1.Subinguinal microsurgical varicocelectomy is safe and effective in a solitary testicle.
Piotr DOBRONSKI ; Karolina DOBRONSKA ; Lukasz KUPIS ; Piotr RADZISZEWSKI
Asian Journal of Andrology 2020;22(1):120-121
		                        		
		                        		
		                        		
		                        			Adult
		                        			;
		                        		
		                        			Asthenozoospermia/complications*
		                        			;
		                        		
		                        			Azoospermia/surgery*
		                        			;
		                        		
		                        			Humans
		                        			;
		                        		
		                        			Male
		                        			;
		                        		
		                        			Microsurgery/methods*
		                        			;
		                        		
		                        			Oligospermia/complications*
		                        			;
		                        		
		                        			Orchiectomy
		                        			;
		                        		
		                        			Seminoma/surgery*
		                        			;
		                        		
		                        			Testicular Neoplasms/surgery*
		                        			;
		                        		
		                        			Ultrasonography, Doppler, Color/methods*
		                        			;
		                        		
		                        			Urologic Surgical Procedures, Male/methods*
		                        			;
		                        		
		                        			Varicocele/surgery*
		                        			
		                        		
		                        	
2.Feasible study of carotid artery Doppler ultrasound blood flow measurement during chest compression cardiopulmonary resuscitation.
Hongyu WANG ; Sisen ZHANG ; Bai GAO
Chinese Critical Care Medicine 2019;31(3):309-312
		                        		
		                        			OBJECTIVE:
		                        			To determine the feasibility of ultrasound to measure blood flow on patients with chest compression cardiopulmonary resuscitation (CPR), and to find out a real-time, noninvasive hemodynamic evaluation method.
		                        		
		                        			METHODS:
		                        			A prospective study was conducted. All adult patients undergoing CPR admitted to Department of Emergency and intensive care unit (ICU) of Zhengzhou People's Hospital from May 2016 to November 2018 were enrolled. The blood flow over the right carotid arteries during chest compressions was recorded with a bedside ultrasound machine. The peak systolic flow velocity (PSV) and end diastolic flow velocity (EDV) of carotid artery were recorded at 1 minute after the start of CPR and 1 minute before the end of CPR. The mean compression frequency during the whole recovery period was recorded, the rate of compression reaching the standard was evaluated by ultrasound (the rate of compression 100-120 times/min was defined as up to standard), and the interruption time of compression was calculated retrospectively according to the ultrasound image data recorded during CPR.
		                        		
		                        			RESULTS:
		                        			Thirty-nine patients were enrolled, and 21 patients were successfully rescued, with a successful rate of 53.8%, the time of restoration of spontaneous circulation (ROSC) was (10.9±5.3) minutes. The time from CPR to retrieve an ultrasound image was 1.1-4.9 minutes, with an average of (2.5±1.2) minutes. Satisfactory ultra-sonographic images were obtained in 28 patients during the whole course of chest compression. The acquisition rate was 71.8% (28/39). In the process of compression, if the frequency of compression was less than 100 times/min or the velocity of carotid artery dropped (PSV < 30 cm/s), the chest compressors should be reminded and corrected in time. The PSV at 1 minute after CPR start of 28 patients with satisfactory ultrasound images was (62.9±18.5) cm/s, and the EDV was (13.9±3.5) cm/s, the PSV at 1 minute before the end of CPR was (55.4±18.4) cm/s, and the EDV was (12.9±3.7) cm/s. There was no significant difference in above parameters between the two time points (both P > 0.05), suggesting that satisfactory resuscitation effect was achieved in the whole process of CPR. The compression frequency of 28 patients was 100-149 times/min with an average of (117±47) times/min. The rate of compression with standard was 85.7% (24/28), and the total interruption time of compression accounted for 4.4% of all compression time (25.9 minutes/587.2 minutes).
		                        		
		                        			CONCLUSIONS
		                        			Ultrasound measurement of common carotid artery blood flow during CPR has the advantage of real-time and non-invasive, and it is feasible in clinical work.
		                        		
