• Childhood Kidney Diseases
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• 제18권1호
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• pp.13-17
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• 2014

지속적 신 대체 요법(CRRT)은 급성 신손상이 있는 중증 소아의 치료로 점차 사용이 늘어나고 있으며 CRRT의 기술과 실제 사용법이 발달하면서 작은 영아나 신생아에서도 그 사용이 조금씩 늘어나고 있다. 고암모니아혈증이나 체외막산소화 장치(ECMO) 치료 중에 발생한 급성 신손상 등의 경우 CRRT가 안전하고 효과적인 치료가 될 수 있으나, 혈관 접근이나 출혈 그리고 신생아 전용 CRRT device의 부재로 인한 여러 가지 제한점이 있다. 이 종설에서는 기본적인 CRRT의 원리를 알아보고 신생아와 영아에서 특별히 고려해야 할 사항들에 대해 알아보고자 한다.

• 한국의료질향상학회지
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• 제25권1호
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• pp.43-51
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• 2019

Purpose: The time lag between the decision to initiate continuous renal replacement therapy (CRRT) and its actual initiation remains a major barrier in our intensive care units. We developed a CRRT pop-up chart on EMR for managing CRRT machines. Methods: This study measured time interval between the decision to prepare the CRRT machine and the actual use of the machine before and after using a CRRT pop-up chart. This study conducted a questionnaire of the medical staff to assess the changes in the quality of CRRT preparation. Results: A total of 95 patients on CRRT is analyzed. The time to find an available CRRT machine is decreased by 24.6%. The time to move a CRRT machine to the patient's bedside is decreased by 55.8%. Medical surveys of 44 nurses gave the following results. 1) The time to apprehend machines for 1 to 3 minutes is improved from 29.5% to 81.8%, and the time to apprehend machines over 3 minutes is decreased from 70.5% to 18.2%. 2) The number (6-all) of known machine locations is improved from 22.7% to 63.4%. 3) Interruption of a nurse's work due to telephone calls asking for the possession of movable CRRT equipment also is improved. Scores of 1-4 are improved from 15.9% to 41%. Scores of 5-7 are reduced from 52% to 15.9%. Conclusions: CRRT pop-up chart is shortened the time lag of CRRT machine preparation, reduced the nurse's phone workload and helped to improve the quality of CRRT care.

• 중환자간호학회지
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• 제9권1호
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• pp.40-50
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• 2016

Purpose: Continuous renal replacement therapy (CRRT) has become the preferred dialysis method to support critically ill children and neonates with acute kidney injury. Using CRRT on neonates has increased, but reports about experience are limited. The aim of this study is to describe the clinical application, outcomes, and complications of CRRT in children and neonates. Methods: A retrospective review was performed in 135 children and 36 neonates who underwent CRRT at a tertiary hospital from 2008 to 2015. Results: At the initiation of CRRT, the median age of children was 72 months and the corrected age of neonates was 37.1 weeks. Median body weight of neonates was 3.2 kg. In neonates, initial degree of fluid overload [FO%], blood flow rate [BFR] and ultrafiltration rate [UFR] rate during CRRT were higher than in children. Median real time of CRRT was 90.5 and 53.5 hours in children and neonates, respectively. Downtime of CRRT was 0.7 and 1.3 hours/day. Median mortality rates (44.4% vs.47.2%) and complication rates were similar between the groups. Conclusion: CRRT can be used for a wide range of critically ill children and neonates. Different application methods of CRRT can contribute to increased survival of neonates.

