INVESTIGATION AND MANAGEMENT OF...
Transcript of INVESTIGATION AND MANAGEMENT OF...
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INVESTIGATION AND
MANAGEMENT OF HEMOPTYSIS
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Hemoptysis is an important sign of an underlying diseaseMortality rate can be as high as 80%Upto 30% of patients have no cause identified even after careful evaluation
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Massive hemoptysis is life threatningdue to asphyxia, not so much as due to hypovolemia.Bleeding that results in respiratory distress and altered gas exchange is life threatening regardless of amount of blood. Amount of blood expectorated not necessarily represents the total amount lost into the air spaces.
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Diagnostic Approach
Stabilisation of PatientPatient with Massive hemoptysis need rapid establishment of airway patency, prevention of suffocation and control of bleeding.
DiagnosisSecondary goal is to determine the site of bleeding and cause.
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Where is it from?Clinical Features Hemoptysis Pseudo Hemoptysis
Origin of blood Respiratory track Oral cavity, Larynx, esophageus, stomach, Factitious
Cough More likely Less likely Respiratory symptoms More likely Less likelyEsophagastric Symptoms Less likely More likelyAlcohol use, hepatic disease Less likely More likelyVomiting, Nausea Less likely More likelyHematemesis and malena Less likely More likelyColour of expectorated blood Bright red Brown or black Consistency of expectorate Clotted or liquid Coffee ground appearance Frothiness of expectorate Usually Never or seldom pH of expectorate Alkaline AcdicAlveolar macrophages in sputum Present Absent Food particles in expectorate Absent Present Asphyxia Common Unusual
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Detailed History for HemoptysisPulmonary SymptomsHemoptysis: quantity, duration, number of episodes Sputum: amount and quality Cough: timing with respect to hemoptysisDyspnea: duration; at rest or with exertionChest Discomfort: location, quality, durationNonpulmonary symptoms suggestive of underlying diseaseCardiac Disease:OrthopneaLeg edemaParoxysmal nocturnal dyspneaAngina
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Renal Disease:HematuriaEdema Rheumatologic Disease/vasculitis:Joint/muscle painsSkin rashRed/painful eyeSinus congestionEpistaxisWeaknessClaudicationInfectious disease or malignancy:FeverChillsNight sweatsWeight loss
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Past Medical HistoryPulmonary disease:Recurring respiratory tract infectionsChronic bronchitis Lung CancerTuberculosis (TB)BronchiectasisDeep vein thrombosis (DVT)/pulmonary embolism (PE)Pulmonary hypertension Radiation pneumonitis/XRTCardiac disease:CHFValvular heart diseaseThoracic aortic aneurysmRheumatologic disease:Wegener's granulomatosisSLE
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Renal Disease:Nephritis Gastrointestinal disease:Upper or lower gastrointestinal bleedingMedicationsAspirinNonsteroidal anti-inflammatory drugsAnticoagulantsSocial HistoryCigarettee smokingDrug/alcohol useOccupational exposuresTB exposure/+ PPDHIV testingTravel history
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Family HistoryHemoptysisGastrointestinal bleedingDVT/PERheumatologic disease
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Detailed Physical Examination for Hemoptysis
Part of Physical Examination
Finding and Relevance
Vital signs (Including orthostatics)
Positive orthostatic changes may suggest intravascular volume depletion, including that due to hemorrhage
General appearance
Anxiety, diphoresis as a result of the sight of expectorated blood itself or due to airway compromiseWasting and cachexia can be present with malignancy or AIDS
Eyes Subconjunctival hemorrhage may result from retching and vomiting
Nose Close inspection of the nasal mucosa (including the septum) may reveal a nasal source of bleeding.Saddle nose deformity can be seed in Wegener’s granulomatosis.
Mouth and throat Inspect the oral mucosa, toungue, and oropharynx for lesions which are actively bleeding or which appear to have bled recently oral ulcers may be seen in SLE or Behcet’s syndrome, both of which can be associated with hemoptysis due to pulmonary hemorrhage.
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Part of Physical Examination
Finding and Relevance
Cardiovascular Murmur of mitral stenosisLeft third heart sound in the appropriate setting suggests congestive heart failure Right ventricular gallop, a palpable pulsation at the left soundintercostal space (from a dilated left pulmonary artery), accentuation of the pulmonic component of the second heart sound all suggest pulmonary hypertension.
Respiratory System
Generalized crackles may be heard in cases of alveolar hemorrhage Generalized wheezing may be heard with acute exacerbations of chronic bronchitis Pleural friction rub may be present in cases of pulmonary embolism with infarction Lung field bruit may be present in cases of AVMInspiratory squeaks and rhonchi are often present with bronchiectasisA unilateral swollen leg is worrisome for DVT
Gastrointestinal Midepigastric discomfort with palpation may be present with peptic ulcer disease A small, nodular liver may be felt in cases of cirrhosis which may lead to the formation of esophageal varices.
