The real-time monitoring of cerebral hemorrhage can reduce its disability and fatality rates greatly. On the basis of magnetic induction phase shift, we in this study used filter and amplifier hardware module, NI-PXI data-acquisition system and LabVIEW software to set up an experiment system. We used Band-pass sample method and correlation phase demodulation algorithm in the system. In order to test and evaluate the performance of the system, we carried out saline simulation experiments of brain hemorrhage. We also carried out rabbit cerebral hemorrhage experiments. The results of both saline simulation and animal experiments suggested that our monitoring system had a high phase detection precision, and it needed only about 0.030 4s to finish a single phase shift measurement, and the change of phase shift was directly proportional to the volume of saline or blood. The experimental results were consistent with theory. As a result, this system has the ability of real-time monitoring the progression of cerebral hemorrhage precisely, with many distinguished features, such as low cost, high phase detection precision, high sensitivity of response so that it has showed a good application prospect.
ObjectiveTo explore the influencing factors for the prognosis of intracerebral hemorrhage in extremely old patients. MethodsWe retrospectively analyzed the clinical data of 104 extremely old intracerebral hemorrhage patients (≥80 years old) treated between June 2010 and June 2013. According to Glass Outcome Score, the patients were divided into good outcome group (with a score of 4-5) and poor outcome group (with a score of 1-3). The age, gender, consciousness on admission, mean arterial pressure, systolic blood pressure on admission, and complication rate were analyzed and compared between the two groups of patients. ResultsA total of 104 patients were recruited in our study, with 62 in the good outcome group and 42 in the poor outcome group. The gender, age, average arterial pressure on admission between the two groups were not significantly different (P>0.05). The consciousness score at admission in the good outcome group (13.79±2.38) was significantly higher than that of the poor outcome group (8.24±3.80, P<0.05). The complication rate (45.2% vs. 88.1%) and systolic blood pressure on admission [(168.87±25.03) vs. (181.83±29.82) mm Hg (1 mm Hg=0.133 kPa] in the good outcome group were both significantly lower than those in the poor outcome group (P<0.05). ConclusionFor extremely old intracerebral hemorrhage patients, consciousness score and systolic blood pressure at admission, and complication rate are the influencing factors for the prognosis. In addition, a systolic pressure on admission above 180 mm Hg can be a risk factor for poor prognosis in extremely old patients.
PURPOSE:To search for the occult choroidal neovascularization(CNV)of age-related macular degeneration (AMD)with macular hemorrhage using indocyanine green angiography(ICGA). METHODS:FFA and ICGA were performed in a series of 22 cases(24 eyes)of AMD with macular hemorrhage,and the findings of both angiograms were compared each other. RESULTS :ICGA was found to be superior than FFA in evaluating the occult CNV of AMD with hemorrhage owing to the following outstanding findings in this series,i.e,in judging the presence,position,number and range of the occult CNV. CONCLUSION:ICGA is an important technique in diagnosing the subretinal occult CNV in AMD with macular hemorrhage,and useful in selecting therapeutic measures including photocoagulation and surgical treatment. （Chin J Ocul Fundus Dis,1997,13: 146-149）
Objective To apply the method of evidence-based medicine to identify the best therapy option for an emergency patient with upper gastrointestinal hemorrhage. Methods According to time and logical sequence of clinical events, a complete decision tree was built after the following steps to find the best treatment: clear decision-making, drawing decision tree graphics, listing the outcome probability, giving appropriate values to the final outcome, calculating and determining the best strategies. Results The performance of endoscopic therapy for the patient with upper gastrointestinal hemorrhage within the first six hours had little effect on the prognosis. Interventional therapy after the failure of endoscopic therapy had less mortality than direct surgical exploration. Conclusion Making clinical decision analyses via drawing the decision tree can help doctors clarify their ideas, get comprehensive views of clinical problems, and ultimately choose the best treatment strategy for patients.
Objective To investigate the clinical manifestations, CT and prognosis of pontine hemorrhage. Methods Analyze the summarized clinical data of 21 patients with pontine hemorrhage retrospectively. Results The period of 46-70 years old was vulnerable to pontine hemorrhage,and hypertension was the major risky factor of it. The death rate of pontine hemorrhage inceases when the bleeding beyond 5 ml. Nine of the 21 patients survived. Conclution The prognosis was highly related to the bleeding amount, the position of bleeding and the complication.
