Skip to main content

Emergency management of incidental pulmonary embolism (IPE)

A Correction to this article was published on 05 August 2022

This article has been updated

Abstract

Venous thrombo-embolic (VTE) disease is a common cause of complications in patients with cancer and is the second most common cause of death in oncology patients other than the malignant disease. Whilst symptomatic VTE comprises the majority of such presentations to an emergency department (ED), incidental pulmonary embolism (IPE) is an increasingly frequent reason for attendance.

Many studies report that the consequences of IPE do not differ significantly from those with symptomatic presentations and thus most guidelines recommend using the same approach. The complexity of treatment in cancer patients due to increased prevalence of co-morbidities, higher risk of bleeding, abnormal platelet and renal function, greater risk of VTE recurrence, and medications with the risk of anticoagulant interaction are consistent across patients with symptomatic and IPE.

One of the initial challenges of the management of IPE is the design of a pathway that provides both patients and clinicians with a seamless journey from the radiological diagnosis of IPE to their initial clinical workup and management. Increased access to ambulatory care has successfully reduced ED utilisation and improved clinical outcomes in high-risk non-oncological populations, such as those with IPE.

In this clinical review, we consider IPE management, its workup, the conundrums it may present for emergency physicians and the need to consider emergency ambulatory care for this growing cohort of patients.

Introduction

Venous thrombo-embolic (VTE) disease is a common cause of complications in patients with cancer and is the second most common cause of death in oncology patients other than the malignant disease [1, 2]. Symptoms potentially consistent with pulmonary embolism (PE) and deep vein thrombosis (DVT) are frequently encountered in cancer patients. Improved cancer outcomes, alongside therapies such as immune checkpoint inhibition that increase the risk of thrombotic complications [3, 4], means that the burden of thrombo-embolic disease in this cohort will continue to form a significant workload for those working in oncologic emergency medicine.

Co-ordination of radiology, oncology, and emergency medicine can be challenging and practice can vary significantly between healthcare settings. Whilst symptomatic VTE comprises the majority of such presentations to an emergency department (ED), incidental pulmonary embolism (IPE) is an increasingly frequent reason for attendance in the context of the growing use of CT scanning. In this clinical review, we consider the management of IPE, its workup, the conundrums it may present for emergency physicians, and the need to consider emergency ambulatory care for this cohort of patients.

Definition/incidence

IPE is defined as an unsuspected filling defect in the pulmonary arteries identified on CT imaging performed for another indication, usually a routine staging scan to assess cancer disease status [5]. The patient is usually asymptomatic, although in some cases following detection, history taking will identify symptoms consistent with PE.

Multidetector CT scanners can provide good visualisation of the pulmonary arteries up to the subsegmental level and significantly increase detection of VTE [6]. The reported prevalence of IPE varies from 1.6 to 7.3% [7, 8]. In a recent systematic review, the median reported incidence of IPE was 3.36% with a wide range according to the underlying primary tumour [9].

Clinical workup in the emergency department

In patients presenting to the ED with IPE, much of the traditional initial diagnostic workup could be perceived as being redundant and critical elements in the patient history must be documented. A proportion of patients will have some symptoms potentially attributable to PE and had chosen not to have them medically evaluated. Commonly mild overlapping symptoms may be potentially secondary to VTE and other concomitant conditions in the setting of patients with cancer (see Table 1).

Table 1 Common symptoms and underlying conditions in patients with cancer that may contribute to misdiagnose VTE

Assessing for symptoms of upper and lower limb DVT is essential. Establishing the current cancer stage, presence of cerebral metastases, previous VTE, previous significant bleeding or risk of bleeding, concurrent medications, and patient concerns regarding VTE development are necessary.

Clinical examination should focus on assessment of haemodynamic stability, respiratory compromise, and potential thrombotic sources. Exertional oxygen saturations should be measured [10]. Upper and lower limbs should be carefully examined for signs of DVT alongside exit sites of any indwelling catheters.

