Back pain differential diagnosis: Difference between revisions
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* To rule out serious underlying etiology | * To rule out serious underlying etiology | ||
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![[Sciatica]] | ![[Sciatica]]<ref name="pmid967084">{{cite journal |vauthors=Hay MC |title=Anatomy of the lumbar spine |journal=Med. J. Aust. |volume=1 |issue=23 |pages=874–6 |date=June 1976 |pmid=967084 |doi= |url=}}</ref><ref name="pmid9971865">{{cite journal |vauthors=Vroomen PC, de Krom MC, Wilmink JT, Kester AD, Knottnerus JA |title=Lack of effectiveness of bed rest for sciatica |journal=N. Engl. J. Med. |volume=340 |issue=6 |pages=418–23 |date=February 1999 |pmid=9971865 |doi=10.1056/NEJM199902113400602 |url=}}</ref> | ||
|Acute | |Acute | ||
|Minutes to hours | |Minutes to hours | ||
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* Serum protein electrophoresis | * Serum protein electrophoresis | ||
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Radiography | Radiography | ||
* With technetium-99m labeled phosphorus to indicate bone mineralization status | * With technetium-99m labeled phosphorus to indicate bone mineralization status | ||
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![[Spinal cord compression]] | ![[Spinal cord compression]]<ref name="pmid2096606">{{cite journal |vauthors=Bach F, Larsen BH, Rohde K, Børgesen SE, Gjerris F, Bøge-Rasmussen T, Agerlin N, Rasmusson B, Stjernholm P, Sørensen PS |title=Metastatic spinal cord compression. Occurrence, symptoms, clinical presentations and prognosis in 398 patients with spinal cord compression |journal=Acta Neurochir (Wien) |volume=107 |issue=1-2 |pages=37–43 |date=1990 |pmid=2096606 |doi= |url=}}</ref><ref name="pmid8204366">{{cite journal |vauthors=Helweg-Larsen S, Sørensen PS |title=Symptoms and signs in metastatic spinal cord compression: a study of progression from first symptom until diagnosis in 153 patients |journal=Eur. J. Cancer |volume=30A |issue=3 |pages=396–8 |date=1994 |pmid=8204366 |doi= |url=}}</ref> | ||
- Thoracic spine | - Thoracic spine | ||
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|Minutes to hours | |Minutes to hours | ||
|Severe and localized | |||
|Locally, may radiate below lesion | |||
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| | |Neoplasm must be suspected and is ruled out by | ||
** CBC - May demonstrate a pancytopenia | |||
** Prothrombin time and activated partial thromboplastin time - May be prolonged | |||
** Metabolic profile, including calcium level and liver function - May indicate metastasis | |||
| | |MRI | ||
* May demonstrate tumors and collapse of intervertebral spaces | |||
* May distinguish between bone lesions and malignancy | |||
Radiography | |||
* May demonstrates bony destruction or calcification | |||
Nuclear imaging | |||
* To identify neoplasms | |||
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Revision as of 20:03, 29 March 2018
Back pain Microchapters |
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Back pain differential diagnosis On the Web |
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Editor-In-Chief: C. Michael Gibson, M.S., M.D. [1];Associate Editor(s)-in-Chief: Hadeel Maksoud M.D.[2]
An expert algorithm to assist in the diagnosis of back pain can be found here
Overview
There are several life-threatening causes of back pain which need to be evaluated for first, which include; spinal cord or cauda equina compression, aortic dissection, aortic aneurysm, vertebral osteomyelitis, epidural abscess, and metastatic cancer. The other possible causes of back pain can be evaluated for by carefully assessing the nature of the pain, and obtaining a thorough patient history.
