Staphylococcal bacteraemia

7-14 days IV recommended if uncomplicated. Higher relapse rate with shorter course.

Uncomplicated viz

  • Negative repeat blood cultures
  • Defervescence within 72 hours of treatment
  • No evidence of endocarditis
  • No prosthesis or venous catheter
  • No evidence of metastatic infection
  • No underlying immune issues

I wonder about PVL positive though.

Should echo if high risk for endocarditis, or persistent fever. And joints, abdominal cavity, CNS probably higher risk for treatment failure.

Consider removing catheters

Neonates should get 14 days IV.

If endocarditis, then 4-6 weeks IV treatment.

If osteoarthritis, then 3-6 weeks IV/oral treatment.

[Peds 2020]

Medication Overuse Headache

Well recognised condition where regular long term use of pain killers eg paracetamol leads to chronic headaches. Tends to be dull, particularly in the morning. And you might still get your migraine on top!

Of course, might be difficult to differentiate from chronic daily migraine (defined as more than 15 days in a month) or other headache that is not well controlled! It appears the majority of those with chronic migraine do not take or are not offered appropriate preventive medication.

To exclude, always have a day free of analgesia (including triptans) after any day where it has been used, and use a maximum of 3 days per week [Dr Abu-Arafeh’s advice] or else maximum 10 days per month.

Congenital diarrhoea

Usually severe and life threatening. May have been polyhydramnios prior to birth. Abdominal distension, even ileus at presentation, weight loss, nappy rash (if acidic stool).

In some of these conditions, symptoms improve through childhood, but may be susceptible to severe gastroenteritis.

Causes –

  • Congenital sodium diarrhoea – metabolic acidosis, low sodium. Can be associated with atresia choanae. Associated with later IBD.
  • Congenital chloride diarrhoea – metabolic alkalosis, low chloride. Treat with salt supplementation.
  • Congenital sucrase-maltase deficiency – no problem with breast milk, may not present until food aversion/intolerance emerges. Higher rates in Eskimo, where diet traditionally low in carbohydrate!
  • Congenital lactase deficiency esp Finland!
  • Congenital fructose (cf fructose malabsorption, IBS like) – hypoglycaemia, jaundice. Sucrose also triggers.
  • Glucose-Galactose intolerance – high sodium.
  • Lysinuric protein intolerance
  • Tufting enteropathy
  • Microvillous inclusion disease

Some lists include pancreatic disorders eg CF, Schwachmann-Diamond, other causes are abetalipoproteinaemia (so check lipids) and IPEX.

If diarrhoea stops with feed withholding, then osmotic rather than secretory. Anion gap (Na+K-Cl-Bic) in the stool greater than 50 (normal 10-20) indicates unidentified acidic substances.

Reducing substances in stool suggest carbohydrate malabsorption but not reliable (and test no longer made) – bacteria break down complex carbohydrates so false pos, molecular methods better.

Low albumin suggests protein losing enteropathy eg IPEX.

[ Int J Mol Sci. 2012; 13(4): 4168–4185. doi: 10.3390/ijms13044168]

Diarrhoea

According to NICE, 3 or more loose or liquid stools in a day (or more frequently than is normal for the individual) counts as diarrhoea.

Persisting for more than 14 days makes it chronic.

Acute typically gastroenteritis. Presence of blood and/or mucus suggests more invasive inflammation, viz colitis.

In kids, can occur with pretty much any illness!

Vomiting with diarrhoea makes a primary gut cause more likely, but still not specific.

Doctor-patient communication

Verbal, non-verbal and paraverbal (tone, pitch, volume) [Ranjan 2015].

Consultations – patient’s opening chat is interrupted by their doctor after mean 18 secs.  Patient talk for 40% of total consultation time, estimated by doctor at 60%.

Wayne et al 2011 – less info given to poorer and minorities, more dialogue and more informative with better educated, more literate patients

Neumann 2011 – decline in medical empathy: significant through medical school,  further declines through residency.  “Hidden” curriculum? Hardening/cynicism? Rosenthal 2011 – humanism and professionalism student module, no decline in 3rd year student empathy.

Chen 2012 – empathy associated with women, non-technological specialty preference, high debt!

Roter and Hall 2006 – doctors like to retain authority but poor at managing confrontation (eg eye contact) and picking up emotional cues of distress

Psychodynamic approach – counter transference (disgust, judgemental), counter resistance (non-compliance).

Narrative as diagnosis!  William Osler – the diagnosis is in the story.

Communication and teamwork “skills” underestimates complexity, the affective component.  Only learned if valued, rather than as something to be acquired

“Heroic individualism” valued in medicine, cf dialogue.

Students struggle to make conversation with patients!  Fear of intrusiveness, failure to connect medical issues with psychosocial elements.

Best – learn through active reflection on work based learning (cf how artificial PBL etc are).  Think about values, how they shape communication.  Modelling of democratic values.  Appreciation of complexity of communication.