An electrocardiogram (ECG) should be performed as a minimum, but ideally a focused echocardiogram evaluating right ventricular function is completed [11]. Right ventricular function can be impaired due to increased afterload from a high-risk PE potentially leading to haemodynamic collapse. Point of care Doppler ultrasound could also be performed in the ED to assess for a peripheral DVT especially in patients with an isolated subsegmental PE [12].

In order to help determine the most appropriate anticoagulation strategy for IPE, blood counts assessing haemoglobin and platelet levels alongside renal and liver function need to be undertaken. Thrombocytopenia and impaired renal function are common in a cancer patient undergoing anti-cancer therapies and anticoagulation should be personalised if these are present. Troponin levels should be measured as a prognostic marker, and those with elevated levels should be treated as intermediate-high risk and considered for inpatient hospital observation and further management [13].

Anticoagulation strategy in IPE

The complexity of treatment in cancer patients due to increased prevalence of co-morbidities, higher risk of bleeding, abnormal platelet and renal function, greater risk of VTE recurrence, and medications with the risk of anticoagulant interaction are consistent across patients with symptomatic and IPE. Many studies report that the consequences of IPE do not differ significantly from those with symptomatic presentations and thus most guidelines recommend using the same approach [14, 15]. Similar rates of recurrent VTE, major bleeding, and mortality have been reported in patients with symptomatic and IPE in several retrospective and observational studies [16,17,18]. However, a recent meta-analysis of 23 studies found that patients with IPE had lower rates of VTE recurrence at 6 months, with a trend towards higher incidence of major bleeding but no difference in mortality compared to those with symptomatic PE [19].

In a pooled analysis of 926 patients with IPE from 11 cohorts, at 6 months, the rate of recurrent VTE was 5.8%, major haemorrhage was 4.7% and mortality rate of 37% [20]. An international observational registry study of 695 IPE patients at 12 months reported these rates were 6%, 5.7% and 43% respectively [17]. The RIETE registry found that patients treated with anticoagulation for IPE had lower 90-day PE-related mortality than those with symptomatic presentations [21]. Proximal PE forms a significant proportion of IPE presentations with a reported prevalence of central IPE in the ED ranging from 23 to 65% [22].

The management of subsegmental PE in particular remains controversial. Although there is growing evidence that not anticoagulating patients with subsegmental PE is a safe approach, the data is mainly from patients without malignancy [23, 24]. One study of cancer patients reported that whilst symptomatic PE showed better survival with anticoagulation, anticoagulation did not result in significant survival benefit in IPE. Subgroup analysis showed significant improvement in survival with anticoagulation in proximal IPE but not in patients with distal IPE [25]. The current American Society of Clinical Oncology (ASCO) and American Society for Hematology (ASH) guidelines recommend treating incidental subsegmental pulmonary embolism on an individual case basis [26, 27].

Multiple landmark studies have demonstrated the non-inferiority of direct oral anticoagulants (DOACs) compared with LMWH in the management of cancer-related VTE. These include the SELECT-D trial [28], ADAM VTE study [29], and those performed by the Hokusai-VTE and Caravaggio investigators [30, 31].

Sub-analysis of the 331 patients with IPE in the Hokusai-VTE cancer study reported similar mortality rates to those with symptomatic PE, supporting current guidelines for the same management of the two presentations [32]. However, sub-analysis of the 232 patients of IPE in the Caravaggio study had lower rates of recurrent VTE but higher levels of major bleeding compared to those with symptomatic PE. Comparison of apixaban to dalteparin in the management of patients with symptomatic PE and IPE showed the hazard ratio for recurrence was 0.73 and 0.41, respectively, and for major bleeding 0.93 and 0.96, respectively [33].

In the ED, short-term treatment with low molecular weight heparin (LMWH) may be an appropriate strategy. This provides safe management of the IPE and enables long-term approaches to be determined subsequently by treating oncologists and haematologists who will have access to more clinical information and can determine a personalised management plan.

