Urology

Priapism

Priapism

Priapism is a painful, prolonged erection lasting over four hours without sexual stimulation. It requires urgent treatment to prevent tissue damage and preserve erectile function.

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Priapism is a urological crisis, which is observed with the development of a perpetual, undesired and also painful penile erection of over 4 hours unrelated to sexual arousal. It is important to treat in time so as to avoid the long-term effects of complications like erectile dysfunction.

Types of Priapism

Ischemic (known as low‐flow) priapism

  • Most common and serious type
  • Due to the trapping of the blood in the penis and non-draining.
  • Painful, rigid erection
  • In need of acute care.

Non-Ischemic (High-flow) priapism

  • Due to unregulated arterial inflow, usually after an injury or trauma. 
  • Erection is not entirely pain-free and completely stiff.
  • Not urgent but should be checked.

Priapism (Recurrent) Stuttering

  • The repetition of ischemic priapism.
  • Frequently accompanying sickle cell disease or blood disorders, or drug use.

Priapism symptoms

The symptoms of priapism vary with ischemic (low-flow) and non-ischemic (high-flow).

Ischemic (low-flow) priapism is a urologic emergency

  • This is the agonizing and the harmful one.

Main symptoms

  • Painful erection lasting more than 4 hours.
  • A rigid/firm penile shaft, the tip of which (glans) is soft.
  • The color of the penis is dark red, bluish or purplish. 
  • Increasing pain over time
  • Tenderness and swelling
  • No post ejaculation relief.
  • Penis is cold with poor circulation.
  • Numbness or heavyness may occur in later stages.

Why this happens:

  • The blood gets stuck, oxygen quantities are reduced and the tissue starts to bear, that is why it is an emergency.

Non-Ischemic Priapism (High-Flow) -Less painful

  • This is normally an outcome of trauma or an injury.

Main Symptoms

  • Erection painless or achingly sore.
  • Parcel erect penis (half-hard)
  • Normal skin color
  • Rigidity of erection may vary.
  • May start hours or days following an injury to the groin/perineum.

Why this happens:

  • There is uncontrolled flow of blood into the penis as a result of a fistula (arterial leak) yet the oxygen level is normal.

Priapism (Repeated) Stuttering

Main Symptoms:

  • The recurrence of painful erections.
  • Episodes arrive, disappear and do not last more than 4 hours.
  • It usually takes place at night or early in the morning.
  • Observed frequently in sickle cell disease.

Priapism causes

Priapism is categorized as Ischemic (low-flow), Non-ischemic (high-flow) as well as Stuttering (recurrent). Each has different causes.

Causes of Low-Flow Priapism (Ischemic)

  • This is the commonest and the worst type. The blood clots on the penis and never leaves. 

Blood Disorders (Type 1 Cause)

These are the causes of thick blood or misshaped blood cells: 

  • Sickle cell disease (prevalent in children)
  • Leukemia
  • Thalassemia
  • Multiple myeloma

Medications

Certain medications may alter blood flow or nerve signals:

  • Antidepressants
  • Antipsychotics
  • Anticoagulants / blood thinners
  • Alpha blockers (for high blood pressure or an enlarged prostate)

Recreational Materials

  • Alcohol intoxication Cocaine
  • Marijuana (rare but reported)

Medical Conditions

  • Spinal cord injury
  • Neurological diseases
  • Metabolic disease
  • Diabetes (nerve-related)

Penile or Perineal Trauma 

  • Trauma with resultant outflow impairment.

Idiopathic

  • No cause is found in 30-50 % of cases.

Nonischemic Priapism (High-Flow)

  • This one is often not so dangerous, not so painful.

Main Causes 

Penile, perineal or groinal trauma

  • Frequently as a result of sport injuries, bicycle accidents or direct impact.
  • Results in development of arteriovenous fistulae, through which excessive blood influx is permitted.
  • Arterial injury after surgery or after injection.

Stuttering Priapism (Recurrent) Causes

  • This is intermittent ischemic cycles.

Typical Reasons

  • Sickle cell disease (most common) 
  • Metabolic or genetic defects of blood circulation.
  • Certain medications
  • Erections turning unstable due to sleep.
  • Therapy of erectile dysfunction.

