Nevin Manimala

Foot (Edinb). 2021 Jun 12;49:101842. doi: 10.1016/j.foot.2021.101842. Online ahead of print.

ABSTRACT

PURPOSE: Gastrocnemius recession has been described in the treatment of gastrocnemius contracture. The aims of this study were: (1) to assess the change in ankle dorsiflexion after isolated medial gastrocnemius recession performed according to L.S. Barouk’s technique; (2) to compare ankle dorsiflexion after isolated medial head with complete proximal gastrocnemius recession.

METHODS: A cadaveric study was performed on 15 lower limb adult specimens. Isolated medial gastrocnemius head recession was initially performed, followed by an additional recession of the lateral gastrocnemius head. Ankle dorsiflexion torque was applied with 2 and 4 kg forces on second metatarsal head. Ankle dorsiflexion was measured with the knee both in extension and at 90° of flexion and values were recorded before surgery (T0), after medial head recession (T1) and after both heads recession (T2). Normality of data was assessed using the Shapiro-Wilk test, then measurements were compared in the three conditions with appropriate statistical tests.

RESULTS: After isolated medial gastrocnemius recession (Δ = T1-T0), ankle dorsiflexion assessed with the knee in extension significantly increased by 5° ± 3 (range, -2 to 10) with a 2-kg torque (p = 0.02) and by 4.5° ± 3 (range, -4 to 10) with a 4-kg torque (p = 0.04). No significant difference was observed with the knee flexed at 90° (p > 0.05 for all measurements). After both gastrocnemius heads recession (Δ = T2-T1), although a further increase in dorsiflexion was noticed, statistical significance was not reached neither with the knee in extension nor at 90° of flexion (p > 0.05 for all measurements).

CONCLUSION: In this study, isolated medial gastrocnemius head recession performed according to LS Barouk’s technique was effective in improving ankle dorsiflexion, whereas the additional release of the lateral head did not produce any significant change.

LEVEL OF EVIDENCE: Level V, cadaveric study.

PMID:34687979 | DOI:10.1016/j.foot.2021.101842

Clin Gastroenterol Hepatol. 2021 Oct 20:S1542-3565(21)01129-0. doi: 10.1016/j.cgh.2021.10.016. Online ahead of print.

ABSTRACT

BACKGROUND AND AIMS: Gastrointestinal cancer risk is influenced by the presence of metabolic syndrome [MetS]. However, previous epidemiological studies lacked full serological biomarker data for the classification of MetS and the interaction of MetS with germline cancer risk variants is unknown.

METHODS: We investigated the associations between MetS and gastrointestinal cancer risk (overall, colorectal, pancreatic, esophageal adenocarcinoma, esophageal squamous cell carcinoma, stomach cardia, stomach non-cardia, hepatocellular carcinoma, and intrahepatic bile duct cancer) in 366,016 UK Biobank participants with comprehensive serum biomarker and genotype data. MetS status was determined by three different definitions at baseline and, in 15,152 participants, at a repeat assessment after a median of 4.3 years of follow-up. Multivariable hazard ratios [HR] and 95% confidence intervals [CI] for cancer outcomes were estimated using Cox proportional hazards models. Analyses stratified by polygenic risk score [PRS] were conducted for colorectal and pancreatic cancers.

RESULTS: During a median follow-up of 7.1 years, 4,238 incident cases of a gastrointestinal cancer occurred. MetS at baseline was associated with higher risk of overall gastrointestinal cancer by any definition (HR 1.21, 95% CI 1.13-1.29, harmonized definition). MetS was associated with increased risks of colorectal cancer, colon cancer, rectal cancer, hepatocellular carcinoma, pancreatic cancer in women, and esophageal adenocarcinoma in men. Associations for colorectal cancer and pancreatic cancer did not differ by PRS strata (P-heterogeneity 0.70 and 0.69, respectively), and 80% of participants with MetS at baseline retained this status at the repeat assessment.

CONCLUSIONS: These findings underscore the importance of maintaining good metabolic health in reducing the burden of gastrointestinal cancers, irrespective of genetic predisposition.

PMID:34687971 | DOI:10.1016/j.cgh.2021.10.016

J Acad Nutr Diet. 2021 Oct 20:S2212-2672(21)01426-X. doi: 10.1016/j.jand.2021.10.019. Online ahead of print.