Risk stratification in patients with IPE

Following the diagnosis of an acute PE, patients undergo assessment for the risk of complications and several scoring systems have been validated to identify low-risk patients who can be managed in an outpatient ambulatory setting [34, 35]. PESI (Pulmonary Embolism Severity Index) and simplified PESI, the two most validated clinical-physiological risk scoring systems, consider patients with cancer not to be low risk [37]. However, the outcomes related to PE in these patients are difficult to distinguish from the underlying malignancy. Therefore, several risk stratification models for cancer patients with PE have been developed but none is specifically focused on those with IPE (see Table 2) [37,37,38,39,40].

Table 2 Risk assessment models developed for cancer-related pulmonary embolism

The EPIPHANY index, which was derived from a registry of symptomatic and IPE patients in 14 Spanish hospitals, stratifies patients into low, intermediate, or high risk of complications within 15 days of diagnosis [39, 40]. This index uses six variables (Hestia-like clinical decision rule, Eastern Cooperative Group (ECOG) performance scale, oxygen saturation, presence of PEspecific symptoms, tumour response, and primary tumour resection). It has been validated in an external study of 258 IPE patients presenting to EDs [41]. This index may be a useful adjunct in the risk stratification of cancer patients with IPE.

A study of IPE patients managed through the ED of the MD Anderson Cancer Center in Texas reported that in the absence of saddle PE, hypoxaemia and significant co-morbidities, these patients could be considered for ambulatory outpatient management with LMWH therapy [42]. A prognostic score incorporating performance status and the presence of new or worsening symptoms at the time of IPE diagnosis, with and without considering the presence of incurable malignancy, correlated with overall survival and early mortality in patients with IPE [43]. Analysis of a registry of 695 IPE patients found that respiratory symptoms within 14 days of the presentation and the ECOG performance status were the most consistent predictors of mortality [44].

Pathways and ambulatory emergency management of IPE

One of the initial challenges of the IPE management is the design of a pathway that provides both patients and clinicians with a seamless journey from the radiological diagnosis of IPE to their initial clinical workup and management. This will vary across acute care systems due to the heterogeneity of design but needs to be carefully considered and implemented in each setting (see Fig. 1).

Fig. 1
figure 1

Proposed algorithm for the evaluation of patients with IPE

Emergency care systems face a challenge of increasing demand on a backdrop of fixed resources for inpatient care [45]. Patients with cancer seeking emergency care generally have longer lengths of stay, higher admission rates, and higher mortality than non-cancer patients [46]. Ambulatory care is increasingly recognised as an essential component in the delivery of safe and sustainable emergency care. It aims to reduce the pressures and risks of ED overcrowding, which have been highlighted by the COVID-19 pandemic [47]. Increased access to ambulatory care has successfully reduced ED utilisation and improved clinical outcomes in high-risk non-oncological populations, such as those with PE [48].

The fundamental basis for ambulatory care is that patients presenting with acute illnesses can be stratified as low risk for developing complications and therefore do not require traditional inpatient care. Several models have been adapted to deliver this care including hospital at home, ambulatory care units, and observation units [45, 49].

Individualised management of emergency cancer presentations is a key challenge for oncologic emergency medicine. This requires collaboration and innovative development of models and services that facilitate this care. An increasing number of oncologic emergency medicine presentations, such as IPE, can be risk assessed for care in this setting [50, 51].

The distress of cancer-associated thrombosis can be significant and ameliorated by access to specialist services, information, and support [52]. Well-designed ambulatory emergency pathways for IPE will thus improve clinical outcomes, reduce pressure on overcrowded services, and help reduce the patient’s psychological burden due to IPE.

Change history

References

  1. Khorana AA, Francis CW, Culakova E, et al. Thromboembolism is a leading cause of death in cancer patients receiving outpatient chemotherapy. J Thromb Haemost. 2007;5(3):632–4. https://doi.org/10.1111/j.1538-7836.2007.02374.x.

    Article  CAS  PubMed  Google Scholar 

  2. Fernandes C, Morinaga L, Alves J, et al. Cancer-associated thrombosis: the when, how and why. Eur Respir Rev. 2019;28(151):180119. https://doi.org/10.1183/16000617.0119-2018.