Differential Diagnosis
Life Threatening Causes
Life threatening diseases to exclude immediately include:[1][2][3][4][2][3][5][6][7][8][9][10][11][12][13][14][15][16][17]
- Abdominal aortic aneurysm
- Adrenal hemorrhage
- Aortic dissection
- Arachnoiditis
- Cauda equina syndrome
- Cervical fracture
- Chronic stable angina
- Epidural abscess
- Pulmonary embolism
- Retroperitoneal hematoma
- Traumatic aortic rupture
- Vertebral fractures
Common Causes
- Abnormal posturing
- Degenerative disc disease
- Depression
- Osteoarthritis
- Pregnancy
- Premenstrual syndrome
- Sciatica
- Spinal disc herniation
- Spinal stenosis
- Trauma
Differential Diagnosis of Back Pain
Classification of pain in the back based on etiology | Diease | Clinical Manifestation | Diagnosis | Comments | |||||||||||||||||
---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
Symptoms | Signs | Lab findings | Imaging | ||||||||||||||||||
Onset | Duration | Quality of pain | Radiation | Stiffness | Fever | Rigors and chills | Headache | Nausea and vomiting | Syncopy | Weight loss | Motor weakness | Sensory deficit | Pulse Deficit | Heart Murmur | Bowel or bladder dysfunction | Horner's syndrome | |||||
Vascular | Aortic dissection[18][19][20][20][21][22] | Severe and sudden (acute) and rarely, chronic | Minutes to hours | Sharp and knife-like, also tearing or ripping | Back and/or flanks | - | - | - | - | - | +/- | - | - | - | + | +/- | - | - | Elevations in:
|
ECG:
Chest radiography:
|
|
Aortic aneurysm
rupture[23][24][25] - Abdominal aortic aneurysm |
Acute | Minutes to hours | Sharp and knife-like, also tearing or ripping | Back and/ or flanks | - | - | - | - | - | +/- | - | - | - | + | +/- | - | - |
Typically no specific lab findings, however, evidence of haemorrhage and organ injury may be seen in:
|
Ultrasonography
Chest radiography
CT
MRI
Angiography
Echocardiography (Transesophageal)
|
| |
Chronic stable angina[26][27] | Chronic | Variable | Discomfort in the chest | Left shoulder, arm and jaw | - | - | - | - | +/- | +/- | - | - | - | +/- | +/- | - | - | Detection of:
|
Chest radiography
Exercise stress testing
Stress Echo
Nuclear imaging
CT
CT Angiography
EKG
|
| |
Pulmonary embolism[28][29] | Acute | Minutes | Sharp | All over chest and back | +/- | - | - | +/- | +/- | +/- | - | - | - | +/- | +/- | - | - | Lab findings are not specfic and are done to rule out other diseases such as:
|
|
| |
Traumatic aortic rupture[30][31] | Acute | Minutes to hours | Sharp and knife-like, also tearing or ripping | Back and/ or flanks | - | - | - | - | - | +/- | - | - | - | +/- | +/- | - | - | Typically no specific lab findings, however, evidence of haemorrhage and organ injury may be seen in:
|
Ultrasonography
CT
MRI
Angiography
Echocardiography (Transesophageal)
|
| |
Retroperitoneal hematoma[32][33][34] | Acute or subacute | Minutes to hours | Sharp and knife-like, also tearing or ripping | Back and/or flanks | - | - | - | - | +/- | - | - | - | - | - | - | - | - |
Typically no specific lab findings, however, evidence of haemorrhage and organ injury may be seen in:
|
CT with IV contrast
Cystography
|
| |
Waterhouse-Friderichsen syndrome[35][36] | Acute | Minutes to hours | Sudden, severe, sharp | Back and/or flanks | - | + | +/- | +/- | +/- | +/- | +/- | - | - | - | - | - | - | CBC
Serum electrolytes
Blood urea nitrogen
Creatinine
Plasma glucose
Serum cortisol
Plasma ACTH,
|
CT
|
| |
Classification of pain in the back based on etiology | Diease | Clinical Manifestation | Diagnosis | Comments | |||||||||||||||||
Symptoms | Signs | Lab findings | Imaging | ||||||||||||||||||