Priapism treatment

  • They are treated based on ischemic (low-flow), non-ischemic (high-flow), and stuttering (recurrent).
  • Ischemic priapism is an emergency in a hospital as it is a medical condition.

Management of Ischemic Priapism (Low-Flow) 

  • This is an emergency. The treatment must be started within 4-6 hours with a view of avoiding erectile dysfunction.

Step 1: Early-Stage Interventions.

  • Ice (possibly, but not effective after complete ischemia)
  • Exercise such as walking up stairs (to activate adrenaline).
  • Oral pseudoephedrine (occasionally as early, although not conclusive)
  • In case the erection takes more than 4 hours, then proceed to the hospital.

Step 2: Hospital Treatment

Aspiration (First-Line Treatment)

  • The corpora cavernosa is penetrated with a small needle.
  • Trapped blood is drained
  • This alleviates pressure and pain.
  • Irrigation is often a follow-up to it.

Irrigation with Saline

  • Normal saline is used to flush the corporal spaces.
  • Helps is used to take away thick, deoxygenated blood.

Intracavernosal Injection (Phenylephrine)

  • A vasoconstrictor drug (Phenylephrine) is injected into a penis. 
  • Lowers blood inflow and detumescence.
  • Blood pressure needs to be monitored.
  • Early success rate: 60-80%

Step 3: Surgical Treatment 

Shunt Procedures

A surgical opening is done through which the blood can drain out:

  • Distal shunts (Winter, Ebbehoj, Al-Ghorab)
  • Proximal shunts (Quackals, Sacher)
  • Indicated in acquired priapism > 12 hours or following failure of aspiration. 

Step 4: Penile Prosthesis (Delayed or Stuttering Priapism) 

  • Take into account whether priapism is >36-48 hours.
  • The damage of tissues can lead to permanent erectile dysfunction.
  • In order to retain penile form/function, early prosthesis can be suggested.

Non-Ischemic Priapism (High-Flow) Treatment

  • This is not an emergency and is normally painless.

Management

  • Perineal compression and ice packs.
  • Observation (most cases correct themselves)
  • Arterial embolization under ultrasound guidance.
  • Obstructs pathological arterial flow.
  • High success rate
  • Surgery is rarely needed
  • No risk of sexual dysfunction provided that it is treated.

Stuttering Priapism (Recurrent Episodes): Treatment

  • Objective: avoid recurring ischemic attacks.

Medications Involved

  • PDE-5 antagonists - paradoxically stabilize the blood flow.

Hormonal therapy

  • GnRH agonists
  • Anti-androgens
  • 5-alpha reductase inhibitor
  • Sickle cell disease Hydroxyurea.
  • Oral decongestants (such as pseudoephedrine) at night. 

Lifestyle changes 

  • Stop alcohol and recreational drugs.     
  • Some of the triggers that should be avoided include sexual stimulation before sleep.
  • Treat comorbidities (in particular sickle cell disease)

Factors Affecting Priapism surgery cost India

The key variables that facilitate the difference in costs are:

Type & severity of the condition

  • Surgery may be more involved (e.g., shunting procedures) if ischemic (low-flow) priapism is longstanding. 
  • If there are complicating medical conditions (bleeding disorders, sickle cell disease, etc.) more care or longer hospitalization may be necessary. Permissibly, in one hospital, the cost varies according to patient’s health condition (comorbidity like diabetes, hypertension, obesity). 

Surgery type / procedure needed

  • Aspirations or other less-complex interventions are significantly cheaper than significant shunts operation.

Surgeon/Hospital credentialing

  • More expensive are the premium hospitals (metro cities, high-specialty, international accreditation).
  • The fees of surgeons with very high expertise or reputation will be high.

Room type, length of stay in hospital

  • The single rooms are more expensive as compared to shared rooms.
  • The degree of the hospital cost was positively related to the length of stay. As an example: “Room type chosen at admission is mentioned as a cost factor. 

Services to be included vs. exclusions

  • It may include: surgeon, anaesthetist, OT (operation theatre) charges, ward charges, basic investigations, pharmacy consumables, etc e.g. one package includes all these. 
  • Cases of exclusions: additional procedures, ICU, protracted stay, complications, special implants, blood components. Then when you require additional care, it will increase the cost.

