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Nevin Manimala Statistics

Capturing daily-life executive impairments in adults: Does the choice of neuropsychological tests matter?

Appl Neuropsychol Adult. 2022 Aug 18:1-11. doi: 10.1080/23279095.2022.2109970. Online ahead of print.

ABSTRACT

OBJECTIVE: Standardized executive functioning (EF) measures do not reliably capture EF-related difficulties reported in daily life. We aim to determine if an ecologically relevant neuropsychological battery is more strongly associated with self-reported everyday EF impairments than classically used tests.

METHOD: Fifty-nine adults aged 18-49 self-rated their EF abilities using the Barkley Deficits in EF Scale (BDEFS) and were randomly assigned to complete either a test battery composed of EF measures with hypothesized ecological relevance (Six Elements, Zoo Map, Hayling Sentence Completion, Iowa Gambling, and Auditory Startle Tasks) or one composed of traditional EF tasks (Card Sorting, Trail Making, Color-Word Interference, and Verbal Fluency). Associations were examined using linear regression.

RESULTS: There were no strong associations between BDEFS subscales and performance on either test battery. Only the regression model predicting Emotional Regulation from ecological tasks was significant. Iowa Gambling Task performance and corrugator muscle contraction in the Auditory Startle Task individually contributed significantly to the model, with small and moderate effect sizes respectively.

CONCLUSION: Results align with evidence that self-reported EF difficulties are not adequately captured by formal neuropsychological measures, even for performance-based measures which directly tap everyday constructs. Findings are interpreted cautiously in the context of a small, high-functioning sample.

PMID:35979845 | DOI:10.1080/23279095.2022.2109970

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Obstetric complications and cognition in schizophrenia: a systematic review and meta-analysis

Psychol Med. 2022 Aug 18:1-11. doi: 10.1017/S0033291722002409. Online ahead of print.

ABSTRACT

BACKGROUND: Schizophrenia (SZ) is a complex brain disorder linked to cognitive and neurostructural abnormalities that involves genetic and environmental factors with obstetric complications (OCs) at birth conferring a high risk for the disease. Indeed, current research in the general population describes the deleterious effect of OCs on cognitive performance in adulthood. With this rationale, we aim to review the relationship between OCs and cognition in SZ and related psychotic disorders.

METHODS: A systematic review and meta-analysis describing cognitive function and OCs in patients with SZ and related disorders were conducted. PubMed, EmBase, SCOPUS, and the Cochrane Library were systematically searched to identify eligible studies up to January 2022. We calculated the effect sizes (Hedges’ g) of cognitive domains within each study and quantified the proportion of between-study variability using the I2 statistic. Homogeneity was assessed using the Q-statistic (X2). The study was registered on PROSPERO (CRD42018094238).

RESULTS: A total of 4124 studies were retrieved, with 10 studies meeting inclusion criteria for the systematic review and eight for meta-analysis. SZ subjects with OCs showed poor verbal memory [Hedges’ g = -0.89 (95% CI -1.41 to -0.37), p < 0.001] and working memory performance [Hedges’ g = -1.47 (95% CI -2.89 to -0.06), p = 0.01] in a random-effect model compared to those without OCs.

CONCLUSIONS: OCs appear to have a moderate impact on specific cognitive such as working memory and verbal memory. Our findings suggest that OCs are associated with brain development and might underlie the cognitive abnormalities described at onset of psychosis.

PMID:35979824 | DOI:10.1017/S0033291722002409

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Impact of genetic deletion of MrgD or Mas receptors in depressive-like behavior in mice

Acta Neuropsychiatr. 2022 Aug 18:1-24. doi: 10.1017/neu.2022.20. Online ahead of print.

ABSTRACT

OBJECTIVES: To evaluate the impact of genetic deletion of receptors of the counterregulatory arms of the renin-angiotensin system in depressive-like behaviors.

METHODS: 8-12 weeks-old male mice wild-type (WT, C57BL/6J) and mice with genetic deletion of MrgD (MrgD KO) or Mas receptors (Mas KO) were subjected to the Forced Swim Test (FST) and the Tail Suspension Test (TST). Brain-derived neurotrophic factor (BDNF) levels were measured by enzyme-linked immunosorbent assay (ELISA). Blockade of Mas was performed by acute intracerebroventricular (icv) injection of its selective antagonist, A779.

