hematuria copy
TRANSCRIPT
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بسم الله الرحمن بسم الله الرحمن الرحيمالرحيم
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HEMATURIAHEMATURIADr.Samir Sally,MD
Prof. internal medicine & nephrologyMansoura Urology & Nephrology Centre,
Mansoura University
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CASECASE An otherwise healthy 48-year-old woman is
found to have microscopic hematuria (5 red cells per high-power field) on a urinalysis performed by a life insurance company. No other laboratory abnormalities are identified; the serum creatinine concentration is 0.8 mg per deciliter (70.7 µmol per liter). The woman reports no symptoms and is a nonsmoker. Her blood pressure is 118/74 mm Hg, and the findings on physical examination are normal. How should she be evaluated?
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DEFINITIONDEFINITION
More than three red blood cells are found in centrifuged urine per high-power field microscopy( > 3 RBC/HP).
Normal urine:no red blood cell or less than three red blood cell
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DefinitionDefinition
Macroscopic (gross) Hematuria
Visible (Red Urine)
Microscopic Hematuria
>3RBC/HPF from two of three urinary sediments without a urinary tract infection, or menstruation on microscopic evaluation
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EvaluationEvaluationof the patient of the patient with with
HematuHematuriaria
29/1/2014
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It is difficult to localize the site of bleeding by routine examination of the patient with hematuria.
However, certain findings may be very helpful depend on size & shape of RBCs.
For example, casts form in the lumina of renal tubules. Therefore, the presence of RBCs casts localizes the site of bleeding to the renal parenchyma.
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HematuriaHematuria
Painful or painlessGross or microscopicInitial, terminal or totalTransient or persistentGlomerular or non glomerularPresence of clotsAzospermiafalse
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ETIOLOGYETIOLOGY Diseases of the urinary system—the most
common cause Vascular arteriovenous malformation arterial emboli or thrombosis arteriovenous fistular nutcracker syndrome renal vein thrombosis loin-pain hematuria syndrom cogulation abnormality excessive anticogulation
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Nutcracker syndromeNutcracker syndrome
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Glomerular IgA nehropathy thin basement membrane disease (incl.Alport syndrome) other causes of primary and secondary glomerulonephritis
Interstitial allergic interstitial nephritis analgesic nephropathy renal cystic diseases acute pyelonephritis tuberculosis renal allograft rejection
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Uroepithelium malignancy vigorous excise trauma papillary necrosis cystitis/urethritis/prostatitis(usually caused by infection) parasitic diseases (e.g. schistosomiasis) nephrolithiasis or bladder calculi
Multiple sites or source unknown hypercalciuria hyperuricosuria
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System disorders a. Hematological disorders aplastic anemia leukemia allergic purpura hemophilia ITP (idiopathy thrombocytopenic purpura)
b. Infection infective endocarditis septicemia epidemic hemorrhagic fever , Hantaan virus) scarlet fever (-hemolytic streptococcus) leptospirosis (leptospire) filariasis (Wuchereria bancrofti, Brugia malayi)
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c. Connective tissue diseases systemic lupus erythematosus (SLE, polyarteritis nodosa
d. Cariovascular diseases hypertensive nephropathy chronic heart failure renal artery sclerosis
e. Endocrine and metabolism diseases gout diabetes mellitus
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Diseases of adjacent organs to urinary tract appendicitis salpingitis carcinoma of the rectum carcinoma of the colon uterocervical cancer
Drug and chemical agents sulfanilamides anticoagulation cyclophosphamide ( CTX ) mannitol
miscellaneous exercise “idopathic” hematuria
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Accompanied symptomsAccompanied symptoms
Hematuria with renal colic renal stone, ureter stone
if with dysuria or straining to void: bladder or urethra stone
Hematuria with urinary frequency,urgency and dysuria
bladder or lower urinary tract (tuberculosis or tumor)
if accompanied by high spiking fever, chill and loin pain: pyelonephritis
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Hematuria with edema and hypertension glomerulonephritis hypertensive nephropathy Hematuria with mass in the kidney neoplasm hereditary polycystic kidney Hematuria with hemorrhage in skin and mucosa hematological disorders infectious diseases Hematuria with chyluria filariasisCyclic hematuria in women that is most prominent
during and shortly after menstruation, suggesting endometriosis of the urinary tract
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Important areas to check on the physical examination
•Blood Pressure •Check for edema, especially around the eyes •Careful inspection of the external genitalia •Look for any rashes, evidence of trauma and bruising, petechiae •Exam all joints for signs of arthritis-red, warm, or swollen •Feel the abdomen carefully for any masses or tenderness. Check for CVA tenderness. Try to feel for enlarged kidneys. •Check for evidence of paleness or jaundice •Accurately measure length and weight and plot on growth chart.
