1.Vertebral and Intraspinal Anomalies in Indian Population with Congenital Scoliosis: A Study of 119 Consecutive Patients.
Neeraj GUPTA ; Rajasekaran S ; Balamurali G ; Ajoy SHETTY
Asian Spine Journal 2016;10(2):276-281
STUDY DESIGN: Retrospective case study by clinical and radiological data analysis. PURPOSE: To analyze different types of vertebral anomalies and the incidence of associated intraspinal anomalies in the Indian population. OVERVIEW OF LITERATURE: This is the largest study of congenital scoliosis and associated intraspinal anomalies in Indian population. Incidence of intraspinal anomaly in this series is 47% which is higher than previous literature. Hemivertebra was the most common anomaly as seen in previous studies. METHODS: A total of 119 patients with congenital scoliosis who underwent surgery between December 2006 and December 2012 were studied. Data was reviewed with medical records, plain radiographs, and magnetic resonance imaging (MRI) scans. RESULTS: Thoracolumbar curve was most common, seen in 43.6% of patients. In addition to scoliotic deformity, kyphosis was seen in 26% of patients. Failure of formation, the most common vertebral anomaly, was seen in 51.2% of patients, failure of segmentation was seen in 19.3% of patients, and there were 29.4% patients having both formation and segmentation anomalies. Hemivertebra was the most common vertebral anomaly seen in 66.3% of patients and for whom 63.2% were in thoracic spine. Intraspinal anomalies were associated with 47% of patients with congenital scoliosis. Tethered cord was the most common intraspinal abnormality and was found in 48.2% patients with intraspinal anomalies. The patients with failure of segmentation and mixed deformities were found to have a significantly higher incidence of intraspinal anomalies (65% and 57%, respectively) than those with failure of formation (34%). Out of 31 patients with kyphotic deformity 29% had intraspinal anomalies, and amongst them tethered cord was the most common anomaly seen in 66% patients. Out of 12 patients with neurocutaneous markers, 83% patients had intraspinal anomaly. CONCLUSIONS: Intraspinal anomalies were seen in 47% of patients with congenital scoliosis in the Indian population. Tethered cord was the most common intraspinal anomaly, seen in 48% cases of congenital scoliosis. Hemivertebra was seen in 66% cases and was the most common vertebral defect. Hence MRI imaging of whole spine should be done in all cases of congenital scoliosis before any surgical intervention. Special attention should be given to physical examination and visualization of any neurocutaneous markers, which are associated with a higher incidence of intraspinal anomalies; absence of a neurocutaneous marker, however, does not rule out intraspinal anomaly.
Congenital Abnormalities
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Humans
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Incidence
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Kyphosis
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Magnetic Resonance Imaging
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Medical Records
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Physical Examination
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Retrospective Studies
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Scoliosis*
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Spine
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Statistics as Topic
2.Intraoperative Life Threatening Acute Lung Injury Due to Multiple Septic Pulmonary Emboli during Transpedicular Biopsy and Kyphoplasty.
Karuppaiah KARTHIK ; Ajoy Prasad SHETTY ; Shanmuganathan RAJASEKARAN
Asian Spine Journal 2014;8(2):197-201
A 55-year-old gentleman was presented to our clinic two months after a trivial fall with persistent pain, gibbus at the thoraco-lumbar junction and intact neurology. Radiological and laboratory investigations suggested osteoporotic fracture or metastasis. Due to unremitting pain, a plan was made to do transpedicular biopsy and kyphoplasty. Biopsy needles were inserted into both pedicles and an attempt at aspiration was made. Since the aspirate was dry, 5 to 6 mL of saline was injected through one needle and an attempt at aspiration was made through the other. Three-millilitres of sero-sanguineous material mixed with pus came out and kyphoplasty was deferred. After extubation, the patient developed severe bronchospasm and was transferred to the intensive care unit. Investigations confirmed multiple septic pulmonary emboli and the patient recovered completely after treatment. This report highlights that confirmation of the diagnosis is essential before performing any procedure that increases the intravertebral pressure and the place should have appropriate facilities to manage complications.