		                        		
		                        		
		                        			Adult
		                        			;
		                        		
		                        			Blood Flow Velocity/physiology*
		                        			;
		                        		
		                        			Cardiopulmonary Resuscitation/methods*
		                        			;
		                        		
		                        			Carotid Artery, Common/physiology*
		                        			;
		                        		
		                        			Feasibility Studies
		                        			;
		                        		
		                        			Humans
		                        			;
		                        		
		                        			Pressure
		                        			;
		                        		
		                        			Prospective Studies
		                        			;
		                        		
		                        			Retrospective Studies
		                        			;
		                        		
		                        			Ultrasonography, Doppler
		                        			
		                        		
		                        	
3.A retrospective review of single-institution outcomes with robotic-assisted microsurgical varicocelectomy.
Andrew MCCULLOUGH ; Leon ELEBYJIAN ; Joseph ELLEN ; Clay MECHLIN
Asian Journal of Andrology 2018;20(2):189-194
		                        		
		                        			
		                        			We report the largest single-center experience with robotic-assisted microscopic varicocelectomy (RAMV) in male infertility. From August 2012 to February 2015, men with infertility of at least a year and varicoceles underwent RAMV by a single surgeon. Varicocele was diagnosed on physical examination and confirmed by ultrasound by a single ultrasonographer. Preoperative hormone panel, semen analyses, and testicular Doppler ultrasound were obtained from all men and repeated at 3 months. One hundred and forty consecutive men (258 varicocelectomies) were included. Mean age and duration of infertility was 36.4 and 2.8 years, respectively. Median total and free testosterone increased by 145 ng dl-1 and 4.3 pcg ml-1 (44.3%), respectively (P < 0.0001). Median sperm concentration increased by 37.3% (P < 0.03). Median sperm motility and morphology did not significantly change. Median left and right testicular volume increased by 22.3% (P < 0.0001) and 12.6% (P < 0.0006), respectively. Hydroceles occurred 0.8% of procedures. We had no testicular artery injuries. Persistence of varicocele by Doppler ultrasound was 9.6%. Only 37.3% of patients required pain medications postoperatively. We concluded that RAMV is a safe and effective alternative for varicocele repair with outcomes comparable to historical traditional microsurgical approach.
		                        		
		                        		
		                        		
		                        			Adult
		                        			;
		                        		
		                        			Analgesics/therapeutic use*
		                        			;
		                        		
		                        			Humans
		                        			;
		                        		
		                        			Infertility, Male/surgery*
		                        			;
		                        		
		                        			Male
		                        			;
		                        		
		                        			Microsurgery/methods*
		                        			;
		                        		
		                        			Organ Size
		                        			;
		                        		
		                        			Pain, Postoperative/drug therapy*
		                        			;
		                        		
		                        			Retrospective Studies
		                        			;
		                        		
		                        			Robotic Surgical Procedures/methods*
		                        			;
		                        		
		                        			Sperm Count
		                        			;
		                        		
		                        			Sperm Motility
		                        			;
		                        		
		                        			Spermatozoa/pathology*
		                        			;
		                        		
		                        			Testis/pathology*
		                        			;
		                        		
		                        			Treatment Failure
		                        			;
		                        		
		                        			Treatment Outcome
		                        			;
		                        		
		                        			Ultrasonography, Doppler
		                        			;
		                        		
		                        			Urologic Surgical Procedures/methods*
		                        			;
		                        		
		                        			Varicocele/surgery*
		                        			
		                        		
		                        	
4.Clinical Evaluation of Color Doppler Ultrasound in Selecting the Optimal Treatment Modality for Infantile Hemangioma.
Min LI ; Juan LIU ; Maya VALESKA ; Dan LUO ; Bingrong ZHOU
Chinese Medical Sciences Journal 2017;32(2):100-106
		                        		