    Article  PubMed  Google Scholar 

  3. Sussman TA, Li H, Hobbs B, Funchain P, McCrae KR, Khorana AA. Incidence of thromboembolism in patients with melanoma on immune checkpoint inhibitor therapy and its adverse association with survival. J Immunother Cancer. 2021;9(1):e001719. https://doi.org/10.1136/jitc-2020-001719.

    Article  PubMed  PubMed Central  Google Scholar 

  4. Gong J, Drobni Z, Alvi R, et al. Immune checkpoint inhibitors for cancer and venous thromboembolic events. Eur J Cancer. 2021;158:99–110. https://doi.org/10.1016/j.ejca.2021.09.010.

    Article  CAS  PubMed  Google Scholar 

  5. Klok F, Huisman MV. Management of incidental pulmonary embolism. Eur Respir J. 2017;49(6):1700275. https://doi.org/10.1183/13993003.00275-2017.

    Article  PubMed  Google Scholar 

  6. Den Exter P, van der Hulle T, Hartmann I, et al. Reliability of diagnosing incidental pulmonary embolism in cancer patients. Thromb Res. 2015;136(3):531–4. https://doi.org/10.1016/j.thromres.2015.06.027.

    Article  CAS  Google Scholar 

  7. Bach AG, Schmoll HJ, Beckel C, Behrmann C, Spielmann RP, Wienke A, Abbas J, Surov A. Pulmonary embolism in oncologic patients: frequency and embolus burden of symptomatic and unsuspected events. Acta Radiol. 2014;55(1):45–53. https://doi.org/10.1177/0284185113491569.

    Article  PubMed  Google Scholar 

  8. Myat Moe MM, Redla S. Incidental pulmonary embolism in oncology patients with current macroscopic malignancy: incidence in different tumour type and impact of delayed treatment on survival outcome. Br J Radiol. 2018;91:20170806.

    Article  Google Scholar 

  9. Meyer HJ, Wienke A, Surov A. Incidental pulmonary embolism in oncologic patients-a systematic review and meta-analysis. Support Care Cancer. 2021;29(3):1293–302. https://doi.org/10.1007/s00520-020-05601-y.

    Article  PubMed  Google Scholar 

  10. Amin Q, Perry JJ, Stiell IG, Mohapatra S, Alsadoon A, Rodger M. Ambulatory vital signs in the workup of pulmonary embolism using a standardized 3-minute walk test. CJEM. 2015;17(3):270–8. https://doi.org/10.1017/cem.2014.45.

    Article  PubMed  Google Scholar 

  11. Walker H, Short N. Point-of-care screening echocardiograms and their potential utility in the acute inpatient medical setting. Acute Med. 2020;19(4):201–8. https://doi.org/10.52964/AMJA.0828.

    Article  CAS  PubMed  Google Scholar 

  12. Di Nisio M, Lee A. Y. Y, Carrier M et al. for the Subcommittee on Hemostasis and Malignancy. Diagnosis and treatment of the incidental venous thrombosis in cancer patients: guidance from the SSC of the ISTH. J Thromb Haemost. 2015;13:880–3.

  13. Kucher N, Wallmann D, Carone A, Windecker S, Meier B, Hess OM. Incremental prognostic value of Troponin I and echocardiography in patients with acute pulmonary embolism. Eur Heart J. 2003;24(18):1651–6. https://doi.org/10.1016/S0195-668X(03)00394-4.

    Article  PubMed  Google Scholar 

  14. Kearon C, Akl EA, Comerota AJ, Prandoni P, Bounameaux H, Goldhaber SZ, Nelson ME, Wells PS, Gould MK, Dentali F, Crowther M, Kahn SR. Antithrombotic therapy for VTE disease: antithrombotic therapy and prevention of thrombosis, 9th ed: American College of Chest Physicians Evidence-Based Clinical Practice Guidelines. Chest. 2012;141(2 Suppl):e419S–96S. https://doi.org/10.1378/chest.11-2301.

    Article  CAS  PubMed  PubMed Central  Google Scholar 

  15. den Exter PL, Hooijer J, Dekkers O, et al. Risk of recurrent venous thromboembolism and mortality in patients with cancer incidentally diagnosed with pulmonary embolism: a comparison with symptomatic patients. J Clin Oncol. 2011;29(17):2405–9. https://doi.org/10.1200/JCO.2010.34.0984.

