The Nurse-Police Assistance Crisis Team (N-PACT): A new role for nursing.

AIM: This study aimed to gain insights into forensic nurses' perspectives and approaches to behavioural crisis situations, comparing them to disciplines traditionally involved in first-line behavioural crisis response. DESIGN: This study used a descriptive, qualitative exploratory design and was informed by Systems Theory. METHODS: The study was carried in the United States, between 2022 and 2023. Data were gathered through four focus groups: police officers (n = 12), co-response (mental health) clinicians (n = 13), sexual assault nurse examiners (n = 6) and correctional nurses (n = 4). Thematic analysis was performed. REPORTING METHOD: The Standards for Reporting Qualitative Research (SRQR) guidelines were used. RESULTS: Findings revealed temporal themes in crisis response: (1) Searching for Historical Information; (2) Safety and Acting at the Present Scene; and (3) Future Strategies and Interventions. Common priorities (e.g. safety and de-escalation) were identified across groups. Notably, nurses demonstrated a comprehensive approach, addressing physical and mental health assessments, substance involvement, and physical injury evaluation. CONCLUSION: This study proposes the creation of a novel nursing role within first-line multidisciplinary teams (MDTs) for crisis response-the Nurse-Police Assistance Crisis Team (N-PACT). Nurses bring expertise and comprehensive assessment skills to enhance crisis responses, particularly in cases involving mental health emergencies, medical crises, and drug-related incidents. IMPLICATIONS: Forensic nurses, with their diverse competencies and comprehensive training, are highly valuable assets within MDTs. Their expertise extends to proficiently conducting mental and physical assessments, ensuring safety and adeptly navigating situations that intersect with the legal system. IMPACT: The N-PACT concept can improve outcomes and streamline the allocation of resources, particularly considering the number of police calls involving behavioural crises. PATIENT OR PUBLIC CONTRIBUTION: No patient or public contribution.

The Evidence for Selective Loss of Otolithic Function.

Recent advances in vestibular testing now permit functional testing of all peripheral vestibular sense organs (all three semicircular canals, utricle, and saccule). This makes it possible to identify patients with isolated dysfunction of the utricle or saccule, even though parallel pathways for vestibular information are ultimately integrated centrally. Selective, isolated unilateral loss of utricular function as measured by ocular vestibular-evoked myogenic potentials (VEMPs) has been observed in patients with normal semicircular canal function as measured by the video head impulse test of all six semicircular canals, and normal bilateral saccular function as determined by symmetrical cervical VEMPs. How these patients present clinically and how they recover is discussed and contrasted with acute vestibular neuritis. In some patients, the unilateral loss of otolith organ (utricle or saccule) function persists and yet the patient recovers functionally to their usual lifestyle. Until the testing of all peripheral vestibular sense organs is routine, the frequency of isolated loss of otolith function cannot be gauged.

A review of mechanical and synaptic processes in otolith transduction of sound and vibration for clinical VEMP testing.

Older studies of mammalian otolith physiology have focused mainly on sustained responses to low-frequency (<50 Hz) or maintained linear acceleration. So the otoliths have been regarded as accelerometers. Thus evidence of otolithic activation and high-precision phase locking to high-frequency sound and vibration appears to be very unusual. However, those results are exactly in accord with a substantial body of knowledge of otolith function in fish and frogs. It is likely that phase locking of otolith afferents to vibration is a general property of all vertebrates. This review examines the literature about the activation and phase locking of single otolithic neurons to air-conducted sound and bone-conducted vibration, in particular the high precision of phase locking shown by mammalian irregular afferents that synapse on striolar type I hair cells by calyx endings. Potassium in the synaptic cleft between the type I hair cell receptor and the calyx afferent ending may be responsible for the tight phase locking of these afferents even at very high discharge rates. Since frogs and fish do not possess full calyx endings, it is unlikely that they show phase locking with such high precision and to such high frequencies as has been found in mammals. The high-frequency responses have been modeled as the otoliths operating in a seismometer mode rather than an accelerometer mode. These high-frequency otolithic responses constitute the neural basis for clinical vestibular-evoked myogenic potential tests of otolith function.