		                        			
		                        			Objective We investigated the efficacy and safety of 1064 nm Nd: YAG laser, intense pulsed light (IPL), and lauromacrogol injection in the treatment of hemangioma, in order to evaluate the value of color Doppler ultrasound guidance in choosing the optimal treatment modality. Methods Infantile patients who were clinical diagnosed as hemangiomas were randomly divided into group A, who had color Doppler ultrasound examinations before the treatment, and group B who had the treatment without ultrasound evaluation. Patients in the group A were assigned into subgroups according to the depth of lesion by sonography: group A-1 for those who had a lesion depth <1.2 mm, and took intense pulsed light therapy; group A-2 for those who had a lesion depth ≥1.2mm and < 3 mm, and took long pulse 1064 nm Nd:YAG laser therapy; group A-3 for those who had a lesion depth ≥3mm and <5 mm, and were treated by IPL combined with long pulse 1064 nm Nd:YAG laser treatment; Group A-4 for those who had a lesion depth ≥5 mm, and took lauromacrogol injection therapy. Patients in the group B took long pulse 1064 nm Nd:YAG laser treatment without preoperative ultrasound evaluation. The efficacy and adverse reactions of the treatments between the groups were evaluated and compared statistically.Results Totally 113 patients with 128 skin lesions were enrolled in this study, 85 in the group A (mean age 6.8±7.9 months) and 28 in the group B (mean age 6.9±9.9 months). The mean depth of hemangioma was 3.3±1.1 mm in the group A, ranging from 0.5-7.8 mm, with 0.8±0.4 mm, 2.2±0.4 mm, 4.2±0.6 mm and 6.2±0.7 mm in group A1, A2, A3 and A4, respectively. The cure rates and effective rates in the group A were significantly higher than those in the group B (cure rates: 64.5% vs 56.3%, U=3.378, P=0.045; effective rates: 89.5% vs 78.1%, U=4.163, P=0.041). The adverse effect rates of the group A (vesicle 20.0%, pigmentation 46.9%, scarring 17.7%) were lower than those of the group B (vesicle 21.9%, pigmentation 60.4%, scarring 25.0%). Incidences of pigmentation and scarring were statistically significantly different (U=3.884, P=0.034, and U=4.016, P=0.032 respectively) between the two groups.Conclusion With the guidance of color Doppler ultrasound, the efficacy and safety of long pulse 1064 nmNd:YAG laser, intense pulsed light, and lauromacrogol injection in the treatment of infantile hemangioma have better outcomes compared to laser treatment alone without preoperative ultrasound examination.
		                        		
		                        		
		                        		
		                        			Female
		                        			;
		                        		
		                        			Hemangioma
		                        			;
		                        		
		                        			diagnostic imaging
		                        			;
		                        		
		                        			pathology
		                        			;
		                        		
		                        			therapy
		                        			;
		                        		
		                        			Humans
		                        			;
		                        		
		                        			Infant
		                        			;
		                        		
		                        			Male
		                        			;
		                        		
		                        			Ultrasonography, Doppler, Color
		                        			;
		                        		
		                        			methods
		                        			
		                        		
		                        	
5.Value of sagittal color Doppler ultrasonography as a supplementary tool in the differential diagnosis of fetal cleft lip and palate.
Myoung Seok LEE ; Jeong Yeon CHO ; Sang Youn KIM ; Seung Hyup KIM ; Joong Shin PARK ; Jong Kwan JUN
Ultrasonography 2017;36(1):53-59
		                        		
		                        			
		                        			PURPOSE: The purpose of this study was to evaluate the feasibility and usefulness of sagittal color Doppler ultrasonography (CDUS) for the diagnosis of fetal cleft lip (CL) and cleft palate (CP). METHODS: We performed targeted ultrasonography on 25 fetuses with CL and CP, taking coronal and axial images of the upper lip and maxillary alveolar arch in each case. The existence of defects in and malalignment of the alveolus on the axial image, hard palate defects on the midsagittal image, and flow-through defects on CDUS taken during fetal breathing or swallowing were assessed. We compared the ultrasonography findings with postnatal findings in all fetuses. RESULTS: Alveolar defects were detected in 16 out of 17 cases with CP and four out of eight cases with CL. Alveolar malalignment and hard palate defects were detected in 11 out of 17 cases and 14 out of 17 cases with CP, respectively, but not detected in any cases with CL. Communicating flow through the palate defect was detected in 11 out of 17 cases of CL with CP. The accuracy of detection in axial scans of an alveolar defect and malalignment was 80% and 76%, respectively. Accuracy of detection of in mid-sagittal images of hard palate defect and flow was 80% and 86%, respectively. The overall diagnostic accuracy of combined axial and sagittal images with sagittal CDUS was 92%. CONCLUSION: Sagittal CDUS of the fetal hard palate is a feasible method to directly reveal hard palate bony defects and flow through defects, which may have additional value in the differential diagnosis of fetal CL and CP.
		                        		
