Segmentectomy surgery in India for Lung cancer has undergone a remarkable transformation over the last decade. Not long ago, removing an entire lobe of the lung—known as a “lobectomy”—was considered the gold standard for almost every patient with early-stage lung cancer. Today, advances in imaging, surgical technology, and cancer biology have created an exciting alternative called “segmentectomy surgery“. This procedure removes only the diseased segment of the lung while preserving the healthy portions, allowing patients to retain more lung function without compromising cancer outcomes in carefully selected cases.
The growing interest in segmentectomy is not merely a surgical trend. Major international studies and updated guidelines increasingly support anatomical segmentectomy for selected patients with small, peripheral, node-negative lung cancers. Recent evidence suggests that for tumors measuring 2 cm or less, segmentectomy can provide survival outcomes comparable to—and in some studies even better than—lobectomy while preserving more healthy lung tissue. (MDPI)
In India, especially in advanced thoracic surgery centers in metropolitan cities such as Delhi, Mumbai, Chennai, Bengaluru, and Hyderabad, segmentectomy has emerged as a sophisticated treatment option. The procedure is most commonly performed through minimally invasive approaches such as Video-Assisted Thoracoscopic Surgery (VATS) and robotic surgery, resulting in smaller incisions, reduced pain, and faster recovery.
For patients diagnosed with a small lung nodule or early-stage lung cancer, understanding segmentectomy can be the difference between losing a large portion of the lung and preserving valuable respiratory reserve for the future.
Understanding Segmentectomy Surgery
The human lungs are remarkably organized structures. Each lung is divided into lobes, and each lobe is further divided into smaller anatomical units called segments. These segments have their own blood supply, lymphatic drainage, and airway branches, making them natural surgical units that can be removed independently.
A segmentectomy involves removing one or more of these anatomical segments while preserving the rest of the lobe. Think of the lung as a large tree. Instead of cutting down an entire branch, the surgeon carefully removes only the affected twig while keeping the healthy portions intact. This concept of precision surgery has become increasingly important as more lung cancers are detected at an earlier stage through CT scans and screening programs.
Unlike wedge resection, which simply removes the tumor with a surrounding margin of lung tissue, segmentectomy follows anatomical planes and includes systematic lymph node assessment. This makes it a more oncologically sound procedure while still preserving lung tissue. Studies presented over the last few years continue to show that anatomical segmentectomy offers superior cancer control compared with non-anatomical wedge resection for appropriately selected patients. (STS)
The goal is simple: remove all cancer while preserving as much normal lung as possible.
How Segmentectomy Differs from Lobectomy
For decades, lobectomy was considered the benchmark operation for early lung cancer. In a lobectomy, an entire lobe of the lung is removed. While highly effective, it inevitably sacrifices a significant amount of healthy lung tissue.
Segmentectomy as compared to Lobectomy takes a more tailored approach. Instead of removing an entire lobe, only the affected segment is excised. This distinction may sound small, but it can have substantial implications for long-term breathing capacity, especially in smokers, elderly patients, or individuals with chronic lung diseases such as COPD.
Recent international data have challenged long-held assumptions regarding lobectomy superiority. Landmark trials such as JCOG0802 demonstrated excellent long-term outcomes with segmentectomy in carefully selected patients with small peripheral lung cancers. Five-year overall survival in the segmentectomy arm exceeded that of lobectomy in this study. (jtcvs.org)
That does not mean segmentectomy is appropriate for every patient. Larger tumors, centrally located lesions, and cancers with suspected lymph node involvement often still require lobectomy. Updated CHEST guidelines continue to recommend lobectomy for tumors larger than 2 cm or centrally located lesions in medically fit patients. (Chest Journal)
The decision is therefore highly individualized and depends on tumor characteristics, lung function, patient age, and surgical expertise.
Why Segmentectomy Is Gaining Popularity Worldwide
The rise of segmentectomy reflects a broader shift in modern medicine toward precision treatment. Surgeons are increasingly asking a simple question: “Can we achieve the same cancer cure while removing less healthy tissue?”
For many early-stage lung cancers, the answer appears to be yes.
Improved CT imaging has led to the detection of smaller lung nodules than ever before. Many of these lesions are diagnosed before they become large or spread to lymph nodes. This early detection creates an opportunity for lung-preserving surgery.
International guidelines increasingly recognize segmentectomy as an acceptable treatment option for carefully selected peripheral tumors measuring 2 cm or less without nodal involvement. Recent guideline updates from CHEST and NCCN endorse minimally invasive segmentectomy for appropriately selected early-stage non-small cell lung cancers. (MDPI)
The philosophy behind this evolution is similar to breast-conserving surgery replacing routine mastectomy decades ago. When equivalent cancer outcomes can be achieved with less tissue removal, patients often benefit from better quality of life and preserved organ function.
