Extracorporeal membrane oxygenation in long-term COVID-19 with severe neutropenia and thrombocytopenia after allogeneic hematopoietic stem cell transplantation: a case report
Hematopoietic stem cell transplantation (HSCT) was associated with potentially life-threatening complications. Among patients supported by extracorporeal membrane oxygenation (ECMO), those who underwent HSCT had a worse prognosis than those who did not. Advances in HSCT and critical care management have improved the prognosis of ECMO-supported HSCT patients.
Case
The patient in the remission stage of lymphoma after 22 months of allogeneic hematopoietic stem cell transplantation, suffered from ARDS, severe neutropenia, thrombocytopenia, and long-term COVID-19. We evaluated the benefits and risks of ECMO for the patient, including the possibility of being free from ECMO, the status of malignancy, the interval from HSCT to ARDS, the function of the graft, the amount of organ failure, and the comorbidities. ECMO was ultimately used to save his life.
Conclusions
We did not advocate for the general use of ECMO in HSCT patients and we believed that highly selected patients, with well-controlled tumors, few comorbidities, and fewer risk factors for death, tended to benefit from ECMO with well ICU management.
Hinweise
Shiqi Guo and Linna Zhang contributed equally to this work.
Publisher’s Note
Springer Nature remains neutral with regard to jurisdictional claims in published maps and institutional affiliations.
Hematopoietic stem cell transplantation (HSCT) was associated with potentially life-threatening complications such as opportunistic infections, graft-versus-host disease (GVHD), and relapse of the underlying disease. The development of acute respiratory distress syndrome (ARDS) is also a huge hit for these patients. The complexity of HSCT and the critical presentation of ARDS made it difficult for these patients to benefit from ECMO therapy [1, 2]. The in-hospital mortality for HSCT patients using ECMO was significantly higher than those who did not receive HSCT [3‐5]. ECMO is a highly technical life-saving intervention, and given the resources required and the practical benefits gained, ECMO was rarely used in patients with HSCT.
However, with post-transplant immune reconstitution and the gradual dose reduction of immunosuppressive drugs [6], the prognosis of patients supported with ECMO in late period of HSCT were better than those in early period of HSCT [4, 7]. The improving outcomes observed in the study suggested that highly selected HSCT patients may benefit from ECMO. Recently, an expert consensus on ECMO therapy in patients with HSCT stated that HSCT was not an absolute contraindication to ECMO and give suggestions for refining ECMO selection criteria and management in patients receiving HSCT [8]. Based on this, we successfully treated an allo-HSCT patient with ARDS on ECMO.
Anzeige
We searched PubMed with the following terms ‘HSCT + ECMO’ but did not find relevant research or report after the expert consensus. Thus, we decided to report this case to give reference for clinical practice and call for systematic research.