• 중환자간호학회지
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• 제2권1호
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• pp.58-68
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• 2009

Purpose: The treatment effects and operation status of continuous renal replacement therapy (CRRT) for acute renal failure patients have been investigated. Method: Two expert nurses reviewed the records of 731 patients undergoing CRRT in an intensive care unit of a general hospital from Jan. 2002 to Dec. 2006 with the CRRT assessment sheet and situation sheet developed for this study. Results: The number of patients received CRRT increased from 90 in 2002 to 194 in 2006. The most common indication for CRRT was azotemia (40.0%). Before CRRT treatment, patients were 78.6 ($\pm55.5$) of BUN value and 5.0 ($\pm3.2$) of Cr. value. The standard values of BUN and Cr. were lowered. Compared the survival group with the death group, there were significant differences among the medical departments and the main diagnosis group. Their BUN and creatinine value, APACHE II score, mean blood pressure, and oliguria were significantly different (p<0.05). Conclusion: This survey demonstrates a trend that patients receiving CRRT has been increased. We suggest further studies are needed in some hospitals in order to generalize the results and to find how CRRT treatment affects patient’s survival and death rate.

• Childhood Kidney Diseases
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• 제9권1호
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• pp.76-82
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• 2005

목 적 : 최근 임상 적용이 늘어나는 citrate 항응고요법은 전신적 출혈성 경향을 증가시키지 않으나 여러 가지 대사 이상을 유발할 가능성이 있다. 저자들은 소아에서 칼슘포함투석액을 이용한 citrate 항응고요법의 효과 및 문제점을 알아보고자 하였다. 방 법 : 2002년 3월부터 2004년 10월까지 서울아산병원에서 CRRT를 시행받은 28명의 소아를 대상으로 후향적으로 의무기록을 검토하였다. 항응고요법의 종류에 따른 필터 수명을 비교하고 citrate 항응고요법을 시행한 환아들에서 CRRT 시작 시점과 시행 48시간 후의 전해질 검사 결과를 분석하였다. 결 과 : 28명의 환아들 중 모두 5명에서 citrate를 사용하였으며 이중 4명에서 출혈성 경향이 동반되어 있었다. Citrate를 사용하였을 때 필터 평균 수명은 1.60$\pm$0.72일로 CRRT 시행 중 출혈성 합병증은 없었다. 치료 전후의 Pf, aPTT, sodium, t$CO_{2}$, iCa은 차이가 없었으나 치료 48시간 후 총 Ca은 증가하였다. 필터 후 iCa 목표를 통상적으로 적용되는 0.25-0.39 mmol/L로 하였을 때 5례에서 모두 citrate 주입량이 증가하였으며 Ca 주입량은 감소하였다. 결 론 : 칼슘포함투석액을 이용한 citrate 항응고요법은 소아에서 출혈성 합병증이나 대사 이상을 유발하지 않고 안전하게 적용할 수 있는 방법으로 출혈성 경향이 동반된 환아의 CRRT에서 유용하게 쓰일 수 있다. 다만 현재 통상적으로 적용되는 값보다 필터 후 칼슘의 목표를 상향 조정하는 것이 추천된다.

• Clinical and Experimental Pediatrics
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• 제48권1호
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• pp.68-74
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• 2005

목 적 : 혈역동 상태가 불안정한 신부전 환자에서 CRRT 시행이 증가하고 있으나 국내에서는 소아 환자에서의 보고는 드물다. 그러므로 저자들은 소아 환자들에서 CRRT의 치료 경험을 보고하고자 한다. 방 법 : 2001년 5월부터 2004년 5월까지 서울아산병원에서 CRRT를 시행한 소아 환아 23례를 대상으로 하여 원인 질환 및 신대체요법 시작 시 임상 양상과 경과, CRRT의 방법과 결과를 검토하였고 생존군과 사망군 사이의 차이를 비교 분석하였다. 결 과 : 23명의 환아 중 남아가 12명, 여아가 11명이었고 연령은 3일에서 16세(중간값 5세)였다. 체중은 2.4 kg에서 63.9 kg(중간값 23.0 kg)였고 20 kg 이하가 5명이었다. 대상 환아의 기저 질환은 종양성 질환이 9명, 다장기 부전 증후군 5명, 선천성 대사이상 질환에 의한 고암모니아 혈증 4명, 간기능 부전과 동반된 급성 신부전 3명, 확장성 심근증 1명, 선천성 신증후군 1명 이었다. PRISM III 점수는 $17.6{\pm}7.6$이었고 평균 부전 장기의 수는 $3.0{\pm}1.7$개였다. CRRT를 시행한 기간은 1일에서 27일(평균 9일)이었다. 23명의 환아 중 11명(47.8%)이 생존하였다. 이중 4명에서 후유증이 남았는데 1명은 뇌출혈이 발견되었고 2명은 만성 신부전으로 진행하였으며 또 다른 1명에서는 내경정맥에 2중 도관 삽입과 관련된 상대정맥 혈전으로 인해 유미흉이 발생하였다. 생존군과 사망군을 비교하였을 때 생존군에서 CRRT 시작 당시의 PRISM III 점수와 투여되는 승압제의 수가 유의하게 낮았다(P<0.05). 결 론 : 혈역동상태가 불안정하고 다장기 부전이 동반된 급성 신부전 환아에서 CRRT를 효과적으로 시행할 수 있었고 생존율에는 CRRT 시작 전 PRISM III 점수, 승압제 투여 정도가 중요한 요인이었다.

