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  From the Desk of Editor–in–Chief
Dr KK Aggarwal

Padma Shri and Dr B C Roy National Awardee
Dr KK Aggarwal
President, Heart Care Foundation of India; Sr Consultant Physician, Cardiologist and Dean Medical Education Moolchand Medcity; Chairman Ethical Committee Delhi Medical Council; Chairman (Delhi Chapter) International Medical Sciences Academy; Hony Director IMA AKN Sinha Institute (08–09); Hony Finance Secretary National IMA (07–08); Chairman IMA Academy of Medical Specialties (06–07); President Delhi Medical Association (05–06), President IMA New Delhi Branch (94–95, 02–04); Editor in Chief IJCP Group of Publications & Hony. Visiting Professor (Clinical Research) DIPSAR


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eMedinewS Presents Audio News of the Day

Photos and Videos of 3rd eMedinewS – RevisitinG 2011 on 22nd January 2012

Photos of Workshop on Stress Management and How to be Happy and Healthy

  Editorial …

6th May 2012, Sunday

Light from laptops, TVs, electronics, and energy-efficient light bulbs may harm health

Light at night is bad for your health, and exposure to blue light emitted by electronics and energy–efficient light bulbs may be especially so.

Until the advent of artificial lighting, the sun was the major source of lighting, and people spent their evenings in (relative) darkness. Now, in much of the world, evenings are illuminated, and we take our easy access to all those lumens pretty much for granted. But we may be paying a price for basking in all that light. The May Harvard Health Letter talks about how this aspect of modern life may be great for efficiency, but not for health.

At night, light throws the body’s biological clock—the circadian rhythm—out of whack. Sleep suffers. Research shows that it may contribute to the causation of cancer, diabetes, heart disease, and obesity.

But not all colors of light have the same effect.

  • Blue wavelengths—which are beneficial during daylight hours because they boost attention, reaction times and mood—seem to be the most disruptive at night. And the proliferation of electronics with screens, as well as energy–efficient lighting, is increasing our exposure to blue wavelengths, especially after sundown.
  • While light of any kind can suppress the secretion of melatonin, blue light does so more powerfully.
  • In an experiment, researchers exposed people to 6.5 hours of light—either blue or green. The blue light suppressed melatonin for about twice as long as the green light and shifted circadian rhythms by twice as much.
  • While fluorescent light bulbs and LED lights are much more energy–efficient than incandescent lights, they also tend to produce more blue light.
  • Proliferation of electronic devices with screens, as well as energy–efficient lighting, is increasing exposure to blue wavelengths, especially after sundown.

Daily rhythms influenced by light

Everyone has slightly different circadian rhythms, but the average length is 24 and one–quarter hours. The circadian rhythm of people who stay up late is slightly longer, while the rhythms of earlier birds fall short of 24 hours. Dr. Charles Czeisler of Harvard Medical School showed, in 1981, that daylight keeps a person’s internal clock aligned with the environment.

The health risks

Study after study has linked working the night shift and exposure to light at night to several types of cancers (breast, prostate), diabetes, heart disease and obesity. It’s not exactly clear why nighttime light exposure seems to be so bad for us. But we do know that exposure to light suppresses the secretion of melatonin, a hormone that influences circadian rhythms, and there is some experimental evidence (it’s very preliminary) that lower melatonin levels might explain the association with cancer.

A Harvard study shed a little bit of light on the possible connection to diabetes and possibly obesity. The researchers put 10 people on a schedule that gradually shifted the timing of their circadian rhythms. Their blood sugar levels increased, throwing them into a prediabetic state, and levels of leptin, a hormone that leaves people feeling full after a meal, went down. Even dim light can interfere with a person’s circadian rhythm and melatonin secretion. A mere eight lux—a level of brightness exceeded by most table lamps and about twice that of a night light—has an effect, notes Stephen Lockley, a Harvard sleep researcher. Light at night is part of the reason so many people don’t get enough sleep, says Lockley, and researchers have linked short sleep to increased risk for depression, as well as diabetes and cardiovascular problems.