Onset | Duration | Quality of pain | Radiation | Stiffness | Fever | Rigors and chills | Headache | Nausea and vomiting | Syncopy | Weight loss | Motor weakness | Sensory deficit | Pulse Deficit | Heart Murmur | Bowel or bladder dysfunction | Horner's syndrome | |||||
NeurologicalU | Arachnoiditis[37] | Acute | Hours | Dull aching pain | Head, neck and back | +/- | + | +/- | +/- | +/- | +/- | +/- | +/- | +/- | - | - | +/- | +/- | CSF
Culture and sensitivity
Nucleic acid tests
|
Radiography
CT
MRI
|
|
Cauda equina syndrome[38][39] | Acute | Hours | Severe, sharp local pain | Rarely to sacroiliac joint | - | - | - | - | - | - | - | + | +/- | - | - | +/- | - | CBC
Electrolytes, blood urea nitrogen, and creatinine
Erythrocyte sedimentation rate
Syphilis serology
|
Radiography
MRI
Duplex
Lumbar puncture
|
Electrical studies:
EMG
SSEPs
| |
Epidural abscess[40][41] | Acute | Variable | Dull, throbbing pain | Locally | - | +/- | +/- | +/- | +/- | +/- | +/- | +/- | +/- | - | - | +/- | +/- | CBC
ESR
Culture and sensitivity
Immunohistochemical staining
|
MRI
CT
Radiography
|
| |
Radiculopathy[42][43] | Acute | Variable | Severe, shooting pain | Anterior thigh and knee | +/- | - | - | - | - | - | - | +/- | +/- | - | - | +/- | - |
|
Radiography
CT
MRI
Myelography
Discography
|
||
Sciatica[44][45] | Acute | Minutes to hours | Severe, shooting pain | Posterior thigh, buttocks and knee | +/- | - | - | - | - | - | - | +/- | +/- | - | - | +/- | - | To exclude other pathologies
|
Radiography
CT
MRI
Myelography
Discography
|
||
Spinal cord compression[38][39]
- Thoracic spine - Lumbar spine |
Acute | Minutes to hours | Severe and localized | Locally, may radiate below lesion | - | - | - | - | - | - | - | +/- | +/- | - | - |
+/- |
- | Neoplasm must be suspected and is ruled out by
|
MRI
Radiography
Nuclear imaging
|
||
Classification of pain in the back based on etiology | Diease | Clinical Manifestation | Diagnosis | Comments | |||||||||||||||||
Symptoms | Signs | Lab findings | Imaging | ||||||||||||||||||
Onset | Duration | Quality of pain | Radiation | Stiffness | Fever | Rigors and chills | Headache | Nausea and vomiting | Syncopy | Weight loss | Motor weakness | Sensory deficit | Pulse Deficit | Heart Murmur | Bowel or bladder dysfunction | Horner's syndrome | |||||
Bone | Ankylosing spondylitis | Subacute or chronic | Years | ||||||||||||||||||
Bertolotti's syndrome (Lumbosacral transitional vertebrae) | Chronic | Years | |||||||||||||||||||
Chronic recurrent focal osteomyelitis | Chronic | Years | |||||||||||||||||||
Cervical fracture | Acute | Minutes to hours | |||||||||||||||||||
Degenerative disc disease | Subacute or chronic | Years | |||||||||||||||||||
Disc herniation | Acute | Minutes to hours | |||||||||||||||||||
Discitis | Chronic | Years | |||||||||||||||||||
Hyperkyphosis | Chronic | Years | |||||||||||||||||||
Osteoarthritis | Chronic | Years | |||||||||||||||||||
Sacroiliac joint dysfunction | Chronic | Years | |||||||||||||||||||
Sacroilitis | Acute or chronic | Variable | |||||||||||||||||||
Scheuermann (juvenile) kyphosis | Chronic | Years | |||||||||||||||||||
Scoliosis | Chronic | Years | |||||||||||||||||||
Spinal stenosis | Chronic | ||||||||||||||||||||
Spondylosis | Chronic | ||||||||||||||||||||
Vertebral compression fracture | Acute | ||||||||||||||||||||
Vertebral osteomyelitis | Chronic | ||||||||||||||||||||
Classification of pain in the back based on etiology | Diease | Clinical Manifestation | Diagnosis | Comments | |||||||||||||||||
Symptoms | Signs | Lab findings | Imaging | ||||||||||||||||||
Onset | Duration | Quality of pain | Radiation | Stiffness | Fever | Rigors and chills | Headache | Nausea and vomiting | Syncopy | Weight loss | Motor weakness | Sensory deficit | Pulse Deficit | Heart Murmur | Bowel or bladder dysfunction | Horner's syndrome | |||||
