Objective To investigate the effectiveness of portable bracket of lower limb in the reconstruction of anterior cruciate l igament (ACL) by the long fibular muscle tendon under arthroscopy. Methods Between March 2008 and September 2010, 22 patients with ACL injury were treated. The limb position was maintained by portable bracket of lower limb and ACL was reconstructed with the long fibular muscle tendon under arthroscopy. There were 15 males and 7 females with an average age of 33.8 years (range, 19-64 years). The causes of ACL injury were traffic accident injury in 14 cases, sport trauma in 5 cases, and fall ing injury in 3 cases. The locations were the left knee in 10 cases and the right knee in12 cases, including 12 fresh injuries and 10 old injuries. Of 22 patients, 17 had positive anterior drawer test, 19 had positive pivot shift test, and 20 had positive Lachman test. According to International Knee Documentation Committee (IKDC) criteria, there were 6 abnormal and 16 severely abnormal. The subjective IKDC score was 57.64 ± 6.11. The Lysholm score was 55.45 ± 4.37. Results All incisions healed by first intention, and no complication was found. All patients were followed up 9-38 months (mean, 15 months). At last follow-up, the flexion of the knee ranged from 120 to 135° (mean, 127°). One patient had positive anterior drawer test, 1 patient had positive pivot shift test, and 2 patients had positive Lachman test. No ligament loosening and breakage occurred. According to the IKDC criteria, 10 patients rated as normal, 11 patients as nearly normal, and 1 patient as abnormal. The subjective IKDC score was 90.44 ± 6.11, showing significant difference when compared with preoperative one (t=4.653, P=0.021). The Lysholm score was 90.12 ± 5.78, showing significant difference when compared with preoperative one (t=4.231, P=0.028). Conclusion Portable bracket of lower limb in the reconstruction of ACL has the advantages of saving manpower and easy operation. The long fibular muscle tendon is enough long and b to reconstruct the ACL, which can increase the contact surface between the tendon and bone and is beneficial to tendon-bone heal ing.
Objective To understand the demands on portable medicine kit of rural residents in well-off township hospitals, and to provide the basis for scientifically designing portable medicine kit for rural residents. Methods The methods of combining simple random sampling and cluster sampling were used to investigate and analyze the demands on portable medicine kit for 162 households from three well-off township hospitals in Shanghai, Zhejiang, and Sichuan province, respectively. Results The demand rate of 162 rural households on portable medicine kit was 75.3% (122/162). The main drugs that demanders expected in the portable medicine kit were cold medicine (86.1%), wound paste (82.0%), cooling oil (61.5%), essential balm (54.9%) and antihypertensive (34.4%); and the main medical devices that demanders expected were thermometer (82%), cotton swab (73%) and sphygmomanometer (32.8%). The sizes of portable medicine kit that demanders expected were 23.7±8.5 cm in length, 17.1±6.4 cm in width, and 14.1±6.5 cm in height. The main function characteristics of portable medicine kit that demanders expected were applicability (74.6%), safety (60.7%), light weight (68.0%), economics (60.7%), and waterproof (46.7%). A total of 72.1% of demanders expected the price of less than 15 yuan, and 91.8% expected kit made of hard materials as plastic as the first choice. Conclusion The demand rate of rural residents on portable medicine kit is higher in well-off township hospital. The design and production of portable medicine kit should fully meet the demands of rural residents. Only when sufficiant respect for the market demand is paid, can the promotion and application of portable kits will be ensured.
Objective To investigate the physiological effects of different oxygen injection site on ventilatory status and oxygenation during noninvasive positive pressure ventilation ( NPPV) with portable noninvasive ventilators. Methods A prospective crossover randomized study was performed. Oxygen injection site was randomized into the outlet of the ventilator, the connection site between mask and circuit, and the mask under the condition of leak port immobilized in the mask. Oxygen flow was retained in the baseline level at the initial 5 to 10 minutes, and adjusted to obtain arterial oxygen saturation measured by pulse oximetry ( SpO2 ) ranging from 90% to 95% after SpO2 remains stable. SpO2 at the initial 5 to 10 minutes, oxygen flow, ventilatory status, oxygenation, hemodynamics and dyspnea indexes at0. 5 hour, 1 hour, and 2 hours of NPPV were compared between different oxygen injection sites. Results 10 patients were recruited into the study. Under the condition of the same oxygen flow, SpO2 with oxygen injection site in the outlet of the ventilator was significantly higher than that with oxygen injection site in the connection site between mask and circuit [ ( 98.9 ±0.9) % vs. ( 96.9 ±1.1) % , P =0. 003] , whereas SpO2 with oxygen injection site in the connection site between mask and circuit was significantly higher than that with oxygen injection site in the mask [ ( 96.9 ±1.1) % vs. ( 94.1 ±1.6) %, P = 0.000] . Oxygen flow with oxygen injection site in the mask was statistically higher than that with oxygen injection site at other sites ( P lt; 0.05) . Arterial oxygen tension/ oxygen flow with oxygen injection site in the outlet of the ventilator was significantly higher than that with oxygen injection site in the connection site between mask and circuit ( 67.9 ±31.1 vs. 37.0 ±15.0, P =0.007) , and than that with oxygen injection site in the mask ( 67.9 ± 31.1 vs. 25.0 ±9.1, P = 0.000) . pH, arterial carbon dioxide tension, hemodynamics and dyspnea indexes were not significantly different between different oxygen injection sites ( P gt; 0.05) .Conclusions When portable noninvasive ventilator was applied during NPPV, oxygen injection site significantly affects improvement of oxygenation, and shows a trend for affecting ventilatory status and work of breathing. When the leak port was immobilized in the mask, the nearer oxygen injection site approaches the outlet of the ventilator, the more easily oxygenation is improved and the lower oxygen flow is demanded.
