Haemodynamic remission and transition off epoprostenol after upfront triple therapy in PAH.
Ogo Takeshi T, Hayashi Hiroya H, Takano Ryo R, Fujisaki Shinya S et al.
Actelion · PTGIR · Small Molecule
epoprostenol is a small molecule developed by Actelion. It is approved for therapeutic indications via injectable (others) or intravenous (iv).
| Brand Names | Caripul |
| Company | Actelion |
| Drug Class | Small Molecule |
| Molecular Target | PTGIR |
| Route | Injectable (Others), Intravenous (IV) |
| Status | Approved |
epoprostenol acts on 1 molecular target:
| PTGIR | prostaglandin I2 receptor (IP, PRIPR) |
epoprostenol is developed for 1 unique indication across 1 therapeutic area.
| Therapeutic Area | Condition | Phase |
|---|---|---|
| Respiratory, thoracic and mediastinal disorders | Pulmonary hypertension | ✓ Approved |
Ogo Takeshi T, Hayashi Hiroya H, Takano Ryo R, Fujisaki Shinya S et al.
Li Yuanteng Jeff YJ, Buni Maryam M, Tayar Jean H JH, Lu Huifang H et al.
Although immune checkpoint inhibitors (ICIs) have improved oncological outcomes, they can cause a myriad of inflammatory conditions known as immune-related adverse events (irAEs). Raynaud's phenomenon (RP) is a rare rheumatologic irAE that may arise de novo or present as an exacerbation of preexisting disease. This case series aims to describe ICI-induced RP in patients without a rheumatological diagnosis seen at a large, specialized cancer center. Our case series describes five patients with ICI-induced RP who were evaluated by rheumatology at a cancer center during the past 3 years where their cancers, type of ICIs, diagnostic tests, and treatments are discussed in detail. Among our five patients, one patient had preexisting psoriatic arthritis, and one had preexisting RP. The outcome of our patients' ICI-induced RP varied widely. Although three patients had significant digital ischemia resulting in ulceration requiring epoprostenol infusions, the remaining two patients had mild digital ischemia that were controlled conservatively. However, none of our patients had clinical features to suggest systemic sclerosis (SSc), where RP is often the first symptom. Interestingly, interferon-γ and interleukin-6 were the most frequently elevated cytokines when checked in these patients. This is the first case series, to the authors' knowledge, to describe ICI-induced RP, which may occur without other clinical features of an autoimmune rheumatological disease. The severity of the disease may vary, but it warrants increased awareness and prompt initiation of appropriate treatment.
Eyduran Eda E, İyi Duygu D, Aslan Ayşen Durak AD, Huseyinova Ulkar U et al.
Acute kidney injury (AKI) is a significant complication in pediatric liver transplant (LT) patients. This is often exacerbated by liver dysfunction, fluid overload, and metabolic disturbances. Intraoperative continuous kidney replacement therapy (IO-CKRT) is an emerging strategy to manage these complex patients, aiming to stabilize fluid, electrolyte, and acid-base imbalances. Epoprostenol is utilized as an anticoagulant during CKRT to maintain circuit patency, particularly in patients at high risk of bleeding by inhibiting platelet aggregation. However, the use of IO-CKRT with epoprostenol specifically in pediatric LT recipients is poorly documented. We present a case of a 12 year-old girl with biliary atresia and cirrhosis who underwent urgent LT from a deceased donor. She developed hemorrhagic shock and multi-organ failure, necessitating pre-transplant plasmapheresis and subsequent CKRT with epoprostenol. IO-CKRT was maintained during the 12 h LT to manage acid-base balance, electrolyte levels, and volume status. Despite epoprostenol anticoagulation for hemofiltration, no abnormal bleeding occurred in the gastrointestinal or surgical areas during transplantation. Post-transplantation, the patient's inotropic support requirements decreased within 24 h. IO-CKRT effectively achieves fluid and metabolic balance during LT in pediatric patients with AKI, fluid overload, and metabolic issues. Epoprostenol proves to be a safe and effective regional anticoagulation option for CKRT in bleeding patients undergoing LT, preventing site bleeding without systemic complications. This case highlights a unique and important application that warrants further investigation into its broader effectiveness and potential complications in this vulnerable patient population.
Tan Li H LH, Paul Eldho E, Simpson Alex A, Marasco Silvana S et al.
