Uncertainty Health Dictionary

Uncertainty: From 1 Different Sources


n. the situation in which no diagnostic conclusion can (yet) be reached but the patient remains ill. Professionals vary in their ability to cope with this uncertainty: the best clinical practice is to accept the lack of clarity, to continue to support the patient, and to use the situation creatively in his or her *best interest in the interim.
Health Source: Oxford | Concise Colour Medical Dictionary
Author: Jonathan Law, Elizabeth Martin

Caesarean Section

The operation used to deliver a baby through its mother’s abdominal wall. It is performed when the risks to mother or child of vaginal delivery are thought to outweigh the problems associated with operative delivery. One of the most common reasons for Caesarean section is ‘disproportion’ between the size of the fetal head and the maternal pelvis. The need for a Caesarean should be assessed anew in each pregnancy; a woman who has had a Caesarean section in the past will not automatically need to have one for subsequent deliveries. Caesarean-section rates vary dramatically from hospital to hospital, and especially between countries, emphasising that the criteria for operative delivery are not universally agreed. The current rate in the UK is about 23 per cent, and in the USA, about 28 per cent. The rate has shown a steady rise in all countries over the last decade. Fear of litigation by patients is one reason for this rise, as is the uncertainty that can arise from abnormalities seen on fetal monitoring during labour. Recent research suggesting that vaginal delivery is becoming more hazardous as the age of motherhood rises may increase the pressure from women to have a Caesarean section – as well as pressure from obstetricians.

The operation is usually performed through a low, horizontal ‘bikini line’ incision. A general anaesthetic in a heavily pregnant woman carries increased risks, so the operation is often performed under regional – epidural or spinal – ANAESTHESIA. This also allows the mother to see her baby as soon as it is born, and the baby is not exposed to agents used for general anaesthesia. If a general anaesthetic is needed (usually in an emergency), exposure to these agents may make the baby drowsy for some time afterwards.

Another problem with delivery by Caesarean section is, of course, that the mother must recover from the operation whilst coping with the demands of a small baby. (See PREGNANCY AND LABOUR.)... caesarean section

Computerised Decision-support Systems

Also known as ‘expert systems’, these are computer software systems intended to help doctors make clinical decisions. Primary care medicine is especially noted for its uncertainty by virtue of being most patients’ ?rst point of contact with health care, confronting the clinician with many ‘undi?erentiated’ health problems. So far, these systems have not been as e?ective as expected because of a failure to ana-lyse the needs of primary care. Simple procedures to prompt the delivery of treatment to patients with chronic conditions have improved care quality, but work needs to be done on their cost-e?ectiveness. The aim of more complex computerised support systems will be to forecast likely future events and the possible e?ectiveness of proposed interventions, based on available information about the patient and an understanding of the risks and e?cacy of interventions by doctors and other experts.

One example, called ISABEL, can be accessed by paediatricians to check on their diagnosis and management of many childhood disorders.... computerised decision-support systems

Gender Identity Disorders

Gender identity is the inner sense of masculinity or femininity, and gender role is an individual’s public expression of being male, female, or a ‘mix’ (androgynous). Most people have no di?culty because their gender identity and role are congruous. A person with a gender identity disorder, however, has a con?ict between anatomical sex and gender identity.

Gender is determined by a combination of genetic and environmental factors, in which the in?uence of family upbringing is an important factor. When physical sexual characteristics are ambiguous, the child’s gender identity can usually be established if the child is reared as being clearly male or female. Should, however, the child be confused about its sexual identity, the uncertainty may continue into adult life. Transsexuals generally experience con?icts of identity in childhood, and such problems usually occur by the age of two years. In this type of identity disorder, which occurs in one in 30,000 male births and one in 100,000 female births, the person believes that he or she is the victim of a biological accident, trapped in a body different from what is felt to be his or her true sex.

