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pitutary Disorder.pptx

  1. PITUITARY DISORDERS & ADRENAL TUMORS SUBMITTED TO  Anita ma’am  Faculty of C.O.N VMMC & Safdarjung hospital SUBMITTED BY  Sirsha De  Bsc(h)nursing 2nd year  Enroll no.  04750306618
  2. Pituitary gland is referred to as the master gland because of the influence it has on secretions of hormones by other endocrine gland.
  3. CAUSES OF DISORDER OF PITUITARY GLAND Mainly of 2 reasons:  Hyperactivity  Hypoactivity
  4. HYPERPITUITARISM (HYPERACTIVITY)  Having anoveractive pituitary gland is called hyperpituitarism.  Mostcommonlycausedbynoncancerous tumors.  This causes glandtosecrete toomuchofcertain kinds of hormonesrelated to growth,reproduction andmetabolism. DISORDERS CAUSED :  Gigantism  Acromegaly  Acromegalic gigantism  Cushing syndrome
  5. GIGANTISM
  6.  Pituitary glandsecretesgrowthhormone,whichis responsible for overallgrowthanddevelopmentof humanbodyduring childhood.  Whentoomuchgrowthhormoneis secretedthat augmentsthe growthof muscle,bonesandconnectivetissuein childhoodor adolescencebeforetheendof thepuberty,thisconditionis calledGigantism.  Theresult is anincreasein heightandformationofadditional soft tissues. Characterizedby: • Excessgrowthof body(sometimesmoreintrunkandlimbs). • Averageheightis approximately7-8feet.
  7. ETIOLOGY Inmost of thecases,noncancerous pituitary glandtumor is caused duetogigantism.  McCune-Albright syndromeis adisorder that causes unusual growth of bone tissues, gland irregularities and patches of light andbrownskin.
  8.  Carneycomplexisararehereditaryconditionwhichis characterised bymultiple benigntumorsmostoften affecting heart,skin andendocrinesystemand abnormalities inskinpigmentationresultinginspotty appearancetotheskinof affectedareas.
  9.  MultipleEndocrineNeoplasiaType1is alsoa hereditary condition whichcausetumorsin the pancreas,parathyroidglandsandpituitarygland.  Neurofibrinomatosisisahereditary diseasethat causestumorsinnervoussystem.
  10. CLINICAL FEATURES Childwill bemuchtaller thanotherchildrenofthesameage.Partsofbodymaybe visiblybigger thanothers. 1. Largehandandfeet 2. Thicktoesandfingers 3. Abulgingjawandforehead 4. Improperfacial features 5. Childrensufferingfromgigantismmayshowlargeheads,lipsortongue. 6. Somemayexperiencevisionproblems, headachesandnauseafromtumors. 7. Onsetofpubertyin childrenmaybedelayed. 8. Irregularitiesinmenstrual cycle 9. Deafness Thesymptomsofgigantismdependonthesizeofpituitaryglandtumors.
  11. DIAGNOSTIC EVALUATION  Historycollection  CTscan  MRI scan(to rule out pituitarytumor)  Oral GlucoseT oleranceT est (to rule out hyperglycemia)  Bloodtest (to rule out growthhormonelevel,highprolactin level, increaseininsulinlevel&growthfactors)
  12. MANAGEMENT  Gigantism requires early detection &strongtreatmenttoprevent excessproductionof growthhormoneandto improvelife expectancy.  Surgeriesinclude- ⚫ TransfenoidalAdenomectomy ⚫ Hypophysectomy Surgeryis thefirst line oftreatmentwith theobjective of removing thetumorto minimize growthhormonelevels &reducethe pressureonthenerves.  Radiation Therapyis anotheroptionif surgerycannotbe implemented. Radiationtherapycantakeseveral years.  ½of the clientsgetcontrolled growthhormonein 5-10years.
  13. ACROMEGALY
  14. Acromegaly is achronicmetabolic disorder in whichthereis a secretionoftoomuchgrowthhormone&thebodytissues graduallyenlarge. ETIOLOGY:  Pituitary tumors Benign tumor,adenoma of pituitary gland  Non Pituitary tumors Benign or cancerous tumor of the other part of body such as lungs,pancreas,adrenal glands.  Excessgrowthhormone&growthhormonereleasingfactorsinthe bloodlevels results in changes in theappearance &functions ofthe body.
