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Objective:To investigate the association between split foot and electrophysiology in patients with amyotrophic lateral sclerosis (ALS).Methods:The clinically definite or clinically probable ALS patients hospitalized in the Department of Neurology, the First Medical Center of Chinese People′s Liberation Army General Hospital from April 2021 to December 2022 were prospectively collected. From April 2021 to December 2022, patients who visited the Chinese People′s Liberation Army General Hospital for other reasons without abnormal electrophysiological examination were collected as the control group. The incidence of split leg [the limb whose modified Medical Research Council Muscle Strength Scale (mMRC) score of ankle dorsiflexors was lower than that of ankle plantarflexors] in ALS patients was calculated, and the incidence of split foot (the limb whose mMRC score of hallux dorsiflexors was lower than that of hallux plantarflexors) in ALS patients was calculated. The amplitude of compound muscle action potential (CMAP) of common peroneal nerve and tibial nerve was detected to observe the involvement of motor neurons innervating ankle dorsiflexors and ankle plantarflexors. The characteristics of split leg and split foot in ALS patients were analyzed from the perspective of muscle strength, and the characteristics of split foot in ALS patients were analyzed from the perspective of electrophysiology. Receiver operating characteristic (ROC) curve was used to analyze the sensitivity and specificity of peroneal nerve/tibial nerve CMAP amplitude ratio in distinguishing ALS patients from controls.Results:A total of 101 ALS patients with lower limb involvement and 110 controls with normal lower limb muscle strength were collected. Among the 101 ALS patients with lower limb involvement, strength of ankle plantarflexors was greater than that of ankle dorsiflexors in 35.64% (36/101) patients, strength of ankle dorsiflexors was greater than that of ankle plantarflexors in 5.94% (6/101) patients, and strength of ankle plantarflexors and ankle dorsiflexors was equal in 58.42% (59/101) patients. Strength of hallux dorsiflexors was lower than that of hallux plantarflexors in 53.47% (54/101) patients, strength of hallux dorsiflexors was greater than that of hallux plantarflexors in 1.98% (2/101) patients, and the strength of hallux dorsiflexors and hallux plantarflexors was equal in 44.55% (45/101) patients. The incidence of split leg was negatively correlated with age ( OR=0.25, 95% CI 0.16-0.40, P<0.05), course of disease ( OR=0.52, 95% CI 0.38-0.80 P<0.05) and ALS functional revised scores ( OR=0.29, 95% CI 0.12-0.67, P<0.05). The incidence of split foot was negatively correlated with the onset time of lower limb symptoms ( OR=0.96, 95% CI 0.93-0.99, P<0.05). Compared with the control group, the differences of the decrease of CMAP amplitude in the common peroneal nerve and tibial nerve [the common peroneal nerve (6.45±2.56) mV vs (3.63±1.83) mV, tibial nerve (12.87±4.72) mV vs (9.18±6.22) mV] were statistically significant ( t=-4.65, t=-3.44, both P<0.001) and the differences of the peroneal nerve/tibial nerve CMAP amplitude ratio (0.54±0.24 vs 0.36±0.18) decrease was statistically significant ( t=-4.31, P<0.001) in patients with split foot. ROC curve analysis showed that the area under the ROC curve of CMAP amplitude ratio of common peroneal nerve/tibial nerve in ALS patients with split foot was 0.70, indicating that the accuracy of CMAP amplitude of common peroneal nerve/tibial nerve in distinguishing ALS patients from controls was low. Conclusions:In ALS patients with lower limb involvement, strength of ankle dorsiflexors is weaker than that of ankle plantarflexors, and strength of hallux dorsiflexors is weaker than that of hallux plantarflexors. At the diagnostic level, the CMAP amplitude ratio of common peroneal nerve/tibial nerve in ALS patients with split foot has a lower accuracy in the diagnosis of ALS.