Case presentation
A 38-year-old man was transferred to this hospital because of severe cough and breathlessness worsened progressively for one week. On December 16, 2022, it was confirmed that he infected with Severe Acute Respiratory Syndrome Coronavirus-2 (SARS-CoV-2) for the first time. Although treatments with Nematovir/ritonavir (3 weeks totally), Azovudine (2 weeks totally), and Molnupiravir (4 weeks totally) were administered, the nucleic acid test for SARS-CoV-2 remained positive consistently. The patient suffered from lymphoma for 5 years, and underwent allogeneic hematopoietic stem cell transplantation (allo-HSCT) 22 months ago, achieving complete remission and took tacrolimus for 16 months as well as methylprednisolone for 6 months after allo-HSCT. On admission, this patient was received oxygen through a non-invasive ventilation (NIV), with positive end-expiratory pressure (PEEP) of 8 cm of water and fraction of inspired oxygen (FiO2) of 0.5. His temperature was 38.5℃, with the blood pressure of 85/50 mmHg, the heart rate of 110 beats/minute, and the oxygen saturation of 89%. Both lungs were heard pronounced wet rales. Arterial blood gas (ABG) analysis showed PaO2 at 55 mmHg, with a PaO2/FiO2 ratio (PFR) of 110 mmHg and lactate levels at 2.16 mmol/L; NT-proBNP and procalcitonin (PCT) levels were 72 pg/ml (< 125 pg/ml) and 4.65 ng/ml (< 0.046 ng/ml), respectively. In conjunction with the chest radiographs (Fig. 1B) at the time of admission, diagnosis included ARDS and long-term COVID-19. For no improving of the dyspnea and hypoxia within a span of two hours NIV, invasive mechanical ventilation (IMV) was initiated. Subsequent results from next-generation sequencing (NGS) on bronchoalveolar lavage indicated the presence of SARS-CoV-2. We did not use wonder anti-SARS-CoV-2 drugs, but methylprednisolone (80 mg for 3 days followed with 40 mg for 2 days) was used to suppress the excessive inflammatory response, and gamma globulin (20 g for 5 days) was used to assist in anti-infection and immunomodulation. Despite giving prone positioning and applying high PEEP of 15 cm H2O, PFR remained below 80 mmHg more than 6 h. In subsequent chest X-rays, there was a noticeable progression in the extent of pneumonia compared to admission (Fig. 1C). Catheters (right femoral vein: 21F, right internal jugular vein: 17F) for veno-venous extracorporeal membrane oxygenation (V-V ECMO) were inserted. Unfractionated heparin was used for anticoagulation, maintaining activated partial thromboplastin time (APTT) at 50–60 s. on day 2. The ECMO settings included a blood flow rate of 4.5 L/min and an oxygen flow rate of 5 L/min. This was accompanied by continued invasive ventilation using the volume-controlled mode with a PEEP of 10 cm H2O, FiO2 0.6, a tidal volume of 280 ml, and a respiratory rate of 10 breaths/minute. The patient was also placed in the prone position for 16 h daily. Human Granulocyte Colony-stimulating Factor Injection (300ug, once a day, from day 3 to day 17), Recombinant Human Granulocyte/Macrophage Colony-stimulating Factor for Injection(300ug, once a day, from day 7 to day 17), Recombinant Human Thrombopoietin Injection (15000ug, once a day, from day 17 to day 27) and Herombopag Olamine Tablets (10 mg, once a day, from day 10 to day 28) were used due to the onset of neutropenia (with a nadir of 0.19 × 109/L on day 6) and thrombocytopenia (with a minimum value of 22 × 109/L on day 7). A total of 12 standard therapeutic doses of platelets, 4875 ml of plasma and 23.5 units of concentrated red blood cells were transfused during the hospitalization. On day 11, after short suspension of ECMO support and ramping up the ventilator support, PFR remained more than 250 mmHg for 2 h, ECMO was weaned off successfully. SARS-CoV-2 was negative after admission 15 days, and granulocytopenia and thrombocytopenia gradually recovered on day 11 and day 16 respectively. On day 29, he was free from IMV and transitioned to high-flow nasal cannula oxygen therapy and discharged on day 45.
×
Discussion and conclusions
In this case, the patient in the remission stage of lymphoma after 22 months of transplantation, suffered from ARDS, severe neutropenia, thrombocytopenia, and long-term COVID-19. Kochanek and Hermann et al. concluded that platelet count is a major determinant of adverse prognosis on ECMO [9, 10]. DiNardo et al. also suggested in an expert consensus that ECMO should not be used in patients with platelets < 20*109/L [8]. In the case we reported, the patient had thrombocytopenia and the platelet count prior to ECMO initiation was 31*109/L. After communication with the patient's family, the decision was finally made to initiate ECMO, with platelet transfusion. In addition, for this thrombocytopenic patient, unfractionated heparin was used for anticoagulation. We tested his APTT to ensure that it was maintained at 50–60 s. This patient had no thrombotic or bleeding events during treatment.
