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who sought emergency treatment due to symptoms of HF&#58; one with right HF and the other with left HF&#46; Both patients also had hypotension and mild oedema upon physical examination&#44; and an initial laboratory analysis revealed previously undiagnosed RF &#40;Table 1&#41; with conserved diuresis&#46; In both cases&#44; an electrocardiogram revealed low-voltage sinus rhythm&#46; Given the state of hypotension and signs of heart failure&#44; both patients underwent electrocardiography that revealed a restrictive pattern of mitral filling&#44; suggestive of hypertrophic cardiomyopathy &#40;as opposed to restrictive&#41;&#46; Simultaneously&#44; we performed an analysis of RF&#44; with ultrasound images revealing the kidneys to be morphologically normal&#46; We determined the protein&#47;creatinine &#40;Cr&#41; ratio&#44; which was 2500mg&#47;g Cr in one patient&#44; and almost normal &#40;66mg&#47;g Cr&#41; in the other patient&#46; Given the finding in both cases of normochromic normocytic anaemia&#44; with elevated sedimentation rates and renal failure&#44; negative sediment results&#44; and a restrictive pattern in ultrasound analyses&#44; we established the preliminary diagnosis of a systemic infiltrative pathology such as amyloidosis&#44; which led to tests for immunoglobulins and light chains in blood and urine samples&#46; The results from these tests revealed a monoclonal gammapathy&#46; We administered myelograms that confirmed the diagnosis of multiple myeloma &#40;in the first case&#44; lambda IgA&#44; and in the second&#44; lambda IgG&#41;&#44; with 24&#37; and 22&#37;-40&#37; infiltration&#44; respectively&#46; Given the suspicion of associated amyloidosis&#44; we performed biopsies of the rectal submucosa&#44; which were positive for Congo red stain tests and birefringence&#44; confirming the diagnosis of AL amyloidosis&#46; Both patients started treatment with bortezomib and prednisone&#44; but the first patient experienced a poor evolution&#44; requiring renal replacement therapy followed by the development of acute pulmonary oedema with cardiogenic shock that was not improved by vasoactive drugs&#44; followed by death after a few weeks&#46;</p><p class="elsevierStylePara">Amyloidosis is a systemic disease that affects several organs at the moment of diagnosis&#46; In primary amyloidosis&#44; the protein deposits include light chains from the immunoglobulins produced by clonal proliferation of plasma cells&#44; primarily due to multiple myeloma&#46; Asymptomatic deposits of amyloid material can be observed in 30&#37; of patients&#44;<span class="elsevierStyleSup">1&#44;2</span> and 10&#37;-15&#37; develop symptomatic AL amyloidosis&#46;<span class="elsevierStyleSup">3&#44;4</span> Both myeloma and amyloidosis can produce renal manifestations&#58; renal involvement in multiple myeloma is multi-factorial&#44; although the most common finding is referred to as &#8220;myeloma kidney&#8221; &#40;60&#37; of cases&#41;&#44; which is characterised by tubulo-interstitial damage that is clinically expressed as acute or chronic RF due to tubular light chain precipitation&#46; The majority of patients progress with proteinuria&#44; which is non-selective in 90&#37; of cases&#44; and 25&#37; of these patients develop nephrotic syndrome&#46; Patients with vascular involvement develop only mild proteinuria&#44; but RF continues to progress due to the decrease in renal flow&#46;</p><p class="elsevierStylePara">The heart is another organ often implicated in amyloidosis &#40;figure 1&#41;&#46; Cardiac involvement can be observed in 50&#37; of patients with AL amyloidosis&#46; Cardiac involvement should be suspected in patients with primarily right HF symptoms&#44; with conserved systolic function and diastolic dysfunction&#46;<span class="elsevierStyleSup">3</span> Pulmonary oedema is not a common complication&#46; Established myocardial damage is evaluated by determining troponin and atrial natriuretic peptide levels&#44; which can be used to monitor response to treatment&#46; In order to confirm the diagnosis of amyloidosis&#44; a positive biopsy test must be produced using Congo red stain in affected tissue&#44; and if cardiac involvement is suspected&#44; a