ABSTRACT

BACKGROUND: Nearly a third of young US children take multivitamin/mineral (MVM) dietary supplements, yet it is unclear how formulations compare to requirements.

OBJECTIVE: Describe the number and amounts of micronutrients contained in MVM for young children and compare suggested amounts on product labels to micronutrient requirements.

DESIGN: Cross sectional.

SETTING: All 288 MVM on the market in the US in NIH’s Dietary Supplement Label Database (DSLD) in 2018 labeled for children 1-<4 years old.

MAIN OUTCOME MEASURES: Number of MVM products and amounts/day of micronutrients in each product suggested on labels compared with requirements represented by age-appropriate Daily Values (DV). Micronutrients of public health concern identified by the Dietary Guidelines for Americans 2015-2020 (DGA 2015) and DGA 2020-2025 (DGA 2020) or those of concern for exceeding the upper tolerable intake levels (UL). Statistical Analyses Number of products and %DV per day provided by each micronutrient in each product.

RESULTS: The 288 MVM contained a mean of 10.1±2.27 vitamins and 4.59± 2.27 minerals. The most common were, in rank order, vitamins C, A, D, E, B-6, B-12, zinc, biotin, pantothenic acid, iodine, and folic acid. For micronutrients denoted by the DGA 2015 and DGA 2020 of public health concern, 56% of the 281 products containing vitamin D, 4% of the 144 with calcium and none of the 60 containing potassium provided at least half of the DV. The UL was exceeded by 49% of 197 products with folic acid, 17% of 283 with vitamin A, and 14% of 264 with zinc. Most MVM contained many of 16 other vitamins and minerals identified in national surveys as already abundant in children’s diets.

CONCLUSIONS: A reexamination of the amounts and types of micronutrients in MVMs may be suggested in order to consider formulations that better fill critical gaps in intakes and avoid excess.

PMID:34687947 | DOI:10.1016/j.jand.2021.10.019

J Minim Invasive Gynecol. 2021 Oct 20:S1553-4650(21)01224-3. doi: 10.1016/j.jmig.2021.10.008. Online ahead of print.

ABSTRACT

STUDY OBJECTIVE: To develop a preoperative risk assessment tool that quantifies the risk of postoperative complications within 30 days of hysterectomy.

DESIGN: Retrospective analysis.

SETTING: Michigan Surgical Quality Collaborative hospitals.

PATIENTS: Women who underwent hysterectomy for gynecologic indications.

INTERVENTIONS: Development of a nomogram to create a clinical risk assessment tool.

MEASUREMENTS AND MAIN RESULTS: Postoperative complications within 30 days were the primary outcome. Bivariate analysis was performed comparing women who did and did not have a complication. The patient registry was randomly divided. A logistic regression model developed and validated from the Collaborative database was externally validated with hysterectomy cases from the National Surgical Quality Improvement Program and a nomogram was developed to create a clinical risk assessment tool. Of the 41,147 included women, the overall postoperative complication rate was 3.98% (n=1,638). Preoperative factors associated with postoperative complications were sepsis (OR 7.98, CI 1.98-32.20); abdominal approach (OR 2.27, CI 1.70-3.05); dependent functional status (OR 2.20, CI 1.34-3.62); bleeding disorder (OR 2.10, CI 1.37-3.21); diabetes mellitus with HbA1c ≥9% (OR 1.93, CI 1.16-3.24); gynecologic cancer (OR 1.86, CI 1.49-2.31); blood transfusion (OR 1.84, CI 1.15-2.96); American Society of Anesthesiologists Physical Status Classification System class ≥3 (OR 1.46, CI 1.24-1.73); government insurance (OR 1.3, CI 1.40-1.90); and Body Mass Index ≥40 (OR 1.25, CI 1.04-1.50). Model discrimination was consistent in the derivation, internal validation, and external validation cohorts (C-statistics 0.68, 0.69, 0.68, respectively).

CONCLUSION: We validated a preoperative clinical risk assessment tool to predict postoperative complications within 30 days of hysterectomy. Modifiable risk factors identified were preoperative blood transfusion, poor glycemic control, and open abdominal surgery.

PMID:34687927 | DOI:10.1016/j.jmig.2021.10.008

J Shoulder Elbow Surg. 2021 Oct 20:S1058-2746(21)00752-7. doi: 10.1016/j.jse.2021.10.002. Online ahead of print.