Non-spinal infections | Appendicitis | Acute | |||||||||||||||||||
Endocarditis | Acute or subacute | ||||||||||||||||||||
Cholelithiasis | Acute or subacute | Minutes or hours | |||||||||||||||||||
Cystitis | Acute | ||||||||||||||||||||
Myalgia | Chronic | ||||||||||||||||||||
Nephrolithiasis | Acute | ||||||||||||||||||||
Pancreatitis | Acute or chronic | Variable | |||||||||||||||||||
Pyelonephritis | Acute or chronic | ||||||||||||||||||||
Pelvic inflammatory disease | Acute or chronic | ||||||||||||||||||||
Pneumonia | Acute or chronic | Variable | |||||||||||||||||||
Pyomyositis | Acute or chronic | ||||||||||||||||||||
Rheumatoid arthritis | Chronic | Years | |||||||||||||||||||
Classification of pain in the back based on etiology | Diease | Clinical Manifestation | Diagnosis | Comments | |||||||||||||||||
Symptoms | Signs | Lab findings | Imaging | ||||||||||||||||||
Onset | Duration | Quality of pain | Radiation | Stiffness | Fever | Rigors and chills | Headache | Nausea and vomiting | Syncopy | Weight loss | Motor weakness | Sensory deficit | Pulse Deficit | Heart Murmur | Bowel or bladder dysfunction | Horner's syndrome | |||||
Tumors | Ewing's sarcoma | Chronic | |||||||||||||||||||
Langerhans cell histiocytosis (eosinophilic granulomas) | Chronic | ||||||||||||||||||||
Leukemia | Acute or chronic | ||||||||||||||||||||
Lymphoma | Chronic | ||||||||||||||||||||
Neurofibroma | Chronic | ||||||||||||||||||||
Osteoblastoma | Chronic | ||||||||||||||||||||
Osteoid osteoma | Chronic | ||||||||||||||||||||
Osteosarcoma | Chronic | ||||||||||||||||||||
Prostate cancer | Chronic | ||||||||||||||||||||
Classification of pain in the back based on etiology | Diease | Clinical Manifestation | Diagnosis | Comments | |||||||||||||||||
Symptoms | Signs | Lab findings | Imaging | ||||||||||||||||||
Onset | Duration | Quality of pain | Radiation | Stiffness | Fever | Rigors and chills | Headache | Nausea and vomiting | Syncopy | Weight loss | Motor weakness | Sensory deficit | Pulse Deficit | Heart Murmur | Bowel or bladder dysfunction | Horner's syndrome | |||||
Muscle-related | Abnormal posturing | Chronic | |||||||||||||||||||
Muscle spasm | Acute | ||||||||||||||||||||
Pyriformis syndrome | Chronic | ||||||||||||||||||||
Classification of pain in the back based on etiology | Diease | Clinical Manifestation | Diagnosis | Comments | |||||||||||||||||
Symptoms | Signs | Lab findings | Imaging | ||||||||||||||||||
Onset | Duration | Quality of pain | Radiation | Stiffness | Fever | Rigors and chills | Headache | Nausea and vomiting | Syncopy | Weight loss | Motor weakness | Sensory deficit | Pulse Deficit | Heart Murmur | Bowel or bladder dysfunction | Horner's syndrome | |||||
Miscellaneous | Chronic fatigue syndrome | Chronic | |||||||||||||||||||
Depression | Chronic | ||||||||||||||||||||
Herpes zoster | Acute or chronic | Variable | |||||||||||||||||||
Pregnancy | Chronic | ||||||||||||||||||||
Premenstrual syndrome | Acute | ||||||||||||||||||||
Sickle cell anemia | Acute or chronic | ||||||||||||||||||||
Syringomyelia | Chronic | ||||||||||||||||||||
Trauma | Acute or chronic | ||||||||||||||||||||
Ureteropelvic junction obstruction | Acute |
References
- ↑ Chou R, Qaseem A, Owens DK, Shekelle P (February 2011). "Diagnostic imaging for low back pain: advice for high-value health care from the American College of Physicians". Ann. Intern. Med. 154 (3): 181–9. doi:10.7326/0003-4819-154-3-201102010-00008. PMID 21282698.
- ↑ 2.0 2.1 Schiff D, O'Neill BP, Suman VJ (August 1997). "Spinal epidural metastasis as the initial manifestation of malignancy: clinical features and diagnostic approach". Neurology. 49 (2): 452–6. PMID 9270576.
