Renal replacement therapy in patients with severe precapillary pulmonary hypertension with acute right heart failure.
BACKGROUND
Renal replacement therapy has been suggested as a therapeutic option in the setting of acute right ventricular failure in patients with severe precapillary pulmonary hypertension. However, there are few data supporting this strategy.


OBJECTIVE
To describe the clinical course and the prognosis of pulmonary hypertensive patients undergoing renal replacement therapy in the setting of acute right heart failure.


METHODS
This was a single-center retrospective study over an 11-year period. Data were collected from all patients with chronic precapillary pulmonary hypertension requiring catecholamine infusions for clinical worsening and acute kidney injury that necessitated renal replacement therapy.


RESULTS
Fourteen patients were included. At admission, patients had a blood urea of 28.2 mmol/l (22.3-41.2), a creatinine level of 496 µmol/l (304-590), and a mean urine output in the 24 h preceding hospitalization of 200 ml (0-650). Sixty-eight renal replacement therapy sessions were performed, 36 of which were continuous and 32 of which were intermittent. Systemic hypotension occurred in 16/32 intermittent and 16/36 continuous sessions (p = 0.9). Two patients died during a continuous session. The intensive care unit-related, 1-, and 3-month mortality was 46.7, 66.7, and 73.3%, respectively.


CONCLUSIONS
Renal replacement therapy is feasible in the setting of acute right ventricular failure in patients with severe precapillary pulmonary hypertension but is associated with a poor prognosis. The best modality and timing in this population remain to be defined.
Réanimation Médicale, Hôpital Antoine Béclère, AP-HP, Clamart, France. benjamin.sztrymf@abc.aphp.fr
Benjamin
B
Sztrymf
Dominique
D
Prat
Frédéric M
FM
Jacobs
François G
FG
Brivet
Dermot S
DS
O'Callaghan
Laura C
LC
Price
Xavier
X
Jais
Olivier
O
Sitbon
Gérald
G
Simonneau
Marc
M
Humbert
D000368:Aged; D005260:Female; D006333:Heart Failure / Q000209:etiology / Q000628:therapy*; D006801:Humans; D006976:Hypertension, Pulmonary / Q000150:complications*; D008297:Male; D008875:Middle Aged; D017582:Renal Replacement Therapy; D012189:Retrospective Studies; D016896:Treatment Outcome