ABSTRACT
Organ transplant recipients (OTRs) are highly vulnerable to SARS-CoV-2 infection and routine transplant consultations were converted primarily to virtual (VC) rather than face to face (F2F) from the outset of the pandemic. A similar strategy was adopted in our tertiary OTR dermatology clinic, but the implications of this on safe and effective skin cancer surveillance are uncertain. We audited clinical and patient experiences of our hybrid service with the aim of identifying the benefits and limitations of this approach, and improvements required to optimize a future hybrid VC-F2F model for skin cancer surveillance. All OTRs consultations held between 1 April 2020 to 31 March 2021 were identified through electronic patient records. Data collected included proportions and reasons for VC and F2F consultations, teledermatology requests, VC to F2F conversion rate, rates of skin cancer diagnoses and adherence to established follow-up protocols. All patients were invited to complete an online service evaluation. In total, 554 encounters (80.3% VC, 19.7% F2F) were recorded in 247 OTRs (42% with previous skin cancer). Of routine F2F consultations, this was patient preference in 17 of 109 (16%) and clinician-based risk assessment for the remainder. In 108 (25%) VCs, photographs were requested and received for 63%, of which 82% were adequate for diagnosis. Overall, 12% of VCs were converted to F2F and in 19 of 45 (42%) OTRs this was due to suspected skin cancer, which was confirmed in nine of 19 (47%). All other skin cancers were diagnosed in routine F2F consultations. Surveillance in 167 of 192 (87%) assessable OTRs adhered to established follow-up protocols. Of patients who responded to the online survey, 74% felt that there were benefits to VCs, but 41% expressed concern about the lack of skin examination and 57% reported little/no confidence in self-monitoring. Despite this, 59% expressed a preference to continue hybrid VC-F2F surveillance, with VC as routine and F2F consultation when required. Our audit provides preliminary evidence supporting the effectiveness, safety and patient acceptability of a VC-F2F hybrid model for the delivery of OTR skin cancer surveillance. We did not identify major delays in skin cancer diagnosis, although not all patients have yet been seen F2F. Certain aspects of service delivery will require optimization. In particular, despite routine skin cancer education, many patients expressed concerns about self-monitoring. Programmes specifically tailored to address this need will be required, as will information technology support for some OTRs. With this information we are redesigning our service to incorporate a VC-F2F model for routine skin cancer surveillance and are evaluating the incorporation of a patient-initiated follow-up pathway.
ABSTRACT
Graft-versus-host disease (GvHD) is common after haematopoietic cell transplantation (HCT). Mucocutaneous manifestations are variable and may simulate autoimmune bullous dermatoses. However, the association of GvHD with autoimmune disorders, including bullous dermatoses, is also well recognized. We describe a patient with GvHD in whom severe and relapsing epidermolysis bullosa acquisita (EBA) was diagnosed 3 years after transplant and propose a causal association with GvHD. A 66-year-old woman developed GvHD following allogeneic HCT for acute myeloid leukaemia in 2016. This affected her gastrointestinal tract and skin but improved with oral corticosteroids and ciclosporin. In 2019 she presented with a widespread rash consisting of large, tense, haemorrhagic blisters. Histological features were in keeping with EBA. Direct immunofluorescence was also consistent with EBA, demonstrating linear positivity for IgG and C3 confined to the blister base, as was detection of collagen VII antibodies on indirect immunofluorescence. She was admitted and treated with high-dose oral steroids, ciclosporin and intravenous immunoglobulin (IVIg) with eventual resolution of blistering. Although further IVIg administration was planned as an outpatient, this coincided with the start of the COVID-19 pandemic and she elected not to attend and also stopped all medication. Despite this, her EBA remained quiescent until September 2021 when she was readmitted with a severe deterioration in blistering and significant dysphagia due to an oesophageal stricture, with a weight of 31.7 kg. Once again, she responded rapidly to oral prednisolone and IVIg. Dapsone was considered but precluded by G6PD deficiency and there were clinical and adherence concerns about using mycophenolate mofetil. Upon discharge she was again nonadherent to medication and failed to attend for planned IVIg. She flared and was admitted for a third time in December 2021, requiring gastrostomy for nutritional support;her weight at this time was 26.4 kg. Her EBA is currently well controlled on prednisolone and IVIg. EBA is a rare, acquired blistering disorder secondary to autoantibodies targeting type VII collagen. Previous studies have found circulating basement membrane zone (BMZ) antibodies in 24% of chronic GvHD patients, possibly generated in response to chronic BMZ damage (Hofmann SC, Kopp G, Gall C et al. Basement membrane antibodies in sera of haematopoietic cell recipients are associated with graft-versushost disease. J Eur Acad Dermatol Venereol 2010;24: 587-94). Corresponding clinical manifestations are rare, with bullous pemphigoid the most frequently reported. EBA is much less common with four previously reported cases [Brassat S, Fleury J, Camus M, et al. (Epidermolysa bullosa acquisita and graftversus- host disease). Ann Dermatol Venereol 2014;141: 369-73 (in French)]. As a fifth case of EBA, our patient provides further evidence of a likely pathophysiological relationship between GvHD and autoimmune subepidermal bullous dermatoses, and highlights the significant challenges of managing these vulnerable patient groups during the COVID-19 pandemic.