Acute and Critical Care

Original Articles

Cardiology
Diagnostic accuracy of left ventricular outflow tract velocity time integral versus inferior vena cava collapsibility index in predicting post-induction hypotension during general anesthesia: an observational study: Vibhuti Sharma, Arti Sharma, Arvind Sethi, Jyoti Pathania; Acute Crit Care. 2024;39(1):117-126. Published online February 23, 2024; DOI: https://doi.org/10.4266/acc.2023.00913

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Background
Point of care ultrasound (POCUS) is being explored for dynamic measurements like inferior vena cava collapsibility index (IVC-CI) and left ventricular outflow tract velocity time integral (LVOT-VTI) to guide anesthesiologists in predicting fluid responsiveness in the preoperative period and in treating post-induction hypotension (PIH) with varying accuracy. Methods: In this prospective, observational study on included 100 adult patients undergoing elective surgery under general anesthesia, the LVOT-VTI and IVC-CI measurements were performed in the preoperative room 15 minutes prior to surgery, and PIH was measured for 20 minutes in the post-induction period. Results: The incidence of PIH was 24%. The area under the curve, sensitivity, specificity, positive predictive value, negative predictive value, and diagnostic accuracy of the two techniques at 95% confidence interval was 0.613, 30.4%, 93.3%, 58.3%, 81.4%, 73.6% for IVC-CI and 0.853, 83.3%, 80.3%, 57.1%, 93.8%, 77.4% for LVOT-VTI, respectively. In multivariate analysis, the cutoff value for IVC-CI was >51.5 and for LVOT-VTI it was ≤17.45 for predicting PIH with odd ratio [OR] of 8.491 (P=0.025) for IVCCI and OR of 17.427 (P<0.001) for LVOT. LVOT-VTI assessment was possible in all the patients, while 10% of patients were having poor window for IVC measurements. Conclusions: We recommend the use of POCUS using LVOT-VTI or IVC-CI to predict PIH, to decrease the morbidity of patients undergoing surgery. Out of these, we recommend LVOT-VTI measurements as it has showed a better diagnostic accuracy (77.4%) with no failure rate.

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Where the Postanesthesia Care Unit and Intensive Care Unit Meet
Mary Rose Gaylor, David N. Hager, Kathleen Tyson
Critical Care Clinics.2024; 40(3): 523. CrossRef

Pediatrics
Early postoperative arrhythmias after pediatric congenital heart disease surgery: a 5-year audit from a lower- to middle-income country: Sidra Ishaque, Saleem Akhtar, Asma Akbar Ladak, Russell Seth Martins, Muhammad Kamran Younis Memon, Alisha Raza Kazmi, Fatima Mahmood, Anwar ul Haque; Acute Crit Care. 2022;37(2):217-223. Published online February 3, 2022; DOI: https://doi.org/10.4266/acc.2020.00990

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Abstract PDF

Background
Arrhythmias are known complication after surgery for congenital heart disease (CHD). This study aimed to identify and discuss their immediate prevalence, diagnosis and management at a tertiary care hospital in Pakistan. Methods: A retrospective study was conducted at a tertiary care hospital in Pakistan between January 2014 and December 2018. All pediatric (<18 years old) patients admitted to the intensive care unit and undergoing continuous electrocardiographic monitoring after surgery for CHD were included in this study. Data pertaining to the incidence, diagnosis, and management of postoperative arrhythmias were collected. Results: Amongst 812 children who underwent surgery for CHD, 185 (22.8%) developed arrhythmias. Junctional ectopic tachycardia (JET) was the most common arrhythmia, observed in 120 patients (64.9%), followed by complete heart block (CHB) in 33 patients (17.8%). The highest incidence of early postoperative arrhythmia was seen in patients with atrioventricular septal defects (64.3%) and transposition of the great arteries (36.4%). Patients were managed according to the Pediatric Advanced Life Support guidelines. JET resolved successfully within 24 hours in 92% of patients, while 16 (48%) patients with CHB required a permanent pacemaker. Conclusions: More than one in five pediatric patients suffered from early postoperative arrhythmias in our setting. Further research exploring predictive factors and the development of better management protocols of patients with CHB are essential for reducing the morbidity and mortality associated with postoperative arrhythmia.