[ Alan Bleakley, Peninsula medical school – Homer as evidence of honour/shame/face directed behaviours, cf feminine, guilt directed behaviours etc]

Participatory Medicine

Outside of the consultation, doctor-patient communication becomes a mixture of formal and informal, but both tend to be one sided. Formal letters are an essentially one sided message from the doctor to the patient. Informal communication includes requests or questions from the patient to the doctor but again, often one sided as it does not usually lead to a meaningful exchange.

See Participatory medicine.

Oratory

Communication skills are essential to career development, advocacy, leadership. See Oratory.

Difficult conversations

From “Everything happens for a reason – and other lies I’ve loved” by Kate Bowler:

Appendix 1 – absolutely never say this [my comments added]

  • Well, at least… [minimizing]
  • In my long life, I’ve learned… [good for you, have a medal]
  • It’s going to get better, I promise. [fantasy]
  • God needed an angel [only if you watch Ghost, and you think God is sadistic]
  • Everything happens for a reason. [let’s see if you appreciate my theories when you are drowning]
  • I’ve done some research [have you heard about… Forget what the professionals say, there’s bound to be a secret cure out there]
  • When my aunt had cancer [living it, thanks, would rather not have to relive someone else’s – particularly if this my opportunity to NOT think about it]
  • So how are the treatments going? [not nice to have to summarise it and regurgitate it constantly, please check first if I want to talk about it today, sometimes I do, sometimes I don’t]

Appendix 2 – give this a go

  • I’d love to bring you a meal this week [bring me anything, I don’t really know what I need, what are you good at?]
  • You are a beautiful person [nice to know you are doing a good job – without this being some sort of lesson.  And don’t make it sound like a eulogy]
  • I’m so grateful to hear about how you’re doing, and just know that I’m on your team [nice to not have to give you an update, great that you’re informed and concerned, let’s talk about something else]
  • Can I give you a hug?
  • Oh, my friend, that sounds so hard [sometimes it feels like no one wants to hear about how awful it is – simmer down, let them talk]
  • (silence) [the truth is no one knows what to say – pain, tragedy are awkward.  So show up and shut up)

Sometimes our role is just to sit in the rubble with families (Judith Murray).

See Spiritual Care.

Enteral feeding

Freka PEG tube can only be removed orally.  Good if v active, combative patient.  But risk of mucosal burying, so weekly push and pull.  Corflo can be removed by traction.  Need replacing every 18 months. 

Button preferred now, tube can be disconnected as required, replace every 12-18 months.  40% mortality at 5yrs post fundoplication where CP. 40% had no improvement in gagging symptoms.  Only 1 in 8 need subsequent fundo if PEG only done first, so tend not to be done at same time.

Alternatives – jejunal tube via PEG (needs continuous feeds) or jejunal button (less retching but more tube problems eg blockage).

Jejunostomy via Roux en Y potentially primary procedure.  Risk of volvulus.

Oesophagogastric disconnection – (Manchester) stomach detached from oesophagus, which gets plumbed on to Roux en Y instead. 

Bridles for NG/NJ skin fixation issues.

Blended diet for growth issues, feeding tolerance issues, failed jejunal, to avoid fundoplication. Currently not done via NG/NJ.

Air pollution

According to the 2010 Global Disease Burden Assessment, outdoor air pollution caused more than three percent of the annual disability and life lost. Rising due to urbanisation. Responsible for 50 000 deaths annually in the UK.

Air pollution associated with low birth weight, smaller heads, developmental disorders eg autism, type 2 DM, strokes, heart attacks (atherosclerosis), cognitive decline, slower development of lung function with reduced adult capacity (implication for COPD), onset of asthma, wheeze. Not just exacerbations of chronic lung disease!

Different kinds of pollution – particulates (different sizes eg PM1), nitrogen dioxide, sulphur dioxide.  Most PM10 from traffic, but natural sources too eg pollen, soil.  Wood burners! NO2 and SO2 falling as fewer power stations and less industrial output, but NO2 particular problem for urban centres where most commercial vehicles run on diesel.

Diesel engines also produce polycyclic aromatic hydrocarbons eg BaP (Benzo pyrene), maternal exposure a concern as linked to mental health and neurodevelopmental problems in children. Some also carcinogenic.

Particulates a problem for respiratory conditions. Often contain spores and pollen. Ozone associated with airway hyperresponsiveness.

Not just about degree of pollution – metereological factors (temperature, atmospheric pressure, low humidity etc) complicate. In Taiwan, pollution synergistic with dust mites for development of asthma.

Carbon deposits found in fetal side placental macrophages. 

MRSA and stenotrophomonas colonization in CF associated with maternal PM levels.

European study of 325 000 adults found mortality increased proportionally with levels of particulate matter, nitrogen dioxide and black carbon – even at levels below current EU/US/WHO standards. [BMJ 2021;374]

Southern California reduced PM levels and found less severe chronic lung problems.

