Diaphragm Plication: Who Needs It and What to Expect
Diaphragm paralysis is a condition that can impair breathing and reduce quality of life. It occurs when one or both sides of the diaphragm lose normal movement, often because of phrenic nerve injury, surgery, trauma, or an underlying neurological condition.
Diaphragm plication is an operation designed to treat symptoms caused by a persistently elevated, paralysed diaphragm. By tightening and flattening the affected portion of the diaphragm, the procedure can create more room for the lung to expand and may reduce breathlessness.
The procedure is not suitable for everyone. Patient selection depends on the severity of symptoms, lung function, the cause and duration of the paralysis, and the presence of other heart or lung conditions.
A thorough diagnostic assessment, usually including imaging and pulmonary function tests, is needed to determine whether surgery is likely to help.
What Is Diaphragm Plication?
Diaphragm plication is a surgical procedure used to treat symptomatic diaphragm paralysis. The surgeon folds and sutures the affected diaphragm into a lower, tighter position. This reduces its abnormal elevation and limits paradoxical movement, helping the lung on that side to expand more effectively.
For a fuller explanation of the operation, recovery, and how suitability is assessed, see this guide to diaphragm plication.
Candidates are usually people with confirmed unilateral diaphragm paralysis whose breathlessness, exercise limitation, or other symptoms significantly affect daily life. An elevated diaphragm on an X-ray alone does not necessarily mean that surgery is needed.
The operation may be performed through an open incision, video-assisted thoracoscopic surgery, laparoscopy, or a robotic-assisted approach. The choice of technique depends on the patient’s anatomy, previous surgery, the surgeon’s assessment, and local expertise. Minimally invasive approaches may be associated with less post-operative pain and a shorter hospital stay for suitable patients, but individual recovery varies.
Studies suggest that many appropriately selected patients experience improvement in breathlessness and lung function after plication. However, outcomes depend on factors including the cause of the paralysis, other respiratory conditions, body weight, overall fitness, and the length of time symptoms have been present.
What Causes Diaphragm Paralysis?
Diaphragm paralysis is usually related to dysfunction of the phrenic nerve, which controls diaphragm movement. Potential causes include trauma, surgery involving the chest, neck, heart, or upper abdomen, compression or injury affecting the nerve, and neurological disorders.
In some cases, no clear cause can be identified. This is often described as idiopathic phrenic nerve palsy. Viral illnesses have also been proposed as a possible contributor in some patients, although determining a direct cause can be difficult.
Chest X-rays may show an elevated hemidiaphragm on the affected side, but this finding alone does not prove paralysis. Establishing the underlying cause is important because it can influence prognosis, treatment options, and whether observation is appropriate before surgery is considered.
How Do Doctors Diagnose a Paralysed Diaphragm?
Diagnosing diaphragm paralysis usually requires a combination of clinical assessment, imaging, and tests of respiratory function.
A chest X-ray may be the first investigation and can show an elevated hemidiaphragm. However, several other conditions can also cause this appearance, so further assessment is often needed.
Fluoroscopic evaluation, commonly called a sniff test, can assess diaphragm motion during a sharp inhalation. In unilateral paralysis, the affected side may show reduced movement or paradoxical upward movement during inspiration. Ultrasound can also assess diaphragm movement without radiation and may be useful in experienced hands.
Pulmonary function tests assess lung capacity and airflow. In diaphragm weakness or paralysis, measurements such as forced vital capacity may be reduced, particularly when comparing results taken sitting and lying down. These findings must be interpreted alongside the patient’s symptoms and other lung conditions.
CT imaging may be used to investigate possible causes such as a mass, structural abnormality, or nerve compression in the chest or neck. In selected cases, electromyography and phrenic nerve conduction studies may help clarify whether the problem is related to the nerve or the muscle itself.
Who Is a Good Candidate for Diaphragm Plication?
Diaphragm plication is not appropriate for all patients with diaphragmatic paralysis. Suitable candidates are generally those with confirmed, persistent paralysis that causes clinically significant breathlessness, reduced exercise tolerance, difficulty lying flat, recurrent chest infections, or a meaningful decline in quality of life.
The presence of an elevated diaphragm on imaging is not, by itself, a reason to operate. The decision is based on symptoms, functional limitation, diagnostic findings, the likely cause of paralysis, and the patient’s overall health.
Other respiratory conditions, including chronic obstructive pulmonary disease, do not automatically rule out surgery, but they can affect the likely benefit and increase operative risk. A thoracic surgeon will consider lung function, body weight, cardiac health, previous operations, and anaesthetic suitability before recommending plication.
In some cases, clinicians may recommend a period of observation before surgery, particularly when nerve recovery remains possible.
How Should You Prepare for Diaphragm Plication?
Preparation begins with a pre-operative assessment, which may include blood tests, imaging, pulmonary function testing, electrocardiography, and review of existing medical conditions and medicines.
Patients should provide their surgical team with a complete medical history, including previous chest or abdominal surgery, heart and lung conditions, allergies, and all prescribed or over-the-counter medicines and supplements.