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Part of Physical Examination
Finding and Relevance
Genitourinary system
Diffuse edema (particularly scrotal edema in a man) is often present in renal disorders such as nephritis
Rheumatologic system
Hot, tender, erythematous joints may be present in diseases such as SLE, Behcet’s syndrome, or Wegener’s granulomatosis
Skin Multiple telangiectasias suggest HHTPalpable purpura suggest vasculitisMalar rash is sometimes present in SLE
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Laboratory Evaluation Complete blood count with platelet countElectrolytes, BUN and creatinineLiver functions PT, PTTUrine analysis Arterial blood gases Drug levels when suspected Blood grouping and cross matching Sputum stain and culture for Myc. T.B. and Fungi
Cytology Bed side spirometry(Fitness of patient for surgery)Chest Roentgenogram Bronchoscopy BronchographyComputed tomography of chest Radio isotop scanning Angiography
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Chest Roentgenogram
Chest X-ray – suggestive of PathologyNormal Chest X-ray source of hemoptysis may be from larger bronchi, small focus within the parenchyma, or a site above the glottis.
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Chest X-ray Pulmonary Tuberculosis
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Bronchiectasis(Cystic Fibrosis)
Bilateral diffuseCystic ShadowesPeribronchial fibrosisProminent hilumHyperinflated chest
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Fungous BallLong standing cavity Containing round density (A) Mobile density Adjacent pleural reaction (B) - characteristic of aspergilloma
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Chest X-Ray Lung Abcess
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Old Chest X-Ray Pulmonary HemorrhageAcute onsetDiffuse bilateral alveolar infiltrates
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Chest X-ray Pulmonary Infarction
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Chest X-ray – solitary Pulmonary Nodule
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Chest X-ray - Foreign Body Aspiration
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Chest X-ray – Lung Cancer (Adenocarcinoma)
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Computed Tomography
A CT scan of the chest revealing a tumor in the Periphery which turned out to be TB. The patient Was 55 years old and presented with massive hemoptysis
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CT Scan-Fibrocavitarylung disease
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CT Scan Bronchiectasis
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CT Scan - ABPA• C.T. Scan at level of inferior
pulmonary vein demonstrates mucous plugging (black arrow) attenuation (straight white arrows) centrilobular nodules (arrow heads) bronchial wall thickening and bronchiectasis (curved arrows).
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C.T. Scan –BronchogenicCarcinoma
• These chest CT scan views demonstrates a large squamouscell carcinoma of the right upper lobe that extends around the right main bronchus and also invades into the mediastinum and involves hilar lymph nodes.
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Chest X-ray Pulmonary Embolism
• Note enlarged right main pulmonary artery (arrows) and massive main pulmonary artery trunk (arrowheads).
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CT Scan Pulmonary Embolism
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Chest X-Ray CT Scan
Wegner’s Granulomatosis
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Bronchoscopy (diagnostic)Fiberoptic bronchoscopy is most valuable diagnostic technique to evaluate the patient with hemoptysis.Bronchi two to three generations beyond the segmental level can be seen.Small biopsis can be obtained under direct vision from suspicious areas.Roentgenographic abnomalities lying in more peripheral areas can be entered using fluoroscopic guidance.Cytologic and bacteriologic studies can be performed on specimens obtained by brushing or lavage of deeper area.Many, investigators have favoured early bronchoscopy, that is during bleeding or within 48 hrs. of episode of hemoptysis.Studies have shown that bronchoscopy is more effective in localizing the site of bleeding if performed early (91% yield) than if performed late (50% yield)Some recommended diagnostic bronchoscopy in all smokers >40years with hemoptysis because of high risk of lung cancer.
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Diagnostic Procedures
Bronchoscopy
Flexible Fibreoptic Video BronchoscopeFlexible Fibreoptic Video Bronchoscope Rigid BronchoscopyRigid Bronchoscopy
Fibreoptic bronchoscopyrigid bronchoscope
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Rigid Bronchoscope • Set of stainless steel ventilating and non ventilating rigid
tubes, rigid forceps and rigid bronchoscope with indwelling hopkins lense 00 telescope.
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Rigid Bronchoscopy Versus Fiberoptic Bronchoscopy
Rigid bronchoscopy includes a rigid metal tube that permitted either spontaneous or mechanical ventilation.With rigid bronchoscope, various types of telescopic rods equipped with circumferential illumination, permit direct and magnified visualization. Various diagnostic and therapeutic accessories can be inserted through rigid bronchoscope while patient remains ventilated.Flexible bronchoscope to a large extent has replaced rigid bronchoscope for both diagnostic and some therapeutic indication.
