Dengue Fever

Dengue Fever

Dengue is a viral infection that can lead to fever (Dengue fever syndrome) and can sometimes result in severe bleeding (Dengue Haemorrhagic Fever) and shock (Dengue Shock Syndrome).

The Aedes mosquito spreads the dengue virus. This mosquito bites humans during daytime and breeds in relatively clean water stored for drinking or washing purposes and in rainwater that collects in various containers (e.g. tyres, bottles, tanks, shallow wells, plastic bottles.)

People of all ages and both sexes who are exposed to mosquito bites can get this disease. Children usually have a milder disease than adults.

There are basically four ways in which a patient – with Dengue presents himself:

1. Mild uncharacteristic fever.

2. “Break-bone” fever characterized by chills, high fever, severe headache, rash spreading from trunk to extremities, muscle and joint pains preventing all movements lasting for nearly 5 days.

3. DHF or Dengue Hemorrhagic Fever abrupt onset, high continuous fever lasting for 2-7 days with bleeding patches under skin, nose bleeding, gum bleeding, blood vomit, black tarry stool, capillary leakage ( ascites and pleural effusion), low platelet count and around 20% rise in haemotocrit.

4. DSS or Dengue Shock Syndrome shows all the signs and symptoms of DHF with cold clammy skin, weak and rapid pulse, hypotension and narrow pulse pressure.

Treatment

There is no specific drug or vaccine available that acts against the Dengue virus. Management follows general principles: –

  • Bed-rest under a mosquito net.
  • Sponge for fever.
  • Paracetamol for pain and fever.

Avoid Asprin and other NSAIDs that can reduce platelet count and increase bleeding

Cheek vital signs, haematocrit, urine output for signs of dehydration and electrolyte imbalance. Rapid intravenous replacement of fluids and electrolytes to sustain patient till recovery occurs. Plasma or plasma colloid preparations should be given if the haematocrit remains elevated. Care should be taken to avoid over hydration and pulmonary oedema (should this occur, diuretics may be used) Benzodiazepines (eg. diazepam) may be given to calm patients. Platelets concentrate needs to be given in those with low platelet count.

The disease cannot be spread by direct contact. It spreads only via Aedes mosquito bite. The transmission route is ‘Man-Mosquito- Man’.

This spread of the disease can be achieved by protecting individuals from mosquito bite (sleeping under a mosquito net, using insect repellants) and by controlling the Aedes mosquito population in the area.

The anti mosquito measures include:

  • Reduce Aedes mosquito breeding ground by getting rid of water holding containers such as discarded tins, empty pots, broken bottles etc.
  • Destroy larvae by adding oil to water collected in small ponds etc.
  • Kill adult mosquitoes by spraying insecticides.

Difference between Dengue Fever complicated by bleeding from DHF

Dengue Fever with Bleeding

  • Bleeding from pre-existing lesion like peptic ulcer.
  • Ascites and Pleural Effusion not seen.
  • Liver usually not enlarged.
  • Haematocrit falls.
  • Leucopaenia (fall of WBC)
  • Mild fall in Platelets count (rarely less than 1,00,000/cumm.

DHF – Dengue Hemorrhagic Fever

  • Bleeding under skin and from all mucosal surfaces.
  • Ascites and pleural effusion seen.
  • Liver enlargement seen in 1-2 days.
  • Haematocrit rises by 20% or more.
  • Leucocytosis (rise in WBC count)
  • Severe fall in Platelets count (usually less than 1,00,000/ cumm.)

Herpes Zoster

Herpes Zoster

Herpes Zoster is caused by Varicella-zoster virus.
Varicella-zoster virus causes two distinct clinical entities: varicella, or chickenpox, and herpes zoster, or shingles. Herpes Zoster presents as a type of skin rash accompanied by severe nerve pain.

Herpes zoster disease, is the consequence of reactivation of latent VZV ( Varicella – zoster virus ) from the dorsal root ganglia. Herpes zoster occurs at all ages, but its incidence is highest (5 to 10 cases per 1000 persons) among individuals in the sixth through the eighth decades of life. It has been suggested that approximately 2 percent of patients with herpes zoster will develop a second episode of infection.