This paradigm shift is one of the most important developments in thoracic surgery today.
Who Is a Candidate for Segmentectomy?
Not every lung cancer patient is suitable for segmentectomy. Careful patient selection remains the cornerstone of success.
The ideal candidate typically has a small peripheral non-small cell lung cancer measuring 2 cm or less, with no evidence of lymph node involvement or distant spread. Several guidelines specifically identify these patients as the group most likely to benefit from lung-preserving surgery. (PMC)
Patients with reduced lung function are another important group. Someone with severe COPD, emphysema, pulmonary fibrosis, or a history of prior lung surgery may not tolerate the removal of an entire lobe. In such situations, preserving lung tissue becomes critically important.
Age alone is not a contraindication. Many elderly patients undergo minimally invasive segmentectomy successfully. The key considerations are physiological fitness, pulmonary reserve, and cancer characteristics rather than chronological age.
A thorough evaluation usually includes:
- High-resolution CT scan
- PET-CT scan
- Pulmonary function testing
- Cardiac assessment when indicated
- Bronchoscopy in selected patients
- Multidisciplinary tumor board discussion
Only after integrating all these factors can the optimal surgical strategy be determined.
Conditions Treated with Segmentectomy
Although lung cancer remains the most common indication, segmentectomy is not limited to cancer treatment.
Early-stage non-small cell lung cancer represents the largest and fastest-growing indication. Increasingly, surgeons are using segmentectomy for small adenocarcinomas, ground-glass opacities, and selected metastatic lung lesions.
The procedure may also be employed for certain benign conditions. These include localized bronchiectasis, congenital lung malformations, sequestration, benign tumors, and selected infectious diseases where disease is confined to a specific segment.
In countries like India, where tuberculosis remains common, segmentectomy occasionally plays a role in managing localized post-TB destruction, recurrent hemoptysis, or focal bronchiectatic disease. The advantage lies in removing only the diseased segment while preserving the maximum amount of functioning lung.
Every case requires individual assessment, and the decision should ideally be made by a dedicated thoracic surgeon experienced in both oncological and benign lung surgery.
Types of Segmentectomy Surgery
Segmentectomies are not all the same. Thoracic surgeons broadly classify them into simple and complex procedures.
Simple segmentectomies involve anatomically straightforward segments such as the superior segment of the lower lobe. These procedures generally have well-defined anatomical boundaries and are technically less demanding.
Complex segmentectomies involve intricate anatomical variations and multiple intersegmental planes. Examples include S1 segmentectomy, S2 segmentectomy, trisegmentectomy, and S10 segmentectomy. These operations require meticulous dissection of segmental arteries, veins, and bronchi while ensuring adequate margins around the tumor.
Complex segmentectomies represent some of the most technically demanding procedures in thoracic surgery. Success depends heavily on detailed preoperative planning, advanced imaging reconstruction, and extensive surgical experience.
With increasing adoption of 3D imaging, fluorescence-guided surgery, robotic platforms, and advanced VATS techniques, surgeons can now perform highly sophisticated segmentectomies that were considered extremely challenging just a decade ago.
Surgical Approaches Used in India
Modern segmentectomy is rarely performed through large chest incisions. Minimally invasive surgery has become the preferred approach whenever feasible.
Video-Assisted Thoracoscopic Surgery (VATS) remains the most widely used technique. Through small incisions, a camera and specialized instruments are inserted into the chest, allowing the surgeon to perform the operation without spreading the ribs. The advantages include less pain, shorter hospital stay, faster return to daily activities, and reduced complications compared with traditional open surgery.
Robotic-assisted thoracic surgery (RATS) represents the next evolution. Robotic platforms provide enhanced magnification, superior dexterity, tremor filtration, and improved visualization of tiny segmental structures. Current guidelines recognize robotic surgery as a safe and effective alternative to VATS when performed by experienced surgeons. (MDPI)
In major Indian centers, both VATS and robotic segmentectomy are increasingly available, bringing world-class thoracic surgical care within reach of Indian patients.
The Step-by-Step Surgical Journey
The journey begins long before the operation itself.
Preoperative planning is critical. Surgeons study CT scans in detail, evaluate lymph nodes, assess pulmonary function, and map the exact location of the tumor. Many centers now use 3D reconstruction software to visualize segmental anatomy before surgery.
During the procedure, the affected segmental artery, vein, and bronchus are carefully identified and divided. The intersegmental plane is then delineated and divided while maintaining adequate oncological margins. Systematic lymph node sampling or dissection is performed to ensure accurate staging.
Current recommendations emphasize obtaining margins of at least 2 cm or the diameter of the tumor, whichever is greater, whenever technically feasible. (Current Challenges in Thoracic Surgery)
Following surgery, most patients spend a short period in recovery before returning to the ward. Chest drains are removed when air leaks resolve and drainage decreases. Many patients undergoing minimally invasive surgery can return home within a few days. Long-term follow-up includes periodic CT scans and surveillance according to international lung cancer guidelines.