The power of the blues

While light of any kind can suppress the secretion of melatonin, blue light does so more powerfully. Harvard researchers and their colleagues conducted an experiment comparing the effects of 6.5 hours of exposure to blue light to exposure to green light of comparable brightness. The blue light suppressed melatonin for about twice as long as the green light and shifted circadian rhythms by twice as much (3 hours vs. 1.5 hours).

In another study of blue light, researchers at the University of Toronto compared the melatonin levels of people exposed to bright indoor light who were wearing blue–light–blocking goggles to people exposed to regular dim light without wearing goggles. The fact that the levels of the hormone were about the same in the two groups strengthens the hypothesis that blue light is a potent suppressor of melatonin. It also suggests that shift workers and night owls could perhaps protect themselves if they wore eyewear that blocks blue light. Inexpensive sunglasses with orange–tinted lenses block blue light, but they also block other colors, so they're not suitable for use indoors at night. Glasses that block out only blue light can cost up to $80.

Less–blue light

If blue light does have adverse health effects, then environmental concerns, and the quest for energy–efficient lighting, could be at odds with personal health. Those curlicue compact fluorescent light bulbs and LED lights are much more energy–efficient than the old–fashioned incandescent light bulbs we grew up with. But they also tend to produce more blue light. The physics of fluorescent lights cannot be changed, but coatings inside the bulbs can be so they produce a warmer, less blue light. LED lights are more efficient than fluorescent lights, but they also produce a fair amount of light in the blue spectrum. Richard Hansler, a light researcher at John Carroll University in Cleveland, notes that ordinary incandescent lights also produce some blue light, although less than most fluorescent light bulbs.

What can you do?

  • Use dim red lights for nightlights. Red light has the least power to shift circadian rhythm and suppress melatonin.
  • Avoid looking at brightly lit screens beginning two to three hours before bed.
  • If you work a night shift or use a lot of electronic devices at night, consider wearing blue–blocking glasses.
  • Expose yourself to lots of bright light during the day, which will boost your ability to sleep at night, as well as your mood and alertness during daylight.

For More editorials…

Dr KK Aggarwal
Group Editor in Chief

  eMedinewS Audio PostCard

Stay Tuned with Padma Shri and Dr B C Roy National Awardee Dr KK Aggarwal on

Light from laptops, TVs, electronics, and energy-efficient light bulbs may harm health

Audio PostCard
    Photo Feature (from the HCFI Photo Gallery)

World Earth Day organized at DPS Mathura Road

Students of Delhi Public School, Mathura Road presented a beautiful skit, on the occasion of World Earth Day. The event was organized by Heart Care Foundation of India, DPS Mathura Road and Ministry of Earth and Sciences.

Dr K K Aggarwal
    National News

Workshops with Dr KK Aggarwal

Dr KK Study Circle in association with board of Medical education

You all are cordially invited to join the worksopn on 6th May 2012, Sunday, 8 AM to 10 AM at Moolchand Medcity Auditorium

Topic: Hypertension What’s New and Common Seasonal Disorders

Kindly confirm your registration to Rekha Papola, 9899974439 email @ rekhapapola@gmail.com

Medical Council of India’s entrance test stayed

BANGALORE: The Karnataka High Court on Friday stayed the notification of the Medical Council of India prescribing conduct of the National Eligibility–cum–Entrance Test for medical under–graduate and post–graduate seats for the country in all government and private unaided medical colleges. Vacation judge Justice K Bhakthavatsala passed the order after hearing a petition filed by Karnataka Private Medical and Dental Colleges’ Association and others.

