PMID- 33080444 OWN - NLM STAT- MEDLINE DCOM- 20210621 LR - 20210621 IS - 1532-3064 (Electronic) IS - 0954-6111 (Linking) VI - 174 DP - 2020 Nov-Dec TI - Clinical significance of minor salivary gland biopsy in patients with idiopathic interstitial pneumonia. PG - 106189 LID - S0954-6111(20)30329-2 [pii] LID - 10.1016/j.rmed.2020.106189 [doi] AB - BACKGROUND: Significant overlap may occur between idiopathic interstitial pneumonia (IIP) and connective tissue diseases (CTDs) that do not meet the established classification criteria for any known CTDs (i.e., occult CTD). Performing minor salivary gland biopsy (MSGB) to detect occult primary Sjogren's syndrome (pSS) in IIP patients is not well studied. METHODS: Consecutive IIP patients underwent MSGB to determine the prevalence of positive MSGB findings. Furthermore, we characterised the clinical, physiological and serological profiles of the MSGB-positive patients. Cox regression models were used to identify independent predictors of survival. RESULTS: The data of 155 patients with IIP were available for analysis. Sixty patients (38.7%) had positive MSGB findings. Of them, the mean age was 63.3 years, 51.6% were women, usual interstitial pneumonia (UIP) was the predominant pattern (63.3%), and seronegative antibodies (61.6%) were likely. Patients with positive MSGB findings had significantly greater survival than those with negative MSGB findings (p = 0.041). After stratifying the MSGB cohort based on the presence of a UIP pattern, no significant difference in survival was noted between those with positive MSGB-UIP pattern and those with a negative MSGB-UIP pattern (p = 0.231). Multivariate analysis on all UIP patients showed that higher forced vital capacity (p = 0.010) and smoking status (p = 0.035) were independently associated with survival. CONCLUSIONS: A substantial number of IIP patients had underlying occult CTD, highlighting the importance of performing MSGB to identify the salivary component of pSS when evaluating patients with interstitial lung disease of undetermined aetiology. CI - Copyright (c) 2020 Elsevier Ltd. All rights reserved. FAU - Alhamad, Esam H AU - Alhamad EH AD - Department of Medicine, Division of Pulmonary Medicine, College of Medicine, King Saud University, Riyadh, Saudi Arabia. Electronic address: esamalhamad@yahoo.com. FAU - Cal, Joseph G AU - Cal JG AD - Department of Medicine, Division of Pulmonary Medicine, College of Medicine, King Saud University, Riyadh, Saudi Arabia. FAU - Paramasivam, Muthurajan P AU - Paramasivam MP AD - Department of Medicine, Division of Pulmonary Medicine, College of Medicine, King Saud University, Riyadh, Saudi Arabia. FAU - AlEssa, Mohammed AU - AlEssa M AD - Department of Otolaryngology, Head and Neck Surgery, College of Medicine, King Saud University, Riyadh, Saudi Arabia. FAU - Alrajhi, Nuha N AU - Alrajhi NN AD - Department of Medicine, Division of Pulmonary Medicine, College of Medicine, King Saud University, Riyadh, Saudi Arabia. FAU - Omair, Mohammed A AU - Omair MA AD - Department of Medicine, Division of Rheumatology Medicine, College of Medicine, King Saud University, Riyadh, Saudi Arabia. FAU - AlRikabi, Ammar C AU - AlRikabi AC AD - Department of Pathology, College of Medicine, King Saud University, Riyadh, Saudi Arabia. FAU - AlBoukai, Ahmad A AU - AlBoukai AA AD - Department of Radiology, College of Medicine, King Saud University, Riyadh, Saudi Arabia. LA - eng PT - Journal Article DEP - 20201009 PL - England TA - Respir Med JT - Respiratory medicine JID - 8908438 SB - IM MH - Aged MH - Biopsy/*methods MH - Female MH - Humans MH - Idiopathic Interstitial Pneumonias/*diagnosis/etiology/mortality/*pathology MH - Male MH - Middle Aged MH - Salivary Glands/*pathology MH - Sjogren's Syndrome/complications/diagnosis/pathology MH - Survival Rate OTO - NOTNLM OT - Idiopathic interstitial pneumonia OT - Idiopathic pulmonary fibrosis OT - Minor salivary gland biopsy OT - Occult connective tissue disease OT - Primary Sjogren's syndrome OT - Survival EDAT- 2020/10/21 06:00 MHDA- 2021/06/22 06:00 CRDT- 2020/10/20 20:10 PHST- 2020/06/13 00:00 [received] PHST- 2020/09/21 00:00 [revised] PHST- 2020/10/08 00:00 [accepted] PHST- 2020/10/21 06:00 [pubmed] PHST- 2021/06/22 06:00 [medline] PHST- 2020/10/20 20:10 [entrez] AID - S0954-6111(20)30329-2 [pii] AID - 10.1016/j.rmed.2020.106189 [doi] PST - ppublish SO - Respir Med. 2020 Nov-Dec;174:106189. doi: 10.1016/j.rmed.2020.106189. Epub 2020 Oct 9.