City / location of hospital

  • The expenses in Delhi/Gurugram/Mumbai can be greater than in the smaller cities.
  • The overheads at Metro hospitals might be increased and in many cases, medical tourism might charge premium.

International patient services / medical tourism

  • The price can be more expensive in case you are an overseas patient, or you are extravagant (airport collection, translation, private transport, VIP room).
  • International patients are quoted some packages in USD. 

Risk of complications / further interventions

  • In case there are tissue injuries due to extended periods of priapism, further reconstructive surgery, implants or prolonged follow-up can be instituted and this increases the cost.
  • Diagnostics (imaging, Doppler, blood gas) and underlying cause (e.g., sickle cell) treatment can be associated with extra expenses. Example: one of the sites will show expenses on injections, medicines, etc.

Priapism diagnosis

To diagnose priapism, it is swiftly evaluated to either be ischemic (low-flow) or non-ischemic (high-flow) as the treatment is determined by its classification. Ischemic priapism is a health emergency.

Medical History, Physical Examination

History

The doctor will ask:

  • Duration of erection
  • Intensity of pain (ischemic = severe pain; non-ischemic = mild or no pain) Use of drugs (ED drugs, antidepressants, antipsychotics) 
  • Recreational drug use
  • Recent trauma to penis/groin
  • Past history of sickle cell disease or blood disorders
  • Past incidences of priapism (stuttering priapism)

Physical Examination

Important findings:

  • Ischemic priapism: Penile shaft is hard, glans soft, dark in color, extremely tender.
  • Non-ischemic priapism: Semi-erect, not so rigid, coloring of the skin is normal, minimum pain.

Cavernosal Blood Gas Analysis (Most important test)

  • Needle aspiration of the blood from the corpora cavernosa is performed using a small needle.

Ischemic Priapism (Low-flow) 

  • pO₂: Low
  • pCO₂: High
  • pH: Acidic (<7.25)
  • Blood is green thick, deoxygenated.

High-flow Non-Ischemic Priapism

  • Normal oxygenation
  • Normal pH
  • Blood appears bright red
  • The test immediately establishes the type and directs treatment.

Penile Color Doppler Ultrasound

A Doppler scan evaluates:

  • Blood circulation within the penis and in the penis.
  • Arterial fistula (in high-flow priapism) present.
  • Condition of tissues (fibrosis (late) signs)

Findings:

  • Ischemic priapism: Low or absent cavernous arterial flow.
  • Non-ischemic priapism: Normal or high arterial flow. 

Laboratory Tests

These assist in establishing underlying reasons:

Complete Blood Count (CBC)

  • Diagnose the sickle cell disease, leukaemia, or infection

Reticulocyte Count / Peripheral Smear 

  • Confirms sickle cell crisis or hemoglobin variants. 

Toxicology Screening

  • In case of a suspicion of drug use (cocaine, marijuana).

Coagulation Profile

  • Significant prior to surgery or aspiration.

Serum Chemistry

  • Evaluate metabolic status, hydration and acidosis. 

Additional Tests (as needed)

MRI or CT (infrequently) 

  • Only used in case of severe trauma, or in case of ambiguous vascular damage.

Arterial Blood Gas

  • In trauma patients to compare systemic and corporal blood oxygenation.

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Conclusion

Priapism is the lingering of the penis to over four hours and needs timely assessment to decide whether it is ischemic or not. Ischemic priapism is an urological emergency that occurs when deoxygenated blood gets trapped in the penis and causes serious pain and threat of irreversible erectile dysfunction in case of late treatment. Non-ischemic priapism, which typically results due to trauma, is not acute, less painful, and requires medical evaluation. Proper diagnosis by examining the body, use of cavernosal blood gas and Doppler ultrasound assists in appropriate management. Ischemic priapism is normally treated by aspiration, intracavernosal drugs, and surgery when needed whereas non-ischemic ones can be treated by observation or embolization. Quick treatment, detection of underlying pathophysiology such as blood disorders or medications, and preventive measures of recurrent attacks at the right time is needed to maintain sexual functioning and avoid long-term complications.

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