positive cardiac imaging test &#40;echocardiogram or magnetic resonance&#41;&#44; or even an endomyocardial biopsy&#44; which is a relatively safe procedure when performed by experienced technicians&#44; is needed&#46;<span class="elsevierStyleSup">1&#44;5</span></p><p class="elsevierStylePara">There are two critical components that affect the survival of patients with amyloidosis&#58; cardiac involvement and response to treatment&#46;<span class="elsevierStyleSup">3</span> Patients with cardiac involvement have a mean survival of 1&#46;1 years after diagnosis&#44; and a survival less than 6 months if treatment is not provided once the first symptoms of HF are recognised&#44;<span class="elsevierStyleSup">1&#44;3&#44;5&#44;6</span> especially if the signs of heart failure persist when the diagnosis is confirmed&#46; Even when the primary manifestation of the disease is in another organ system&#44; cardiac involvement implies a worse prognosis&#46; Only in select cases of isolated cardiac involvement have heart transplants followed by bone marrow transplants been attempted with positive results&#46;<span class="elsevierStyleSup">4&#44;6</span></p><p class="elsevierStylePara">To conclude&#44; the primary manifestations of AL amyloidosis are in the kidneys and heart&#46; Given a hypotensive patient with progressively deteriorating renal function and ultrasound imaging results indicative of infiltrative cardiomyopathy&#44; vascular amyloidosis should immediately be suspected as a possible diagnosis&#44; and an aetiological examination should be started to rule out associated myeloma&#44; in addition to completing the diagnosis of amyloidosis with a tissue sample analysis&#46; The approach for this disease must be multi-disciplinary&#44; evaluating available diagnostic techniques and treatments under a consensus model&#46; In the first of our two cases&#44; the disease expanded aggressively in its severe form&#44; involving both organs and the vascular system&#44; producing an atrocious prognosis with severely limited treatment options&#46; In the second case&#44; it may have been that the bortezomib was able to supress the associated amyloidosis&#44; given its positive results in treating myeloma&#44; or at least could facilitate the consideration of bone marrow transplantation in patients with a partial response to treatment&#46;</p><p class="elsevierStylePara">&#160;</p><p class="elsevierStylePara"><span class="elsevierStyleBold">Conflicts of interest</span></p><p class="elsevierStylePara">&#160;</p><p class="elsevierStylePara">The authors state that they have no potential conflicts of interest related to the content of this article&#46;</p><p class="elsevierStylePara"><a href="grande&#47;11556&#95;108&#95;39794&#95;en&#95;t110&#46;jpg" class="elsevierStyleCrossRefs"><img src="11556_108_39794_en_t110.jpg" alt="Laboratory parameters of the two cases upon hospitalisation"></img></a></p><p class="elsevierStylePara">Table 1&#46; Laboratory parameters of the two cases upon hospitalisation</p><p class="elsevierStylePara"><a href="grande&#47;11556&#95;108&#95;39795&#95;en&#95;pa769ginas&#95;desde10&#46;jpg" class="elsevierStyleCrossRefs"><img src="11556_108_39795_en_pa769ginas_desde10.jpg" alt="Cardiac magnetic resonance&#46; Delayed gadolinium enhancement in the subendocardium"></img></a></p><p class="elsevierStylePara">Figure 1&#46; Cardiac magnetic resonance&#46; Delayed gadolinium enhancement in the subendocardium</p>"
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Amyloidosis AL with severe renal and cardiac involvement: a very rare association of terrible prognosis, two case reports
Debut de amiloidosis AL con afectación grave cardíaca y renal: una asociación poco frecuente de infausto pronóstico. A raíz de 2 casos
Maria Núñez-Torrasa, Nàdia Martín-Alemanyb, Martí Vallès-Pratsb, Xavier Albert-Bertrana
a Servicio de Cardiología, Hospital Universitari Dr. Josep Trueta, Girona,
b Servicio de Nefrología, Hospital Universitari Dr. Josep Trueta, Girona,