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LABORATORY TESTSLABORATORY TESTS
Three-glass testMethod: collecting the three stages of urine of a patient during micturitionResult: the initial specimen containing RBC—the urethra the last specimen containing RBC—the bladder neck and trianglar area, posturethra all the specimens containing RBC—upper urinary tract, bladder
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NEJM, 2003
Evaluation of microscopic hematuria
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--Approaching to the patient– (Harrison’s Principle of Internal
Medicine,14th Ed)HEMATURIA
proteinuria (>500mg/24h)Dysmorphic RBC or RBC casts
Pyuria,WBC casts urine culture eosinophils serologic and hematologic
evaluation: blood culture, anti-GBM Ab, ANCA, complement, cryoglobulin HBV,HCV,VDRL,HIV, ASLO
renal biopsy
Hb electrophoresis, urine cytology, UA of family member, 24h urinary calcium/uric acid
IVP+/-renal ultrasound
As indicated: retrograde pyelography or arteriogram of cyst aspiration
cystoscopy
CT scanbiopsy
open renal biopsyfollow
(-)
(-)
(-)
(-)
(-)(-)
(+)(+)
(+)
(+)(+) ANCA:antineutrophil cytoplasmic
antibody, VDRL:venereal dis. research laboratory, ASLO: antisteptolysin O, IVP: intravenous pyelography
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DIFFERENTIAL DIAGNOSISDIFFERENTIAL DIAGNOSIS
Polluted urine: menstruation Drug and food: phenosulfonphtha lein (PSP),uric
acid, vegetable Porphyrism: porphyrin in urine (+) Hemoglobinuria
hemolysis
occult blood test (+)
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MyoglobinuriaMyoglobinuria
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HEMOGLOBINURIAHEMOGLOBINURIA
RBC abnormality Defects of RBC membrane structure and function
(hereditary spherocytosis) Deficiency of enzymes (favism) Hemoglobinopathy (thalassemia) PNH
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Phase-contrast microscopy
to distinguish glomerular from post glomerular bleeding
• post glomerular bleeding: normal size and shape of RBC
• glomerular bleeding: dysmorphic RBC (acanthocyte)
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EXAMPLE OF PHASE-CONTRAST EXAMPLE OF PHASE-CONTRAST MICROSCOPY TEST MICROSCOPY TEST (glomerlar)(glomerlar)
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EXAMPLE OF PHASE-CONTRAST EXAMPLE OF PHASE-CONTRAST MICROSCOPY TEST MICROSCOPY TEST (non-glomerlar)(non-glomerlar)
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Glomerular HematuriaGlomerular Hematuria
RENAL
IgA nephropathy Alport syndrome Thin glomerular BM disease Post infectious MPGN
MULTI-SYSTEM
SLE nephritis HSP nephritis Wegener syndrome Goodpasture syndrome HUS Sickle cell Disease
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Extraglomerular HematuriaExtraglomerular Hematuria
UPPER URINARY TRACT
pyelonephritis ATN papillary necrosis nephrocalcinosis thrombosis malformation SCD tumor PCKD
LOWER URINARY TRACT
cystitis urethritis urolithiasis trauma coagulopathy heavy excersise UPJ obstruction ureterocele
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Urine CytologyUrine Cytology
The sensitivity of urine cytology for the diagnosis of urothelial cell cancer is low, and a negative result does not exclude patients from further testing.
It has been shown in multiple studies that the addition of urine cytology in the primary analysis of hematuria does not contribute to diagnosis which is usually made by cystoscopy or imaging.
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Urine CultureUrine Culture
The addition of cultures of urine may be indicated if the sediment shows leukocytes.
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Clinical Chemistry Clinical Chemistry
Important to support a nephrologic diagnosis
RFT Coagulation profile
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ImmunologyImmunology
Antinuclear antibody (ANA) , Anti-double stranded (ds) antibody
C3 & C4 complement concentrations– Low in SLE, acute post infectious
glomerulonephritis, Cryoglobulinemia
ASO titre– High after streptococcal infection
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SerologySerology
Hepatitis B and C, HIV serology
ANCA test for diagnosis of vascuilitis
Anti-GBM antibodies in GP syndrome C-ANCA P-ANCA
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CystoscopyCystoscopy
The American Urological Association best practice policy suggests that, in patients at low risk for urothelial cancer, cystoscopy may be avoided.
Imaging of the bladder should preferably precede cystoscopy, so it can aid the urologist and improve diagnostic yield.
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Investigation : Investigation : Radiology Radiology
Helical CT Urogram (preferredpreferred) Renal US
– Defines anatomy– Signs of glomerular disease , hydronephrosis, and
renal cysts– CT Urogram is usually preferred over US
Intravenous Pyelogram– Suspected Nephrolithiasis
Cystoscopy– Extraglomerular source of Hematuria
MRI Urography– Indicated where CT Urogram is contraindicated
(e.g. Pregnancy, Children)– Identifies urothelial cancer, Nephrolithiasis and
renal tumors
http://www.ajronline.org/doi/full/10.2214/AJR.10.4198
American Journal of Roentgenology. 2010
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Abdominal RadiographsAbdominal Radiographs
Its overall sensitivity for renal and ureteral stones is only 45–60% in multiple studies
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Non-contrast CTNon-contrast CT
It is now the reference standard for stone detection, and even very-low-dose unenhanced CT techniques with a radiation dose comparable to that of abdominal radiographs have shown better results
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ADPKDADPKD
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UltrasoundUltrasound
Ultrasound is suitable as first-line diagnostic test
In comparison with excretory urography, ultrasound showed a higher sensitivity for bladder tumors and equal (i.e., moderate) sensitivity for upper urinary tract tumors. Ultrasound alone is not sensitive (19–32%) for stone detection,
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ADPKDADPKD
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Excretory UrographyExcretory Urography
For hematuria, multiple studies have now shown the superiority of CT urography over excretory urography.