ObjectiveTo explore the value of portable ultrasound in assessing peripheral vein thrombosis of the injured in Lushan earthquake on April 20, 2013. MethodsFrom April 20th to May 5th in 2013, 321 earthquake victims were admitted into our hospital, and 203 fractured patients of them accepted peripheral venous two-dimensional and color doppler ultrasound examination beside the bed every three days. ResultsSixty-three patients (82 locations) suffered from venous thrombosis in the 203 earthquake victims, and the rate was 31.03% (63/203). Among them, one suffered from iliac vein thrombosis; 53 patients (71 limbs) were attacked by lower limb venous thrombosis; 9 patients (10 limbs) suffered from upper limb venous thrombosis. The time was from 2 to 15 days after trauma when the victims were diagnosed to have thrombus at the first time, averaging (6.1±3.8) days. On admission day, 45 victims were diagnosed with peripheral vein thrombosis. Among them, 19 patients increased the scope of thrombus after admission in hospital, while 26 victims reduced the scope. Eighteen victims suffered from newly developed peripheral venous thrombus after admission in hospital. None of the hospitalized patients died of pulmonary embolism. ConclusionsThe victims injured in the earthquake have a high incidence of peripheral vein thrombosis, and the calf is the main site of the disease. After trauma, peripheral venous thrombosis occurs within a short time. Bedside portable ultrasound is the first choice for peripheral vein thrombosis in the earthquake victims.
Portable electrocardiogram monitor is an important equipment in the clinical diagnosis of cardiovascular diseases due to its portable, real-time features. It has a broad application and development prospects in China. In the present review, previous researches on the portable electrocardiogram monitors have been arranged, analyzed and summarized. According to the characteristics of the electrocardiogram (ECG), this paper discusses the ergonomic design of the portable electrocardiogram monitor, including hardware and software. The circuit components and software modules were parsed from the ECG features and system functions. Finally, the development trend and reference are provided for the portable electrocardiogram monitors and for the subsequent research and product design.
The development of muscle strength evaluating system based on Android system was developed in this research. The system consists of a lower unit and an intelligent mobile terminal. The pressure sensor of the lower unit was used to collect muscle strength parameters. And the parameters were sent to the Android device through the wireless Bluetooth serial port. Then the Android device would send the parameters to the doctor monitored platform through the Internet. The system realized analyzing the muscle strength parameters and real-time displaying them. After it ran on the Android mobile phones, it showed an effective result which proved that the system combined with mobile platform could make more convenient for the patients to assess their own muscle strength. It also provided reliable data references for doctors to know the patients' rehabilitation condition and to make the next rehabilitation plan.
Objective To discuss the application value in increasing the frequency of monitoring and ensuring the safety of anticoagulation therapy in patient self-monitoring (PST) and self-management (PSM) of portable coagulometer. Method This non-randomized prospective controlled study was conducted in 100 patients receiving oral warfarin anticoagulation therapy after heart valve replacement and met the inclusion criteria in our hospital between March 2013 and April 2014 year. All the patients were divided into three groups including an outpatient follow-up group(outpatient group), a self-monitoring group and a self-management group. Meanwhile, the patients in the outpatient group visited professional institutions, performed international normalized ratio (INR) testing with central lab and adjusted the dosage of orally administered warfarin by the doctors. And the other two groups performed INR testing with CoaguChek XS portable coagulometer by themselves, and the patients in the self-management group performed management by themselves. The follow-up time was 6 months. The dates of time in therapeutic range (TTR), fraction of time in therapeutic range (FTTR) and anticoagulation complications in the three groups were analyzed and compared. Results There was no significant difference in the INR results obtained from the follow-up time among the three groups (P=0.845) . TTR value of INR of the outpatient group, the self-monitoring group, and the self-management group was 45.9% (4368.0 days/9517.0 days), 61.2% (6057.0 days/9897.0 days), and 65.4% (2833.8 days/4333.0 days), respectively with a statistical difference among the three groups (P<0.001) . FTTR value of INR obtained from the outpatient group, the self-monitoring group, and the self-management group was 48.3% (99 times/205 times), 60.7% (164 times/270 times), and 64.9% (100 times/154 times) respectively. There was a statistical difference in the FTTR between the outpatient group and the self-monitoring group (P=0.007) , and also between the outpatient group and the self-monitoring group (P=0.002) . But there was no statistical difference between the self-monitoring group and the self-management group (P=0.392) . There were not any major bleeding and thrombosis complications in all study. And there was no statistical difference in the total complications, thrombosis, and bleeding complications rates between the outpatient group and the self-monitoring group, and also between the outpatient group and the self-management group (P>0.05) . Conclusions The patients receiving oral anticoagulation after heart valve replacement or their care providers were able to perform PST and PSM. The use of portable coagulometer for self-monitoring and self-management can increase the frequency of anticoagulation monitoring and achieve better INR target value control. PST and PSM could achieve higher quality of anticoagulation management and life and without increasing the risk of oral anticoagulation than the traditional monitoring method. The monitoring frequency of once a month is reasonable for the patients receiving oral anticoagulation more than half a year after heart valve replacement.