Paracentesis and Thoracentesis

Methuen Hospital’s Paracentesis and Thoracentesis Clinic offers outpatient procedures to remove excess fluid from the abdomen or lungs. These procedures relieve symptoms like bloating, pressure, and shortness of breath. Most patients go home the same day.

Our team provides coordinated care in a comfortable outpatient setting with timely scheduling, clear instructions and follow-up communication for both patients and referring physicians.

Conditions treated

Fluid buildup in the abdomen or around the lungs can develop for many reasons. When the body produces or holds on to more fluid than it can manage, it often signals an underlying condition that needs attention. We treat patients with ascites (fluid in the abdomen) and pleural effusion (fluid around the lungs) related to:

  • Cancer
  • Heart failure
  • Infection or inflammation
  • Kidney disease
  • Liver disease or cirrhosis

Symptoms these procedures treat

  • Abdominal bloating or pressure
  • Feeling full quickly
  • Unexplained weight gain
  • Shortness of breath
  • Discomfort with breathing

What to expect during the procedure

  1. You are positioned comfortably
  2. The skin is cleaned and numbed with a local anesthetic
  3. A small needle and thin tube remove the fluid
  4. A bandage is applied
  5. Most visits take less than 2 hours including a short recovery period. Patients go home the same day.

Is paracentesis or thoracentesis painful?

Most patients feel only mild pressure. A brief pinch from the numbing medication is common. Significant pain is uncommon. These are low-risk outpatient procedures performed by experienced physicians.

Recovery

Most patients return to normal activity the next day. After the procedure:

  • Rest for the remainder of the day
  • Keep the site clean and dry
  • Avoid strenuous activity briefly
  • Watch for fever, increased pain, redness, or shortness of breath

How to prepare

  • Review your current medications with your doctor
  • Adjust medications if instructed
  • Arrange transportation if needed

Your care team will provide specific instructions before your visit.

Most procedures don’t take long (less than an hour), but you’ll have a short recovery period and will talk with your clinical team several times during your visit. \

Many patients notice relief shortly after — reduced pressure, easier breathing, or less bloating.

Yes. It is a low-risk outpatient procedure. Rare risks include infection, bleeding, or injury to nearby tissue.

Yes. It is a low-risk outpatient procedure. Rare risks include infection, bleeding, or lung complications such as pneumothorax.

Call if you have fever, chest pain, worsening shortness of breath, or redness or swelling at the site.