This disease is characterized by a one sided vesicular eruption on the line of a nerve and is associated with severe pain. The erythematous maculopapular rash changes rapidly into vesicular lesions. The onset of the disease starts usually with severe pain on the line of the nerve that is involved with the disease process. The eruption may remain few in number or may continue to form for 3 to 5 days. The total duration of disease is generally between 7 and 10 days; however, it may take as long as 2 to 4 weeks for the skin to return to normal.

The disease may appear practically any place in the body. It may appear on the face (very common), tongue, mouth, and eye. It’s commonly seen on the one side of the chest.

If vesicles appear in the ear canal,  patients lose their sense of taste in the anterior two-thirds of the tongue while developing one sided facial palsy.

Post Herpetic Neuralgia is the most common complication of this disease. It’s seen most in the elderly patients or in immuno-compromised patients. This is a very troublesome pain persisting after the resolution of the disease process.

Treatment
Acyclovir, 800 mg per day for 7 to 10 days. FamciclovirValacyclovir are also used for herpes zoster. Other supportive measures may also be needed to manage pain and to prevent secondary infection of the eruptions.

Involvement of the eye needs timely care by ophthalmologist. Eye involvement can be troublesome when cornea is involved.

 

 

 

 

Smallpox

Smallpox

Our world has been eradicated from Smallpox. The last case of endemic smallpox was reported in 1977 from Somalia. In 1980 the World Health Organization officially declared that smallpox had been eliminated worldwide as a result of a global vaccination and eradication program. The only known remaining samples of smallpox virus are two research laboratories – located in the United States and Russia.

Smallpox was a relatively less contagious disease whose transmission required close contact. Fever and macular rash appeared after an average incubation period of 12 days, with a progression to typical vesicular and pustular lesions over 1 to 2 weeks.

Clinical features

This disease is spread by inhalation of air droplets or aerosols. Twelve to 14 days after catching infection, the patient becomes febrile and has severe aching pains. Some 2 to 3 days later, a papular rash develops over the face and spreads to the extremities. The rash soon becomes vesicular and later, pustular. The patient remains febrile throughout the evolution of the rash and experiences considerable pain as the pustules grow and expand. Gradually, scabs form, which eventually separate, leaving pitted scars. In severe cases death usually occurs during the second week.

Before the eradication of the smallpox this disease was confused frequently with chickenpox mainly during the early stage.

The differentiating features are:

All smallpox lesions develop at the same pace and, on any part of the body, appear identical.

Chickenpox lesions are much more superficial and develop in crops. With chickenpox, scabs, vesicles, and pustules may be seen simultaneously on adjacent areas of skin. Moreover, the rash in chickenpox is more dense over the trunk which is reverse with smallpox. Chickenpox lesions are almost never found on the palms or soles.

In 5-10% of the patients the disease takes a malignant shape and the patients die in 5-7 days. There may be bleeding in the skin and other parts of the body especially the intestines.

Vaccination

The only protection against this disease is vaccination. Vaccination before exposure or within 2 to 3 days after exposure affords almost complete protection against disease. Vaccination as late as 4 to 5 days after exposure may protect against death. Because smallpox can only be transmitted from the time of the earliest appearance of rash, early detection of cases and prompt vaccination of all contacts is very important in the spread of this disease.

Smallpox vaccination is associated with some risk of adverse reactions. The two most serious are postvaccinal encephalitis and progressive vaccinia. Postvaccinal encephalitis may be fatal and those who survive may have residual neurological damage. Progressive vaccinia is seen in those with immunosuppression.

Before the eradication of smallpox, variola virus existed as two related strains: variola major (smallpox), with a case-mortality rate of 20 to 50 percent, and variola minor (alastrim), which caused a clinically milder form of smallpox with a mortality of less than 1 percent.