Fetal Abduction: Comparison of Two Cases.

The current article compares two cases involving the murders of two pregnant mothers for the kidnapping of their fetuses. The structure of the crimes includes seven steps. Both mothers were befriended by their killers (one before and one on the day of the murder and abduction), rendered unconscious by blunt force trauma, and then killed (one by strangulation and one by gunshot). Both bodies were moved after the murders and hidden, and later discovered by the circumstances of the babies' births: crude cesarean section operations. One killer, Winifred Ransom, was diagnosed in 1975 with schizophrenia, acquitted as insane, sentenced to Byberry State Hospital and, on appeal, was released as "cured" 20 months later. The other killer, Julie Corey, was found guilty in 2014 and sentenced to life in prison. The cases illustrate two different eras in psychiatric nursing. [Journal of Psychosocial Nursing and Mental Health Services, 54(11), 37-43.].

Gaps in Crisis Mental Health: Suicide and Homicide-Suicide.

Gaps in crises of mental health emerge from poor distinction between the qualities of people who suicide and those who murder and then kill themselves. The role, if any, that substance use has in such lethal violence is an example of such a lack of distinction. In this study, a sample of medical examiner investigative and toxicology reports from Los Angeles and Orange counties in California were available for analysis for 432 suicide cases and 193 homicide-suicide cases. This informed clearer toxicological and pharmacological distinction of suicide from homicide-suicide. Blood alcohol levels were higher in persons committing suicide than in homicide-suicide perpetrators (p=.004). Homicide-suicide perpetrators had almost twice the level of stimulants in their system than people who suicide (p=.022) but did not have comparatively elevated levels of drugs or alcohol. Predictors of suicide included the following: substance abuse history, high number of drugs in system, death inside a house, and legal impairment by alcohol. Predictors of homicide-suicide included gunshot as the cause of death, female gender, domestic conflict, children living in the home, and prior arrest for substance abuse.

Neural basis of new clinical vestibular tests: otolithic neural responses to sound and vibration.

Extracellular single neuron recording and labelling studies of primary vestibular afferents in Scarpa's ganglion have shown that guinea-pig otolithic afferents with irregular resting discharge are preferentially activated by 500 Hz bone-conducted vibration (BCV) and many also by 500 Hz air-conducted sound (ACS) at low threshold and high sensitivity. Very few afferent neurons from any semicircular canal are activated by these stimuli and then only at high intensity. Tracing the origin of the activated neurons shows that these sensitive otolithic afferents originate mainly from a specialized region, the striola, of both the utricular and saccular maculae. This same 500 Hz BCV elicits vestibular-dependent eye movements in alert guinea-pigs and in healthy humans. These stimuli evoke myogenic potentials, vestibular-evoked myogenic potentials (VEMPs), which are used to test the function of the utricular and saccular maculae in human patients. Although utricular and saccular afferents can both be activated by BCV and ACS, the differential projection of utricular and saccular afferents to different muscle groups allows for differentiation of the function of these two sensory regions. The basic neural data support the conclusion that in human patients in response to brief 500 Hz BCV delivered to Fz (the midline of the forehead at the hairline), the cervical VEMP indicates predominantly saccular function and the ocular VEMP indicates predominantly utricular function. The neural, anatomical and behavioural evidence underpins clinical tests of otolith function in humans using sound and vibration.

Long-Term Psychological and Physiological Effects of Male Sexual Trauma.

