Salon a 13 kasim 11.30 12.45 murat sungur-ing
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Transcript of Salon a 13 kasim 11.30 12.45 murat sungur-ing
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Is Is Hypercholerima Hypercholerima
Important ?Important ?Murat Sungur, MDMurat Sungur, MD
Erciyes University Medical SchoolErciyes University Medical SchoolDepartment of Internal Medcine.Department of Internal Medcine.
Division of Intensive Care Medicine.Division of Intensive Care [email protected]@erciyes.edu.tr
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What is standard What is standard intravenous solution?intravenous solution?
Not Normal
Not Standard
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An important anion in extracellular fluidAn important anion in extracellular fluid
Determinant of extracellular fluid volume with sodiumDeterminant of extracellular fluid volume with sodium
Responsible for acid base equilibrium, resting membrane potential Responsible for acid base equilibrium, resting membrane potential
and plasma oncotic pressureand plasma oncotic pressure
Exist in body as Potasium chloride and Sodium chloride Exist in body as Potasium chloride and Sodium chloride
Normal plasma concentration is 97-107mEq/L.Normal plasma concentration is 97-107mEq/L.
Absorbed in the first part of small intestine with bicarbonate Absorbed in the first part of small intestine with bicarbonate
eexchange. xchange.
Eliminated trough urine, feces and sweating Eliminated trough urine, feces and sweating
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Chloride loadChloride load Chloride rich fluids: NS, colloidsChloride rich fluids: NS, colloids
Water loss (in excess of chloride)Water loss (in excess of chloride) Skin loses: fever, exerciseSkin loses: fever, exercise Extrarenal: diarrhea, burnsExtrarenal: diarrhea, burns Renal loses: DI, osmotic diuresis, diureticsRenal loses: DI, osmotic diuresis, diuretics
Increase in tubular chloride reabsorptionIncrease in tubular chloride reabsorption Renal tubular acidosisRenal tubular acidosis Early renal failureEarly renal failure Post hypocapniaPost hypocapnia Ureteral diversionsUreteral diversions
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Troubles with using IV 0.9 % salineTroubles with using IV 0.9 % saline
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Troubles with using IV 0.9 % salineTroubles with using IV 0.9 % saline
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Recommendation 1 Because of the risk of inducing hyperchloraemic
acidosis in routine practice, when crystalloid resuscitation or replacement is indicated, balanced salt solutions e.g. Ringer’s lactate/acetate or Hartmann’s solution should replace 0.9% saline, except in cases of hypochloraemia e.g. from vomiting or gastric drainage.
Evidence level 1b1-6
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We do not know if normal saline is We do not know if normal saline is harmful or nor even if it causes harmful or nor even if it causes hyperchloremic metabolic acidosishyperchloremic metabolic acidosis. .
Liu B, Finfer S: Intravenous fl uids in adults undergoing surgery [editorial].Br Med J 2009, 339:3-4.
1. Acidosis occurs with high volumes of normal saline infusion and it is related with chloride load. 2. There are no adequate studies showing that hyperchloremia is clinically important even though saline infusion have some side effects.Handy JM, Soni N: Physiological eff ects of hyperchloraemia and acidosis.Br J Anaesth 2008, 101:141-150
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Plasma ElectroneutralityPlasma Electroneutrality
Normal SID = 40 – 42. < 40 acidosis> 42 alkalosis
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Normal Saline InfusionNormal Saline Infusion
6000 ml normal 6000 ml normal saline infusionsaline infusion
Anesthesiol 1999, 90:1265-1270.
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161161±±67 ml 67 ml crystalloidcrystalloid
Crit Care Med 2007; 35:2390–2394
Effects of given NaCl on unmeasured anions, albumin and base excess
Normal Saline InfusionNormal Saline Infusion
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HES 130/0.4HES 130/0.4
Extrapolation from the studies:Extrapolation from the studies: 50 ml/kg HES = -3.5 Ba50 ml/kg HES = -3.5 Basese excess excess
Cardiovascular surgery patientsCardiovascular surgery patients HES + HES + NSNS or or HES + Ringer lactateHES + Ringer lactate
Chloride 110 vs. 112 mmol/L Chloride 110 vs. 112 mmol/L Maximum base excess difference 2 mmol/LMaximum base excess difference 2 mmol/L
Crit Care 2006, 10:176.
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Chloride and Chloride and KidneysKidneys
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Intrarenal infusionIntrarenal infusion
J Clin Invest 1983, 71:726-735
Renal Effects of Renal Effects of HyperchloremiaHyperchloremia
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Renal Effects of Renal Effects of HyperchloremiaHyperchloremia
Intrarenal infusionIntrarenal infusion
J Clin Invest 1983, 71:726-735
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Afferent arteriolar vasoconstriction Afferent arteriolar vasoconstriction and hyperchloreemiaand hyperchloreemia
Hypertension. 1998;32:1066-1070
Renal Effects of Renal Effects of HyperchloremiaHyperchloremia
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Hyperchloremia and Hyperchloremia and VasoconstrictorsVasoconstrictors
Br. J. Pharmacol. (1993), 108, 106-110M
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Normal Saline may be Normal Saline may be goodgood
Healthy Healthy volunteers. NS and volunteers. NS and LR infusionLR infusion
280
285
290
295
300
SF Ringerlaktat
Osm
olar
ite
7.3
7.35
7.4
7.45
SF RLp
H
Anesth Analg 1999;88:999 –1003
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NS vs. Ringer LactateNS vs. Ringer Lactate
Ringer lactateRinger lactate Osmolarity: 273 mOsm/LOsmolarity: 273 mOsm/L Real osmolarity: 254 mOsm/LReal osmolarity: 254 mOsm/L
Not fully ionizedNot fully ionized
Normal salineNormal saline Osmolarity: 308 mOsm/LOsmolarity: 308 mOsm/L Fully ionizedFully ionized
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During renal transplantationDuring renal transplantation
NS vs. Ringer LactateNS vs. Ringer Lactate
Serum potasium concentrationLR NS
•NS group•31 % acidosis requiring bicarbonate therapy
•LR group•None
Anesth Analg 2005;100:1518 –24
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NS vs. Ringer LactateNS vs. Ringer Lactate
During renal transplantationDuring renal transplantation
Anesth Analg 2005;100:1518 –24
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NS vs. PlasmalyteNS vs. Plasmalyte
Healthy volunteers. Crossover study. 2 L.Healthy volunteers. Crossover study. 2 L.