RESULTS: No statistical difference in immobility time was observed between MrgD KO and WT male animals subjected to FST and TST. However, acute icv injection of A779 significantly increased the immobility time of MrgD KO male mice subjected to FST and TST, suggesting the involvement of Mas in preventing depression-like behavior. Indeed, Mas KO male animals showed increased immobility time in FST and TST, evidencing a depressive-like behavior in these animals, in addition to a reduction in BDNF levels in the prefrontal cortex and hippocampus. No changes in BDNF levels were observed in MrgD KO male animals.

CONCLUSION: Our data showed that Mas plays an important role in the neurobiology of depression probably by modulating BDNF expression. On the contrary, lack of MrgD did not alter depressive-like behavior, which was supported by the lack of alterations in BDNF levels.

PMID:35979816 | DOI:10.1017/neu.2022.20

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Incisional hernia following colorectal cancer surgery according to suture technique: Hughes Abdominal Repair Randomized Trial (HART)

Br J Surg. 2022 Aug 8:znac198. doi: 10.1093/bjs/znac198. Online ahead of print.

ABSTRACT

BACKGROUND: Incisional hernias cause morbidity and may require further surgery. HART (Hughes Abdominal Repair Trial) assessed the effect of an alternative suture method on the incidence of incisional hernia following colorectal cancer surgery.

METHODS: A pragmatic multicentre single-blind RCT allocated patients undergoing midline incision for colorectal cancer to either Hughes closure (double far-near-near-far sutures of 1 nylon suture at 2-cm intervals along the fascia combined with conventional mass closure) or the surgeon’s standard closure. The primary outcome was the incidence of incisional hernia at 1 year assessed by clinical examination. An intention-to-treat analysis was performed.

RESULTS: Between August 2014 and February 2018, 802 patients were randomized to either Hughes closure (401) or the standard mass closure group (401). At 1 year after surgery, 672 patients (83.7 per cent) were included in the primary outcome analysis; 50 of 339 patients (14.8 per cent) in the Hughes group and 57 of 333 (17.1 per cent) in the standard closure group had incisional hernia (OR 0.84, 95 per cent c.i. 0.55 to 1.27; P = 0.402). At 2 years, 78 patients (28.7 per cent) in the Hughes repair group and 84 (31.8 per cent) in the standard closure group had incisional hernia (OR 0.86, 0.59 to 1.25; P = 0.429). Adverse events were similar in the two groups, apart from the rate of surgical-site infection, which was higher in the Hughes group (13.2 versus 7.7 per cent; OR 1.82, 1.14 to 2.91; P = 0.011).

CONCLUSION: The incidence of incisional hernia after colorectal cancer surgery is high. There was no statistical difference in incidence between Hughes closure and mass closure at 1 or 2 years.

REGISTRATION NUMBER: ISRCTN25616490 (http://www.controlled-trials.com).

PMID:35979802 | DOI:10.1093/bjs/znac198

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Effects of short-segment pedicle screw internal fixation surgery combined with hyperbaric oxygen treatment for acute spinal injury on the morphology and function of the spine

Zhongguo Gu Shang. 2022 Aug 25;35(8):785-9. doi: 10.12200/j.issn.1003-0034.2022.08.016.

ABSTRACT

OBJECTIVE: To explore effect of short-segment pedicle screw internal fixation combined with hyperbaric oxygen in treating acute spinal fractures and its influence on recovery of spinal nerve function.

METHODS: A total of 96 patients with acute spinal fracture admitted from February 2017 to March 2020 were divided into combined group and control group, with 48 cases in each group. Both groups were treated with short-segment pedicle screw internal fixation. The combined group was given hyperbaric oxygen after surgery. The operation time, surgical blood loss, incision length and other general operation conditions between two groups were recorded. The differences in spinal morphology and function, Ameraican Spinal Injury Assiciation(ASIA) neurological function grade, serum inflammatory factors and ability of daily living activities were observed before and after surgery.