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Prevalence and risk factors analysis of early postoperative arrhythmia after congenital heart surgery in pediatric patients
Ketut Putu Yasa, Arinda Agung Katritama, I. Komang Adhi Parama Harta, I. Wayan Sudarma
Journal of Arrhythmia.2024; 40(2): 356. CrossRef
Improvements in Accuracy and Confidence in Rhythm Identification After Cardiac Surgery Using the AtriAmp Signals
Diane H. Brown, Xiao Zhang, Awni M. Al-Subu, Nicholas H. Von Bergen
Journal of Intensive Care Medicine.2023; 38(9): 809. CrossRef

Case Report

Surgery
Critical Illness Neuromyopathy Complicating Cardiac Surgery: Wan Ki Baek, Young Sam Kim, Joung Taek Kim, Byoung-Nam Yoon; Acute Crit Care. 2018;33(1):51-56. Published online July 11, 2017; DOI: https://doi.org/10.4266/acc.2016.00255

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Abstract PDF

Critical illness neuromyopathy (CINM) is a sporadically reported disease in the setting of an intensive care unit developing in the process of managing a critical illness. The disease primarily affects the motor and sensory axons and results in severe limb weakness rendering ventilator weaning extremely difficult. We report a case of CINM after cardiac valve surgery. Quadriplegia developed after the operation and resolved slowly over the following 2 months. The patient was discharged home free of neurologic symptoms.

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Quadriplegia after Mitral Valve Replacement in an Infective Endocarditis Patient with Cervical Spine Spondylitis
Ji Min Lee, Seon Yeong Heo, Dong Kyu Kim, Jong Pil Jung, Chang Ryul Park, Yong Jik Lee, Gwan Sic Kim
Journal of Chest Surgery.2021; 54(3): 218. CrossRef
Perforated Toxic Megacolon: The Dreaded Complication in IBD
Kanmani Murugesu, PremanandanN Sivadasan, Michael Arvind, WilsonLiew Wei Xin
World Journal of Colorectal Surgery.2020; 9(4): 70. CrossRef

Original Articles

Thoracic Surgery
Blood Conservation Strategy during Cardiac Valve Surgery in Jehovah’s Witnesses: a Comparative Study with Non-Jehovah’s Witnesses: Tae Sik Kim, Jong Hyun Lee, Chan-Young Na; Korean J Crit Care Med. 2016;31(2):101-110. Published online May 31, 2016; DOI: https://doi.org/10.4266/kjccm.2016.31.2.101

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Abstract PDF

Background:
We compared the clinical outcomes of cardiac valve surgery in adult Jehovah’s Witness patients refusing blood transfusion to those in non-Jehovah’s Witness patients without any transfusion limitations.
Methods
From 2005 to 2014, 25 Jehovah’s Witnesses (JW group) underwent cardiac valve surgery using a blood conservation strategy. Twenty-five matched control patients (non-JW group) were selected according to sex, age, operation date, and surgeon. Both groups were managed according to general guidelines of anticoagulation for valve surgery.
Results
The operative mortality rate was 4.0% in the JW group and 0% in the non-JW group (p = 1.000). There was no difference in postoperative major complications between the groups (p = 1.000). The overall survival rate at 5 and 10 years was 85.6% ± 7.9% and 85.6% ± 7.9% in the JW group, respectively, and 100.0% ± 0.0% and 66.7% ± 27.2% in the non-JW group (p = 0.313). The valve-related morbidity-free survival rates (p = 0.625) and late morbidity-free survival rates (p = 0.885) were not significantly different between the groups.
Conclusions
Using a perioperative strategy for blood conservation, cardiac valve surgery without transfusion had comparable clinical outcomes in adult patients. This blood conservation strategy could be broadly applied to major surgeries with careful perioperative care.

Citations

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Optimising bloodless cardiovascular surgery for Jehovah’s Witnesses and beyond
Matti Jubouri, Fatemeh Hedayat, Sakina Abrar, Sophie L. Mellor, Louise J. Brown, Amer Harky
Coronary Artery Disease.2022; 33(1): 52. CrossRef
Outcomes of perioperative management in Jehovah's Witness patients undergoing surgeries with a risk of bleeding: a retrospective, single-center, observational study
Keum Young So, Sang Hun Kim
Medical Biological Science and Engineering.2022; 5(1): 6. CrossRef

Surgery
Clinical Outcome and Prognosis of Patients Admitted to the Surgical ICU after Abdomen Surgery: Yun Su Sim, Jin Hwa Lee, Jung Hyun Chang, Yon Ju Ryu; Korean J Crit Care Med. 2015;30(1):1-7. Published online February 28, 2015; DOI: https://doi.org/10.4266/kjccm.2015.30.1.1

