Treatment for Herpes Zoster (Shingles)

Herpes zoster, commonly known as shingles, is a viral infection that affects a specific dermatome. It is recommended to start antiviral treatment, such as aciclovir, within 72 hours of rash onset for individuals over 50 years old. Aciclovir has been shown to reduce the duration of symptoms and the risk of post-herpetic neuralgia. It is also indicated for those with ophthalmic herpes zoster, non-truncal rash, moderate to severe pain or rash, and immunocompromised individuals. Prednisolone may be added to aciclovir, but results are mixed. Pain relief can be achieved with co-codamol, but stronger medications may be necessary. Amitriptyline or gabapentin may be used for post-herpetic neuralgia. Antiviral treatment is not recommended for immunocompetent children with mild symptoms.

Combining methotrexate with antibiotics that contain trimethoprim can lead to bone marrow suppression and potentially fatal pancytopenia. The risk of haematological toxicity is higher when trimethoprim is used in conjunction with methotrexate.

Methotrexate is an antimetabolite that hinders the activity of dihydrofolate reductase, an enzyme that is crucial for the synthesis of purines and pyrimidines. It is a significant drug that can effectively control diseases, but its side-effects can be life-threatening. Therefore, careful prescribing and close monitoring are essential. Methotrexate is commonly used to treat inflammatory arthritis, especially rheumatoid arthritis, psoriasis, and acute lymphoblastic leukaemia. However, it can cause adverse effects such as mucositis, myelosuppression, pneumonitis, pulmonary fibrosis, and liver fibrosis.

Women should avoid pregnancy for at least six months after stopping methotrexate treatment, and men using methotrexate should use effective contraception for at least six months after treatment. Prescribing methotrexate requires familiarity with guidelines relating to its use. It is taken weekly, and FBC, U&E, and LFTs need to be regularly monitored. Folic acid 5mg once weekly should be co-prescribed, taken more than 24 hours after methotrexate dose. The starting dose of methotrexate is 7.5 mg weekly, and only one strength of methotrexate tablet should be prescribed.

It is important to avoid prescribing trimethoprim or co-trimoxazole concurrently as it increases the risk of marrow aplasia. High-dose aspirin also increases the risk of methotrexate toxicity due to reduced excretion. In case of methotrexate toxicity, the treatment of choice is folinic acid. Overall, methotrexate is a potent drug that requires careful prescribing and monitoring to ensure its effectiveness and safety.

Hepatitis E and D: A Comparison

Hepatitis E is a self-limiting illness that follows a similar course to hepatitis A. However, fulminant disease can occur in a small percentage of cases. This type of hepatitis is most commonly found in developing countries and is transmitted through contaminated drinking water. While person-to-person contact transmission is rare, maternal-neonatal transmission can occur, with pregnant women being at the highest risk of developing fulminant hepatitis. Management of hepatitis E is supportive, and there are no chronic cases except in immunocompromised individuals.

On the other hand, hepatitis D requires co-infection with hepatitis B to cause inflammation. Co-infection with hepatitis D increases the likelihood of hepatitis B progressing to chronic disease and cirrhosis. Hepatitis D is most commonly found in Mediterranean countries, parts of Eastern Europe, the Middle East, Africa, and South America.

Understanding the Causes and Risks of Falls in the Elderly

As people age, the risk of falling increases significantly. In fact, around 30% of those over 60 years old experience a fall each year, with this number rising to 50% for those over 80. While simple trips account for 50% of falls, 30% are idiopathic, meaning the cause is unknown. However, dizziness, cardiovascular issues, and drug use can also contribute to falls.

Neurological diseases like Parkinson’s and Alzheimer’s, as well as previous cerebrovascular disease, are common causes of falls in those who have these conditions. Even patients in stroke rehabilitation wards have a high risk of falling, with up to 50% experiencing a fall. Unfortunately, falls often result in injury, with up to 70% causing harm and 10% resulting in fractures.

Interestingly, female sex is a risk factor for falls, and certain medications like hypnotics, antidepressants, blood pressure-lowering drugs, and anticonvulsants have been linked to a higher risk of falling. By understanding the causes and risks of falls in the elderly, we can take steps to prevent them and keep our loved ones safe.

BTS Guidance on Low Dose ICS and LABA Treatment

According to the 2016 BTS guidance, if a patient taking a low dose ICS doesn’t respond to the addition of a LABA, the LABA should be discontinued. Instead, healthcare providers should consider increasing the dose of ICS. It is important to note that options suggesting only an increase in ICS dose without stopping the LABA are incorrect.

This guidance emphasizes the importance of individualized treatment plans for patients with respiratory conditions. By carefully monitoring patient response to medication and adjusting treatment as needed, healthcare providers can help improve patient outcomes and quality of life. Proper medication management can also help reduce the risk of adverse effects and complications associated with respiratory conditions.

