[Non-ischemic priapism (post-traumatic arteriovenous fistula of the right cavernous body) in the background of Landusy-Dejerine myopathy].

Landouzy-Dejerine myopathy (Facial-shoulder-shoulder myodystrophy) is a disease which causes weakness of the muscles of the shoulder girdle, back and hip muscles, which predisposes patients to an increased risk of injury and disability. The article presents a clinical observation of non-ischemic priapism, which developed as a result of perineal trauma with the formation of a fistula of the right cavernous body in a patient against the background of facial shoulder-shoulder myodystrophy. Methods for the differential diagnosis of this condition are also discussed.

The Diagnosis and Management of Recurrent Ischemic Priapism, Priapism in Sickle Cell Patients, and Non-Ischemic Priapism: An AUA/SMSNA Guideline.

PURPOSE: Priapism is a persistent penile erection that continues hours beyond, or is unrelated to, sexual stimulation and results in a prolonged and uncontrolled erection. Given its time-dependent and progressive nature, priapism is a situation that both urologists and emergency medicine practitioners must be familiar with and comfortable managing. METHODOLOGY: A comprehensive search of the literature on acute ischemic priapism and non-ischemic priapism (NIP) was performed by Emergency Care Research Institute for articles published between January 1, 1960 and May 1, 2020. A search of the literature on NIP, recurrent priapism, prolonged erection following intracavernosal vasoactive medication, and priapism in patients with sickle cell disease was conducted by Pacific Northwest Evidence-based Practice Center for articles published between 1946 and February 19, 2021. Searches identified 4117 potentially relevant articles, and 3437 of these were excluded at the title or abstract level for not meeting inclusion criteria. Full texts for the remaining 680 articles were ordered, and ultimately 203 unique articles were included in the report. RESULTS: This Guideline provides a clinical framework for the treatment (non-surgical and surgical) of NIP, recurrent ischemic priapism, and priapism in patients with sickle cell disease. The treatment of patients with a prolonged erection following intracavernosal vasoactive medication is also included. The AUA guideline on the diagnosis of priapism and the treatment of acute ischemic priapism was published in 2021. CONCLUSIONS: All patients with priapism should be evaluated emergently to identify the sub-type of priapism (acute ischemic versus non-ischemic) and those with an acute ischemic event should be provided early intervention when indicated. NIP is not an emergency and treatment must be based on patient objectives, available resources, and clinician experience. Management of recurrent ischemic priapism requires treatment of acute episodes and a focus on future prevention of an acute ischemic event. Sickle cell disease patients presenting with an acute ischemic priapism event should initially be managed with a focus on urologic relief of the erection; standard sickle cell assessment and interventions should be considered concurrent with urologic intervention. Treatment protocols for a prolonged, iatrogenic erection must be differentiated from protocols for true priapism.

[Conservative management of traumatic priapism in paediatric patients]. / Manejo conservador del priapismo traumático en la edad pediátrica.

INTRODUCTION: High-flow priapism is infrequent in pediatric patients. It is mostly secondary to perineal trauma resulting in laceration of a penile artery and the formation of an arterio-cavernous fistula. It does not constitute a medical emergency in itself, and allows conservative management awaiting spontaneous resolution. CLINICAL CASE: A six-year-old boy with painless persistent erection preceded by perineal trauma. Ultrasound imaging confirmed the clinical suspicion of high flow priapism secondary to arterio-cavernous fistula. After adopting a conservative approach, the patient presented progressive detumescence, as well as ultrasound resolution one month after the episode. COMMENTS: In high-flow priapism, venous drainage of the penis is preserved. The classical approach in adults is based on therapeutic angiography, which presents greater technical complexity and the risk of iatrogenic hypoxia in pediatric patients.

INTRODUCCION: El priapismo de alto flujo es una entidad infrecuente en la edad pediátrica. Es, en su mayoría, secundario a traumatismo perineal que provoca la laceración de una arteria peneana y formación de una fístula arterio-cavernosa. No constituye una emergencia médica, permitiendo un manejo conservador a la espera de su resolución espontánea. CASO CLINICO: Niño de seis años con erección persistente e indolora tras traumatismo perineal. El diagnóstico ecográfico confirma la sospecha de priapismo de alto flujo secundario a fístula arteria-cavernosa. Tras manejo conservador, presenta detumescencia progresiva y resolución ecográfica al mes del episodio. COMENTARIOS: En el priapismo de alto flujo el drenaje venoso del pene se encuentra conservado. El manejo clásico en adultos se fundamenta en la angiografía terapéutica, de mayor complejidad técnica y riesgo de hipoxia iatrogénica en el paciente pediátrico.

Interventional radiology: Diagnosis and treatment of post-traumatic nonischemic priapism: A case report.