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Although optical resolution of early fiberopticbronchoscope was inferior to that of rigid devices. Their flexibility, ease of manipulation, and simplicity of use, under topical anesthesia, have made flexible bronchoscopy the primary endoscopicprocedure in pulmonary diseases.Flexible bronchoscopes are more fragile and more prone to damage then are rigid metal instruments.
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Bronchoscopy
An actively bleedingAn actively bleedingtumor in the wall of thetumor in the wall of theBronchus seen using a fiberBronchus seen using a fiber--Optic bronchoscopeOptic bronchoscope
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Bronchoscopy
• Right upper lobe obstructed by extrinsic compression
• Fuzzy brush in left upper lobe
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Fiberoptic Bronchoscopy Versus HRCT
Fiberoptic bronchoscopy and HRCT are complementary studies.HRCT demonstrates all tumors seen by bronchoscopy as well as several which were beyond bronchoscopic range.HRCT will not detect bronchitis or subtle mucosal abnormalities seen by bronchoscopy.HRCT particularly useful in diagnosing bronchiectasisand aspergillomas. Bronchoscopy was diagnostic of bronchits and mucosal lesion such as kaposis sarcoma.
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Bronchography
Bronchography is not used as frequently today is evaluating hemoptysis as in the past.Major value of bronchography is in establishing the presence and extent of bronchictasis.Clots within the bronchial lumen may cause contour irregularities and failure of normal fillings. So procedure is best performed, several weeks after bleeding has stopped.
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Bronchiectasis, Bronchogram: Findings
Findings:Normal upper and middle lobesThe branches to the lower lobe are slightly dilated and there is a lack of branch filling.
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Angiography
It is the procedure of choice for evaluation of pulmonary vascular bed.Important for diagnosing conditions like
Pulmonary embolism Pulmonary AV fistulaDilated and tortuous vessel
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Angiography a) Normal b) There is a Filling defect in
right and left pulmonary artery as well as blockage of their peripheral branches specially to superior lobe both sides, as well as branches to the inferior lobe at both sides.Recognize dilatation of main pulmonary artery caused by increase pulmonary artery pressure
a)
b)
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Radioisotope Scanning Ventilation perfusion scanning is useful in diagnosing pulmonary embolism and infarction
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Algorithm For Evaluation of Hemoptysis
ENT/GI source History/Physical exam
Appropriate Evaluation Consult ENT/GI
Quantity of blood
Non-massive massive
Ensure airway patencyStabilize hemodynamicsadmit to hospital consider ICU monitoring consult specialty service:- Pulmonary medicine- Thoracic surgery
PE Suspected
CXR
V/Q scan or CT angiogram
NO
YES
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CXR
Normal Mass Diffuse process AVMLocalized BronchiectasisCavitary lesionHRCTRisk factors for malignancy:
-Age>40+-40+pack years smoking-Hemoptysis>1 week
Hx consistent with bronchitis
Consider either bronchoscopyor HRCT
No further evaluation
Consider bronchoscopy
Rebleed
Observe
Treat as bronchitis
Bronchoscopy
Specific diagnosis
HRCT
Specific diagnosis
Treat
Consider immediate referral to interventional radiology for angiography and bronchial artery embolization
Consider either HRCT or bronchoscopy for further evaluation after angiography
YES
YES
YES
YES
YES
NO
NO
NO NO
NO
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Management of
Hemoptysis
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Goal Of Therapy
Stop the bleeding Prevent aspiration Treat the underlying cause
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Initial Management Insuring adequate airway protection, ventilation and cardiovascular function.Patients with poor gas exchange, rapidly ongoing hemoptysis, hemodynamicinstability, or severe shortness of breath should be orally intubated.Protection of the non bleeding lung
Placing the bleeding lung in a dependent position may prevent blood spillage into the non bleeding lungPlacement of a single lumen endotracheal tube into opposite mainstem bronchus.Placement of double lumen endotracheal tube
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Drugs to control hemoptysisCOAGULANTS
These are the agents which promote coagulation and are indicatedin haemorrhagic states.
1. Vitamin K :K1 (From plants, Fat soluble) – Phytonadione (Phylloquinone)K2 (Produced by bacteria) – MenaquinonesK3 (Synthetic) Fat Soluble – Menadione
Water Soluble – Menadione Sod Bisulfite– Menadione Sod diphosphate
2. Miscellaneous : Fibrinogen (Human)Anti Haemophilic Factor Adrenochrome monosemicarbazoneRutin, Ethamsylate.
3. Local Haemostatics Thrombin, fibrin, gelatin foam, (Styptics) russels viper venom, vasoconstrictors
astringent
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Vitamin K – It acts as a cofactor at a late stage in the synthesis by liver of coagulation proteins-Prothrombin, factors VII, IX, X. Vitamin K is Metabolized in Liver by side chain cleavage and glucronide conjugation, metabolites are excreted in bile and urine. Fibrinogen – Fibrinogen fraction of human plasma is employed to control bleeding in hemophilia, anti hemophilic globulin (AHG) deficiency.Dose – 0.5 gm infused IV Anti Hemophilic Factor – It is concentrated human AHG Prepared from pooled human plasma. It is indicated in hemophilia and AHG deficiency. Dose – 5- 10 u/kg. IV infusion repeated 6-12 hrly.