- ↑ 3.0 3.1 Deyo RA, Diehl AK (1988). "Cancer as a cause of back pain: frequency, clinical presentation, and diagnostic strategies". J Gen Intern Med. 3 (3): 230–8. PMID 2967893.
- ↑ Sun JC, Xu T, Chen KF, Qian W, Liu K, Shi JG, Yuan W, Jia LS (April 2014). "Assessment of cauda equina syndrome progression pattern to improve diagnosis". Spine. 39 (7): 596–602. doi:10.1097/BRS.0000000000000079. PMID 24150427.
- ↑ Jarvik JG, Deyo RA (October 2002). "Diagnostic evaluation of low back pain with emphasis on imaging". Ann. Intern. Med. 137 (7): 586–97. PMID 12353946.
- ↑ Underwood MR, Dawes P (November 1995). "Inflammatory back pain in primary care". Br. J. Rheumatol. 34 (11): 1074–7. PMID 8542211.
- ↑ "Acute low back problems in adults: assessment and treatment. Agency for Health Care Policy and Research". Clin Pract Guidel Quick Ref Guide Clin (14): iii–iv, 1–25. December 1994. PMID 7987418.
- ↑ Ropper AH, Zafonte RD (March 2015). "Sciatica". N. Engl. J. Med. 372 (13): 1240–8. doi:10.1056/NEJMra1410151. PMID 25806916.
- ↑ Delitto A, Piva SR, Moore CG, Fritz JM, Wisniewski SR, Josbeno DA, Fye M, Welch WC (April 2015). "Surgery versus nonsurgical treatment of lumbar spinal stenosis: a randomized trial". Ann. Intern. Med. 162 (7): 465–73. doi:10.7326/M14-1420. PMID 25844995.
- ↑ Papadopoulos EC, Khan SN (January 2004). "Piriformis syndrome and low back pain: a new classification and review of the literature". Orthop. Clin. North Am. 35 (1): 65–71. doi:10.1016/S0030-5898(03)00105-6. PMID 15062719.
- ↑ Hopayian K, Song F, Riera R, Sambandan S (December 2010). "The clinical features of the piriformis syndrome: a systematic review". Eur Spine J. 19 (12): 2095–109. doi:10.1007/s00586-010-1504-9. PMC 2997212. PMID 20596735.
- ↑ Potter NA, Rothstein JM (November 1985). "Intertester reliability for selected clinical tests of the sacroiliac joint". Phys Ther. 65 (11): 1671–5. PMID 2932746.
- ↑ Russel AS, Maksymowych W, LeClercq S (December 1981). "Clinical examination of the sacroiliac joints: a prospective study". Arthritis Rheum. 24 (12): 1575–7. PMID 7326071.
- ↑ Levangie PK (November 1999). "Four clinical tests of sacroiliac joint dysfunction: the association of test results with innominate torsion among patients with and without low back pain". Phys Ther. 79 (11): 1043–57. PMID 10534797.
- ↑ Riddle DL, Freburger JK (August 2002). "Evaluation of the presence of sacroiliac joint region dysfunction using a combination of tests: a multicenter intertester reliability study". Phys Ther. 82 (8): 772–81. PMID 12147007.
- ↑ Irwin RW, Watson T, Minick RP, Ambrosius WT (January 2007). "Age, body mass index, and gender differences in sacroiliac joint pathology". Am J Phys Med Rehabil. 86 (1): 37–44. PMID 17304687.
- ↑ Jancuska JM, Spivak JM, Bendo JA (2015). "A Review of Symptomatic Lumbosacral Transitional Vertebrae: Bertolotti's Syndrome". Int J Spine Surg. 9: 42. doi:10.14444/2042. PMC 4603258. PMID 26484005.
- ↑ Suzuki T, Distante A, Eagle K (November 2010). "Biomarker-assisted diagnosis of acute aortic dissection: how far we have come and what to expect". Curr. Opin. Cardiol. 25 (6): 541–5. doi:10.1097/HCO.0b013e32833e6e13. PMID 20717014.
- ↑ Wang Y, Tan X, Gao H, Yuan H, Hu R, Jia L, Zhu J, Sun L, Zhang H, Huang L, Zhao D, Gao P, Du J (January 2018). "Magnitude of Soluble ST2 as a Novel Biomarker for Acute Aortic Dissection". Circulation. 137 (3): 259–269. doi:10.1161/CIRCULATIONAHA.117.030469. PMID 29146682.