Both ICU admissions and ECMO initiation increased during the COVID-19 epidemic [11, 12]. The experience with ECMO during the COVID-19 period remained valuable, including the timing of ECMO initiation and cessation, prognostic risk factors, and increased public awareness of ECMO. Furthermore, ECMO is not contraindicated in HSCT patients with COVID-19-induced ARDS. These experiences made potentially life-saving interventions available to HSCT patients, provided a reference for expected outcomes in HSCT patients, and guided decision making about ECMO.
Anzeige
DiNardo et al. summarized the clinical characteristics of HSCT patients must be concerned before receiving ECMO in an expert consensus, including the possibility of been free from ECMO, the status of malignancy, type of HSCT, the interval from HSCT to ARDS, GVDH prophylaxis and treatment, the function of the graft, the amount of organ failure, and the comorbidities [8]. Barbaro et al. also emphasized that mortality in ECMO patients was related to patient selection and patient treatment [12]. We did not recommend the general use of ECMO in HSCT patients. We believed that only highly selected patients, with well-controlled tumors, few comorbidities, and fewer risk factors for death, tended to benefit from ECMO with rigorous evaluation of indications and proper ICU management.
Acknowledgements
NA.
Declarations
Ethics approval and consent to participate
All protocols in this study have been approved by the ethics committee of the Dushu Lake Hospital Affiliated to Soochow University and have been performed in accordance with the ethical standards laid down in the 1964 Declaration of Helsinki and its later amendments.
Informed consent was obtained from this patient for being included in the study.
Consent for publication
The patient provided written informed consent for publication of the case report and accompanying images.
Competing interests
The authors declare no competing interests.
Open Access This article is licensed under a Creative Commons Attribution 4.0 International License, which permits use, sharing, adaptation, distribution and reproduction in any medium or format, as long as you give appropriate credit to the original author(s) and the source, provide a link to the Creative Commons licence, and indicate if changes were made. The images or other third party material in this article are included in the article's Creative Commons licence, unless indicated otherwise in a credit line to the material. If material is not included in the article's Creative Commons licence and your intended use is not permitted by statutory regulation or exceeds the permitted use, you will need to obtain permission directly from the copyright holder. To view a copy of this licence, visit http://creativecommons.org/licenses/by/4.0/. The Creative Commons Public Domain Dedication waiver (http://creativecommons.org/publicdomain/zero/1.0/) applies to the data made available in this article, unless otherwise stated in a credit line to the data.
Publisher’s Note
Springer Nature remains neutral with regard to jurisdictional claims in published maps and institutional affiliations.
Extracorporeal membrane oxygenation in long-term COVID-19 with severe neutropenia and thrombocytopenia after allogeneic hematopoietic stem cell transplantation: a case report
verfasst von
Shiqi Guo Linna Zhang Chang Gao Xiaoting Lu Wei Song Hui Shen Qiang Guo
„Kalte“ Tumoren werden heiß – CD28-kostimulatorische Antikörper sollen dies ermöglichen. Am besten könnten diese in Kombination mit BiTEs und Checkpointhemmern wirken. Erste klinische Studien laufen bereits.
Eine perioperative Therapie mit Nivolumab reduziert das Risiko für Rezidive und Todesfälle bei operablem NSCLC im Vergleich zu einer alleinigen neoadjuvanten Chemotherapie um über 40%. Darauf deuten die Resultate der Phase-3-Studie CheckMate 77T.
Immunchemischer Stuhltest positiv, Koloskopie negativ – in solchen Fällen kann die Blutungsquelle auch weiter proximal sitzen. Ein Forschungsteam hat nachgesehen, wie häufig und in welchen Lokalisationen das der Fall ist.
Möglicherweise hängt es von der Art der Diabetesmedikamente ab, wie hoch das Risiko der Betroffenen ist, dass sich sehkraftgefährdende Komplikationen verschlimmern.
Update Innere Medizin
Bestellen Sie unseren Fach-Newsletter und bleiben Sie gut informiert.