Acute Lung Injury*
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Biopsy*
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Bronchial Spasm
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Diagnosis
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Humans
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Intensive Care Units
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Kyphoplasty*
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Middle Aged
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Needles
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Neoplasm Metastasis
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Neurology
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Osteoporotic Fractures
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Suppuration
3.A Randomized Control Trial Comparing Local Autografts and Allografts in Single Level Anterior Cervical Discectomy and Fusion Using a StandAlone Cage
Rishi Mugesh KANNA ; Ashok Sri PERAMBUDURI ; Ajoy Prasad SHETTY ; Shanmuganathan RAJASEKARAN
Asian Spine Journal 2021;15(6):817-824
Methods:
We randomly sampled participants requiring a single level ACDF for degenerative conditions (n=27) between allograft (n=13) and local graft (n=14) groups. Follow-up of patients occurred at 6 weeks, 3 months, 6 months, and 1 year using Numerical Pain Rating Scale (NPRS) scores for arm and neck pain, Neck Disability Index (NDI), 2-item Short Form Health Survey (SF-12), and lateral disk height. We then assessed radiological fusion using computed tomography (CT) scan at 12 months, and graded as F- (no fusion), F (fusion seen through the cage), F+ (fusion seen through the cage, with bridging bone at one lateral edge), and F++ (fusion seen through cage with bridging bone bilaterally).
Results:
There were no significant differences in the age, sex, duration of intervention, blood loss, and hospital stay between the two groups (p>0.05). Both groups showed significant improvements in all functional outcome scores including NPRS for arm and neck pain, NDI, and SF-12 at each visit (p<0.01). We observed a marked improvement in disk height in both groups (p<0.05), but at 1 year of follow-up, there was a significant though slight subsidence (p=0.47). CT at 1 year showed no non-unions. We recorded F, F+, and F++ grades of fusion in 23.2%, 38.4%, and 38.4% in allograft group and 28.6%, 42.8%, and 28.6% in local graft group, respectively, though no significant differences observed (p=0.73).
Conclusions
Marginal osteophytes are effective as graft inside cages for ACDF, since they provide similar radiological outcomes, and equivalent improvements in functional outcomes, as compared to allografts.
4.Impact of Acute Lumbar Disk Herniation on Sexual Function in Male Patients
Keerthivasan PANNEERSELVAM ; Rishi Mugesh KANNA ; Ajoy Prasad SHETTY ; Shanmuganathan RAJASEKARAN
Asian Spine Journal 2022;16(4):510-518
Methods:
We evaluated sexually active male patients (n=22, 40.8±6.8 years) admitted for microdiscectomy with a questionnaire for assessing sexual function before and 8 weeks after surgery. The questionnaire included the Oswestry Disability Index, Hospital Anxiety Depression Score, and Brief Sexual Function Inventory (BSFI), as well as questions about perceived sexual dysfunction (frequency, performance, satisfaction).
Results:
The average preoperative Visual Analog Scale (VAS) score was 4.36±2.59 (n=18) for low back pain (LBP) and 6.81±2.1 (n=22) for leg pain. The mean preoperative BSFI score was 27.8±11.2. Among the five BSFI components, sexual drive was reduced in 63.0% of patients, while erection and ejaculation were affected in 40.9% and 31.8%, respectively. The VAS score for LBP had a negative correlation with the preoperative BSFI score (p <0.03). After LDH onset, 54.5% of patients noted a decrease in frequency, and 77.2% described a decrease in desire and satisfaction. At 8 weeks after surgery, the mean BSFI score significantly improved to 33.23 (p =0.002). Sexual drive was normal in 77.7% of patients, and erection and ejaculation were normal in 77.7% and 91.0%, respectively. Overall, 59.1% had resumed sexual intercourse within 6 weeks of surgery.
