Segmentectomy Surgery A targeted approach to lung health

Jul 2, 2025
Author: kiran

Segmentectomy surgery is also called pulmonary segmentectomy. It is a precise procedure that removes a segment of lung. Segmentectomy is different from lobectomy which removes the entire lung lobe. It preserves as much lung tissue as possible.

The surgery is performed most often in early-stage lung carcinoma, benign nodules, or localized tumors that need to be removed for diagnostic or therapeutic purposes. Segmentectomy is a popular option among patients who need targeted lung resection. This is due to the advancements of minimally-invasive techniques such as video-assisted surgery or robotic-assisted procedure.

Segmentectomy is a safe and effective way to save the lungs, whether it’s for cancer treatment or benign conditions. It has fewer complications, a faster recovery time, and a better quality of life.

Why Segmentectomy Surgery is Performed

When is segmentectomy surgery most commonly performed?

  1. Early-Stage Lung Cancer Diagnosis:-In patients diagnosed with Stage IA non-small cell lung cancer (NSCLC), segmentectomy is a highly effective alternative to lobectomy–especially for those with compromised pulmonary function. The cancerous tissue is removed while the healthy lung tissue is left.
  2. Poor Lung Function:- Segmentectomy is an option for patients with lung conditions such as COPD (Chronic Obstructive pulmonary Disease) who are unable to tolerate a lobectomy.
  3. Benign or Suspicious nodules:- Segmentectomy is a useful tool for both diagnosis and treatment when imaging reveals a single pulmonary nodule of uncertain pathology. It ensures that the margins are not obstructed while avoiding the removal of excessive lung tissue.
  4. Metastatic Disease:- When cancer has spread to the lung from another organ, but it is contained within a single segment of the lung, surgeons can perform a segmentectomy either as a curative measure or symptomatic treatment.
  5. The Minimally Invasive Benefit:- Segmentectomy is less invasive than lobectomy. This results in shorter hospital stays and faster recovery.
  6. Segmentectomy Surgery Symptoms:-Segmentectomy is a surgical procedure, not a condition. However, the patients may exhibit symptoms because of the underlying conditions that require the surgery (usually lung cancer or infection).
  • Cough that persists
  • Chest pain or discomfort
  • Shortness of Breath
  • Hemoptysis is the coughing up of blood.
  • Recurrent lung infections
  • Noise or wheezing breathing
  • Unexpected weight loss
  • Fatigue or general weakness

If you experience any of these symptoms, it is important to undergo diagnostic testing in order to determine whether a lung segmentectomy (or another surgical intervention) is required.

Segmentectomy surgery is required for certain conditions

Segmentectomy can be performed to treat underlying diagnoses or causes, including:

  1. Non-Small Cell Lung Cancer:- Segmentectomy is considered curative when cancer is contained to one segment of the lungs and is detected early.
  2.  Benign Lung Nodules:- On scans, non-cancerous tumors such as hamartomas and inflammatory pseudotumors may grow or appear ambiguous. This can lead surgeons to remove these growths for biopsy or prevention.
  3.  Metastatic Lesions:- Metastases can spread from other organs to lung segments. Such lesions can be controlled or eliminated by a targeted resection.
  4. Tuberculosis and Fungal Infections:- Localized chronic infections, such as TB or aspergilloma can cause irreversible lung damage, which may require removal.
  5. Congenital Abnormalities:- Segmental removal of lung structures, such as sequestrations and bronchial atresias, is sometimes necessary to relieve symptoms or control infection.

Diagnosis – How do you determine the need for a segmentectomy?

A comprehensive diagnostic approach will be used to determine if a segmentectomy should be performed.

Image Tests

  • Chest X ray is often the first test to reveal abnormalities.
  • CT (Computer Tomography) scan: This provides detailed images of the lung, which are essential to locating and assessing nodules, their size, shape and location.

PET (Positron-Emission Tomography) detects metabolic activity, and can help differentiate benign from malignant lesions.

  1. Bronchoscopy:-Use to visualize the airways, and collect tissue or liquid samples.
  2. Biopsy:-A biopsy by needle or surgery can confirm if a growth is malignant and help guide treatment.
  3. Pulmonary Function Tests:- Assess the lung capacity of the patient and determine whether they are able to tolerate segmentectomy, or if a less invasive treatment is needed.
  4. Molecular & genetic Testing:-Tests on biopsy samples for cancer can reveal genetic mutations which influence treatment and prognosis.
    Treatment: What happens during segmentectomy surgery?

        Pre-operative preparation

  • If needed, smoking cessation and pulmonary rehabilitation
  • Blood tests, ECG and anesthesia consultation
  • Fasting for 6-8 hours prior to surgery

Surgical Techniques

Segmentectomy is performed by:

  • Thoracotomy : Open surgery that is more traditional with a longer incision.
  • VATS (Video Assisted Thoracoscopic surgery): A minimally invasive procedure with a camera that allows for precision.
  • Robotic-assisted surgery: It offers greater precision, less trauma and faster healing.

During surgery, the doctor:

  • Isolates and identifies the lung segment that contains the lesion
  • Tie off the segmental bronchus & arteries
  • Removes the target segment
  • Examine surrounding tissues and lymph nodes to check for possible spread

Postoperative Care

  • Hospital stay: 2-5 (depending on the surgical approach).
  • You can use chest tubes to drain air or fluid
  • Exercises in breathing and physiotherapy is essential
  • It may take several weeks for full recovery.

Conclusion

Segmentectomy surgery is a tissue-preserving, tailored solution to a variety of lung conditions – from early-stage cancers and benign nodules. The precision of the surgery makes it a great option for patients who need intervention, but still want to maintain as much lung function as they can.
Segmentectomy has become a popular option for thoracic and pulmonologists around the world as minimally-invasive techniques have improved.
Consult a thoracic surgeon if you have a concern about your lung health or a suspected pulmonary nodule. The results of a thorough evaluation will determine if segmentectomy surgery would be the best and most beneficial option.

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