RESULTS: There was no significant difference in operation time, surgical blood loss, and incision length between combined group and control group(P>0.05). There were no significant differences in anterior height ratio and Cobb angle between two groups before surgery, 1 week and 6 months after surgery(P>0.05). The height ratio of anterior margin of the injured spine was significantly improved in both groups at 1 week and 6 months after surgery compared with preoperative period (P<0.05), and Cobb angle was significantly reduced in both groups compared with preoperative period (P<0.05). There was no statistically significant difference in serum interleukin-6(IL-6), interleukin-8(IL-8), and tumor necrosis factor-α(TNF-α) levels between two groups at 1 d after surgery(P>0.05);the serum IL-6, IL-8, and TNF-α levels of combined group were lower than those of control group at 1 week after surgery (P<0.05). At 6 months after surgery, ASIA neurological function grade of combined group was C grade in 2 cases, D grade in 23 cases, E grade in 22 cases. In control group, 7 cases was grade C, 26 cases was grade D, 13 cases was grade E, and the difference between two groups was statistically significant(P<0.05). The Barthel score of combined group was higher than that of control group at 1 month and 3 months after surgery, and the difference was statistically significant (P<0.05);at 6 months after surgery, there was no significant difference in Barthel score between two groups(P>0.05).

CONCLUSION: Short-segment pedicle screw internal fixation combined with hyperbaric oxygen for the treatment of acute spinal fractures is beneficial to the recovery of spinal nerve function after surgery, and has a certain effect on the early improvement of the patients’ activities of daily living.

PMID:35979775 | DOI:10.12200/j.issn.1003-0034.2022.08.016

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Clinical application of acromion radiological classification in diagnosis and treatment of rotator cuff injury

Zhongguo Gu Shang. 2022 Aug 25;35(8):757-62. doi: 10.12200/j.issn.1003-0034.2022.08.011.

ABSTRACT

OBJECTIVE: To develop a new classification of acromion based on the subacromial impingement theory and the Rockwood tilt view. And explore the application value of the new classification in the diagnosis and treatment of rotator cuff tear.

METHODS: The clinical data of 101 patients underwent shoulder arthroscopic surgery for impingement syndrome or rotator cuff tear from January to December 2017 were retrospectively analyzed. There were 34 males and 67 females, aged from 34 to 76 years with an average of (56.31±9.63) years old, course of disease from 2 to 12 months with average of 6 months. Preoperative radiographs of the routine anteroposterior view, Rockwood tilt view and the supraspinatus outlet view were obtained. Based on the subacromial impingement theory and Rockwood radiographs, the morphology of the acromion can be divided into three types:typeⅠ(flat type), typeⅡ(bump type), and type Ⅲ (impingement type). Two observers classified 101 shoulder Rockwood radiographs according to the new classification method and the supraspinatus Outlet radiographs according to the traditional acromial morphological classification method. Supraspinatus tendon injuries were classified into no tear, partial-thickness tear, and full-thickness tear according to the arthroscopic findings. Concordance test (Kappa value) between the inter-observer and intra-observer was carried out for the new classification method and the traditional classification method respectively. The rank sum test was used to compare the mean acromiohumeral distance(AHD) of the three acromion forms in the new acromion classification method. Spearman rank correlation test and Gamma method were used to analyze the correlation between the new acromion classification method and the degree of supraspinatus tendon tear.

RESULTS: The inter-observer consistency analysis of the new classification system was significantly better than that of the traditional classification (0.827 vs 0.278), the intra-observer consistency analysis of the new classification system were also significantly better than that of the traditional classification (0.921 vs 0.448, 0.890 vs 0.539). There was no statistical significance in the AHD among three types of the new classification(H=2.186, P>0.05). In all 101 patients, the highest proportion of impingement type acromion was 45.5% (46 cases), followed by bump type acromion was 36.6% (37 cases), and flat type acromion was 17.8% (18 cases). The incidence of supraspinatus tendon tear in the patients with impingement type acromion was significantly higher than that of the other two types of acromion, there was a spearman rank correlation between the new acromion type and the degree of the supraspinatus tendon tear(rs=0.719, P<0.001).

