Medical Oncologist
CION Cancer Clinics
Minimally invasive surgery: who is not suitable? | CION Cancer Clinics
Keyhole surgery may not suit you if the tumour is large or has grown into nearby organs, if earlier operations left a lot of scar tissue, or if your heart or lungs would struggle with the gas and positioning the operation needs. Age and weight alone rarely decide it. Your surgeon and anaesthetist weigh these together, and this page explains what they look at and what to ask. CION Cancer Clinics’ surgical oncologists in Hyderabad can talk this through with you.
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Medically reviewed by Dr. Muralidhar MuddusettyConsultant Surgical Oncologist · MBBS (AIIMS), MS (Surgery, AIIMS), DNB (Surgical Oncology), MRCS (Edinburgh) · last reviewed September 2026, next review due September 2027
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On this page
- Who cannot have keyhole cancer surgery?
- What most often rules keyhole surgery out?
- What gets wrongly assumed about who can have keyhole surgery?
- How does the team decide whether keyhole is safe for you?
- What happens if a keyhole operation has to become open?
- What do the words on your notes mean?
- What can this page not tell you?
- Common questions about who can have keyhole surgery
The short answer
Who cannot have keyhole cancer surgery?
Keyhole surgery may not suit you if the tumour is large or has grown into nearby organs, if earlier operations have left a lot of scar tissue, or if your heart or lungs would struggle with the way the operation is done. Your surgeon and anaesthetist decide this together, case by case.
What keyhole surgery asks of the body
In most tummy and pelvic operations, the belly is gently filled with gas so the surgeon can see and work. You may be tilted head-down or on your side for a long time. The operation is often longer than the open version. Most people cope well, but these conditions put extra strain on the heart and lungs.
What keyhole surgery asks of the cancer
The tumour has to be reachable and removable whole through small cuts, with a clear rim of normal tissue around it. If it is bulky, stuck to important structures or spread widely inside the belly, open surgery often gives the surgeon the view and control the operation needs.
Being told keyhole surgery is not suitable is not a verdict on how serious your cancer is. It is a judgement about the safest way to do one operation.The usual reasons
What most often rules keyhole surgery out?
Rarely one thing on its own. Usually the team weighs several of these together.
The size or spread of the tumour
A large tumour, or one grown into the bowel, bladder or big blood vessels, may need open surgery to remove it safely and in one piece.
Scar tissue from earlier surgery
Previous operations can glue organs together. Separating them through small cuts can be slow and risky, so an open approach may be wiser.
Heart and lung problems
The gas in the belly and long tilted positions can be hard on a weak heart or damaged lungs.
The anaesthetist looks at
- Heart function and rhythm
- Lung capacity and breathlessness on effort
An emergency operation
A badly swollen, blocked bowel or heavy bleeding leaves little room to work through small cuts. Emergency cancer surgery is more often open.
Bleeding problems
A clotting disorder, or blood thinners that cannot be safely paused, can make any surgery harder. Your doctors plan this together.
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Ask an oncologistCommonly believed
What gets wrongly assumed about who can have keyhole surgery?
"He is overweight, so keyhole is out of the question."
Weight alone rarely rules it out. Small cuts can actually help heavier patients, whose large open wounds heal more slowly. Very high weight can make the operation harder, and your surgeon will say if it does.
"She is too old for keyhole surgery."
Age by itself is not the test. Fitness is. A fit older person may do very well, while a younger person with serious heart or lung disease may not. The anaesthetist's assessment decides this.
"Offering open surgery means the surgeon is less skilled."
Choosing open surgery for a tumour that needs it is a sign of good judgement. Forcing a keyhole approach where it does not fit can make the operation less safe.
"If they had to open up, something went badly wrong."
Changing to open surgery is a planned possibility in every keyhole operation. It is usually a careful decision made because it is safer at that moment.
Behind the decision
How does the team decide whether keyhole is safe for you?
Reading the scans
The surgeon studies your CT, MRI or PET-CT to see how big the tumour is, what it touches and whether it has spread inside the belly.
Checking your fitness
The anaesthetist reviews your heart, lungs, medicines and past operations. Extra tests may be ordered if anything needs a closer look.
Discussing it together
Many centres review cancer operations at a tumour board, where surgeons, oncologists and radiologists agree the plan together.
Explaining it to you
You hear which approach is planned, why, and what would make the surgeon change to open surgery. This is part of your consent.
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If plans change
What happens if a keyhole operation has to become open?
Sometimes a person who seemed suitable turns out not to be, and this only becomes clear once the operation begins. The surgeon then makes a larger cut and finishes the operation open. This is called conversion.
Why it happens
The common reasons are more scar tissue than the scans showed, bleeding that is easier to control with a direct view, a tumour larger or more stuck than expected, or the body not coping with the gas. None of these is unusual, and none reflects a mistake on its own.
What it means for you
Recovery will be more like recovery after open surgery. The wound is larger, pain relief may be needed for longer and the stay may be longer. The goal of the operation, removing the cancer, stays the same.
What to ask beforehand
Ask how likely conversion is in your case, what would lead to it, and whether your consent form covers it. Families find it much easier to hear the news after surgery when it was discussed before.
On your notes
What do the words on your notes mean?
- Minimally invasive surgery
- Any operation through small cuts instead of one large cut. Keyhole and robotic surgery both count.
- Laparoscopic
- Keyhole surgery inside the tummy, using a thin camera and long instruments.