ABSTRACT

BACKGROUND: The purpose of this study was to compare the preoperative magnetic resonance arthrography (MRA) findings in patients who underwent glenohumeral stabilization with a history of primary instability, recurrent instability or failed prior stabilization.

METHODS: All patients who presented with glenohumeral instability and underwent stabilization under a single surgeon in our institution between 2008 and 2020 were considered for inclusion in this study. The MRA findings of all were recorded. Imaging findings were compared between those with primary instability, recurrent instability, and those with failed prior stabilization. A p-value of p < 0.05 was considered statistically significant.

RESULTS: Overall, 871 patients were included; 814 of whom were male (93.5%) with a mean age of 23.1 years (range 13-55). There were 200 patients with primary instability, 571 patients with recurrent instability, and 100 patients who required revision stabilization surgery, with no significant differences in demographics between the groups. There was a significantly higher amount of glenoid bone loss in those with recurrent instability (43.4%) and failed prior stabilization (56%) than those with primary instability (26.5%), p < 0.0001. Additionally, there was a significantly higher number of Hill-Sachs lesions in those with recurrent instability (70.1%) and failed prior stabilization (89%) than those with primary instability (67.5%), p < 0.0001. There were no significant differences between the groups for articular cartilage damage, GLAD lesions, ALPSA lesions, HAGL lesions or SLAP tears (P>0.05).

CONCLUSION: Patients presenting for stabilization with recurrent instability or following a failed prior stabilization possess higher rates of glenohumeral bone loss when compared to those with primary instability. Therefore, stabilization of primary instability, particularly in high functioning athletes with a view to preventing recurrence may reduce overall progression of glenohumeral bone loss and potential subsequent inferior clinical outcomes.

PMID:34687918 | DOI:10.1016/j.jse.2021.10.002

Ann Vasc Surg. 2021 Oct 20:S0890-5096(21)00747-0. doi: 10.1016/j.avsg.2021.08.039. Online ahead of print.

ABSTRACT

OBJECTIVE: Recent literature and societal recommendations support early revascularization of symptomatic carotid patients over the traditional six-week period. Nonetheless, the timing of these interventions can vary widely among populations. The goal of this study is to identify any factors influencing carotid revascularization during the index hospitalization for patients with symptomatic disease.

METHODS: The Texas Department of State Health Services database was queried to identify all patients >45 years old admitted to non-federal Texas Hospitals between 2009 to 2013 with an admission diagnosis of carotid artery stenosis and either transient ischemic attack (TIA), cerebrovascular accident (CVA), or amaurosis fugax. Diagnoses codes and demographic data were also used to adjust for clinical, social, and demographic factors (including area of residence and treatment). Descriptive statistics and multivariable logistic regression were used to identify significant factors for index admission revascularization.

RESULTS: A total of 29,046 symptomatic patients were identified among the 153,484 patients who had an eligible admission diagnosis. This included 16,244 (55.9%) males and 12,802 (44.1%) females. Only 4,594 (15.8%) patients were revascularized during the index hospitalization. The majority of these patients presented with amaurosis (OR 5.58; 95% CI 4.84-6.44) instead of CVAs (OR 0.48; 95% CI 0.45-0.51) or TIAs (Table 2). Adjusting for hospital volume, insurance coverage, residence, and other clinical factors, rates of index admission carotid intervention remained significantly lower for women (OR 0.85; 95% CI 0.79-0.91), persons categorized as black (OR 0.60; 95% CI 0.53-0.69), and persons categorized as Hispanic (OR 0.77; 95% CI 0.70-0.86).

CONCLUSION: Gender, race and ethnicity appear to correlate with rates of carotid intervention at index hospitalization despite thorough risk adjustment for clinical, social and demographic factors. Efforts should be directed towards reducing these disparities.

PMID:34687890 | DOI:10.1016/j.avsg.2021.08.039

Zhongguo Ying Yong Sheng Li Xue Za Zhi. 2021 Jan;37(1):96-103. doi: 10.12047/j.cjap.0091.2021.111.