They had challenged the Feb. 15, 2012 notification. "The move to conduct a single NEET is impracticable and is highly cumbersome. Already, the process of CET conducted at the state level takes at least two months before students attend classes. A single test at the national level may prove an ever–lasting process," the petitioner claimed. They also claimed that the association may enter into an agreement with the government for the 2012–13 academic year and NEET will affect it. On November 21, 2011, the high court stayed a similar notification based on the December 27, 2010 notification issued by the central government .The petitioner association in this case along with Karnataka Religious and Linguistic Minorities Professional Colleges Association (KRLMPCA) had challenged that notification. That petition is still pending. (Source: TOI, May 5, 2012)

For comments and archives

Watch ‘Transit of Venus’ on June 6 in India

New Delhi: A rare astronomical event will occur on June 5 and 6 when planet Venus will pass directly between the earth and the sun, appearing as a small dot travelling across the disk of the sun. The planetary alignment called the ‘Transit of Venus’ will occur during a 6–hour time period and will not happen again until 2117. Only six such events have occurred since the invention of the telescope in 1631, 1639, 1761, 1769, 1874, 1882 and 2004. Residents of Delhi will have to wake up early on June 6 to witness the once–in–a–lifetime–event– the transition will begin at 3.39 am and continue till 10.22 am according to local time. NASA suggests watchers to find a clear eastern horizon to witness the event clearly. Meanwhile, residents of North America will be able to watch the event during sunset on June 5. (Source:

For comments and archives

Certificate courses in 2D and 3D Echocardiography/Fellowship Diploma in non invasive cardiology: Contact Dr KK Aggarwal, Moolchand Medcity, email: emedinews@gmail.com

    International News

(Contributed by Dr Monica and Brahm Vasudev)

Lower MI death risk linked to five strategies

A five–pack of hospital strategies is associated with a reduced risk of death for patients who’ve had a myocardial infarction, researchers found. In a multivariate analysis, five strategies were significantly associated with lower mortality and, taken together, were associated with "clinically important" differences in the 30–day risk–standardized mortality rates. Specifically: (Source: Medpage Today)

  • Holding monthly meetings between hospital clinicians and staff who transported patients to the hospital to review cases was associated with a 0.70 percentage point decrease in the standardized mortality rate.
  • Having cardiologists always on site lowered the rate by 0.54 percentage points.
  • Encouraging clinicians to solve problems creatively lowered the rate by 0.84 percentage points.
  • Avoiding cross–training nurses from intensive care units for the cardiac catheterization laboratory lowered it by 0.44 percentage points.
  • Having physician and nurse champions rather than nurse champions alone lowered it by 0.88 percentage points.

For comments and archives

New Combo Allergy Drug Approved by FDA

The US Food and Drug Administration (FDA) approved a new combination drug for seasonal allergies on Tuesday that spares patients from having to take its 2 components separately. Dymista (Meda Pharmaceuticals) nasal spray combines fluticasone propionate (Flonase, GlaxoSmithKline) and azelastine hydrochloride (Astepro, Astelin, Meda Pharmaceuticals). It is indicated for patients 12 years of age and older with seasonal allergic rhinitis (SAR) who require both drugs for symptom relief. (Source: Medscape)

For comments and archives

CT scans bolster abdominal ultrasound findings

Computed tomography (CT) scans after inconclusive abdominal ultrasounds have a diagnostic yield of about one third, according to research presented at the American Roentgen Ray Society 2012 Annual Meeting. (Source: Medscape)

For comments and archives

Cardiovascular Risk From NSAIDs

After nearly 13 years of study and intense debate, a pair of new papers from the Perelman School of Medicine, at the University of Pennsylvania have confirmed exactly how a once–popular class of anti–inflammatory drugs leads to cardiovascular risk for people taking it.

COX–2 is one of two similar enzymes that churn out short–lived fats called prostaglandins. The other, COX–1, works in platelets – cells in the blood that stick together in the first stages of clotting. COX–2 is active in the cells that line blood vessels. These enzymes have diverse, potent, and often contrasting effects in the body. For example, low–dose aspirin protects against heart attacks and strokes by blocking COX–1 from forming a prostaglandin called thromboxane A2 in platelets. On the other hand, COX–2 is the more important source of prostaglandins, particularly one called prostocyclin, which causes pain and inflammation.