Male sexual trauma presents multiple clinical challenges. Although the topic has received increased attention in the last couple decades, male sexual trauma continues to be underreported and underrecognized. This study aimed to investigate the long-term effects of sexual trauma for men who were victimized within an institutional environment by a person in a position of power. This study included data from 47 adult men who were victims of sexual abuse or misconduct by an assigned physician at a higher education academic institution between 1966 and 2003. A primary finding was elevated rates of intimacy and sexual problems and erectile dysfunction, which started shortly after the abuse and persisted over time. We found that there was an association between intimacy and sexual problems and difficulty maintaining employment, drug addiction, erectile dysfunction, and loss of meaningful and romantic relationships. Levels of potential psychopathology were prominently linked to loss of sexual interest or pleasure, intimacy concerns, and loss of intimate and other personal relationships. Men who experienced sexual abuse as adults within an institutional environment developed long-standing patterns of interpersonal and professional problems. This study emphasizes the need for nuanced screening, evaluation, and treatment for male sexual trauma.

Murdered Native and Indigenous Women: A Comparison Study of Victim and Perpetrator Patterns and Characteristics.

INTRODUCTION: The rate of violent crimes against Indigenous people, including murder and rape, is significantly higher than national averages. Even more concerning, Indigenous women and girls represent a large proportion of murdered and missing individuals in the United States. In addition to the murder rate of Indigenous women being higher than the national average, they are significantly more likely to experience rape or other types of sexual violence. The main goal of this study was to gain a better understanding of cases involving the homicide of Indigenous women and identify patterns associated with the violence committed against them. METHODS: Cases of Indigenous women between the ages of 18 and 55 years were pulled from the database. Cases were coded and analyzed for information pertaining to victim, perpetrator, and crime characteristics. Descriptive analysis and test of association were performed. RESULTS/FINDINGS: There was a statistical association between the nature of the relationship between perpetrators and victims and whether the crime occurred on a reservation, the race/ethnicity of the perpetrator, a victim's history of domestic violence, and the method and motive of murder. DISCUSSION/CONCLUSION: Indigenous women are at an increased risk of victimization, including intimate partner violence and homicide. They also represent a group that has been marginalized, receiving little attention from the media, clinicians, researchers, and policy makers. The findings in this study highlight specific factors that may help to mitigate risk factors and/or enhance culturally competent clinical and forensic nursing practice.

Effect of stimulus rise-time on the ocular vestibular-evoked myogenic potential to bone-conducted vibration.

OBJECTIVES: The negative potential at 10 msec (called n10) of the ocular vestibular-evoked myogenic potential (oVEMP) recorded beneath the eyes in response to bone-conducted vibration (BCV) delivered to the skull at the midline in the hairline (Fz) is a new indicator of otolithic, and in particular utricular, function. Our aim is to find the optimum combination of frequency and rise-time for BCV stimulation, to improve the sensitivity of oVEMP testing in the clinic. DESIGN: We tested 10 healthy subjects with 6 msec tone bursts of BCV at three stimulus frequencies, 250, 500, and 750 Hz, at rise-times ranging between 0 and 2 msec. The BCV was delivered at Fz. RESULTS: The n10 response was significantly larger at the shorter rise-times, being largest at zero rise-time. In addition, we examined the effect of stimulus frequency in these same subjects by delivering 6 msec tone bursts at zero rise-time at a range of frequencies from 50 to 1200 Hz. The main effect of rise-time was significant with shorter rise-times leading to larger n10 responses and the Rise-Time × Frequency interaction was significant so that at low frequencies (100 Hz) shorter rise-times had a modest effect on n10 whereas at high frequencies (750 Hz) shorter rise-times increased n10 amplitude substantially. The main effect of frequency was also significant: The n10 response tended to be larger at lower frequency, being largest between 250 and 500 Hz. CONCLUSIONS: In summary, in this sample of healthy subjects, the most effective stimulus for eliciting oVEMP n10 to BCV at Fz was found to be a tone burst with a rise-time of 0 msec at low stimulus frequency (250 or 500 Hz).

Symptom responses to a continuum of sexual trauma.