Ann Surg 2012;256:18–24
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Metabolic effectsMetabolic effects
Ann Surg 2012;256:18–24
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Ann Surg 2012;256:18–24
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Ann Surg 2012;256:18–24
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In ConclusionIn Conclusion
No significant differences in creatinine, Variations have been reported and only
slight differences in NGAL, not clinically relevant,
There is no convincing difference between isotonic saline strategies and balanced strategies in terms of renal function
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Abdominal discomfort reported to be more often Abdominal discomfort reported to be more often in patients receiving NS as compared to LR. in patients receiving NS as compared to LR.
Anesth Analg 1999;88:999 –1003
Hyperchloremia and Hyperchloremia and Gastrointestinal SystemGastrointestinal System
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Gastric mucosal Gastric mucosal perfusionperfusion
Postoperative pts.Postoperative pts. NS vs. Balanced fluidsNS vs. Balanced fluids
Hyperchloremia and Hyperchloremia and Gastrointestinal SystemGastrointestinal System
Anesth Analg 2001;93:811–6
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Postoperative pts.Postoperative pts.
Anesth Analg 2003, 96:611-617.
Hyperchloremia and Hyperchloremia and Gastrointestinal SystemGastrointestinal System
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Postoperative ptsPostoperative pts Liberal NS (>3 L) or restricted NS Liberal NS (>3 L) or restricted NS
(< 2 L)(< 2 L)
Lancet 2002; 359: 1812–18
Hyperchloremia and Hyperchloremia and Gastrointestinal SystemGastrointestinal System
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ConclusionConclusion
There is not sufficient evidence from the available literature to suggest that hyperchloraemic acidosis has a clinically relevant effect on gastrointestinal function. Some degree of intraoperative
Crystalloid restriction and colloid use may, however, be associated with an improvement in gastrointestinal function and outcome.
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Hyperchloremia and Hyperchloremia and CoagulationCoagulation
AAA repairAAA repair Randomized. NS or LR. Cl: 107 vs. 114, BE: - 2.2 vs – 3.8Randomized. NS or LR. Cl: 107 vs. 114, BE: - 2.2 vs – 3.8
0
200
400
600
800
1000
PRBC FFP Platelet
mL SF
RL*
Anesth Analg 2001;93:817–22)
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Saudi J Anaesth. 2013 Jan-Mar; 7(1): 48–56
Saudi J Anaesth. 2013 Jan-Mar; 7(1): 48–56
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ConclusionConclusion
There is little evidence that large volumes of isotonic saline have a significantly detrimental effect on coagulation, blood loss or transfusion.
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Hyperchloremia and Hyperchloremia and MortalityMortality
Acidosis may be associated with Acidosis may be associated with mortality butmortality but
Type of acidosis is importantType of acidosis is important Difficult to establish relation with Difficult to establish relation with
hyperchloremia only. hyperchloremia only.
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Rats. Experimental Sepsis model.Rats. Experimental Sepsis model. NS, LR or HESNS, LR or HES NS and RL leads higher chloride levels: 123 NS and RL leads higher chloride levels: 123
vs. 115vs. 115 BE is lower with NS.BE is lower with NS.
Crystalloid Colloid
Crit Care Med 2002; 30:300 –305
Hyperchloremia and Hyperchloremia and MortalityMortality
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851 critically ill patients with lactate measurement851 critically ill patients with lactate measurement Mortality with acidosis: % 45, without acidosis % 26Mortality with acidosis: % 45, without acidosis % 26
Critical Care 2006, 10:R22
Hyperchloremia and Hyperchloremia and MortalityMortality
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Base excess > 2, critically ill pts.Base excess > 2, critically ill pts.
SHOCK, Vol. 17, No. 6, pp. 459–462, 2002
Hyperchloremia and Hyperchloremia and MortalityMortality
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175 critically ill pts.175 critically ill pts.
Hyperchloremia and Hyperchloremia and MortalityMortality
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SOFA +chloride + albumin better for mortality prediction
Chloride and albumin levels are independent predictors of mortality.
Journal of Critical Care (2011) 26, 175–179
Hyperchloremia and Hyperchloremia and MortalityMortality
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ResultsResults Hypercholoremic metabolic acidosis is a
side effect Mostly observed after the administration
of large volumes of isotonic saline as a crystalloid.
The effect remains moderate and relatively transient (24 to 48 hours), and is minimized with the use of colloids,
From the available literature, the evidence for adverse effects of hyperchloraemic acidosis on organ function, morbidity or mortality remains unanswered.