Four Hours and a Silent Emergency - Hematology clinical simulation case. A 16-year-old male with known sickle cell disease (HbSS) presents to the...
Age: 16 • Gender: Male • Setting: Emergency Triage
Clinical Presentation & History
A 16-year-old male with known sickle cell disease (HbSS) presents to the Emergency Department accompanied by his mother, reporting a sustained, painful penile erection that began approximately four hours ago. He is visibly embarrassed, diaphoretic, and in significant distress.
Acute Resuscitation Milestones & Priorities
Clinical phases and key interventions encountered in this emergency module:
Ischemic priapism in sickle cell disease is a vaso-occlusive emergency of the corpora cavernosa; the four-hour threshold determines cavernosal fibrosis risk and long-term erectile function.
Adolescent males almost always underreport genitourinary symptoms; establishing privacy and confidentiality is essential before history-taking and exam.
First-line management is simultaneous: IV hydration, oxygen, opioid analgesia, warm compresses, and corporal aspiration with intracavernosal phenylephrine.
Epinephrine-containing local anesthetics are contraindicated in penile nerve blocks due to alpha-mediated vasoconstriction and ischemic risk.
Automated red cell exchange to HbS <30% is indicated when aspiration and intracavernosal therapy fail; simple transfusion increases viscosity and may worsen crisis.
Surgical shunts (Winter, El-Ghorab) are last-line options reserved for refractory cases due to risk of erectile dysfunction.
Discharge planning must include urology follow-up, hematology referral for hydroxyurea initiation, and clear education that any future erection lasting more than one hour warrants immediate return to the ED.
Test Your Clinical Reasoning in Real Time
Step into the active clinician role for this case. Order diagnostic tests, analyze live laboratory panels, and navigate branching clinical decisions with real-time feedback.