ObjectiveTo explore the risk factors and bleeding points associated with postoperative hemorrhage after thyroidectomy and provide clinical basis for prevention of postoperative bleeding.MethodsThe clinical data of 21 patients with postoperative hemorrhage and 63 patients without postoperative hemorrhage who underwent thyroidectomy from Nov. 2010 to Nov. 2017 in West China Hospital were retrospectively analyzed.ResultsUnivariate analysis showed that hypertension, maximum tumour dimension, lymph node metastasis, recurrent laryngeal nerval infiltration, T stage, N stage, serum triglyceride, and serum high density lipoprotein were significantly associated with postoperative hemorrhage (P<0.05). Multivariate analysis showed that lymph node metastasis (OR=16.219, P=0.002) and low serum high density lipoprotein (OR=0.035, P=0.006) were risk factors for postoperative hemorrhage. Among the patients with postoperative bleeding, the most common five bleeding sites were: ribbon muscle and sternocleidomastoid muscle (both was 19.2%), esophageal tracheal surface blood vessels (11.5%), thyroid bed (7.7%), and larynx recurrent paravascular small vessels (7.7%).ConclusionsLymph node metastasis and serum HDL are independent risk factors of hemorrhage after thyroidectomy. The predilection site for postoperative bleeding is mainly the neck muscle.
The incidence, mortality, and disability rate of spontaneous intracerebral hemorrhage (SICH) are high, and its surgical and medical treatment is still controversial. With the development of micro-neurosurgical technology, minimally invasive surgery (MIS) has made great progress in the treatment of SICH. It can remove intracerebral hematoma in the early stage after SICH and minimize or eliminate secondary brain injury, which is of great significance to reducing the mortality and disability rate. For many years, due to its continuous progress, MIS has been more and more widely used in the treatment of SICH. This article mainly reviews the progress of MIS in SICH and related clinical research at home and abroad, and briefly describes several innovative techniques related to MIS, which aims to promote the exchange of clinical experience in MIS of SICH.
ObjectiveTo observe the efficacy and safety of vitrectomy combined with subretinal injection of alteplase (tPA) and intravitreal injection of Conbercept in the treatment of large area submacular hemorrhage (SMH) secondary to polypoidal choroidal vasculopathy (PCV). MethodsA retrospective clinical study. From January to September 2021, 32 eyes of 32 patients with massive SMH secondary to PCV diagnosed in the Affiliated Eye Hospital of Nanchang University were included in the study. Large SMH was defined as hemorrhage diameter ≥4 optic disc diameter (DD). There were 32 patients (32 eyes), 20 males and 12 females. The mean age was (72.36±8.62) years. All patients had unilateral disease.The duration from onset of symptoms to treatment was (7.21±3.36) days. All patients underwent best corrected visual acuity (BCVA) and optical coherence tomography (OCT) examination. BCVA examination was performed using the international standard visual acuity chart, which was converted to the logarithm of the minimum angle of resolution (logMAR) visual acuity during statistics. The central macular thickness (CMT) was measured by spectral domain-OCT. The average size of SMH was (6.82±1.53) DD. The logMAR BCVA 1.73±0.44; CMT was (727.96±236.40) μm. All patients were treated with 23G pars plana vitrectomy combined with subretinal injection of tPA and intravitreal injection of Conbercept. At 1, 3, 6 and 12 months after treatment, the same equipment and methods were used for relevant examinations before treatment. The changes of BCVA and CMT, the clearance rate of macular hemorrhage, and the complications during and after surgery were observed. BCVA and CMT before and after treatment were compared by repeated measures analysis of variance. ResultsCompared with before treatment, BCVA gradually increased at 1, 3, 6 and 12 months after treatment, and the differences were statistically significant (F=77.402, P＜0.001). There was no significant difference in BCVA between any two groups at different time points after treatment (P＞0.05). Correlation analysis showed that BCVA at 12 months after treatment was negatively correlated with the course of disease (r=－0.053, P=0.774). One week after treatment, macular hemorrhage was completely cleared in 30 eyes (93.75%, 30/32). The CMT was (458.56±246.21), (356.18±261.46), (345.82±212.38) and (334.64±165.54) μm at 1, 3, 6 and 12 months after treatment, respectively. Compared with before treatment, CMT decreased gradually after treatment, and the difference was statistically significant (F=112.480, P＜0.001). There were statistically significant differences in different follow-up time before and after treatment (P＜0.001). The number of treatments combined with Conbercept during and after surgery was (4.2±1.8) times. At the last follow-up, there was no recurrence of SMH, retinal interlamellar effusion and other complications. Conclusion Subretinal injection of tPA combined with intravitreal injection of Conbercept is safe and effective in the treatment of large SMH secondary to PCV, and it can significantly improve the visual acuity of patients.
