Patient (condition)
 
Aliases:
PHT
PAH
Pulmonary Artery Hypertension
PA Hypertension

Topic aliases are alternate phrasings for a particular topic.


Primary (idiopathic) pulmonary hypertension (PPH) is rare. Cause is unknown (hence idiopathic) & life expectancy is 2-3 yrs from diagnosis.
Secondary PH is more common, & usually due to underlying pulmonary or cardiovascular disease.

Primary concerns are assessing disease severity, preoperative optimisation, clarifying perioperative risk, heightened monitoring, & minimising intraoperative elevation of pulmonary artery pressures refl.in/eh

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Pulmonary artery hypertension (PAH) is defined as a mean pulmonary arterial (PAP) pressure of greater than 25 mm Hg at rest, or greater than 30 mm Hg during exercise. refl.in/eg refl.in/eh

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WHO classification:
1. Pulmonary artery hypertension (PAH);
2. PAH due to left heart disease;
3. PAH due to pulmonary disease;
4. chronic thromboembolic-pulmonary-hypertension;
5. PAH with unclear multifactorial mechanisms. refl.in/ei

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Trans-thoracic echocardiogram TTE may indicate an estimated pulmonary artery pressure, although note that pulmonary artery pressures may tend to normalise in decompensated right ventricular failure.

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Check medications for anticoagulants. Patient may be anticoagulated ( warfarin, clexane) as this may have a mortality benefit in patients with pulmonary hypertension. refl.in/ef

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Any two of the following features allocates the patient to the high risk group

#adamskinner #RCHmelbourne

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If pulmonary hypertension is present during pregnancy, consider preadmisison to intensive care unit prior to delivery. #improve

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Perianaesthesia protocol for high risk patients at #RCHMelbourne (Rosella is ICU)

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Perianaesthesia protocol for mid risk patients at #RCHMelbourne

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Perioperative guidelines for patients with pulmonary arterial hypertension at Royal Childrens Hospital Melbourne

www.rch.org.au/rchcpg/hos...

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Refer the patient to their physician if there has been no review within the last 6 months, or if symptoms have worsened since last appointment.

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A pulmonary artery-catheter may be indicated in patients with severe PAH undergoing major surgery to monitor and manage elevations in pulmonary artery pressure perioperatively.

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Pre-induction arterial line is indicated in patients with moderate-severe pulmonary hypertension undergoing major surgery to monitor for haemodynamic dysfunction at induction.

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Avoid hypercarbia and hypoxia which may raise pulmonary vascular-resistance

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Avoid acidemia which may raise pulmonary vascular resistance

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Avoid hypothermia which may raise pulmonary vascular resistance

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Before inducing patients with severe pulmonary hypertension have an adrenaline infusion prepared ready to give in case of haemodynamic instability.

In patients that arrest at intubation is highly, likely consider having adrenaline infusion already running and primed in the central line if one is present.

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Overview of management of pulmonary hypertension in children

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1
Treatment of the pulmonary hypertensive crisis from Texas Children's Hospital
#spanza2012

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