Treatment is di?cult: psychotherapy and hormone treatment may help, but some affected individuals want surgery to change their body’s sexual organs to match their innately felt sexual gender. The decision to seek a physical sex change raises major social problems for individuals, and ethical problems for their doctors. Surgery, which is not always successful in the long term, requires careful assessment, discussion and planning. It is important to preclude mental illness; results in homosexual men who have undergone surgery are not usually satisfactory. Advice and information may be obtained from Gender Identity Consultancy Services.... gender identity disorders

Inference

The process of passing from observations and axioms to generalizations. In statistics, the development of generalizations from sample data, usually with calculated degrees of uncertainty.... inference

International Classification Of Health Problems In Primary Care (ichppc)

A classification of diseases, conditions and other reasons for attendance for primary care. This classification is an adaptation of the ICD but makes allowance for the diagnostic uncertainty that prevails in primary care.... international classification of health problems in primary care (ichppc)

Insecurity

Lack of self-confidence and uncertainty about one’s abilities, aims, and relationships with others.

A feeling of insecurity may be a feature of anxiety and other neurotic mental disorders.... insecurity

Futile

adj. describing an intervention with little or no prospect of achieving its aim or intended purpose, often used to justify withholding or withdrawing medical treatment at the end of life. Claims that treatment is futile may be controversial because of the inherent uncertainty of prognoses, value judgments about quality of life, and contested therapeutic aims. Intensive care, for example, cannot be said to be futile simply on the grounds that the patient is unlikely to regain full health, since restoration of full health was never the intended purpose. —futility n.... futile

Bach Remedies

Prescribed according to mental symptoms or personality traits:

1. Agrimony. Those who suffer considerable inner torture which they try to dissemble behind a facade of cheerfulness.

2. Aspen. Apprehension and foreboding. Fears of unknown origin.

3. Beech. Critical and intolerant of others. Arrogant.

4. Centaury. Weakness of will; those who let themselves be exploited or imposed upon – become subservient; difficulty in saying ‘no’. Human doormat.

5. Cerato. Those who doubt their own judgement, seeks advice of others. Often influenced and misguided.

6. Cherry Plum. Fear of mental collapse/desperation/loss of control and fear of causing harm. Vicious rages.

7. Chestnut Bud. Refusal to learn by experience; continually repeating the same mistakes.

8. Chicory. The over-possessive, demands respect or attention (selfishness), likes others to conform to their standards. makes martyr of oneself.

9. Clematis. Indifferent, inattentive, dreamy, absent-minded. Mental escapist from reality.

10. Crab Apple. Cleanser. Feels unclean or ashamed of ailments. Self disgust/hatred. House proud.

11. Elm. Temporarily overcome by inadequacy or responsibility. Normally very capable.

12. Gentian. Despondent. Easily discouraged and dejected.

13. Gorse. Extreme hopelessness – pessimist – ‘Oh, what’s the use?’.

14. Heather. People who are obsessed with their own troubles and experiences. Talkative ‘bores’ – poor listeners.

15. Holly. For those who are jealous, envious, revengeful and suspicious. For those who hate.

16. Honeysuckle. For those with nostalgia and who constantly dwell in the past. Homesickness.

17. Hornbeam. ‘Monday morning’ feeling but once started, task is usually fulfilled. Procrastination.

18. Impatiens. Impatience, irritability.

19. Larch. Despondency due to lack of self-confidence; expectation of failure, so fails to make the attempt. Feels inferior though has the ability.

20. Mimulus. Fear of known things. Shyness, timidity.

21. Mustard. Deep gloom like an overshadowing dark cloud that descends for no known reason which can lift just as suddenly. Melancholy.

22. Oak. Brave determined types. Struggles on in illness and against adversity despite setbacks. Plodders.

23. Olive. Exhaustion – drained of energy – everything an effort.

24. Pine. Feelings of guilt. Blames self for mistakes of others. Feels unworthy.

25. Red Chestnut. Excessive fear and over caring for others especially those held dear.

26. Rock Rose. Terror, extreme fear or panic.

27. Rock Water. For those who are hard on themselves – often overwork. Rigid minded, self denying. 28. Scleranthus. Uncertainty/indecision/vacillation. Fluctuating moods.