ABSTRACT

Objective: Subjects used upper limb (arm dynamometer) and lower limb precision electromagnetic power meter (cycle ergometer) to perform symptom-restricted limit cardiopulmonary exercise testing (CPET). Then we analyzed the clinical value of arm ergometer CPET. Methods: The upper limb and lower limb precision electromagnetic power meters were used to complete the CPET in two different days for 6 normal people and 9 chronic patients. We analyzed CPET data, calculated related core indicators, and compared normal subjects and chronic patients to analyze the similarities and differences between upper and lower extremities and their correlations. Results: ①Compared with 9 patients with chronic diseases, there were significant differences in age ((33.2±12.7) vs (53.6±8.5) years) and diagnosis in 6 normal people. ②The Peak HR ((131.0±19.0) vs (153.0±22.0) bpm,P<0.05) of upper limb CPET of 15 subjects were lower than lower limb CPET, but the difference in blood pressure was not statistically significant (P>0.05). The Peak V_T ((1.3±0.4) vs (1.8±0.4) L) and Peak VE ((51.4±21.1) vs (67.9±22.1) L/min) of lower limb CPET were significantly higher than that of upper limb (all P<0.05), and there was no significant difference in Peak BF When upper limb CPET was used, EX-time ((6.4±0.6) vs (8.5±1.2) min) was shorter than lower limb CPET; Peak Work Rate((73.2±19.6) vs (158.5±40.3) W/min), Peak VO₂ ((1.1±0.4) vs (1.7±0.4) L/min), AT ((0.6±0.2) vs (0.9±0.2) L/min), Peak VO₂/HR ((8.6±2.3) vs (10.9±2.6) ml/beat), OUEP (34.7±4.3 vs 39.8±5.3)were lower, and the Lowest VE/VCO₂(32.6±3.8 vs 28.7±4.9), VE/VCO₂ Slope (33.9±4.3 vs 28.3±6.2)were higher than those of lower limb CPET (all P<0.05). The comparison results of the two subgroups of normal and chronic patients were the same as the holistic comparison results. ③EX-time, Peak HR, Peak BF, Peak VT and Peak VE of upper limb CPET had good correlation with the results of lower limb CPET. Besides, the measured value and percentage of the projected value of Peak Work Rate, the measured value, kilogram weight value of Peak VO₂ and AT, and percentage of the projected value of Peak VO₂, the measured value of Peak VO₂/HR also had good correlation. The measured value of OUEP, the measured value and percentage of the projected value of Lowest VE/VCO₂ and VE/VCO₂ Slope were also the same, when the other indicators had no significant correlation. Conclusion: As a supplement to lower limb CPET, upper limb CPET is highly feasible and safe for holistic functional status assessment. It provides an important supplement to guide the implementation of the holistic plan of individualized precision exercise, which is worthy of our further exploration.

PMID:34672469 | DOI:10.12047/j.cjap.0091.2021.111

Zhongguo Ying Yong Sheng Li Xue Za Zhi. 2021 Jan;37(1):72-78. doi: 10.12047/j.cjap.0090.2021.108.

ABSTRACT

Objective: To evaluate the value of cardiopulmonary exercise testing in diagnosing coronary atherosclerotic heart disease（CHD). Methods: A total of 156 patients with suspected CHD（The patient’s condition is relatively stable, aged 18 to 80 years）were performed for cardiopulmonary exercise testing, ECG exercise test and coronary angiography. Based on the results of coronary angiography, the sensitivity, specificity and diagnostic value of relevant indicators of cardiopulmonary exercise testing (CPET) parameters (Peak VO₂%pred、Peak O₂ pulse%pred、ΔVO₂/ΔWR) in diagnosing CHD were analyzed by statistical methods based on the results of coronary angiography. Results: Useing the best cut-off point of Peak VO₂ ≤69%pred for detecting CHD, the sensitivity was 55.1%, the specificity was 77.0%, and the AUC was 0.698. The sensitivity, specificity and AUC of peak O₂ pulse%pred were 50.7%, 72.4% and 0.58 respectively. ΔVO₂/ΔWR sensitivity in diagnosing CHD was 44.9%, specificity was 87.4%, AUC was 0.647. The sensitivity of peak O₂ pulse%pred and ΔVO₂/ΔWR were much higher than the ECG exercise test, the difference was statistically significant (P<0.01). Conclusion: The sensitivity of some indexes of CPET in diagnosing CHD was better than ECG exercise test, the specificity and diagnostic value of the optimal cut-off point are high. CPET has predictive value for the diagnosis of CHD, it can diagnose CHD early and accurately.