In 2014, sildenafil was removed from the list of restricted medications and can now be prescribed without limitations.

Phosphodiesterase type V inhibitors are medications used to treat erectile dysfunction and pulmonary hypertension. They work by increasing cGMP, which leads to relaxation of smooth muscles in blood vessels supplying the corpus cavernosum. The most well-known PDE5 inhibitor is sildenafil, also known as Viagra, which is taken about an hour before sexual activity. Other examples include tadalafil (Cialis) and vardenafil (Levitra), which have longer-lasting effects and can be taken regularly. However, these medications have contraindications, such as not being safe for patients taking nitrates or those with hypotension. They can also cause side effects such as visual disturbances, blue discolouration, and headaches. It is important to consult with a healthcare provider before taking PDE5 inhibitors.

The Importance of GI and Nutrition in Diabetes and Dieting

The GI and nutrition are crucial factors to consider when it comes to managing diabetes and maintaining a healthy diet. In exams, questions related to these topics are common. Foods with a low GI are recommended for people with diabetes as they cause a smaller increase in blood glucose levels, resulting in better glycaemic control.

For instance, potatoes have a high GI, which means they can cause a rapid spike in blood sugar levels. On the other hand, cucumber has the lowest GI, making it an excellent choice for people with diabetes. By understanding the GI and nutrition of different foods, individuals can make informed choices about what they eat, which can help them manage their diabetes and maintain a healthy weight.

Pertussis Immunisation for Infants and Pregnant Women

Young infants are most vulnerable to serious complications from pertussis, which is why children receive multiple doses of the vaccine starting at two months of age. The vaccine is given as part of the 6-in-1 vaccine and again before starting school. However, pregnant women are now also being immunised against pertussis in the later stages of pregnancy. This is to enable them to transfer a high level of antibodies across the placenta to their unborn child, providing protection against pertussis until the first dose of immunisation. By vaccinating pregnant women, we can help protect the most vulnerable members of our population from this potentially deadly disease.

For women over 40, combined hormonal contraception (COCP) can be beneficial in reducing menstrual bleeding and pain, as well as alleviating menopausal symptoms. However, it is important to consider certain factors when prescribing COCP to women over 40. The UKMEC criteria for women over 40 is 2, while for women from menarche until 40, it is 1. The Faculty of Sexual and Reproductive Health recommends the use of COCP until age 50, provided there are no other contraindications. However, women over 50 should be advised to switch to a safer alternative method of contraception, as the risks associated with COCP use outweigh the benefits. Women who smoke should stop using COCP at 35, as smoking increases the risk of mortality. While COCP is associated with a reduced risk of ovarian and endometrial cancer, there is a slightly increased risk of breast cancer among women using COCP, which diminishes after 10 years of cessation. Women using COCP for non-contraceptive benefits after the age of 50 should be considered on an individual basis using clinical judgement and informed choice.

Women over the age of 40 still require effective contraception until they reach menopause, despite a significant decline in fertility. The Faculty of Sexual and Reproductive Healthcare (FSRH) has produced specific guidance for this age group, titled Contraception for Women Aged Over 40 Years. No method of contraception is contraindicated by age alone, with all methods being UKMEC1 except for the combined oral contraceptive pill (UKMEC2 for women >= 40 years) and Depo-Provera (UKMEC2 for women > 45 years). The FSRH guidance provides specific considerations for each method, such as the use of COCP in the perimenopausal period to maintain bone mineral density and reduce menopausal symptoms. Depo-Provera use is associated with a small loss in bone mineral density, which is usually recovered after discontinuation. The FSRH also provides a table detailing how different methods may be stopped based on age and amenorrhea status. Hormone replacement therapy cannot be relied upon for contraception, and a separate method is needed. The FSRH advises that the POP may be used in conjunction with HRT as long as the HRT has a progestogen component, while the IUS is licensed to provide the progestogen component of HRT.

Supplements and Their Risks and Benefits

Previously recommended supplements contained beta-carotene, but it is no longer recommended for smokers and ex-smokers due to the possible increase in lung cancer risk. However, high-dose vitamin and mineral supplements may slow the progression of age-related macular degeneration. This includes vitamin C, vitamin E, beta-carotene (vitamin A), zinc oxide, and cupric oxide. Those who may benefit are those with advanced age-related macular degeneration or visual loss in one year and people with intermediate age-related macular degeneration who have extensive drusen.

It is important to note that high doses of beta-carotene can cause harmless yellowing of the skin, but it also increases the risk of urinary tract infections and stones and urinary retention. Beta-carotene has been associated with an increased risk of lung cancer in people who smoke or who have been exposed to asbestos. One study of 29,000 male smokers found an 18% increase in lung cancer in the group receiving 20 mg of beta-carotene a day for 5 to 8 years. Therefore, it is crucial to be aware of the risks and benefits of supplements before taking them.