1 hour commuting in Sao Paolo estimated to be equivalent to  5 cigs/d.  In London, travel to school is bulk of exposure (plus school breaks! Note locations!) esp stationary traffic.

What cars produce in lab tests is not the same as in the real world, even when manufacturers don’t cheat!

Low emission zones generally exclude cars, and may just divert traffic elsewhere, not much evidence that they help. London low emission zone has reduced NO2 slightly only.  Plan for ultra low zone. 

[Abigail Campbell, SPRING meeting 2019, https://www.ncbi.nlm.nih.gov/pmc/articles/PMC6016370/ ]

Medical Error

See Bawa-Garba case.

In a complex system, some errors are unavoidable. Their incidence can be reduced by better system design but they cannot be eliminated.

An error may have been the result of a decision, that could have been made differently, but when people are trying to work in an under-resourced and overstretched system, errors may be difficult to avoid.

Deterrence should therefore not involve criminalisation, but those who can influence the system eg managers and service directors.

Many errors are minor and inconsequential, but James Reason’s Swiss Cheese model highlights how a number of errors can align to enable more serious harm to occur.

In cases of “gross negligence”, the prosecution must establish beyond reasonable doubt that the failures caused the death. Unfortunately, a not guilty verdict may suggest that care was adequate. Prosecutions focus on the individual, not on the wider team or the healthcare system.

Good Practice

  • Families should receive open disclosure and an apology
  • If possible, the harm should be treated as a priority
  • When relevant, compensation should be paid
  • Appropriate mechanisms should be in place to hold to account those responsible for delivery of care
  • Punishment may be appropriate but should be proportionate to the moral culpability of the behaviour, not the outcome of complex clinical problems
  • Responses to problems should be timely – complex systems need repeated and rapid adjustment. Not served well by lengthy investigations.
  • Motivated staff should be afforded the safety of a “just culture”, rather than “no blame” or “who’s the one to blame”.
  • Culture of safety from health minister to most junior

Legal basis

According to the Bolam judgement, if a doctor has acted according to proper and accepted practice (standards of one’s peers), s/he is not guilty of medical negligence (even if some disagree with that practice); whereas the Bolitho judgement adds that practice must however be logically defensible – it’s not enough just that others do it!

Montgomery vs NHS Lanarkshire –

Bellshill shoulder dystopia and CP – Supreme Court overruled previous judgment. “Whether a risk is material should not be reduced to percentages”, nor should it be simply for the doctor to decide. “Would a reasonable person in the patient’s position be likely to attach significance to a risk?” Or does the doctor have reason to think the particular patient might feel it was significant?  That is the test of “materiality”. 

Patient does not have to ask specific question. Indeed, responsibility for concerns to be explored. 

Does not mean patients must be bombarded with information, must be comprehensible. 

Official verdict is as follows:

  • Doctor is under a duty to take reasonable care to ensure that her patient is aware of any material risks involved in any recommended treatment, and of any reasonable alternative or variant treatments.
  • The test of materiality is whether, in the circumstances of the particular case, a reasonable person in the patient’s position would be likely to attach significance to the risk, or the doctor is or should reasonably be aware that the particular patient would be likely to attach significance to it.
  • The significance of a given risk is likely to reflect a variety of factors besides its magnitude: for example, the nature of the risk, the effect which its occurrence would have upon the life of the patient, the importance to the patient of the benefits sought to be achieved by the treatment, the alternatives available, and the risks involved in those alternatives. The assessment is therefore fact sensitive, and sensitive also to the characteristics of the patient.
  • What amounts to a material risk and the skill and judgement required in explaining risks to the patient is for the Court, and not the medical profession, to judge.
  • To prove a breach of duty to advise and warn, a pursuer does not require to prove that no doctor of ordinary skill would have failed to have given her advice, if acting with ordinary care, as supported by medical opinion.
  • A patient may decide that she does not wish to know what her risks and options are.
  • The “therapeutic exception”, which allows a doctor to withhold information from a patient only applies if its disclosure would be seriously detrimental to the patient’s health, or in circumstances of necessity, such as where the patient is unconscious or unable to decide.
  • Causation continues to be based on a subjective test: what the pursuer was likely to have done, had she been warned and advised properly. To prevent hindsight bias, this will require to be tested by other evidence.

Interesting that language of consumers and choice was used in judgement, as if these decisions are simply a matter of providing information and allowing rational judgement – when lots of evidence to say that isn’t how people behave in practice!

Don’t call me brave

Often said to children when they are sad or frightened. But doesn’t help, only makes it seem wrong to have feelings.

Sometimes you need to take a break. And hovering in the doorway doesn’t count.

It can feel like there’s nowhere safe in hospital, that no one understands you. Does being brave mean keeping quiet for the happiness of others?

Instead of calling someone brave, maybe try pointing out that grown ups can feel scared too. Have you explained what the test is for, and why it is needed? Have you apologised for making them upset?

Three strike policy can help an anxious child feel respected and in control.

[Sophie Lyons, BMJ 2018;360:k1299]