Priapism is defined as a form of erectile dysfunction characterized by a prolonged and involuntary penile erection, either partial or complete, occurring without sexual stimulation and lasting for more than 4 hours. Its incidence is estimated to be 0.5-0.9 cases per 100,000 people per year. The most frequent form is ischemic priapism, results from paralysis of the cavernous smooth muscles, which are unable to contract, leading to the stagnation of hypoxic blood within the sinusoidal spaces. Characterized by a painful rigid and sustainable erection. Non-ischemic priapism constitutes a rare entity, unlike the former, this type is typically painless. It is caused by an excessive influx of blood into the penis without a concomitant increase in outgoing blood flow. Blunt trauma is the most commonly reported etiology. And finally, recurrent priapism is characterized by recurrent episodes of prolonged erection and can be challenging to treat, often requiring long-term management to prevent recurrences. We report a case of high-flow priapism in a 10-year old child, secondary to a cavernous arterial fistula following a straddle injury during sports activity. It was suspected clinically and confirmed by ultrasound-Doppler, then successfully treated radiologically with highly selective embolization, with very satisfactory postoperative outcomes.

Presumptive Non-Ischemic Priapism in a Cat.

A 14-year-old neutered male British shorthair cat presented with a 21-day history of persistent erection and dysuria, along with overgrooming of the perineal region. Mild palpation induced pain and rigid corpora cavernosa with flaccid glans were observed during physical examination. Ultrasonography of the penis did not detect significant blood flow in the penile cavernosal artery. The drawing of aspirate blood from cavernosal bodies for gas analysis was impossible because of the anatomically small penis size of cats. Conservative management, including topical steroid ointment, lidocaine gel, gabapentin, and diazepam, was prescribed for supportive management. The clinical signs resolved, and ultrasonographic examination of the penis revealed no abnormalities. The cat remains clinically well without recurrence during the 6 months after treatment. To our knowledge, this is the first report of non-ischemic priapism in a cat.

Gabapentin-Induced Priapism.

Priapism is defined as an erection that lasts longer than four hours, is unrelated to sexual interest or stimulation, and is unrelieved by orgasm. The ischemic subtype is a urologic emergency and is often caused by medication side effects, most notably selective serotonin reuptake inhibitors and trazodone. We present the case of ischemic priapism thought to be caused by the recent initiation of gabapentin.

The 10-year priapism experience: identifying clearer targets for intervention.

Background: There is a paucity of data on the clinical experience of priapism. Moreover, little work has explored differences in practice patterns between urologists and emergency medicine (EM) physicians. Our primary objective was to understand the priapism patient population and identify targets that may guide clinical translational efforts. Methods: A retrospective chart review was performed on two priapism datasets from June 2008-July 2018-one focused on patients managed by urology and another on patients managed exclusively by EM physicians. Primary areas of interest included the duration of priapism and acute interventions during the consultation. Time to presentation, prior interventions and evaluation was also documented. Results: Over the course of 10 years, there were 396 encounters for priapism in 95 unique patients. Urology was consulted 199 times in 83 unique patients and EM physicians managed 197 encounters in 15 unique patients. In the urology cohort, median duration of priapism was 6 hours, and 72% of patients required further intervention. For the EM cohort, median duration of priapism was 4 hours and 89% of patients required further intervention. Amongst all patients, nine patients presented 4 or more times for a total of 294 encounters. Conclusions: Urology and EM managed a similar number of encounters, but EM patients had a shorter duration of priapism. Understanding the role of the EM physician and the urologist can help tailor joint curriculum efforts for initial priapism management while focusing on more complex management for urology trainees. A small proportion of patients accounted for the majority of visits secondary to recurrent ischemic priapism indicating a need to target prevention of these episodes on an outpatient basis.

A case of non-ischemic priapism in a healthy 7-year-old boy.

Priapism is a urologic emergency more commonly encountered in the adult population. Causes include medication adverse effect, chronic disease, malignancy, dialysis, spinal cord lesions, trauma, infection/inflammation, neuropathy, and idiopathic. Evaluation and treatment focus on identifying and eliminating etiology along with supportive measures. If medical management is not effective, surgery is usually performed to preserve function.

Idiopathic non-ischemic priapism in an infant: A case report.

Priapism is a pathologic erection lasting >4 hours that is unrelated to or persists beyond sexual stimulation. Priapism is rare in children, and rarely reported in infants. Although a small number of cases have been reported in neonates, even fewer have been reported in infants outside of the neonatal period. Due to its rarity and poorly understood pathophysiology, the diagnosis and management of priapism in infants is challenging. We report a rare case of idiopathic non-ischemic priapism in a 9-month-old highlighting some of the challenges in diagnosis and management of priapism in this age group.

An Update on Non-Ischemic Priapism.