ObjectiveTo compare the effects of intravitreal tamponade of C3F8 with silicon oil on postoperative vitreous hemorrhage and visual prognosis after vitrectomy for proliferative diabetic retinopathy (PDR). MethodsThe clinical data of 121 patients (127 eyes) who underwent primary vitrectomy due to PDR were analyzed retrospectively. All the patients were divided into two groups according to different intravitreal tamponade, including C3F8 tamponade group (53 patients with 56 eyes) and silicone oil tamponade group (68 patients with 71 eyes). There was no difference of gender (χ2=0.956), age (t=1.122), duratiion of diabetes (t=0.627), fasting blood glucose (t=1.049), systolic pressure (t=1.056), diastolic pressure (t=0.517), history of hypertension (χ2=0.356), nephropathy (χ2=1.242), preoperative laser photocoagulation (χ2=1.225) and All the patients underwent three port pars plana vitrectomy. The mean follow-up was 2 years ranging from 6 months to 4 years. And then the incidence and onset time of postoperative vitreous hemorrhage and postoperative BCVA of the two groups were compared. ResultsPostoperative vitreous hemorrhage occurred in 14 of 56 eyes (25.00%) in C3F8 tamponade group. The average onset time of postoperative vitreous hemorrhage were (64.64±59.09) days ranging from 7-225 days and mostly were within 30-60 days (35.71%, 5/14). Postoperative vitreous hemorrhage also occurred in 7 of 71 eyes (9.89%) of silicone oil tamponade group after silicone oil removal with an average onset time of (25.29±20.46) days ranging from 3-65 days and were mostly within 15-30 days (42.86%, 3/7). There was a significant difference in the incidence of postoperative vitreous hemorrhage between the two groups (χ2=5.200, P<0.05). BCVA of the two groups was improved significantly after operation (Z=2.472, 3.114; P<0.05). Postoperative BCVA of silicone oil tamponade group was poorer than C3F8 tamponade group (Z=1.968, P<0.05). ConclusionBoth C3F8 and silicone oil tamponade can improve the visual acuity after vitrectomy for PDR. Compared with C3F8, silicone oil tamponade had lower incidence and late onset of postoperative vitreous hemorrhage after vitrectomy for PDR.
ObjectiveTo systematically review the effectiveness and safety of intensive blood pressure lowering in intracerebral hemorrhage (ICH). MethodsRandomised controlled trials (RCTs) and quasi-RCTs about ICH patients receiving intensive blood pressure lowering were searched from PubMed, EMbase, SCIE, The Cochrane Library (Issue 2, 2013), CBM, CNKI, VIP and WanFang Data until March, 2014. Literature was screened according to the exclusion and inclusion criteria by two reviewers independently and meta-analysis was conducted using RevMan 5.2 software after data extraction and quality assessment. ResultsA total of 24 studies were included involving 6 299 patients, of which 10 were RCTs and 14 were quasi-RCTs. The results of meta-analysis showed that intensive blood pressure lowering was superior to guideline-recommended intervention in reducing 24-h hematoma expansion rates (OR=0.36, 95%CI 0.28 to 0.46, P < 0.05), 24-h hematoma expansion volume (MD=-3.71, 95%CI-4.15 to-3.28, P < 0.05) and perihematomal edema volume (MD=-1.09, 95%CI-1.92 to-0.22, P < 0.05). Meanwhile, intensive blood pressure lowering improved 21-d NIHSS score (MD=-3.44, 95%CI-5.02 to-1.87, P < 0.05). But there was no significant difference in mortality and adverse reaction between the two groups. ConclusionCurrent evidence shows that intensive blood pressure lowering could reduce hematoma expansion volume and perihematomal edema volume, which is beneficial to recovery of neurological function, but ICH patients' long-term prognosis needs to be further studied. Due to the limited quantity and quality of the included studies, high quality studies are needed to verify the above conclusion.