How can I prevent blood clots on the whites of my eyes after LASIK?

Earlier models of femtosecond lasers used in the creation of the LASIK flap grip the whites of the eye surrounding the cornea. This often leads to bruising in the same area which in the case of the eye appears bright red. Fortunately, these red patches do resolve in about 2 weeks without any serious long term complications. Newer generations of femtosecond lasers now apply suction to the cornea itself which does not have any blood vessels and as a result, the incidence of subconjunctival hemorrhage is much lower.

What are the chemotherapy regimens for relapsed leukemia?

There are different types of leukemias, and going into the treatment regime for each one is beyond the scope of this QnA. For example, there are 4 main types of leukemia alone: Acute myeloid leukemia (AML) Chronic myeloid leukemia (CML) Acute lymphocytic leukemia (ALL) Chronic lymphocytic leukemia (CLL) I’d advise speaking to an oncologist to discuss about your query, as he will be able to provide a much more helpful answer in the context of additional details.

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Human

What does it mean when your red blood cells are low?

Thank you for your question - an interesting one for sure! "Low red blood cells" might be mentioned if you have low iron or an actual drop in your red cell count. PThe former is certainly more common and it might be due to insufficient intake of iron, low production or increased breakdown. Suffice to say the various reasons are quite complicated and laying them down here might not help the situation, but I would suggest seeing a physician to get a baseline blood count and iron levels assessed. These can help identify what might going on and help your treatment.

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Dr Dinesh Sirisena

Sport Medicine

Am I more at risk of blood clots if I have a broken fifth metatarsal fracture and go on a long-haul flight?

Thank you for making contact and I can understand your concerns. It seems there are two issues here: Firstly your concerns about blood clots, or what is medically known as deep vein thrombosis. Immobilisation can be a risk factor, together with others including a previous history of clots, being on a combined oral contraceptive, various auto-immune conditions and also if you smoke. Then there are the flight factors such as being in a cramped cabin, drinking alcohol and the flight duration. Indeed, there are many!

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Dr Dinesh Sirisena

Sport Medicine

What could be the cause of blood clots on passing motion?

Seeing blood in the toilet, or with wiping after passing motion is common, especially when you are passing hard stools or constipated. Most of the causes of such bleeding are not life-threatening; common causes include hemorrhoids and anal fissures. However, the only way to be certain of the cause is to be evaluated with a proper history and examination by a doctor. This is especially so in light of your most recent problem of blood clots. You should definitely highlight it as soon as possible to the doctor whom you are seeing.

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Human

Which specialist should I consult for a high platelet count?

A high platelet count or thrombocytosis doesn't necessarily means you need to see a specialist. We need to see how high it is, whether there are other parameters which are also abnormal. Need to find out if you have any symptoms which may point to the possible cause. There is a long list of thrombocytosis like blood loss, iron deficiency, hemolytic anemiaI would suggest you see a GP first so that he can take a look at the full results, ask you further questions, examine if required. He will then be able to decide on what is the next best course of action. You may or may not need a referral.

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Dr Muhd Taufiq

General Practitioner

What are the causes of a persistent blood clot on my lip that doesn't disappear?

It is difficult to ascertain what the persistent blood clot on the lip may be due to without a photo. However, conditions such as: Angiomas Haemangioma Port wine stains Can all contribute to a red area that is persistent and have little symptoms. In more serious cases, even skin cancers can present as a pink or red spot that is persistent and grows over time. It is best to seek medical advice early if you have a new, persistent, or changing skin lesion. Hope this helps.

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Answered By

Dr Stephanie Ho

Dermatologist

What factors affect life expectancy for someone who has had several transplants, such as removing the gall bladder and a liver transplant?

life expectancy post liver transplant is related to many factors. The most important factor is whether the problem which resulted in the transplant has been well under control or eradicated. This is especially true if the transplant was for underlying cancer or liver failure due to viral infection. Pre-exiting conditions not under control may result in graft failure while the preexisting disease may also affect one's life.

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Dr Wai Leong Quan

Gastroenterologist

What are stem cells and what is stem cell therapy? How useful is it in treating brain tumours?

Stem cells are a special type of cells that have the capacity to self-renew indefinitely and can give rise to multiple cell lineages. They are present throughout life and vary in their potential for further specialization. Some can give rise to all tissue types (pluripotent) while others are restricted to the cell types within one organ. The potential for these advanced cell therapies to completely change the treatment of diseases is immense. However, to date, the overall number of proven stem cell therapies remain small. They also require rigorous scientific and clinical evaluations.

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Answered By

Dr Nicolas Kon

Neurosurgeon

Where can I find mega vac treatment in Singapore?

Dear Sir,Thank you for your inquiry. There are many similar devices in use in Singapore. The one with the longest history in Singapore is the Angiojet system. We need to know which part of the body has the clot to give more precise advice. *Thanks & Best Regards,**Farah Aziz **Mount Elizabeth Novena Specialist Centre**38 Irrawaddy Road #07-52**Singapore 329563**Tel: (65) 6265 8561 **Fax: (65) 6734 1439 **H/P: (65) 8799 1964*http://veinandendovascularsurgery.

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Human

Is Platelet-rich Plasma therapy (PRP) safe while on Accutane?

Platelet-rich plasma is basically activating concentrated platelet cells to produce large amounts of growth factors. These are necessary for healing and regeneration and growth of tissue. In fact, platelet-rich plasma therapy (PRP) is popular overseas with facial skin texture and complexion rejuvenation. To answer your question, yes. It is safe while you are on Accutane as it is purely your own blood by-products. In addition, it stimulates healing and growth [1]. In fact, its effects may be even better as Accutane makes your skin more able to absorb the growth factors of PRP. 1.

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Human

As a thalassemia beta minor patient, what can I do or consume to reduce exhaustion?

As a beta thalassemia patient, your body is used to having a lower hemoglobin level compared to other people. So if you are feeling tired and exhausted, there could be other reasons, you should see a doctor to get it properly examined.

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Answered By

Dr Paul Ang

General Practitioner

How does Azacitidine help for Acute Myeloid Leukemia?

You need to ask these questions to your haematologist or oncologist, as they are beyond the scope of this QnA. AML is complicated in general, and the answer is never straight forward. For example, the correct treatment in your case may also depend on genetic and molecular sub-typing. Your haematologist will have access to all the necessary information and test results (which we do not possess), in order to give you the most appropriate advice to your questions.

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Human

What are the symptoms of leukemia?

Hi, leukemias are blood-related cancers that affect white blood cell and red blood cell production. There are a few different types of leukemias. The symptoms vary according to the type of leukemia you have. What generally happens is that because there are less white blood cells, your body becomes weaker at fighting infection. Lesser red blood cells means that your body is worse at transporting oxygen, which causes you to feel tired.

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Human

How much more effective is Pico laser over platelet-rich plasma therapy and micro-needling when treating rosacea?

Hi, Both are not recommended therapies for rosacea. A. The inflammatory component of rosacea is best treated with applications such as topical metronidazole, topical ivermectin, oral doxycycline and oral isotretinoin. B. The vascular component of rosacea is best treated with topical mirvaso, IPL and pulsed-dye laser. Pico-lasers are essentially pigment lasers but in the fractionated mode that can be used to treat acne scars and to stimulate the formation of neo-collagen. Microneedling is used primarily to treat acne scars and to stimulate neo-collagen formation.

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Answered By

Dr Chin Yee Choong

Aesthetic

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