  15. SYMPTOMS  Handswelling,sausage likefingers  Increaseinshoesize  Diaphoresis  Thickening of thefacial features  Increaseprominence in jaw&forehead  Thickened skin  Swelling of tongue  Arthritis  Sleepapnoea  Headache  Partial loss of vision  Pain,numbness,tingling weaknessin hands&wrists  Increased thirst nurination,hyperglycemi,heart failure etc
  16. CONTINUED: • Thyroid, parathyroid andadrenal glands showshyperactivity. • Hyperglycemia andglycosuria • Hypertension • Headache • Visual disturbance-BITEMPORAL HEMIANOPIA
  17. DIAGNOSTIC EVALUATION  Historycollection  Physical examination  CTscan,MRI scanof head,chest,abdomen, pelvis,adrenal gland & ovaries. MANAGEMENT:  Goalof treatment is torelieve &reverse thesymptomsof acromegaly.  Surgical treatment is the1st line treatment ⚫ TRANSPHENOIDALHYPOPHYSECTOMY Transsphenoidal meansthrough the sphenoid sinus. This is the air sinus (cavity) at the back of your nose. Weremove the pituitary tumour through thenose.Hypophysectomy referstothepituitary gland.
  18.  RADIATION THERAPY: Isanoptiontoreducethesizeofthe tumor&hencereducetheproduction of growthhormone. Radiationtherapyfocusesonhighintensityradiationatpituitarytumorto destroytheabnormal cells.  Givenin2forms: External beam&stereotactic  DRUG THERAPY: ⚫ Somatostatinanalogs: reduce growthhormonerelease ⚫ Dopamine agonist: prevents thereleaseof growthhormone ⚫ Growthhormonereceptor antagonist: blocks theeffectofgrowth hormoneeg,Pegvisomant
  19. HYPOPITUITARISM(HYPOACTIVI TY)  Hypopituitarism(pituitary insufficiency) is ararecondition in whichyour pituitaryglanddoesn’t makeenough of certain hormones.  Canbecauseddue topituitary tumorswhich when increases its size maycompressanddamagepituitary tissues, interfering withhormoneproduction.  DISORDERS CAUSED: • Dwarfism • Acromicria • Simmond’s disease
  20. DWARFISM It is anendocrine disorder resulting fromhyposecretion of growth hormoneduring critical developmental period in children.
  21. TYPES OF DWARFISM 1. Proportionate 2. Disproportionate ⚫ Short limb ⚫ Short trunk 3. Asymmetry
  22. CAUSE OF DWARFISM  Reduction inthegrowthhormonein infancy or early childhood.  Occurs becauseof following reasons:  Tumorofpituitarygland,whichcompress& destroysthenormal cell secreting growth hormone  Defof GHRHbyhypothalamus  Defof somatomedinC  Atrophyor degenerationof acidophilliccells intheanterior pituitary  Lesionof anterior pituitaryduetoinfectionor injury resultsinhyposecretion of growth hormone  Geneticdisorder  Hereditary
  23. SIGNS AND SYMPTOMS  Stunted skeletal growth  Maximumheight approximately 3feet  Headbecomesslightly larger inrelationtobody  Mental activityisnormal without anydeformity  Reproductive systemis notaffected dueto lack ofgrowth hormonebutin Panhypopituitarism puberty is notobtained due tolack of gonadotrophic hormone.
  24. DIABETESINSIPIDUS  Diabetes insipidus is adisorder oftheposterior lobe ofthepituitary gland characterized byadeficiency ofADHorvasopressin.  Greatthirst,polydipsia &large volumeof dilute urine characterize the disorder.