Benefits and Limitations of Segmentectomy
The most obvious advantage is preservation of lung tissue. Patients often retain better postoperative pulmonary function, which can be particularly valuable if future lung disease develops.
Additional benefits may include:
- Better preservation of respiratory reserve
- Potentially improved quality of life
- Reduced impact on exercise capacity
- Opportunity for future lung surgery if required
- Excellent cancer outcomes in selected patients
Yet segmentectomy is not without challenges. Local recurrence rates can be slightly higher if margins are inadequate or if patient selection is inappropriate. Some studies suggest that tumors larger than 2 cm may still be better managed with lobectomy. (Chest Journal)
The operation is technically demanding and requires expertise in thoracic anatomy, minimally invasive surgery, and lung cancer management. A poorly performed segmentectomy can compromise oncological outcomes.
The key message is clear: segmentectomy works best when performed for the right patient, for the right tumor, by the right surgeon.
Segmentectomy Surgery in India: Cost, Expertise, and Outcomes
India has become a major destination for advanced thoracic surgery. Patients from across South Asia, the Middle East, Africa, Central Asia, and even Western countries increasingly travel to India for specialized lung cancer care.
The cost of segmentectomy in India is generally significantly lower than in North America, Europe, or East Asia while maintaining high standards of surgical expertise. Costs vary depending on hospital category, city, surgical approach, ICU stay, pathology requirements, and postoperative care.
Major metropolitan centers offer advanced VATS and robotic thoracic surgery programs comparable to international standards. Outcomes are increasingly aligned with leading global centers, particularly when surgery is performed by dedicated thoracic surgeons.
Patients should look beyond cost alone and evaluate surgeon experience, hospital infrastructure, multidisciplinary cancer support, pathology expertise, and long-term follow-up services.
When it comes to cancer surgery, expertise matters far more than discounts.
Choosing the Right Thoracic Surgeon in Delhi for Segmentectomy surgery in India
Segmentectomy is one of the most technically demanding procedures in modern thoracic surgery. It requires a surgeon who understands detailed pulmonary anatomy, cancer biology, lymph node staging, and minimally invasive surgical techniques.
When choosing a thoracic surgeon, patients should consider:
- Dedicated thoracic surgery practice
- Experience with VATS and robotic surgery
- Volume of lung cancer surgeries performed
- Availability of multidisciplinary cancer care
- Access to advanced imaging and pathology support
- Transparent discussion regarding surgical options
In New Delhi, patients seeking evaluation for lung nodules, early-stage lung cancer, segmentectomy, lobectomy, robotic thoracic surgery, or minimally invasive lung surgery can consult experienced thoracic surgeons such as Dr. Kamran Ali. A dedicated thoracic surgery assessment helps determine whether a patient is best treated with segmentectomy, lobectomy, or another lung-preserving strategy.
Conclusion
Segmentectomy represents one of the most significant advances in modern lung cancer surgery. For carefully selected patients with small, peripheral, node-negative lung cancers, it offers the possibility of achieving excellent cancer control while preserving valuable lung tissue. Recent international evidence and guideline updates have strengthened its role in thoracic oncology, transforming it from a niche procedure into a mainstream treatment option for selected patients. (MDPI)
India is increasingly at the forefront of this evolution, with advanced thoracic centers offering VATS and robotic segmentectomy using globally accepted standards. For patients diagnosed with an early lung cancer or suspicious lung nodule, consultation with an experienced thoracic surgeon is essential to determine whether segmentectomy is the right choice. However Segmentectomy surgery in India is still performed by a handful of thoracic surgeons like Dr Kamran Ali, so chose your surgeon after careful research.
Frequently Asked Questions
1. Is segmentectomy better than lobectomy?
Not always. For carefully selected small peripheral lung cancers, segmentectomy can provide outcomes comparable to lobectomy while preserving more lung tissue. Larger or more complex tumors may still require lobectomy.
2. How long does segmentectomy surgery take?
Most procedures take between 2 and 4 hours, depending on tumor location, anatomy, and surgical complexity.
3. Is Segmentectomy surgery in India performed using keyhole surgery?
Yes. Most modern segmentectomies are performed using VATS or robotic-assisted techniques, which involve small incisions and faster recovery.
4. How long is the hospital stay after Segmentectomy surgery in India ?
Most patients stay in the hospital for approximately 3–5 days following minimally invasive surgery, although this varies depending on recovery and underlying health conditions.
5. Can segmentectomy cure lung cancer?
For appropriately selected patients with early-stage lung cancer, segmentectomy can be a curative treatment when combined with proper lymph node assessment and long-term follow-up.