There is also a low sensitivity (< 60%) for renal tumors smaller than 3 cm for excretory urography
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A : IVPB: (CT)C: CT urography
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MR Urography (MRU)MR Urography (MRU) MRU has inherent advantages
in that it does not require ionizing radiation, has a high contrast resolution, has good sensitivity for contrast media, and has the possibility for better tissue characterization than other imaging techniques do
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MR Urography (MRU)MR Urography (MRU)
However, MRU is costly, technically demanding, and not widely practiced.
Therefore, MRU expertise is available only in specific dedicated centers.
It is good for pediatric diseases and for the evaluation of obstructive disease.
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Nephrological referral Nephrological referral ++ biopsy biopsy
Evidence of declining GFR (by >10ml/min at any stage within the previous 5 years or by >5ml/min within the last 1 year)
Stage 4 or 5 CKD (eGFR <30ml/min)
Significant proteinuria
Isolated hematuria with hypertension in those aged <40
Visible haematuria coinciding with intercurrent (usually upper respiratory tract) infection
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Exercise induced hematuriaExercise induced hematuria
•Gross or microscopic hematuria that occurs after strenuous exercise and resolves with rest
•Direct trauma to the kidneys and/or bladder may be responsible for the hematuria
•Renal ischemia due to shunting of blood to exercising muscles
•Exercise-induced gross hematuria should be differentiated from two other potential causes of red to brown urine following exercise: myoglobinuria due to rhabdomyolysis; and march hemoglobinuria
•Evaluation is not warranted in patients under age fifty who are not at increased risk for bladder or kidney cancer
•Evaluation for other causes of hematuria is warranted if the hematuria persists well beyond one week
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Henoch–Schönlein purpuraHenoch–Schönlein purpura
HSP is a systemic vasculitis (inflammation of blood vessels) and is characterized by deposition of immune complexes containing the antibody IgA.
Rash, arthritis, abdominal pain and hematuria
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C/P of poststrept GNC/P of poststrept GN In general, the latent period is 1-2 weeks after a throat
infection and 3-6 weeks after a skin infection.
Dark urine (brown-, tea-, or cola-colored)This is often the first clinical symptom.
Dark urine is caused by hemolysis of red blood cells that have penetrated the glomerular basement membrane and have passed into the tubular system.
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C/P of poststrept GNC/P of poststrept GN The onset of puffiness of the face or eyelids is sudden. It
is usually prominent upon awakening and, if the patient is active, tends to subside at the end of the day
In some cases, generalized edema and other features of circulatory congestion, such as dyspnea, may be present.
Edema is a result of a defect in renal excretion of salt and water.
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Gross hematuriaGross hematuria Gross hematuria is suspected because of the
presence of red or brown urine. The color change does not necessarily reflect the
degree of blood loss, since as little as 1 mL of blood per liter of urine can induce a visible color change.
Gross hematuria with passage of clots almost always indicates a lower urinary tract source.
The initial step initial step in the evaluation of patients with red urine is centrifugation of the specimen to see if the red or brown color is in the urine sediment or the urine supernatant.
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Causes of Asymptomatic Causes of Asymptomatic Gross Hematuria by Gross Hematuria by
IncidenceIncidence Acute Cystitis (23%)Acute Cystitis (23%) Bladder Cancer (17%) Benign Prostatic Hyperplasia (12%) Nephrolithiasis (10%) Benign essential Hematuria (10%) Prostatitis (9%) Renal cancer (6%) Pyelonephritis (4%) Prostate Cancer (3%) Urethral stricture (2%)
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The most common risk The most common risk factors for urinary tract factors for urinary tract
malignancy in AMH patientsmalignancy in AMH patients Age >35 years Smoking history in which the risk correlates with the
extent of exposure Occupational exposure to chemicals or dyes (benzenes
or aromatic amines), such as printers, painters, chemical plant workers
History of gross hematuria History of chronic cystitis or irritative voiding
symptoms History of pelvic irradiation History of exposure to cyclophosphamide History of a chronic indwelling foreign body History of analgesic abuse, which is also associated
with an increased incidence of carcinoma of the kidneyThe American Urological Association (AUA)
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NEJM, 2003
Evaluation of microscopic hematuria
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Thanks Thanks 29/1/2014