29. Star of Bethlehem. For all the effect of serious news, or fright following an accident, etc.

30. Sweet Chestnut. Anguish of those who have reached the limit of endurance – only oblivion left.

31. Vervain. Over-enthusiasm, over-effort; straining. Fanatical and highly-strung. Incensed by injustices. 32. Vine. Dominating/inflexible/ambitious/tyrannical/autocratic. Arrogant Pride. Good leaders.

33. Walnut. Protection remedy from powerful influences, and helps adjustment to any transition or change, e.g. puberty, menopause, divorce, new surroundings.

34. Water Violet. Proud, reserved, sedate types, sometimes ‘superior’. Little emotional involvement but reliable/dependable.

35. White Chestnut. Persistent unwanted thoughts. Pre-occupation with some worry or episode. Mental arguments.

36. Wild Oat. Helps determine one’s intended path in life.

37. Wild Rose. Resignation, apathy. Drifters who accept their lot, making little effort for improvement – lacks ambition.

38. Willow. Resentment and bitterness with ‘not fair’ and ‘poor me’ attitude.

39. Rescue Remedy. A combination of Cherry Plum, Clematis, Impatiens, Rock Rose, Star of Bethlehem. All purpose emergency composite for causes of trauma, anguish, bereavement, examinations, going to the dentist, etc. ... bach remedies

Emotionally Unstable Personality Disorder

a *personality disorder characterized by a tendency to act impulsively without consideration of the consequences, unpredictable and capricious mood, a tendency towards outbursts of emotion, inability to control behavioural explosions, quarrelsome behaviour, and conflict with others. There is an impulsive type, with particular emphasis on impulsivity and quarrelsome behaviour, especially when criticized; and a borderline type, with an emphasis on disturbance and uncertainty about self-image (including sexual preference), liability to become involved in intense and unstable relationships, excessive efforts to avoid abandonment, recurrent threats or acts of self-harm, and chronic feelings of emptiness. Treatments include cognitive analytical therapy (see cognitive therapy), *antipsychotic medication, and occasionally *SSRIs and *lithium. In DSM-5 the disorder is called borderline personality disorder.... emotionally unstable personality disorder

Equipoise

n. a state of genuine and substantial uncertainty as to which of two or more courses of action will be best for a patient. Equipoise is an important ethical principle in research, specifically in the design of clinical trials. It is generally held that the random allocation of patients to one or other arm of a trial is ethically acceptable only where there is a genuine uncertainty (equipoise) as to which treatment will most benefit trial participants. Knowingly to assign an individual to inferior or ineffective treatment (such as a placebo) would offend against the principle that his or her *best interests are paramount. A distinction is sometimes made between clinical equipoise, which refers to uncertainty across the medical profession as a whole, and theoretical equipoise, which refers to the uncertainty of an individual doctor. In addition, patients may not share the state of equipoise; for example, if a patient has his or her own preferences and there are significant side-effects influencing the choice of treatment, it would be *paternalistic and counter to *beneficence not to respect that patient’s wishes.... equipoise

Ravensara

Ravensara aromatica

FAMILY: Lauraceae

SYNONYMS: Madagascar clove-nutmeg, aromatic ravensare, Ravensara anisata, Agatophyllum aromaticum.

GENERAL DESCRIPTION: The genus Ravensara includes many species of evergreen trees or shrubs native to Madagascar and the Comoro Islands. These evergreen trees can grow up to 30 metres tall in rainforests, usually on all type of soils. The best-known species of this genus is R. aromatica used for its essential oil. It grows to a height of about 20 metres with several buttress roots at the base, with reddish bark, dark green shiny leaves and small yellow-green flowers. The fruit, a fleshy berry, are an important food source for birds. All parts of the tree are aromatic.