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Abstract PDF

Background
Postoperative admission to the surgical intensive care unit (S-ICU) is commonly planned to prevent and treat complications, unnecessary admission to the S-ICU increases medical costs and length of hospital stay. This study aimed evaluated outcome and the predictive factors for mortality in patients admitted to the S-ICU after abdominal surgery. Methods: The 168 patients admitted to the S-ICU immediately after abdominal surgery were reviewed retrospectively from January to December 2011. Results: The mortality rate of patients admitted to the S-ICU after abdominal surgery was 8.9% (15 of 168). Two preoperative factors (body mass index [BMI] < 18.5 kg/m2 [p < 0.001] and serum albumin < 3.0 g/dL [p = 0.018]), two operative factors (the need for transfusion [p = 0.008] or vasopressors [p = 0.013] during surgery), and three postoperative variables (mechanical ventilation immediately following surgery [p < 0.001], sequential organ failure assessment [p = 0.001] and SAPS II [p = 0.001] score) were associated with mortality in univariate analysis. After adjusting for age, gender, and SAPS II by a Cox regression, which revealed that BMI < 18.5 kg/m2 (p < 0.001, hazard ratio [HR] 9.690, 95% confidence interval [CI] 2.990-25.258) and the use of mechanical ventilation on admission to S-ICU (p < 0.001, HR 34.671, 95% CI 6.440-186.649) were independent prognostic factors. Conclusions: In patients in S-ICU after abdominal surgery, low BMI and postsurgical mechanical ventilation should be considered important predictors of mortality.

Citations

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The Effect of Organ System Surgery on Intensive Care Unit Mortality in a Cohort of Critically Ill Surgical Patients
Anastasiya Shchatsko, Laura N. Purcell, Christopher J. Tignanelli, Anthony Charles
The American Surgeon.2021; 87(8): 1230. CrossRef

The Risk Factors of Postoperative Respiratory Insufficiency after Prolonged Robotic Radical Prostatectomy: Jin Young Lee, Ji Young Lee, Sung Jin Hong, Byung Ho Lee, Ou Kyoung Kwon, Young Hee Kim; Korean J Crit Care Med. 2010;25(3):130-135.; DOI: https://doi.org/10.4266/kjccm.2010.25.3.130

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Abstract PDF

BACKGROUND
Robotic radical prostatectomy is performed in elderly patients and requires extreme changes in the patient's position and is often associated with a long surgery time. This study reviewed the pulmonary complications occurring after a robotic radical prostatectomy and analyzed the potential risk factors.
METHODS
The medical records of all patients who had undergone robotic radical prostatectomy at our institution were reviewed. Among the 80 total patients, 58 were capable of spontaneous respiration at the end of surgery (Group I), whereas 22 patients required assisted ventilation (Group II). A comparison between the two groups was made in terms of the demographic characteristics, coexisting diseases, anesthesia and operation time, amount of intraoperative blood loss and transfused blood products.
RESULTS
The mean age of the patients was 67.2 +/- 7.3 years. The mean operation time was 384.1 +/- 203.4 min (range, 195-1,180 min). The anesthesia and operation time, amount of intraoperative blood loss and number of transfused patients were all significantly higher in Group II. Univariate analysis revealed age, body mass index, intraoperative blood loss and transfusion, anesthesia and operation time to be related to postoperative respiratory insufficiency. Multivariate analysis revealed intraoperative transfusion and operation time to be predictive risk factors.
CONCLUSIONS
Prolonged laparoscopic surgery in a steep Trendelenburg position has a high likelihood of postoperative respiratory insufficiency, with the intraoperative transfusion and a longer operation time being possible contributing factors.

Citations

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Features of the mechanics of respiration and gas exchange during robot-assisted radical prostatectomy. Review
Ildar I. Lutfarakhmanov, I. A. Melnikova, E. Yu. Syrchin, V. F. Asadullin, Yu. A. Korelov, P. I. Mironov
Annals of Critical Care.2021; (1): 75. CrossRef

Case Report

Bronchospasm during Minimally Invasive Cardiac Surgery in a Patient with a Mosaic Attenuation Pattern on Lung Computed Tomography: A Case Report: Eun Soo Kim, Hyeon Jeong Lee, Sung Chun Park, Hee Young Kim, Hyung Gon Je, Jung Min Hong; Korean J Crit Care Med. 2010;25(1):48-51.; DOI: https://doi.org/10.4266/kjccm.2010.25.1.48

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Abstract PDF

Severe bronchospasm during cardiac surgery is an uncommon, but serious problem. A 52-year-old woman with a mosaic attenuation pattern on the whole lung field was scheduled for repair of an atrial septal defect under minimally invasive cardiac surgery. Bronchospasm developed intraoperatively, but the underlying ventilatory impairment, poor performance of one-lung ventilation and initiation of cardiopulmonary bypass delayed diagnosing and treating the bronchospasm. The bronchospasm induced severe pulmonary edema that required postoperative ventilatory care.