For comments and archives

    Twitter of the Day

@DrKKAggarwal: New Drug for ED A new PDE–5 inhibitor avanafil (Stendra) is now FDA approved.

@DeepakChopra: When you learn to appreciate and express your unique perception of the world, You let go of the need for approval.

    Spiritual Update

(Dr KK Aggarwal, Group Editor in Chief, IJCP Group of Publications and eMedinews)

Prakriti, Vikriti and Sanskriti

Prakiti is defined as when a person lives for himself or when his actions are centered towards oneself. Sanskriti is when one lives for the sake of others and vikriti is nothing but distortion in one’s living.

For comments and archives

    Infertility Update

(Dr Kaberi Banerjee, IVF expert, New Delhi)

Will endometrial ablation makes periods lighter?

About 9 of 10 women have lighter periods or no period after endometrial ablation. These improvements may not last forever, though. Your periods may get heavier and longer after several years. If this happens, you may need to have your uterus taken out. This procedure is called a hysterectomy.

For comments and archives

    Tat Tvam Asi………and the Life Continues……

(Dr N K Bhatia, Medical Director, Mission Jan Jagriti Blood Bank)

Blood products

  • Safe blood products, used correctly, can be life saving. However, even where quality standards are very high, transfusion carries some risks. If standards are poor or inconsistent, transfusion may be extremely risky.
  • No blood or blood product should be administered unless all nationally required tests have been carried out.
  • Each unit should be tested and labeled as regards the ABO and RhD group.
  • Whole blood can be transfused to replace red cells in acute bleeding when there is also a need to correct hypovolemia.

For comments and archives

    An Inspirational Story

(Ms Ritu Sinha)

A scorpion moment

There was a man who saw a scorpion floundering around in the water. He decided to save it by stretching out his finger, but the scorpion stung him. The man still tried to get the scorpion out of the water, but the scorpion stung him again.

A man nearby told him to stop saving the scorpion that kept stinging him.

But this man said: "It is the nature of the scorpion to sting. It is my nature to love. Why should I give up my nature to love just because it is the nature of the scorpion to sting?"

Don’t give up loving. Don’t give up your goodness, even if people around you sting.

For comments and archives

    Cardiology eMedinewS

Evidence Grows For Effects of Fat on Heart Read More

Shrinking The Heart To Fight Cardiac Failure Read More

CHA2DS2–VASc Score Gives Best Prediction Of Stroke Risk In AF
Read More

    Pediatric eMedinewS

Wider Palatal Clefts Add To Risk Of Postop Velopharyngeal Insufficiency Read More

Two Drugs Better Than 1 For Children With Diabetes Read More

Endovascular Stents Help Some Babies with Hypoplastic Left Heart Syndrome Read More

    IJCP Special

Dr Good Dr Bad

Situation: A patient with knee osteoarthritis was put on statins.
Dr. Bad: They have no role.
Dr. Good: One can try that.
Lesson: Statin use was found to be associated with more than a 50% reduction in overall progression of osteoarthritis of the knee in the Rotterdam study, but not of the hip (Ann Rheum Dis 2012 May;71(5):642–7).

For comments and archives

Make Sure

Situation: A patient on amlodipine developed severe gum hypertrophy.
Reaction: Oh my God! Why was amlodipine not stopped?
Lesson: Make sure that all patients on amlodipine are observed for gum hypertrophy. Gingival hyperplasia is a known side effect of amlodipine.

For comments and archives

    Legal Question of the day

(Prof. M C Gupta Advocate & Medico–legal Consultant)

Q. A doctor wants to go abroad for specialised training not available in India. The government places a restriction upon his going abroad. Does it offend the right to liberty?