- Adhesions
- Bands of scar tissue inside the body, often left by earlier surgery or infection, that stick organs together.
- Pneumoperitoneum
- Filling the belly with gas during keyhole surgery so the surgeon has room to see and work.
- Fitness for surgery
- The anaesthetist's view of how well your heart, lungs and body will cope with the operation and recovery.
Being straight with you
What can this page not tell you?
This page cannot tell you whether keyhole surgery suits you. That depends on your scans, your fitness and the exact operation, and only the team treating you can weigh all three.
If you were told keyhole is not possible
Ask the surgeon which reason applies to you, in plain words. Ask whether anything could change that, such as treatment before surgery to shrink the tumour. If you are still unsure, a second opinion from another surgical oncologist is reasonable and common.
If you were offered keyhole and are worried
Ask how often the team does this operation this way, and what would make them change to open surgery. Ask what recovery looks like either way, so you can plan help at home.
Questions we are asked
Common questions about who can have keyhole surgery
Can I have keyhole surgery if I have had operations before?
Often yes. Many people with a caesarean section, appendix removal or hernia repair in the past still have keyhole surgery. Several large operations, or ones that caused infection, leave more scar tissue and make it harder. Tell your surgeon about every operation you have had, even very old ones.
Does diabetes or high blood pressure rule it out?
Usually not, if they are reasonably controlled. The anaesthetist will check your sugar levels, blood pressure, kidneys and heart before surgery. Keep taking your usual medicines unless your doctors tell you otherwise, and bring the full list of medicines to the assessment.
Is keyhole surgery possible for a large tumour?
Sometimes. It depends on where the tumour is, what it touches and whether it can come out whole. In some cancers, treatment before surgery shrinks the tumour enough to change the approach. Your surgeon will explain what the scans show and why they chose the approach they did.
I have asthma. Can I still have keyhole surgery?
Most people with well controlled asthma can. The anaesthetist will ask how often you use your inhaler and whether you have needed hospital care for it. Bring your inhalers on the day. More severe lung disease needs a careful assessment first.
Why did one surgeon say keyhole and another say open?
Surgeons can reasonably differ, especially in borderline cases. Experience with a particular approach plays a part. Ask each one to explain their reasoning. If the views still differ, your treating team or a tumour board can help you understand which factors matter most in your case.
Is open surgery more dangerous than keyhole surgery?
Not in itself. Open surgery usually means more wound pain and a slower start to recovery. For the right patient, though, it can be the safer way to remove the cancer. The risks of any operation depend mostly on what is removed and on your general health.
Can the decision change after more tests?
Yes. New scan findings, better control of a heart or lung condition, or treatment that shrinks the tumour can all change the plan. It can also change the other way. Ask your team to tell you if anything shifts before the date of surgery.
Will I know before surgery if conversion is likely?
Your surgeon can usually tell you whether your risk is low or higher than usual, based on your scans and history. Nobody can say for certain until the operation starts. Ask for this to be discussed and written into your consent so your family knows what to expect.
Meet the Specialists
17+ senior cancer specialists. One panel for your case.
Trained at AIIMS, Tata Memorial, and leading international centres. Combined 150+ years of experience. Every complex case is reviewed by 3+ of them — together.
Medical Oncologist
Dr. C. Raghavendra Reddy
MBBS(Gold Medal), DNB(General Medicine), DM(Medical Oncology)(Gold Medal)
Medical Oncologist
Dr. Bharati Devi Gorantla
MBBS, MD(General Medicine), DM(Medical Oncology)(Adyar,Chennai), ECMO, MRCP SCE(UK)
Medical Oncologist
Dr. Owais Mohammed
MBBS, MD (General Medicine), DrNB (Medical Oncology), ECMO, MRCP SCE (Medical Oncology) (UK)
Medical Oncologist
Medical Oncologist
Surgical Oncologist
Dr. Muralidhar Muddusetty
MBBS (AIIMS), MS (Surgery) (AIIMS), DNB (Surgical Oncology), MRCS (Edinburgh)
Surgical Oncologist
Surgical Oncologist
Surgical Oncologist
Dr. Vinay Mamidala
MBBS, MS(General Surgery), M.Ch(Surgical Oncology), FMAS, FARIS(Ongoing)
Surgical Oncologist
Radiation Oncologist
Radiation Oncologist
Radiation Oncologist
Hematologist
Surgical Oncologist
Dr. Vajja Sandeep Kumar
MBBS, MS (General Surgery), DrNB (Surgical Oncology), FALS Oncology
Surgical Oncologist
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Sources
- NHS — Laparoscopy (keyhole surgery)
- National Cancer Institute — Surgery to Treat Cancer
- Cancer Research UK — Surgery for cancer
- Macmillan Cancer Support — Surgery
This page is general information, not a prescription. Do not change or stop any treatment based on what you read here. If anything is worrying you, contact your own treating team — or call our helpline and we will help you reach the right specialist.
Keep reading
Related pages
Open, Laparoscopic or Robotic: What Actually DiffersHow the three approaches compareFitness, Tests and PrehabilitationThe checks that decide whether you are fit for surgeryGetting a Second Opinion Before Cancer SurgeryIf you want another surgeon's viewIs Robotic Surgery Better?Where robotic surgery helps and where it does not
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Told keyhole surgery is not an option?
Tell us what has been found so far and the operation you have been offered. We will help you reach the right surgical oncologist to talk it through.