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Adrenochrome Monosemicarbazone – It is believed to reduce capillary fragility, control oozing from raw surfaces and prevent microvessel bleeding Dose – 1 - 5 mg. oral, IMInteractions: Antihistaminics reduce the efficacy of Adrenochrome MonosemicarbazoneContraindications: Hypersensitivity Rutin – It is a plant glycoside claimed to reduce capillary bleeding. Dose – 60mg BD – TDS along with Vitamin K which facilitate its action. Its efficacy is uncertain. Ethamsylate – It reduces capillary bleeding then platelets are adequate. It inhibits prostacycline synthetase enzyme resulting in the prevention of prostacycline induced vasodilationand anti platelet aggregation. Contraindication: Hypersensitivity, porphyria, h/o of Thombocytopenic purpura or hemophilia.Side Effects – Nausea, Rash, Headache, Fall in BP (Only after IV Inj.)Dose – 250 – 500 mg BD – TDS oral / IV
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Botropase – it is an aqueous solution of haemocoagulase isolated from venom of BothropsJararaca or Bothrops atorox containing 0.9% of sodium chloride.Contraindication: Arterial Thrombosis, Venous Thrombosis Dose – Adult : 1ml IM SOS or upto 2-3 times a day
Children: 0.5-0.75cc according to age of child and seriousness of haemorrhage
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Bronchoscopy (Therapeutic)
Lavage with iced saline Application of topical epinephrine (1:20,000) vasopressin, thrombin, or a fibrinogen thrombin combination. None of these methods has been tested in controlled trials.Localized bleeding mucosal lesion - laser threapy or electrocautery.Baloon tamponade of the bleeding site Fogatry balloon cathater can be passed through the instrument, inflated and the bronchoscope removed leaving the wedged catheter in place.
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Insertion of cuffed endotracheal tube into the non bleeding lung.(inflation of balloon protects the lung from aspiration)A double lumen carlen’s type endotracheal tube is used for simultaneous lavage of bleeding site and maintainence of ventilation, in other lung.
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Bronchoscopy
• Primary Squamous Cell Carcinoma in Trachea
• During Laser Therapy
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Bronchoscopy
• Adeno Carcinoma in Distal Trachea
• Endobronchial Tumor in left main bronchus
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Arteriographic EmbolizationBronchial arteriography with embolization is another alternative under selected circumstances.Small pieces of gelfoam are introduced into bronchial vesselsLong term success is variable, as even with complete occlusion of bleeding artery recanalization of vessel or development of collateral blood supply may occur with resulting relapse.Arteriographic embolization stops bleeding in more than 85% of the time Embolization is only “semi definative” because rebleeding occurs in 10-20% of patients over next 6 to 12 months.
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Surgery
Surgical resection is the final alternative. Patients pulmonary functions must permit resection. Relative contra indications
Sever underlying pulmonary disease, active TB, diffuse underlying lung disease (cystic fibrosis, multiple AVM’s, multifocal bronchiectasis and diffuse alveolar hemorrhage)Morbility and mortality are significantly greater with emergency surgery for persistent massive bleeding compared with elective surgery.
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Management of Minor Hemoptysis
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Management of Massive Hemoptysis
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Recommendations First stablize the patient and then perform early bronchoscopy along with other appropriate diagnostic studies. If the patient continuous to bleed aggressively, arteriography is most reasonable for localization and therapy. If bleeding persists despite embolization or if patient is too ill to go to arteriography, then blockade therapy or double lumen tube should be considered.While surgery remains the only truly definitive therapy. It should not be used in the acute emergent setting unless it cannot be avoided.
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Complications
As little as 150ml of blood is enough to cause asphyxation and death.Mortality is due to asphyxation, not exsanguinationHypotension Anemia
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Special Circumstances
Warn patient who have had multiple episodes of hemoptysis just because one episode was self limited, does not mean that next episode will behave same. Patients with AVM and telengiectasia are at risk of recurrence and should be adviced.Patient with CF and chronic bronchiectasisshould be advice to contact physician with any bout of hemoptysis.Pregnancy and its associated increase in blood volume can exacerbate condition associated with hemoptysis.
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Follow Up
If no cause is found and malignancy or systemic disease is not suspected, instruct in patient to return in 2 to 4 week to be reevaluated.
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Self Care Instructions
Contact your physician whenever you cough up blood.Remember each episode of coughing of blood is unpredictable and next episode may be much more difficult to control than any previous episode.
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