Citations

Citations to this article as recorded by

Pulmonary Edema in Severe Bronchospasm
Charles Her
The Korean Journal of Critical Care Medicine.2010; 25(3): 203. CrossRef

Original Articles

Nonlinear Analysis of Heart Rate Variability: Possible Predictor for Atrial Fibrillation after Coronary Artery Bypass Graft (CABG) Surgery: Kyung Sil Im, Jong Bun Kim, Jae Myeong Lee, Kuhn Park, Hyun Ju Jung, Jeong Yun Rhee; Korean J Crit Care Med. 2007;22(1):25-29.

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Abstract PDF: BACKGROUND
Heart Rate Variability (HRV) is a valuable marker of autonomic tone and may assist evaluating the prognosis in patients with heart disease. The purpose of this study was to assess whether preoperative heart rate variability analysis predicts atrial fibrillation in patients undergoing coronary artery bypass graft (CABG) surgery. METHODS: This study was designed as a prospective observational study. After IRB approval was obtained by our institution, 76 patients scheduled for elective CABG surgery underwent a 10-min electrocardiogram recordings 1~2 hours prior to surgery. Heart rate variability analysis was performed with spectral analysis and point correlation dimension. RESULTS: There was no significant difference in the low and high frequency component (LF/HF) ratio preoperatively between patients with atrial fibrillation and patients with normal sinus rhythm postoperatively (3.0+/-2.45, 4.25+/-3.70, p=0.085). Baseline peak point correlation dimension (pPD2) was significantly higher in patients with atrial fibrillation than in patients with normal sinus rhythm postoperatively (4.2+/-0.8, 3.8+/-0.7, p=0.042). CONCLUSIONS: Patients who developed atrial fibrillation postoperatively had a higher baseline pPD2 value preoperatively. Point correlation dimensions may predict the occurrence of postoperative atrial fibrillation after CABG surgery. However, further studies are needed to confirm whether point correlation dimensions are an effective predictor for postoperative atrial fibrillation.

Statistical Analysis of Mortality Associated with Anesthesia and Surgery in a Hospital from 2000 to 2004: Jiyeon Sim, Donguk Kim, Jeong Rim Lee, Wonsik Ahn; Korean J Crit Care Med. 2007;22(1):15-24.

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Abstract PDF: BACKGROUND
Surgical patients should be provided adequate information on operation. The information on mortality is extremely important among them. The purposes of this study are to investigate the recent mortality associated with anesthesia and surgery, and to get a logistic regression model of mortality based on patient information. METHODS: We collected all of the anesthetic cases except local anesthesia during 5 years (between 2000 and 2004) in a hospital. All deaths within 7 days after anesthesia were retrieved. These data were analyzed in terms of age, gender, department in charge, time point after anesthesia, elective or emergency surgery, type of anesthesia, operation name, and diagnosis. The combined effects of the variables on the mortality were evaluated with logistic regression. The causes of death were also analyzed. RESULTS: There were 155 deaths among 74,458 patients under anesthesia. Age less than 1 year old or greater than 80 years old, male gender, department of thoracic surgery, emergency operation, cardiovascular surgery, and diseases for transplantation had higher mortality than their counterparts. Regression model was followed with assignment of '1' for the above mentioned categories. Other categories were designated by '0'. Log[p (death)/{1-p (death)}] = -9.15+1.03xage+0.66xsex+0.79xdepartment+2.77xemergency+2.52 xdiagnosis+0.89xoperation The leading cause of death was sepsis (21.9%). CONCLUSIONS: The average of mortality within 7 days after anesthesia was 21 per 10,000 anesthetic cases (0.21%). Estimated mortality based on logistic regression ranged from 0.01% to 10.25% depending on patient information.

The Effect of Increased Intra-abdominal Pressure and Positions on Respiratory Mechanics during Laparoscopic Surgery: Jong Cook Park, Hyun Jun Kwak; Korean J Crit Care Med. 2006;21(1):51-56.