Conclusions
LDH resulted in sexual dysfunction in up to 77% of patients, which significantly improved after surgery. By 6 weeks, the majority had resumed sexual activity without undue discomfort. Therefore, this study supports counseling for patients with LDH about sexual function.
5.Patterns of Traumatic Spinal Injuries in the Developing World: A Five-Year Longitudinal Review
Rishi M. KANNA ; Sreeharsha PEDDIREDDY ; Ajoy P. SHETTY ; Shanmuganathan RAJASEKARAN
Asian Spine Journal 2022;16(5):658-665
Methods:
A review of case records of all patients treated at a tertiary level trauma center over a 5-year period (2015–2019) was performed. Epidemiological, clinical, and radiological data were analyzed.
Results:
The incidence of spinal trauma was 6.2% (2,065/33,072) among all trauma patients. Among these 2,065 patients, the mean age was 43.4±16.3 years and 77.3% (n=1,596) were aged 21–60 years. The major cause of injury was falls (52.1%, n=1,069) and 49.8% were high-energy falls (>10 feet [=3.048 m]). In patients with TSI due to falls, injuries occurred at the workplace (n=376), home (n=309), trees (n=151), wells (n=77), and electric poles (n=57). Road traffic accidents contributed to 42% (n=862) of TSIs and predominantly affected motorcyclists (52%, n=467). Around half (53.5%, n=1,005) of all patients were in the lower socioeconomic strata. The most common injury level was thoracic region (37.2%, n=769). Spinal cord injury (SCI) occurred in 49% (n=1,011) of patients and 49.7% (n=1,028) had injuries associated with other organs.
Conclusions
Our study indicated different demographic patterns and epidemiological features of TSI compared with the Western literature, including a preponderance of young male patients, falls from heights, motorcycle accidents, and a larger percentage of SCI. The high number of falls at workplace indicates a lack of knowledge among the public and policy makers about safety measures.
7.Motion-Preserving Navigated Primary Internal Fixation of Unstable C1 Fractures
Shanmuganathan RAJASEKARAN ; Dilip Chand Raja SOUNDARARAJAN ; Ajoy Prasad SHETTY ; Rishi Mugesh KANNA
Asian Spine Journal 2020;14(4):466-474
Methods:
The patients were positioned in a prone position, and cranial traction was applied using Mayfield tongs to restore the C0–C2 height and obtain a reduction in the displaced fracture fragments. An intraoperative, CT-based navigation system was used to enable the optimal placement of C1 screws. A transverse rod was then placed connecting the two screws, and controlled compression was applied across the fixation. The patients were prospectively evaluated in terms of their clinical, functional, and radiological outcomes, with a minimal follow-up of 2 years.
Results:
A total of 10 screws were placed in five patients, with a mean follow-up of 40.8 months. The mean duration of surgery was 77±13.96 minutes, and the average blood loss was 84.4±8.04 mL. The mean combined lateral mass dislocation at presentation was 14.6±1.34 mm and following surgery, it was 5.2±1.64 mm, with a correction of 9.4±2.3 mm (p <0.001). The follow-up CT showed excellent placement of screws and sound healing. There were no complications and instances of AA instability. The clinical range of movement at 2 years in degrees was as follows: rotation to the right (73.6°±9.09°), rotation to the left (71.6°±5.59°), flexion (35.4°±4.5°), extension (43.8°±8.19°), and lateral bending on the right (28.4°±10.45°) and left (24.8°±11.77°). Significant improvement was observed in the functional Neck Disability Index from 78±4.4 to 1.6±1.6. All patients returned to their occupation within 3 months.
Conclusions
Successful C1 reduction and fixation allows a motion-preserving option in unstable atlas fractures. CT navigation permits accurate and adequate monosegmental fixation with excellent clinical and radiological outcomes, and all patients in this study returned to their preoperative functional status.
8.Circumferential Fusion through All-Posterior Approach in Andersson Lesion.
