Stable IHD: reduced risk of cardiovascular complications in patients who had previous myocardial infarction and / or coronary revascularization
With the development of unstable angina during the first month of therapy with the drug Perindopril should evaluate the benefits and risks before continuing therapy.
Arterial hypotension
ACE inhibitors can cause a sharp decrease in blood pressure. Symptomatic arterial hypotension rarely develops in patients with uncomplicated course of arterial hypertension. The risk of excessive decrease in blood pressure is increased in patients with reduced BCC, which can be observed against diuretic therapy, with strict salt-free diet, hemodialysis, vomiting and diarrhea, as well as in patients with severe hypertension with high renin plasma activity (see section "Interaction with other drugs").
In most cases, episodes of severe BP decrease are observed in patients with severe CHF, both in the presence of concomitant renal failure and in its absence. Most often, this side effect is observed in patients receiving "loop" diuretics in high doses, as well as in patients with hyponatremia or with renal dysfunction. At the beginning of therapy and with an increase in the dose of the drug Perindopril patients should be under close medical supervision (see p.sections "Method of administration and dose" and "Side effect"). This approach should be used in patients with angina and cerebrovascular diseases, in which severe arterial hypotension can lead to myocardial infarction or cerebrovascular complications.
With a significant decrease in blood pressure, the patient should be transferred to the "lying down" position, the legs should be raised, BCC replenishment (for example, intravenous infusion 0.9% solution of sodium chloride). The pronounced decrease in blood pressure at the first intake of the drug is an obstacle for the further use of the drug. After the recovery of bcc and blood pressure, treatment can be continued with careful selection of the doses of the drug Perindopril.
In some patients with CHF and normal or low blood pressure Perindopril may cause an additional decrease in blood pressure. This effect is predictable and usually does not require discontinuation of therapy. If symptoms of a marked decrease in blood pressure appear, reduce the dose or stop taking it.
Mitral stenosis / aortic stenosis / hypertrophic obstructive cardiomyopathy
Perindopril, like other ACE inhibitors,should be used with caution in patients with obstruction of the left ventricular outflow tract (aortic stenosis, hypertrophic obstructive cardiomyopathy), as well as in patients with mitral stenosis.
Impaired renal function
Patients with renal insufficiency (KC less than 60 ml / min.) Initial dose of the drug Perindopril are selected depending on the value of the CC (see the section "Dosing and Administration") and then depending on the therapeutic effect. For such patients, a regular control of the concentration of creatinine and the content of potassium in the blood plasma (see section "Side effect").
Arterial hypotension, which sometimes develops early in the administration of ACE inhibitors in patients with symptomatic chronic heart failure, can lead to impaired renal function. It is possible to develop acute renal failure, as a rule, reversible.
In patients with bilateral stenosis of the renal artery or stenosis of the artery of a single kidney (especially in the presence of kidney failure) against the background of therapy with ACE inhibitors, an increase in the concentration of urea and creatinine in the blood plasma, usually taking place when the therapy is withdrawn.The additional presence of reninvascular hypertension causes an increased risk of severe arterial hypotension and kidney failure. Treatment of such patients begins under careful medical supervision with the use of low doses of the drug and further adequate selection of doses. Diuretics should be discontinued and regular monitoring of serum potassium and creatinine levels during the first few weeks of therapy.
In some patients with arterial hypertension, in the presence of previously unrecognized renal failure, especially with the simultaneous use of diuretics, the concentration of urea and creatinine in serum can increase. These changes are usually not very pronounced and are reversible. In such cases, it may be necessary to cancel or reduce the dose of the drug Perindopril and / or diuretic.
The probability of these disorders is higher in patients with a history of renal dysfunction.
Hemodialysis
In patients on hemodialysis using high-permeability membranes (for example, AN69®), several cases of development of persistent, life-threatening anaphylactic reactions were noted.
The use of ACE inhibitors should be avoided when using this type of membrane.
Kidney Transplantation
Data on the use of the drug Perindopril after transplantation, the kidneys are absent.
Hypersensitivity / angioedema
In patients taking ACE inhibitors, in rare cases, especially during the first few weeks of therapy, angioedema may develop in the face, limbs, lips, tongue, vocal folds and / or larynx. In rare cases, severe angioedema may occur with prolonged use of an ACE inhibitor. When these symptoms appear, the use of the drug Perindopril should be immediately discontinued, as a substitute should be used drugs of another pharmacotherapeutic group.
Angioedema, accompanied by swelling of the larynx, can lead to death. Swelling of the tongue, vocal cords, or larynx can lead to airway obstruction. In its development, emergency therapy includes, in addition to other prescriptions,Immediate subcutaneous injection of epinephrine (adrenaline) 1: 1000 (1 mg / ml) 0.3-0.5 ml solution or slow intravenous administration (according to the instructions for preparing the infusion solution) under the control of the electrocardiogram and blood pressure. The patient should be hospitalized for treatment and follow-up for at least 12-24 hours and until the symptoms regress completely.
Patients with a history of observed angioedema not associated with ACE inhibitors, the risk of its development when receiving the drugs in this group (see. The section "Contra ') can be raised.
