Intracranial ricocheted-bullet injuries: An overview and illustrative case

The impact of a bullet by firearm is a mortal entity that in recent years has been on the rise due to the increase in crime, confrontations, among other acts of violence. Brain injuries by firearm account for 33.3% of all fatal injuries from this type of weapon. This resulted in a significant number of disabilities with its burden cost at a global level. The types of bullet injuries to the head include: penetrating (inlet without outlet), perforating (through and through), tangential (not enter the skull, causing coupe injury), ricochet (intracranial bouncing of bullet) and careening (rare, enter skull but not brain, runs in the subdural space). There are several situations that can occur once the bullet enters the body or into the intracranial cavity. Unmatched association of the bullet trajectory with the final position of the bullet within the body raise the suspicion for additional phenomena involvement, this can be explained by either internal bullet ricochet or internal bullet migration. The former usually represents an active movement and the latter is a passive movement. Intracranial ricocheting of bullets forms up to 25% of all penetrating bullet injuries to the skull. Such bullets types are commonly tumbling and have an unpredictable trajectory. The surgical management for intracranial bullet injury developed over decades from the time of Harvey Cushing and the World War I till the present. Now, the accepted intervention ranges from simple wound care to a proper surgery that includes hematoma evacuation, removal of only accessible bone fragments and foreign bodies, dural repair and wound debridement with or without decompressive craniectomy. Also, intracranial pressure monitoring is generally indicated. We reported a thirty-three years old male, victim of homicidal bullet injury to the head, presented with Glasgow Coma Scale score of 8 (best eye response: 2, best motor response: 4, best verbal response: 2), upon examination a right parietal (near vertex) inlet without outlet was found. The poor prognostic factors in this patient included bi-hemispheric involvement, associated acute subdural hematoma with interhemispheric extension, ricochet type of injury and effacement of sulci. Intracranial ricocheted-bullet injury is a special entity of bullet injury to the head with its particular ballistics and management that deserve highlighting by the trauma team to gain fluent treatment and better outcome

International Nosocomial Infection Control Consortium report, data summary of 50 countries for 2010-2015: Device-associated module

•We report INICC device-associated module data of 50 countries from 2010-2015.•We collected prospective data from 861,284 patients in 703 ICUs for 3,506,562 days.•DA-HAI rates and bacterial resistance were higher in the INICC ICUs than in CDC-NHSN's.•Device utilization ratio in the INICC ICUs was similar to CDC-NHSN's. Background: We report the results of International Nosocomial Infection Control Consortium (INICC) surveillance study from January 2010-December 2015 in 703 intensive care units (ICUs) in Latin America, Europe, Eastern Mediterranean, Southeast Asia, and Western Pacific. Methods: During the 6-year study period, using Centers for Disease Control and Prevention National Healthcare Safety Network (CDC-NHSN) definitions for device-associated health care-associated infection (DA-HAI), we collected prospective data from 861,284 patients hospitalized in INICC hospital ICUs for an aggregate of 3,506,562 days. Results: Although device use in INICC ICUs was similar to that reported from CDC-NHSN ICUs, DA-HAI rates were higher in the INICC ICUs: in the INICC medical-surgical ICUs, the pooled rate of central line-associated bloodstream infection, 4.1 per 1,000 central line-days, was nearly 5-fold higher than the 0.8 per 1,000 central line-days reported from comparable US ICUs, the overall rate of ventilator-associated pneumonia was also higher, 13.1 versus 0.9 per 1,000 ventilator-days, as was the rate of catheter-associated urinary tract infection, 5.07 versus 1.7 per 1,000 catheter-days. From blood cultures samples, frequencies of resistance of Pseudomonas isolates to amikacin (29.87% vs 10%) and to imipenem (44.3% vs 26.1%), and of Klebsiella pneumoniae isolates to ceftazidime (73.2% vs 28.8%) and to imipenem (43.27% vs 12.8%) were also higher in the INICC ICUs compared with CDC-NHSN ICUs. Conclusions: Although DA-HAIs in INICC ICU patients continue to be higher than the rates reported in CDC-NSHN ICUs representing the developed world, we have observed a significant trend toward the reduction of DA-HAI rates in INICC ICUs as shown in each international report. It is INICC's main goal to continue facilitating education, training, and basic and cost-effective tools and resources, such as standardized forms and an online platform, to tackle this problem effectively and systematically