INTRODUCTION: Non-ischemic or high-flow priapism is derived from unregulated arterial inflow within the penis, which is significantly less common and, therefore, less well characterized than ischemic or low-flow priapism. AIM: We collected the most recent available data and summarized the findings. METHODS: All literature related to non-ischemic priapism from 2000-2018 from several databases was reviewed, and 105 articles, including any relevant referenced articles, were ultimately included. MAIN OUTCOME METHODS: We evaluated modality success rates, need for repeat procedures, and effects on erectile function. RESULTS: 237 cases of non-ischemic priapism were evaluated. Approximately 27% of patients underwent observation or medical management as the first treatment modality, whereas 73% underwent intervention without observation or medical management beforehand. Angiographic embolization with temporary agents was the most common intervention and generally resulted in both moderate resolution of non-ischemic priapism and moderate preservation of baseline erectile function. Patients who underwent embolization with permanent agents experienced higher rates of resolution, as well as lower rates of erectile dysfunction (ED). CONCLUSION: Most of the literature is in the form of case reports and small case series, thus limiting the quality and quantity of evidence available to draw decisive conclusions. However, from the available data, it is reasonable to presume that patients can undergo a trial of conservative management, then pursue embolization first with temporary agents. The analysis of the data demonstrated ED rates were higher with temporary agents than permanent agents. The literature quotes ED rates as low as 5% when using temporary agents and 39% with permanent agents. Our results were, in fact, the opposite, with higher ED rates when using temporary agents vs permanent (17-33% vs 8-17%). Further studies are required to better characterize the success and outcomes of angioembolization. Ingram AR, Stillings SA, Jenkins LC. An Update on Non-Ischemic Priapism. Sex Med Rev 2020;8:140-149.

Superselective Transcatheter Artery Embolization in Patients with Non-ischemic Priapism.

PURPOSE: To investigate the efficacy and safety of superselective transcatheter artery embolization in patients with non-ischemic priapism. MATERIALS AND METHODS: We retrospectively reviewed a cohort of 17 consecutive patients with non-ischemic priapism from September 2006 to August 2017. The median follow-up time was 8 months. RESULTS: Sixteen patients underwent superselective transcatheter artery embolization, and all had complete resolution of non-ischemic priapism. Fifteen of 16 patients (93.7%) underwent a single embolization without recurrence. A secondary embolization was required in one patient (6.3%) as a result of recurrence. Two of 16 patients (12.5%) had a decrease in their erectile function; one of the two patients had premorbid erectile dysfunction. Excluding the patient with premorbid erectile dysfunction, 14 of 15 patients (93.3%) maintained premorbid normal erectile function after embolization; the incidence of decrease in quality of erection is 6.7% (1/15). One patient did not undergo artery embolization because of negative findings of cavernous fistula by angiography. No angiography-related complications were found. CONCLUSION: Superselective transcatheter artery embolization is an effective and safe procedure for non-ischemic priapism.

Non-ischemic priapism following recurrent idiopathic ischemic priapism treated successfully with selective arterial embolization and postoperative vacuum therapy before delayed inflatable penile prosthesis placement: A single case report.

INTRODUCTION: Priapism is defined as a persistent tumescence or erection of the penis not associated to sexual desire and/or stimulation. Idiopathic recurrent priapism may also occasionally follow treatment of veno-occlusive priapism and represents a diagnostic and therapeutic challenge. CASE PRESENTATION: We report a single case of non-ischemic priapism that resulted after distal shunting procedure for severe and prolonged ischemic priapism and yet occurred without evidence of a cavernosal-sinusoidal fistula that was successfully treated with a bilateral selective arterial embolization. Our protocol of delayed inflatable penile prosthesis placement after a vacuum erectile device program was implemented. CONCLUSIONS: The continuing use of a vacuum erectile device represented a bridge and an adjuvant therapy useful to facilitate later prosthesis placement. Anatomical and functional outcomes were optimal. No postoperative complaints or complications were reported.

Advances in the understanding of priapism.

Priapism, a persistent penile erection lasting longer than 4 hours and unrelated to sexual activity, is one of the most common emergencies treated by urologists. Priapism can be categorized as ischemic, recurrent ischemic (stuttering), and non-ischemic. Advances in understanding the pathophysiology of various types of priapism have led to targeted management strategies. This review aims to provide an up-to-date picture of the pathophysiology and management of priapism. A search of Medline and PubMed for relevant publications using the term "priapism" was performed. In addition to the "classical" articles, emphasis was placed on publications from January 2013 to September 2016 to evaluate the most recent literature available. Though advances in both basic and clinical research continue and effective treatment options are available, methods for the prevention of priapism continue to be elusive.

Case Report: Conversion of a Low-Flow to High-Flow Priapism.

Priapism is defined as an erection lasting for more than 4 hours and can be grouped into 3 distinct subtypes: ischemic (low-flow), stuttering and non-ischemic (high-flow). Herein, we present an interesting case of conversion from a low-flow to high-flow priapism after a distal shunting procedure. This is a rare phenomenon that has a paucity of documented cases. Diagnosis requires prompt clinical suspicion and confirmatory testing including penile cavernosal blood gases and Doppler ultrasound.

Chronic post-traumatic high-flow priapism treated with temporary gelatin sponge embolization.

We report the case of a 26-year-old man who presented with a non-painful priapism with a history of 3 months permanent erection after suffering a perineal trauma. An arteriocorporal fistula with a turbulent flow between the right cavernosal artery and the corpus cavernosum, conclusive for a high-flow priapism was initially detected by colour Doppler ultrasound. A superselective embolization with Gelatin sponge was safe and effective to treat the high-flow priapism. The use of gelatin sponge resulted in a temporary embolization with long-term effect of penile detumescence and preservation of erectile function.