This study reports the findings of an anonymous web-based survey to test differences in symptom presentation (depression, anxiety, posttraumatic stress disorder [PTSD]) among women who experienced different types of sexual trauma (forcible, pressured, sex stress). The study used a descriptive cross-sectional design with an online convenience sample of 243 adult females living primarily in the United States. The findings revealed that there was a statistically significant difference among type of sexual trauma groups for depression (p = .013) and PTSD (p = .044) but not for anxiety (p = .183). Post hoc analysis of the overall difference in depression revealed that the multiple rape type group (p = .010) and the forcible sex group (p = .016) had higher levels of depression.

Military sexual trauma: a silent syndrome.

This article examines an age-old problem-sexual assault-through the lens of its occurrence within the military culture. Specific cases as well as U.S. Department of Defense responses to better handle these issues are offered to educate psychiatric-mental health nurses of the potential differences in symptomatology and presentation of military sexual trauma (MST). This appears to be an increasing problem with the predicted cohort of returning veterans appearing both in the U.S. Department of Veterans Affairs system as well as in civilian locations, hospitals, community centers, and especially the workplace. It will be critical to develop training materials and pursue further research to identify this silent syndrome of MST to better meet the needs of our returning veterans.

Manual and instrument asphyxiation/strangulation: Examining perpetrator and victim characteristics.

Asphyxiation and strangulation are predominant murder methods, with ligature and hands being common weapons in such attacks. This study examines a broad sample with the goal of establishing statistical significance between manual and instrument asphyxiation/strangulation and both victim and offender characteristics. Two hundred cases of perpetrators who strangled or asphyxiated at least one victim on or after 1970 were randomly selected from the Radford-FGCU Serial Killer Database. Descriptive analysis and association tests were performed for characteristics of the perpetrators, victims and crimes. In 68% of the cases, perpetrators only targeted women. The primary murder motives were sadism (36%) and intense emotions (22%), which were statistically associated with the perpetrators' relationship with their victims, serial killing and motive of asphyxiation. There was a relationship between the perpetrators' favoring the use of manual or ligature strangulation/asphyxiation and their ethnicity, prior history of abuse and the victims' racial/ethnic group. Findings highlight the variety of contexts in which strangulation takes place, ranging from sexually or sadism motivated homicide and intimate partner violence. Moreover, the predominance of manual or ligature asphyxiation/strangulation among different racial/ethnic groups may have implications in legal processes, as well as in risk and threat assessments.

A Review of Neural Data and Modelling to Explain How a Semicircular Canal Dehiscence (SCD) Causes Enhanced VEMPs, Skull Vibration Induced Nystagmus (SVIN), and the Tullio Phenomenon.

Angular acceleration stimulation of a semicircular canal causes an increased firing rate in primary canal afferent neurons that result in nystagmus in healthy adult animals. However, increased firing rate in canal afferent neurons can also be caused by sound or vibration in patients after a semicircular canal dehiscence, and so these unusual stimuli will also cause nystagmus. The recent data and model by Iversen and Rabbitt show that sound or vibration may increase firing rate either by neural activation locked to the individual cycles of the stimulus or by slow changes in firing rate due to fluid pumping ("acoustic streaming"), which causes cupula deflection. Both mechanisms will act to increase the primary afferent firing rate and so trigger nystagmus. The primary afferent data in guinea pigs indicate that in some situations, these two mechanisms may oppose each other. This review has shown how these three clinical phenomena-skull vibration-induced nystagmus, enhanced vestibular evoked myogenic potentials, and the Tullio phenomenon-have a common tie: they are caused by the new response of semicircular canal afferent neurons to sound and vibration after a semicircular canal dehiscence.

Ramifications of the COVID-19 Pandemic on Nursing Students' Transition to Practice.

As the COVID-19 pandemic altered the course of nursing education worldwide, it disrupted efforts to transition nursing students to professional practice. The investigators examined clinical nursing faculty members' assessment of senior students' practice strengths and challenges compared to graduates of prior years. Findings demonstrated COVID-19's wide-ranging impacts on nursing students' transition to practice and offered suggestions about the implications for nursing professional development practitioners.