The vaccine against smallpox is made from vaccinia virus. Its origin is uncertain, but it was probably derived from cowpox virus, variola virus, or a hybrid of the two. Experience has proven the effectiveness of live vaccinia-virus vaccine. Percutaneous administration of vaccinia virus vaccine results in protective immune responses in more than 95 percent of primary vaccines. Formation of a pustule and scab at the site of inoculation is indicative of immunity. Because immunity wanes after 10 to 20 years, revaccination every 10 years is recommended for continued protection. Routine smallpox vaccination was discontinued in 1971 and has not been required for international travel since 1982. However, use of vaccinia viruses for use in vaccines against other infectious agents or as immunotherapy against malignant diseases has led to the recommendation that laboratory and health care employees working directly with vaccinia virus be considered for vaccination. Selected groups that may be exposed to poxviruses (e.g., some military personnel and individuals who work with animals) should also be vaccinated.
Researchers at the University of North Carolina say many people vaccinated against smallpox more than 35 years ago are still immune to the disease.The findings published in Thursday’s edition of the New England Journal of Medicine refute the widely-held belief by doctors that the vaccine lasts no more than 10 years.

Chickenpox

Chickenpox

Chickenpox 

Chickenpox, a extremely contagious infection, is usually a benign illness of childhood characterized by an exanthematous vesicular rash. Children between the ages of 5 and 9 are most commonly affected and account for 50 percent of all cases.

Clinically, chickenpox presents as a rash, low-grade fever, and malaise.

The skin lesions, the hallmark of the infection, include maculopapules, vesicles, and scabs in various stages of development. These lesions, which evolve from maculopapules to vesicles over hours to days, appear on the trunk and face and rapidly spread to involve other areas of the body. Most are small and have an erythematous base with a diameter of 5 to 10 mm. Successive crops of rash appear over a 2 to 4 day period. Lesions also can be found on the mucosa of the pharynx and or the vagina. Their severity varies from one individual to another. Some individuals have very few lesions, while others have as many as 2000. Younger children tend to have fewer vesicles than older individuals.

The most common infectious complication of chickenpox is secondary bacterial superinfection of the skin.

The most common extracutaneous site of involvement in children is the nervous system. Pneumonia is the most serious complication following chickenpox, developing more commonly in adults.

Other complications of chickenpox include myocarditis, corneal lesions, nephritis, arthritis, bleeding diatheses, acute glomerulonephritis, and hepatitis.

Chickenpox, is more severe in the immunocompromised than in the normal individual.

 

 

Smallpox

Cleft Lip & Palate

CLEFT LIP AND PALATE

Cleft Lip & Palate

It is a sad experience for any parent to find its newborn child to have a birth defect of Cleft Lip and Palate. It is not only the parents, but also close relatives and friends, who get alarmed about the nature and the cause of the defect and worry about future development of the child. In general, birth defects could either involve internal organs, the external parts separately or both in varying combinations. Usually defects involving internal organs of the body are detected late in childhood either due to their effects on the child’s growth or due to incompatibility with life and thus do not have an immediate significant psychological stress. But birth defects like Cleft Lip and Palate are obvious immediately after the birth and these can cause more psychological problems to parents. Fortunately, with the modern surgical techniques available today, most of the deformities of Cleft Lip & Palate could be reconstituted to a near normal appearance and function.

Which other types of defects can be corrected with plastic surgery ? 
The congenital defect coming under the scope of Plastic and Reconstructive surgery range from deformities of the External Ear, Facial Bones, Eyelids, Nose, Lips,

Cleft Lip before repair

Palate, Trunk, Extremities and Genitalia. Plastic Surgeons also use surgery for many types of cosmetic works.