		                        		
		                        		
		                        			Cleft Lip*
		                        			;
		                        		
		                        			Cleft Palate
		                        			;
		                        		
		                        			Congenital Abnormalities
		                        			;
		                        		
		                        			Deglutition
		                        			;
		                        		
		                        			Diagnosis
		                        			;
		                        		
		                        			Diagnosis, Differential*
		                        			;
		                        		
		                        			Fetus
		                        			;
		                        		
		                        			Lip
		                        			;
		                        		
		                        			Methods
		                        			;
		                        		
		                        			Palate*
		                        			;
		                        		
		                        			Palate, Hard
		                        			;
		                        		
		                        			Respiration
		                        			;
		                        		
		                        			Ultrasonography
		                        			;
		                        		
		                        			Ultrasonography, Doppler, Color*
		                        			;
		                        		
		                        			Ultrasonography, Prenatal
		                        			
		                        		
		                        	
6.Microsurgical bypass for varicocele with nutcracker syndrome.
Guo-Xiao CHEN ; Xiang-Sheng ZHANG ; Xiao-Bo ZHU ; Xin CHEN
National Journal of Andrology 2017;23(9):798-803
		                        		
		                        			Objective:
		                        			To investigate the clinical effect and feasibility of internal spermatic vein-inferior epigastric vein (ISV-IEV) bypass surgery in the treatment of varicocele complicated by left renal vein nutcracker syndrome (NCS).
		                        		
		                        			METHODS:
		                        			We retrospectively analyzed the clinical data about 30 cases of varicocele with left renal vein NCS treated by ISV-IEV bypass surgery in our hospital from June 2014 to February 2017. We reviewed the follow-up data and results of ultrasonography, routine urianlysis and semen routine examination.
		                        		
		                        			RESULTS:
		                        			All the operations were successfully accomplished and postoperative color Doppler ultrasonography showed that varicocele was cured in all the cases. At 6 months after surgery, sperm concentration and the percentage of grade a+b sperm were significantly improved ([34.47 ± 8.60] ×10⁶/ml and [63.54% ± 9.58] %) as compared with the baseline ([19.90 ± 8.97] ×10⁶/ml and [37.93 ± 8.73] %) (P <0.05). Hematuria was cured in 23 and alleviated in 1 of the 24 cases. Proteinuria disappeared in all the 14 cases, with neither scrotal pain symptoms nor obvious complications.
		                        		
		                        			CONCLUSIONS
		                        			ISV-IEV bypass surgery, with its advantages of safety, effectiveness, minimal invasiveness, and simple operation, deserves wide clinical application in the treatment of varicocele with left renal vein NCS.
		                        		
		                        		
		                        		
		                        			Anastomosis, Surgical
		                        			;
		                        		
		                        			methods
		                        			;
		                        		
		                        			Feasibility Studies
		                        			;
		                        		
		                        			Hematuria
		                        			;
		                        		
		                        			surgery
		                        			;
		                        		
		                        			Humans
		                        			;
		                        		
		                        			Male
		                        			;
		                        		
		                        			Microsurgery
		                        			;
		                        		
		                        			methods
		                        			;
		                        		
		                        			Proteinuria
		                        			;
		                        		
		                        			surgery
		                        			;
		                        		
		                        			Renal Nutcracker Syndrome
		                        			;
		                        		
		                        			complications
		                        			;
		                        		