- ↑ 20.0 20.1 Akutsu K, Yamanaka H, Katayama M, Yamamoto T, Takayama M, Osaka M, Sato N, Shimizu W (November 2016). "Usefulness of Measuring the Serum Elastin Fragment Level in the Diagnosis of an Acute Aortic Dissection". Am. J. Cardiol. 118 (9): 1405–1409. doi:10.1016/j.amjcard.2016.07.052. PMID 27666178.
- ↑ Suzuki T, Katoh H, Tsuchio Y, Hasegawa A, Kurabayashi M, Ohira A, Hiramori K, Sakomura Y, Kasanuki H, Hori S, Aikawa N, Abe S, Tei C, Nakagawa Y, Nobuyoshi M, Misu K, Sumiyoshi T, Nagai R (October 2000). "Diagnostic implications of elevated levels of smooth-muscle myosin heavy-chain protein in acute aortic dissection. The smooth muscle myosin heavy chain study". Ann. Intern. Med. 133 (7): 537–41. PMID 11015167.
- ↑ Marshall LM, Carlson EJ, O'Malley J, Snyder CK, Charbonneau NL, Hayflick SJ, Coselli JS, Lemaire SA, Sakai LY (October 2013). "Thoracic aortic aneurysm frequency and dissection are associated with fibrillin-1 fragment concentrations in circulation". Circ. Res. 113 (10): 1159–68. doi:10.1161/CIRCRESAHA.113.301498. PMID 24036495.
- ↑ Chaikof EL, Brewster DC, Dalman RL, Makaroun MS, Illig KA, Sicard GA, Timaran CH, Upchurch GR, Veith FJ (October 2009). "The care of patients with an abdominal aortic aneurysm: the Society for Vascular Surgery practice guidelines". J. Vasc. Surg. 50 (4 Suppl): S2–49. doi:10.1016/j.jvs.2009.07.002. PMID 19786250.
- ↑ Sullivan CA, Rohrer MJ, Cutler BS (June 1990). "Clinical management of the symptomatic but unruptured abdominal aortic aneurysm". J. Vasc. Surg. 11 (6): 799–803. PMID 2359191.
- ↑ Lesperance K, Andersen C, Singh N, Starnes B, Martin MJ (June 2008). "Expanding use of emergency endovascular repair for ruptured abdominal aortic aneurysms: disparities in outcomes from a nationwide perspective". J. Vasc. Surg. 47 (6): 1165–70, discussion 1170–1. doi:10.1016/j.jvs.2008.01.055. PMID 18394857.
- ↑ Kreiner M, Okeson JP, Michelis V, Lujambio M, Isberg A (January 2007). "Craniofacial pain as the sole symptom of cardiac ischemia: a prospective multicenter study". J Am Dent Assoc. 138 (1): 74–9. PMID 17197405.
- ↑ Lee TH, Cook EF, Weisberg M, Sargent RK, Wilson C, Goldman L (January 1985). "Acute chest pain in the emergency room. Identification and examination of low-risk patients". Arch. Intern. Med. 145 (1): 65–9. PMID 3970650.
- ↑ Lassila R, Jula A, Pitkäniemi J, Haukka J (November 2014). "The association of statin use with reduced incidence of venous thromboembolism: a population-based cohort study". BMJ Open. 4 (11): e005862. doi:10.1136/bmjopen-2014-005862. PMC 4225235. PMID 25377011.
- ↑ Horlander KT, Mannino DM, Leeper KV (July 2003). "Pulmonary embolism mortality in the United States, 1979-1998: an analysis using multiple-cause mortality data". Arch. Intern. Med. 163 (14): 1711–7. doi:10.1001/archinte.163.14.1711. PMID 12885687.
- ↑ Dyer DS, Moore EE, Ilke DN, McIntyre RC, Bernstein SM, Durham JD, Mestek MF, Heinig MJ, Russ PD, Symonds DL, Honigman B, Kumpe DA, Roe EJ, Eule J (April 2000). "Thoracic aortic injury: how predictive is mechanism and is chest computed tomography a reliable screening tool? A prospective study of 1,561 patients". J Trauma. 48 (4): 673–82, discussion 682–3. PMID 10780601.