Is it true that exposure to a Solar Eclipse during pregnancy can cause congenital deformities in the fetus?
It is a widely accepted and a popular myth, that watching of a solar eclipse by an expectant mother may lead to d evelopment of cleft lip in children, but fortunately, it does not have any scientific rationale. It is a fact, that parents often blame themselves for development of such birth defects in their children, which is totally wrong. In trying to find out the causes for such a calamity, they start believing in a number of unscientific theories like exposure to eclipse or God’s punishment etc. Often, under the belief that the God for some misdeed has punished them, they do not subject their children for surgical correction at proper age. Scientifically, it is extremely difficult to attribute any single factor responsible for any type of birth defect. Familial tendencies (hereditary), severe anemia during pregnancy, viral diseases like measles, typhoid etc. during early weeks of pregnancy, can be contributing factors. Drug addiction as well as excessive smoking of pregnant women may influence the development of the organs during the formative period i.e. 6 – 9 weeks of gestation. Also excessive use of antibiotics, painkillers, Vitamin A or sedatives, do have an effect on the fetus. However, it is difficult to pinpoint any single factor in a given case but these factors alone or in combination may lead to congenital defects.

What about the hereditary factor you had mentioned earlier?
Hereditary does play a significant role in development of certain congenital defects e.g. cleft lip and palate. If either of the parents or both, have this deformity, chances of

Cleft Lip after repair

their child developing a similar deformity is definitely more than otherwise. However, it is also not certain that a child will definitely inherit all birth defects of either of his / her parents.

Why is it that often-congenital defects not only affect the physical, but also the mental capacity of the child?
Congenital defects do have a great impact on a child’s physical, mental, psychological and personality development. By and large, most of these defects barring a few like hearing, vision or articulation of the speech, do not affect normal mental development or intelligence of the child. The feeling of not having something or looking different from others may sometimes make these children either more hostile or introverted in their personal life.

What is the Image building role of parents in such cases?
Parents should be well advised by their family doctor or attending physician to understand the exact nature of the birth defect and its implications, which would end up in influencing the development of personality complexes. For some times even after successful physical and functional correction of the defects, it is difficult for a child to revert back to normal behavior.

In order to avoid prolonged mental agony, is it advocated to resort to an Immediate Surgery for correction of this congenital defect?
It is not necessary that all defects are corrected immediately after birth, but a regular examination by the specialist doctor and monitoring the growth of the child, would be very helpful in over all rehabilitation of these children. Proper medical guidance and reassurance that the child would look as normal as otherwise and be able to perform most of the physical necessities effectively would defin itely restore the confidence of parents, thus influencing the child’s psychology in formative years of his life.

Is it possible that all these defects can be rectified with surgery?
Not all congenital defects need surgical procedures for their reconstitution. Quite a few of these defects are self-limiting and would cease to grow after a certain age. You will be surprised to know that many children with severe congenital deformities adapt to their deformities so well by natural development, that any surgical or external interference would hamper rather than help functioning of these children.

At what age is it advisable to undergo surgical correction?
Common and an ideal age for surgical correction of most of these congenital defects is preschool age, so as when the child leaves the protected atmosphere of his home and has to mix with unfamiliar faces, he is apparently normal both in appearance as well as in functioning. Some defects can be corrected in one stage; however, others may require a series of stages, depending upon the nature of the defect.

Which congenital defects in your opinion would require an early surgery? Deformities like cleft lip, cleft palate, club foot, extrophy of the urinary bladder, ano-rectal malformation, arterio-venous malformations etc., which either influence proper development of the child or hamper vital functions, are subjected to an early surgical procedure. On the other hand, defects like port wine stains, cavernous Hemangioma, polydactily, facial asymmetry, distal hypospadias etc. can be left untreated for years or to be operated upon after complete body growth.

Which is the most common congenital defect?
Cleft lip and palate is one of the commonest congenital defects. On average about 1 in 800 normal childbirth, has one of these deformities. It has been observed that cleft of the palate is found more in females than in males.

