003. METHODS: All patients who were admitted for acute renal impairment, which was caused by crescentic glomerulonephritis associated with linear immunoglobulin G (IgG) staining on immunofluorescence, were included in the analysis. Serum anti-GBM antibodies were detected by either enzyme-linked immunofluorescence or indirect immunofluorescence. Ten patients were treated for anti-GBM disease during this 11-year period, yielding an incidence of approximately 0.6 cases per million population per year. RESULTS: In this cohort, anti-GBM disease predominantly affected older patients (mean age: 58.6 +/- 21.7 years). Eight patients were aged between 60 and 80 years and there was a female preponderance (M:F = 2:8). The 1-year renal and patient survival was 15% (95% CI 0-40%) and 70% (95% CI 42-98%), respectively. Most patients presented with non-specific symptoms as well as impaired renal function. Detection of anti-GBM antibody provided a good screening test for the disease. Antiglomerular basement membrane antibodies were not detected in two patients. All but two patients received steroid, cyclophosphamide and intensive plasmapheresis therapy. Haemoptysis occurred in four patients (40%), and usually lagged behind the renal presentation and commencement of treatment. Six patients required long-term dialysis after the acute disease. Three patients died from the disease, two died from pulmonary complications and one died suddenly after a partial recovery of renal function. CONCLUSION: Antiglomerular basement membrane disease is uncommon among the Chinese population. It predominantly affects older patients, and prognosis is poor. Long-term preservation of renal function after the initial attack is unusual.