		                        			Renal Veins
		                        			;
		                        		
		                        			Retrospective Studies
		                        			;
		                        		
		                        			Ultrasonography
		                        			;
		                        		
		                        			Ultrasonography, Doppler, Color
		                        			;
		                        		
		                        			Varicocele
		                        			;
		                        		
		                        			complications
		                        			;
		                        		
		                        			diagnostic imaging
		                        			;
		                        		
		                        			surgery
		                        			;
		                        		
		                        			Vascular Surgical Procedures
		                        			;
		                        		
		                        			methods
		                        			;
		                        		
		                        			Veins
		                        			;
		                        		
		                        			surgery
		                        			
		                        		
		                        	
7.Maternal uterine artery Doppler in the first and second trimesters as screening method for hypertensive disorders and adverse perinatal outcomes in low-risk pregnancies.
Rosiane Maciel SCANDIUZZI ; Caio Antonio de Campos PRADO ; Edward ARAUJO JÚNIOR ; Geraldo DUARTE ; Silvana Maria QUINTANA ; Fabrício DA SILVA COSTA ; Gabriele TONNI ; Ricardo de Carvalho CAVALLI ; Alessandra Cristina MARCOLIN
Obstetrics & Gynecology Science 2016;59(5):347-356
		                        		
		                        			
		                        			OBJECTIVE: To assess the maternal demographic characteristics and uterine artery (UA) Doppler parameters at first and second trimesters of pregnancy as predictors for hypertensive disorders (HDs) and adverse perinatal outcomes. METHODS: This prospective cohort study comprised 162 singleton low-risk women undergoing routine antenatal care. The left and right UA were assessed by color and pulsed Doppler and the mean pulsatility and resistance indices as well as the presence of a bilateral protodiastolic notch were recorded at 11 to 14 and 20 to 24 weeks' gestation. Multilevel regression analysis was used to determine the effects of maternal characteristics and abnormal UA Doppler parameters on the incidence of HD, small for gestational age newborn, cesarean section rate, Apgar score <7 at 1st and 5th minute, and admission to the neonatal intensive care unit. RESULTS: Fifteen women (9.2%) developed HD. UA mean resistance index (RI), UA mean pulsatility index, and parity were independent predictors of HD. Compared to the pregnancies with a normal UA mean RI at the first and second trimesters, pregnancies with UA mean RI >95th percentile only at the first trimester showed an increased risk for HD (odds ratio, 23.25; 95% confidence interval, 3.47 to 155.73; P<0.01). Similar result was found for UA mean pulsatility index >95th percentile (odds ratio, 9.84; 95% confidence interval, 1.05 to 92.10; P=0.05). The model including maternal age, maternal and paternal ethnicity, occupation, parity and UA mean RI increased the relative risk for HD (area under receiver operating characteristics, 0.81). CONCLUSION: A first-trimester screening combining maternal characteristics and UA Doppler parameters is useful to predict HD in a low-risk population.
		                        		
		                        		
		                        		
		                        			Apgar Score
		                        			;
		                        		
		                        			Cesarean Section
		                        			;
		                        		
		                        			Cohort Studies
		                        			;
		                        		
		                        			Female
		                        			;
		                        		
		                        			Gestational Age
		                        			;
		                        		
		                        			Humans
		                        			;
		                        		
		                        			Hypertension, Pregnancy-Induced
		                        			;
		                        		
		                        			Incidence
		                        			;
		                        		
		                        			Infant, Newborn
		                        			;
		                        		
		                        			Intensive Care, Neonatal
		                        			;
		                        		
		                        			Mass Screening*
		                        			;
		                        		
		                        			Maternal Age
		                        			;
		                        		
		                        			Methods*
		                        			;
		                        		
		                        			Occupations
		                        			;
		                        		
		                        			Parity
		                        			;
		                        		
		                        			Pregnancy
		                        			;
		                        		
		                        			Pregnancy Trimester, First
		                        			;
		                        		
		                        			Pregnancy Trimester, Second*
		                        			;
		                        		