  1. Any citizen has a right to visit abroad. Impounding somebody’s passport or refusing to issue passport without reason would attract Article 21 which ensures life and liberty.
  2. Placing restriction upon a doctor from going abroad for specialised training not available in India may be legally valid if the restriction is in accordance with law.

For comments and archives

    Quote of the Day

(Dr Sanchita Sharma)

Every test in our life makes us bitter or better,
Every problem comes to make us or break us,
Choice is our whether we become victim or victorious !!!!

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    Rabies Update

(Dr AK Gupta, Author of Rabies the Worst Death)

How common are animal bites and infections?

Dog bite wounds have poor healing and carry high risk of infection with anaerobic organisms. Cat bites have the greatest potential for suppurative infection with Pasteurella multocida being the most common organism. Only 15–20% of dog bite wounds become infected. Crush injuries puncture wounds and hand wounds are more likely to become infected than scratches or tears. Most infected dog bite wounds yield polymicrobial organisms. P. multocida and Staphylococcus aureus are the most common aerobic organisms.

For comments and archives

    Lab Update

(Dr Arpan Gandhi and Dr Navin Dang)

Reticulocyte indices

With the advent of automated counting of reticulocytes, several reticulocyte parameters are available to clinicians and pathologists. These include reticulocyte volume, reticulocyte hemoglobin content, and reticulocyte hemoglobin concentration.

    Mind Teaser

Read this…………………

Marco, who was diagnosed with brain tumor was scheduled for craniotomy. In preventing the development of cerebral edema after surgery, the nurse should expect the use of:

a. Diuretics
b. Antihypertensive
c. Steroids
d. Anticonvulsants

Yesterday’s Mind Teaser: How many cups of fruit and vegetables should you eat daily?

A. At least one cup of fruit or vegetables.
B. One cup of fruit and one cup of vegetables.
C. One cup of fruit and 1 1/2 cups of vegetables, for a total of 2 1/2 cups.
D. Two cups of fruit and two cups of vegetables.
E. Four to five cups of fruit and vegetables.

Answer for Yesterday’s Mind Teaser: E. Four to five cups of fruit and vegetables.

Correct answers received from: Dr Rajammal, Bal Kishan Agarwal, Prabha Sanghi, Rajiv Kohli, Raju Kuppusamy, Muthumperumal Thirumalpillai, Dr S K Verma, Dr Jainendra Upadhyay.

Answer for 4th May Mind Teaser: Crimson
Correct answers received from: Dr S K VERMA, Sudipto Samaddar.

Send your answer to ijcp12@gmail.com

   Laugh a While

(Dr GM Singh)

New evening classes for men!!!

Starting this month! All are welcome! Open to men only!

Note: due to the complexity and level of difficulty of their contents, each course will accept a maximum of eight participants each.

Topic 1. How to fill ice–cube trays. Step by step with slide presentation.
Topic 2. Toilet paper rolls: do they grow on the holders? Round–table discussion.
Topic 3. Differences between the laundry basket and the floor. Pictures and explanatory graphics.
Topic 4. The after–dinner dishes and silverware: can they levitate and fly into the kitchen sink? Examples on video.
Topic 5. Loss of identity: losing control of the TV remote…Helpline and support groups.
Topic 6. Learning how to find things, starting with looking in the right place instead of turning the house upside down while screaming. Open forum.

    Medicolegal Update

(Dr Sudhir Gupta, Additional Prof, Forensic Medicine & Toxicology, AIIMS)

What is cannabis poisoning?

Cannabis, also known as marijuana, Indian hemp, hashish, ganja, pot, dope and grass, is made from the Indian hemp plant, Cannabis sativa. Cannabis is often abused and, in some countries it is used almost as much as alcohol or tobacco.