DISTRIBUTION: R. aromatica is native to Madagascar and once thrived in the rainforests, but is now an endangered species due to de-forestation and over-exploitation. By the early part of this century, this species required protection as the production of the essential oil from the bark, used by the pharmaceutical industry, was particularly destructive as it required felling the trees. Only the leaves can now be used for oil production, to prevent cutting down the whole tree. There is now a conservation programme in place to protect these trees: it is therefore important to obtain the essential oil of the leaf from sustainable sources.

OTHER SPECIES: There are over 30 species of Ravensara that grow in Madagascar. The common name of the genus Ravensara is actually a latinization of the Malagasy term ravintsara which means ‘good leaves’, a term originally used by the natives to describe another species of tree. European botanists in the nineteenth century made several attempts to classify the various indigenous aromatic trees of Madagascar, but due to the similarity of the two names ‘ravintsara’ and ‘ravensara’ they came to be used almost interchangeably. The botanical confusion between these two species has continued to cause a great deal of uncertainty as to their precise origins. In fact, the essential oils derived from these two species are very different aromatically as well as in their chemical composition. However, most of so-called ‘ravensara’ oil from Madagascar, is actually produced from the Cinnamomum camphora species (even if it is said to derive from R. aromatica) so great care needs to be taken in identifying the correct source of each oil. See also entry for Ravintsara.

HERBAL/FOLK TRADITION: In Madagascar, this genus of trees is commonly called hazomanitra, meaning ‘tree that smells’, as the whole part of the plant is aromatic. Traditionally, the Malagasy people used the bark and stem as a tonic and as an antibacterial medicine. The leaves were also burnt in homes after a death to prevent the spread of disease while the anise-flavoured bark was used in the production of local rum. The oil from the Ravensara genus is referred to locally as ‘the oil that heals’ because it is used for so many different conditions. The essential oil from the bark, R. anisata (a synonym for R. aromatica) is known as ‘havozo’ and has a strong anise-like odour.

ACTIONS: Antiviral, antibacterial, antifungal, anti-infectious, antiseptic, antispasmodic, expectorant, immune-stimulant.

EXTRACTION: 1. Ravensara oil is steam distilled from the leaves of the plant. 2. The essential oil distilled from the bark is called havozo. 3. An essential oil is also extracted occasionally from the fleshy fruits or berries.

CHARACTERISTICS: 1. Ravensara oil (from the leaf) has a sweet, fresh, slightly lemony, licorice-like scent with an earthy undertone. 2. Havozo (from the bark) has a fresh, strong aniseed-like odour.

PRINCIPAL CONSTITUENTS: 1. The oil from the leaf contains relatively small amounts of methyl chavicol (estragole), myrcene, a-pinene and linalool with the main constituents being limonene (approx. 13–22 per cent) and sabinene (approx. 10–16 per cent) with very little 1,8-cineole (1.8–3.3 per cent). 2. Havozo (bark oil) has a high methyl chavicol content (up to 90 per cent).

SAFETY DATA: 1. Ravensara (R. aromatica) is generally considered a safe oil (non-toxic and non-irritant) although it is best avoided during pregnancy. 2. Havozo oil is not recommended for use in aromatherapy due to its high methyl chavicol content, as it is a suspected carcinogen. Research has shown, nevertheless this oil has potent anti-microbial properties, being active against E. coli.

AROMATHERAPY/HOME: USE

Skin care: Chickenpox, cold sores, herpes (all types), shingles.

Circulation muscles and joints: Aching limbs, arthritis, cramp, gout, muscle fatigue, rheumatism.

Respiratory system: Bronchitis, colds, congestion, influenza, sinusitis, throat and lung infections, whooping cough.

Immune system: Viral infections especially herpes, hepatitis, chicken pox.

Nervous system: Anxiety, insomnia, nervous tension, stress.

OTHER USES: Ravensara species have been used for a long time to produce essential oils for the pharmaceuticals industry. In perfumery usage, it is employed as a middle note.... ravensara




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