Duodenal obstruction due to Henoch-Schönlein purpura

[Abdominal manifestations of Henoch-Schönlein purpura in adults. A retrospective study of 23 cases]

INTRODUCTION

Gastrointestinal manifestations of Henoch-Schönlein purpura (HSP) in adults may be severe. Data about treatment are controversial and the outcome is seldom described.

METHODS

Twenty-three patients with gastrointestinal manifestations of HSP (ACR criteria) were retrospectively studied. We proposed to use clinical and radiological (CT scan) severity scores to assess the usefulness and the efficacy of corticosteroid therapy.

RESULTS

Age at onset ranged from 16 to 80 years (median 39). Gastrointestinal manifestations included abdominal pain (96%), vomiting (52%), gastrointestinal bleeding (39%), diarrhoea (13%) and intestinal obstruction (9%). Scores of disease clinical severity were calculated in 21 patients. Fourteen, three and four had severe, intermediate and mild disease, respectively. Ten patients in the group with severe clinical involvement underwent CT scan that showed severe radiological involvement (parietal thickening of several bowel loops of the same segment or several segments with ileal involvement). Eleven patients out of 14 with clinically severe disease were given corticosteroids. Two patients out of three with intermediate and three patients out of four with mild scores also received corticosteroids. The others received supportive care. In-patients with severe clinical scores, gastrointestinal symptoms improved within 2 days when they were given corticosteroids and within 12.3 days without corticosteroids (p<0.0002). No side effect was observed with steroid therapy.

CONCLUSION

These results suggest that corticosteroids may reduce abdominal symptoms of HSP in adults with clinically severe disease. They are safe when CT scan is performed.

Gastrointestinal manifestations of Henoch-Schonlein Purpura

Henoch-Schonlein Purpura (HSP) is the most common systemic vasculitis in childhood. The diagnostic criteria include palpable purpura with at least one other manifestation -- abdominal pain, IgA deposition, arthritis or arthralgia, or renal involvement. Immune complex deposits result in necrosis of the wall of small- and medium-sized arteries with infiltration of tissue by neutrophils and deposition of nuclear fragments, a process called leukocytoclastic vasculitis (LCV). It is often associated with infections, medications, or tumors. It may coexist with or mimic Crohn's disease. Periumbilical and epigastric pain worsens with meals, from bowel angina. Bleeding is usually occult or, less commonly, associated with melena. Intussusception, the most common surgical complication, is usually ileo-ileo or ileo-colic. Perforations, usually ileal, may occur spontaneously or be associated with intussusception. Ultrasound, recommended as the first diagnostic test, and CT scans may show intussusception and asymmetric bowel wall thickening mainly involving the jejunum and ileum. There are a range of endoscopic findings including gastritis, duodenitis, ulceration, and purpura, with the second portion of the duodenum characteristically being involved more than the bulb. Intestinal biopsies show IgA deposition and LCV in the submucosal vessels. Superficial biopsies may show inflammation, ulceration, edema, hemorrhage, and vascular congestion, presumably due to vasculitis-induced mucosal ischemia. The efficacy of corticosteroids in preventing severe complications or relapses is controversial. The majority of patients, however, improve spontaneously.

Isolated colonic leukocytoclastic vasculitis causing segmental megacolon: report of a rare case

We report the case of a 44-year-old white man who presented with progressively worsening crampy abdominal pain and distention. Deterioration of his clinical picture along with leukocytosis and radiographic evidence of severe colonic dilation rendered exploratory laparotomy necessary. Greatly distended and inflamed transverse and descending colon were evident and an extended left colectomy was performed. Characteristic changes of leukocytoclastic vasculitis in the serosal and muscular layers of the resected colon were demonstrated at histopathologic examination. Systemic leukocytoclastic vasculitis, usually coexisting with Henoch-Schonlein purpura, commonly affects the small bowel with clinical evidence of ischemia or bleeding. Colon involvement is infrequently reported in the context of systemic disease. Isolated colonic leukocytoclastic vasculitis without extraintestinal manifestations is rare. A previously unreported case of localized leukocytoclastic vasculitis of the left colon resulting in the impressive presentation of megacolon, without the presence of any precipitating factor or associated systemic disease is presented here, with an overview of the related literature.

[Value of abdominal-pelvic computed tomography in adult rheumatoid purpura]

PURPOSE

Henoch-Schonlein purpura is a rare eventuality in adulthood. Abdominal involvement can worsen the short-term prognosis and justify medical treatment to avoid surgery.

METHODS

Abdominopelvic computed tomography (CT) was performed in six adult patients (four men and two women; age range, 19-74 years) with Henoch-Schonlein purpura before any treatment. Abdominal symptoms were concomitant with the purpuric rash in two cases and followed it in the other cases.

RESULTS

The small bowel was always involved with a parietal thickening, and the target sign was observed in three patients. The lesions were located in the duodenum in two patients, the jejunum in two and the ileum in five. Two segments were involved in one patient and three segments in another patient. A peritoneal effusion was always present. No colonic lesion was discovered on CT. Once the results were known, all patients received steroids with initially intravenous methylprednisolone in five patients at doses ranging from 80 to 1,000 mg/day. On follow-up, none of the patients underwent surgery.

CONCLUSION

Abdominopelvic CT scan demonstrated signs suggestive of intestinal vasculitis. An underlying neoplasia or an eventual other cause of abdominal pain were explored and a steroid therapy was then began with a good outcome. Abdominal CT can be helpful in the diagnosis of abdominal involvement in Henoch-Schonlein purpura.

Henoch-Schönlein purpura in children. Report of 100 patients and review of the literature

Henoch-Schönlein purpura (HSP) is an acute leukocytoclastic vasculitis that primarily affects children. In the current report, the author presents the clinical features of 100 children with HSP and reviews the literature, placing particular emphasis on new information concerning the etiology, immunopathogenesis, and treatment of HSP. The dominant clinical features of HSP are cutaneous purpura (100%), arthritis (82%), abdominal pain (63%), gastrointestinal bleeding (33%), and nephritis (40%). The etiology of HSP remains unknown, but it is clear that IgA plays a critical role in the immunopathogenesis of HSP, as evidenced by increased serum IgA concentrations, IgA-containing circulating immune complexes, and IgA deposition in vessel walls and renal mesangium. There are 2 subclasses of IgA, but HSP is associated with abnormalities involving IgA1 exclusively, and not IgA2. This finding may be a consequence of abnormal glycosylation of O-linked oligosaccharides unique to the hinge region of IgA1 molecules. Although several lines of evidence suggest a genetic susceptibility to HSP, the fundamental basis for the abnormalities involving IgA remain unclear. In general, HSP is an acute, self-limited illness, but one-third of patients will have 1 or more recurrences of symptoms. Corticosteroid therapy may hasten the resolution of arthritis and abdominal pain, but does not prevent recurrences. To date, no form of therapy has been shown to shorten appreciably the duration of HSP. The long-term prognosis of HSP is directly dependent on the severity of renal involvement. Corticosteroids in usual doses have no effect on established nephritis. Evidence is emerging that treatment with high-dose intravenous pulse methylprednisolone coupled with azathioprine or cyclophosphamide may be beneficial in patients with severe nephritis.