To determine the documentation of right ventricular dysfunction (RVD) in mechanically ventilated patients receiving a noradrenaline infusion, and to assess the association with in-hospital mortality, length of stay (LOS) and treatment intensity. This single-centre, retrospective, observational cohort study included patients admitted to the intensive care unit (ICU) between January 2020 and December 2023, with elevated serum lactate levels, who received invasive mechanical ventilation and an intravenous noradrenaline infusion, within the first 7 days. Exposure was defined on the basis of documentation of RVD in the medical record; e.g. those with RVD vs those without RVD. The primary outcome was in-hospital mortality. Secondary outcomes included ICU mortality, ICU and hospital LOS, organ support modalities, and the utilisation of echocardiography. Comparison between groups utilised logistic and linear regression models. Of 1234 patients included in the study, 273 had documented RVD (22.1%). There was no difference in crude in-hospital mortality (RVD, 24.9% vs no RVD, 23.6% p = 0.66) between groups. Risk-adjusted in-hospital (odds ratio [OR]: 1.65: 1.13-2.41, p = 0.01) and ICU mortality (OR: 1.88: 1.26-2.81, p = 0.002) were greater in those with documented RVD. Median ICU (13.4 vs 10.2 days, p = 0.001) and hospital (25.1 vs 22.5 days, p = 0.002) LOS were significantly longer in the RVD group. A greater number of interventions were provided in those with RVD, including: inhaled nitric oxide (39.6% vs 7.8%, p < 0.001), epoprostenol (1.8% vs 0.1%, p < 0.001), milrinone infusion (77.3% vs 23.6%, p < 0.001), continuous renal replacement therapy (48.7% vs 25.8%, p < 0.001), and extracorporeal membrane oxygenation (33.7% vs 10.4%, p < 0.001). The median number of transthoracic (TTE) or transoesophageal echocardiography (TOE) was 3 (interquartile range [IQR]: 1-4) in those with RVD, compared to 1 (IQR: 1-2) in those without RVD (p < 0.001). Approximately 1 in 4 patients who were mechanically ventilated and receiving noradrenaline had documented RVD, which was associated with a higher risk-adjusted in-hospital mortality, longer LOS, and greater treatment intensity.
Giese Noah N, Safdar Zeenat Z, Mulumudi Anisha A, Momin Sarah S et al.
Pulmonary arterial hypertension (PAH), a progressive disease, is characterized by increased pulmonary vascular resistance (PVR) and leads to right ventricular failure and premature death. PAH therapies aim to reduce PVR; however, these treatments as vasodilators may also result in reduced systemic vascular resistance and mean arterial pressure (MAP), leading to clinical or symptomatic hypotension. Low MAP can limit the administration of optimal dosage of PAH drugs. Midodrine, an oral alpha-1 adrenergic agonist, as a promising intervention, can potentially increase mean MAP and improve tolerance to PAH therapies. Does the use of midodrine improve MAP and allow for simultaneous uptitration of PAH therapy while hospitalized? A retrospective analysis of 433 patients treated at Houston Methodist Lung Center was undertaken between January 2005 and September 2022. Of these, 57 patients were prescribed midodrine during their hospital stay. We matched 57 patients 1:1 with propensity score matching between patients with PAH not given midodrine (control patients) based on age, sex, World Health Organization functional class, B-type natriuretic peptide, and 6-minute walk distance. Among hospitalized patients with PAH, those receiving midodrine were more likely to undergo uptitration of their PAH medications compared with those not receiving midodrine (n = 30 vs n = 17, respectively; P < .05). Patients on midodrine during hospitalization received higher doses of epoprostenol (P < .001), treprostinil (P < .05), and selexipag (P < .05). Additionally, no adverse effects attributable to midodrine were reported. This study, to our knowledge the first large-scale analysis of PAH data, investigated the use of midodrine in hospitalized patients with PAH. In this single-center study, we share real-world experience of using midodrine to mitigate systemic hypotension, thereby facilitating the uptitration of PAH-targeted therapies.
Bhatt Prashant R PR, Gupta Ashish A, Ray Anuva A, Sharma Ashutosh A et al.
Pulmonary hypertension (PH) is a progressive disorder associated with substantial morbidity and mortality, and its diagnosis may be delayed in older adults with multiple cardiopulmonary comorbidities because symptoms frequently overlap with more common cardiovascular and pulmonary conditions. Combined post- and pre-capillary pulmonary hypertension (CpcPH) is a severe phenotype characterized by pulmonary vascular remodeling superimposed on elevated left-sided filling pressures and is associated with worse outcomes than isolated post-capillary PH. We report the case of a 77-year-old man with chronic hypoxic respiratory failure, heart failure with preserved ejection fraction (HFpEF), chronic atrial fibrillation, coronary artery disease, and obstructive sleep apnea who presented with progressive exertional dyspnea, syncope, and increasing oxygen requirements. His symptoms were initially attributed to HFpEF and coexisting cardiopulmonary conditions. Serial transthoracic echocardiography demonstrated progressive right ventricular enlargement, worsening right ventricular systolic function, interventricular septal flattening, and progressively increasing right ventricular systolic pressure (RVSP) from 46.6 to 87 mmHg. Right heart catheterization confirmed severe combined post- and pre-capillary pulmonary hypertension with a pulmonary capillary wedge pressure of 16 mmHg and pulmonary vascular resistance of 10.7 Wood units. Comprehensive evaluation excluded alternative causes of pre-capillary pulmonary hypertension. Because the severity of pulmonary vascular disease appeared disproportionate to isolated HFpEF-related pulmonary hypertension, the patient underwent multidisciplinary evaluation at a specialized pulmonary hypertension center, where an individualized treatment strategy with intravenous epoprostenol and sildenafil was initiated, resulting in improvement in functional status and oxygen requirements during hospitalization. This case highlights the diagnostic challenges of CpcPH in patients with HFpEF and multiple cardiopulmonary comorbidities. Progressive right ventricular remodeling, syncope, and worsening oxygen requirements should prompt consideration of pulmonary hypertension when clinical deterioration appears disproportionate to the underlying cardiopulmonary disease. Early recognition, serial echocardiographic assessment, timely right heart catheterization, and referral to specialized pulmonary hypertension centers are essential for establishing an accurate diagnosis and guiding individualized management.
+1223 more articles available with a free account
Sign up free to view all articles →