Genital Injury and Human Sexual Response
Transcript of Genital Injury and Human Sexual Response
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Genital Injury and HumanSexual Response in Sexual
Assault
Cheryl Graf, ARNP, MSN
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Reasons to Identify Injury
To recognize the need for treatmentRefer for further evaluation /treatmentIdentify a pattern of injuryRecognize a “patterned injury”Appropriate evidence collection
BruisesBite marksSite of injury
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Medical Conclusions
Mechanisms of injuryResearch Incidence of injury and identificationClinical experiencePeer reviewMedical/Legal conclusions
Scope of RN practiceCurrent literatureConclusion of non-consensual sexLack of experienceWorking in isolationExpert or fact witness
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Injury Types
TTear and Tenderness
EEcchymosis
AAbrasions
RRedness
SSwelling
Blunt force Laceration or contusion
Burns
Bite injury
Patterned injury
Sharp force Cut or incision
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Nonspecific/Subjective Injury
Erythemaredness of the skin or mucous membranes produced by increased blood flow to the capillaries.
Note: there are causes other than trauma
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Nonspecific/ Subjective Injury
Tenderness - painfulness to pressure of contact
Cannot be documented by photography, but only by examiner observation and victim statementVictims have different tolerance for pain or touch as elicited by exam.
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Non-genital Injury
HeadFaceNeckThighs
LegsArmsBack Abdomen
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Objective Genital injury
Laceration –splitting of skinContusion
Extravasation of blood outside vessels
PetechiaePinpoint contusions – pressure, blunt force
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Genital Injury: Specific Location
Posterior fourchette is the most common site of injury
Labia majora and minora is the second most common genital injury
Adams 1996, Biggs 1998
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Toulidine Blue Dye Enhances Injury Detection
Vital stain, so will not stain keratinized epitheliumWill stain underlying tissue, and so delineate abrasions and lacerationsUse of toulidine blue dye in examining female sexual assault victims raised the genital injury detection rate to…
45-56% in adult victims28% in adolescent victims
Lauber & Soma 1982, McCauley 1986, 1987
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The presence of findings
Does not in itself prove lack of consentConsensual sex can result in injuryCan corroborate victim’s report
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The absence of findings
Does not mean that a sexual assault did not occur or is unfounded
Cases can also be corroborated by lab work, confession, witnesses
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Injury to the Hymen
The hymen is more likely to be injured in female sexual assault victims who have not had prior sexual experience.
Adolescents: 8% transection, 10% bruiseNo prior sexual experience: transection 9%
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The hymen is not always injured in first sexual intercourse, consenting or non-consenting.
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Injury to the Cervix
Injuries to the cervix are uncommon following sexual assault but may occur under certain circumstancesForceful digital penetrationPenetration with a foreign object
Penile penetration is not likely to cause cervical injury
Slaughter 1991
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Potential Genital Injury
Factors related to the following:
VictimPerpetratorCircumstances
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Factors Related to the Victim
Previous child bearingLubrication
Natural or artificialTissue fragility
Hormone deficiencyInflammation
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Factors Related to the Victim
Anatomy and physiology of reproductive structuresPositioningParticipationRelaxationCognitions and learned behaviors
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Factors Related to the Victim
Traumatic Stress ResponseThreat of death or serious injuryIntense fear or terrorHelplessnessFreezing, fight or flight activation
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Factors Related to the Victim
Traumatic Stress initiates the activity of the sympathetic nervous system (SNS)Resulting in:
Intensification of genital (physiological) responseIncreased heart rate, respirations
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Human Sexual Response
Masters and Johnson is NOLONGER an appropriate model:
A heterosexual-phallocentric modelDoes not include the subjective experience of desireDoes not accurately reflect arousal in both men and womenStages are linear and prescriptiveOveremphasis on physiology
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Human Sexual Response
What is known about HSR:Physical arousal is not always accompanied by subjective desireGenital stimulation can be touch, pressure or rubbingGenital Response is physiological
Erection in men, vasocongestion in womenReflexive and involuntary
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Factors Related to the Perpetrator
Use/lack of forcePhysical force results in injury
Male sexual dysfunctionIncreased duration of tissue friction
Nature of penetrating objectInanimate object will result in more injury and pain
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Factors related to the Circumstances
Genital size congruence ???
Multiple events or assailants
Relationship of victim to assailant