Adult-Onset Henoch-Schonlein Purpura Duodenitis

The trends of pediatric duodenal ulcer and predictors of recurrence

BACKGROUND

Duodenal ulcer (DU) causes various symptoms in children. The prevalence of Helicobacter pylori (Hp)-associated DU has been reducing in some regions, yet the updated trend in Taiwan is unknown. Risk factors of DU recurrence have not been comprehensively investigated in children.

METHODS

This retrospective study included children diagnosed with DU to evaluate the demographics, symptoms, diagnostics, treatment, and outcomes. Specific populations (infant, surgery required) were sorted for subgroup analysis. Predictors of DU recurrence was analyzed in patients who received endoscopic follow-ups.

RESULTS

A total of 488 children were included. Most patients were male (72.5%), school-aged (11.3 ± 4.8 years old), and with varied underlying diseases in one-fifth. The annual incidences were around 3-5%, with a declining trend of case numbers and the Hp-positive proportion. Hp infection, concurrent gastric ulcer, perforation, and mortality were noted in 32.7%, 16%, 1.6%, and 1% of patients. Patients with or without Hp infection showed different clinical features but similar outcomes. The characteristics of subpopulations were depicted respectively. Male sex, lower Hb level, and perforation were independent risk factors associated with recurrence.

CONCLUSIONS

Hp-positive DU seems to wane. Patients with male sex, lower Hb level, or perforation at diagnosis carried a higher risk of recurrence, which may warrant active surveillance and endoscopic follow-up.

Henoch-schonlein purpura following exposure to SARS-CoV2 vaccine or infection: a systematic review and a case report

BACKGROUND

Henoch-Schonlein purpura (HSP) is an IgA-mediated systemic small-vessel vasculitis (IgAV) that typically presents with a variable tetrad of symptoms. HSP if often preceded by respiratory tract infections, vaccinations, drugs or malignancies. During the recent COVID-19 pandemic multiples cases of HSP have been described after both infection and vaccination for SARS-CoV2. This study aims to perform a systematic review of literature and describe an additional complicated case of de-novo HSP appeared after the administration of the third dose of a mRNA-SARS-CoV2 vaccination.

METHODS

Electronic bibliographic research was performed to identify all the original reports describing cases of de-novo HSP or IgAV appeared after respiratory infection or vaccine administration for SARS-CoV2. We included all case series or case reports of patients who respected our inclusion and exclusion criteria.

RESULTS

Thirty-eight publications met our pre-defined inclusion criteria, for an overall number of 44 patients. All patients presented with palpable purpura variable associated with arthralgia, abdominal pain or renal involvement. Increased levels of inflammation markers, mild leukocytosis and elevated D-dimer were the most common laboratory findings. Up to 50% of patients presented proteinuria and/or hematuria. Almost all skin biopsies showed leukocytoclastic vasculitis, with IgA deposits at direct immunofluorescence in more than 50% of cases.

CONCLUSIONS

Our results suggest that the immune response elicited by SARS-CoV2 vaccine or infection could play a role in the development of HSP. Current research suggests a possible role of IgA in immune hyperactivation, highlighted by early seroconversion to IgA found in some COVID-19 patients who develop IgA vasculitis.

Superior mesenteric artery branch pseudoaneurysm rupture mimicking acute pancreatitis in a patient with acute type B aortic dissection: A case report

RATIONALE

Visceral arterial pseudoaneurysms are rare but important vascular entities because of their inclination to cause life-threatening hemorrhage. They were commonly reported to be associated with trauma, infection, inflammatory disease, or occurred as postoperative complication. To date, there has been no published report of a superior mesenteric artery (SMA) branch pseudoaneurysm rupture mimicking acute pancreatitis in a patient with acute type B aortic dissection.

PATIENT CONCERNS

The patient's medical history, clinical information, imaging findings including follow-up computed tomography angiography (CTA), and treatment are reported. A 51-year-old male presenting with epigastric pain and fever was found to have an enlarged pancreatic head and obscure fatty space around it on abdominal nonenhanced CT. He has medical history of anaphylactoid purpura and uncontrolled hypertension. His serum lipase and amylase were both within normal limits. Thoracoabdominal CTA following a sudden blood pressure drop attributed to the accurate diagnosis.

DIAGNOSES

He was diagnosed with acute type B aortic dissection involving SMA and retroperitoneal hemorrhage secondary to SMA branch pseudoaneurysm rupture.

INTERVENTIONS

The patient was successfully treated by thoracic endovascular aortic repair without additional branch intervention.

OUTCOMES

Follow-up CTA at 3 months later demonstrated that the endoprothesis is well positioned with no endoleaks, and SMA branch pseudoaneurysm disappeared.

LESSONS

We report a rare and complicated case presenting with SMA branch pseudoaneurysm rupture and acute type B aortic dissection. CTA is vital in the diagnosis of such vessel pathology. We must inspect carefully to ensure that no small lesions are missed.

Late Relapse of Henoch-Schönlein Purpura in an Adolescent Presenting as Severe Gastroduodenitis

Henoch-Schönlein purpura is a systemic vasculitis, commonly affecting children. Gastrointestinal manifestations are observed in 50-75% of patients; it is well known they may occur before skin lesions in about 20% of cases during the first vasculitic episode. Relapses occur in about one third of patients, typically within 4 months from the initial presentation and with milder symptoms. We report the case of a 17-year old girl with an atypical relapse of Henoch-Schönlein purpura, presenting with acute abdominal symptoms 5 years after the first episode. Esophagogastroduodenoscopy showed duodenal multiple hyperemic and hemorrhagic lesions. To our knowledge this is the first case of hemorrhagic-erosive duodenitis representing a relapse of Henoch-Schönlein purpura occurring several years after the initial episode. Duodenojejunal inflammation should be considered as primary manifestation of Henoch-Schönlein purpura, not only during the first episode, but also in relapses. Endoscopy can be helpful for differential diagnosis, especially in patients with atypical manifestations. Further studies are needed to evaluate risk factors for Henoch-Schönlein purpura recurrence and the possible role of fecal calprotectin as an early marker for gastrointestinal involvement.