A review of the geometrical basis and the principles underlying the use and interpretation of the video head impulse test (vHIT) in clinical vestibular testing.

This paper is concerned mainly with the assumptions underpinning the actual testing procedure, measurement, and interpretation of the video head impulse test-vHIT. Other papers have reported in detail the artifacts which can interfere with obtaining accurate eye movement results, but here we focus not on artifacts, but on the basic questions about the assumptions and geometrical considerations by which vHIT works. These matters are crucial in understanding and appropriately interpreting the results obtained, especially as vHIT is now being applied to central disorders. The interpretation of the eye velocity responses relies on thorough knowledge of the factors which can affect the response-for example the orientation of the goggles on the head, the head pitch, and the contribution of vertical canals to the horizontal canal response. We highlight some of these issues and point to future developments and improvements. The paper assumes knowledge of how vHIT testing is conducted.

Ocular and cervical vestibular evoked myogenic potentials to 500 Hz fz bone-conducted vibration in superior semicircular canal dehiscence.

OBJECTIVE: The aim of this study was to investigate the effect of superior semicircular canal dehiscence (SSCD) on the n10 component of the ocular vestibular evoked myogenic potential (oVEMP n10) and the p13-n23 component of the cervical vestibular evoked myogenic potential (cVEMP p13-n23) evoked by 500 Hz bone-conducted vibration (BCV) at the midline forehead at the hairline (Fz) in 26 patients with computed tomography-verified SSCD. Previous evidence has led to the proposal that the oVEMP n10 is of utricular origin whereas the cVEMP p13-n23 is of saccular origin. The question is can the oVEMP n10 to 500 Hz BCV indicate SSCD? DESIGN: A hand-held Bruel & Kjaer 4810 Minishaker was used to provide BCV stimulation using surface electromyography electrodes to record oVEMP n10 and cVEMP p13-n23. The stimulus was 7 msec bursts of 500 Hz BCV at either Fz or at the vertex of the skull (Cz). Twenty-seven healthy subjects were tested in the same paradigm. RESULTS: In response to 500 Hz Fz BCV in SSCD patients the oVEMP n10 amplitude beneath the contraSSCD eye was substantially and significantly larger than the oVEMP n10 beneath the ipsiSSCD eye, whereas in these same patients the cVEMP p13-n23 amplitude over the ipsiSSCD sternocleidomastoid muscle to Fz BCV was slightly but significantly larger than the cVEMP p13-n23 amplitude over the contraSSCD sternocleidomastoid muscle. In SSCD patients there was a significant relationship between the size of the dehiscence and the amplitude of the contralateral oVEMP n10 potential. The oVEMP n10 to Cz stimulation was still present in SSCD patients, but small or absent in healthy subjects. CONCLUSIONS: In response to 500 Hz Fz BCV an asymmetrical oVEMP n10 with a significantly increased amplitude of contralesional oVEMP n10 (compared with population values of healthy subjects) is a simple useful indicator of SSCD, confirmed by the Cz response. oVEMP testing with 500 Hz Fz BCV allows very simple, very fast identification of a probable unilateral SSCD.

Vestibular function in Lermoyez syndrome at attack.

Lermoyez syndrome (LS) has been regarded as a variant of Ménière's disease (MD), but so far there have been very few cases of LS reported in the literature, so such a conclusion is debatable. Specifying the pattern of auditory and vestibular changes at attack using objective quantitative measures is important for understanding the mechanism responsible for MD and LS. Here we report the first objective measures of dynamic otolith function and dynamic semicircular canal function in an LS patient at the time of the attack as well as at quiescence, documenting the fluctuation in otolith and semicircular canal function in the patient. The very rapid changes in dynamic vestibular function at the time of the LS attack appear to complement some of the rapid changes in auditory and vestibular function at the attack in Ménière's disease, supporting the contention that LS is a variant of MD.

Distinguishing everyday evil: Towards a clinical inventory of extreme and outrageous behaviors, actions and attitudes.

