Type B lactic acidosis: a rare oncological emergency

2020 ◽  
Vol 13 (3) ◽  
pp. e233068
Author(s):  
Qiuying Selina Liu ◽  
Farzana Harji ◽  
Anna Jones ◽  
Amy C Tarnower

Type B lactic acidosis is a rare metabolic complication of malignancy, more commonly in haematological malignancies. Due to the lack of formal prospective trials, treatment of lactic acidosis associated with malignancy is based on case reports. Given the poor prognosis, early recognition of type B lactic acidosis and prompt treatment are crucial. We report the first case of type B lactic acidosis in metastatic melanoma, followed by a brief literature review on the proposed pathophysiology and treatment.

2017 ◽  
Vol 9 (3) ◽  
pp. 217-224 ◽  
Author(s):  
Woranit Onprasert ◽  
Kumutnart Chanprapaph

Lichen planus pemphigoides (LPP) is a rare autoimmune bullous dermatosis. The clinical presentation of LPP may mimic bullous pemphigoid making the diagnosis difficult. A thorough clinical, histopathological, and immunological evaluation is essential for the diagnosis of LPP. The etiology is largely idiopathic; however, there are several case reports of drug-induced LPP. We report an 81-year-old Thai woman with underlying hypertension and type 2 diabetes mellitus who presented with a 4-week history of multiple tense bullae initially on the hands and feet that subsequently expanded to the trunk and face. Enalapril was commenced to control hypertension. The histopathology and direct immunofluorescence were compatible with LPP. Circulating anti-basement antibodies BP180 was also positive. The patient was treated with topical corticosteroid with a modest effect. Enalapril was discontinued and complete resolution of LPP occurred within 12 weeks. There was no recurrence after a 1-year follow-up period. To the best of our knowledge, we present the first case of enalapril-induced LPP. Early recognition and prompt discontinuation of the culprit drug allow resolution of the disease. Medication given for LPP alone, without cessation of the offending drug, may not change the course of this condition.


2019 ◽  
Vol 2019 ◽  
pp. 1-8 ◽  
Author(s):  
Petr Waldauf ◽  
Katerina Jiroutkova ◽  
Frantisek Duska

Introduction. There is an inverse relationship between cardiac output and the central venous-arterial difference of partial pressures of carbon dioxide (pCO2 gap), and pCO2 gap has been used to guide early resuscitation of septic shock. It can be hypothesized that pCO2 gap can be used outside the context of sepsis to distinguish type A and type B lactic acidosis and thereby avoid unnecessary fluid resuscitation in patients with high lactate, but without organ hypoperfusion. Methods. We performed a structured review of the literature enlightening the physiological background. Next, we retrospectively selected a series of case reports of nonseptic critically ill patients with elevated lactate, in whom both arterial and central venous blood gases were simultaneously measured and the diagnosis of either type A or type B hyperlactataemia was conclusively known. In these cases, we calculated venous-arterial CO2 and O2 content differences and pCO2 gap. Results. Based on available physiological data, pCO2 can be considered as an acceptable surrogate of venous-arterial CO2 content difference, and it should better reflect cardiac output than central venous saturation or indices based on venous-arterial O2 content difference. In our case report of nonseptic patients, we observed that if global hypoperfusion was present (i.e., in type A lactic acidosis), pCO2 gap was elevated (>1 kPa), whilst in the absence of it (i.e., in type B lactic acidosis), pCO2 gap was low (<0.5 kPa). Conclusion. Physiological rationale and a small case series are consistent with the hypothesis that low pCO2 gap in nonseptic critically ill is suggestive of the absence of tissue hypoperfusion, mandating the search for the cause of type B lactic acidosis rather than administration of fluids or other drugs aimed at increasing cardiac output.


Medicine ◽  
2007 ◽  
Vol 86 (4) ◽  
pp. 225-232 ◽  
Author(s):  
Allison S. Friedenberg ◽  
Douglas E. Brandoff ◽  
Fred J. Schiffman

2018 ◽  
Vol 2018 ◽  
pp. 1-4 ◽  
Author(s):  
Marco Mejia ◽  
Ariel Perez ◽  
Harold Watson ◽  
Daniel Sanchez ◽  
Jorge Parellada ◽  
...  

Type B lactic acidosis is a rare metabolic complication sometimes associated with hematologic malignancies. When present, this type of lactic acidosis is most commonly seen in patients with high-grade lymphomas or leukemias and is usually indicative of a dismal prognosis. We report a case of a 27-year man with acquired immunodeficiency syndrome (AIDS) that presented with bilateral lower extremity swelling, an abdominal mass, and weight loss. His lab values showed elevated anion gap with lactic acidosis and computed tomography (CT) of the abdomen showed a large soft-tissue mass arising from the left hepatic lobe. Biopsy of the abdominal mass demonstrated a high-grade diffuse large B-cell lymphoma. The patient’s lactic acidosis resolved after starting chemotherapy, and a complete response was evident on PET-CT after a third cycle of rituximab, etoposide, prednisone, vincristine, cyclophosphamide, and doxorubicin (EPOC-RR). Care-givers should be aware of the implications of lactic acidosis associated with malignancy and the need for prompt diagnosis and treatment.