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Abstract PDF: BACKGROUND
Peritoneal CO2 insufflation results in elevation of PaCO2 and decreased respiratory compliance. Respiratory mechanics can be measured with flow interrupter technique. This study was designed to evaluate the effect of increased intra-abdominal pressure and positions on respiratory mechanics during laparoscopic surgery.
METHODS
Female patients undergoing cholecystectomy (10 degrees head-up group, n=9) and gynecologic operation (10 degrees head-down group, n=9) under laparoscopy were studied. The upper limit of intra-abdonimal pressure was set to 12 mmHg. We measured airway flow and airway pressure of patients at preoperation, during insufflation, during positioning, and postoperation. Respiratory data were obtained from D-lite(R)sensor on-line.
RESULTS
After increased intra-abdominal pressure and positioning, dynamic compliances in both groups were significantly decreased by 31~35%, static compliances by 39~43%. There was no difference of compliance between positions. The elastic tissue resistance of head-up group was significantly elevated compared with after operation. After operation, the respiratory parameters returned nearly to control levels.
CONCLUSIONS
This result suggests that the respiratory mechanics should be monitored under laparoscopy continuously. Further studies on clinical condition such as ascites, hemorrhage, and pregnancy were needed.

Case Report

Use of Laryngeal Mask Airway Proseal for Stereotactic Biopsy of Brain Tumor in which Difficult Intubation was Expected under General Anesthesia: A Case Report: Yun Hong Kim, Hyun Soo Kim, Sung Ha Mun, Hyun Seung Lee; Korean J Crit Care Med. 2004;19(1):47-51.

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Abstract PDF: Stereotactic surgery is a technique allowing the operation of an intracranial lesion without the need for craniotomy. Now stereotactic technique is widely used for aspiration of brain abscess or hemorrhage, biopsy of brain tumor and treatment of movement disorder etc. Because of the frame of stereotactic system, that is fixed on the scalp, laryngoscopic endotracheal intubation may be disturbed. So, in this case, we used laryngeal mask airway Proseal (PLMA(TM)) for maintenance of airway during stereotactic biopsy of brain tumor under general anesthesia. It was easily to insert PLMA(TM) using the introducer at once. The ventilation during the operation was not impeded at all time. There were not excessively changes of vital sign during general anesthesia. We think that PLMA(TM) may be a good alternative method for maintenance of airway during stereotactic surgery under general anesthesia.

Original Article

Hemodynamic Effect of Pulmonary Artery Ligation during Pneumonectomy: Kwang Ho Lee, Hyun Kyo Lim, Eun Sung Jun, Young Bok Lee, Kyung Bong Yoon, Jae Chan Choi, Soon Yul Kim, Ryung Choi; Korean J Crit Care Med. 2000;15(2):88-92.

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Abstract PDF: BACKGROUND
Pulmonary artery ligation during pneumonectomy increase the pulmonary blood flow of dependent lung and may increase the pulmonary arterial pressure and pulmonary vascular resistance. The purpose of this study is to evaluate the hemodynamic effect of pulmonary artery ligation during pneumonectomy.
METHODS
Nine patients who were supposed to receive pneumonectomy were studied. Hemodynamic measurements were performed following two lung ventilation (TLV), one lung ventilation (OLV), after pulmonary artery ligation and after pneumonectomy.
RESULTS
There is no significant differences in heart rate, systemic arterial pressure, pulmonary arterial pressure, pulmonary capillary wedge pressure, cardiac index and pulmonary vascular resistance index. Arterial oxygen tension significantly reduced during OLV and increased after pulmonary artery ligation and after pneumonectomy.
CONCLUSIONS
These results suggest that pulmonary artery ligation during pneumonectomy may not affect the cardiopulmonary hemodynamics.

Case Reports

An Experience of Right Pneumonectomy in a Lung Cancer Patient with Poor Pulmonary Function Test within the Conventional Criteria of Contraindication to Surgery: Intraoperative Re-evaluation of Pulmonary Function: A case report: Jin Young Chon, Sung Jin Hong, Ung Jin, Hae Jin Lee, Yong Woo Choi, Se Ho Moon, Sun Hee Lee, Man Seok Bae; Korean J Crit Care Med. 1999;14(2):167-175.