PMID:34672466 | DOI:10.12047/j.cjap.0090.2021.108

Zhongguo Ying Yong Sheng Li Xue Za Zhi. 2021 Jan;37(1):40-44. doi: 10.12047/j.cjap.0078.2021.103.

ABSTRACT

Objective: The objective is to find the characteristics of arterial blood sample waveform in different respiration models. Methods: Six post-operative patients with normal heart function and negative Allen test, were 4 male and 2 female, (59.00±16.64)year, (71.67±0.37)kg, left ventricular ejection fraction(LVEF) (61.33±2.16)%, had been placed the arterial catheterization and central venous catheterization for continuous collecting arterial in 3 different kinds of respiration models: normal breathing, no breathing and deep breathing. We selected two breaths cycles of waveform from each patient for data calculations of magnitudes and time interval. Compare the adjacent highest and lowest values of patients to verify whether there are periodic wave-like signal changes in arterial and venous blood gas in the three breathing states. In addition, statistical t-test analysis was performed on the change amplitude of the periodic wave-like signal of the patient’s arterial and venous blood gas to compare whether there is a difference. Results: The heart beat numbers for drawing blood into pipe were 15-16, and all covered more than 2 breathing cycles. There were significant changes of arterial PaO₂ (i.e. the highest high values compare to the next lowest values, P<0.05) in three different breathing models(normal, no breathing and high breathing), the magnitudes of which were (9.96±5.18)mmHg, (5.33±1.55)mmHg and (13.13±7.55)mmHg, with (8.09±2.43)%, (5.29±2.19)% and (10.40±2.68)% from their mean respectively. PO₂ in venous blood gas did not show wavy changes under normal breathing, 20 s breath holding and high tidal volume ventilation. The amplitudes were (1.63 ± 0.41) mmHg, (1.13 ± 0.41) mmHg and (1.31 ± 0.67) mmHg, which were (3.91 ± 1.22)%, (2.92 ± 1.12)%, (3.33 ± 1.81)%, respectively, which were significantly lower than that of arterial blood gas under the same state, but there was no significant difference between groups. Conclusion: With continuous beat-by-beat arterial blood sampling and ABG analyzing method in three different breathing models, We obtain a clear evidence of the biggest periodic parameters ABG waveform in high breathing models, which followed by normal breathing models, no breathing was the smallest, and the wave variation amplitude of venous oxygen partial pressure was not obvious in the three respiratory states, which implies the oscillatory information of the arterial blood with comes from the gas exchanging in the lung.

PMID:34672461 | DOI:10.12047/j.cjap.0078.2021.103

Isr Med Assoc J. 2021 Oct;23(10):646-650.

ABSTRACT

BACKGROUND: Rheumatoid arthritis (RA) is a chronic inflammatory and destructive joint disease with the presence of autoantibodies, rheumatoid factor (RF), and anti-citrullinated protein antibodies (ACPA). The presence of RF or ACPA predicts RA severity. Data on the influence of ACPA titer on RA course are limited.

OBJECTIVES: To determine the correlation between ACPA titers at the time of RA diagnosis to RA features and severity during 3 years of follow-up.

METHODS: We performed a retrospective study of RA patients treated at our institution during the years 2006-2015 with known ACPA titers at RA diagnosis who completed at least 3 years of follow-up. Patients (N=133) were divided according to ACPA titer: seronegative (< 15 U/ml, n=55), weakly positive (15-49 U/ml, n=18), moderately positive (50-300 U/ml, n=29), and strongly positive (> 300 U/ml, n=31). Patient data, including disease activity score (DAS28), bone erosion on hand and/or foot X-rays, treatments with corticosteroids and disease-modifying-anti-rheumatic drugs (DMARDs), and hospitalizations, were recorded. Chi-square and Mann-Whitney method were used for statistical analysis. P < 0.05 was considered as statistically significant.

RESULTS: Male gender, smoking, and RF positivity correlated with ACPA positivity and higher ACPA titers. There was no correlation between ACPA titer and the variables defined as representing RA severity: higher DAS28, bone erosions, hospitalizations, need for corticosteroids, and conventional and biological DMARDs.

CONCLUSIONS: Titer of ACPA was not identified as a predictive factor for RA severity.

PMID:34672447