    Article  Google Scholar 

  16. Qdaisat A, Kamal M, Al-Breiki A, et al. Clinical characteristics, management and outcome of incidental pulmonary embolism in cancer patients. Blood Adv. 2020;4(8):1606–14. https://doi.org/10.1182/bloodadvances.2020001501.

    Article  PubMed  PubMed Central  Google Scholar 

  17. Kraaijpoel N, Bleker S, Meyer G, et al. Treatment and long-term clinical outcomes of incidental pulmonary embolism in patients with cancer: an international prospective cohort study. J Clin Onc. 2019;37(20):1713–20. https://doi.org/10.1200/JCO.18.01977.

    Article  CAS  Google Scholar 

  18. Khorana AA, O'Connell C, Agnelli G, et al. Incidental venous thromboembolism in oncology patients. J Thromb Haemost. 2012;10(12):2602–4. https://doi.org/10.1111/jth.12023.

    Article  CAS  PubMed  PubMed Central  Google Scholar 

  19. Caiano L, Carrier M, Marshall A, Young AM, Ageno W, Delluc A, Wang TF. Outcomes among patients with cancer and incidental or symptomatic venous thromboembolism: a systematic review and meta-analysis. J Thromb Haemost. 2021;19(10):2468–79. https://doi.org/10.1111/jth.15435.

    Article  PubMed  Google Scholar 

  20. van der Hulle T, den Exter PL, Planquette B, Meyer G, Soler S, Monreal M, Jiménez D, Portillo AK, O'Connell C, Liebman HA, Shteinberg M, Adir Y, Tiseo M, Bersanelli M, Abdel-Razeq HN, Mansour AH, Donnelly OG, Radhakrishna G, Ramasamy S, Bozas G, Maraveyas A, Shinagare AB, Hatabu H, Nishino M, Huisman MV, Klok FA. Risk of recurrent venous thromboembolism and major hemorrhage in cancer-associated incidental pulmonary embolism among treated and untreated patients: a pooled analysis of 926 patients. J Thromb Haemost. 2016;14(1):105–13. https://doi.org/10.1111/jth.13172.

    Article  PubMed  Google Scholar 

  21. Peris M, López-Nuñez JJ, Maestre A, et al. RIETE Investigators. Clinical characteristics and 3-month outcomes in cancer patients with incidental versus clinically suspected and confirmed pulmonary embolism. Eur Respir J. 2021;58(1):2002723.

    Article  CAS  Google Scholar 

  22. Nishikawa T, Fujita T, Morishima T, Okawa S, Hino T, Yasui T, Shioyama W, Oka T, Miyashiro I, Fujita M. Prognostic effect of incidental pulmonary embolism on long-term mortality in cancer patients. Circ J. 2021;1160. https://doi.org/10.1253/circj.CJ-20-1160.

  23. Baumgartner C, Klok F, Carrier M, et al. Clinical surveillance vs anticoagulation for low-risk patients with isolated subsegmental pulmonary embolism: protocol for a multicentre randomised placebo-controlled non-inferiority trial (SAFE-SSPE). BMJ Open. 2020;10(11):e040151. https://doi.org/10.1136/bmjopen-2020-040151.

    Article  PubMed  PubMed Central  Google Scholar 

  24. Le Gal G, Kovacs MJ, Bertoletti L et al. Risk for recurrent venous thromboembolism in patients with subsegmental pulmonary embolism managed without anticoagulation: a multicenter prospective cohort study. Ann Intern Med. 2021. https://doi.org/10.7326/M21-2981. Epub ahead of print.

  25. Chang H, Kim MS, Lee SY, Shin SH, Park HY, Chang SA, Park TK, Kim DK, Kim EK. Does anticoagulation needed for distally located incidental pulmonary thromboembolism in patients with active cancer? PLoS One. 2019 Sep 12;14(9):e0222149. https://doi.org/10.1371/journal.pone.0222149.