Sreekanth Reddy RAJOLI ; Rishi Mugesh KANNA ; Siddharth N AIYER ; Ajoy Prasad SHETTY ; Shanmuganathan RAJASEKARAN
Asian Spine Journal 2017;11(3):444-453
STUDY DESIGN: Retrospective case series. PURPOSE: To assess safety and efficacy of single stage, posterior stabilisation and anterior cage reconstruction through the transforaminal or lateral extra-cavitary route for Andersson lesions. OVERVIEW OF LITERATURE: Pseudoarthrosis in ankylosing spondylitis (Andersson lesion, AL) can cause progressive kyphosis and neurological deficit. Management involves early recognition and surgical stabilisation in patients with instability. However, the need and safety of anterior reconstruction of the vertebral body defect remains unclear. METHODS: Twenty consecutive patients with AL whom presented with instability back pain and or neurological deficit were managed by single stage posterior approach with long segment pedicle screw fixation and anterior vertebral reconstruction. Radiological evaluation included- the regional kyphotic angle, measurement of anterior defect in computed tomography (CT) scan and the spinal cord status in magnetic resonance imaging. Radiological outcomes were assessed for fusion and kyphosis correction. Functional outcomes were assessed with visual analogue scale (VAS), ankylosing spondylitis quality of life (ASQoL) and Oswestry disability index (ODI). RESULTS: The mean age of the patients was 50.1 years (male, 18; female, 2). The levels affected include thoracolumbar (n=12), lower thoracic (n=5) and lumbar (n=3) regions. The mean level of fixation was 6.2±2.4 vertebrae. The mean anterior column defect was 1.6±0.6 cm. The mean surgical duration, blood loss and hospital stay were 112 minutes, 452 mL and 6.2 days, respectively. The mean followup was 2.1 years. At final follow up, VAS for back pain improved from 8.2 to 2.4 while ODI improved from 62.7 to 18.5 (p <0.05) and ASQoL improved from 14.3±2.08 to 7.90±1.48 (p <0.05). All patients had achieved radiological union at a mean 7.2±4.6 months. The mean regional kyphotic angle was 27° preoperatively, 16.7° postoperatively and 18.1° at the final follow-up. CONCLUSIONS: Posterior stabilisation and anterior reconstruction with cage through an all-posterior approach is safe and can achieve good results in Andersson lesions.
Back Pain
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Female
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Follow-Up Studies
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Humans
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Kyphosis
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Length of Stay
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Magnetic Resonance Imaging
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Pedicle Screws
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Pseudarthrosis
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Quality of Life
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Retrospective Studies
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Spinal Cord
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Spine
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Spondylitis, Ankylosing
9.Factors Influencing Postoperative Urinary Retention Following Elective Posterior Lumbar Spine Surgery: A Prospective Study
Siddharth Narasimhan AIYER ; Ajit KUMAR ; Ajoy Prasad SHETTY ; Rishi Mugesh KANNA ; Shanmuganath RAJASEKARAN
Asian Spine Journal 2018;12(6):1100-1105
STUDY DESIGN: Prospective observational study. PURPOSE: To determine the incidence of postoperative urinary retention (POUR) in patients undergoing elective posterior lumbar spine surgery and identify the risk factors associated with the development of POUR. OVERVIEW OF LITERATURE: POUR following surgery can lead to detrusor dysfunction, urinary tract infections, prolonged hospital stay, and a higher treatment cost; however, the risk factors for POUR in spine surgery remain unclear. METHODS: A prospective, consecutive analysis was conducted on patients undergoing elective posterior lumbar surgery in the form of lumbar discectomy, lumbar decompression, and single-level lumbar fusions during a 6-month period. Patients with spine trauma, preoperative neurological deficit, previous urinary disturbance/symptoms, multiple-level fusion, and preoperative catheterization were excluded from the study. Potential patient- and surgery-dependent risk factors for the development of POUR were assessed. Univariate analysis and a multiple logistical regression analysis were performed. RESULTS: A total of 687 patients underwent posterior lumbar spine surgery during the study period; among these, 370 patients were included in the final analysis. Sixty-one patients developed POUR, with an incidence of 16.48%. Significant risk factors for POUR were older age, higher body mass index (BMI), surgery duration, intraoperative fluid administration, lumbar fusion versus discectomy/decompression, and higher postoperative pain scores (p < 0.05 for all). Sex, diabetes, and the type of inhalational agent used during anesthesia were not significantly associated with POUR. Multiple logistical regression analysis, including age, BMI, surgery duration, intraoperative fluid administration, fusion surgery, and postoperative pain scores demonstrated a predictive value of 92% for the study population and 97% for the POUR group. CONCLUSIONS: POUR was associated with older age, higher BMI, longer surgery duration, a larger volume of intraoperative fluid administration, and higher postoperative pain scores. The contribution of postoperative pain scores in the multiple regression analysis was a significant predictor of POUR.