• Clinical and Experimental Pediatrics
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• 제55권8호
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• pp.286-292
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• 2012

Purpose: Continuous renal replacement therapy (CRRT) is becoming the treatment of choice for supporting critically ill pediatric patients. However, a few studies present have reported CRRT use and outcome in neonates weighing less than 3 kg. The aim of this study is to describe the clinical application, outcome, and complications of CRRT in small neonates. Methods: A retrospective review was performed in 8 neonatal patients who underwent at least 24 hours of pumped venovenous CRRT at the Samsung Medical Center in Seoul, Korea, between March 2007 and July 2010. Data, including demographic characteristics, diagnosis, vital signs, medications, laboratory, and CRRT parameters were recorded. Results: The data of 8 patients were analyzed. At the initiation of CRRT, the median age was 5 days (corrected age, $38^{+2}$ weeks to 23 days), and the median body weight was 2.73 kg (range, 2.60 to 2.98 kg). Sixty-two patient-days of therapy were reviewed; the median time for CRRT in each patient was 7.8 days (range, 1 to 37 days). Adverse events included electrolyte disturbances, catheter-related complications, and CRRT-related hypotension. The mean circuit functional survival was $13.9{\pm}8.6$ hours. Overall, 4 patients (50%) survived; the other 4 patients, who developed multiorgan dysfunction syndrome, died. Conclusion: The complications of CRRT in newborns are relatively high. However, the results of this study suggest that venovenous CRRT is feasible and effective in neonates weighing less than 3 kg under elaborate supportive care. Furthermore, for using potential benefit of CRRT in neonates, efforts are required for prolonging filter survival.

• 중환자간호학회지
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• 제6권2호
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• pp.65-77
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• 2013

Purpose: The purpose of the study was to analyze the nursing activities related to continuous renal replacement therapy (CRRT) in the intensive care units (ICU). Methods: We developed a list of 31 CRRT related nursing activities based on literature review and reviewed by expert group. A total of 109 direct time measurement records by 43 ICU nurses were collected and analyzed in terms of total time per shift, frequency, standard time, difficulty and performance levels of each CRRT nursing activity. Results: The mean time for CRRT nursing activity was 85.60 minutes per 8 hour shift. Nurses have spent average $9.46{\pm}6.98$ minutes in a shift for "waste fluid bag change" activity. In addition, "check catheter location" was the most time consuming single activity. The most difficult activity was "counseling-answer" and the most competent one was "dialysis solutions change". Conclusion: The CRRT nursing activities accounted for a significant portion of total nursing workload. Practical allocation of nursing staff for CRRT patient along with development of a new nursing cost system need to be considered. Continuous nursing educational and training programs on CRRT should be developed.

