Evaluation of the Diagnostic Sensitivity of Digital Vibration Sensors Based on Capacitive MEMS Accelerometers.

In recent years, there has been an increasing use of digital vibration sensors that are based on capacitive MEMS accelerometers for machine vibration monitoring and diagnostics. These sensors simplify the design of monitoring and diagnostic systems, thus reducing implementation costs. However, it is important to understand how effective these digital sensors are in detecting rolling bearing faults.

Stress ulcer prophylaxis in critically ill patients: a randomized controlled trial.

Background/aims: Critically ill patients especially who require mechanical ventilation or have coagulopathy are at increased risk for stress-related gastrointestinal hemorrhage. There are conflicting data on the efficacy and complication rates of various prophylactic regimens.

Methodology: Our single-center randomized, placebo-controlled study included 287 patients with high risk for stress-related upper gastrointestinal hemorrhage (>48 h mechanical ventilation, coagulopathy).

Helicobacter pylori is not a risk factor for stress ulcer bleeding in polytraumatized patients.

Background/aims: The pathogenesis of acute stress-related hemorrhage in critically ill polytraumatized patients is uncertain and any role of Helicobacter pylori infection is unknown. The aim of our study was to evaluate the relationship between Helicobacter pylori serological status of patients developing stress-related bleeding and those with no appearance of upper gastrointestinal bleeding.

Methodology: In our single-center prospective cohort study we investigated over a 3-year period all consecutive patients with upper gastrointestinal hemorrhage for Helicobacter pylori infection by serology.

[CRASH--the first large randomized controlled study of head injuries].

CRASH (www.crash.lshtm.

[Preventive sclerotherapy of esophageal varices with a high risk of hemorrhage: a prospective randomized controlled study].

Endoscopic sclerotherapy (ES) is known to be effective in the treatment of bleeding esophageal varices, but the efficacy in the prophylaxis of first variceal bleeding has not been clear yet. The aim of this study was to investigate the frequency of first variceal bleeding, eradication and recurrence of varices, and survival after treatment with ES compared to non-treated control group. A total of 104 patients with liver cirrhosis and advanced esophageal varices with no previous history of upper gastrointestinal bleeding were randomly assigned to either endoscopic sclerotherapy group--SKL n = 56, or non-treated control group--KON n = 48.