Indwelling Pleural Catheter (PleurX)

An indwelling pleural catheter (IPC) is a thin, flexible, tunneled silicone tube that is placed through the chest wall into the pleural space to allow patients with recurrent pleural effusion to drain fluid at home on an ongoing basis. The most widely used IPC is the PleurX catheter system, which features a one-way valve that prevents air from entering the pleural cavity and allows the patient or a caregiver to connect a vacuum drainage bottle and drain fluid as needed — typically every 1–3 days. For patients with mesothelioma, the IPC has become an increasingly important alternative to talc pleurodesis for managing malignant pleural effusion.¹

The catheter is inserted as an outpatient procedure under local anesthesia and conscious sedation. A small incision is made on the lateral chest wall, and the catheter is tunneled under the skin for approximately 5 centimeters before entering the pleural space. This subcutaneous tunnel creates a tissue seal around the catheter that reduces the risk of infection and prevents the catheter from being accidentally dislodged. The external portion of the catheter remains capped with a valve between drainage sessions and is secured with a small dressing. The entire insertion procedure typically takes 30–45 minutes, and most patients go home the same day.²

One of the most significant advantages of the IPC is the phenomenon of spontaneous pleurodesis. Studies show that approximately 46% of patients with IPCs achieve spontaneous fusion of the pleural surfaces over time — likely because repeated drainage brings the visceral and parietal pleura into contact, promoting inflammatory adhesion formation. When spontaneous pleurodesis occurs, fluid production ceases and the catheter can be removed. This outcome essentially achieves the same goal as surgical pleurodesis without requiring a separate procedure or hospital admission.³

The IPC is particularly valuable for mesothelioma patients with trapped lung — a condition in which tumor encasement prevents the lung from re-expanding after fluid drainage, making traditional pleurodesis ineffective. Because the IPC does not require lung re-expansion to function, it remains effective even in patients with significant tumor burden on the visceral pleura. The ability to manage drainage at home also reduces hospital visits, preserves independence, and allows patients to continue treatment with minimal disruption to daily life.⁴

Patient selection for an indwelling pleural catheter involves clinical evaluation to ensure the device is appropriate:¹

• Confirmed malignant pleural effusion — Fluid cytology or pleural biopsy confirming malignant cells, or a clinical picture consistent with malignant effusion in a patient with known mesothelioma
• Recurrent symptomatic effusion — The effusion must be causing symptoms (shortness of breath, chest discomfort) and must have recurred after initial thoracentesis
• Trapped lung assessment — Chest imaging after initial drainage determines whether the lung re-expands. Trapped lung is actually an indication favoring IPC over pleurodesis, since pleurodesis requires lung-to-chest-wall apposition to succeed
• Patient or caregiver capability — The patient or a family member must be willing and able to perform home drainage after receiving training. Home health nursing can also provide drainage services
• Coagulation status — Bleeding disorders or anticoagulation therapy should be assessed and managed before catheter insertion

The IPC placement procedure and subsequent home management follow a standardized protocol:²

• Insertion procedure — Performed as an outpatient under local anesthesia with sedation. Ultrasound guidance confirms the effusion location. A small incision is made, and the catheter is tunneled subcutaneously before entering the pleural space. Initial drainage (typically 1,000–1,500 mL) is performed during the procedure. The external catheter is capped and dressed
• Patient training — Before discharge, the patient and/or caregiver receive hands-on training in the drainage procedure: connecting the vacuum bottle, opening the valve, draining until flow stops or symptoms resolve, closing the valve, and applying a clean dressing. A training video and written instructions are provided
• Home drainage schedule — Most patients drain every 1–3 days, depending on the rate of fluid reaccumulation. Each drainage session takes approximately 15–30 minutes and removes 500–1,500 mL of fluid. Patients are instructed to stop draining if they experience chest pain, coughing, or lightheadedness³
• Monitoring — Regular follow-up appointments (typically every 2–4 weeks) assess catheter function, monitor for complications, and evaluate fluid output trends. Decreasing drainage volumes may indicate spontaneous pleurodesis
• Catheter removal — When drainage falls below 50 mL on three consecutive attempts and imaging confirms no significant residual effusion, the catheter can be removed in a brief office procedure. Approximately 46% of patients achieve this endpoint³

Indwelling pleural catheters have demonstrated strong clinical outcomes in managing malignant pleural effusion:³

• Symptom control — IPCs provide effective dyspnea relief in approximately 90–95% of patients, comparable to or exceeding pleurodesis success rates
• Spontaneous pleurodesis rate — Approximately 46% of patients achieve spontaneous pleurodesis, allowing catheter removal. This rate may be higher with more frequent drainage schedules (daily vs. every other day)
• Hospital days saved — Randomized trials comparing IPCs to pleurodesis show that IPC patients spend significantly fewer days in the hospital (median 1 day vs. 4–6 days for pleurodesis)
• Complications — The most serious complication is pleural space infection (empyema), occurring in 2–5% of patients. Other complications include catheter tract metastasis (rare in mesothelioma), catheter blockage, and catheter dislodgement. Most complications are manageable with antibiotics or catheter replacement⁴
• Quality of life — Studies consistently show improved breathlessness scores, physical function, and overall quality of life in patients managed with IPCs

Living with an indwelling pleural catheter requires some adjustment, but most patients adapt well to the routine:⁴

• Drainage routine — Establish a consistent drainage schedule (e.g., every other morning). Keep drainage supplies organized and accessible. Most patients become comfortable with the procedure within 2–3 sessions
• Catheter care — Keep the insertion site clean and dry. Change the dressing regularly as instructed. Inspect the site for redness, swelling, warmth, or discharge that could indicate infection
• Activity — Most daily activities can continue with an IPC in place. Avoid submerging the catheter site in water (no swimming or bathing in tubs). Showering is permitted with a waterproof dressing
• Warning signs — Contact your medical team immediately if you develop fever (temperature above 100.4°F / 38°C), increasing redness or pain around the catheter site, cloudy or foul-smelling drainage fluid, or sudden shortness of breath
• Supply management — Drainage bottles and dressing kits are typically delivered to your home by a medical supply company. Ensure you reorder supplies before running out