  25. TYPES OF DIABETES INSIPIDUS 1. Central diabetesinsipidus 2. Nephrogenicdiabetesinsipidus 3. Psychogenic diabetesinsipidus 4. Gestational diabetesinsipidus
  26. CAUSES  Central diabetesinsipidus: ⚫ Headtraumaor surgery ⚫ Pituitary or hypothalamictumor ⚫ Intracerebral occlusionor infection  Nephrogenicdiabetesinsipidus: ⚫ Systemicdiseaseinvolvingkidney:- ⚫ Multiplemyeloma ⚫ Sicklecell anemia ⚫ Polycystickidneydiseases ⚫ Pyelonephritis ⚫ Medicationsuchaslithium
  27. PATHOPHYSIOLOGY  Central diabetesinsipidus: ⚫ Lossofvasopressinproducingcells ⚫ CausingdeficienciesinADHsynthesis ⚫ DeficiencyinADH,resultingin aninability to conservewater ⚫ Leadingtoextremepolyuria& poiydipsia  Nephrogenicdiabetesinsipidus: ⚫ Depressionof aldosteronereleaseorinability of nephrons torespondto ADH,causingextremepolyuriaandpolydipsia.
  28. SIGNS AND SYMPTOMS  Polyuria with urineoutputof 5to15Ldaily.  Polydipsia,especially adesire for coolfluids.  Markeddehydration,asevidencedbydrymucous membrane,dryskin&weightloss.  Anorexia&epigastricfullness  Nocturia &relatedfatigue from interrupted sleep.
  29. DIAGNOSTIC TEST RESULTS  Highserumosmolarity,usually above300mosmol/kg of water.  Lowurineosmolarity ,usually50to200mosmol/kgof water.  Lowurine–specificgravityof lessthan1.005. Management:theobjectiveof therapyare: 1 . T oreplaceADH,which is usually alongtermtherapeutic programme. 2 . T oensureadequatefluidreplacement 3 . T oidentify&correct theunderlyingcause.
  30. TREATMENT:  ReplacementofvasopressintherapywithintranasalorI.V DDA VPC(desmopressin acetate).  Correction ofdehydration andelectrolyteimbalance.  Thiazolediuretic increaserenal water reabsorption  Restriction of salt &proteinintake. NURSING MANAGEMENT: Thenurse reviews thepatient history& physical assessment.  Thenurseis responsible toeducate thepatient, family &other caregivers about follow upcare,prevention of complication &emergencymeasures.  Thenurseshould demonstrate andmaketheclient understand about his medical condition.
  31. SIADH-SYNDROME OF INAPPROPRIATE ANTI DIURETIC HORMONE  SIADH,isadisorderof impaired waterexcretion causedbytheinability to suppress secretionsordue toexcessivesecretions&actionsof anti diuretic hormone.  If water intakeexceedthereducedurineoutput i.e concurine,theensuringwaterretentionleadstothe development of hyponatremia.  MostcommoncauseofHypoosmolarEuvolemic Hyponatremia.
  32. ETIOLOGY 1. Neoplasms 2. Carcinomas of lung,duodenum,ovary,bladder,ureter,any other neoplasms. 3. Thymoma 4. Mesothelioma 5. Bronchial adenoma 6. Carcinoid gangliocytoma 7. Ewing’scarcinoma
  33. PATHOPHYSIOLOGY
  34. DRUGS 1 . V asopressinor demopressin 2. Chloropropamide 3 . Oxytocinhighdose 4. Vineristine 5. Carbamazepine 6. Nicotinephenothiazines 7. Cyclophosphamide 8. Serotonin reuptakeinhibitor ,etc.
  35. INVESTIGATION TESTS FOR DIAGNOSIS OF SIADH 1. SerumNa+,KClandbicarbonate 2. Plasmaosmolarity 3. Urinesodium 4. Urineosmolarity 5. Serumcreatinine 6. Bloodureanitrogen 7. Bloodglucose 8. Serumuricacid 9. Serumcortisol 10. Thyroidstimulatinghormone
  36. MANAGEMENT  Fluidrestriction: Is amainstay of therapy in mostpatient with SIADH,with asuggested goal,intake ofless than800ml/ day. Theassociated-vewaterbalanceinitially raisestheserumNaconc towards normal&withmaintenance therapy in chronic SIADH,prevents further reduction inserumsodium.  Intravenous saline: Symptomaticor resistant=Hyponatremia in patient with SIADHoften requires theadministration of NaCl.
  37. NURSING MANAGEMENT  Closemonitoringof fluidintake&output  Dailyweight checkup  Urineandbloodinvestigationstobemeasuredonregular basis,inorder toindicateanyrisk for theclient.  Supportive measuresandexplanationof procedureand treatment will assist thepatient inmanagingthisdisorder.
