Systematic review with meta-analysis: the prevalence of bile acid malabsorption and response to colestyramine in patients with chronic watery diarrhoea and previous cholecystectomy.

BACKGROUND: A limited number of small-sized studies suggest that bile acid diarrhoea is frequent in patients with chronic watery diarrhoea and previous cholecystectomy. AIM: To perform a systematic review and meta-analysis to assess the prevalence of bile acid diarrhoea in patients with chronic watery diarrhoea and previous cholecystectomy, and their response to colestyramine, including a new consecutive series of patients. METHODS: MEDLINE and EMBASE were searched up to January 2018. Selected studies included patients with previous cholecystectomy and chronic watery diarrhoea assessed by the 23-seleno-25-homotaurocholic acid (SeHCAT) test. We calculated the pooled rate of bile acid diarrhoea using the inverse double arcsine square root method. Additionally, the medical records of 291 consecutive patients with chronic watery diarrhoea in whom a SeHCAT test was performed were retrospectively reviewed and 74 with previous cholecystectomy were included in the meta-analysis. RESULTS: The search strategy identified eight relevant studies, which, together with the data of the present series, comprise 361 individuals. The pooled bile acid diarrhoea rate was 70% (95% CI 56%-82%), and was similar when using cut-offs of 10% or 15%. There was substantial heterogeneity (I2  = 84%). Five studies comprising 166 patients evaluated the effect of colestyramine in patients with bile acid diarrhoea. The pooled colestyramine response rate was 79% (95% CI 63%-91%) with substantial heterogeneity (I2  = 73%). CONCLUSIONS: Two-thirds of patients with chronic watery diarrhoea and previous cholecystectomy have bile acid diarrhoea. Response to colestyramine in these patients is good.

Phlegmonous gastritis: A rare entity as a differential diagnostic of an acute abdomen. Description of a case and a bibliographic review.

Phlegmonous gastritis is a rare bacterial infection of the gastric wall, which progress rapidly. It is characterized by a purulent inflammation that can affect the entire gastrointestinal tract and presents a high mortality rate. We are reporting a case of phlegmonous gastritis in an HIV-seropositive man successfully treated with antibiotics. Moreover, a review of the English andSpanish literature is carried out, from 1980 to the present time.The most frequently involved microorganism is Streptococcus spp. (57 %), but the polimicrobial infection is also frequent (17 %). The most important symptom is the intensive epigastric pain associated with vomits and most cases were diagnosed by CT and/or fibrogastroscopy. There are many existing risk factors described.The main one is the immunesuppression, although in 40 % of the cases no risk factors were identified. The global mortality is 27 % without identifying significant differences between antibiotics and surgical treatment, for that reason it is recommended to initiate antibiotic treatment right from the beginning and postponing surgery for the refractory cases and complications.

Gastritis flemonosa: una entidad poco frecuente como diagnóstico diferencial del abdomen agudo. Descripción de un caso y revisión bibliográfica / Phlegmonous gastritis: a rare entity as a differential diagnostic of an acute abdomen. Description of a case and a bibliographic review

La gastritis flemonosa es una infección bacteriana poco frecuente y rápidamente progresiva de la pared gástrica. Se caracteriza por una inflamación purulenta que puede afectar a todo el tracto gastrointestinal y que presenta un índice elevado de mortalidad. En este trabajo se comunica un caso de gastritis flemonosa en un paciente seropositivo para la infección por VIH tratado exitosamente con antibioticoterapia. Además, se realiza una revisión de los casos publicados en la bibliografía médica, en inglés y español desde 1980 hasta la actualidad. El microorganismo más frecuentemente implicado es Streptococcus spp. (57 %), pero también destaca la infección polimicrobiana (17 %). El síntoma más común es el dolor epigástrico intenso asociado a vómitos y la mayoría de casos fueron diagnosticados mediante TC y/o endoscopia. Existen numerosos factores de riesgo descritos, el principal es la inmunosupresión, aunque en el 40 % de los casos no se identificó ningún factor de riesgo. La mortalidad global es del 27 %, sin identificar diferencias significativas entre el tratamiento antibiótico y quirúrgico, por lo que se recomienda instaurar el tratamiento antibiótico de manera precoz y reservar la cirugía para los casos refractarios y las complicaciones (AU)

Phlegmonous gastritis is a rare bacterial infection of the gastric wall, which progress rapidly. It is characterized by a purulent inflammation that can affect the entire gastrointestinal tract and presents a high mortality rate. We are reporting a case of phlegmonous gastritis in an HIV-seropositive man successfully treated with antibiotics. Moreover, a review of the English and Spanish literature is carried out, from 1980 to the present time. The most frequently involved microorganism is Streptococcus spp. (57 %), but the polimicrobial infection is also frequent (17 %). The most important symptom is the intensive epigastric pain associated with vomits and most cases were diagnosed by CT and/ or fibrogastroscopy. There are many existing risk factors described. The main one is the immunesuppression, although in 40 % of the cases no risk factors were identified. The global mortality is 27 % without identifying significant differences between antibiotics and surgical treatment, for that reason it is recommended to initiate antibiotic treatment right from the beginning and postponing surgery for the refractory cases and complications (AU)