Everyday evil is seen in a broad range of scenarios of intended behaviors that are often not violations of criminal law, but nevertheless cause significant and enduring personal and emotional harm. For this reason, the manifestations of everyday evil have pressing psychiatric import. Here, we propose the Welner Inventory of Everyday Extreme and Outrageous (WIEEO) for use as a screening inventory in clinical settings. The WIEEO contains 14 items within four categories: Physical and Emotional Damage, Exploitation, Extending Damage, and Extinguishing Goodness. Five items of "Physical and Emotional Damage" account for enduring life impact from said damage, and material effects that amplify emotional impact as well. Three items of "Exploitation" highlight the significance of not merely the actor's exploitation itself, but also the defenseless vulnerability of the victim. Four items that comprise the "Extending Suffering" category lengthen the impact, involve unusual dimensions, reflect creative social deviance in intent, or extend to additional parties. The two items of "Extinguishing Goodness" focus on the impact of decaying the otherwise prosocial or benevolent character of another and spawning everyday outrageousness in someone who would not have otherwise acted as such. These items have assumed relevance to the WIEEO through research and clinical settings that reveal their significant impact and psychological morbidity. The WIEEO serves as a marker for behaviors that warrant closer clinical attention to intervene, treat and detoxify such situations and the motivations of such malignant behavior before it further traumatizes or damages others.

A Single Fast Test for Semicircular Canal Dehiscence-oVEMP n10 to 4000 Hz-Depends on Stimulus Rise Time.

As previously reported, a single test measuring oVEMP n10 to 4000 Hz stimuli (bone-conducted vibration (BCV) or air-conducted sound (ACS)) provides a definitive diagnosis of semicircular canal dehiscence (SCD) in 22 CT-verified patients, with a sensitivity of 1.0 and specificity of 1.0. This single short screening test has great advantages of speed, minimizing testing time, and the exposure of patients to stimulation. However, a few studies of the 4000 Hz test for SCD have reported sensitivity and specificity values which are slightly less than reported previously. We hypothesized that the rise time of the stimulus is important for detecting the oVEMP n10 to 4000 Hz, similarly to what we had shown for 500 and 750 Hz BCV. We measured oVEMP n10 in 15 patients with CT-verified SCD in response to 4000 Hz ACS or BCV stimuli with rise times of 0, 1, and 2 ms. As a result, increasing the rise time of the stimulus reduced the oVEMP n10 amplitude. This outcome is expected from the physiological evidence of guinea pig primary vestibular afferents, which are activated by sound or vibration. Therefore, for clinical VEMP testing, short rise times are optimal (preferably 0 ms).

Female murderers who mutilate or dismember their victims: An exploration of patterns and sex differences.

Attributes and behavioral patterns of female homicide offenders have been less explored than those of males, particularly in crimes that involve aggravating factors such as dismemberment and mutilation. This study explored the patterns of female murderers who engage in postmortem dismemberment and/or mutilation of victims, contrasting these with the patterns of males who display these same behaviors. Cases were obtained from Radford-Florida Gulf Coast University Database and public sources, and then analyzed for specific characteristics of the crimes. An informational form was used to derive quantitative parameters. Statistical significance between sex and variables such as motive, dismemberment/mutilation style, and level of organization during the crime were examined. The majority of the cases were consistent with a defensive style. However, 23% of the cases involving females followed an offensive style compared to 33% among males. The nature of prior relationships between offenders and their victims was noteworthy, with the victims of males being largely strangers and the victims of females being primarily known to them. In comparison to males, females were markedly organized. These differences may emphasize aspects of psychological drives and pleasure-seeking that was more commonly seen among men, who often targeted strangers and were motivated by sadism in 25% of the cases. Dismemberment perpetrated by women primarily followed a defensive style that aimed to dispose of evidence, which would be congruent with the assumption that the murder occurred within a prior background of interpersonal partner violence toward the female perpetrator or other family members.