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    "textoCompleto" => "<p class="elsevierStylePara"><span class="elsevierStyleBold">To the Editor&#58;</span></p><p class="elsevierStylePara">Amyloidosis is an uncommon disease produced by the deposition of fibrillar material that precipitates in the body tissues&#46; The most commonly affected organs are&#58; the kidneys &#40;50&#37;&#41;&#44; heart &#40;40&#37;-50&#37;&#41;&#44; and peripheral nerves &#40;25&#37;&#41;&#44; although it can affect any organ&#46;<span class="elsevierStyleSup">1</span> This disease implies a poor prognosis&#44; with 80&#37; mortality two years after diagnosis&#44; despite treatment&#46;<span class="elsevierStyleSup">2</span></p><p class="elsevierStylePara">Here we present two cases of primary amyloidosis that appeared initially in the form of heart failure &#40;HF&#41;&#44; hypotension&#44; and progressive renal failure &#40;RF&#41;&#58; an uncommon form of evolution for this disease&#46;</p><p class="elsevierStylePara">Both cases were female patients &#40;aged 58 and 57 years&#41; who sought emergency treatment due to symptoms of HF&#58; one with right HF and the other with left HF&#46; Both patients also had hypotension and mild oedema upon physical examination&#44; and an initial laboratory analysis revealed previously undiagnosed RF &#40;Table 1&#41; with conserved diuresis&#46; In both cases&#44; an electrocardiogram revealed low-voltage sinus rhythm&#46; Given the state of hypotension and signs of heart failure&#44; both patients underwent electrocardiography that revealed a restrictive pattern of mitral filling&#44; suggestive of hypertrophic cardiomyopathy &#40;as opposed to restrictive&#41;&#46; Simultaneously&#44; we performed an analysis of RF&#44; with ultrasound images revealing the kidneys to be morphologically normal&#46; We determined the protein&#47;creatinine &#40;Cr&#41; ratio&#44; which was 2500mg&#47;g Cr in one patient&#44; and almost normal &#40;66mg&#47;g Cr&#41; in the other patient&#46; Given the finding in both cases of normochromic normocytic anaemia&#44; with elevated sedimentation rates and renal failure&#44; negative sediment results&#44; and a restrictive pattern in ultrasound analyses&#44; we established the preliminary diagnosis of a systemic infiltrative pathology such as amyloidosis&#44; which led to tests for immunoglobulins and light chains in blood and urine samples&#46; The results from these tests revealed a monoclonal gammapathy&#46; We administered myelograms that confirmed the diagnosis of multiple myeloma &#40;in the first case&#44; lambda IgA&#44; and in the second&#44; lambda IgG&#41;&#44; with 24&#37; and 22&#37;-40&#37; infiltration&#44; respectively&#46; Given the suspicion of associated amyloidosis&#44; we performed biopsies of the rectal submucosa&#44; which were positive for Congo red stain tests and birefringence&#44; confirming the diagnosis of AL amyloidosis&#46; Both patients started treatment with bortezomib and prednisone&#44; but the first patient experienced a poor evolution&#44; requiring renal replacement therapy followed by the development of acute pulmonary oedema with cardiogenic shock that was not improved by vasoactive drugs&#44; followed by death after a few weeks&#46;</p><p class="elsevierStylePara">Amyloidosis is a systemic disease that affects several organs at the moment of diagnosis&#46; In primary amyloidosis&#44; the protein deposits include light chains from the immunoglobulins produced by clonal proliferation of plasma cells&#44; primarily due to multiple myeloma&#46; Asymptomatic deposits of amyloid material can be observed in 30&#37; of patients&#44;<span class="elsevierStyleSup">1&#44;2</span> and 10&#37;-15&#37; develop symptomatic AL amyloidosis&#46;<span class="elsevierStyleSup">3&#44;4</span> Both myeloma and amyloidosis can produce renal manifestations&#58; renal involvement in multiple myeloma is multi-factorial&#44; although the most common finding is referred to as &#8220;myeloma kidney&#8221; &#40;60&#37; of cases&#41;&#44; which is characterised by tubulo-interstitial damage that is clinically expressed as acute or chronic RF due to tubular light chain precipitation&#46; The majority of patients progress with proteinuria&#44; which is non-selective in 90&#37; of cases&#44; and 25&#37; of these patients develop nephrotic syndrome&#46; Patients with vascular involvement develop only mild proteinuria&#44; but RF continues to progress due to the decrease in renal flow&#46;</p><p class="elsevierStylePara">The