Is a cleft lip normally accompanied by a cleft palate?
The structural identification and formation of lip, palate and other organs begin sometimes between seven to nine weeks of gestation. Lip and palate develop independently embryologicaly, hence either of these defects could occur separately or in varying combinations. In case of cleft of lip, invariably upper lip is involved and may range from a small notch at the lower border to a complete cleft of the lip upto the base of the nose, either on one side or both. This may also extend up to teeth, jaw or even junction of eye and nose. Similarly the defect in the palate may be a small invisible hole in the mobile portion of the palate or split uvula to complete cleft of both the mobile (soft) and bony palate. This may also extend up to the jaws in continuity with the cleft of the lip or may occur alone. A mother would find it difficult to breast-feed her newborn infant, who has a cleft lip and palate.

How does she go about it?
Due to muscular deficiency associated with cleft lip and palate, the child cannot develop sufficient intra-oral pressure to suck the milk from the mother’s br east. A mother should understand this and either assist the child by manual pressure on the breast or feed the child with a spoon or even from a feeding bottle with a large nipple hole. It must be further understood that children born with a cleft lip and palate, have a tendency to swallow excessive air along with milk and burping them often is important.

At what age is it important for cleft lip and palate to be surgically operated?
The aim of surgery in these cases is to restore anatomical continuity of the affect part before their normal functioning utility. Surgical correction of the cleft lip deformity is done between the age of 3 months to 6 months. At few centers of the world including one in India, the cleft lip is corrected within 24 – 48 hours after the birth, so as to minimize the psychological impact on the parents and to take advantage of extra strong healing power at this age transferred to the neonate from his / her mother. In case of cleft of the palate, the ideal time for surgical correction is between 12-18 months before the child starts articulation of speech, as also the oral cavity becomes large enough to allow the surgeon to work inside. In some cases additional surgical correction may be required to improve the speech at around the age of 4 – 5 years.

In this modern high technology age, do all parents of children with such a congenital deformity of cleft lip and / or palate want to have this operation performed immediately?
You will be surprised to know that most of such children do not get proper medical attention or advise for surgical correction. Due to some unfounded myths, parents do not come forward requesting an immediate surgery and some do not bother at all. Recently, there was a case of Young lady of 62 years, who had this operation performed. Often unacceptable results are due to operation performed by an incompetent or unqualified surgeon and may require secondary corrections, when the child has reached adolescence.

Is there anything wrong in having this operation done at a later age?
When children with a cleft palate come for surgery at a later age, they pose one more problem of faulty speech and articulation habits. It would require postoperative treatment of a speech therapist to retrain the child for correct speech. If for some medical reasons, the child cannot be subjected to an early surgery, then a prosthetic obturator is recommended. For proper growth of the jaw and dental arches in these patients, orthodontic assistance is required and this treatment may continue till the age of 15-16 years.

What are other common congenital defects?
Deformities of extremities are one of the common congenital deformities. Congenital defects in Upper limbs vary from minor bending of fingers to a total absence of the limb. Commonly seen problems include joining of two or more fingers (Syndactily), presence of extra fingers or digit (Polydactily) or short fingers (Bradydactily), absence of thumb, index or more fingers etc. These may be associated with deformities of muscles and / or bones.

Can you explain the corrective surgery for such defects?
Supernumerary digit can be surgically removed. The joined fingers are usually separated at the age of 4 – 5 years, unless they hamper the normal growth of the adjoining finger. The absence of thumb can also be corrected either by transferring the great / second toe from the foot by Microvascular surgery or by repositioning the index finger in place of thumb. Most commonly seen congenital deformities of the external genital organs are hypospadias i.e. the urinary opening on the undersurface of the penis, epispadias – urinary opening on the dorsal surface of the penis or extrophy of the bladder. Genital organs may be poorly developed or totally rudimentary. Minor and rare deformities include torsion of penis, anterior location of scrotum, bifid penis or absence of vagina. Preschool age is usually best time to undertake and complete most of the Reconstructive Surgical steps. For extreme case e.g. Extrophy of the Urinary bladder, which requires a multi-stage correction, Reconstructive surgery is started at the age of 1- 1½ years.

Dr. Sanjeev Uppal
Plastic Surgeon
DMCH Ludhiana

133  D, Kichlu Nagar,
LUDHIANA  141001
suppal@satyam.net.in

Pregnant Women ~ need to know