Blood-thinning medicines must only be stopped or adjusted according to the instructions of the surgical or prescribing team. Patients will also receive specific guidance about eating, drinking, and fasting before general anaesthesia.
It is sensible to arrange support at home in advance, especially for help with transport, shopping, heavy lifting, or caring responsibilities during the early recovery period. The surgical team will provide individual advice about activity restrictions and when it is safe to resume driving and work.
What Happens During Diaphragm Plication Surgery?
Diaphragm plication is performed under general anaesthesia. The surgeon accesses the diaphragm through an approach chosen for the individual patient, which may be open, thoracoscopic, laparoscopic, or robotic-assisted.
The elevated, weakened section of the diaphragm is folded and secured with sutures to place it under tension. This lowers and stabilises the diaphragm, preventing it from rising excessively into the chest and reducing paradoxical movement.
The exact number and size of incisions vary according to the surgical technique. A chest drain may be placed temporarily after some procedures to remove air or fluid from around the lung.
Length of hospital stay varies. Some patients go home after a short stay, while others need longer monitoring depending on their respiratory status, pain control, surgical approach, and any complications.
How Long Does Recovery From Diaphragm Plication Take?
Recovery after diaphragm plication varies between patients. It depends on the surgical approach, baseline health, other lung conditions, the demands of the patient’s work, and whether complications occur.
Hospital Stay Duration
Hospital stays may range from one to several days. During this time, the clinical team monitors breathing, oxygen levels, pain, wound healing, and any chest drainage.
Patients are encouraged to move safely, complete breathing exercises where advised, and gradually increase activity. Before discharge, the team will provide instructions on wound care, pain relief, activity, follow-up appointments, and symptoms that need urgent review.
Returning to Normal Activities
Light activity and short walks are usually encouraged as recovery progresses, but patients should avoid heavy lifting and strenuous exertion until their surgical team says it is safe.
Some people return to sedentary work within a few weeks, while physically demanding jobs may require a longer recovery period. Timelines should be guided by the surgeon’s advice and the individual’s recovery rather than a fixed schedule.
Regaining Full Energy
Fatigue is common in the weeks after major surgery. Energy levels often return gradually, and recovery may take several weeks or longer.
Follow-up appointments allow the surgical team to review symptoms, assess wound healing, consider repeat imaging or lung function testing where appropriate, and address concerns about breathlessness, pain, or activity progression.
What Are the Risks of Diaphragm Plication?
Like any operation, diaphragm plication carries risks. These include pain, bleeding, infection, blood clots, pneumonia, air leak, pleural effusion, injury to nearby structures, and complications related to general anaesthesia.
Less common but serious complications can include significant breathing problems, cardiac events, stroke, or the need for further treatment. The likelihood of these outcomes depends on individual health factors and the complexity of the procedure.
Previous chest or abdominal surgery, obesity, reduced heart or lung function, smoking, and other medical conditions can increase technical difficulty or operative risk. These factors do not automatically prevent surgery, but they should be discussed carefully during pre-operative planning.
Potential Surgical Complications
Potential complications include wound infection, bleeding, fluid collection around the lung, persistent air leak, and injury to nearby structures. The specific risks vary with the surgical approach and the patient’s medical history.
The surgical team will explain the likely benefits, alternatives, and relevant risks before surgery. Patients should report new or worsening breathlessness, chest pain, fever, wound redness, drainage, or leg swelling promptly during recovery.
Rare But Serious Risks
Rare but serious complications can occur with any major operation and general anaesthesia. These may include severe infection, respiratory failure, blood clots travelling to the lungs, heart problems, or stroke.
The exact risk cannot be accurately expressed as a universal percentage because it depends on the patient, the procedure, and the clinical setting. Pre-operative assessment helps identify modifiable risks and ensures the operation is planned as safely as possible.
How Successful Is Diaphragm Plication Long-Term?
Diaphragm plication can provide durable improvement in breathlessness, exercise tolerance, and lung function for appropriately selected patients with symptomatic unilateral diaphragm paralysis. However, reported outcomes vary between studies because the condition is uncommon, surgical techniques differ, and patient populations are small.
The aim of plication is to improve the mechanics of breathing by stabilising the elevated diaphragm. It does not repair the phrenic nerve or restore normal diaphragm muscle function.
Long-term results can be influenced by the underlying cause of paralysis, weight, coexisting lung or heart disease, and whether the patient has bilateral diaphragm weakness. Follow-up with the surgical and respiratory teams helps assess improvement and manage any ongoing symptoms.
For broader information on preparing for and recovering from thoracic surgery, the British Thoracic Society’s patient information resources can be useful.
Conclusion
Diaphragm plication is a surgical option for people with symptomatic diaphragm paralysis. The procedure tightens and stabilises the affected diaphragm to reduce its upward displacement and allow more effective lung expansion.
Surgery is generally considered when symptoms are persistent and significantly limit daily life, and when a detailed evaluation suggests that plication is likely to provide meaningful benefit.
Although many patients improve after surgery, results and recovery times vary. A consultation with a thoracic surgeon is essential to review diagnostic findings, discuss alternatives and risks, and determine whether diaphragm plication is appropriate for the individual’s circumstances.