• 대한임상독성학회지
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• 제7권2호
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• pp.150-155
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• 2009

Purpose: Extracorporeal elimination of drugs is a critical part of managing poisonings, although the indications and optimal method remain a matter of debate. The aim of this study is to report our clinical experiences with continuous renal replacement therapy (CRRT), as performed by emergency room physicians, as method of extracorporeal drug elimination in patients with poisoning. Methods: This study was a retrospective study of the consecutive patients who underwent CRRT, as performed by an emergency room physician, for acute poisoning. The patient characteristics, the kinds of drugs and the method of extracorporeal elimination were analyzed by reviewing the patients' charts. Results: During eleven months, 26 patients with acute poisoning underwent extracorporeal elimination (2 patients; intermittent hemodialysis, 24 patients; CRRT). The mean time from the decision to performing extracorporeal elimination was $206.0{\pm}36.8$ minutes for intermittent hemodialysis, $62.9{\pm}8.5$ minutes for continuous venoveno-hemodiafiltration (CVVHDF) and $56.6{\pm}6.8$ minutes for charcoal hemoperfusion. For the patients with CRRT, CVVHDF was conducted in 10 patients (3 patients; valproic acid, 2 patients; Lithium, 1 patient; salicylates, 1 patient; methanol) and charcoal hemoperfusion by using CRRT was done in 14 patients (13 patients; paraquat, 1 patient; dapsone). For the 12 patients who required hemodialysis due to severe poisoning, 7 patients underwent CRRT because of their unstable vital signs. Conclusion: CRRT was an effective method of extracorporeal drug elimination in patients with acute poisoning, and especially for the cases with unstable vital sign and for those patients who required an early start of extracorporeal elimination according to the characteristics of the drug. (ED note: the writing of the abstract was not clear. Check it carefully.)

• Childhood Kidney Diseases
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• 제11권2호
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• pp.247-254
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• 2007

목 적 : 세계적으로 급성 신부전을 가진 소아중환자의 경우 신대체요법으로서 CRRT가 우선적으로 적용되고 있는데 국내에서 CRRT에 대한 치료 결과나 이에 미치는 예후인자에 대한 연구가 드문 설정이다. 이에 저자들은 CRRT를 시행 받은 소아 환자군을 대상으로 치료결과와 예후인자를 알아보기 위해 본 연구를 시행하였다. 방 법 : 2003년 1월부터 2006년 12월까지 세브란스 어린이병원 소아과에서 CRRT를 시행 받은 소아 중환자 32명을 대상으로 하여 환자들이 입상적 특징과 생존율, 그리고 이에 미치는 예후인자를 생존군과 사망군으로 나누어 비교하였다. 결 과 : 총 32명의 평균 나이는 7.5세로 범위는 생후 4일에서 16살까지였고 평균 몸무게는 25.8kg로 최소 3.2kg 최고 63kg였다. 기저 질환 중 조혈모세포이식과 악성종양 환자군이 가장 많았고, 이 군에서 생존율이 가장 낮았다. 전체 생존자는 11명으로 생존율은 34.4%였고 예후인자에 대한 연구에서 CRRT 시작시 PRISM III 점수($9.8{\pm}5.3$ vs. $26.7{\pm}7.6$, P<0.0001), 승압제 사용 수 ($2.1{\pm}1.2$ vs. $3.0{\pm}1.0$, P=0.038)와 수분 저류 정도 (%FO, $5.2{\pm}6.0$ vs. $15.0{\pm}8.9$, P=0.002)가 사망군보다 생존군에서 의미 있게 낮았다. 또 다중 회귀분석을 통해 높은 수분 저류만이 독립적 위험인자임을 확인하였다. 결 론 : 저자는 이 연구를 통해 소아 급성 신부전 환자에서 생존율이 환자의 중증도와 체내 수분 저류와 연관성이 높다는 것을 확인하였고, 환자의 전신상태가 보다 좋을 때 특히 수분 저류가 시작되기 전에 CRRT를 빨리 시작하는 것이 생존율을 높일 수 있다는 결론을 얻을 수 있었다.