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Objective@#To investigate the feasibility and safety of endoscopic combined simultaneous surgery in the modified prone split-leg position for complex renal calculi with ipsilateral ureteral calculi.@*Methods@#The clinical data of 56 cases patients with simultaneous renal and ureteral stones admitted to the Second Affiliated Hospital of Anhui Medical University from January 2016 to March 2019 were retrospectively analyzed. A retrospective analysis was performed on 56 cases of patients with simultaneous renal and ureteral stones who received surgical treatment between January 2016 and March 2019. According to different surgical methods, 56 cases were divided into the modified prone split-leg position group (observation group) and the traditional pre-lithotomy position followed by prone position group (control group). In observation group, the average age of 11 males and 17 females was (54.1±10.2)years. The mean body mass index was (23.8±2.9) kg/m2. The location of stones were left in 14 cases and right in 14 cases. The average kidney involvement calyces number was 2.4±0.7.The mean kidney stones maximum cross-sectional area was (870.9±157.7)m2. According to the Guy′s classification system, there were 3 cases of grade Ⅰ, 11 case of grade Ⅱ and 14 case of grade Ⅲ in the observation group. The kidney stones S. T.O.N.E scores was 8.7±1.3 and ureteral calculi S. T.O.N.E scores were 13.1± 1.6.In the control group, the average age was (57.0±8.3)years old. The mean body mass index was (24.4±2.9)kg/m2. The average kidney involvement calyces number was 2.1±0.7 and the mean kidney stones maximum cross-sectional area was (808.8±189.6)mm2. To the kidney stones Guy′s classification, there were 5 cases of grade Ⅰ, 15 case of grade Ⅱ, 7 case of grade Ⅲ and 1case of grade Ⅳ in the control group. The kidney stones S. T.O.N.E scores were 8.5±0.6 and the ureteral calculi S. T.O.N.E scores were 12.4±1.7. The operation time, calculus clearance rate, postoperative hospitalization days, reoperation rate and severity of complications of Clavien-Dindo were statistically compared between the two groups.@*Results@#The study found that the average operation time in the observation group was significantly shorter than that in the control group [(77.8±27.3)min vs.(94.4±22.8)min](P<0.05). In the observation group, 23 patients had complete removal of renal and ureteral calculi, and 3 patients need reoperation. While in the control group, 16 patients had complete removal and 10 patients had reoperation. There were significant differences between the two groups (P<0.05). According to the complication severity of Clavien-Dindo, there were 4 cases of grade Ⅰ and 1 case of grade Ⅱ in the observation group, 4 cases of grade Ⅰ, 2 case of grade Ⅱ and 2 case of grade Ⅲ in the control group. There were no serious complications of grade Ⅳ and Ⅴ in both groups (P>0.05). In observation group, one case accepted the DSA embolization therapy due to the severe bleeding. One case accepted the puncture drainage due to the perinephric effusion. There was no difference in average postoperative hospital stay between the two groups [(6.5±1.2)d vs.(7.0±2.1)d, P>0.05].@*Conclusions@#It is safe and feasible to treat complex renal calculi with ipsilateral ureteral calculi by endoscopic combined simultaneous surgery in the modified prone split-leg position. One position can solve many problems simultaneously, which can significantly reduce the operation time, increase the stone free rates, reduce the reoperation rate and improve the effectiveness of the operation.
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Objective To investigate the feasibility and safety of endoscopic combined simultaneous surgery in the modified prone split-leg position for complex renal calculi with ipsilateral ureteral calculi.Methods The clinical data of 56 cases patients with simultaneous renal and ureteral stones admitted to the Second Affiliated Hospital of Anhui Medical University from January 2016 to March 2019 were retrospectively analyzed.A retrospective analysis was performed on 56 cases of patients with simultaneous renal and ureteral stones who received surgical treatment between January 2016 and March 2019.According to different surgical methods,56 cases were divided into the modified prone split-leg position group (observation group)and the traditional pre-lithotomy position followed by prone position group (control group).In observation group,the average age of 11 males and 17 females was (54.1 ± 10.2) years.The mean body mass index was (23.8 ± 2.9) kg/m2.The location of stones were left in 14 cases and right in 14 cases.The average kidney involvement calyces number was 2.4 ± 0.7.The mean kidney stones maximum cross-sectional area was (870.9 ± 157.7) m2.According to the Guy's classification system,there were 3 cases of grade Ⅰ,11 case of grade Ⅱ and 14 case of grade Ⅲ in the observation group.The kidney stones S.T.O.N.E scores was 8.7 ± 1.3 and ureteral calculi S.T.O.N.E scores were 13.1 ± 1.6.In the control group,the average age was (57.0 ± 8.3) years old.The mean body mass index was (24.4 ± 2.9) kg/m2.The average kidney involvement calyces number was 2.1 ± 0.7 and the mean kidney stones maximum cross-sectional area was (808.8 ± 189.6)mm2.To the kidney stones Guy's classification,there were 5 cases of grade Ⅰ,15 case of grade Ⅱ,7 case of grade Ⅲ and 1 case of grade Ⅳ in the control group.The kidney stones S.T.O.N.E scores were 8.5 ±0.6 and the ureteral calculi S.T.O.N.E scores were 12.4 ± 1.7.The operation time,calculus clearance rate,postoperative hospitalization days,reoperation rate and severity of complications of Clavien-Dindo were statistically compared between the two groups.Results The study found that the average operation time in the observation group was significantly shorter than that in the control group [(77.8 ± 27.3) min vs.(94.4 ± 22.8) min] (P ＜ 0.05).In the observation group,23 patients had complete removal of renal and ureteral calculi,and 3 patients need reoperation.While in the control group,16 patients had complete removal and 10 patients had reoperation.There were significant differences between the two groups (P ＜ 0.05).According to the complication severity of Clavien-Dindo,there were 4 cases of grade Ⅰ and 1 case of grade Ⅱ in the observation group,4 cases of grade Ⅰ,2 case of grade Ⅱ and 2 case of grade Ⅲ in the control group.There were no serious complications of grade Ⅳ and Ⅴ in both groups (P ＞0.05).In observation group,one case accepted the DSA embolization therapy due to the severe bleeding.One case accepted the puncture drainage due to the perinephric effusion.There was no difference in average postoperative hospital stay between the two groups [(6.5 ± 1.2) d vs.(7.0 ± 2.1) d,P ＞ 0.05].Conclusions It is safe and feasible to treat complex renal calculi with ipsilateral ureteral calculi by endoscopic combined simultaneous surgery in the modified prone split-leg position.One position can solve many problems simultaneously,which can significantly reduce the operation time,increase the stone free rates,reduce the reoperation rate and improve the effectiveness of the operation.