- ↑ Mirvis SE, Shanmuganathan K, Buell J, Rodriguez A (November 1998). "Use of spiral computed tomography for the assessment of blunt trauma patients with potential aortic injury". J Trauma. 45 (5): 922–30. PMID 9820704.
- ↑ Poplin GS, McMurry TL, Forman JL, Hartka T, Park G, Shaw G, Shin J, Kim H, Crandall J (May 2015). "Nature and etiology of hollow-organ abdominal injuries in frontal crashes". Accid Anal Prev. 78: 51–7. doi:10.1016/j.aap.2015.02.015. PMID 25744173. Vancouver style error: initials (help)
- ↑ Kuan JK, Wright JL, Nathens AB, Rivara FP, Wessells H (February 2006). "American Association for the Surgery of Trauma Organ Injury Scale for kidney injuries predicts nephrectomy, dialysis, and death in patients with blunt injury and nephrectomy for penetrating injuries". J Trauma. 60 (2): 351–6. doi:10.1097/01.ta.0000202509.32188.72. PMID 16508495.
- ↑ Harris DG, Drucker CB, Brenner ML, Sarkar R, Narayan M, Crawford RS (November 2013). "Patterns and management of blunt abdominal aortic injury". Ann Vasc Surg. 27 (8): 1074–80. doi:10.1016/j.avsg.2012.09.019. PMID 23790766.
- ↑ Migeon CJ, Kenny FM, Hung W, Voorhess ML (August 1967). "Study of adrenal function in children with meningitis". Pediatrics. 40 (2): 163–83. PMID 5006579.
- ↑ MARGARETTEN W, NAKAI H, LANDING BH (April 1963). "Septicemic adrenal hemorrhage". Am. J. Dis. Child. 105: 346–51. PMID 13932989.
- ↑ Ozateş M, Kemaloglu S, Gürkan F, Ozkan U, Hoşoglu S, Simşek MM (January 2000). "CT of the brain in tuberculous meningitis. A review of 289 patients". Acta Radiol. 41 (1): 13–7. PMID 10665863.
- ↑ 38.0 38.1 Bach F, Larsen BH, Rohde K, Børgesen SE, Gjerris F, Bøge-Rasmussen T, Agerlin N, Rasmusson B, Stjernholm P, Sørensen PS (1990). "Metastatic spinal cord compression. Occurrence, symptoms, clinical presentations and prognosis in 398 patients with spinal cord compression". Acta Neurochir (Wien). 107 (1–2): 37–43. PMID 2096606.
- ↑ 39.0 39.1 Helweg-Larsen S, Sørensen PS (1994). "Symptoms and signs in metastatic spinal cord compression: a study of progression from first symptom until diagnosis in 153 patients". Eur. J. Cancer. 30A (3): 396–8. PMID 8204366.
- ↑ Nathoo N, Nadvi SS, van Dellen JR (April 1999). "Cranial extradural empyema in the era of computed tomography: a review of 82 cases". Neurosurgery. 44 (4): 748–53, discussion 753–4. PMID 10201299.
- ↑ Heran NS, Steinbok P, Cochrane DD (October 2003). "Conservative neurosurgical management of intracranial epidural abscesses in children". Neurosurgery. 53 (4): 893–7, discussion 897–8. PMID 14519222.
- ↑ Bischoff RJ, Rodriguez RP, Gupta K, Righi A, Dalton JE, Whitecloud TS (August 1993). "A comparison of computed tomography-myelography, magnetic resonance imaging, and myelography in the diagnosis of herniated nucleus pulposus and spinal stenosis". J Spinal Disord. 6 (4): 289–95. PMID 8219542.
- ↑ Tarulli AW, Raynor EM (May 2007). "Lumbosacral radiculopathy". Neurol Clin. 25 (2): 387–405. doi:10.1016/j.ncl.2007.01.008.
- ↑ Hay MC (June 1976). "Anatomy of the lumbar spine". Med. J. Aust. 1 (23): 874–6. PMID 967084.
- ↑ Vroomen PC, de Krom MC, Wilmink JT, Kester AD, Knottnerus JA (February 1999). "Lack of effectiveness of bed rest for sciatica". N. Engl. J. Med. 340 (6): 418–23. doi:10.1056/NEJM199902113400602. PMID 9971865.