Journal List > J Korean Soc Transplant > v.31(1) > 1034530

Lee, Jang, Han, Han, Oh, and Roh: Influencing Factors Affecting Successful Organ Donation and Families’ Consent to Donate after Drain Death

Abstract

Background:

This study was conducted to identify the factors influencing successful organ donation and families’ consent to donate after brain death.

Methods:

Medical records and data regarding organ donation counseling with the families of 107 brain-dead potential donors between September 2012 and March 2016 at a single tertiary medical center were retrospectively reviewed.

Results:

The final consent rate was 57.9% (62/107), and successful donation was performed in 40.2% (43/107) of cases. Univariate and multivariate analyses revealed that the independent factors associated with successful organ donation were age <60 years (odds ratio [OR], 3.384; 95% confidence interval [CI], 1.350 to 8.484; P=0.009), systolic blood pressure ≥90 mmHg (OR, 6.261; 95% CI, 1.418 to 27.653; P=0.015), and serum sodium level ≥150 mEq (OR, 4.215; 95% CI, 1.655 to 10.733; P=0.003). Family's consent to donate was significantly associated with head trauma (OR, 3.538; 95% CI, 1.104 to 11.334; P=0.033) and serum sodium level ≥150 mEq (OR, 3.392; 95% CI, 1.404 to 8.194; P=0.007).

Conclusions:

Successful organ donation was associated with patient age, systolic blood pressure and serum sodium level. Family's consent to donate was associated with head trauma and serum sodium level.

REFERENCES

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Table 1.
Clinical characteristics at the time of potential donor iden tification (n=107)
Variable Value
Age (yr)
  Mean±SD 49.5±15.7
  Range 3∼83
  ≥60 24 (22.4)
  <60 83 (77.6)
Sex (male/female) 37 (34.6)/70 (65.4
Cause of brain death
  Cerebrovascular accident
    Hemorrhage 44 (41.1)
    Infarct 5 (4.7)
  Trauma-related
    Head trauma 25 (23.4)
  Hypoxic brain injury
    Post-CPR 11 (10.3)
    Hanging 9 (8.4)
    Hypoxic, etc. 9 (8.4)
  Etc.
    Brain tumor 3 (2.8)
    Ventriculitis 1 (0.9)
SBP (mmHg)
  Mean±SD 113.6±23.7
  Range 54∼171
  >90 90 (84.1)
  ≤90 17 (15.9)
MAP SBP (mmHg)
  Mean±SD 83.8±17.6
  Range 44∼139
  >60 96 (89.7)
  ≤60 11 (10.3)
Inotropics (yes/no) 93 (86.9)/14 (12.1
Central venous pressure (mmHg)
  Mean±SD 4.2±2.0
  Range 1∼12
  4∼10 71 (66.4)
  <4 or >10 36 (33.6)
Ejection fraction (%)
  Mean±SD 58.3±11.4
  Range 18∼80
  ≥50 94 (87.9)
  <50 13 (12.1)
Arterial blood gas (pH)
  Mean±SD 7.37±0.1
  Range 6.90∼7.61
  7.30∼7.45 55 (51.4)
  <7.30 or >7.45 52 (48.6)
PaO2:FiO2
  Mean±SD 218.8±26.8
  Range 90∼400
  ≥300 53 (49.5)
  <300 54 (50.5)
Blood glucose (mg/dL)
  Mean±SD 193.9±88.9
  Range 67∼542
  ≤150 41 (38.3)
  >150 66 (61.7)
Serum Na+ (mEq)
  Mean±SD 150.3±9.8
  Range 128∼170
  ≥150 57 (53.3)
  <150 50 (46.7)
Craniotomy (yes/no) 38 (36)/69 (65)
Coma therapy (yes/no) 40 (37.4)/67 (62.6)
Family relationship
  Parent 21 (19.6)
  Descendant 21 (19.6)
  Spouse 60 (56.1)
  Sibling 5 (4.7)
Time interval between counselling and final family decision (hr)
  Mean±SD 16.5±43.1
  Range 0∼283
  <48 92 (86.0)
  ≥48 15 (14.0)
Final decision about organ donation (consent/refuse) 62 (57.9)/45 (42.1)

Data are presented as number (%) unless otherwise indicated. Abbreviations: CPR, cardiopulmonary resuscitation; SBP, systolic blood pressure; MAP, mean arterial pressure; PaO2, partial pressure of oxygen; FiO2, fraction of inspired oxygen.

Table 2.
Factors affecting successful organ donation (univariate analysis)
Variable Unsuccessful donation (n=64) Successful donation (n=43) P-value
Age <60 years 45 (70.3) 38 (88.4) 0.028a
Female sex 40 (62.5) 30 (69.8) 0.438a
Head trauma 10 (15.6) 15 (34.9) 0.021a
Inotropics 56 (87.5) 37 (86.0) 0.827a
SBP >90 mmHg 50 (78.1) 40 (93.0) 0.033b
MAP >60 mmHg 55 (85.9) 41 (95.3) 0.193b
Craniectomy 23 (35.9) 15 (34.9) 0.911a
Central venous pressure 4∼10 mmHg 43 (67.2) 28 (65.1) 0.824a
Ejection fraction ≥50% 54 (84.4) 40 (93.0) 0.235b
Arterial blood gas pH 7.30∼7.45 39 (60.9) 26 (60.5) 0.961a
PaO2:FiO2 >300 29 (45.3) 24 (55.8) 0.237a
Blood glucose <150 mg/dL 25 (39.1) 16 (37.2) 0.847a
Serum Na+ ≥150 mEq 27 (42.2) 30 (69.8) 0.005a
Coma therapy 19 (29.7) 21 (48.8) 0.045a
Parent as prior determiner 9 (14.1) 12 (27.9) 0.077a
Time interval until decision 48 hours 8 (12.5) 7 (16.3) 0.581a

Data are presented as number (%).

Abbreviations: SBP, systolic blood pressure; MAP, mean arterial pressure; PaO2, partial pressure of oxygen; FiO2, fraction of inspired oxygen.

a Chi-square test;

b Fisher exact test.

Table 3.
Factors affecting successful organ donation (multivariate analysisa)
Variable P-value Odd ratio (95% CI)
Age <60 years 0.009 3.384 (1.350∼8.484)
Head trauma 0.066 2.736 (0.934∼8.012)
SBP >90 mmHg 0.015 6.261 (1.418∼27.653)
Serum Na+ ≥150 mEq 0.003 4.215 (1.655∼10.733)
Coma therapy 0.172 1.917 (0.754∼4.871)

Abbreviations: CI, confidence interval; SBP, systolic blood pressure.

a Binary logistic regression model.

Table 4.
Factors affecting family's consent for organ donation
Variable Univariate analysis   Multivariate analysisa
P-value P-value Odd ratio (95% CI)
Female sex 0.025b 0.258 1.725 (0.670∼4.439)
Head trauma 0.011b 0.033 3.538 (1.104∼11.334)
Serum Na+ ≥150 mEq 0.002b 0.007 3.392 (1.404∼8.194)
Coma therapy 0.018b 0.150 1.983 (0.780∼5.040)
Ejection fraction ≥50% 0.041c 0.468 0.584 (0.137∼2.499)

Abbreviation: CI, confidence interval.

a Binary logistic regression model;

b Chi-square test;

c Fisher exact test.

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