  38. ADRENALGLAND
  39. INTRODUCTION  Eachpersonhas2adrenal gland,oneattached to superior part of eachkidney .  Eachadrenalglandis,in reality,two endocrineglands with separateindependent function.  Adrenal glandconsist of 2parts: 1. Adrenalmedulla 2. Adrenalcortex
  40.  Adrenalmedulla: Presentat thecentreof thegland, secretedcatecholamines andtheouterportion of gland.  Adrenalcortex: it secretessteroid hormones.Thesecretion ofhormonefromtheadrenal cortex is regulatedbythe hypothalamus-pituitary –adrenal axis. Hypothalamus secretescorticotrophinreleasing hormone(CRH),which stimulates thepituitary glandto secreteACTH,which in turn stimulates theadrenal cortex to glucocorticoid hormones(cortisol). Increasedlevel of adrenal hormone inhibit theproductionof CRH&ACTH. This systemisanexampleof –vefeedbackmechanism.
  41. ANATOMICAL STRUCTURE OF ADRENAL GLAND  Right adrenal glandistriangular inshape  Left adrenal glandiscrescent inshape.  Left adrenal gland is moreelongated thanright &lie inmoresuperior position thantheright one.  3TYPESOFSTEROIDHORMONEPRODUCEDBYADRENALCORTEX ARE:- 1. Glucocorticoids 2. Mineralocorticoid 3. Sexhormones  ADRENALCORTEXISDIVIDEDINTO3ZONES:- 1. Zonaglomerulosa 2. Zonafasciculata 3. Zonareticularsis
  42. ADRENAL GLAND TUMORS Dividedintotumorsarisingfromadrenal glandcortex & arisingfrommedulla:-  Adrenal cortex:- 1. Cushingsyndrome 2. Primary hyperaldosteronism(Conn’s disease) 3. Adrenal carcinoma  Adrenal medulla:- 1. Pheochromocytoma 2. Neuroblastoma
  43. CUSHINGSYNDROME
  44.  Hypersecretion of cortisolcausedbyendogenous production of corticosteroids isknown asCushing’s syndrome.  ThemostcommoncauseisACTHdependentcushing syndrome,resultingfrompituitary adenomathatsecrete excessiveamount ofACTH.  Adrenocortical carcinoma&bilateral macronodularhyperplasia representrarecauseof hypercorticolism. CLINICALSYMPTOMS:- Atypical patient ischaracterizedby ⚫ Afacial plethora ⚫ ABuffalohump ⚫ Amoonface
  45. CLINICAL FEATURES OF CUSHING SYNDROME  W eight gain/central obesity  Diabetes  Hirusitism  Hypertension  Skinchanges(abdominalstriae)  Muscleweakness  Menstrual irregularity  Depression  Osteoporosis  Hypokalemia
  46. DIAGNOSIS  Biochemical test  Radiological investigation NURSING MANAGEMENT  Decreaseriskof injury  Decreasing risk of infection  Preparing thepatient for allergy test.  Encouragingrest&activity  Promotingskinintegrity  Improvingbodyimage
  47. PRIMARY HYPERALDOSTERONISM (CONN’S DISEASE)  Primary aldosteronism (PA), also known as primary hyperaldosteronism or Conn's syndrome, refers to the excess production of the hormone aldosterone from the adrenal glands, resulting in low renin levels.[1] This abnormality is caused by hyperplasia or tumors. Many suffer from fatigue, potassium deficiency and high blood pressure which may cause poor vision, confusion or headaches.
  48. Primaryhyperaldosteronism(PHA)is definedbyhypertension, hypokalemia&hypersecretionof aldosterone.  InPHA,plasma reninactivity is suppressed.  Amongpateients with hypertension theincidenceof hypokalemia.  PHAis approximately 2%recent studies haverevealed that upto12%ofhypertension patient havePHA,with normal potassiumlevels. CAUSESOFPHA:- 1. Aldosteroneproducingadencema. 2. Bilateraladrenalhyperplasia(ideopathic hyperaldosteronism) 3. Aldosterone-producingadrenocortical carcinoma.