CONCLUSION: Rockwood radiographs of the shoulder can well display the anterolateral osteophytes of the acromion. The new acromion classification method based on Rockwood radiographs has high reliability and good reproducibility, in which impingement type of acromion is closely related to supraspinatus tendon tear. Compared with the traditional classification and AHD, the new classification method has more diagnostic value than for rotator cuff injury.

PMID:35979770 | DOI:10.12200/j.issn.1003-0034.2022.08.011

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Clinical observation on correction of abnormal cervical sagittal parameters by cervical pulling method guided by cervical motion segment extension

Zhongguo Gu Shang. 2022 Aug 25;35(8):747-51. doi: 10.12200/j.issn.1003-0034.2022.08.009.

ABSTRACT

OBJECTIVE: To observe the radiological change and curative effect of cervical spondylosis treated with cervical vertebra pulling therapy in young people.

METHODS: A total of 65 patients(shedding in 5 patients and final inclusion in 60 patients) with cervical spondylosis who were treated from January 2018 to September 2019 were randomly divided into treatment group and control group according to the digital table method. There were 30 patients in treatment group, including 14 males and 18 females, aged from 20 to 44 years old with an average of(29.83±6.99) years, who were treated with cervical vertebra pulling therapy(once a week, 4 times in total). The control group consisted of 30 cases, 12 males and 18 females, aged from 18 to 43 years old with an average of (31.77±5.93) years, who received sitting traction therapy(once a week, 4 times in total). The changes of C2-C7 Cobb angle, arc-chord distance and T1 slope (T1S) in two groups were observed before treatment and 1 month after treatment, for intra-group and inter-group comparison;and the changes of numerical rating scale(NRS) in two groups were observed before treatment and 1, 3 months after treatment, for intra-group and inter-group comparison.

RESULTS: Sixty patients were followed up for (3.2±0.3) months. There were no significant differences in NRS, C2-C7 Cobb angle, arc-chord distance and T1S between two groups before treatment (P>0.05). One month after treatment, the NRS, C2-C7 Cobb angle, arc-chord distance and T1S were(1.67±0.76) scores, (16.55±6.01)°, (10.95±4.04)mm, (18.95±4.19)° in treatment group and(1.40±0.86) scores, (10.23±5.94) °, (6.11±4.17) mm, (13.34±4.25)° in control group respectively. C2-C7 Cobb angle, arc-chord distance and T1S in treatment group were better than those in control group (P<0.05); there was no significant difference in NRS between two groups (P>0.05). Compared with before treatment, there were statistically significant differences in C2-C7 Cobb angle, arc-chord distance and T1S in treatment group(P<0.05), but no statistically significant differences in control group(P>0.05). Three months after operation, NRS of treatment group was (1.60±0.62) scores and that of control group was (4.17±0.70) scores. The treatment group was better than the control group(P<0.05). The scores of treatment group after treatment were lower than those before treatment(P<0.05), and there was no significant difference in control group before and after treatment(P>0.05).

CONCLUSION: Cervical vertebra pulling method and cervical vertebra sitting traction can relieve the pain symptoms of patients with cervical spondylosis, but the effect of cervical vertebra pulling method is more durable;cervical vertebra pulling method can correct abnormal cervical sagittal parameters.

PMID:35979768 | DOI:10.12200/j.issn.1003-0034.2022.08.009

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Short term clinical observation of cervical anterior Hybrid surgery

Zhongguo Gu Shang. 2022 Aug 25;35(8):740-6. doi: 10.12200/j.issn.1003-0034.2022.08.008.

ABSTRACT

OBJECTIVE: To investigate the short-term clinical effect of the cervical anterior Hybrid surgery in the treatment of two-segment and three-segment cervical spondylosis.

METHODS: From January 2018 to January 2019, 108 patients who were performed anterior Hybrid surgery with cervical degenerative diseases were collected. The patients were divided into a two-segment group with 52 patients and a three-segment group with 56 patients according to surgical segments. In two-segment group, there were 24 males and 28 females, aged from 35 to 67 years old with an average of(45.94±14.67) years old. In three-segment group, there were 23 males and 33 females, aged from 32 to 65 years old with an average of (47.54±15.34) years old. The outcome indicators of the two groups were compared. Clinical indicators:neck disability index(NDI) was used to evaluate daily life ability, Japanese Orthopedic Association(JOA) score was used to evaluate neurological function improvement, visual analogue scale(VAS) was used to evaluate pain intensity, and general clinical results were graded according to Odom’s score. Cervical range of motion (ROM), fusion and complications were measured by X-ray, CT and MRI.