heart is another organ often implicated in amyloidosis &#40;figure 1&#41;&#46; Cardiac involvement can be observed in 50&#37; of patients with AL amyloidosis&#46; Cardiac involvement should be suspected in patients with primarily right HF symptoms&#44; with conserved systolic function and diastolic dysfunction&#46;<span class="elsevierStyleSup">3</span> Pulmonary oedema is not a common complication&#46; Established myocardial damage is evaluated by determining troponin and atrial natriuretic peptide levels&#44; which can be used to monitor response to treatment&#46; In order to confirm the diagnosis of amyloidosis&#44; a positive biopsy test must be produced using Congo red stain in affected tissue&#44; and if cardiac involvement is suspected&#44; a positive cardiac imaging test &#40;echocardiogram or magnetic resonance&#41;&#44; or even an endomyocardial biopsy&#44; which is a relatively safe procedure when performed by experienced technicians&#44; is needed&#46;<span class="elsevierStyleSup">1&#44;5</span></p><p class="elsevierStylePara">There are two critical components that affect the survival of patients with amyloidosis&#58; cardiac involvement and response to treatment&#46;<span class="elsevierStyleSup">3</span> Patients with cardiac involvement have a mean survival of 1&#46;1 years after diagnosis&#44; and a survival less than 6 months if treatment is not provided once the first symptoms of HF are recognised&#44;<span class="elsevierStyleSup">1&#44;3&#44;5&#44;6</span> especially if the signs of heart failure persist when the diagnosis is confirmed&#46; Even when the primary manifestation of the disease is in another organ system&#44; cardiac involvement implies a worse prognosis&#46; Only in select cases of isolated cardiac involvement have heart transplants followed by bone marrow transplants been attempted with positive results&#46;<span class="elsevierStyleSup">4&#44;6</span></p><p class="elsevierStylePara">To conclude&#44; the primary manifestations of AL amyloidosis are in the kidneys and heart&#46; Given a hypotensive patient with progressively deteriorating renal function and ultrasound imaging results indicative of infiltrative cardiomyopathy&#44; vascular amyloidosis should immediately be suspected as a possible diagnosis&#44; and an aetiological examination should be started to rule out associated myeloma&#44; in addition to completing the diagnosis of amyloidosis with a tissue sample analysis&#46; The approach for this disease must be multi-disciplinary&#44; evaluating available diagnostic techniques and treatments under a consensus model&#46; In the first of our two cases&#44; the disease expanded aggressively in its severe form&#44; involving both organs and the vascular system&#44; producing an atrocious prognosis with severely limited treatment options&#46; In the second case&#44; it may have been that the bortezomib was able to supress the associated amyloidosis&#44; given its positive results in treating myeloma&#44; or at least could facilitate the consideration of bone marrow transplantation in patients with a partial response to treatment&#46;</p><p class="elsevierStylePara">&#160;</p><p class="elsevierStylePara"><span class="elsevierStyleBold">Conflicts of interest</span></p><p class="elsevierStylePara">&#160;</p><p class="elsevierStylePara">The authors state that they have no potential conflicts of interest related to the content of this article&#46;</p><p class="elsevierStylePara"><a href="grande&#47;11556&#95;108&#95;39794&#95;en&#95;t110&#46;jpg" class="elsevierStyleCrossRefs"><img src="11556_108_39794_en_t110.jpg" alt="Laboratory parameters of the two cases upon hospitalisation"></img></a></p><p class="elsevierStylePara">Table 1&#46; Laboratory parameters of the two cases upon hospitalisation</p><p class="elsevierStylePara"><a href="grande&#47;11556&#95;108&#95;39795&#95;en&#95;pa769ginas&#95;desde10&#46;jpg" class="elsevierStyleCrossRefs"><img src="11556_108_39795_en_pa769ginas_desde10.jpg" alt="Cardiac magnetic resonance&#46; Delayed gadolinium enhancement in the subendocardium"></img></a></p><p class="elsevierStylePara">Figure 1&#46; Cardiac magnetic resonance&#46; Delayed gadolinium enhancement in the subendocardium</p>"
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