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Abstract PDF: Usually FEV1 lower than 1 liter is considered as a contraindication to pneumonectomy. Therefore sometimes, the curative operations of the resectable lung cancer can not be performed in case of poor pulmonary functions. The usual criteria on the performance of pneumonectomy on high risk patients based on the preoperative assessment of pulmonary function may not predict the operative outcome with accuracy in the postoperative period. Nowadays, there are some arguing points about applying the values of preoperative PFTs to pulmonary resection surgery. We performed a right pneumonectomy for stage IIIb lung cancer in a patient with poor lung function test; FVC 2.17 L, FEV1 0.97 L, FEV1/FVC 44%, FEF 25~75% 0.42 L/sec, MVV 28 L/min, TLC 5.18 L, RV 2.99, DLCO 13.46. After the temporary ligation of right main pulmonary artery during 30 minutes, arterial blood gas and percutaneous oxygen saturation with the controlled ventilation with room air (FiO2=0.21) confirmed the hemodynamic and oxygenation stabilities, twice. After successful surgery, the patient was tolerated for 4 months. And the follow up PFTs at postoperative 3 months and 18 days showed as follows; FVC 1.20 L, FEV1 0.63 L, FEV1/FVC 53%, FEF 25~75% 0.31 L/sec, MVV 25 L/min, TLC 3.80 L, RV 2.33 L, DLCO 8.04. Through the intraoperative re-evaluation of pulmonary function in a patient with poor preoperative PFTs,had been conventionally considered as a contraindication to pneumonectomy, we report a successful surgery and anesthetic management with the literatures reviewed.

Postoperative Unstable Angina Pectoris Occured in the Recovery Room: Case report: Myoung Oak Kim; Korean J Crit Care Med. 1999;14(1):52-57.

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Abstract PDF: The leading cause of death after anesthesia and operations is cardiac complications, defined as myocardial infarction, unstable angina, congestive heart failure. We experienced a case of transient chest pain mimicking to myocardial ischemia after total intravenous anesthesia using propofol. The patient was 56 year-old female who underwent metatarsal osteotomy and distal soft tissue procedure. There was no specific abnormality on preoperative laboratory tests. Anesthesia induction and intraoperative course were completely uneventful. Immediately after transfered to the recovery room, the patient revealed transient cyanosis and complained anterior chest pain with tightness after fully awakening. In the study of electrocardiogram, there were ST abnormality in II, III, AVF and then T inversion in II, III, AVL, AVF, V2-6 leads. In the simultaneous study of echocardiogram, there was hypokinetic wall movement in the distal septum area. After treatment of nitroglycerine, the pain was subsided and the patient was discharged without any sequelae.

Original Article

Quality Assessment of Blood Transfusion in Operating Room: Myoung Gil Chae, Byeung Ho Byeun, Dong Hee Kang, Hae Kyu Kim, Seong Wan Baik, Kyoo Sub Chung; Korean J Crit Care Med. 1998;13(2):234-238.

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Abstract PDF: BACKGOUND: Transfusion of red blood cells is a life saving measure in the management of a variety of surgical conditions. A guideline for blood transfusion during elective surgical procedure is necessary to reduce the risks of transfusion-associated complications, excessive blood bank workload, excessive blood request and overtransfusion, and the cost. From this, a program of quality assessment was adopted to improve blood transfusion practice and to establish the guideline for blood transfusion in elective surgery at Pusan National University Hospital.
METHODS
Fifty-six patients undergoing elective surgery was divided 2 groups. Transfusion (T) group was 18 persons. Non-transfusion (NT) group was 38 persons. The preoperative, pre-transfusion, postoperative, and post-transfusion hemoglobin (Hb), hematocrit, mean arterial blood pressure (MAP), heart rate (HR), average amount of transfused red blood cell units, allowable blood loss, and the amount of infused crystalloids and colloids was estimated for 9 months in Pusan National University Hospital.
RESULTS
There were no significant differences in Hb between T & NT group. Hb decreased significantly until postoperative 3rd day in NT group. Platelet count decreased in NT group on postop. 3rd day. There were no significant differences in MAP & HR. One-ninth of T group was overestimated blood loss & 18.4% of NT group was underestimated blood loss. One-third of transfusion patient were overtransfused & 36.2% of transfused RBC was unnecessary. Nearly 90% of patient was transfused packed RBC with FFP concurrently.
CONCLUSIONS
To minimize overtransfusion, transfusion based on intraoperative hematocrit is necessary. If possible, single use of packed RBC is recommended when the blood loss is below allowable blood loss. In massive bleeding above allowable blood loss, combined administration of FFP and packed RBC or transfusion of whole blood will be better.

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