    Article  CAS  PubMed  PubMed Central  Google Scholar 

  26. Key N, Khorana A, Kuderer N, et al. Venous thromboembolism prophylaxis and treatment in patients with cancer: ASCO clinical practice guideline update. J Clin Onc. 2020;38(6):496–520. https://doi.org/10.1200/JCO.19.01461.

    Article  Google Scholar 

  27. Lyman GH, Carrier M, Ay C, di Nisio M, Hicks LK, Khorana AA, Leavitt AD, Lee AYY, Macbeth F, Morgan RL, Noble S, Sexton EA, Stenehjem D, Wiercioch W, Kahale LA, Alonso-Coello P. American Society of Hematology 2021 guidelines for management of venous thromboembolism: prevention and treatment in patients with cancer. Blood Adv. 2021;5(4):927–74. https://doi.org/10.1182/bloodadvances.2020003442.

    Article  CAS  PubMed  PubMed Central  Google Scholar 

  28. Young AM, Marshall A, Thirlwall J, Chapman O, Lokare A, Hill C, Hale D, Dunn JA, Lyman GH, Hutchinson C, MacCallum P, Kakkar A, Hobbs FDR, Petrou S, Dale J, Poole CJ, Maraveyas A, Levine M. Comparison of an oral factor Xa inhibitor with low molecular weight heparin in patients with cancer with venous thromboembolism: results of a randomized trial (SELECT-D). J Clin Oncol. 2018;36(20):2017–23. https://doi.org/10.1200/JCO.2018.78.8034.

    Article  CAS  PubMed  Google Scholar 

  29. McBane RD 2nd, Wysokinski WE, Le-Rademacher JG, et al. Apixaban and dalteparin in active malignancy-associated venous thromboembolism: the ADAM VTE trial. J Thromb Haemost. 2020;18(2):411–21. https://doi.org/10.1111/jth.14662.

    Article  CAS  PubMed  Google Scholar 

  30. Raskob GE, van Es N, Verhamme P. et al; Hokusai VTE Cancer Investigators. Edoxaban for the treatment of cancer-associated venous thromboembolism. N Engl J Med. 2018;378(7):615–24. https://doi.org/10.1056/NEJMoa1711948.

    Article  CAS  PubMed  Google Scholar 

  31. Agnelli G, Becattini C, Meyer G, Muñoz A, Huisman MV, Connors JM, Cohen A, Bauersachs R, Brenner B, Torbicki A, Sueiro MR, Lambert C, Gussoni G, Campanini M, Fontanella A, Vescovo G, Verso M. Caravaggio Investigators. Apixaban for the treatment of venous thromboembolism associated with cancer. N Engl J Med. 2020;382(17):1599–607. https://doi.org/10.1056/NEJMoa1915103.

    Article  CAS  PubMed  Google Scholar 

  32. Mulder FI, Di Nisio M, Ay C, et al. Clinical implications of incidental venous thromboembolism in cancer patients. Eur Respir J. 2020;55(2):1901697. https://doi.org/10.1183/13993003.01697-2019.

    Article  PubMed  Google Scholar 

  33. Giustozzi M, Connors JM, Ruperez Blanco AB, Szmit S, Falvo N, Cohen AT, Huisman M, Bauersachs R, Dentali F, Becattini C, Agnelli G. Clinical characteristics and outcomes of incidental venous thromboembolism in cancer patients: insights from the Caravaggio study. J Thromb Haemost. 2021;19(11):2751–9. https://doi.org/10.1111/jth.15461.

    Article  PubMed  PubMed Central  Google Scholar 

  34. Konstantinides S, Meyer G, Becattini C, et al. 2019 ESC guidelines for the diagnosis and management of acute pulmonary embolism developed in collaboration with the European Respiratory Society (ERS). Eur Heart J. 2020;41(4):543–603. https://doi.org/10.1093/eurheartj/ehz405.

    Article  PubMed  Google Scholar 

  35. Aujesky D, Perrier A. Roy PM et al Validation of a clinical prognostic model to identify low-risk patients with pulmonary embolism. J Intern Med. 2007;261(6):597–604. https://doi.org/10.1111/j.1365-2796.2007.01785.x.