  49. CLINICAL FEATURES 1. Most patient arebetween30-50yearsof agewith female predominance. 2. Apartfromhypertension &hypokalemia,patient complains of nonspecificsymptoms. 3. Headache,muscleweakness,cramps,polyuria,intermittent paralysis,polydipsia &nocturia. DIAGNOSIS  Assessment of potassiumlevels  Antihypertensive&diuretic therapy  Oncebiochemical diagnosisisconfirmed,MRI or CTscan canbeperformed.
  50. ADRENOCORTICALCARCINOMA
  51.  Adrenocorticalcarcinomaisararemalignancywitha incidenceof 1-2casesper10lakhspopulationperyear.  Avariablebut generally poor prognosis.  Aslight femalepredominanceisobserved(1:5:1)  1st peakin childhood &asecondbetween4th or5thdecade.
  52. PATHOLOGY 1. Criteriafor malignancy aretumor size,thepresence of necrosisor haemorrhage&microscopic features suchascapsular or vascular invasion. 2. Theseshould beassessedin termsof microscopic diagnosticscore. 3. Additional informationis providedby immunohisto chemistry. 4. Macroscopic features commonly multinodularity & hexogenous structure.
  53. DIAGNOSIS 1. Dexamethasonesuppressiontest 2 . MRI &CTscan 3 . MRI angiography 4 . WHOclassification- 1. Tumor <5cm(stage1) 2. >5cm(stage2) 3. Locallyinvasivetumor(stage 3) 4. Tumor withdistant metastasis (stage4) TREA TMENT ⚫ Completetumor resection ⚫ Laproscopicadrenalectomy ⚫ Adjuvant radiotherapy
  54. PHEOCHROMOCYTOMA
  55.  Atumor beginswhenhealthycellschange&growout of control formingamass.  Atumor canbecancerousor benign.  Acanceroustumor ismalignant, measuringit cangrow& spreadtoother partsof body .  Abenigntumor meansthetumor cangrowbut will not spread.  Theadrenal glandtumor cansometimes producetoo much ofhormone,Whenit does,thetumoris called”functioning tumor”.  It iscatecholamines-secretingneoplasmsassociatedwith hypertension of chromaffin cellsofadrenal medulla.
  56. ETIOLOGY  Medullary thyroidcarcinoma  Parathyroidhyperplasia  Emotional &physical stress  General factor Increasedor decreased secretionof hormone.
  57. CLINICAL FEATURES  Hypertension  Posturalhypotension,thisresultsfromvolumecontraction  W eight loss  Pallor  Fever  Tremor  Neurofibromas  Patchesof cutaneouspigmentation  T achyarrhythmias  Pulmonaryoedema  Cardiomyopathy
  58. LABORATORY SIGNS  Hyperglycemia  Hypercalcaemia  Erythrocytosis 5’H’s SYMPTOMS 1. Hypertension 2. Headache 3. Hyperhidrosis 4. Hypermetabolism 5. Hyperglycemic Classically,pheochromocytoma showsSwisscheese configuration.
  59. NURSING MANAGEMENT  Educatingpatient about self care ⚫ During preoperative&postoperativephasesof care ,the nurse educatethe patient aboutfollow upmonitoringto ensurethat pheochromocytomadoesnot reactivate.  Nurseprovideverbal &writteninstructionsabout ⚫ Theprocedurefor collecting 24hrs urine specimento monitor urinefor catecholamineslevel.  Continuingcare ⚫ Thepatient is scheduled for periodic follow up appointments to observefor return of normal bloodpressure&plasmafor urine levelsof catecholamines.
  60. TREATMENT 1. Laparoscopic resection is nowaroutine treatment for pheochromocytoma. 2. If thetumor islarger than8-10cmor radiological signsof malignancy aredetectedanapproach shouldbeco
  61. SUMMARY  The presentation includes the Pituitary disorders ⚫ Gigantism ⚫ Acromegaly ⚫ Dwarfism ⚫ Diabetes insipidus ⚫ SIADH Adrenal tumors ⚫ Cushing syndrome ⚫ Primary hyperaldosteronism ⚫ Adrenocortical carcinoma ⚫ Pheochromocytoma Their causes,clinical features,diagnosis,treatment and management have also been covered.
  62. BIBLIOGRAPHY  Brunner’s & Suddharth’s text book of MEDICAL SURGICAL NURSING 13th edition.  https://www.endocrinweb.com  https://www.cancer.org.com  www.slideshare.com
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