The cerebral hemodynamic disorders are most likely to occur in preterm infants, especially in extremely preterm infants with gestational age <28 weeks, due to the immaturity of cerebral vascular development and poor autoregulation of cerebral blood flow. Also the neurons, oligodendrocytes and their precursors in preterm infants are abnormally sensitive to hypoxia and ischemia with low tolerance and high vulnerability, which lead to a higher incidence of brain damage and neurological sequelae in preterm infants than that in full-term infants. Because brain injury in the premature often lacks the obvious nervous system symptom and the sign clinically, it is easy to be misdiagnosed and hence suitable treatment opportunity is missed. Cranial ultrasonography, MRI and EEG are the special examinations for early diagnosis of brain injury in preterm infants. In the diagnosis of early intracranial hemorrhage, cranial ultrasonography is superior to both MRI and EEG, but MRI especially DWI has the highest diagnostic value in the evaluation of leukoencephalomalacia, and EEG plays a supporting role in diagnosis of brain injury in each period. The three techniques have their own advantages and disadvantages. In clinical practice, if three techniques can be rationally used for the diagnosis of brain damage in preterm infants, it would be helpful to detect the disease in time and treat appropriately as soon as possible, and thus reduce the neurological sequelae and disability in preterm infants, and improve the long-term prognosis.

OBJECTIVE: To explore the extralaryngeal furcation variation of the recurrent laryngeal nerve (RLN) in total thyroidectomy. METHOD: The clinical data of 216 RLNs from 108 patients undergone total thyroidectomy were retrospectively analyzed. RESULT: RLN was found during every operation and exposed in whole course until access into larynx. Twenty (9.26%) pieces of RLNs showed bifurcated or trifurcated RLNs before access into larynx. Ratio of furcation is lower than that reported before internationally. Bifurcations of RLNs on the left were more than that on the right. CONCLUSION The protection of RLN is important for thyroid operation, especially in total thyroidetomy. Variation of extralaryngeal furcation of RLN usually leads to injury of RLN. Understanding of variation of RLN could decrease nerve function related complication.
Humans ; Larynx ; Recurrent Laryngeal Nerve ; pathology ; Recurrent Laryngeal Nerve Injuries ; diagnosis ; Retrospective Studies ; Thyroid Gland ; surgery ; Thyroidectomy

Objective To investigate the effect of the modified surgery for spontaneous rupture of esophagus (SRE) so as to improve treatmeut level.Methods Clinical data and surgical methods of 16 SRE patients including four patients with mid-esophagus ruptures and 12 with lower esophagus ruptures treated between February 1999 and June 2011 were analyzed retrospectively.All patients had only one laceration with the gap length of 1.5-5 cm (median 2.5 cm).Eleven patients had rupture into the left breast,two had rupture into the right chest,with no rupture into the chest in three patients.Ten patients suffered from hydropneumothorax and five from subcutaneous emphysema.Thc esophageal mucosas rathcr than muscular layers of all patients were sutured disconnectedly with absorbable thread.Omentum majus were embedded and fixed to muscular layer on the edge of esophagus rupture site.Fundus ventriculi were suspended and fixed to the dome of diaphragm.In the meantime,diaphragmatic hiatus were reconstructed above the esophagus rupture site for lower esophagus ruptures.Results The time from SRE attack to operation ranged from one hour to three days.Eleven patients were repaired within 24 hours of SRE onset and five patients were repaired after 24 hours of SRE onset.All patients got through the perioperative period smoothly and survived the operation with cure rate of 100％.The median hospital stay was 18.5 days.No esophageal narrow or canceration were found during follow-up (range,1-10 years),but two patients suffered from reflux which were relieved significantly after conservative treatment.Conclusion For treatment of SRE,interrupted suture for esophageal mucosal layers,omentum majus embedding instead of esophageal muscular layer suture and simultaneous anti-reflux operations can significantly reduce incidence of complications like esophageal fistula,stenosis and reflux and improve the cure rate.