Anesthesia
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Body Mass Index
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Catheterization
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Catheters
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Decompression
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Diskectomy
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Health Care Costs
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Humans
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Incidence
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Length of Stay
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Observational Study
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Pain, Postoperative
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Postoperative Complications
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Prospective Studies
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Risk Factors
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Spinal Fusion
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Spine
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Urinary Catheterization
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Urinary Retention
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Urinary Tract Infections
10.Factors Affecting Early and 1-Year Motor Recovery Following Lumbar Microdiscectomy in Patients with Lumbar Disc Herniation: A Prospective Cohort Review
Vibhu Krishnan VISWANATHAN ; Rajasekaran SHANMUGANATHAN ; Siddharth Narasimhan AIYER ; Rishi KANNA ; Ajoy Prasad SHETTY
Asian Spine Journal 2019;13(1):135-145
STUDY DESIGN: Prospective cohort study. PURPOSE: The study was aimed at evaluating clinicoradiological factors affecting recovery of neurological deficits in cases of lumbar disc herniation (LDH) treated by lumbar microdiscectomy. OVERVIEW OF LITERATURE: The majority of the available literature on neurological recovery following neurodeficit is limited to retrospective series. The literature is currently limited regarding variables that can help predict the recovery of neurodeficits following LDH. METHODS: A prospective analysis was performed on 70 consecutive patients who underwent lumbar microdiscectomy (L1–2 to L5–S1) owing to neurological deficits due to LDH. Patients with motor power ≤3/5 in L2–S1 myotomes were considered for analysis. Follow-up was performed at 2, 6, and 12 months to note recovery of motor deficits. Clinicoradiological parameters were compared between the recovered and nonrecovered groups. RESULTS: A total of 65 patients were available at the final follow-up: 41 (63%) had completely recovered by 2 months; four showed delayed recovery at the 6-month follow-up; and 20 (30.7%) showed no recovery at 1 year. Clinicoradiological factors, including diabetes, complete initial deficit, areflexia, multilevel disc prolapse, longer duration since initial symptoms, and ≥2 previous symptomatic episodes were associated with a significant risk of poorer recovery (p < 0.05 for all). Age, sex, occupation, smoking, level/type or location of disc herniation, primary canal stenosis, disc fragment dimensions, precipitating factors, bladder involvement, bilaterality of symptoms, and the presence or absence of anal reflex did not affect neurological recovery (p>0.05 for all). Diabetes mellitus (p=0.033) and complete initial motor deficit (p=0.028) were significantly associated with delayed recovery in the multivariate analysis. CONCLUSIONS: The overall neurological recovery rate in our study was 69%. Diabetes mellitus (p=0.033) and complete initial motor deficit were associated with delayed motor recovery.
Cohort Studies
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Constriction, Pathologic
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Diabetes Mellitus
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Follow-Up Studies
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Humans
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Intervertebral Disc Displacement
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Multivariate Analysis
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Neurologic Manifestations
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Occupations
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Precipitating Factors
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Prognosis
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Prolapse
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Prospective Studies
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Reflex
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Retrospective Studies
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Smoke
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Smoking
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Urinary Bladder