Presentation on theme: "Dr. Zulf Mughal Consultant in Paediatric Bone Disorders Department of Paediatric Endocrinology Royal Manchester Childrens Hospital M13 9WL Vitamin D Deficiency."— Presentation transcript:
Dr. Zulf Mughal Consultant in Paediatric Bone Disorders Department of Paediatric Endocrinology Royal Manchester Childrens Hospital M13 9WL Vitamin D Deficiency and Fractures Bone Study Day, 28 th September 2012
Four-month-old baby with rickets 'was shaken to death‘ Brain damage so severe he was 'incompatible with life' Staff at Great Ormond Street Hospital found multiple fractures including to Jayden's arms, leg and skull. (He also has Retinal Haemorrhages.) “This horrific story unfolded over six weeks in a panelled courtroom of London’s Old Bailey. Yet today, Jayden’s father and mother — Rohan, 22, and 19-year-old Chana — are free. The case against them was thrown out ten days ago after 60 medical and forensic experts at their murder trial disagreed over what really killed their son. Finally, the judge told the jury to find the couple not guilty because Jayden’s post- mortem revealed he had rickets, a serious childhood bone disease which had once been eradicated in this country nearly a century ago.” Sue Reid 18 th December 2011
LB of Islington v Al Alas and Wray  EWHC 865 (Fam) Jayden was an infant born to young parents of Afro-Caribbean origin Mother not advised to take vitamin D supplements during pregnancy He was breast fed from birth (no vitamin D supplement) At age of 4½ months, referred to the University Collage Hospital, London, with a history of: London, with a history of: Not crying or making any noise. Not crying or making any noise. Not opening his mouth (tongue was stuck to the roof of the mouth). Not opening his mouth (tongue was stuck to the roof of the mouth). Possibly having fits. Possibly having fits. After admission he started to fit & his condition rapidly deteriorated.
LB of Islington v Al Alas and Wray  EWHC 865 (Fam) The radiologist at UCH had queried the possibility of a metabolic bone disorder, such as rickets on CXR metabolic bone disorder, such as rickets on CXR Radiological investigations : multiple fractures, including a fracture of the skull & subdural brain haemorrhages a fracture of the skull & subdural brain haemorrhages Bilateral retinal haemorrhages. Jayden died three days later on the PICU at GOSH. Coroner's PM: Pathologist noted that Jayden had low serum Ca & raised ALP. She also noted radiological serum Ca & raised ALP. She also noted radiological features of rickets. Histology showed florid rickets. features of rickets. Histology showed florid rickets.
LB of Islington v Al Alas and Wray  EWHC 865 (Fam) At the conclusion of the hearing held before Mrs Justice Theis, all allegations against Jayden’s parents were found not proven. Mrs Justice Theis concluded that Jayden’s fractures could have been caused by the day to day handling, due to fragility of Jayden's bones as a result of the his severe vitamin D deficiency rickets. However, she concluded that the subdural haemorrhages were more likely to be caused by trauma.
LB of Islington v Al Alas and Wray  EWHC 865 (Fam) Jo Delahunty QC & Kate Purkiss IMPLICATIONS
Severe Vitamin D Deficiency & Fractures
Rickets & Fractures
VDDR Type I Ca 2.06 mmol/l P 0.61 mmol/l (1.1 – 2.0) ALP 4028 IU/l (100 - 733) PTH 989 pg/ml (10 - 60) 25(OH)D 22 ng/ml 2 D 18 pg/ml (20 - 50) 1,25(OH) 2 D 18 pg/ml (20 - 50) Novel inactivating mutations in the CYP27B1 gene
Severe Vitamin D & Calcium Deficiency Rickets Neglect ? Ca: 1.80 mmol/l (2.2 -2.65) P: 0.76 mmol/l (1 – 1.8) ALP:13,138 iu/l ( up to 600) 25(OH)D: 2.8 ng/ml (15 - 30) PTH: 1,503 pg/ml (10 - 60) Ca intake ~ 150 mg/day
Fractures in under-6-month-old exclusively breast-fed infants born to immigrant parents: nonaccidental injury? S Senniappan, A Elazabi, I Doughty, M Z Mughal. Acta Paediatr. 2008; 97(7):836-7
A typical Instruction
Case of AR At the age of 9 weeks AR sustained a head injury HISTORY: Mum giving a massage with Johnson’s baby oil. AR slipped out of her hands and fell head first onto the living room floor. Height of fall ~ 45 inches. Communication problems – inconsistent history. SKELETAL SURVEY: A parietal fracture extending from ‘ear to ear’ Compression fractures of T2, T3, T4 & T5
Case of AR
Right Left Case of AR
Mum of Pakistani origin. Not prescribed vitamin D during pregnancy. AR born at term & exclusively breast-fed after birth. He was not receiving vitamin D supplements. November 2010. GP tested mum’s vitamin D status because of H/O ‘aches & pains’. Her serum 25OHD 6 ng/ml. (AR’s serum 25OHD at presentation 13 ng/ml.) FINDING OF FACT HEARING: Was AR’s low serum 25OHD (& possibly maternal vitamin D deficiency during pregnancy ) responsible/contributory factor in causation of fractures?
118 < 2 year old with fractures - 60% accidental, 31% non-accidental & 9% indeterminate cause 39% were vitamin D deficient or insufficient Vitamin D levels in those with accidental & non-accidental fractures not different.
Summary Subclinical vitamin D deficiency is very common. Severe vitamin D deficiency is usually associated with elevated serum PTH concentrations. Pathological fractures do occur in infants who suffer from severe vitamin D deficiency rickets. There is no evidence that subclinical vitamin D deficiency causes fractures.
Vitamin D deficiency and Fractures Position statement of the British Paediatric & Adolescent Bone Group In the context of unexplained fractures in infancy it is our opinion that unless there is radiological evidence of rickets using conventional X-ray techniques and biochemical evidence of rickets (i.e. abnormal blood levels of calcium, phosphate, alkaline phosphatase or parathyroid hormone) that the level of 25 hydroxyvitamin D is not relevant to the causation of the fractures.