    Article  CAS  PubMed  Google Scholar 

  36. den Exter PL, Gómez V, Jiménez D, Trujillo-Santos J, Muriel A, Huisman MV, Monreal M. Registro Informatizado de la Enfermedad TromboEmbólica (RIETE) Investigators. A clinical prognostic model for the identification of low-risk patients with acute symptomatic pulmonary embolism and active cancer. Chest. 2013;143(1):138–145. https://doi.org/10.1378/chest.12-0964. PMID: 22814859.

  37. Jimenez D, Aujesky D, Moores L, et al. Simplification of the pulmonary embolism severity index for prognostication in patients with acute symptomatic pulmonary embolism. Arch Intern Med. 2010;170(15):1383–9. https://doi.org/10.1001/archinternmed.2010.199.

    Article  PubMed  Google Scholar 

  38. Kline JA, Roy PM, Than MP, Hernandez J, Courtney DM, Jones AE, Penaloza A, Pollack CV Jr. Derivation and validation of a multivariate model to predict mortality from pulmonary embolism with cancer: the POMPE-C tool. Thromb Res. 2012;129(5):e194–e19. https://doi.org/10.1016/j.thromres.2012.03.015.

    Article  CAS  PubMed  PubMed Central  Google Scholar 

  39. Font C, Carmona-Bayonas A, Beato C, Reig Ò, Sáez A, Jiménez-Fonseca P, Plasencia JM, Calvo-Temprano D, Sanchez M, Benegas M, Biosca M, Varona D, Vicente MA, Faez L, Solís MD, de la Haba I, Antonio M, Madridano O, Castañon E, Martinez MJ, Marchena P, Ramchandani A, Dominguez A, Puerta A, Martinez de la Haza D, Pueyo J, Hernandez S, Fernandez-Plaza A, Martinez-Encarnacion L, Martin M, Marin G, Ayala F, Vicente V, Otero R, Asociación para la Investigación de la Enfermedad Tromboembólica de la región de Murcia. Clinical features and short-term outcomes of cancer patients with suspected and unsuspected pulmonary embolism: the EPIPHANY study. Eur Respir J. 2017;49(1):1600282. https://doi.org/10.1183/13993003.00282-2016.

    Article  PubMed  Google Scholar 

  40. Carmona-Bayonas A, Jiménez-Fonseca P, Font C, et al. Predicting serious complications in patients with cancer and pulmonary embolism using decision tree modelling: the EPIPHANY Index. Br J Cancer. 2017;116(8):994–1001. https://doi.org/10.1038/bjc.2017.48.

    Article  CAS  PubMed  PubMed Central  Google Scholar 

  41. Ahn S, Cooksley T, Banala S, Buffardi L, Rice TW. Validation of the EPIPHANY index for predicting risk of serious complications in cancer patients with incidental pulmonary embolism. Support Care Cancer. 2018;26(10):3601–7. https://doi.org/10.1007/s00520-018-4235-9.

    Article  PubMed  Google Scholar 

  42. Banala S, Yeung SC, Rice TW, Reyes-Gibby C, et al. Discharge or admit? Emergency department management of incidental pulmonary embolism in patients with cancer: a retrospective study. Int J Emerg Med. 2017;10(1):19. https://doi.org/10.1186/s12245-017-0144-9.

    Article  PubMed  PubMed Central  Google Scholar 

  43. Bozas G, Jeffery N. Ramanujam-Venkatachala D et al Prognostic assessment for patients with cancer and incidental pulmonary embolism. Thrombosis J. 2018;16(1):8. https://doi.org/10.1186/s12959-017-0157-x.

    Article  CAS  Google Scholar 

  44. Maraveyas A, Kraaijpoel N, Bozas G, Huang C, Mahé I, Bertoletti L, Bartels-Rutten A, Beyer-Westendorf J, Constans J, Iosub D, Couturaud F, Muñoz AJ, Biosca M, Lerede T, van Es N, di Nisio M, the UPE investigators. UPE investigators. The prognostic value of respiratory symptoms and performance status in ambulatory cancer patients and unsuspected pulmonary embolism; analysis of an international, prospective, observational cohort study. J Thromb Haemost. 2021;19(11):2791–800. https://doi.org/10.1111/jth.15489.