		                        			Pregnancy*
		                        			;
		                        		
		                        			Prospective Studies
		                        			;
		                        		
		                        			ROC Curve
		                        			;
		                        		
		                        			Ultrasonography, Doppler
		                        			;
		                        		
		                        			Uterine Artery*
		                        			
		                        		
		                        	
8.Fetal Non-invasive Electrocardiography Contributes to Better Diagnostics of Fetal Distress: A Cross-sectional Study Among Patients with Pre-eclampsia.
Annals of the Academy of Medicine, Singapore 2015;44(11):519-523
INTRODUCTIONFetal distress is a result of acute or chronic disturbances in the system of "mother-placenta-fetus" in pre-eclampsia (PE). The aim of the investigation was to compare the accuracy of antenatal fetal distress diagnostics in cases of traditional cardiotocography (CTG) waveform evaluation and analysis of morphological non-invasive electrocardiogram (ECG) parameters in anterpartum patients with PE.
MATERIALS AND METHODSFetal non-invasive ECG antenatal recordings of 122 pregnant patients at 34 to 40 weeks of gestation were examined. In Group I, there were 32 women with physiological gestation and normal fetal condition according to haemodynamic Doppler values. Group II involved 48 patients with mild and moderate PE whom were performed Doppler investigation. In Group III, 42 patients with severe PE were monitored with haemodynamic Doppler.
RESULTSFetal autonomic tone was lower with the relative increase of low frequency (LF) branch in the patients of pre-eclamptic group. The increased value of the amplitude of mode (AMo) and stress index (SI) was associated with adrenergic overactivity. It has induced pQ and QT shortening, increased T/QRS ratio and decelerations appearance. The rate of antenatal fetal distress retrospectively was 31.1 % in PE. The traditional analysis of CTG parameters has showed sensitivity (72.7%) and specificity (87.1%). In addition to the conventional CTG analysis, evaluation of ECG parameters has contributed to better diagnostics of fetal distress. Sensitivity and specificity of non-invasive fetal ECG were absolutely equal in this study (100%).
CONCLUSIONThe results suggest that fetal non-invasive ECG monitoring is more objective than conventional CTG.
Cardiotocography ; methods ; Cross-Sectional Studies ; Electrocardiography ; methods ; Female ; Fetal Distress ; diagnosis ; physiopathology ; Fetal Monitoring ; Heart Rate, Fetal ; Humans ; Pre-Eclampsia ; Pregnancy ; Pregnancy Trimester, Third ; Retrospective Studies ; Sensitivity and Specificity ; Severity of Illness Index ; Ultrasonography, Doppler ; Ultrasonography, Prenatal
9.Clinical application of perforator propeller flaps with anastomosis of superficial veins.
Tao LI ; Zhenbing CHEN ; Xiaobin CONG ; Fangxing AI ; Pan ZHOU ; Guangxiang HONG
Chinese Journal of Plastic Surgery 2015;31(2):107-110
OBJECTIVETo investigate the clinical effect of anastomosis of superficial veins for improving the drainage of perforator propeller flaps.
METHODSFrom Sept. 2011 to Dec. 2012, 11 cases with soft tissue defects and chronic ulcer wound at extremities were treated with adjacent perforator propeller flaps, which were pedicled by the peroneal artery(5 cases), or the lateral supramalleolar artery(3 cases), or the ulnar artery (2 cases), or the posterior interrosseous artery (1 case). The wound size ranged from from 3.0 cm x 2. 5 cm to 11. 0 cm x 4. 0 cm, and the falps size ranged from 6 cm x 3 cm to 21 em x 5 cm. One superficial vein in all the flaps was anastomosed with superficial vein in the recipient area. The blood supply of the flaps were recorded after operation 1 - 3 months after operation, the fluency of anastomosed vein was detected by color Doppler ultrasound. Flap swelling evaluations were performed in early 3 months and later 3 - 6 months, and the results were classified into 4 grading degrees. 6 months later, Questionnaire of the flap aesthetic satisfactory was performed for seven patients during follow-up period.