Heart failure and stroke are the important causes of death worldwide, and both are closely related. This article reviews the prevention and reperfusion therapy of ischemic stroke in patients with heart failure.

Objective:To summarize the clinical characteristics and experiences in the diagnosis and treatment of congenital tuberculosis.Methods:This study involved four infants with congenital tuberculosis diagnosed in Guangdong Women and Children Hospital from January 2010 to January 2020. Moreover, publications of 52 congenital tuberculosis cases from Chinese hospitals between January 1994 and January 2019 were retrieved from Wanfang Database, China National Knowledge Infrastructure and PubMed. Clinical data of all patients were retrospectively analyzed.Results:All four cases we reported here were preterm infants with the onset of the disease at 14-30 d after birth and received anti-tuberculosis treatment. The interval between disease onset and diagnosis was 1-34 d. One baby was cured, one was improved, while the other two died. The median age at the onset of the disease in these 56 cases (including the four we reported and 52 from literature) was 14.5 d (7.0-20.7 d) and the median interval between the onset and diagnosis was 10.5 d (7.5~22.0 d). Forty-eight (88.9%) out of the 54 mothers were suffered from active tuberculosis during the perinatal period, including 16 diagnosed before delivery. The main clinical symptoms in these neonates were fever (82.1%, 46/56), respiratory distress (69.6%, 39/56), drowsiness and/or irritation (57.1%, 32/56), cyanosis (53.6%, 30/56), feeding difficulties (53.6%, 30/56), hepatomegaly (48.2%, 27/56) and splenomegaly (41.1%, 23/56). The positive rates of acid-fast staining, culture and polymerase chain reaction detection of Mycobacterium tuberculosis in sputum smears or gastric juice were all less than 33.3%, and the positive rate of spot test for Mycobacterium tuberculosis infection was 7/12. Chest X-ray showed miliary nodules and diffused nodules-patchy in 37.0% (20/54) and 25.9% (14/54) of the patients, respectively. Abdominal ultrasonography found 52.4% (11/21) with hepatomegaly and/or splenomegaly and 47.6% (10/21) with multiple low-density nodules in liver and spleen. The misdiagnosis rate was 28.6% (16/56). The overall mortality rate was 51.8% (29/56). However, the figure was 28.9% (11/38) in infants with anti-tuberculosis treatment and 18/18 in those without. Conclusions:Nonspecific clinical manifestations of congenital tuberculosis, together with low detection rate through laboratory tests, may lead to a higher rate of misdiagnosis and mortality. Therefore, a comprehensive assessment of the mothers of infants with suspected congenital tuberculosis is necessitated. Diagnosis and effective anti-tuberculosis treatment as early as possible are essential to improve the prognosis.

Purpose: This study aims to explore whether neoadjuvant chemotherapy with immunotherapy (NACI) leads to different tumor shrinkage patterns, based on magnetic resonance imaging (MRI), compared to neoadjuvant chemotherapy (NAC) alone in patients with triple-negative breast cancer (TNBC). Additionally, the study investigates the relationship between tumor shrinkage patterns and treatment efficacy was investigated. Methods: This retrospective study included patients with TNBC patients receiving NAC or NACI from January 2019 until July 2021 at our center. Pre- and post-treatment MRI results were obtained for each patient, and tumor shrinkage patterns were classified into three categories as follows: 1) concentric shrinkage (CS); 2) diffuse decrease; and 3) no change.Tumor shrinkage patterns were compared between the NAC and NACI groups, and the relevance of the patterns to treatment efficacy was assessed. Results: Of the 99 patients, 65 received NAC and 34 received NACI. The CS pattern was observed in 53% and 20% of patients in the NAC and NACI groups, respectively. Diffuse decrease pattern was observed in 36% and 68% of patients in the NAC and NACI groups. The association between the treatment regimens (NAC and NACI) and tumor shrinkage patterns was statistically significant (p = 0.004). The postoperative pathological complete response (pCR) rate was 45% and 82% in the NAC and NACI groups (p < 0.001), respectively. In the NACI group, 17% of patients with the CS pattern and 56% of those with the diffuse decrease pattern achieved pCR (p = 0.903). All tumor shrinkage patterns were associated with achieved a high pCR rate in the NACI group. Conclusion Our study demonstrates that the diffuse decrease pattern of tumor shrinkage is more common following NACI than that following NAC. Furthermore, our findings suggest that all tumor shrinkage patterns are associated with a high pCR rate in patients with TNBC treated with NACI.