    Article  CAS  PubMed  Google Scholar 

  45. Lasserson DS, Harris C, Elias T, Bowen J, et al. What is the evidence base for ambulatory care for acute medical illness? Acute Med. 2018;17(3):148–53. https://doi.org/10.52964/AMJA.0720.

    Article  CAS  PubMed  Google Scholar 

  46. Todd KH, Thomas CR Jr. An inflection point in the evolution of oncologic emergency medicine. Ann Emerg Med. 2016;68(6):712–6. https://doi.org/10.1016/j.annemergmed.2016.03.008.

    Article  PubMed  Google Scholar 

  47. Cooksley T, Font C, Scotte F, Escalante C, Johnson L, Anderson R, Rapoport B. Emerging challenges in the evaluation of fever in cancer patients at risk of febrile neutropenia in the era of COVID-19: a MASCC position paper. Support Care Cancer. 2021;29(2):1129–38. https://doi.org/10.1007/s00520-020-05906-y.

    Article  PubMed  Google Scholar 

  48. Hamad M, Connolly V. Ambulatory emergency care – improvement by design. Clin Med. 2018;18(1):69–74. https://doi.org/10.7861/clinmedicine.18-1-69.

    Article  Google Scholar 

  49. Conley J, O’Brien CW, Leff BA, Bolen S, Zulman D. Alternative strategies to inpatient hospitalization for inpatient conditions: a systematic review. JAMA Intern Med. 2016;176(11):1693–702. https://doi.org/10.1001/jamainternmed.2016.5974.

    Article  PubMed  Google Scholar 

  50. Cooksley T, Marshall W, Ahn S, Lasserson DS, Marshall E, Rice TW, Klotz A. Ambulatory emergency oncology: a key tenet of future emergency oncology care. Int J Clin Pract. 2020;74(1):e13436. https://doi.org/10.1111/ijcp.13436.

    Article  PubMed  Google Scholar 

  51. Font C, Fernández-Avilés F, Calderon C, García-Fernández T, Arab N, Pineda E, Buxó E, Ayora P, Carreño M, Pereira V, Viladot M, Moreno C, Gallego C, Hernando A, Creus N, Barrera C, Alcaraz R, Sanchez J, Prat A, Tuca A. A. Home management of acute medical complications in cancer patients: a prospective pilot study. Support Care Cancer. 2016;24(5):2129–37. https://doi.org/10.1007/s00520-015-3006-0.

    Article  CAS  PubMed  Google Scholar 

  52. Noble S, Nelson A, Scott J, Berger A, Schmidt K, Swarnkar P, Lee A. Patient experience of living with cancer-associated thrombosis in Canada (PELICANADA). Res Pract Thromb Haemost. 2019;4(1):154–60. https://doi.org/10.1002/rth2.12274.

    Article  PubMed  PubMed Central  Google Scholar 

Download references

Author information

Authors and Affiliations

Authors

Contributions

All authors read and approved the final manuscript.

Corresponding author

Correspondence to Tim Cooksley.

Ethics declarations

Competing interests

The authors declare that they have no competing interests.

Additional information

Publisher’s Note

Springer Nature remains neutral with regard to jurisdictional claims in published maps and institutional affiliations.

The authors identified that Table 2 contains wrong references.

Rights and permissions

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/.

Reprints and permissions

About this article

Check for updates. Verify currency and authenticity via CrossMark

Cite this article

Font, C., Cooksley, T., Ahn, S. et al. Emergency management of incidental pulmonary embolism (IPE). Emerg Cancer Care 1, 7 (2022). https://doi.org/10.1186/s44201-022-00004-7

Download citation

  • Received:

  • Accepted:

  • Published:

  • DOI: https://doi.org/10.1186/s44201-022-00004-7

Keywords