The effects of a new decontaminant solution on root canal bleeding during endodontic treatment: a randomized controlled study.

Blood contamination of the canal during preparation and obturation can be a problem in Endodontics; this may result in apical microleakage. The purpose of this investigation was to observe and evaluate the hemostatic properties of biofilm decontaminant material (sulfonic/sulphuric acid solution, HybenX, EPIEN Medical) used in teeth with necrotic pulp and unstoppable bleeding after root canal shaping. A prospective study was designed with 2 randomized parallel groups: decontaminant material (experimental group) and sodium hypochlorite 5% (control group). The analysis of the root canal bleeding was evaluated by the clinician before and after the application of the sulfonic/sulphuric solution or sodium hypochlorite 5%, by measuring the millimeters of blood on a sterile paper point introduced in the root canal. Sixty patients with necrotic pulp and unstoppable bleeding were enrolled in this study and randomly divided into 2 groups: decontaminant material in 30 patients (experimental group) or sodium hypochlorite 5% in 30 patients (control group). T-test showed that the percentage change in millimeters of blood detected in the root canal was statistically greater for experimental group [mean difference: 0.74 (IC: 0.66-0.82); p less than 0.0001]. The hemostatic properties were better in the experimental group than in the sodium hypochlorite 5% group (control). Further research may be needed to confirm the results of this study..

Detection of Orthobunyavirus in mosquitoes collected in Argentina.

Bunyamwera virus (BUNV) (Bunyaviridae, genus Orthobunyavirus, serogroup Bunyamwera) is considered an emerging pathogen for humans and animals in American countries. The CbaAr-426 strain of BUNV was recovered from mosquitoes Ochlerotatus albifasciatus (Diptera: Culicidae) collected in Córdoba province (Argentina), where serological studies detected high seroprevalences in humans and animals. Molecular detection of Orthobunyavirus was performed in mosquitoes collected in Córdoba province. Seventeen mosquito pools of Oc. albifasciatus, Ochlerotatus scapularis and Culex quinquefasciatus (Diptera: Culicidae) showed positive results; four of these positive pools, all of Oc. scapularis, were sequenced. All amplicons grouped with BUNV in the Bunyamwera serogroup. The findings highlight the circulation of BUNV in Córdoba province and represent the first report of BUNV-infected Oc. scapularis mosquitoes in Argentina.

Mesocolic hernia: an unusual internal hernia.

Internal hernia may be either congenital or acquired. Its incidence has been reported to be 1-2%. Herniation may be persistent or intermittent. Internal hernia is a rare cause of small bowel obstruction with a reported incidence of 0.2-0.9%. The most common type is paraduodenal. Less common types include mesocolic hernia, which occurs following abdominal surgery. We report mesocolic hernias in two young patients, which presented as small bowel obstruction without any prior abdominal surgery.

A rare cause of haematemesis: retrograde jejunogastric intussusception.

Retrograde Jejunogastric intussusception is a well-recognised, rare but potentially fatal, long-term complication of gastro-jejunostomy or Billroth-II reconstruction. Only about 200 cases have been reported in literature to date. Diagnosis of this condition is difficult in most of the cases. To avoid mortality early diagnosis and prompt surgical intervention is mandatory. Since gastrojejunostomies with vagotomy are on a declining trend, it is extremely rare to come across such a complication. We report such a case that presented with haematemesis.