2021 ◽  
Vol 16 (2) ◽  
pp. 38-42
Author(s):  
Beatrice Preti ◽  
Jasna Deluce ◽  
Siddhartha Srivastava

Malignancy-induced type B lactic acidosis is a rare, yet fascinating, cause of refractory acidosis in patients with cancer, often unresponsive to usual medical treatments. Case reports usually discuss the paraneoplastic phenomenon in hematologic malignancies; however, we present the case of a 72-year-old woman with metastatic breast cancer, who initially presented to hospital with an elevated lactate in the absence of acidosis. She appeared to improve with fluids; however, she then represented 2 weeks later with a severe metabolic acidosis and undetectable high lactate level. Ultimately, the patient did not respond well to supportive care, and the decision was made to pursue comfort-directed therapy. RésuméL’acidose lactique de type B induite par une tumeur est une cause rare, mais extrêmement intéressante, d’acidose réfractaire chez les patients cancéreux et qui, souvent, ne répond pas aux traitements médicaux habituels. Les études de cas traitent généralement du phénomène paranéoplasique des tumeurs malignes hématologiques; toutefois, nous présentons le cas d’une femme de 72 ans atteinte d’un cancer du sein métastatique, qui s’est d’abord présentée à l’hôpital pour un taux élevé de lactate dans le sang, mais sans acidose. Son état a semblé s’améliorer grâce à un apport de liquides; toutefois, elle s’est présentée de nouveau à l’hôpital deux semaines plus tard pour une acidose métabolique grave et un taux élevé de lactate indétectable. Au bout du compte, la patiente n’a pas bien répondu aux soins de soutien, et il a été décidé d’appliquer les soins de confort.


2011 ◽  
Vol 11 ◽  
pp. 1316-1324 ◽  
Author(s):  
Juan P. Ruiz ◽  
Ashok Singh ◽  
Peter Hart

Most of the information about type B lactic acidosis associated with cancer is derived from case reports and there are no randomized controlled trials to compare different therapeutic modalities. Previous reviews of cases only refer to hematologic malignancies. We present a patient with non-Hodgkin's lymphoma who developed type B lactic acidosis. We performed a search of the PUBMED database using the MESH terms “neoplasms” AND “acidosis, lactic”, limited to the English language, and written between the years 2000 and 2010. A total of 31 cases were retrieved. These cases were identified and reviewed. The possible pathophysiologic mechanisms and treatment options are discussed. Type B lactic acidosis is most commonly seen in patients with lymphoma or leukemia. Although formal prospective trials are lacking, type B lactic acidosis in patients with cancer seems to be a marker of poor prognosis regardless of the treatment offered and may be invariably fatal. Future research should focus on potential therapy based on the pathogenic mechanisms that lead to type B lactic acidosis in cancer patients.


2020 ◽  
Vol 2 (1) ◽  
pp. 38-43
Author(s):  
Luiz Severo Bem Junior ◽  
Gustavo De Souza Andrade ◽  
Joao Ribeiro Memória Júnior ◽  
Hildo Rocha Cirne de Azevedo Filho

Terson's sign (TS) is classically defined as vitreous hemorrhage associated with subarachnoid hemorrhage of aneurysmal origin, being an important predictor of severity, indicating greater morbidity and mortality when compared to patients without the sign. The objective of this study is to review the relationship of Terson syndrome/Terson sign with the prognosis of aneurysmal subarachnoid hemorrhage. A search for original articles, research and case reports was performed on the PubMed, Scielo, Cochrane and ScienceDirect platform, with the following descriptors: Terson sign and subarachnoid hemorrhage. Retrospective, prospective articles and case reports published in the last 5 years and which were in accordance with the established objective and inclusion criteria were selected. Ten (10) articles were selected, in which the available results show an unfavorable prognostic relationship of TS and subarachnoid hemorrhage, because these patients had a worse clinical status assessed on the Glasgow scales ≤ 8, Hunt & Hess > III, Fisher > 3, in addition to intracranial hypertension and location of the aneurysm in the anterior communicating artery complex. The early recognition of this condition described by Albert Terson in 1900 brought an important contribution to neurosurgery, being recognized until nowadays.


2021 ◽  
pp. 1159-1167
Author(s):  
Zainab Al Maqrashi ◽  
Mary Sedarous ◽  
Avinash Pandey ◽  
Catherine Ross ◽  
Ahraaz Wyne

Lactate is a byproduct of anaerobic glycolysis, and hyperlactatemia is commonly seen in critically ill patients. We report a case of an elderly male presenting with undifferentiated constitutional symptoms, anemia, thrombocytopenia, severe lactic acidosis, refractory hypoglycemia, and a newly detected abdominal mass. A dedicated workup ruled out infectious etiologies and revealed metastatic non-Hodgkin’s lymphoma. This study explores etiologies of type B lactic acidosis in oncology patients, with a focus on Warburg’s effect, and its potential for prognostication.


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