In rare cases, against the background of therapy with ACE inhibitors, angioedema develops in the intestine. Thus, patients have a pain in the abdomen as an isolated symptom or in combination with nausea and vomiting in some cases without prior angioneurotic edema of the face and at normal enzyme activity C-1 esterase. The diagnosis is established using computed tomography of the abdominal region, ultrasound or at the time of surgery.
Symptoms disappear after stopping the intake of ACE inhibitors. In patients with pain in the abdomen,receiving ACE inhibitors, when making a differential diagnosis, it is necessary to consider the possibility of developing angioedema of the intestine
Anaphylactic reactions in the apheresis of low-density lipoproteins (LDL)
In rare cases in patients receiving ACE inhibitors, during the procedure of apheresis of low density lipoproteins with the help of dextran sulfate may develop life-threatening anaphylactic reactions. To prevent an anaphylactic reaction, therapy with an ACE inhibitor should be temporarily discontinued before each procedure for LDL apheresis using dextran sulfate.
Anaphylactic reactions during desensitization
There are some reports of the development of life-threatening anaphylactic reactions in patients receiving ACE inhibitors during desensitizing therapy with bee venom (bees, wasps). ACE inhibitors should be used with caution in patients with a predisposition to allergic reactions undergoing desensitization procedures. The use of ACE inhibitors in patients receiving immunotherapy with bee venom should be avoided.Nevertheless, this reaction can be avoided by temporary discontinuation of ACE inhibitor prior to the desensitization treatment.
Impaired liver function
Acceptance of ACE inhibitors is sometimes associated with a syndrome that begins with the development of cholestatic jaundice, progressing to fulminant liver necrosis, and (sometimes) fatal. The mechanism of development of this syndrome is unclear. If symptoms of jaundice appear or the activity of liver enzymes increases in patients taking ACE inhibitors, drug therapy should be discontinued and an appropriate examination performed (see "Side effect" section).
Neutropenia / agranulocytosis / thrombocytopenia / anemia
Against the background of therapy with ACE inhibitors, neutropenia / agranulocytosis, thrombocytopenia and anemia can develop. With normal kidney function and no other complications, neutropenia occurs rarely. ACE inhibitors are used only in emergency cases in the presence of systemic vasculitis, immunosuppressive therapy, reception of allopurinol or procainamide, as well as when combining all these factors, especially against the background of previous renal failure.There is a risk of developing severe infectious diseases resistant to intensive antibiotic therapy. When the drug is administered Perindopril in patients with the above factors it is necessary to regularly monitor the number of leukocytes.
Ethnic differences
It should be borne in mind that in patients of the Negroid race the risk of angioedema development is higher. Like other ACE inhibitors, Perindopril It is less effective in reducing blood pressure in patients of the Negroid race.
This effect is probably associated with a marked predominance of low-grade status in patients of the Negroid race with arterial hypertension.
Cough
Against the background of therapy with an ACE inhibitor, a dry, nonproductive cough may occur, which ceases after the drug has been discontinued, this should be taken into account in the differential diagnosis of cough.
Surgery / general anesthesia
The use of ACE inhibitors in patients who are undergoing surgery with general anesthesia can lead to a marked decrease in blood pressure, especially with the use of general anesthetic agents that have antihypertensive effects. Reception of the drug Perindopril must be discontinued one day before surgery. With the development of arterial hypotension, BP should be maintained by replenishing the ODC.
It is necessary to warn the anesthesia doctor that the patient is taking ACE inhibitors.
Hyperkalemia
Hyperkalemia can develop during treatment with ACE inhibitors, especially if the patient has renal and / or heart failure, a latent diabetes mellitus. It is usually not recommended to use potassium preparations, potassium-sparing diuretics and other drugs associated with the risk of increasing the potassium content (eg, heparin), because of the possibility of pronounced hyperkalemia. If joint intake of these drugs is necessary, then therapy should be accompanied by regular monitoring of potassium in the blood serum.
Diabetes
In patients taking hypoglycemic agents for oral administration or insulin, during the first month of therapy with ACE inhibitors, the concentration of glucose in the blood plasma should be monitored regularly (see section "Interaction with other drugs").
Not recommended for use in conjunction with ACE inhibitors ARAII antagonists in patients with diabetic nephropathy.
Lithium preparations
Joint use of the drug Perindopril and lithium preparations is not recommended (see section "Interaction with other drugs").
Potassium-sparing diuretics, potassium preparations, potassium-containing substitutes for edible salt and food additives
Not recommended combined use of ACE inhibitor (see. The section "Interaction with other drugs").
Double blockade of RAAS
Arterial hypotension, fainting, stroke, hyperkalemia and renal dysfunction (including acute renal failure) have been reported in susceptible patients, especially when used with medications that affect this system. Therefore, a double blockade of RAAS due to a combination of an ACE inhibitor with ARAII or aliskiren is not recommended.
The combination with aliskiren is contraindicated in patients with diabetes mellitus or impaired renal function (GFR <60 ml / min / 1.73 m2 body surface area) (see the sections "Contraindications" and "Interaction with other medicinal products").