Cannabis harms the brain; however. it does not cause much harm to adults, unless it is injected. The signs and symptoms start within 10 minutes of smoking the drug and last for about 2–3 hours. When taken orally, the effects start to appear within 30-60 minutes and last for 2–5 hours. The major effects are a feeling of well–being, happiness and sleepiness; high doses may cause fear, panic and confusion, impaired balance, hallucinations, drowsiness, slurred speech, coughing if the drug is breathed in, as when smoking cigarettes. If the drug is injected it may cause more serious problems such as severe headache, dizziness, irregular breathing, fever, low blood pressure, unconsciousness.

  • If the patient is unconscious or drowsy, lay him or her on one side in the recovery position. Check breathing every 10 min. A patient who is anxious or confused should be kept in a quiet, warm room. If the cannabis was swallowed: there is no need to make the patient vomit.
  • If the patient is fully awake, breathing normally, and not vomiting: Give activated charcoal and water to drink.
  • If the patient is hallucinating or violent: Give chlorpromazine, 50–100 mg (adult dose), intramuscularly.
  • If cannabis has been injected: Monitor breathing, pulse, blood pressure, temperature. Supportive care, including oxygen and mechanical ventilation, should be given as needed. If low BP, keep the patient lying with the feet higher than the head; intravenous fluids can be given.

For comments and archives

    Public Forum

(Press Release for use by the newspapers)

Pre meal soups are weight–friendly

Having a bowl of low–calorie soup prior to a meal can cut the total mealtime intake of amount of food and calories said Padma Shri and Dr B C Roy National Awardee Dr KK Aggarwal, President Heart Care Foundation of India.

According to researchers from Penn State, diners who were given, low–calorie soup made of broccoli, potato, cauliflower, chicken broth, carrots to volunteers before they ate lunch, consumed 20 percent fewer calories.

The NIH study showed that all versions of soup recipes – separate broth and vegetables, chunky vegetable soup, chunky–pureed vegetable soup, and pureed vegetable soup proved equally filling.

Consuming a first–course of low–calorie soup, in a variety of forms, can help with managing weight. Using this strategy allows people to get an extra course at the meal, while eating fewer total calories.

One should take only low–calorie, broth–based soups that are about 100 to 150 calories per serving and not higher–calorie, cream–based soups.

    Readers Responses
  1. I really enjoy the contents.Kindly keep sending the emednews. Dr KP MIshra
    Forthcoming Events
Dr K K Aggarwal

Dr K K Aggarwal

Dil Ka Darbar

September 23, 2012 at 9:00 AM – 6:00 PM
Tal Katora Indoor Stadium, Connaught Place, New Delhi, 110001

A non stop question answer session between all the top cardiologists of the NCR region and the mass public. Event will be promoted through hoardings, our publications and the press. Public health discussions

    eMedinewS Special

1. IJCP’s ejournals (This may take a few minutes to open)

2. eMedinewS audio PPT (This may take a few minutes to download)

3. eMedinewS audio lectures (This may take a few minutes to open)

4. eMedinewS ebooks (This may take a few minutes to open)

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  Playing Cards

  Dadi Ma ke Nuskhe

  Personal Cleanliness

  Mental Diseases

  Perfect Health Mela

  FAQs Good Eating

  Towards Well Being

  First Aid Basics

  Dil Ki Batein

  How to Use

  Pesticides Safely

    Our Contributors

Dr Veena Aggarwal, Dr Arpan Gandhi, Dr Aru Handa, Dr Ashish Verma, Dr A K Gupta, Dr Brahm Vasudev, Dr GM Singh, Dr Jitendra Ingole, Dr Kaberi Banerjee (banerjee.kaberi@gmail.com), Dr Monica Vasudev, Dr MC Gupta, Dr Neelam Mohan (drneelam@yahoo.com), Dr Navin Dang, Dr Pawan Gupta(drpawangupta2006@yahoo.com), Dr Parveen Bhatia, (bhatiaglobal@gmail.com), Dr Prabha Sanghi, Dr Prachi Garg, Rajat Bhatnagar (http://www.isfdistribution.com), Dr. Rajiv Parakh, Dr Sudhir Gupta, Dr Usha K Baveja