Objective:To determine the dose-effect relationship of oxycodone inhibiting responses to endotracheal intubation with combination of etomidate-rocuronium during induction of general anesthesia.Methods:A total of 120 patients, aged 20-63 yr, with body mass index of 18.0-25.2 kg/m 2, of American Society of Anesthesiologists physical status Ⅰ or Ⅱ, scheduled for elective surgery under general anesthesia with tracheal intubation, were divided into 4 groups ( n=30 each) using a random number table method: group O 0.15, group O 0.23, group O 0.34 and group O 0.51.In O 0.15, O 0.23, O 0.34 and O 0.51 groups, oxycodone 0.15 mg/kg, 0.23 mg/kg, 0.34 mg/kg and 0.51 mg/kg were injected intravenously, respectively, 3 min later etomidate 0.3 mg/kg and rocuronium 0.8 mg/kg were intravenously injected in turn, and tracheal intubation was performed using Macintosh laryngoscope.Heart rate (HR), systolic blood pressure (SBP) and diastolic blood pressure immediately before intubation and the peak levels of HR, BP and diastolic blood pressure within 3 min after intubation were recorded.The response to endotracheal intubation was defined by the SBP and (or) HR having increased by more than 30% following intubation.The occurrence of adverse events during induction of anesthesia were recorded. Results:The rate of response to endotracheal intubation was 97%, 73%, 27%, and 3% in O 0.15, O 0.23, O 0.34 and O 0.51 groups, respectively.The median effective dose (ED 50) (95% confidence interval) of oxycodone inhibiting responses to endotracheal intubation was 0.259 (0.230-0.292) mg/kg, and the 95% effective dose (ED 95) (95% confidence interval) was 0.387 (0.358-0.420) mg/kg.Only the incidence of hypotension (27%) was significantly higher in group O 0.51 than in the other 3 groups ( P<0.05). Conclusion:With combination with etomidate-rocuronium, the ED 50 and ED 95 of oxycodone inhibiting responses to endotracheal intubation performed using Macintosh laryngoscope during induction of general anesthesia are 0.259 mg/kg and 0.387 mg/kg, respectively, and the optimum dose 0.51 mg/kg is recommended.

Objective:To study the predictive value of vasoactive-inotropic score (VIS), fluid overload (FO) and lactate level for the outcome of preterm infants with refractory septic shock.Methods:Preterm infants diagnosed with refractory septic shock and required hydrocortisone treatment in our Department from January 2016 to December 2021 were analyzed retrospectively. Preterm infants were assigned into three gestational age groups (<28 weeks, 28-31 weeks, 32-36 weeks). According to the outcome of the disease, the children were further divided into good prognosis group and poor prognosis group. The relationship between the maximum VIS, FO and the mean lactic acid before hydrocortisone and the outcome of refractory septic shock was analyzed by receiver operating characteristic (ROC) curve, the cut-off point of ROC curve was calculated to obtain the predictive efficacy of the three indicators for the outcome of refractory septic shock in preterm infants.Results:A total of 50 preterm infants with refractory septic shock and received hydrocortisone treatment were enrolled, including 20 in the good prognosis group and 30 in the poor prognosis group. There were no significant differences in the maximum VIS, FO and mean lactic acid before hydrocortisone treatment between the two groups of gestational age of <32 weeks ( P> 0.05). The maximum VIS, FO and mean lactic acid of gestational age of 32-36 weeks in the poor prognosis group were higher than those in the good prognosis group, VIS: 56.1±15.7 vs. 37.1±12.9, FO (%): 108.2 (78.6,137.7) vs. 55.5 (10.3, 100.7), and mean lactic acid (mmol/L): 8.3 (4.6, 12.0) vs. 4.8 (-0.8, 10.5), all P<0.05. The area under the ROC curve of the mean lactic acid was the largest, the cut-off value was 4.1 mmol/L, and the Youden index was 1.732. Conclusions:VIS, FO and lactate level are difficult to be used for determining the outcome of refractory septic shock in preterm infants of <32 weeks. While the mean lactic acid has the best predictive performance in preterm infants of 32-36 weeks.