RESULTS9 flaps survived completely, two flaps had partial marginal skin necrosis in the distal end, which were both managed with surgical debridement, and both wounds healed in two months. 9 cases were followed up for more than 12 - 19 months. The early rsults of flap swelling evaluations were: I degree 0 case, II degree 8 cases, III degree 3 cases, IV degree 0 case, and the later results were: I degree 7 cases, II degree 4 cases, III degree 0 case, IV degree 0 case. The flaps had ideal appearance, good contour, and high aesthetic satisfactory (100%). The mean flap survival area rate of veins anastomosed was (98. 6 ± 9. 7) %.
CONCLUSIONSPerforator propeller flaps with anastomosis of superficial veins can improve the flap venous drainage, avoid transient venous venous congestion, so as to increase the flap survival. It is an effective way for improving the vein drainage.
Anastomosis, Surgical ; methods ; Debridement ; Extremities ; blood supply ; Graft Survival ; Humans ; Leg Ulcer ; pathology ; surgery ; Perforator Flap ; transplantation ; Regional Blood Flow ; Tibial Arteries ; Ulnar Artery ; Ultrasonography, Doppler, Color ; Veins ; surgery
10.Renal Doppler and Novel Biomarkers to Assess Acute Kidney Injury in a Swine Model of Ventricular Fibrillation Cardiac Arrest.
Xue MEI ; Chen-Chen HANG ; Shuo WANG ; Chun-Sheng LI ; Ze-Xing YU
Chinese Medical Journal 2015;128(22):3069-3075
BACKGROUNDMajority of the research on cardiac arrest (CA) have focused on post-CA brain injury and myocardial dysfunction, the renal dysfunction and acute kidney injury (AKI) in other critical illnesses after CA have not been well described. This study was designed to assess AKI with renal Doppler and novel AKI biomarkers in a swine model of ventricular fibrillation cardiac arrest (VFCA).
METHODSThirty healthy piglets were divided into VFCA group (n = 22) and Sham group (n = 8) in a blinded manner. Mean arterial pressure, heart rate, and cardiac output were recorded continuously. Cardiac arrest (CA) was induced by programmed electric stimulation in the VFCA group, and then cardiopulmonary resuscitation was performed. Twenty piglets returned of spontaneous circulation (ROSC) and received intensive care. Blood and urine samples were collected for AKI biomarkers testing, and Color Doppler flow imaging was performed at baseline, 6 h, 12 h, and 24 h, respectively after ROSC. At ROSC 24 h, the animals were sacrificed and a semi-quantitative evaluation of pathologic kidney injury was performed.
RESULTSIn the VFCA group, corrected resistive index (cRI) increased from 0.47 ± 0.03 to 0.64 ± 0.06, and pulsatility index (PI) decreased from 0.82 ± 0.03 to 0.68 ± 0.04 after ROSC. Cystatin C (CysC) in both serum and urine samples increased at ROSC 6 h, but neutrophil gelatinase-associated lipocalin (NGAL) in serum increased to 5.34 ± 1.68 ng/ml at ROSC 6 h, and then decreased to 3.16 ± 0.69 ng/ml at ROSC 24 h while CysC increasing constantly. According to the renal histopathology, 18 of 20 animals suffered from kidney injury. The grade of renal injury was highly correlated with RI, cRI, NGAL, and CysC. Linear regression equation was established: Grade of renal injury = 0.002 × serum CysC + 6.489 × PI + 4.544 × cRI - 8.358 (r2 = 0.698, F = 18.506, P < 0.001).
CONCLUSIONSAKI is common in post-CA syndrome. Renal Doppler and novel AKI biomarkers in serum and urine are of significant importance as early predictors of post-CA AKI.
Acute Kidney Injury ; blood ; etiology ; Animals ; Biomarkers ; blood ; Cystatin C ; blood ; Disease Models, Animal ; Female ; Heart Arrest ; blood ; complications ; Lipocalins ; blood ; Male ; Swine ; Ultrasonography, Doppler ; methods ; Ventricular Fibrillation ; blood ; complications
            
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