Background/Aims: This study aims to evaluate potential safety events and vital sign changes during active mobilization physical therapy (PT) in critically ill patients undergoing continuous renal replacement therapy (CRRT). Methods: A retrospective review was performed on 29 patients who were treated with CRRT and who underwent 81 PT sessions in a medical intensive care unit at a single referral hospital; 15 patients underwent 33 sessions with passive range of motion (PROM) and 17 patients underwent 48 active mobilization PT sessions. Three patients received both types of PT including 8 PROM and 5 active mobilization PT sessions. The occurrences of safety events and vital sign changes during active mobilization PT sessions were evaluated. Results: The safety events did not develop during 33 sessions with PROM. However, there were 2 safety events (4.1%) during 48 active mobilization PT sessions including one session with mobilization in the bed and the other in a sitting position on the edge of the bed. These safety events exclusively developed during active mobilization PT sessions, in which concomitant extracorporeal membrane oxygenation (ECMO) support and CRRT were delivered. Regarding vital sign changes during PT sessions, there were no significant differences in systolic blood pressure (BP), diastolic BP, mean arterial pressure, heart rate, respiratory rate, or peripheral oxygen saturation before and after both PROM and active mobilization PT sessions. Conclusions: This study showed that active mobilization PT can be performed safely in patients who are being treated with CRRT without a significant hemodynamic change. However, the development of potential safety events in patients with ECMO needs to be monitored carefully.
Although shock in sepsis is usually managed successfully by conventional medical treatment, a subset of cases do not respond and may require salvage therapies such as veno-arterial extracorporeal membrane oxygenation (VA ECMO) support as well as an attempt to remove endotoxins. However, there are limited reports of attempts to remove endotoxins in patients with septic shock on VA ECMO support. We recently experienced a case of septic shock with severe myocardial injury whose hemodynamic improvement was unsatisfactory despite extracorporeal membrane oxygenation (ECMO) support. Since the cause of sepsis was acute pyelonephritis and blood cultures grew gram-negative bacilli, we additionally applied polymyxin B direct hemoperfusion (PMX-DHP) to the ECMO circuit and were able to successfully taper off vasopressors and wean off ECMO support. To the best of our knowledge, this is the first adult case in which PMX-DHP in addition to ECMO support was successfully utilized in a patient with septic shock. This case indicates that additional PMX-DHP therapy may be beneficial and technically feasible in patients with septic shock with severe myocardial injury refractory to ECMO support.
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