RESULTS: All operations were successfully completed and all patients were followed up for more than 12 months. The operation time of two-segment group and three-segment group were 95 to 180 min with an average of(152.30±44.74) min and 110 to 210 min with an average of (165.18±45.86) mins, the blood loss were 20 to 100 ml with an average of (32.88±8.75) ml and 20 to 150 ml with an average of(34.64±10.63) ml respectively which has no statistical differences between the two groups (P>0.05). Compared with those before surgery, NDI, JOA, VAS and Odom’s scores between two groups were significantly improved at 12 months after operation(P<0.05). However, there was no significant difference in the NDI, JOA and Odom’s scores between two groups (P>0.05), and VAS in three-segment group was higher than that in two-segment group. There was no significant difference in C3-C7 cervical mobility between two groups. Surgical incisions healed smoothly in all patients without complication such as spinal cord injury and cerebrospinal fluid leakage. The bone fusion of the two groups were 43 cases (82.69%) and 45 cases(80.35%) respectively. In two-segment group, there were 2 cases of adjacent segmental hyperosteogeny, and there were 3 cases of adjacent segmental hyperosteogeny and 1 case of adjacent posterior longitudinal ligament ossification in the three-segment group. In addition, in three-segment group, there was 1 case of looseness of implants with no obvious clinical symptoms.

CONCLUSION: The anterior Hybrid surgery in treating multi-level cervical spondylosis could not only improve clinical symptoms of patients but also preserve mobility. Meanwhile, the efficacy and safety of Hybrid surgery in different multi-level cervical disc diseases are confirmed, proving its value in clinical practice.

PMID:35979767 | DOI:10.12200/j.issn.1003-0034.2022.08.008

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Analysis of the causes of residual back pain in the early and late stages after percutaneous vertebral augmentation

Zhongguo Gu Shang. 2022 Aug 25;35(8):724-31. doi: 10.12200/j.issn.1003-0034.2022.08.005.

ABSTRACT

OBJECTIVE: To explore the influencing factors of the residual back pain in patient with osteoporotic vertebral compression fractures(OVCFs) in the early and late stages after percutaneous vertebral augmentation(PVA), and analyze the correlation between these factors and the residual back pain after PVA.

METHODS: From March 2018 to December 2019, 312 patients with OVCFs who treated with PVA were collected. According to the inclusion and exclusion criteria, a total of 240 patients were included in this retrospective study. There were 59 males and 181 females, aged from 50 to 95 years old with an average of (76.11±10.72) years old, and 50 cases of fractures located in the thoracic region (T5-T10), 159 cases in the thoracolumbar region (T11-L2), and 31 cases in the lumbar region (L3 and below). The first day after PVA was regarded as the early postoperative period, and the seventh day was regarded as the late postoperative period. According to the visual analogue scale (VAS), the patients were divided into 4 groups:early postoperative pain relief group(group A, VAS≤4 scores), there were 121 patients, including 29 males and 92 females, aged from 50 to 90 years with an average of (75.71±11.00) years;early postoperative pain relief was not an obvious group (group B, VAS >4 scores), there were 119 patients, including 30 males and 89 females, aged from 53 to 95 years with an average of (76.51±10.46) years; late postoperative pain relief group (group C, VAS≤ 4 scores), there were 172 patients, including 42 males and 130 females, aged from 50 to 95 years with an average of (76.20±10.68) years; late postoperative pain relief was not obvious group (group D, VAS>4 scores), there were 68 patients, including 17 males and 51 females, aged from 53 to 94 years old with an average of (75.88±10.91) years old. The age, gender, bone mineral density(BMD), injured vertebral segment, preoperative thoracolumbar fascial condition, surgical methods, single or bilateral puncture, the amount of bone cement injection, anterior vertebral height recovery rate and central vertebral height recovery rate in the 4 groups were analyzed by univariate analysis. The statistically significant factors were put into a Logistic regression to analyze the correlation between these factors and residual back pain after PVA.