Objective:To study the efficacy of norepinephrine in the treatment of neonates with septic shock.Methods:A prospective observation study of neonates with septic shock, who received norepinephrine in the neonatal intensive care unit of Guangdong Women and Children's Hospital from January 2019 to November 2020. All infants had functional echocardiography for hemodynamic monitoring before norepinephrine treatment and 1 hour thereafter blood pressure, heart rate, arterial blood gas analyses were recorded at the same time. The intravenous fluid volume and urine volume from the diagnosis of shock to the commencement of norepinephrine therapy (T0) and 24 hours thereafter (T1) were recorded, and the hemodynamic parameters, vasoactive drugs and clinical outcomes were analyzed.Results:A total of 66 newborns were enrolled, including 27 cases of mild shock, 33 cases of moderate shock and 6 cases of severe shock. 48 were male infants, 38 cases were premature infants. The gestational age was (35.2±4.1) weeks and the birth weight was (2 476±909) g. The median time of shock diagnosis was 2 days after birth, and the median shock score was 4 points. The median time from the diagnosis of shock to the start of norepinephrine treatment was 7.5 hours. Compared with that before norepinephrine treatment, stroke volume, stroke volume index, cardiac output, cardiac index, left ventricular ejection fraction, shortening fraction, systolic blood pressure, diastolic blood pressure, mean arterial pressure, blood pH and BE at 1 hour after treatment were increased, heart rate and blood lactic acid were decreased, the differences were statistically significant ( P<0.05). Urine volume was increased 24 hours after treatment ( P<0.05), and fluid overload decreased ( P<0.05). The maximum dopamine dose, the down-regulation time and duration of vasoactive drugs were positively correlated with the time to start norepinephrine therapy ( r=0.325、 r=0.383、 r=0.319, P<0.05). Among the 66 infants, 58 infants with shock had been corrected and 14 infants died within 28 days. Conclusions:Norepinephrine is effective and feasible in the treatment of neonatal septic shock and can significantly improve hemodynamic parameters.

Objective:To study the predictive value of vasoactive-inotropic score (VIS), shock score and lactate level for the outcome of term infants with septic shock.Methods:From January 2019 to October 2020, clinical data of term infants with septic shock admitted to our department were reviewed. According to their clinical outcome, the infants were assigned into the survival group and the deceased group and the differences of the two groups were compared. Logistic regression was used to determine the risk factors of mortality in term infants with septic shock. Receiver operating characteristic curve was used to compare the predictive efficacy of VIS, shock score and lactate level for the outcome of septic shock.Results:Significant differences existed between the survival group and the deceased group in the following: maximum VIS, maximum shock score, maximum lactate level, the mean value of VIS during the second 24 h, the mean value of lactate during the first and second 24 h ( P < 0.05). Meanwhile, maximum VIS ( OR = 1.038, 95% CI 1.014~1.063), maximum shock score ( OR = 2.372, 95% CI 1.126~4.999) and the mean value of lactate during the first 24h ( OR = 2.983, 95% CI 1.132~7.862) were correlated with mortality in the infants ( P < 0.05). The area under the curve of maximum VIS was the most prominent, with 58.5 as cut-off. Conclusions:Among the three indicators, VIS has the best predictive value for mortality outcome in term infants with septic shock, followed by shock score and lactate level.