RESULTS: Univariate analysis showed that the residual back pain in the early stage after PVA was correlated with BMD, preoperative thoracolumbar fascial injury, single or bilateral puncture, the amount of bone cement injection, anterior vertebral height recovery rate and central vertebral height recovery rate(P<0.05). The residual back pain in the late postoperative period was related to BMD, injured vertebral segment, surgical methods, the amount of bone cement injection, anterior vertebral height recovery rate and central vertebral height recovery rate(P<0.05). Multivariate Logistic regression analysis showed that thoracolumbar fascial injury(OR=4.938, P=0.001), single or bilateral puncture(OR=5.073, P=0.002) were positively correlated with the residual back pain in the early stage after PVA(B>0), which were risk factors;the BMD (OR=0.211, P=0.000) and anterior vertebral height recovery rate (OR=0.866, P=0.001) were negatively correlated with the residual back pain in the early stage after PVA(B<0), which were protective factors. In the late stage after PVA, the BMD(OR=0.448, P=0.003), the amount of bone cement injection (OR=0.648, P=0.004) and anterior vertebral height recovery rate (OR=0.820, P=0.000) were negatively correlated with residual back pain(B<0), which were protective factors.

CONCLUSION: The decrease of BMD, injury of the thoracolumbar fascia, single or bilateral puncture, poor recovery of anterior vertebral height and insufficient injection of bone cement are closely related to the occurrence of residual back pain after PVA, which affect the relief of residual back pain in the early and late postoperative periods.

PMID:35979764 | DOI:10.12200/j.issn.1003-0034.2022.08.005

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Risk factors of adjacent vertebral refracture after percutaneous vertebroplasty for osteoporotic vertebral compression fractures in super-old patients

Zhongguo Gu Shang. 2022 Aug 25;35(8):710-4. doi: 10.12200/j.issn.1003-0034.2022.08.002.

ABSTRACT

OBJECTIVE: To analyze the risk factors for refracture of adjacent vertebrae after percutaneous vertebroplasty (PVP) in super-old patients with osteoporotic vertebral compression fractures(OVCFs).

METHODS: A retrospective analysis was performed on 40 patients(age≥90 years) with OVCFs who underwent PVP between June 2012 and June 2019. There were 7 males and 33 females, age from 90 to 101 years old with an average of (94.6±1.6) years. Patients were divided into two groups according to whether adjacent vertebral refracture occurred after PVP. Among them, 20 patients occurred refracture after PVP (refracture group) and 20 patients did not occur it(control group). The general information, radiological data and pelvic parameters of the two groups were collected. The items included age, gender, body mass index (BMI), fracture site and bone mineral density(BMD) T-value, fracture to operation time, compression degree of injured vertebra, recovery degree of anterior edge of injured vertebra, bone cement injection amount, bone cement leakage, pelvic index(PI), pelvic tilt angle (PT), sacral angle(SS), et al. Factors that may be related to refracture were included in the single-factor study, and multivariate Logistic regression analysis was performed on the risk factors with statistical significance in the single-factor analysis to further clarify the independent risk factors for refracture of adjacent vertebral bodies after PVP.

RESULTS: There were no significant differences in age, gender, fracture site, fracture to operation time, compression degree of injured vertebra and recovery degree of anterior edge of injured vertebra between two groups (P>0.05). There were significant differences in BMI, BMD T-value, bone cement injection amount and bone cement leakage rate between two groups(P<0.05). The PI and PT values of the refracture group were higher than those of the control group(P<0.05). There was no significant difference in SS between two groups (P>0.05). Multivariate Logistic regression analysis showed that decreased BMD T-value, bone cement leakage, increased PT and PI values increased the risk of recurrence of adjacent vertebral fractures in OVCFs (P<0.05).

CONCLUSION: There are many risk factors for the recurrence of adjacent vertebral fractures in super-old patients with OVCFs. Patients with high PI and PT values may be one of the risk factors.

PMID:35979761 | DOI:10.12200/j.issn.1003-0034.2022.08.002